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Date: Wed, 30 Aug 2023 17:02:43 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
torvalds@...ux-foundation.org, stable@...r.kernel.org
Cc: lwn@....net, jslaby@...e.cz,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: Linux 4.19.293
diff --git a/Makefile b/Makefile
index fcd6a9b17301..5965df0393fd 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 4
PATCHLEVEL = 19
-SUBLEVEL = 292
+SUBLEVEL = 293
EXTRAVERSION =
NAME = "People's Front"
diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h
index 4e2ee743088f..51faee420745 100644
--- a/arch/mips/include/asm/cpu-features.h
+++ b/arch/mips/include/asm/cpu-features.h
@@ -111,7 +111,24 @@
#define cpu_has_tx39_cache __opt(MIPS_CPU_TX39_CACHE)
#endif
#ifndef cpu_has_octeon_cache
-#define cpu_has_octeon_cache 0
+#define cpu_has_octeon_cache \
+({ \
+ int __res; \
+ \
+ switch (boot_cpu_type()) { \
+ case CPU_CAVIUM_OCTEON: \
+ case CPU_CAVIUM_OCTEON_PLUS: \
+ case CPU_CAVIUM_OCTEON2: \
+ case CPU_CAVIUM_OCTEON3: \
+ __res = 1; \
+ break; \
+ \
+ default: \
+ __res = 0; \
+ } \
+ \
+ __res; \
+})
#endif
/* Don't override `cpu_has_fpu' to 1 or the "nofpu" option won't work. */
#ifndef cpu_has_fpu
@@ -332,7 +349,7 @@
({ \
int __res; \
\
- switch (current_cpu_type()) { \
+ switch (boot_cpu_type()) { \
case CPU_M14KC: \
case CPU_74K: \
case CPU_1074K: \
diff --git a/arch/mips/include/asm/dec/prom.h b/arch/mips/include/asm/dec/prom.h
index 09538ff5e924..6f0405ba27d6 100644
--- a/arch/mips/include/asm/dec/prom.h
+++ b/arch/mips/include/asm/dec/prom.h
@@ -74,7 +74,7 @@ static inline bool prom_is_rex(u32 magic)
*/
typedef struct {
int pagesize;
- unsigned char bitmap[0];
+ unsigned char bitmap[];
} memmap;
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index f0e09d5f0bed..3be56d857d57 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -181,6 +181,7 @@ config PPC
select HAVE_ARCH_SECCOMP_FILTER
select HAVE_ARCH_TRACEHOOK
select HAVE_CBPF_JIT if !PPC64
+ select HAVE_STACKPROTECTOR if $(cc-option,-mstack-protector-guard=tls) && PPC32
select HAVE_CONTEXT_TRACKING if PPC64
select HAVE_DEBUG_KMEMLEAK
select HAVE_DEBUG_STACKOVERFLOW
diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug
index 923b3b794d13..1f54bb93b5cc 100644
--- a/arch/powerpc/Kconfig.debug
+++ b/arch/powerpc/Kconfig.debug
@@ -368,10 +368,6 @@ config PPC_PTDUMP
If you are unsure, say N.
-config PPC_HTDUMP
- def_bool y
- depends on PPC_PTDUMP && PPC_BOOK3S_64
-
config PPC_FAST_ENDIAN_SWITCH
bool "Deprecated fast endian-switch syscall"
depends on DEBUG_KERNEL && PPC_BOOK3S_64
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index b2e0fd873562..daddada1a390 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -113,6 +113,9 @@ KBUILD_LDFLAGS += -m elf$(BITS)$(LDEMULATION)
KBUILD_ARFLAGS += --target=elf$(BITS)-$(GNUTARGET)
endif
+cflags-$(CONFIG_STACKPROTECTOR) += -mstack-protector-guard=tls
+cflags-$(CONFIG_STACKPROTECTOR) += -mstack-protector-guard-reg=r2
+
LDFLAGS_vmlinux-y := -Bstatic
LDFLAGS_vmlinux-$(CONFIG_RELOCATABLE) := -pie
LDFLAGS_vmlinux := $(LDFLAGS_vmlinux-y)
@@ -419,9 +422,12 @@ archclean:
archprepare: checkbin
-# Use the file '.tmp_gas_check' for binutils tests, as gas won't output
-# to stdout and these checks are run even on install targets.
-TOUT := .tmp_gas_check
+ifdef CONFIG_STACKPROTECTOR
+prepare: stack_protector_prepare
+
+stack_protector_prepare: prepare0
+ $(eval KBUILD_CFLAGS += -mstack-protector-guard-offset=$(shell awk '{if ($$2 == "TASK_CANARY") print $$3;}' include/generated/asm-offsets.h))
+endif
# Check toolchain versions:
# - gcc-4.6 is the minimum kernel-wide version so nothing required.
@@ -433,7 +439,11 @@ checkbin:
echo -n '*** Please use a different binutils version.' ; \
false ; \
fi
-
-
-CLEAN_FILES += $(TOUT)
-
+ @if test "x${CONFIG_FTRACE_MCOUNT_USE_RECORDMCOUNT}" = "xy" -a \
+ "x${CONFIG_LD_IS_BFD}" = "xy" -a \
+ "${CONFIG_LD_VERSION}" = "23700" ; then \
+ echo -n '*** binutils 2.37 drops unused section symbols, which recordmcount ' ; \
+ echo 'is unable to handle.' ; \
+ echo '*** Please use a different binutils version.' ; \
+ false ; \
+ fi
diff --git a/arch/powerpc/include/asm/book3s/32/mmu-hash.h b/arch/powerpc/include/asm/book3s/32/mmu-hash.h
index e38c91388c40..958b18cecc96 100644
--- a/arch/powerpc/include/asm/book3s/32/mmu-hash.h
+++ b/arch/powerpc/include/asm/book3s/32/mmu-hash.h
@@ -34,14 +34,20 @@
#define BAT_PHYS_ADDR(x) ((u32)((x & 0x00000000fffe0000ULL) | \
((x & 0x0000000e00000000ULL) >> 24) | \
((x & 0x0000000100000000ULL) >> 30)))
+#define PHYS_BAT_ADDR(x) (((u64)(x) & 0x00000000fffe0000ULL) | \
+ (((u64)(x) << 24) & 0x0000000e00000000ULL) | \
+ (((u64)(x) << 30) & 0x0000000100000000ULL))
#else
#define BAT_PHYS_ADDR(x) (x)
+#define PHYS_BAT_ADDR(x) ((x) & 0xfffe0000)
#endif
struct ppc_bat {
u32 batu;
u32 batl;
};
+
+typedef struct page *pgtable_t;
#endif /* !__ASSEMBLY__ */
/*
diff --git a/arch/powerpc/include/asm/book3s/64/mmu.h b/arch/powerpc/include/asm/book3s/64/mmu.h
index 9c8c669a6b6a..488e7ed07e96 100644
--- a/arch/powerpc/include/asm/book3s/64/mmu.h
+++ b/arch/powerpc/include/asm/book3s/64/mmu.h
@@ -2,6 +2,8 @@
#ifndef _ASM_POWERPC_BOOK3S_64_MMU_H_
#define _ASM_POWERPC_BOOK3S_64_MMU_H_
+#include <asm/page.h>
+
#ifndef __ASSEMBLY__
/*
* Page size definition
@@ -24,6 +26,13 @@ struct mmu_psize_def {
};
extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
+/*
+ * For BOOK3s 64 with 4k and 64K linux page size
+ * we want to use pointers, because the page table
+ * actually store pfn
+ */
+typedef pte_t *pgtable_t;
+
#endif /* __ASSEMBLY__ */
/* 64-bit classic hash table MMU */
diff --git a/arch/powerpc/include/asm/mmu-40x.h b/arch/powerpc/include/asm/mmu-40x.h
deleted file mode 100644
index 74f4edb5916e..000000000000
--- a/arch/powerpc/include/asm/mmu-40x.h
+++ /dev/null
@@ -1,68 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_POWERPC_MMU_40X_H_
-#define _ASM_POWERPC_MMU_40X_H_
-
-/*
- * PPC40x support
- */
-
-#define PPC40X_TLB_SIZE 64
-
-/*
- * TLB entries are defined by a "high" tag portion and a "low" data
- * portion. On all architectures, the data portion is 32-bits.
- *
- * TLB entries are managed entirely under software control by reading,
- * writing, and searchoing using the 4xx-specific tlbre, tlbwr, and tlbsx
- * instructions.
- */
-
-#define TLB_LO 1
-#define TLB_HI 0
-
-#define TLB_DATA TLB_LO
-#define TLB_TAG TLB_HI
-
-/* Tag portion */
-
-#define TLB_EPN_MASK 0xFFFFFC00 /* Effective Page Number */
-#define TLB_PAGESZ_MASK 0x00000380
-#define TLB_PAGESZ(x) (((x) & 0x7) << 7)
-#define PAGESZ_1K 0
-#define PAGESZ_4K 1
-#define PAGESZ_16K 2
-#define PAGESZ_64K 3
-#define PAGESZ_256K 4
-#define PAGESZ_1M 5
-#define PAGESZ_4M 6
-#define PAGESZ_16M 7
-#define TLB_VALID 0x00000040 /* Entry is valid */
-
-/* Data portion */
-
-#define TLB_RPN_MASK 0xFFFFFC00 /* Real Page Number */
-#define TLB_PERM_MASK 0x00000300
-#define TLB_EX 0x00000200 /* Instruction execution allowed */
-#define TLB_WR 0x00000100 /* Writes permitted */
-#define TLB_ZSEL_MASK 0x000000F0
-#define TLB_ZSEL(x) (((x) & 0xF) << 4)
-#define TLB_ATTR_MASK 0x0000000F
-#define TLB_W 0x00000008 /* Caching is write-through */
-#define TLB_I 0x00000004 /* Caching is inhibited */
-#define TLB_M 0x00000002 /* Memory is coherent */
-#define TLB_G 0x00000001 /* Memory is guarded from prefetch */
-
-#ifndef __ASSEMBLY__
-
-typedef struct {
- unsigned int id;
- unsigned int active;
- unsigned long vdso_base;
-} mm_context_t;
-
-#endif /* !__ASSEMBLY__ */
-
-#define mmu_virtual_psize MMU_PAGE_4K
-#define mmu_linear_psize MMU_PAGE_256M
-
-#endif /* _ASM_POWERPC_MMU_40X_H_ */
diff --git a/arch/powerpc/include/asm/mmu-44x.h b/arch/powerpc/include/asm/mmu-44x.h
deleted file mode 100644
index 295b3dbb2698..000000000000
--- a/arch/powerpc/include/asm/mmu-44x.h
+++ /dev/null
@@ -1,153 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_POWERPC_MMU_44X_H_
-#define _ASM_POWERPC_MMU_44X_H_
-/*
- * PPC440 support
- */
-
-#include <asm/asm-const.h>
-
-#define PPC44x_MMUCR_TID 0x000000ff
-#define PPC44x_MMUCR_STS 0x00010000
-
-#define PPC44x_TLB_PAGEID 0
-#define PPC44x_TLB_XLAT 1
-#define PPC44x_TLB_ATTRIB 2
-
-/* Page identification fields */
-#define PPC44x_TLB_EPN_MASK 0xfffffc00 /* Effective Page Number */
-#define PPC44x_TLB_VALID 0x00000200 /* Valid flag */
-#define PPC44x_TLB_TS 0x00000100 /* Translation address space */
-#define PPC44x_TLB_1K 0x00000000 /* Page sizes */
-#define PPC44x_TLB_4K 0x00000010
-#define PPC44x_TLB_16K 0x00000020
-#define PPC44x_TLB_64K 0x00000030
-#define PPC44x_TLB_256K 0x00000040
-#define PPC44x_TLB_1M 0x00000050
-#define PPC44x_TLB_16M 0x00000070
-#define PPC44x_TLB_256M 0x00000090
-
-/* Translation fields */
-#define PPC44x_TLB_RPN_MASK 0xfffffc00 /* Real Page Number */
-#define PPC44x_TLB_ERPN_MASK 0x0000000f
-
-/* Storage attribute and access control fields */
-#define PPC44x_TLB_ATTR_MASK 0x0000ff80
-#define PPC44x_TLB_U0 0x00008000 /* User 0 */
-#define PPC44x_TLB_U1 0x00004000 /* User 1 */
-#define PPC44x_TLB_U2 0x00002000 /* User 2 */
-#define PPC44x_TLB_U3 0x00001000 /* User 3 */
-#define PPC44x_TLB_W 0x00000800 /* Caching is write-through */
-#define PPC44x_TLB_I 0x00000400 /* Caching is inhibited */
-#define PPC44x_TLB_M 0x00000200 /* Memory is coherent */
-#define PPC44x_TLB_G 0x00000100 /* Memory is guarded */
-#define PPC44x_TLB_E 0x00000080 /* Memory is little endian */
-
-#define PPC44x_TLB_PERM_MASK 0x0000003f
-#define PPC44x_TLB_UX 0x00000020 /* User execution */
-#define PPC44x_TLB_UW 0x00000010 /* User write */
-#define PPC44x_TLB_UR 0x00000008 /* User read */
-#define PPC44x_TLB_SX 0x00000004 /* Super execution */
-#define PPC44x_TLB_SW 0x00000002 /* Super write */
-#define PPC44x_TLB_SR 0x00000001 /* Super read */
-
-/* Number of TLB entries */
-#define PPC44x_TLB_SIZE 64
-
-/* 47x bits */
-#define PPC47x_MMUCR_TID 0x0000ffff
-#define PPC47x_MMUCR_STS 0x00010000
-
-/* Page identification fields */
-#define PPC47x_TLB0_EPN_MASK 0xfffff000 /* Effective Page Number */
-#define PPC47x_TLB0_VALID 0x00000800 /* Valid flag */
-#define PPC47x_TLB0_TS 0x00000400 /* Translation address space */
-#define PPC47x_TLB0_4K 0x00000000
-#define PPC47x_TLB0_16K 0x00000010
-#define PPC47x_TLB0_64K 0x00000030
-#define PPC47x_TLB0_1M 0x00000070
-#define PPC47x_TLB0_16M 0x000000f0
-#define PPC47x_TLB0_256M 0x000001f0
-#define PPC47x_TLB0_1G 0x000003f0
-#define PPC47x_TLB0_BOLTED_R 0x00000008 /* tlbre only */
-
-/* Translation fields */
-#define PPC47x_TLB1_RPN_MASK 0xfffff000 /* Real Page Number */
-#define PPC47x_TLB1_ERPN_MASK 0x000003ff
-
-/* Storage attribute and access control fields */
-#define PPC47x_TLB2_ATTR_MASK 0x0003ff80
-#define PPC47x_TLB2_IL1I 0x00020000 /* Memory is guarded */
-#define PPC47x_TLB2_IL1D 0x00010000 /* Memory is guarded */
-#define PPC47x_TLB2_U0 0x00008000 /* User 0 */
-#define PPC47x_TLB2_U1 0x00004000 /* User 1 */
-#define PPC47x_TLB2_U2 0x00002000 /* User 2 */
-#define PPC47x_TLB2_U3 0x00001000 /* User 3 */
-#define PPC47x_TLB2_W 0x00000800 /* Caching is write-through */
-#define PPC47x_TLB2_I 0x00000400 /* Caching is inhibited */
-#define PPC47x_TLB2_M 0x00000200 /* Memory is coherent */
-#define PPC47x_TLB2_G 0x00000100 /* Memory is guarded */
-#define PPC47x_TLB2_E 0x00000080 /* Memory is little endian */
-#define PPC47x_TLB2_PERM_MASK 0x0000003f
-#define PPC47x_TLB2_UX 0x00000020 /* User execution */
-#define PPC47x_TLB2_UW 0x00000010 /* User write */
-#define PPC47x_TLB2_UR 0x00000008 /* User read */
-#define PPC47x_TLB2_SX 0x00000004 /* Super execution */
-#define PPC47x_TLB2_SW 0x00000002 /* Super write */
-#define PPC47x_TLB2_SR 0x00000001 /* Super read */
-#define PPC47x_TLB2_U_RWX (PPC47x_TLB2_UX|PPC47x_TLB2_UW|PPC47x_TLB2_UR)
-#define PPC47x_TLB2_S_RWX (PPC47x_TLB2_SX|PPC47x_TLB2_SW|PPC47x_TLB2_SR)
-#define PPC47x_TLB2_S_RW (PPC47x_TLB2_SW | PPC47x_TLB2_SR)
-#define PPC47x_TLB2_IMG (PPC47x_TLB2_I | PPC47x_TLB2_M | PPC47x_TLB2_G)
-
-#ifndef __ASSEMBLY__
-
-extern unsigned int tlb_44x_hwater;
-extern unsigned int tlb_44x_index;
-
-typedef struct {
- unsigned int id;
- unsigned int active;
- unsigned long vdso_base;
-} mm_context_t;
-
-#endif /* !__ASSEMBLY__ */
-
-#ifndef CONFIG_PPC_EARLY_DEBUG_44x
-#define PPC44x_EARLY_TLBS 1
-#else
-#define PPC44x_EARLY_TLBS 2
-#define PPC44x_EARLY_DEBUG_VIRTADDR (ASM_CONST(0xf0000000) \
- | (ASM_CONST(CONFIG_PPC_EARLY_DEBUG_44x_PHYSLOW) & 0xffff))
-#endif
-
-/* Size of the TLBs used for pinning in lowmem */
-#define PPC_PIN_SIZE (1 << 28) /* 256M */
-
-#if defined(CONFIG_PPC_4K_PAGES)
-#define PPC44x_TLBE_SIZE PPC44x_TLB_4K
-#define PPC47x_TLBE_SIZE PPC47x_TLB0_4K
-#define mmu_virtual_psize MMU_PAGE_4K
-#elif defined(CONFIG_PPC_16K_PAGES)
-#define PPC44x_TLBE_SIZE PPC44x_TLB_16K
-#define PPC47x_TLBE_SIZE PPC47x_TLB0_16K
-#define mmu_virtual_psize MMU_PAGE_16K
-#elif defined(CONFIG_PPC_64K_PAGES)
-#define PPC44x_TLBE_SIZE PPC44x_TLB_64K
-#define PPC47x_TLBE_SIZE PPC47x_TLB0_64K
-#define mmu_virtual_psize MMU_PAGE_64K
-#elif defined(CONFIG_PPC_256K_PAGES)
-#define PPC44x_TLBE_SIZE PPC44x_TLB_256K
-#define mmu_virtual_psize MMU_PAGE_256K
-#else
-#error "Unsupported PAGE_SIZE"
-#endif
-
-#define mmu_linear_psize MMU_PAGE_256M
-
-#define PPC44x_PGD_OFF_SHIFT (32 - PGDIR_SHIFT + PGD_T_LOG2)
-#define PPC44x_PGD_OFF_MASK_BIT (PGDIR_SHIFT - PGD_T_LOG2)
-#define PPC44x_PTE_ADD_SHIFT (32 - PGDIR_SHIFT + PTE_SHIFT + PTE_T_LOG2)
-#define PPC44x_PTE_ADD_MASK_BIT (32 - PTE_T_LOG2 - PTE_SHIFT)
-
-#endif /* _ASM_POWERPC_MMU_44X_H_ */
diff --git a/arch/powerpc/include/asm/mmu-8xx.h b/arch/powerpc/include/asm/mmu-8xx.h
deleted file mode 100644
index 193f53116c7a..000000000000
--- a/arch/powerpc/include/asm/mmu-8xx.h
+++ /dev/null
@@ -1,244 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_POWERPC_MMU_8XX_H_
-#define _ASM_POWERPC_MMU_8XX_H_
-/*
- * PPC8xx support
- */
-
-/* Control/status registers for the MPC8xx.
- * A write operation to these registers causes serialized access.
- * During software tablewalk, the registers used perform mask/shift-add
- * operations when written/read. A TLB entry is created when the Mx_RPN
- * is written, and the contents of several registers are used to
- * create the entry.
- */
-#define SPRN_MI_CTR 784 /* Instruction TLB control register */
-#define MI_GPM 0x80000000 /* Set domain manager mode */
-#define MI_PPM 0x40000000 /* Set subpage protection */
-#define MI_CIDEF 0x20000000 /* Set cache inhibit when MMU dis */
-#define MI_RSV4I 0x08000000 /* Reserve 4 TLB entries */
-#define MI_PPCS 0x02000000 /* Use MI_RPN prob/priv state */
-#define MI_IDXMASK 0x00001f00 /* TLB index to be loaded */
-#define MI_RESETVAL 0x00000000 /* Value of register at reset */
-
-/* These are the Ks and Kp from the PowerPC books. For proper operation,
- * Ks = 0, Kp = 1.
- */
-#define SPRN_MI_AP 786
-#define MI_Ks 0x80000000 /* Should not be set */
-#define MI_Kp 0x40000000 /* Should always be set */
-
-/*
- * All pages' PP data bits are set to either 001 or 011 by copying _PAGE_EXEC
- * into bit 21 in the ITLBmiss handler (bit 21 is the middle bit), which means
- * respectively NA for All or X for Supervisor and no access for User.
- * Then we use the APG to say whether accesses are according to Page rules or
- * "all Supervisor" rules (Access to all)
- * Therefore, we define 2 APG groups. lsb is _PMD_USER
- * 0 => No user => 01 (all accesses performed according to page definition)
- * 1 => User => 00 (all accesses performed as supervisor iaw page definition)
- * We define all 16 groups so that all other bits of APG can take any value
- */
-#define MI_APG_INIT 0x44444444
-
-/* The effective page number register. When read, contains the information
- * about the last instruction TLB miss. When MI_RPN is written, bits in
- * this register are used to create the TLB entry.
- */
-#define SPRN_MI_EPN 787
-#define MI_EPNMASK 0xfffff000 /* Effective page number for entry */
-#define MI_EVALID 0x00000200 /* Entry is valid */
-#define MI_ASIDMASK 0x0000000f /* ASID match value */
- /* Reset value is undefined */
-
-/* A "level 1" or "segment" or whatever you want to call it register.
- * For the instruction TLB, it contains bits that get loaded into the
- * TLB entry when the MI_RPN is written.
- */
-#define SPRN_MI_TWC 789
-#define MI_APG 0x000001e0 /* Access protection group (0) */
-#define MI_GUARDED 0x00000010 /* Guarded storage */
-#define MI_PSMASK 0x0000000c /* Mask of page size bits */
-#define MI_PS8MEG 0x0000000c /* 8M page size */
-#define MI_PS512K 0x00000004 /* 512K page size */
-#define MI_PS4K_16K 0x00000000 /* 4K or 16K page size */
-#define MI_SVALID 0x00000001 /* Segment entry is valid */
- /* Reset value is undefined */
-
-/* Real page number. Defined by the pte. Writing this register
- * causes a TLB entry to be created for the instruction TLB, using
- * additional information from the MI_EPN, and MI_TWC registers.
- */
-#define SPRN_MI_RPN 790
-#define MI_SPS16K 0x00000008 /* Small page size (0 = 4k, 1 = 16k) */
-
-/* Define an RPN value for mapping kernel memory to large virtual
- * pages for boot initialization. This has real page number of 0,
- * large page size, shared page, cache enabled, and valid.
- * Also mark all subpages valid and write access.
- */
-#define MI_BOOTINIT 0x000001fd
-
-#define SPRN_MD_CTR 792 /* Data TLB control register */
-#define MD_GPM 0x80000000 /* Set domain manager mode */
-#define MD_PPM 0x40000000 /* Set subpage protection */
-#define MD_CIDEF 0x20000000 /* Set cache inhibit when MMU dis */
-#define MD_WTDEF 0x10000000 /* Set writethrough when MMU dis */
-#define MD_RSV4I 0x08000000 /* Reserve 4 TLB entries */
-#define MD_TWAM 0x04000000 /* Use 4K page hardware assist */
-#define MD_PPCS 0x02000000 /* Use MI_RPN prob/priv state */
-#define MD_IDXMASK 0x00001f00 /* TLB index to be loaded */
-#define MD_RESETVAL 0x04000000 /* Value of register at reset */
-
-#define SPRN_M_CASID 793 /* Address space ID (context) to match */
-#define MC_ASIDMASK 0x0000000f /* Bits used for ASID value */
-
-
-/* These are the Ks and Kp from the PowerPC books. For proper operation,
- * Ks = 0, Kp = 1.
- */
-#define SPRN_MD_AP 794
-#define MD_Ks 0x80000000 /* Should not be set */
-#define MD_Kp 0x40000000 /* Should always be set */
-
-/*
- * All pages' PP data bits are set to either 000 or 011 or 001, which means
- * respectively RW for Supervisor and no access for User, or RO for
- * Supervisor and no access for user and NA for ALL.
- * Then we use the APG to say whether accesses are according to Page rules or
- * "all Supervisor" rules (Access to all)
- * Therefore, we define 2 APG groups. lsb is _PMD_USER
- * 0 => No user => 01 (all accesses performed according to page definition)
- * 1 => User => 00 (all accesses performed as supervisor iaw page definition)
- * We define all 16 groups so that all other bits of APG can take any value
- */
-#define MD_APG_INIT 0x44444444
-
-/* The effective page number register. When read, contains the information
- * about the last instruction TLB miss. When MD_RPN is written, bits in
- * this register are used to create the TLB entry.
- */
-#define SPRN_MD_EPN 795
-#define MD_EPNMASK 0xfffff000 /* Effective page number for entry */
-#define MD_EVALID 0x00000200 /* Entry is valid */
-#define MD_ASIDMASK 0x0000000f /* ASID match value */
- /* Reset value is undefined */
-
-/* The pointer to the base address of the first level page table.
- * During a software tablewalk, reading this register provides the address
- * of the entry associated with MD_EPN.
- */
-#define SPRN_M_TWB 796
-#define M_L1TB 0xfffff000 /* Level 1 table base address */
-#define M_L1INDX 0x00000ffc /* Level 1 index, when read */
- /* Reset value is undefined */
-
-/* A "level 1" or "segment" or whatever you want to call it register.
- * For the data TLB, it contains bits that get loaded into the TLB entry
- * when the MD_RPN is written. It is also provides the hardware assist
- * for finding the PTE address during software tablewalk.
- */
-#define SPRN_MD_TWC 797
-#define MD_L2TB 0xfffff000 /* Level 2 table base address */
-#define MD_L2INDX 0xfffffe00 /* Level 2 index (*pte), when read */
-#define MD_APG 0x000001e0 /* Access protection group (0) */
-#define MD_GUARDED 0x00000010 /* Guarded storage */
-#define MD_PSMASK 0x0000000c /* Mask of page size bits */
-#define MD_PS8MEG 0x0000000c /* 8M page size */
-#define MD_PS512K 0x00000004 /* 512K page size */
-#define MD_PS4K_16K 0x00000000 /* 4K or 16K page size */
-#define MD_WT 0x00000002 /* Use writethrough page attribute */
-#define MD_SVALID 0x00000001 /* Segment entry is valid */
- /* Reset value is undefined */
-
-
-/* Real page number. Defined by the pte. Writing this register
- * causes a TLB entry to be created for the data TLB, using
- * additional information from the MD_EPN, and MD_TWC registers.
- */
-#define SPRN_MD_RPN 798
-#define MD_SPS16K 0x00000008 /* Small page size (0 = 4k, 1 = 16k) */
-
-/* This is a temporary storage register that could be used to save
- * a processor working register during a tablewalk.
- */
-#define SPRN_M_TW 799
-
-#ifdef CONFIG_PPC_MM_SLICES
-#include <asm/nohash/32/slice.h>
-#define SLICE_ARRAY_SIZE (1 << (32 - SLICE_LOW_SHIFT - 1))
-#endif
-
-#ifndef __ASSEMBLY__
-struct slice_mask {
- u64 low_slices;
- DECLARE_BITMAP(high_slices, 0);
-};
-
-typedef struct {
- unsigned int id;
- unsigned int active;
- unsigned long vdso_base;
-#ifdef CONFIG_PPC_MM_SLICES
- u16 user_psize; /* page size index */
- unsigned char low_slices_psize[SLICE_ARRAY_SIZE];
- unsigned char high_slices_psize[0];
- unsigned long slb_addr_limit;
- struct slice_mask mask_base_psize; /* 4k or 16k */
-# ifdef CONFIG_HUGETLB_PAGE
- struct slice_mask mask_512k;
- struct slice_mask mask_8m;
-# endif
-#endif
-} mm_context_t;
-
-#define PHYS_IMMR_BASE (mfspr(SPRN_IMMR) & 0xfff80000)
-#define VIRT_IMMR_BASE (__fix_to_virt(FIX_IMMR_BASE))
-
-/* Page size definitions, common between 32 and 64-bit
- *
- * shift : is the "PAGE_SHIFT" value for that page size
- * penc : is the pte encoding mask
- *
- */
-struct mmu_psize_def {
- unsigned int shift; /* number of bits */
- unsigned int enc; /* PTE encoding */
- unsigned int ind; /* Corresponding indirect page size shift */
- unsigned int flags;
-#define MMU_PAGE_SIZE_DIRECT 0x1 /* Supported as a direct size */
-#define MMU_PAGE_SIZE_INDIRECT 0x2 /* Supported as an indirect size */
-};
-
-extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
-
-static inline int shift_to_mmu_psize(unsigned int shift)
-{
- int psize;
-
- for (psize = 0; psize < MMU_PAGE_COUNT; ++psize)
- if (mmu_psize_defs[psize].shift == shift)
- return psize;
- return -1;
-}
-
-static inline unsigned int mmu_psize_to_shift(unsigned int mmu_psize)
-{
- if (mmu_psize_defs[mmu_psize].shift)
- return mmu_psize_defs[mmu_psize].shift;
- BUG();
-}
-
-#endif /* !__ASSEMBLY__ */
-
-#if defined(CONFIG_PPC_4K_PAGES)
-#define mmu_virtual_psize MMU_PAGE_4K
-#elif defined(CONFIG_PPC_16K_PAGES)
-#define mmu_virtual_psize MMU_PAGE_16K
-#else
-#error "Unsupported PAGE_SIZE"
-#endif
-
-#define mmu_linear_psize MMU_PAGE_8M
-
-#endif /* _ASM_POWERPC_MMU_8XX_H_ */
diff --git a/arch/powerpc/include/asm/mmu-book3e.h b/arch/powerpc/include/asm/mmu-book3e.h
deleted file mode 100644
index e20072972e35..000000000000
--- a/arch/powerpc/include/asm/mmu-book3e.h
+++ /dev/null
@@ -1,313 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_POWERPC_MMU_BOOK3E_H_
-#define _ASM_POWERPC_MMU_BOOK3E_H_
-/*
- * Freescale Book-E/Book-3e (ISA 2.06+) MMU support
- */
-
-/* Book-3e defined page sizes */
-#define BOOK3E_PAGESZ_1K 0
-#define BOOK3E_PAGESZ_2K 1
-#define BOOK3E_PAGESZ_4K 2
-#define BOOK3E_PAGESZ_8K 3
-#define BOOK3E_PAGESZ_16K 4
-#define BOOK3E_PAGESZ_32K 5
-#define BOOK3E_PAGESZ_64K 6
-#define BOOK3E_PAGESZ_128K 7
-#define BOOK3E_PAGESZ_256K 8
-#define BOOK3E_PAGESZ_512K 9
-#define BOOK3E_PAGESZ_1M 10
-#define BOOK3E_PAGESZ_2M 11
-#define BOOK3E_PAGESZ_4M 12
-#define BOOK3E_PAGESZ_8M 13
-#define BOOK3E_PAGESZ_16M 14
-#define BOOK3E_PAGESZ_32M 15
-#define BOOK3E_PAGESZ_64M 16
-#define BOOK3E_PAGESZ_128M 17
-#define BOOK3E_PAGESZ_256M 18
-#define BOOK3E_PAGESZ_512M 19
-#define BOOK3E_PAGESZ_1GB 20
-#define BOOK3E_PAGESZ_2GB 21
-#define BOOK3E_PAGESZ_4GB 22
-#define BOOK3E_PAGESZ_8GB 23
-#define BOOK3E_PAGESZ_16GB 24
-#define BOOK3E_PAGESZ_32GB 25
-#define BOOK3E_PAGESZ_64GB 26
-#define BOOK3E_PAGESZ_128GB 27
-#define BOOK3E_PAGESZ_256GB 28
-#define BOOK3E_PAGESZ_512GB 29
-#define BOOK3E_PAGESZ_1TB 30
-#define BOOK3E_PAGESZ_2TB 31
-
-/* MAS registers bit definitions */
-
-#define MAS0_TLBSEL_MASK 0x30000000
-#define MAS0_TLBSEL_SHIFT 28
-#define MAS0_TLBSEL(x) (((x) << MAS0_TLBSEL_SHIFT) & MAS0_TLBSEL_MASK)
-#define MAS0_GET_TLBSEL(mas0) (((mas0) & MAS0_TLBSEL_MASK) >> \
- MAS0_TLBSEL_SHIFT)
-#define MAS0_ESEL_MASK 0x0FFF0000
-#define MAS0_ESEL_SHIFT 16
-#define MAS0_ESEL(x) (((x) << MAS0_ESEL_SHIFT) & MAS0_ESEL_MASK)
-#define MAS0_NV(x) ((x) & 0x00000FFF)
-#define MAS0_HES 0x00004000
-#define MAS0_WQ_ALLWAYS 0x00000000
-#define MAS0_WQ_COND 0x00001000
-#define MAS0_WQ_CLR_RSRV 0x00002000
-
-#define MAS1_VALID 0x80000000
-#define MAS1_IPROT 0x40000000
-#define MAS1_TID(x) (((x) << 16) & 0x3FFF0000)
-#define MAS1_IND 0x00002000
-#define MAS1_TS 0x00001000
-#define MAS1_TSIZE_MASK 0x00000f80
-#define MAS1_TSIZE_SHIFT 7
-#define MAS1_TSIZE(x) (((x) << MAS1_TSIZE_SHIFT) & MAS1_TSIZE_MASK)
-#define MAS1_GET_TSIZE(mas1) (((mas1) & MAS1_TSIZE_MASK) >> MAS1_TSIZE_SHIFT)
-
-#define MAS2_EPN (~0xFFFUL)
-#define MAS2_X0 0x00000040
-#define MAS2_X1 0x00000020
-#define MAS2_W 0x00000010
-#define MAS2_I 0x00000008
-#define MAS2_M 0x00000004
-#define MAS2_G 0x00000002
-#define MAS2_E 0x00000001
-#define MAS2_WIMGE_MASK 0x0000001f
-#define MAS2_EPN_MASK(size) (~0 << (size + 10))
-#define MAS2_VAL(addr, size, flags) ((addr) & MAS2_EPN_MASK(size) | (flags))
-
-#define MAS3_RPN 0xFFFFF000
-#define MAS3_U0 0x00000200
-#define MAS3_U1 0x00000100
-#define MAS3_U2 0x00000080
-#define MAS3_U3 0x00000040
-#define MAS3_UX 0x00000020
-#define MAS3_SX 0x00000010
-#define MAS3_UW 0x00000008
-#define MAS3_SW 0x00000004
-#define MAS3_UR 0x00000002
-#define MAS3_SR 0x00000001
-#define MAS3_BAP_MASK 0x0000003f
-#define MAS3_SPSIZE 0x0000003e
-#define MAS3_SPSIZE_SHIFT 1
-
-#define MAS4_TLBSEL_MASK MAS0_TLBSEL_MASK
-#define MAS4_TLBSELD(x) MAS0_TLBSEL(x)
-#define MAS4_INDD 0x00008000 /* Default IND */
-#define MAS4_TSIZED(x) MAS1_TSIZE(x)
-#define MAS4_X0D 0x00000040
-#define MAS4_X1D 0x00000020
-#define MAS4_WD 0x00000010
-#define MAS4_ID 0x00000008
-#define MAS4_MD 0x00000004
-#define MAS4_GD 0x00000002
-#define MAS4_ED 0x00000001
-#define MAS4_WIMGED_MASK 0x0000001f /* Default WIMGE */
-#define MAS4_WIMGED_SHIFT 0
-#define MAS4_VLED MAS4_X1D /* Default VLE */
-#define MAS4_ACMD 0x000000c0 /* Default ACM */
-#define MAS4_ACMD_SHIFT 6
-#define MAS4_TSIZED_MASK 0x00000f80 /* Default TSIZE */
-#define MAS4_TSIZED_SHIFT 7
-
-#define MAS5_SGS 0x80000000
-
-#define MAS6_SPID0 0x3FFF0000
-#define MAS6_SPID1 0x00007FFE
-#define MAS6_ISIZE(x) MAS1_TSIZE(x)
-#define MAS6_SAS 0x00000001
-#define MAS6_SPID MAS6_SPID0
-#define MAS6_SIND 0x00000002 /* Indirect page */
-#define MAS6_SIND_SHIFT 1
-#define MAS6_SPID_MASK 0x3fff0000
-#define MAS6_SPID_SHIFT 16
-#define MAS6_ISIZE_MASK 0x00000f80
-#define MAS6_ISIZE_SHIFT 7
-
-#define MAS7_RPN 0xFFFFFFFF
-
-#define MAS8_TGS 0x80000000 /* Guest space */
-#define MAS8_VF 0x40000000 /* Virtualization Fault */
-#define MAS8_TLPID 0x000000ff
-
-/* Bit definitions for MMUCFG */
-#define MMUCFG_MAVN 0x00000003 /* MMU Architecture Version Number */
-#define MMUCFG_MAVN_V1 0x00000000 /* v1.0 */
-#define MMUCFG_MAVN_V2 0x00000001 /* v2.0 */
-#define MMUCFG_NTLBS 0x0000000c /* Number of TLBs */
-#define MMUCFG_PIDSIZE 0x000007c0 /* PID Reg Size */
-#define MMUCFG_TWC 0x00008000 /* TLB Write Conditional (v2.0) */
-#define MMUCFG_LRAT 0x00010000 /* LRAT Supported (v2.0) */
-#define MMUCFG_RASIZE 0x00fe0000 /* Real Addr Size */
-#define MMUCFG_LPIDSIZE 0x0f000000 /* LPID Reg Size */
-
-/* Bit definitions for MMUCSR0 */
-#define MMUCSR0_TLB1FI 0x00000002 /* TLB1 Flash invalidate */
-#define MMUCSR0_TLB0FI 0x00000004 /* TLB0 Flash invalidate */
-#define MMUCSR0_TLB2FI 0x00000040 /* TLB2 Flash invalidate */
-#define MMUCSR0_TLB3FI 0x00000020 /* TLB3 Flash invalidate */
-#define MMUCSR0_TLBFI (MMUCSR0_TLB0FI | MMUCSR0_TLB1FI | \
- MMUCSR0_TLB2FI | MMUCSR0_TLB3FI)
-#define MMUCSR0_TLB0PS 0x00000780 /* TLB0 Page Size */
-#define MMUCSR0_TLB1PS 0x00007800 /* TLB1 Page Size */
-#define MMUCSR0_TLB2PS 0x00078000 /* TLB2 Page Size */
-#define MMUCSR0_TLB3PS 0x00780000 /* TLB3 Page Size */
-
-/* MMUCFG bits */
-#define MMUCFG_MAVN_NASK 0x00000003
-#define MMUCFG_MAVN_V1_0 0x00000000
-#define MMUCFG_MAVN_V2_0 0x00000001
-#define MMUCFG_NTLB_MASK 0x0000000c
-#define MMUCFG_NTLB_SHIFT 2
-#define MMUCFG_PIDSIZE_MASK 0x000007c0
-#define MMUCFG_PIDSIZE_SHIFT 6
-#define MMUCFG_TWC 0x00008000
-#define MMUCFG_LRAT 0x00010000
-#define MMUCFG_RASIZE_MASK 0x00fe0000
-#define MMUCFG_RASIZE_SHIFT 17
-#define MMUCFG_LPIDSIZE_MASK 0x0f000000
-#define MMUCFG_LPIDSIZE_SHIFT 24
-
-/* TLBnCFG encoding */
-#define TLBnCFG_N_ENTRY 0x00000fff /* number of entries */
-#define TLBnCFG_HES 0x00002000 /* HW select supported */
-#define TLBnCFG_IPROT 0x00008000 /* IPROT supported */
-#define TLBnCFG_GTWE 0x00010000 /* Guest can write */
-#define TLBnCFG_IND 0x00020000 /* IND entries supported */
-#define TLBnCFG_PT 0x00040000 /* Can load from page table */
-#define TLBnCFG_MINSIZE 0x00f00000 /* Minimum Page Size (v1.0) */
-#define TLBnCFG_MINSIZE_SHIFT 20
-#define TLBnCFG_MAXSIZE 0x000f0000 /* Maximum Page Size (v1.0) */
-#define TLBnCFG_MAXSIZE_SHIFT 16
-#define TLBnCFG_ASSOC 0xff000000 /* Associativity */
-#define TLBnCFG_ASSOC_SHIFT 24
-
-/* TLBnPS encoding */
-#define TLBnPS_4K 0x00000004
-#define TLBnPS_8K 0x00000008
-#define TLBnPS_16K 0x00000010
-#define TLBnPS_32K 0x00000020
-#define TLBnPS_64K 0x00000040
-#define TLBnPS_128K 0x00000080
-#define TLBnPS_256K 0x00000100
-#define TLBnPS_512K 0x00000200
-#define TLBnPS_1M 0x00000400
-#define TLBnPS_2M 0x00000800
-#define TLBnPS_4M 0x00001000
-#define TLBnPS_8M 0x00002000
-#define TLBnPS_16M 0x00004000
-#define TLBnPS_32M 0x00008000
-#define TLBnPS_64M 0x00010000
-#define TLBnPS_128M 0x00020000
-#define TLBnPS_256M 0x00040000
-#define TLBnPS_512M 0x00080000
-#define TLBnPS_1G 0x00100000
-#define TLBnPS_2G 0x00200000
-#define TLBnPS_4G 0x00400000
-#define TLBnPS_8G 0x00800000
-#define TLBnPS_16G 0x01000000
-#define TLBnPS_32G 0x02000000
-#define TLBnPS_64G 0x04000000
-#define TLBnPS_128G 0x08000000
-#define TLBnPS_256G 0x10000000
-
-/* tlbilx action encoding */
-#define TLBILX_T_ALL 0
-#define TLBILX_T_TID 1
-#define TLBILX_T_FULLMATCH 3
-#define TLBILX_T_CLASS0 4
-#define TLBILX_T_CLASS1 5
-#define TLBILX_T_CLASS2 6
-#define TLBILX_T_CLASS3 7
-
-#ifndef __ASSEMBLY__
-#include <asm/bug.h>
-
-extern unsigned int tlbcam_index;
-
-typedef struct {
- unsigned int id;
- unsigned int active;
- unsigned long vdso_base;
-} mm_context_t;
-
-/* Page size definitions, common between 32 and 64-bit
- *
- * shift : is the "PAGE_SHIFT" value for that page size
- * penc : is the pte encoding mask
- *
- */
-struct mmu_psize_def
-{
- unsigned int shift; /* number of bits */
- unsigned int enc; /* PTE encoding */
- unsigned int ind; /* Corresponding indirect page size shift */
- unsigned int flags;
-#define MMU_PAGE_SIZE_DIRECT 0x1 /* Supported as a direct size */
-#define MMU_PAGE_SIZE_INDIRECT 0x2 /* Supported as an indirect size */
-};
-extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
-
-static inline int shift_to_mmu_psize(unsigned int shift)
-{
- int psize;
-
- for (psize = 0; psize < MMU_PAGE_COUNT; ++psize)
- if (mmu_psize_defs[psize].shift == shift)
- return psize;
- return -1;
-}
-
-static inline unsigned int mmu_psize_to_shift(unsigned int mmu_psize)
-{
- if (mmu_psize_defs[mmu_psize].shift)
- return mmu_psize_defs[mmu_psize].shift;
- BUG();
-}
-
-/* The page sizes use the same names as 64-bit hash but are
- * constants
- */
-#if defined(CONFIG_PPC_4K_PAGES)
-#define mmu_virtual_psize MMU_PAGE_4K
-#else
-#error Unsupported page size
-#endif
-
-extern int mmu_linear_psize;
-extern int mmu_vmemmap_psize;
-
-struct tlb_core_data {
- /*
- * Per-core spinlock for e6500 TLB handlers (no tlbsrx.)
- * Must be the first struct element.
- */
- u8 lock;
-
- /* For software way selection, as on Freescale TLB1 */
- u8 esel_next, esel_max, esel_first;
-};
-
-#ifdef CONFIG_PPC64
-extern unsigned long linear_map_top;
-extern int book3e_htw_mode;
-
-#define PPC_HTW_NONE 0
-#define PPC_HTW_IBM 1
-#define PPC_HTW_E6500 2
-
-/*
- * 64-bit booke platforms don't load the tlb in the tlb miss handler code.
- * HUGETLB_NEED_PRELOAD handles this - it causes huge_ptep_set_access_flags to
- * return 1, indicating that the tlb requires preloading.
- */
-#define HUGETLB_NEED_PRELOAD
-
-#define mmu_cleanup_all NULL
-
-#endif
-
-#endif /* !__ASSEMBLY__ */
-
-#endif /* _ASM_POWERPC_MMU_BOOK3E_H_ */
diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h
index 13ea441ac531..2b396de45e9e 100644
--- a/arch/powerpc/include/asm/mmu.h
+++ b/arch/powerpc/include/asm/mmu.h
@@ -326,18 +326,8 @@ static inline void mmu_early_init_devtree(void) { }
#if defined(CONFIG_PPC_STD_MMU_32)
/* 32-bit classic hash table MMU */
#include <asm/book3s/32/mmu-hash.h>
-#elif defined(CONFIG_40x)
-/* 40x-style software loaded TLB */
-# include <asm/mmu-40x.h>
-#elif defined(CONFIG_44x)
-/* 44x-style software loaded TLB */
-# include <asm/mmu-44x.h>
-#elif defined(CONFIG_PPC_BOOK3E_MMU)
-/* Freescale Book-E software loaded TLB or Book-3e (ISA 2.06+) MMU */
-# include <asm/mmu-book3e.h>
-#elif defined (CONFIG_PPC_8xx)
-/* Motorola/Freescale 8xx software loaded TLB */
-# include <asm/mmu-8xx.h>
+#elif defined(CONFIG_PPC_MMU_NOHASH)
+#include <asm/nohash/mmu.h>
#endif
#endif /* __KERNEL__ */
diff --git a/arch/powerpc/include/asm/nohash/32/mmu-40x.h b/arch/powerpc/include/asm/nohash/32/mmu-40x.h
new file mode 100644
index 000000000000..74f4edb5916e
--- /dev/null
+++ b/arch/powerpc/include/asm/nohash/32/mmu-40x.h
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_POWERPC_MMU_40X_H_
+#define _ASM_POWERPC_MMU_40X_H_
+
+/*
+ * PPC40x support
+ */
+
+#define PPC40X_TLB_SIZE 64
+
+/*
+ * TLB entries are defined by a "high" tag portion and a "low" data
+ * portion. On all architectures, the data portion is 32-bits.
+ *
+ * TLB entries are managed entirely under software control by reading,
+ * writing, and searchoing using the 4xx-specific tlbre, tlbwr, and tlbsx
+ * instructions.
+ */
+
+#define TLB_LO 1
+#define TLB_HI 0
+
+#define TLB_DATA TLB_LO
+#define TLB_TAG TLB_HI
+
+/* Tag portion */
+
+#define TLB_EPN_MASK 0xFFFFFC00 /* Effective Page Number */
+#define TLB_PAGESZ_MASK 0x00000380
+#define TLB_PAGESZ(x) (((x) & 0x7) << 7)
+#define PAGESZ_1K 0
+#define PAGESZ_4K 1
+#define PAGESZ_16K 2
+#define PAGESZ_64K 3
+#define PAGESZ_256K 4
+#define PAGESZ_1M 5
+#define PAGESZ_4M 6
+#define PAGESZ_16M 7
+#define TLB_VALID 0x00000040 /* Entry is valid */
+
+/* Data portion */
+
+#define TLB_RPN_MASK 0xFFFFFC00 /* Real Page Number */
+#define TLB_PERM_MASK 0x00000300
+#define TLB_EX 0x00000200 /* Instruction execution allowed */
+#define TLB_WR 0x00000100 /* Writes permitted */
+#define TLB_ZSEL_MASK 0x000000F0
+#define TLB_ZSEL(x) (((x) & 0xF) << 4)
+#define TLB_ATTR_MASK 0x0000000F
+#define TLB_W 0x00000008 /* Caching is write-through */
+#define TLB_I 0x00000004 /* Caching is inhibited */
+#define TLB_M 0x00000002 /* Memory is coherent */
+#define TLB_G 0x00000001 /* Memory is guarded from prefetch */
+
+#ifndef __ASSEMBLY__
+
+typedef struct {
+ unsigned int id;
+ unsigned int active;
+ unsigned long vdso_base;
+} mm_context_t;
+
+#endif /* !__ASSEMBLY__ */
+
+#define mmu_virtual_psize MMU_PAGE_4K
+#define mmu_linear_psize MMU_PAGE_256M
+
+#endif /* _ASM_POWERPC_MMU_40X_H_ */
diff --git a/arch/powerpc/include/asm/nohash/32/mmu-44x.h b/arch/powerpc/include/asm/nohash/32/mmu-44x.h
new file mode 100644
index 000000000000..295b3dbb2698
--- /dev/null
+++ b/arch/powerpc/include/asm/nohash/32/mmu-44x.h
@@ -0,0 +1,153 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_POWERPC_MMU_44X_H_
+#define _ASM_POWERPC_MMU_44X_H_
+/*
+ * PPC440 support
+ */
+
+#include <asm/asm-const.h>
+
+#define PPC44x_MMUCR_TID 0x000000ff
+#define PPC44x_MMUCR_STS 0x00010000
+
+#define PPC44x_TLB_PAGEID 0
+#define PPC44x_TLB_XLAT 1
+#define PPC44x_TLB_ATTRIB 2
+
+/* Page identification fields */
+#define PPC44x_TLB_EPN_MASK 0xfffffc00 /* Effective Page Number */
+#define PPC44x_TLB_VALID 0x00000200 /* Valid flag */
+#define PPC44x_TLB_TS 0x00000100 /* Translation address space */
+#define PPC44x_TLB_1K 0x00000000 /* Page sizes */
+#define PPC44x_TLB_4K 0x00000010
+#define PPC44x_TLB_16K 0x00000020
+#define PPC44x_TLB_64K 0x00000030
+#define PPC44x_TLB_256K 0x00000040
+#define PPC44x_TLB_1M 0x00000050
+#define PPC44x_TLB_16M 0x00000070
+#define PPC44x_TLB_256M 0x00000090
+
+/* Translation fields */
+#define PPC44x_TLB_RPN_MASK 0xfffffc00 /* Real Page Number */
+#define PPC44x_TLB_ERPN_MASK 0x0000000f
+
+/* Storage attribute and access control fields */
+#define PPC44x_TLB_ATTR_MASK 0x0000ff80
+#define PPC44x_TLB_U0 0x00008000 /* User 0 */
+#define PPC44x_TLB_U1 0x00004000 /* User 1 */
+#define PPC44x_TLB_U2 0x00002000 /* User 2 */
+#define PPC44x_TLB_U3 0x00001000 /* User 3 */
+#define PPC44x_TLB_W 0x00000800 /* Caching is write-through */
+#define PPC44x_TLB_I 0x00000400 /* Caching is inhibited */
+#define PPC44x_TLB_M 0x00000200 /* Memory is coherent */
+#define PPC44x_TLB_G 0x00000100 /* Memory is guarded */
+#define PPC44x_TLB_E 0x00000080 /* Memory is little endian */
+
+#define PPC44x_TLB_PERM_MASK 0x0000003f
+#define PPC44x_TLB_UX 0x00000020 /* User execution */
+#define PPC44x_TLB_UW 0x00000010 /* User write */
+#define PPC44x_TLB_UR 0x00000008 /* User read */
+#define PPC44x_TLB_SX 0x00000004 /* Super execution */
+#define PPC44x_TLB_SW 0x00000002 /* Super write */
+#define PPC44x_TLB_SR 0x00000001 /* Super read */
+
+/* Number of TLB entries */
+#define PPC44x_TLB_SIZE 64
+
+/* 47x bits */
+#define PPC47x_MMUCR_TID 0x0000ffff
+#define PPC47x_MMUCR_STS 0x00010000
+
+/* Page identification fields */
+#define PPC47x_TLB0_EPN_MASK 0xfffff000 /* Effective Page Number */
+#define PPC47x_TLB0_VALID 0x00000800 /* Valid flag */
+#define PPC47x_TLB0_TS 0x00000400 /* Translation address space */
+#define PPC47x_TLB0_4K 0x00000000
+#define PPC47x_TLB0_16K 0x00000010
+#define PPC47x_TLB0_64K 0x00000030
+#define PPC47x_TLB0_1M 0x00000070
+#define PPC47x_TLB0_16M 0x000000f0
+#define PPC47x_TLB0_256M 0x000001f0
+#define PPC47x_TLB0_1G 0x000003f0
+#define PPC47x_TLB0_BOLTED_R 0x00000008 /* tlbre only */
+
+/* Translation fields */
+#define PPC47x_TLB1_RPN_MASK 0xfffff000 /* Real Page Number */
+#define PPC47x_TLB1_ERPN_MASK 0x000003ff
+
+/* Storage attribute and access control fields */
+#define PPC47x_TLB2_ATTR_MASK 0x0003ff80
+#define PPC47x_TLB2_IL1I 0x00020000 /* Memory is guarded */
+#define PPC47x_TLB2_IL1D 0x00010000 /* Memory is guarded */
+#define PPC47x_TLB2_U0 0x00008000 /* User 0 */
+#define PPC47x_TLB2_U1 0x00004000 /* User 1 */
+#define PPC47x_TLB2_U2 0x00002000 /* User 2 */
+#define PPC47x_TLB2_U3 0x00001000 /* User 3 */
+#define PPC47x_TLB2_W 0x00000800 /* Caching is write-through */
+#define PPC47x_TLB2_I 0x00000400 /* Caching is inhibited */
+#define PPC47x_TLB2_M 0x00000200 /* Memory is coherent */
+#define PPC47x_TLB2_G 0x00000100 /* Memory is guarded */
+#define PPC47x_TLB2_E 0x00000080 /* Memory is little endian */
+#define PPC47x_TLB2_PERM_MASK 0x0000003f
+#define PPC47x_TLB2_UX 0x00000020 /* User execution */
+#define PPC47x_TLB2_UW 0x00000010 /* User write */
+#define PPC47x_TLB2_UR 0x00000008 /* User read */
+#define PPC47x_TLB2_SX 0x00000004 /* Super execution */
+#define PPC47x_TLB2_SW 0x00000002 /* Super write */
+#define PPC47x_TLB2_SR 0x00000001 /* Super read */
+#define PPC47x_TLB2_U_RWX (PPC47x_TLB2_UX|PPC47x_TLB2_UW|PPC47x_TLB2_UR)
+#define PPC47x_TLB2_S_RWX (PPC47x_TLB2_SX|PPC47x_TLB2_SW|PPC47x_TLB2_SR)
+#define PPC47x_TLB2_S_RW (PPC47x_TLB2_SW | PPC47x_TLB2_SR)
+#define PPC47x_TLB2_IMG (PPC47x_TLB2_I | PPC47x_TLB2_M | PPC47x_TLB2_G)
+
+#ifndef __ASSEMBLY__
+
+extern unsigned int tlb_44x_hwater;
+extern unsigned int tlb_44x_index;
+
+typedef struct {
+ unsigned int id;
+ unsigned int active;
+ unsigned long vdso_base;
+} mm_context_t;
+
+#endif /* !__ASSEMBLY__ */
+
+#ifndef CONFIG_PPC_EARLY_DEBUG_44x
+#define PPC44x_EARLY_TLBS 1
+#else
+#define PPC44x_EARLY_TLBS 2
+#define PPC44x_EARLY_DEBUG_VIRTADDR (ASM_CONST(0xf0000000) \
+ | (ASM_CONST(CONFIG_PPC_EARLY_DEBUG_44x_PHYSLOW) & 0xffff))
+#endif
+
+/* Size of the TLBs used for pinning in lowmem */
+#define PPC_PIN_SIZE (1 << 28) /* 256M */
+
+#if defined(CONFIG_PPC_4K_PAGES)
+#define PPC44x_TLBE_SIZE PPC44x_TLB_4K
+#define PPC47x_TLBE_SIZE PPC47x_TLB0_4K
+#define mmu_virtual_psize MMU_PAGE_4K
+#elif defined(CONFIG_PPC_16K_PAGES)
+#define PPC44x_TLBE_SIZE PPC44x_TLB_16K
+#define PPC47x_TLBE_SIZE PPC47x_TLB0_16K
+#define mmu_virtual_psize MMU_PAGE_16K
+#elif defined(CONFIG_PPC_64K_PAGES)
+#define PPC44x_TLBE_SIZE PPC44x_TLB_64K
+#define PPC47x_TLBE_SIZE PPC47x_TLB0_64K
+#define mmu_virtual_psize MMU_PAGE_64K
+#elif defined(CONFIG_PPC_256K_PAGES)
+#define PPC44x_TLBE_SIZE PPC44x_TLB_256K
+#define mmu_virtual_psize MMU_PAGE_256K
+#else
+#error "Unsupported PAGE_SIZE"
+#endif
+
+#define mmu_linear_psize MMU_PAGE_256M
+
+#define PPC44x_PGD_OFF_SHIFT (32 - PGDIR_SHIFT + PGD_T_LOG2)
+#define PPC44x_PGD_OFF_MASK_BIT (PGDIR_SHIFT - PGD_T_LOG2)
+#define PPC44x_PTE_ADD_SHIFT (32 - PGDIR_SHIFT + PTE_SHIFT + PTE_T_LOG2)
+#define PPC44x_PTE_ADD_MASK_BIT (32 - PTE_T_LOG2 - PTE_SHIFT)
+
+#endif /* _ASM_POWERPC_MMU_44X_H_ */
diff --git a/arch/powerpc/include/asm/nohash/32/mmu-8xx.h b/arch/powerpc/include/asm/nohash/32/mmu-8xx.h
new file mode 100644
index 000000000000..193f53116c7a
--- /dev/null
+++ b/arch/powerpc/include/asm/nohash/32/mmu-8xx.h
@@ -0,0 +1,244 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_POWERPC_MMU_8XX_H_
+#define _ASM_POWERPC_MMU_8XX_H_
+/*
+ * PPC8xx support
+ */
+
+/* Control/status registers for the MPC8xx.
+ * A write operation to these registers causes serialized access.
+ * During software tablewalk, the registers used perform mask/shift-add
+ * operations when written/read. A TLB entry is created when the Mx_RPN
+ * is written, and the contents of several registers are used to
+ * create the entry.
+ */
+#define SPRN_MI_CTR 784 /* Instruction TLB control register */
+#define MI_GPM 0x80000000 /* Set domain manager mode */
+#define MI_PPM 0x40000000 /* Set subpage protection */
+#define MI_CIDEF 0x20000000 /* Set cache inhibit when MMU dis */
+#define MI_RSV4I 0x08000000 /* Reserve 4 TLB entries */
+#define MI_PPCS 0x02000000 /* Use MI_RPN prob/priv state */
+#define MI_IDXMASK 0x00001f00 /* TLB index to be loaded */
+#define MI_RESETVAL 0x00000000 /* Value of register at reset */
+
+/* These are the Ks and Kp from the PowerPC books. For proper operation,
+ * Ks = 0, Kp = 1.
+ */
+#define SPRN_MI_AP 786
+#define MI_Ks 0x80000000 /* Should not be set */
+#define MI_Kp 0x40000000 /* Should always be set */
+
+/*
+ * All pages' PP data bits are set to either 001 or 011 by copying _PAGE_EXEC
+ * into bit 21 in the ITLBmiss handler (bit 21 is the middle bit), which means
+ * respectively NA for All or X for Supervisor and no access for User.
+ * Then we use the APG to say whether accesses are according to Page rules or
+ * "all Supervisor" rules (Access to all)
+ * Therefore, we define 2 APG groups. lsb is _PMD_USER
+ * 0 => No user => 01 (all accesses performed according to page definition)
+ * 1 => User => 00 (all accesses performed as supervisor iaw page definition)
+ * We define all 16 groups so that all other bits of APG can take any value
+ */
+#define MI_APG_INIT 0x44444444
+
+/* The effective page number register. When read, contains the information
+ * about the last instruction TLB miss. When MI_RPN is written, bits in
+ * this register are used to create the TLB entry.
+ */
+#define SPRN_MI_EPN 787
+#define MI_EPNMASK 0xfffff000 /* Effective page number for entry */
+#define MI_EVALID 0x00000200 /* Entry is valid */
+#define MI_ASIDMASK 0x0000000f /* ASID match value */
+ /* Reset value is undefined */
+
+/* A "level 1" or "segment" or whatever you want to call it register.
+ * For the instruction TLB, it contains bits that get loaded into the
+ * TLB entry when the MI_RPN is written.
+ */
+#define SPRN_MI_TWC 789
+#define MI_APG 0x000001e0 /* Access protection group (0) */
+#define MI_GUARDED 0x00000010 /* Guarded storage */
+#define MI_PSMASK 0x0000000c /* Mask of page size bits */
+#define MI_PS8MEG 0x0000000c /* 8M page size */
+#define MI_PS512K 0x00000004 /* 512K page size */
+#define MI_PS4K_16K 0x00000000 /* 4K or 16K page size */
+#define MI_SVALID 0x00000001 /* Segment entry is valid */
+ /* Reset value is undefined */
+
+/* Real page number. Defined by the pte. Writing this register
+ * causes a TLB entry to be created for the instruction TLB, using
+ * additional information from the MI_EPN, and MI_TWC registers.
+ */
+#define SPRN_MI_RPN 790
+#define MI_SPS16K 0x00000008 /* Small page size (0 = 4k, 1 = 16k) */
+
+/* Define an RPN value for mapping kernel memory to large virtual
+ * pages for boot initialization. This has real page number of 0,
+ * large page size, shared page, cache enabled, and valid.
+ * Also mark all subpages valid and write access.
+ */
+#define MI_BOOTINIT 0x000001fd
+
+#define SPRN_MD_CTR 792 /* Data TLB control register */
+#define MD_GPM 0x80000000 /* Set domain manager mode */
+#define MD_PPM 0x40000000 /* Set subpage protection */
+#define MD_CIDEF 0x20000000 /* Set cache inhibit when MMU dis */
+#define MD_WTDEF 0x10000000 /* Set writethrough when MMU dis */
+#define MD_RSV4I 0x08000000 /* Reserve 4 TLB entries */
+#define MD_TWAM 0x04000000 /* Use 4K page hardware assist */
+#define MD_PPCS 0x02000000 /* Use MI_RPN prob/priv state */
+#define MD_IDXMASK 0x00001f00 /* TLB index to be loaded */
+#define MD_RESETVAL 0x04000000 /* Value of register at reset */
+
+#define SPRN_M_CASID 793 /* Address space ID (context) to match */
+#define MC_ASIDMASK 0x0000000f /* Bits used for ASID value */
+
+
+/* These are the Ks and Kp from the PowerPC books. For proper operation,
+ * Ks = 0, Kp = 1.
+ */
+#define SPRN_MD_AP 794
+#define MD_Ks 0x80000000 /* Should not be set */
+#define MD_Kp 0x40000000 /* Should always be set */
+
+/*
+ * All pages' PP data bits are set to either 000 or 011 or 001, which means
+ * respectively RW for Supervisor and no access for User, or RO for
+ * Supervisor and no access for user and NA for ALL.
+ * Then we use the APG to say whether accesses are according to Page rules or
+ * "all Supervisor" rules (Access to all)
+ * Therefore, we define 2 APG groups. lsb is _PMD_USER
+ * 0 => No user => 01 (all accesses performed according to page definition)
+ * 1 => User => 00 (all accesses performed as supervisor iaw page definition)
+ * We define all 16 groups so that all other bits of APG can take any value
+ */
+#define MD_APG_INIT 0x44444444
+
+/* The effective page number register. When read, contains the information
+ * about the last instruction TLB miss. When MD_RPN is written, bits in
+ * this register are used to create the TLB entry.
+ */
+#define SPRN_MD_EPN 795
+#define MD_EPNMASK 0xfffff000 /* Effective page number for entry */
+#define MD_EVALID 0x00000200 /* Entry is valid */
+#define MD_ASIDMASK 0x0000000f /* ASID match value */
+ /* Reset value is undefined */
+
+/* The pointer to the base address of the first level page table.
+ * During a software tablewalk, reading this register provides the address
+ * of the entry associated with MD_EPN.
+ */
+#define SPRN_M_TWB 796
+#define M_L1TB 0xfffff000 /* Level 1 table base address */
+#define M_L1INDX 0x00000ffc /* Level 1 index, when read */
+ /* Reset value is undefined */
+
+/* A "level 1" or "segment" or whatever you want to call it register.
+ * For the data TLB, it contains bits that get loaded into the TLB entry
+ * when the MD_RPN is written. It is also provides the hardware assist
+ * for finding the PTE address during software tablewalk.
+ */
+#define SPRN_MD_TWC 797
+#define MD_L2TB 0xfffff000 /* Level 2 table base address */
+#define MD_L2INDX 0xfffffe00 /* Level 2 index (*pte), when read */
+#define MD_APG 0x000001e0 /* Access protection group (0) */
+#define MD_GUARDED 0x00000010 /* Guarded storage */
+#define MD_PSMASK 0x0000000c /* Mask of page size bits */
+#define MD_PS8MEG 0x0000000c /* 8M page size */
+#define MD_PS512K 0x00000004 /* 512K page size */
+#define MD_PS4K_16K 0x00000000 /* 4K or 16K page size */
+#define MD_WT 0x00000002 /* Use writethrough page attribute */
+#define MD_SVALID 0x00000001 /* Segment entry is valid */
+ /* Reset value is undefined */
+
+
+/* Real page number. Defined by the pte. Writing this register
+ * causes a TLB entry to be created for the data TLB, using
+ * additional information from the MD_EPN, and MD_TWC registers.
+ */
+#define SPRN_MD_RPN 798
+#define MD_SPS16K 0x00000008 /* Small page size (0 = 4k, 1 = 16k) */
+
+/* This is a temporary storage register that could be used to save
+ * a processor working register during a tablewalk.
+ */
+#define SPRN_M_TW 799
+
+#ifdef CONFIG_PPC_MM_SLICES
+#include <asm/nohash/32/slice.h>
+#define SLICE_ARRAY_SIZE (1 << (32 - SLICE_LOW_SHIFT - 1))
+#endif
+
+#ifndef __ASSEMBLY__
+struct slice_mask {
+ u64 low_slices;
+ DECLARE_BITMAP(high_slices, 0);
+};
+
+typedef struct {
+ unsigned int id;
+ unsigned int active;
+ unsigned long vdso_base;
+#ifdef CONFIG_PPC_MM_SLICES
+ u16 user_psize; /* page size index */
+ unsigned char low_slices_psize[SLICE_ARRAY_SIZE];
+ unsigned char high_slices_psize[0];
+ unsigned long slb_addr_limit;
+ struct slice_mask mask_base_psize; /* 4k or 16k */
+# ifdef CONFIG_HUGETLB_PAGE
+ struct slice_mask mask_512k;
+ struct slice_mask mask_8m;
+# endif
+#endif
+} mm_context_t;
+
+#define PHYS_IMMR_BASE (mfspr(SPRN_IMMR) & 0xfff80000)
+#define VIRT_IMMR_BASE (__fix_to_virt(FIX_IMMR_BASE))
+
+/* Page size definitions, common between 32 and 64-bit
+ *
+ * shift : is the "PAGE_SHIFT" value for that page size
+ * penc : is the pte encoding mask
+ *
+ */
+struct mmu_psize_def {
+ unsigned int shift; /* number of bits */
+ unsigned int enc; /* PTE encoding */
+ unsigned int ind; /* Corresponding indirect page size shift */
+ unsigned int flags;
+#define MMU_PAGE_SIZE_DIRECT 0x1 /* Supported as a direct size */
+#define MMU_PAGE_SIZE_INDIRECT 0x2 /* Supported as an indirect size */
+};
+
+extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
+
+static inline int shift_to_mmu_psize(unsigned int shift)
+{
+ int psize;
+
+ for (psize = 0; psize < MMU_PAGE_COUNT; ++psize)
+ if (mmu_psize_defs[psize].shift == shift)
+ return psize;
+ return -1;
+}
+
+static inline unsigned int mmu_psize_to_shift(unsigned int mmu_psize)
+{
+ if (mmu_psize_defs[mmu_psize].shift)
+ return mmu_psize_defs[mmu_psize].shift;
+ BUG();
+}
+
+#endif /* !__ASSEMBLY__ */
+
+#if defined(CONFIG_PPC_4K_PAGES)
+#define mmu_virtual_psize MMU_PAGE_4K
+#elif defined(CONFIG_PPC_16K_PAGES)
+#define mmu_virtual_psize MMU_PAGE_16K
+#else
+#error "Unsupported PAGE_SIZE"
+#endif
+
+#define mmu_linear_psize MMU_PAGE_8M
+
+#endif /* _ASM_POWERPC_MMU_8XX_H_ */
diff --git a/arch/powerpc/include/asm/nohash/32/mmu.h b/arch/powerpc/include/asm/nohash/32/mmu.h
new file mode 100644
index 000000000000..f61f933a4cd8
--- /dev/null
+++ b/arch/powerpc/include/asm/nohash/32/mmu.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_POWERPC_NOHASH_32_MMU_H_
+#define _ASM_POWERPC_NOHASH_32_MMU_H_
+
+#if defined(CONFIG_40x)
+/* 40x-style software loaded TLB */
+#include <asm/nohash/32/mmu-40x.h>
+#elif defined(CONFIG_44x)
+/* 44x-style software loaded TLB */
+#include <asm/nohash/32/mmu-44x.h>
+#elif defined(CONFIG_PPC_BOOK3E_MMU)
+/* Freescale Book-E software loaded TLB or Book-3e (ISA 2.06+) MMU */
+#include <asm/nohash/mmu-book3e.h>
+#elif defined (CONFIG_PPC_8xx)
+/* Motorola/Freescale 8xx software loaded TLB */
+#include <asm/nohash/32/mmu-8xx.h>
+#endif
+
+#ifndef __ASSEMBLY__
+typedef struct page *pgtable_t;
+#endif
+
+#endif /* _ASM_POWERPC_NOHASH_32_MMU_H_ */
diff --git a/arch/powerpc/include/asm/nohash/64/mmu.h b/arch/powerpc/include/asm/nohash/64/mmu.h
new file mode 100644
index 000000000000..e6585480dfc4
--- /dev/null
+++ b/arch/powerpc/include/asm/nohash/64/mmu.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_POWERPC_NOHASH_64_MMU_H_
+#define _ASM_POWERPC_NOHASH_64_MMU_H_
+
+/* Freescale Book-E software loaded TLB or Book-3e (ISA 2.06+) MMU */
+#include <asm/nohash/mmu-book3e.h>
+
+#ifndef __ASSEMBLY__
+typedef struct page *pgtable_t;
+#endif
+
+#endif /* _ASM_POWERPC_NOHASH_64_MMU_H_ */
diff --git a/arch/powerpc/include/asm/nohash/mmu-book3e.h b/arch/powerpc/include/asm/nohash/mmu-book3e.h
new file mode 100644
index 000000000000..e20072972e35
--- /dev/null
+++ b/arch/powerpc/include/asm/nohash/mmu-book3e.h
@@ -0,0 +1,313 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_POWERPC_MMU_BOOK3E_H_
+#define _ASM_POWERPC_MMU_BOOK3E_H_
+/*
+ * Freescale Book-E/Book-3e (ISA 2.06+) MMU support
+ */
+
+/* Book-3e defined page sizes */
+#define BOOK3E_PAGESZ_1K 0
+#define BOOK3E_PAGESZ_2K 1
+#define BOOK3E_PAGESZ_4K 2
+#define BOOK3E_PAGESZ_8K 3
+#define BOOK3E_PAGESZ_16K 4
+#define BOOK3E_PAGESZ_32K 5
+#define BOOK3E_PAGESZ_64K 6
+#define BOOK3E_PAGESZ_128K 7
+#define BOOK3E_PAGESZ_256K 8
+#define BOOK3E_PAGESZ_512K 9
+#define BOOK3E_PAGESZ_1M 10
+#define BOOK3E_PAGESZ_2M 11
+#define BOOK3E_PAGESZ_4M 12
+#define BOOK3E_PAGESZ_8M 13
+#define BOOK3E_PAGESZ_16M 14
+#define BOOK3E_PAGESZ_32M 15
+#define BOOK3E_PAGESZ_64M 16
+#define BOOK3E_PAGESZ_128M 17
+#define BOOK3E_PAGESZ_256M 18
+#define BOOK3E_PAGESZ_512M 19
+#define BOOK3E_PAGESZ_1GB 20
+#define BOOK3E_PAGESZ_2GB 21
+#define BOOK3E_PAGESZ_4GB 22
+#define BOOK3E_PAGESZ_8GB 23
+#define BOOK3E_PAGESZ_16GB 24
+#define BOOK3E_PAGESZ_32GB 25
+#define BOOK3E_PAGESZ_64GB 26
+#define BOOK3E_PAGESZ_128GB 27
+#define BOOK3E_PAGESZ_256GB 28
+#define BOOK3E_PAGESZ_512GB 29
+#define BOOK3E_PAGESZ_1TB 30
+#define BOOK3E_PAGESZ_2TB 31
+
+/* MAS registers bit definitions */
+
+#define MAS0_TLBSEL_MASK 0x30000000
+#define MAS0_TLBSEL_SHIFT 28
+#define MAS0_TLBSEL(x) (((x) << MAS0_TLBSEL_SHIFT) & MAS0_TLBSEL_MASK)
+#define MAS0_GET_TLBSEL(mas0) (((mas0) & MAS0_TLBSEL_MASK) >> \
+ MAS0_TLBSEL_SHIFT)
+#define MAS0_ESEL_MASK 0x0FFF0000
+#define MAS0_ESEL_SHIFT 16
+#define MAS0_ESEL(x) (((x) << MAS0_ESEL_SHIFT) & MAS0_ESEL_MASK)
+#define MAS0_NV(x) ((x) & 0x00000FFF)
+#define MAS0_HES 0x00004000
+#define MAS0_WQ_ALLWAYS 0x00000000
+#define MAS0_WQ_COND 0x00001000
+#define MAS0_WQ_CLR_RSRV 0x00002000
+
+#define MAS1_VALID 0x80000000
+#define MAS1_IPROT 0x40000000
+#define MAS1_TID(x) (((x) << 16) & 0x3FFF0000)
+#define MAS1_IND 0x00002000
+#define MAS1_TS 0x00001000
+#define MAS1_TSIZE_MASK 0x00000f80
+#define MAS1_TSIZE_SHIFT 7
+#define MAS1_TSIZE(x) (((x) << MAS1_TSIZE_SHIFT) & MAS1_TSIZE_MASK)
+#define MAS1_GET_TSIZE(mas1) (((mas1) & MAS1_TSIZE_MASK) >> MAS1_TSIZE_SHIFT)
+
+#define MAS2_EPN (~0xFFFUL)
+#define MAS2_X0 0x00000040
+#define MAS2_X1 0x00000020
+#define MAS2_W 0x00000010
+#define MAS2_I 0x00000008
+#define MAS2_M 0x00000004
+#define MAS2_G 0x00000002
+#define MAS2_E 0x00000001
+#define MAS2_WIMGE_MASK 0x0000001f
+#define MAS2_EPN_MASK(size) (~0 << (size + 10))
+#define MAS2_VAL(addr, size, flags) ((addr) & MAS2_EPN_MASK(size) | (flags))
+
+#define MAS3_RPN 0xFFFFF000
+#define MAS3_U0 0x00000200
+#define MAS3_U1 0x00000100
+#define MAS3_U2 0x00000080
+#define MAS3_U3 0x00000040
+#define MAS3_UX 0x00000020
+#define MAS3_SX 0x00000010
+#define MAS3_UW 0x00000008
+#define MAS3_SW 0x00000004
+#define MAS3_UR 0x00000002
+#define MAS3_SR 0x00000001
+#define MAS3_BAP_MASK 0x0000003f
+#define MAS3_SPSIZE 0x0000003e
+#define MAS3_SPSIZE_SHIFT 1
+
+#define MAS4_TLBSEL_MASK MAS0_TLBSEL_MASK
+#define MAS4_TLBSELD(x) MAS0_TLBSEL(x)
+#define MAS4_INDD 0x00008000 /* Default IND */
+#define MAS4_TSIZED(x) MAS1_TSIZE(x)
+#define MAS4_X0D 0x00000040
+#define MAS4_X1D 0x00000020
+#define MAS4_WD 0x00000010
+#define MAS4_ID 0x00000008
+#define MAS4_MD 0x00000004
+#define MAS4_GD 0x00000002
+#define MAS4_ED 0x00000001
+#define MAS4_WIMGED_MASK 0x0000001f /* Default WIMGE */
+#define MAS4_WIMGED_SHIFT 0
+#define MAS4_VLED MAS4_X1D /* Default VLE */
+#define MAS4_ACMD 0x000000c0 /* Default ACM */
+#define MAS4_ACMD_SHIFT 6
+#define MAS4_TSIZED_MASK 0x00000f80 /* Default TSIZE */
+#define MAS4_TSIZED_SHIFT 7
+
+#define MAS5_SGS 0x80000000
+
+#define MAS6_SPID0 0x3FFF0000
+#define MAS6_SPID1 0x00007FFE
+#define MAS6_ISIZE(x) MAS1_TSIZE(x)
+#define MAS6_SAS 0x00000001
+#define MAS6_SPID MAS6_SPID0
+#define MAS6_SIND 0x00000002 /* Indirect page */
+#define MAS6_SIND_SHIFT 1
+#define MAS6_SPID_MASK 0x3fff0000
+#define MAS6_SPID_SHIFT 16
+#define MAS6_ISIZE_MASK 0x00000f80
+#define MAS6_ISIZE_SHIFT 7
+
+#define MAS7_RPN 0xFFFFFFFF
+
+#define MAS8_TGS 0x80000000 /* Guest space */
+#define MAS8_VF 0x40000000 /* Virtualization Fault */
+#define MAS8_TLPID 0x000000ff
+
+/* Bit definitions for MMUCFG */
+#define MMUCFG_MAVN 0x00000003 /* MMU Architecture Version Number */
+#define MMUCFG_MAVN_V1 0x00000000 /* v1.0 */
+#define MMUCFG_MAVN_V2 0x00000001 /* v2.0 */
+#define MMUCFG_NTLBS 0x0000000c /* Number of TLBs */
+#define MMUCFG_PIDSIZE 0x000007c0 /* PID Reg Size */
+#define MMUCFG_TWC 0x00008000 /* TLB Write Conditional (v2.0) */
+#define MMUCFG_LRAT 0x00010000 /* LRAT Supported (v2.0) */
+#define MMUCFG_RASIZE 0x00fe0000 /* Real Addr Size */
+#define MMUCFG_LPIDSIZE 0x0f000000 /* LPID Reg Size */
+
+/* Bit definitions for MMUCSR0 */
+#define MMUCSR0_TLB1FI 0x00000002 /* TLB1 Flash invalidate */
+#define MMUCSR0_TLB0FI 0x00000004 /* TLB0 Flash invalidate */
+#define MMUCSR0_TLB2FI 0x00000040 /* TLB2 Flash invalidate */
+#define MMUCSR0_TLB3FI 0x00000020 /* TLB3 Flash invalidate */
+#define MMUCSR0_TLBFI (MMUCSR0_TLB0FI | MMUCSR0_TLB1FI | \
+ MMUCSR0_TLB2FI | MMUCSR0_TLB3FI)
+#define MMUCSR0_TLB0PS 0x00000780 /* TLB0 Page Size */
+#define MMUCSR0_TLB1PS 0x00007800 /* TLB1 Page Size */
+#define MMUCSR0_TLB2PS 0x00078000 /* TLB2 Page Size */
+#define MMUCSR0_TLB3PS 0x00780000 /* TLB3 Page Size */
+
+/* MMUCFG bits */
+#define MMUCFG_MAVN_NASK 0x00000003
+#define MMUCFG_MAVN_V1_0 0x00000000
+#define MMUCFG_MAVN_V2_0 0x00000001
+#define MMUCFG_NTLB_MASK 0x0000000c
+#define MMUCFG_NTLB_SHIFT 2
+#define MMUCFG_PIDSIZE_MASK 0x000007c0
+#define MMUCFG_PIDSIZE_SHIFT 6
+#define MMUCFG_TWC 0x00008000
+#define MMUCFG_LRAT 0x00010000
+#define MMUCFG_RASIZE_MASK 0x00fe0000
+#define MMUCFG_RASIZE_SHIFT 17
+#define MMUCFG_LPIDSIZE_MASK 0x0f000000
+#define MMUCFG_LPIDSIZE_SHIFT 24
+
+/* TLBnCFG encoding */
+#define TLBnCFG_N_ENTRY 0x00000fff /* number of entries */
+#define TLBnCFG_HES 0x00002000 /* HW select supported */
+#define TLBnCFG_IPROT 0x00008000 /* IPROT supported */
+#define TLBnCFG_GTWE 0x00010000 /* Guest can write */
+#define TLBnCFG_IND 0x00020000 /* IND entries supported */
+#define TLBnCFG_PT 0x00040000 /* Can load from page table */
+#define TLBnCFG_MINSIZE 0x00f00000 /* Minimum Page Size (v1.0) */
+#define TLBnCFG_MINSIZE_SHIFT 20
+#define TLBnCFG_MAXSIZE 0x000f0000 /* Maximum Page Size (v1.0) */
+#define TLBnCFG_MAXSIZE_SHIFT 16
+#define TLBnCFG_ASSOC 0xff000000 /* Associativity */
+#define TLBnCFG_ASSOC_SHIFT 24
+
+/* TLBnPS encoding */
+#define TLBnPS_4K 0x00000004
+#define TLBnPS_8K 0x00000008
+#define TLBnPS_16K 0x00000010
+#define TLBnPS_32K 0x00000020
+#define TLBnPS_64K 0x00000040
+#define TLBnPS_128K 0x00000080
+#define TLBnPS_256K 0x00000100
+#define TLBnPS_512K 0x00000200
+#define TLBnPS_1M 0x00000400
+#define TLBnPS_2M 0x00000800
+#define TLBnPS_4M 0x00001000
+#define TLBnPS_8M 0x00002000
+#define TLBnPS_16M 0x00004000
+#define TLBnPS_32M 0x00008000
+#define TLBnPS_64M 0x00010000
+#define TLBnPS_128M 0x00020000
+#define TLBnPS_256M 0x00040000
+#define TLBnPS_512M 0x00080000
+#define TLBnPS_1G 0x00100000
+#define TLBnPS_2G 0x00200000
+#define TLBnPS_4G 0x00400000
+#define TLBnPS_8G 0x00800000
+#define TLBnPS_16G 0x01000000
+#define TLBnPS_32G 0x02000000
+#define TLBnPS_64G 0x04000000
+#define TLBnPS_128G 0x08000000
+#define TLBnPS_256G 0x10000000
+
+/* tlbilx action encoding */
+#define TLBILX_T_ALL 0
+#define TLBILX_T_TID 1
+#define TLBILX_T_FULLMATCH 3
+#define TLBILX_T_CLASS0 4
+#define TLBILX_T_CLASS1 5
+#define TLBILX_T_CLASS2 6
+#define TLBILX_T_CLASS3 7
+
+#ifndef __ASSEMBLY__
+#include <asm/bug.h>
+
+extern unsigned int tlbcam_index;
+
+typedef struct {
+ unsigned int id;
+ unsigned int active;
+ unsigned long vdso_base;
+} mm_context_t;
+
+/* Page size definitions, common between 32 and 64-bit
+ *
+ * shift : is the "PAGE_SHIFT" value for that page size
+ * penc : is the pte encoding mask
+ *
+ */
+struct mmu_psize_def
+{
+ unsigned int shift; /* number of bits */
+ unsigned int enc; /* PTE encoding */
+ unsigned int ind; /* Corresponding indirect page size shift */
+ unsigned int flags;
+#define MMU_PAGE_SIZE_DIRECT 0x1 /* Supported as a direct size */
+#define MMU_PAGE_SIZE_INDIRECT 0x2 /* Supported as an indirect size */
+};
+extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
+
+static inline int shift_to_mmu_psize(unsigned int shift)
+{
+ int psize;
+
+ for (psize = 0; psize < MMU_PAGE_COUNT; ++psize)
+ if (mmu_psize_defs[psize].shift == shift)
+ return psize;
+ return -1;
+}
+
+static inline unsigned int mmu_psize_to_shift(unsigned int mmu_psize)
+{
+ if (mmu_psize_defs[mmu_psize].shift)
+ return mmu_psize_defs[mmu_psize].shift;
+ BUG();
+}
+
+/* The page sizes use the same names as 64-bit hash but are
+ * constants
+ */
+#if defined(CONFIG_PPC_4K_PAGES)
+#define mmu_virtual_psize MMU_PAGE_4K
+#else
+#error Unsupported page size
+#endif
+
+extern int mmu_linear_psize;
+extern int mmu_vmemmap_psize;
+
+struct tlb_core_data {
+ /*
+ * Per-core spinlock for e6500 TLB handlers (no tlbsrx.)
+ * Must be the first struct element.
+ */
+ u8 lock;
+
+ /* For software way selection, as on Freescale TLB1 */
+ u8 esel_next, esel_max, esel_first;
+};
+
+#ifdef CONFIG_PPC64
+extern unsigned long linear_map_top;
+extern int book3e_htw_mode;
+
+#define PPC_HTW_NONE 0
+#define PPC_HTW_IBM 1
+#define PPC_HTW_E6500 2
+
+/*
+ * 64-bit booke platforms don't load the tlb in the tlb miss handler code.
+ * HUGETLB_NEED_PRELOAD handles this - it causes huge_ptep_set_access_flags to
+ * return 1, indicating that the tlb requires preloading.
+ */
+#define HUGETLB_NEED_PRELOAD
+
+#define mmu_cleanup_all NULL
+
+#endif
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* _ASM_POWERPC_MMU_BOOK3E_H_ */
diff --git a/arch/powerpc/include/asm/nohash/mmu.h b/arch/powerpc/include/asm/nohash/mmu.h
new file mode 100644
index 000000000000..a037cb1efb57
--- /dev/null
+++ b/arch/powerpc/include/asm/nohash/mmu.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_POWERPC_NOHASH_MMU_H_
+#define _ASM_POWERPC_NOHASH_MMU_H_
+
+#ifdef CONFIG_PPC64
+#include <asm/nohash/64/mmu.h>
+#else
+#include <asm/nohash/32/mmu.h>
+#endif
+
+#endif /* _ASM_POWERPC_NOHASH_MMU_H_ */
diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h
index f6a1265face2..ddfb4b965e5b 100644
--- a/arch/powerpc/include/asm/page.h
+++ b/arch/powerpc/include/asm/page.h
@@ -335,20 +335,6 @@ void arch_free_page(struct page *page, int order);
#endif
struct vm_area_struct;
-#ifdef CONFIG_PPC_BOOK3S_64
-/*
- * For BOOK3s 64 with 4k and 64K linux page size
- * we want to use pointers, because the page table
- * actually store pfn
- */
-typedef pte_t *pgtable_t;
-#else
-#if defined(CONFIG_PPC_64K_PAGES) && defined(CONFIG_PPC64)
-typedef pte_t *pgtable_t;
-#else
-typedef struct page *pgtable_t;
-#endif
-#endif
#include <asm-generic/memory_model.h>
#endif /* __ASSEMBLY__ */
diff --git a/arch/powerpc/include/asm/stackprotector.h b/arch/powerpc/include/asm/stackprotector.h
new file mode 100644
index 000000000000..d05d969c98c2
--- /dev/null
+++ b/arch/powerpc/include/asm/stackprotector.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * GCC stack protector support.
+ *
+ */
+
+#ifndef _ASM_STACKPROTECTOR_H
+#define _ASM_STACKPROTECTOR_H
+
+#include <linux/random.h>
+#include <linux/version.h>
+#include <asm/reg.h>
+#include <asm/current.h>
+
+/*
+ * Initialize the stackprotector canary value.
+ *
+ * NOTE: this must only be called from functions that never return,
+ * and it must always be inlined.
+ */
+static __always_inline void boot_init_stack_canary(void)
+{
+ unsigned long canary;
+
+ /* Try to get a semi random initial value. */
+ canary = get_random_canary();
+ canary ^= mftb();
+ canary ^= LINUX_VERSION_CODE;
+ canary &= CANARY_MASK;
+
+ current->stack_canary = canary;
+}
+
+#endif /* _ASM_STACKPROTECTOR_H */
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index bf19c5514d6c..cccea292af68 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -21,6 +21,8 @@ CFLAGS_prom_init.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
CFLAGS_btext.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
CFLAGS_prom.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
+CFLAGS_prom_init.o += $(call cc-option, -fno-stack-protector)
+
ifdef CONFIG_FUNCTION_TRACER
# Do not trace early boot code
CFLAGS_REMOVE_cputable.o = $(CC_FLAGS_FTRACE)
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 50400f213bbf..c2288c73d56d 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -79,6 +79,9 @@ int main(void)
{
OFFSET(THREAD, task_struct, thread);
OFFSET(MM, task_struct, mm);
+#ifdef CONFIG_STACKPROTECTOR
+ OFFSET(TASK_CANARY, task_struct, stack_canary);
+#endif
OFFSET(MMCONTEXTID, mm_struct, context.id);
#ifdef CONFIG_PPC64
DEFINE(SIGSEGV, SIGSEGV);
diff --git a/arch/powerpc/kernel/cpu_setup_fsl_booke.S b/arch/powerpc/kernel/cpu_setup_fsl_booke.S
index 8d142e5d84cd..5fbc890d1094 100644
--- a/arch/powerpc/kernel/cpu_setup_fsl_booke.S
+++ b/arch/powerpc/kernel/cpu_setup_fsl_booke.S
@@ -17,7 +17,7 @@
#include <asm/processor.h>
#include <asm/cputable.h>
#include <asm/ppc_asm.h>
-#include <asm/mmu-book3e.h>
+#include <asm/nohash/mmu-book3e.h>
#include <asm/asm-offsets.h>
#include <asm/mpc85xx.h>
diff --git a/arch/powerpc/kernel/rtas_flash.c b/arch/powerpc/kernel/rtas_flash.c
index 10fabae2574d..ddab3488cadb 100644
--- a/arch/powerpc/kernel/rtas_flash.c
+++ b/arch/powerpc/kernel/rtas_flash.c
@@ -714,9 +714,9 @@ static int __init rtas_flash_init(void)
if (!rtas_validate_flash_data.buf)
return -ENOMEM;
- flash_block_cache = kmem_cache_create("rtas_flash_cache",
- RTAS_BLK_SIZE, RTAS_BLK_SIZE, 0,
- NULL);
+ flash_block_cache = kmem_cache_create_usercopy("rtas_flash_cache",
+ RTAS_BLK_SIZE, RTAS_BLK_SIZE,
+ 0, 0, RTAS_BLK_SIZE, NULL);
if (!flash_block_cache) {
printk(KERN_ERR "%s: failed to create block cache\n",
__func__);
diff --git a/arch/powerpc/kvm/e500.h b/arch/powerpc/kvm/e500.h
index 94f04fcb373e..962ee90a0dfe 100644
--- a/arch/powerpc/kvm/e500.h
+++ b/arch/powerpc/kvm/e500.h
@@ -20,7 +20,7 @@
#define KVM_E500_H
#include <linux/kvm_host.h>
-#include <asm/mmu-book3e.h>
+#include <asm/nohash/mmu-book3e.h>
#include <asm/tlb.h>
#include <asm/cputhreads.h>
diff --git a/arch/powerpc/mm/Makefile b/arch/powerpc/mm/Makefile
index 3c844bdd16c4..d4648a1e6e6c 100644
--- a/arch/powerpc/mm/Makefile
+++ b/arch/powerpc/mm/Makefile
@@ -42,13 +42,5 @@ obj-$(CONFIG_NOT_COHERENT_CACHE) += dma-noncoherent.o
obj-$(CONFIG_HIGHMEM) += highmem.o
obj-$(CONFIG_PPC_COPRO_BASE) += copro_fault.o
obj-$(CONFIG_SPAPR_TCE_IOMMU) += mmu_context_iommu.o
-obj-$(CONFIG_PPC_PTDUMP) += dump_linuxpagetables.o
-ifdef CONFIG_PPC_PTDUMP
-obj-$(CONFIG_4xx) += dump_linuxpagetables-generic.o
-obj-$(CONFIG_PPC_8xx) += dump_linuxpagetables-8xx.o
-obj-$(CONFIG_PPC_BOOK3E_MMU) += dump_linuxpagetables-generic.o
-obj-$(CONFIG_PPC_BOOK3S_32) += dump_linuxpagetables-generic.o
-obj-$(CONFIG_PPC_BOOK3S_64) += dump_linuxpagetables-book3s64.o
-endif
-obj-$(CONFIG_PPC_HTDUMP) += dump_hashpagetable.o
+obj-$(CONFIG_PPC_PTDUMP) += ptdump/
obj-$(CONFIG_PPC_MEM_KEYS) += pkeys.o
diff --git a/arch/powerpc/mm/dump_hashpagetable.c b/arch/powerpc/mm/dump_hashpagetable.c
deleted file mode 100644
index b430e4e08af6..000000000000
--- a/arch/powerpc/mm/dump_hashpagetable.c
+++ /dev/null
@@ -1,550 +0,0 @@
-/*
- * Copyright 2016, Rashmica Gupta, IBM Corp.
- *
- * This traverses the kernel virtual memory and dumps the pages that are in
- * the hash pagetable, along with their flags to
- * /sys/kernel/debug/kernel_hash_pagetable.
- *
- * If radix is enabled then there is no hash page table and so no debugfs file
- * is generated.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; version 2
- * of the License.
- */
-#include <linux/debugfs.h>
-#include <linux/fs.h>
-#include <linux/io.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/seq_file.h>
-#include <asm/pgtable.h>
-#include <linux/const.h>
-#include <asm/page.h>
-#include <asm/pgalloc.h>
-#include <asm/plpar_wrappers.h>
-#include <linux/memblock.h>
-#include <asm/firmware.h>
-
-struct pg_state {
- struct seq_file *seq;
- const struct addr_marker *marker;
- unsigned long start_address;
- unsigned int level;
- u64 current_flags;
-};
-
-struct addr_marker {
- unsigned long start_address;
- const char *name;
-};
-
-static struct addr_marker address_markers[] = {
- { 0, "Start of kernel VM" },
- { 0, "vmalloc() Area" },
- { 0, "vmalloc() End" },
- { 0, "isa I/O start" },
- { 0, "isa I/O end" },
- { 0, "phb I/O start" },
- { 0, "phb I/O end" },
- { 0, "I/O remap start" },
- { 0, "I/O remap end" },
- { 0, "vmemmap start" },
- { -1, NULL },
-};
-
-struct flag_info {
- u64 mask;
- u64 val;
- const char *set;
- const char *clear;
- bool is_val;
- int shift;
-};
-
-static const struct flag_info v_flag_array[] = {
- {
- .mask = SLB_VSID_B,
- .val = SLB_VSID_B_256M,
- .set = "ssize: 256M",
- .clear = "ssize: 1T ",
- }, {
- .mask = HPTE_V_SECONDARY,
- .val = HPTE_V_SECONDARY,
- .set = "secondary",
- .clear = "primary ",
- }, {
- .mask = HPTE_V_VALID,
- .val = HPTE_V_VALID,
- .set = "valid ",
- .clear = "invalid",
- }, {
- .mask = HPTE_V_BOLTED,
- .val = HPTE_V_BOLTED,
- .set = "bolted",
- .clear = "",
- }
-};
-
-static const struct flag_info r_flag_array[] = {
- {
- .mask = HPTE_R_PP0 | HPTE_R_PP,
- .val = PP_RWXX,
- .set = "prot:RW--",
- }, {
- .mask = HPTE_R_PP0 | HPTE_R_PP,
- .val = PP_RWRX,
- .set = "prot:RWR-",
- }, {
- .mask = HPTE_R_PP0 | HPTE_R_PP,
- .val = PP_RWRW,
- .set = "prot:RWRW",
- }, {
- .mask = HPTE_R_PP0 | HPTE_R_PP,
- .val = PP_RXRX,
- .set = "prot:R-R-",
- }, {
- .mask = HPTE_R_PP0 | HPTE_R_PP,
- .val = PP_RXXX,
- .set = "prot:R---",
- }, {
- .mask = HPTE_R_KEY_HI | HPTE_R_KEY_LO,
- .val = HPTE_R_KEY_HI | HPTE_R_KEY_LO,
- .set = "key",
- .clear = "",
- .is_val = true,
- }, {
- .mask = HPTE_R_R,
- .val = HPTE_R_R,
- .set = "ref",
- .clear = " ",
- }, {
- .mask = HPTE_R_C,
- .val = HPTE_R_C,
- .set = "changed",
- .clear = " ",
- }, {
- .mask = HPTE_R_N,
- .val = HPTE_R_N,
- .set = "no execute",
- }, {
- .mask = HPTE_R_WIMG,
- .val = HPTE_R_W,
- .set = "writethru",
- }, {
- .mask = HPTE_R_WIMG,
- .val = HPTE_R_I,
- .set = "no cache",
- }, {
- .mask = HPTE_R_WIMG,
- .val = HPTE_R_G,
- .set = "guarded",
- }
-};
-
-static int calculate_pagesize(struct pg_state *st, int ps, char s[])
-{
- static const char units[] = "BKMGTPE";
- const char *unit = units;
-
- while (ps > 9 && unit[1]) {
- ps -= 10;
- unit++;
- }
- seq_printf(st->seq, " %s_ps: %i%c\t", s, 1<<ps, *unit);
- return ps;
-}
-
-static void dump_flag_info(struct pg_state *st, const struct flag_info
- *flag, u64 pte, int num)
-{
- unsigned int i;
-
- for (i = 0; i < num; i++, flag++) {
- const char *s = NULL;
- u64 val;
-
- /* flag not defined so don't check it */
- if (flag->mask == 0)
- continue;
- /* Some 'flags' are actually values */
- if (flag->is_val) {
- val = pte & flag->val;
- if (flag->shift)
- val = val >> flag->shift;
- seq_printf(st->seq, " %s:%llx", flag->set, val);
- } else {
- if ((pte & flag->mask) == flag->val)
- s = flag->set;
- else
- s = flag->clear;
- if (s)
- seq_printf(st->seq, " %s", s);
- }
- }
-}
-
-static void dump_hpte_info(struct pg_state *st, unsigned long ea, u64 v, u64 r,
- unsigned long rpn, int bps, int aps, unsigned long lp)
-{
- int aps_index;
-
- while (ea >= st->marker[1].start_address) {
- st->marker++;
- seq_printf(st->seq, "---[ %s ]---\n", st->marker->name);
- }
- seq_printf(st->seq, "0x%lx:\t", ea);
- seq_printf(st->seq, "AVPN:%llx\t", HPTE_V_AVPN_VAL(v));
- dump_flag_info(st, v_flag_array, v, ARRAY_SIZE(v_flag_array));
- seq_printf(st->seq, " rpn: %lx\t", rpn);
- dump_flag_info(st, r_flag_array, r, ARRAY_SIZE(r_flag_array));
-
- calculate_pagesize(st, bps, "base");
- aps_index = calculate_pagesize(st, aps, "actual");
- if (aps_index != 2)
- seq_printf(st->seq, "LP enc: %lx", lp);
- seq_putc(st->seq, '\n');
-}
-
-
-static int native_find(unsigned long ea, int psize, bool primary, u64 *v, u64
- *r)
-{
- struct hash_pte *hptep;
- unsigned long hash, vsid, vpn, hpte_group, want_v, hpte_v;
- int i, ssize = mmu_kernel_ssize;
- unsigned long shift = mmu_psize_defs[psize].shift;
-
- /* calculate hash */
- vsid = get_kernel_vsid(ea, ssize);
- vpn = hpt_vpn(ea, vsid, ssize);
- hash = hpt_hash(vpn, shift, ssize);
- want_v = hpte_encode_avpn(vpn, psize, ssize);
-
- /* to check in the secondary hash table, we invert the hash */
- if (!primary)
- hash = ~hash;
- hpte_group = (hash & htab_hash_mask) * HPTES_PER_GROUP;
- for (i = 0; i < HPTES_PER_GROUP; i++) {
- hptep = htab_address + hpte_group;
- hpte_v = be64_to_cpu(hptep->v);
-
- if (HPTE_V_COMPARE(hpte_v, want_v) && (hpte_v & HPTE_V_VALID)) {
- /* HPTE matches */
- *v = be64_to_cpu(hptep->v);
- *r = be64_to_cpu(hptep->r);
- return 0;
- }
- ++hpte_group;
- }
- return -1;
-}
-
-#ifdef CONFIG_PPC_PSERIES
-static int pseries_find(unsigned long ea, int psize, bool primary, u64 *v, u64 *r)
-{
- struct hash_pte ptes[4];
- unsigned long vsid, vpn, hash, hpte_group, want_v;
- int i, j, ssize = mmu_kernel_ssize;
- long lpar_rc = 0;
- unsigned long shift = mmu_psize_defs[psize].shift;
-
- /* calculate hash */
- vsid = get_kernel_vsid(ea, ssize);
- vpn = hpt_vpn(ea, vsid, ssize);
- hash = hpt_hash(vpn, shift, ssize);
- want_v = hpte_encode_avpn(vpn, psize, ssize);
-
- /* to check in the secondary hash table, we invert the hash */
- if (!primary)
- hash = ~hash;
- hpte_group = (hash & htab_hash_mask) * HPTES_PER_GROUP;
- /* see if we can find an entry in the hpte with this hash */
- for (i = 0; i < HPTES_PER_GROUP; i += 4, hpte_group += 4) {
- lpar_rc = plpar_pte_read_4(0, hpte_group, (void *)ptes);
-
- if (lpar_rc != H_SUCCESS)
- continue;
- for (j = 0; j < 4; j++) {
- if (HPTE_V_COMPARE(ptes[j].v, want_v) &&
- (ptes[j].v & HPTE_V_VALID)) {
- /* HPTE matches */
- *v = ptes[j].v;
- *r = ptes[j].r;
- return 0;
- }
- }
- }
- return -1;
-}
-#endif
-
-static void decode_r(int bps, unsigned long r, unsigned long *rpn, int *aps,
- unsigned long *lp_bits)
-{
- struct mmu_psize_def entry;
- unsigned long arpn, mask, lp;
- int penc = -2, idx = 0, shift;
-
- /*.
- * The LP field has 8 bits. Depending on the actual page size, some of
- * these bits are concatenated with the APRN to get the RPN. The rest
- * of the bits in the LP field is the LP value and is an encoding for
- * the base page size and the actual page size.
- *
- * - find the mmu entry for our base page size
- * - go through all page encodings and use the associated mask to
- * find an encoding that matches our encoding in the LP field.
- */
- arpn = (r & HPTE_R_RPN) >> HPTE_R_RPN_SHIFT;
- lp = arpn & 0xff;
-
- entry = mmu_psize_defs[bps];
- while (idx < MMU_PAGE_COUNT) {
- penc = entry.penc[idx];
- if ((penc != -1) && (mmu_psize_defs[idx].shift)) {
- shift = mmu_psize_defs[idx].shift - HPTE_R_RPN_SHIFT;
- mask = (0x1 << (shift)) - 1;
- if ((lp & mask) == penc) {
- *aps = mmu_psize_to_shift(idx);
- *lp_bits = lp & mask;
- *rpn = arpn >> shift;
- return;
- }
- }
- idx++;
- }
-}
-
-static int base_hpte_find(unsigned long ea, int psize, bool primary, u64 *v,
- u64 *r)
-{
-#ifdef CONFIG_PPC_PSERIES
- if (firmware_has_feature(FW_FEATURE_LPAR))
- return pseries_find(ea, psize, primary, v, r);
-#endif
- return native_find(ea, psize, primary, v, r);
-}
-
-static unsigned long hpte_find(struct pg_state *st, unsigned long ea, int psize)
-{
- unsigned long slot;
- u64 v = 0, r = 0;
- unsigned long rpn, lp_bits;
- int base_psize = 0, actual_psize = 0;
-
- if (ea < PAGE_OFFSET)
- return -1;
-
- /* Look in primary table */
- slot = base_hpte_find(ea, psize, true, &v, &r);
-
- /* Look in secondary table */
- if (slot == -1)
- slot = base_hpte_find(ea, psize, false, &v, &r);
-
- /* No entry found */
- if (slot == -1)
- return -1;
-
- /*
- * We found an entry in the hash page table:
- * - check that this has the same base page
- * - find the actual page size
- * - find the RPN
- */
- base_psize = mmu_psize_to_shift(psize);
-
- if ((v & HPTE_V_LARGE) == HPTE_V_LARGE) {
- decode_r(psize, r, &rpn, &actual_psize, &lp_bits);
- } else {
- /* 4K actual page size */
- actual_psize = 12;
- rpn = (r & HPTE_R_RPN) >> HPTE_R_RPN_SHIFT;
- /* In this case there are no LP bits */
- lp_bits = -1;
- }
- /*
- * We didn't find a matching encoding, so the PTE we found isn't for
- * this address.
- */
- if (actual_psize == -1)
- return -1;
-
- dump_hpte_info(st, ea, v, r, rpn, base_psize, actual_psize, lp_bits);
- return 0;
-}
-
-static void walk_pte(struct pg_state *st, pmd_t *pmd, unsigned long start)
-{
- pte_t *pte = pte_offset_kernel(pmd, 0);
- unsigned long addr, pteval, psize;
- int i, status;
-
- for (i = 0; i < PTRS_PER_PTE; i++, pte++) {
- addr = start + i * PAGE_SIZE;
- pteval = pte_val(*pte);
-
- if (addr < VMALLOC_END)
- psize = mmu_vmalloc_psize;
- else
- psize = mmu_io_psize;
-#ifdef CONFIG_PPC_64K_PAGES
- /* check for secret 4K mappings */
- if (((pteval & H_PAGE_COMBO) == H_PAGE_COMBO) ||
- ((pteval & H_PAGE_4K_PFN) == H_PAGE_4K_PFN))
- psize = mmu_io_psize;
-#endif
- /* check for hashpte */
- status = hpte_find(st, addr, psize);
-
- if (((pteval & H_PAGE_HASHPTE) != H_PAGE_HASHPTE)
- && (status != -1)) {
- /* found a hpte that is not in the linux page tables */
- seq_printf(st->seq, "page probably bolted before linux"
- " pagetables were set: addr:%lx, pteval:%lx\n",
- addr, pteval);
- }
- }
-}
-
-static void walk_pmd(struct pg_state *st, pud_t *pud, unsigned long start)
-{
- pmd_t *pmd = pmd_offset(pud, 0);
- unsigned long addr;
- unsigned int i;
-
- for (i = 0; i < PTRS_PER_PMD; i++, pmd++) {
- addr = start + i * PMD_SIZE;
- if (!pmd_none(*pmd))
- /* pmd exists */
- walk_pte(st, pmd, addr);
- }
-}
-
-static void walk_pud(struct pg_state *st, pgd_t *pgd, unsigned long start)
-{
- pud_t *pud = pud_offset(pgd, 0);
- unsigned long addr;
- unsigned int i;
-
- for (i = 0; i < PTRS_PER_PUD; i++, pud++) {
- addr = start + i * PUD_SIZE;
- if (!pud_none(*pud))
- /* pud exists */
- walk_pmd(st, pud, addr);
- }
-}
-
-static void walk_pagetables(struct pg_state *st)
-{
- pgd_t *pgd = pgd_offset_k(0UL);
- unsigned int i;
- unsigned long addr;
-
- /*
- * Traverse the linux pagetable structure and dump pages that are in
- * the hash pagetable.
- */
- for (i = 0; i < PTRS_PER_PGD; i++, pgd++) {
- addr = KERN_VIRT_START + i * PGDIR_SIZE;
- if (!pgd_none(*pgd))
- /* pgd exists */
- walk_pud(st, pgd, addr);
- }
-}
-
-
-static void walk_linearmapping(struct pg_state *st)
-{
- unsigned long addr;
-
- /*
- * Traverse the linear mapping section of virtual memory and dump pages
- * that are in the hash pagetable.
- */
- unsigned long psize = 1 << mmu_psize_defs[mmu_linear_psize].shift;
-
- for (addr = PAGE_OFFSET; addr < PAGE_OFFSET +
- memblock_end_of_DRAM(); addr += psize)
- hpte_find(st, addr, mmu_linear_psize);
-}
-
-static void walk_vmemmap(struct pg_state *st)
-{
-#ifdef CONFIG_SPARSEMEM_VMEMMAP
- struct vmemmap_backing *ptr = vmemmap_list;
-
- /*
- * Traverse the vmemmaped memory and dump pages that are in the hash
- * pagetable.
- */
- while (ptr->list) {
- hpte_find(st, ptr->virt_addr, mmu_vmemmap_psize);
- ptr = ptr->list;
- }
- seq_puts(st->seq, "---[ vmemmap end ]---\n");
-#endif
-}
-
-static void populate_markers(void)
-{
- address_markers[0].start_address = PAGE_OFFSET;
- address_markers[1].start_address = VMALLOC_START;
- address_markers[2].start_address = VMALLOC_END;
- address_markers[3].start_address = ISA_IO_BASE;
- address_markers[4].start_address = ISA_IO_END;
- address_markers[5].start_address = PHB_IO_BASE;
- address_markers[6].start_address = PHB_IO_END;
- address_markers[7].start_address = IOREMAP_BASE;
- address_markers[8].start_address = IOREMAP_END;
-#ifdef CONFIG_PPC_BOOK3S_64
- address_markers[9].start_address = H_VMEMMAP_BASE;
-#else
- address_markers[9].start_address = VMEMMAP_BASE;
-#endif
-}
-
-static int ptdump_show(struct seq_file *m, void *v)
-{
- struct pg_state st = {
- .seq = m,
- .start_address = PAGE_OFFSET,
- .marker = address_markers,
- };
- /*
- * Traverse the 0xc, 0xd and 0xf areas of the kernel virtual memory and
- * dump pages that are in the hash pagetable.
- */
- walk_linearmapping(&st);
- walk_pagetables(&st);
- walk_vmemmap(&st);
- return 0;
-}
-
-static int ptdump_open(struct inode *inode, struct file *file)
-{
- return single_open(file, ptdump_show, NULL);
-}
-
-static const struct file_operations ptdump_fops = {
- .open = ptdump_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static int ptdump_init(void)
-{
- struct dentry *debugfs_file;
-
- if (!radix_enabled()) {
- populate_markers();
- debugfs_file = debugfs_create_file("kernel_hash_pagetable",
- 0400, NULL, NULL, &ptdump_fops);
- return debugfs_file ? 0 : -ENOMEM;
- }
- return 0;
-}
-device_initcall(ptdump_init);
diff --git a/arch/powerpc/mm/dump_linuxpagetables-8xx.c b/arch/powerpc/mm/dump_linuxpagetables-8xx.c
deleted file mode 100644
index 33f52a97975b..000000000000
--- a/arch/powerpc/mm/dump_linuxpagetables-8xx.c
+++ /dev/null
@@ -1,82 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * From split of dump_linuxpagetables.c
- * Copyright 2016, Rashmica Gupta, IBM Corp.
- *
- */
-#include <linux/kernel.h>
-#include <asm/pgtable.h>
-
-#include "dump_linuxpagetables.h"
-
-static const struct flag_info flag_array[] = {
- {
- .mask = _PAGE_PRIVILEGED,
- .val = 0,
- .set = "user",
- .clear = " ",
- }, {
- .mask = _PAGE_RO | _PAGE_NA,
- .val = 0,
- .set = "rw",
- }, {
- .mask = _PAGE_RO | _PAGE_NA,
- .val = _PAGE_RO,
- .set = "r ",
- }, {
- .mask = _PAGE_RO | _PAGE_NA,
- .val = _PAGE_NA,
- .set = " ",
- }, {
- .mask = _PAGE_EXEC,
- .val = _PAGE_EXEC,
- .set = " X ",
- .clear = " ",
- }, {
- .mask = _PAGE_PRESENT,
- .val = _PAGE_PRESENT,
- .set = "present",
- .clear = " ",
- }, {
- .mask = _PAGE_GUARDED,
- .val = _PAGE_GUARDED,
- .set = "guarded",
- .clear = " ",
- }, {
- .mask = _PAGE_DIRTY,
- .val = _PAGE_DIRTY,
- .set = "dirty",
- .clear = " ",
- }, {
- .mask = _PAGE_ACCESSED,
- .val = _PAGE_ACCESSED,
- .set = "accessed",
- .clear = " ",
- }, {
- .mask = _PAGE_NO_CACHE,
- .val = _PAGE_NO_CACHE,
- .set = "no cache",
- .clear = " ",
- }, {
- .mask = _PAGE_SPECIAL,
- .val = _PAGE_SPECIAL,
- .set = "special",
- }
-};
-
-struct pgtable_level pg_level[5] = {
- {
- }, { /* pgd */
- .flag = flag_array,
- .num = ARRAY_SIZE(flag_array),
- }, { /* pud */
- .flag = flag_array,
- .num = ARRAY_SIZE(flag_array),
- }, { /* pmd */
- .flag = flag_array,
- .num = ARRAY_SIZE(flag_array),
- }, { /* pte */
- .flag = flag_array,
- .num = ARRAY_SIZE(flag_array),
- },
-};
diff --git a/arch/powerpc/mm/dump_linuxpagetables-book3s64.c b/arch/powerpc/mm/dump_linuxpagetables-book3s64.c
deleted file mode 100644
index a637e612b205..000000000000
--- a/arch/powerpc/mm/dump_linuxpagetables-book3s64.c
+++ /dev/null
@@ -1,115 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * From split of dump_linuxpagetables.c
- * Copyright 2016, Rashmica Gupta, IBM Corp.
- *
- */
-#include <linux/kernel.h>
-#include <asm/pgtable.h>
-
-#include "dump_linuxpagetables.h"
-
-static const struct flag_info flag_array[] = {
- {
- .mask = _PAGE_PRIVILEGED,
- .val = 0,
- .set = "user",
- .clear = " ",
- }, {
- .mask = _PAGE_READ,
- .val = _PAGE_READ,
- .set = "r",
- .clear = " ",
- }, {
- .mask = _PAGE_WRITE,
- .val = _PAGE_WRITE,
- .set = "w",
- .clear = " ",
- }, {
- .mask = _PAGE_EXEC,
- .val = _PAGE_EXEC,
- .set = " X ",
- .clear = " ",
- }, {
- .mask = _PAGE_PTE,
- .val = _PAGE_PTE,
- .set = "pte",
- .clear = " ",
- }, {
- .mask = _PAGE_PRESENT,
- .val = _PAGE_PRESENT,
- .set = "present",
- .clear = " ",
- }, {
- .mask = H_PAGE_HASHPTE,
- .val = H_PAGE_HASHPTE,
- .set = "hpte",
- .clear = " ",
- }, {
- .mask = _PAGE_DIRTY,
- .val = _PAGE_DIRTY,
- .set = "dirty",
- .clear = " ",
- }, {
- .mask = _PAGE_ACCESSED,
- .val = _PAGE_ACCESSED,
- .set = "accessed",
- .clear = " ",
- }, {
- .mask = _PAGE_NON_IDEMPOTENT,
- .val = _PAGE_NON_IDEMPOTENT,
- .set = "non-idempotent",
- .clear = " ",
- }, {
- .mask = _PAGE_TOLERANT,
- .val = _PAGE_TOLERANT,
- .set = "tolerant",
- .clear = " ",
- }, {
- .mask = H_PAGE_BUSY,
- .val = H_PAGE_BUSY,
- .set = "busy",
- }, {
-#ifdef CONFIG_PPC_64K_PAGES
- .mask = H_PAGE_COMBO,
- .val = H_PAGE_COMBO,
- .set = "combo",
- }, {
- .mask = H_PAGE_4K_PFN,
- .val = H_PAGE_4K_PFN,
- .set = "4K_pfn",
- }, {
-#else /* CONFIG_PPC_64K_PAGES */
- .mask = H_PAGE_F_GIX,
- .val = H_PAGE_F_GIX,
- .set = "f_gix",
- .is_val = true,
- .shift = H_PAGE_F_GIX_SHIFT,
- }, {
- .mask = H_PAGE_F_SECOND,
- .val = H_PAGE_F_SECOND,
- .set = "f_second",
- }, {
-#endif /* CONFIG_PPC_64K_PAGES */
- .mask = _PAGE_SPECIAL,
- .val = _PAGE_SPECIAL,
- .set = "special",
- }
-};
-
-struct pgtable_level pg_level[5] = {
- {
- }, { /* pgd */
- .flag = flag_array,
- .num = ARRAY_SIZE(flag_array),
- }, { /* pud */
- .flag = flag_array,
- .num = ARRAY_SIZE(flag_array),
- }, { /* pmd */
- .flag = flag_array,
- .num = ARRAY_SIZE(flag_array),
- }, { /* pte */
- .flag = flag_array,
- .num = ARRAY_SIZE(flag_array),
- },
-};
diff --git a/arch/powerpc/mm/dump_linuxpagetables-generic.c b/arch/powerpc/mm/dump_linuxpagetables-generic.c
deleted file mode 100644
index fed6923bcb46..000000000000
--- a/arch/powerpc/mm/dump_linuxpagetables-generic.c
+++ /dev/null
@@ -1,82 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * From split of dump_linuxpagetables.c
- * Copyright 2016, Rashmica Gupta, IBM Corp.
- *
- */
-#include <linux/kernel.h>
-#include <asm/pgtable.h>
-
-#include "dump_linuxpagetables.h"
-
-static const struct flag_info flag_array[] = {
- {
- .mask = _PAGE_USER,
- .val = _PAGE_USER,
- .set = "user",
- .clear = " ",
- }, {
- .mask = _PAGE_RW,
- .val = 0,
- .set = "r ",
- .clear = "rw",
- }, {
-#ifndef CONFIG_PPC_BOOK3S_32
- .mask = _PAGE_EXEC,
- .val = _PAGE_EXEC,
- .set = " X ",
- .clear = " ",
- }, {
-#endif
- .mask = _PAGE_PRESENT,
- .val = _PAGE_PRESENT,
- .set = "present",
- .clear = " ",
- }, {
- .mask = _PAGE_GUARDED,
- .val = _PAGE_GUARDED,
- .set = "guarded",
- .clear = " ",
- }, {
- .mask = _PAGE_DIRTY,
- .val = _PAGE_DIRTY,
- .set = "dirty",
- .clear = " ",
- }, {
- .mask = _PAGE_ACCESSED,
- .val = _PAGE_ACCESSED,
- .set = "accessed",
- .clear = " ",
- }, {
- .mask = _PAGE_WRITETHRU,
- .val = _PAGE_WRITETHRU,
- .set = "write through",
- .clear = " ",
- }, {
- .mask = _PAGE_NO_CACHE,
- .val = _PAGE_NO_CACHE,
- .set = "no cache",
- .clear = " ",
- }, {
- .mask = _PAGE_SPECIAL,
- .val = _PAGE_SPECIAL,
- .set = "special",
- }
-};
-
-struct pgtable_level pg_level[5] = {
- {
- }, { /* pgd */
- .flag = flag_array,
- .num = ARRAY_SIZE(flag_array),
- }, { /* pud */
- .flag = flag_array,
- .num = ARRAY_SIZE(flag_array),
- }, { /* pmd */
- .flag = flag_array,
- .num = ARRAY_SIZE(flag_array),
- }, { /* pte */
- .flag = flag_array,
- .num = ARRAY_SIZE(flag_array),
- },
-};
diff --git a/arch/powerpc/mm/dump_linuxpagetables.c b/arch/powerpc/mm/dump_linuxpagetables.c
deleted file mode 100644
index 6aa41669ac1a..000000000000
--- a/arch/powerpc/mm/dump_linuxpagetables.c
+++ /dev/null
@@ -1,373 +0,0 @@
-/*
- * Copyright 2016, Rashmica Gupta, IBM Corp.
- *
- * This traverses the kernel pagetables and dumps the
- * information about the used sections of memory to
- * /sys/kernel/debug/kernel_pagetables.
- *
- * Derived from the arm64 implementation:
- * Copyright (c) 2014, The Linux Foundation, Laura Abbott.
- * (C) Copyright 2008 Intel Corporation, Arjan van de Ven.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; version 2
- * of the License.
- */
-#include <linux/debugfs.h>
-#include <linux/fs.h>
-#include <linux/hugetlb.h>
-#include <linux/io.h>
-#include <linux/mm.h>
-#include <linux/highmem.h>
-#include <linux/sched.h>
-#include <linux/seq_file.h>
-#include <asm/fixmap.h>
-#include <asm/pgtable.h>
-#include <linux/const.h>
-#include <asm/page.h>
-#include <asm/pgalloc.h>
-
-#include "dump_linuxpagetables.h"
-
-#ifdef CONFIG_PPC32
-#define KERN_VIRT_START 0
-#endif
-
-/*
- * To visualise what is happening,
- *
- * - PTRS_PER_P** = how many entries there are in the corresponding P**
- * - P**_SHIFT = how many bits of the address we use to index into the
- * corresponding P**
- * - P**_SIZE is how much memory we can access through the table - not the
- * size of the table itself.
- * P**={PGD, PUD, PMD, PTE}
- *
- *
- * Each entry of the PGD points to a PUD. Each entry of a PUD points to a
- * PMD. Each entry of a PMD points to a PTE. And every PTE entry points to
- * a page.
- *
- * In the case where there are only 3 levels, the PUD is folded into the
- * PGD: every PUD has only one entry which points to the PMD.
- *
- * The page dumper groups page table entries of the same type into a single
- * description. It uses pg_state to track the range information while
- * iterating over the PTE entries. When the continuity is broken it then
- * dumps out a description of the range - ie PTEs that are virtually contiguous
- * with the same PTE flags are chunked together. This is to make it clear how
- * different areas of the kernel virtual memory are used.
- *
- */
-struct pg_state {
- struct seq_file *seq;
- const struct addr_marker *marker;
- unsigned long start_address;
- unsigned long start_pa;
- unsigned long last_pa;
- unsigned int level;
- u64 current_flags;
-};
-
-struct addr_marker {
- unsigned long start_address;
- const char *name;
-};
-
-static struct addr_marker address_markers[] = {
- { 0, "Start of kernel VM" },
- { 0, "vmalloc() Area" },
- { 0, "vmalloc() End" },
-#ifdef CONFIG_PPC64
- { 0, "isa I/O start" },
- { 0, "isa I/O end" },
- { 0, "phb I/O start" },
- { 0, "phb I/O end" },
- { 0, "I/O remap start" },
- { 0, "I/O remap end" },
- { 0, "vmemmap start" },
-#else
- { 0, "Early I/O remap start" },
- { 0, "Early I/O remap end" },
-#ifdef CONFIG_NOT_COHERENT_CACHE
- { 0, "Consistent mem start" },
- { 0, "Consistent mem end" },
-#endif
-#ifdef CONFIG_HIGHMEM
- { 0, "Highmem PTEs start" },
- { 0, "Highmem PTEs end" },
-#endif
- { 0, "Fixmap start" },
- { 0, "Fixmap end" },
-#endif
- { -1, NULL },
-};
-
-static void dump_flag_info(struct pg_state *st, const struct flag_info
- *flag, u64 pte, int num)
-{
- unsigned int i;
-
- for (i = 0; i < num; i++, flag++) {
- const char *s = NULL;
- u64 val;
-
- /* flag not defined so don't check it */
- if (flag->mask == 0)
- continue;
- /* Some 'flags' are actually values */
- if (flag->is_val) {
- val = pte & flag->val;
- if (flag->shift)
- val = val >> flag->shift;
- seq_printf(st->seq, " %s:%llx", flag->set, val);
- } else {
- if ((pte & flag->mask) == flag->val)
- s = flag->set;
- else
- s = flag->clear;
- if (s)
- seq_printf(st->seq, " %s", s);
- }
- st->current_flags &= ~flag->mask;
- }
- if (st->current_flags != 0)
- seq_printf(st->seq, " unknown flags:%llx", st->current_flags);
-}
-
-static void dump_addr(struct pg_state *st, unsigned long addr)
-{
- static const char units[] = "KMGTPE";
- const char *unit = units;
- unsigned long delta;
-
-#ifdef CONFIG_PPC64
- seq_printf(st->seq, "0x%016lx-0x%016lx ", st->start_address, addr-1);
- seq_printf(st->seq, "0x%016lx ", st->start_pa);
-#else
- seq_printf(st->seq, "0x%08lx-0x%08lx ", st->start_address, addr - 1);
- seq_printf(st->seq, "0x%08lx ", st->start_pa);
-#endif
-
- delta = (addr - st->start_address) >> 10;
- /* Work out what appropriate unit to use */
- while (!(delta & 1023) && unit[1]) {
- delta >>= 10;
- unit++;
- }
- seq_printf(st->seq, "%9lu%c", delta, *unit);
-
-}
-
-static void note_page(struct pg_state *st, unsigned long addr,
- unsigned int level, u64 val)
-{
- u64 flag = val & pg_level[level].mask;
- u64 pa = val & PTE_RPN_MASK;
-
- /* At first no level is set */
- if (!st->level) {
- st->level = level;
- st->current_flags = flag;
- st->start_address = addr;
- st->start_pa = pa;
- st->last_pa = pa;
- seq_printf(st->seq, "---[ %s ]---\n", st->marker->name);
- /*
- * Dump the section of virtual memory when:
- * - the PTE flags from one entry to the next differs.
- * - we change levels in the tree.
- * - the address is in a different section of memory and is thus
- * used for a different purpose, regardless of the flags.
- * - the pa of this page is not adjacent to the last inspected page
- */
- } else if (flag != st->current_flags || level != st->level ||
- addr >= st->marker[1].start_address ||
- pa != st->last_pa + PAGE_SIZE) {
-
- /* Check the PTE flags */
- if (st->current_flags) {
- dump_addr(st, addr);
-
- /* Dump all the flags */
- if (pg_level[st->level].flag)
- dump_flag_info(st, pg_level[st->level].flag,
- st->current_flags,
- pg_level[st->level].num);
-
- seq_putc(st->seq, '\n');
- }
-
- /*
- * Address indicates we have passed the end of the
- * current section of virtual memory
- */
- while (addr >= st->marker[1].start_address) {
- st->marker++;
- seq_printf(st->seq, "---[ %s ]---\n", st->marker->name);
- }
- st->start_address = addr;
- st->start_pa = pa;
- st->last_pa = pa;
- st->current_flags = flag;
- st->level = level;
- } else {
- st->last_pa = pa;
- }
-}
-
-static void walk_pte(struct pg_state *st, pmd_t *pmd, unsigned long start)
-{
- pte_t *pte = pte_offset_kernel(pmd, 0);
- unsigned long addr;
- unsigned int i;
-
- for (i = 0; i < PTRS_PER_PTE; i++, pte++) {
- addr = start + i * PAGE_SIZE;
- note_page(st, addr, 4, pte_val(*pte));
-
- }
-}
-
-static void walk_pmd(struct pg_state *st, pud_t *pud, unsigned long start)
-{
- pmd_t *pmd = pmd_offset(pud, 0);
- unsigned long addr;
- unsigned int i;
-
- for (i = 0; i < PTRS_PER_PMD; i++, pmd++) {
- addr = start + i * PMD_SIZE;
- if (!pmd_none(*pmd) && !pmd_huge(*pmd))
- /* pmd exists */
- walk_pte(st, pmd, addr);
- else
- note_page(st, addr, 3, pmd_val(*pmd));
- }
-}
-
-static void walk_pud(struct pg_state *st, pgd_t *pgd, unsigned long start)
-{
- pud_t *pud = pud_offset(pgd, 0);
- unsigned long addr;
- unsigned int i;
-
- for (i = 0; i < PTRS_PER_PUD; i++, pud++) {
- addr = start + i * PUD_SIZE;
- if (!pud_none(*pud) && !pud_huge(*pud))
- /* pud exists */
- walk_pmd(st, pud, addr);
- else
- note_page(st, addr, 2, pud_val(*pud));
- }
-}
-
-static void walk_pagetables(struct pg_state *st)
-{
- pgd_t *pgd = pgd_offset_k(0UL);
- unsigned int i;
- unsigned long addr;
-
- addr = st->start_address;
-
- /*
- * Traverse the linux pagetable structure and dump pages that are in
- * the hash pagetable.
- */
- for (i = 0; i < PTRS_PER_PGD; i++, pgd++, addr += PGDIR_SIZE) {
- if (!pgd_none(*pgd) && !pgd_huge(*pgd))
- /* pgd exists */
- walk_pud(st, pgd, addr);
- else
- note_page(st, addr, 1, pgd_val(*pgd));
- }
-}
-
-static void populate_markers(void)
-{
- int i = 0;
-
- address_markers[i++].start_address = PAGE_OFFSET;
- address_markers[i++].start_address = VMALLOC_START;
- address_markers[i++].start_address = VMALLOC_END;
-#ifdef CONFIG_PPC64
- address_markers[i++].start_address = ISA_IO_BASE;
- address_markers[i++].start_address = ISA_IO_END;
- address_markers[i++].start_address = PHB_IO_BASE;
- address_markers[i++].start_address = PHB_IO_END;
- address_markers[i++].start_address = IOREMAP_BASE;
- address_markers[i++].start_address = IOREMAP_END;
-#ifdef CONFIG_PPC_BOOK3S_64
- address_markers[i++].start_address = H_VMEMMAP_BASE;
-#else
- address_markers[i++].start_address = VMEMMAP_BASE;
-#endif
-#else /* !CONFIG_PPC64 */
- address_markers[i++].start_address = ioremap_bot;
- address_markers[i++].start_address = IOREMAP_TOP;
-#ifdef CONFIG_NOT_COHERENT_CACHE
- address_markers[i++].start_address = IOREMAP_TOP;
- address_markers[i++].start_address = IOREMAP_TOP +
- CONFIG_CONSISTENT_SIZE;
-#endif
-#ifdef CONFIG_HIGHMEM
- address_markers[i++].start_address = PKMAP_BASE;
- address_markers[i++].start_address = PKMAP_ADDR(LAST_PKMAP);
-#endif
- address_markers[i++].start_address = FIXADDR_START;
- address_markers[i++].start_address = FIXADDR_TOP;
-#endif /* CONFIG_PPC64 */
-}
-
-static int ptdump_show(struct seq_file *m, void *v)
-{
- struct pg_state st = {
- .seq = m,
- .marker = address_markers,
- };
-
- if (radix_enabled())
- st.start_address = PAGE_OFFSET;
- else
- st.start_address = KERN_VIRT_START;
-
- /* Traverse kernel page tables */
- walk_pagetables(&st);
- note_page(&st, 0, 0, 0);
- return 0;
-}
-
-
-static int ptdump_open(struct inode *inode, struct file *file)
-{
- return single_open(file, ptdump_show, NULL);
-}
-
-static const struct file_operations ptdump_fops = {
- .open = ptdump_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static void build_pgtable_complete_mask(void)
-{
- unsigned int i, j;
-
- for (i = 0; i < ARRAY_SIZE(pg_level); i++)
- if (pg_level[i].flag)
- for (j = 0; j < pg_level[i].num; j++)
- pg_level[i].mask |= pg_level[i].flag[j].mask;
-}
-
-static int ptdump_init(void)
-{
- struct dentry *debugfs_file;
-
- populate_markers();
- build_pgtable_complete_mask();
- debugfs_file = debugfs_create_file("kernel_page_tables", 0400, NULL,
- NULL, &ptdump_fops);
- return debugfs_file ? 0 : -ENOMEM;
-}
-device_initcall(ptdump_init);
diff --git a/arch/powerpc/mm/dump_linuxpagetables.h b/arch/powerpc/mm/dump_linuxpagetables.h
deleted file mode 100644
index 5d513636de73..000000000000
--- a/arch/powerpc/mm/dump_linuxpagetables.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#include <linux/types.h>
-
-struct flag_info {
- u64 mask;
- u64 val;
- const char *set;
- const char *clear;
- bool is_val;
- int shift;
-};
-
-struct pgtable_level {
- const struct flag_info *flag;
- size_t num;
- u64 mask;
-};
-
-extern struct pgtable_level pg_level[5];
diff --git a/arch/powerpc/mm/pgtable-radix.c b/arch/powerpc/mm/pgtable-radix.c
index 9ee235fca427..75cbedaac5d2 100644
--- a/arch/powerpc/mm/pgtable-radix.c
+++ b/arch/powerpc/mm/pgtable-radix.c
@@ -1041,8 +1041,8 @@ void radix__ptep_set_access_flags(struct vm_area_struct *vma, pte_t *ptep,
pte_t entry, unsigned long address, int psize)
{
struct mm_struct *mm = vma->vm_mm;
- unsigned long set = pte_val(entry) & (_PAGE_DIRTY | _PAGE_ACCESSED |
- _PAGE_RW | _PAGE_EXEC);
+ unsigned long set = pte_val(entry) & (_PAGE_DIRTY | _PAGE_SOFT_DIRTY |
+ _PAGE_ACCESSED | _PAGE_RW | _PAGE_EXEC);
unsigned long change = pte_val(entry) ^ pte_val(*ptep);
/*
diff --git a/arch/powerpc/mm/ptdump/8xx.c b/arch/powerpc/mm/ptdump/8xx.c
new file mode 100644
index 000000000000..80b4f73f7fdc
--- /dev/null
+++ b/arch/powerpc/mm/ptdump/8xx.c
@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * From split of dump_linuxpagetables.c
+ * Copyright 2016, Rashmica Gupta, IBM Corp.
+ *
+ */
+#include <linux/kernel.h>
+#include <asm/pgtable.h>
+
+#include "ptdump.h"
+
+static const struct flag_info flag_array[] = {
+ {
+ .mask = _PAGE_PRIVILEGED,
+ .val = 0,
+ .set = "user",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_RO | _PAGE_NA,
+ .val = 0,
+ .set = "rw",
+ }, {
+ .mask = _PAGE_RO | _PAGE_NA,
+ .val = _PAGE_RO,
+ .set = "r ",
+ }, {
+ .mask = _PAGE_RO | _PAGE_NA,
+ .val = _PAGE_NA,
+ .set = " ",
+ }, {
+ .mask = _PAGE_EXEC,
+ .val = _PAGE_EXEC,
+ .set = " X ",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_PRESENT,
+ .val = _PAGE_PRESENT,
+ .set = "present",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_GUARDED,
+ .val = _PAGE_GUARDED,
+ .set = "guarded",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_DIRTY,
+ .val = _PAGE_DIRTY,
+ .set = "dirty",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_ACCESSED,
+ .val = _PAGE_ACCESSED,
+ .set = "accessed",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_NO_CACHE,
+ .val = _PAGE_NO_CACHE,
+ .set = "no cache",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_SPECIAL,
+ .val = _PAGE_SPECIAL,
+ .set = "special",
+ }
+};
+
+struct pgtable_level pg_level[5] = {
+ {
+ }, { /* pgd */
+ .flag = flag_array,
+ .num = ARRAY_SIZE(flag_array),
+ }, { /* pud */
+ .flag = flag_array,
+ .num = ARRAY_SIZE(flag_array),
+ }, { /* pmd */
+ .flag = flag_array,
+ .num = ARRAY_SIZE(flag_array),
+ }, { /* pte */
+ .flag = flag_array,
+ .num = ARRAY_SIZE(flag_array),
+ },
+};
diff --git a/arch/powerpc/mm/ptdump/Makefile b/arch/powerpc/mm/ptdump/Makefile
new file mode 100644
index 000000000000..712762be3cb1
--- /dev/null
+++ b/arch/powerpc/mm/ptdump/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+
+obj-y += ptdump.o
+
+obj-$(CONFIG_4xx) += shared.o
+obj-$(CONFIG_PPC_8xx) += 8xx.o
+obj-$(CONFIG_PPC_BOOK3E_MMU) += shared.o
+obj-$(CONFIG_PPC_BOOK3S_32) += shared.o bats.o segment_regs.o
+obj-$(CONFIG_PPC_BOOK3S_64) += book3s64.o hashpagetable.o
diff --git a/arch/powerpc/mm/ptdump/bats.c b/arch/powerpc/mm/ptdump/bats.c
new file mode 100644
index 000000000000..a0d23e96e841
--- /dev/null
+++ b/arch/powerpc/mm/ptdump/bats.c
@@ -0,0 +1,173 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2018, Christophe Leroy CS S.I.
+ * <christophe.leroy@....fr>
+ *
+ * This dumps the content of BATS
+ */
+
+#include <asm/debugfs.h>
+#include <asm/pgtable.h>
+#include <asm/cpu_has_feature.h>
+
+static char *pp_601(int k, int pp)
+{
+ if (pp == 0)
+ return k ? "NA" : "RWX";
+ if (pp == 1)
+ return k ? "ROX" : "RWX";
+ if (pp == 2)
+ return k ? "RWX" : "RWX";
+ return k ? "ROX" : "ROX";
+}
+
+static void bat_show_601(struct seq_file *m, int idx, u32 lower, u32 upper)
+{
+ u32 blpi = upper & 0xfffe0000;
+ u32 k = (upper >> 2) & 3;
+ u32 pp = upper & 3;
+ phys_addr_t pbn = PHYS_BAT_ADDR(lower);
+ u32 bsm = lower & 0x3ff;
+ u32 size = (bsm + 1) << 17;
+
+ seq_printf(m, "%d: ", idx);
+ if (!(lower & 0x40)) {
+ seq_puts(m, " -\n");
+ return;
+ }
+
+ seq_printf(m, "0x%08x-0x%08x ", blpi, blpi + size - 1);
+#ifdef CONFIG_PHYS_64BIT
+ seq_printf(m, "0x%016llx ", pbn);
+#else
+ seq_printf(m, "0x%08x ", pbn);
+#endif
+
+ seq_printf(m, "Kernel %s User %s", pp_601(k & 2, pp), pp_601(k & 1, pp));
+
+ if (lower & _PAGE_WRITETHRU)
+ seq_puts(m, "write through ");
+ if (lower & _PAGE_NO_CACHE)
+ seq_puts(m, "no cache ");
+ if (lower & _PAGE_COHERENT)
+ seq_puts(m, "coherent ");
+ seq_puts(m, "\n");
+}
+
+#define BAT_SHOW_601(_m, _n, _l, _u) bat_show_601(_m, _n, mfspr(_l), mfspr(_u))
+
+static int bats_show_601(struct seq_file *m, void *v)
+{
+ seq_puts(m, "---[ Block Address Translation ]---\n");
+
+ BAT_SHOW_601(m, 0, SPRN_IBAT0L, SPRN_IBAT0U);
+ BAT_SHOW_601(m, 1, SPRN_IBAT1L, SPRN_IBAT1U);
+ BAT_SHOW_601(m, 2, SPRN_IBAT2L, SPRN_IBAT2U);
+ BAT_SHOW_601(m, 3, SPRN_IBAT3L, SPRN_IBAT3U);
+
+ return 0;
+}
+
+static void bat_show_603(struct seq_file *m, int idx, u32 lower, u32 upper, bool is_d)
+{
+ u32 bepi = upper & 0xfffe0000;
+ u32 bl = (upper >> 2) & 0x7ff;
+ u32 k = upper & 3;
+ phys_addr_t brpn = PHYS_BAT_ADDR(lower);
+ u32 size = (bl + 1) << 17;
+
+ seq_printf(m, "%d: ", idx);
+ if (k == 0) {
+ seq_puts(m, " -\n");
+ return;
+ }
+
+ seq_printf(m, "0x%08x-0x%08x ", bepi, bepi + size - 1);
+#ifdef CONFIG_PHYS_64BIT
+ seq_printf(m, "0x%016llx ", brpn);
+#else
+ seq_printf(m, "0x%08x ", brpn);
+#endif
+
+ if (k == 1)
+ seq_puts(m, "User ");
+ else if (k == 2)
+ seq_puts(m, "Kernel ");
+ else
+ seq_puts(m, "Kernel/User ");
+
+ if (lower & BPP_RX)
+ seq_puts(m, is_d ? "RO " : "EXEC ");
+ else if (lower & BPP_RW)
+ seq_puts(m, is_d ? "RW " : "EXEC ");
+ else
+ seq_puts(m, is_d ? "NA " : "NX ");
+
+ if (lower & _PAGE_WRITETHRU)
+ seq_puts(m, "write through ");
+ if (lower & _PAGE_NO_CACHE)
+ seq_puts(m, "no cache ");
+ if (lower & _PAGE_COHERENT)
+ seq_puts(m, "coherent ");
+ if (lower & _PAGE_GUARDED)
+ seq_puts(m, "guarded ");
+ seq_puts(m, "\n");
+}
+
+#define BAT_SHOW_603(_m, _n, _l, _u, _d) bat_show_603(_m, _n, mfspr(_l), mfspr(_u), _d)
+
+static int bats_show_603(struct seq_file *m, void *v)
+{
+ seq_puts(m, "---[ Instruction Block Address Translation ]---\n");
+
+ BAT_SHOW_603(m, 0, SPRN_IBAT0L, SPRN_IBAT0U, false);
+ BAT_SHOW_603(m, 1, SPRN_IBAT1L, SPRN_IBAT1U, false);
+ BAT_SHOW_603(m, 2, SPRN_IBAT2L, SPRN_IBAT2U, false);
+ BAT_SHOW_603(m, 3, SPRN_IBAT3L, SPRN_IBAT3U, false);
+ if (mmu_has_feature(MMU_FTR_USE_HIGH_BATS)) {
+ BAT_SHOW_603(m, 4, SPRN_IBAT4L, SPRN_IBAT4U, false);
+ BAT_SHOW_603(m, 5, SPRN_IBAT5L, SPRN_IBAT5U, false);
+ BAT_SHOW_603(m, 6, SPRN_IBAT6L, SPRN_IBAT6U, false);
+ BAT_SHOW_603(m, 7, SPRN_IBAT7L, SPRN_IBAT7U, false);
+ }
+
+ seq_puts(m, "\n---[ Data Block Address Translation ]---\n");
+
+ BAT_SHOW_603(m, 0, SPRN_DBAT0L, SPRN_DBAT0U, true);
+ BAT_SHOW_603(m, 1, SPRN_DBAT1L, SPRN_DBAT1U, true);
+ BAT_SHOW_603(m, 2, SPRN_DBAT2L, SPRN_DBAT2U, true);
+ BAT_SHOW_603(m, 3, SPRN_DBAT3L, SPRN_DBAT3U, true);
+ if (mmu_has_feature(MMU_FTR_USE_HIGH_BATS)) {
+ BAT_SHOW_603(m, 4, SPRN_DBAT4L, SPRN_DBAT4U, true);
+ BAT_SHOW_603(m, 5, SPRN_DBAT5L, SPRN_DBAT5U, true);
+ BAT_SHOW_603(m, 6, SPRN_DBAT6L, SPRN_DBAT6U, true);
+ BAT_SHOW_603(m, 7, SPRN_DBAT7L, SPRN_DBAT7U, true);
+ }
+
+ return 0;
+}
+
+static int bats_open(struct inode *inode, struct file *file)
+{
+ if (cpu_has_feature(CPU_FTR_601))
+ return single_open(file, bats_show_601, NULL);
+
+ return single_open(file, bats_show_603, NULL);
+}
+
+static const struct file_operations bats_fops = {
+ .open = bats_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int __init bats_init(void)
+{
+ struct dentry *debugfs_file;
+
+ debugfs_file = debugfs_create_file("block_address_translation", 0400,
+ powerpc_debugfs_root, NULL, &bats_fops);
+ return debugfs_file ? 0 : -ENOMEM;
+}
+device_initcall(bats_init);
diff --git a/arch/powerpc/mm/ptdump/book3s64.c b/arch/powerpc/mm/ptdump/book3s64.c
new file mode 100644
index 000000000000..0bce5b85d011
--- /dev/null
+++ b/arch/powerpc/mm/ptdump/book3s64.c
@@ -0,0 +1,115 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * From split of dump_linuxpagetables.c
+ * Copyright 2016, Rashmica Gupta, IBM Corp.
+ *
+ */
+#include <linux/kernel.h>
+#include <asm/pgtable.h>
+
+#include "ptdump.h"
+
+static const struct flag_info flag_array[] = {
+ {
+ .mask = _PAGE_PRIVILEGED,
+ .val = 0,
+ .set = "user",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_READ,
+ .val = _PAGE_READ,
+ .set = "r",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_WRITE,
+ .val = _PAGE_WRITE,
+ .set = "w",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_EXEC,
+ .val = _PAGE_EXEC,
+ .set = " X ",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_PTE,
+ .val = _PAGE_PTE,
+ .set = "pte",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_PRESENT,
+ .val = _PAGE_PRESENT,
+ .set = "present",
+ .clear = " ",
+ }, {
+ .mask = H_PAGE_HASHPTE,
+ .val = H_PAGE_HASHPTE,
+ .set = "hpte",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_DIRTY,
+ .val = _PAGE_DIRTY,
+ .set = "dirty",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_ACCESSED,
+ .val = _PAGE_ACCESSED,
+ .set = "accessed",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_NON_IDEMPOTENT,
+ .val = _PAGE_NON_IDEMPOTENT,
+ .set = "non-idempotent",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_TOLERANT,
+ .val = _PAGE_TOLERANT,
+ .set = "tolerant",
+ .clear = " ",
+ }, {
+ .mask = H_PAGE_BUSY,
+ .val = H_PAGE_BUSY,
+ .set = "busy",
+ }, {
+#ifdef CONFIG_PPC_64K_PAGES
+ .mask = H_PAGE_COMBO,
+ .val = H_PAGE_COMBO,
+ .set = "combo",
+ }, {
+ .mask = H_PAGE_4K_PFN,
+ .val = H_PAGE_4K_PFN,
+ .set = "4K_pfn",
+ }, {
+#else /* CONFIG_PPC_64K_PAGES */
+ .mask = H_PAGE_F_GIX,
+ .val = H_PAGE_F_GIX,
+ .set = "f_gix",
+ .is_val = true,
+ .shift = H_PAGE_F_GIX_SHIFT,
+ }, {
+ .mask = H_PAGE_F_SECOND,
+ .val = H_PAGE_F_SECOND,
+ .set = "f_second",
+ }, {
+#endif /* CONFIG_PPC_64K_PAGES */
+ .mask = _PAGE_SPECIAL,
+ .val = _PAGE_SPECIAL,
+ .set = "special",
+ }
+};
+
+struct pgtable_level pg_level[5] = {
+ {
+ }, { /* pgd */
+ .flag = flag_array,
+ .num = ARRAY_SIZE(flag_array),
+ }, { /* pud */
+ .flag = flag_array,
+ .num = ARRAY_SIZE(flag_array),
+ }, { /* pmd */
+ .flag = flag_array,
+ .num = ARRAY_SIZE(flag_array),
+ }, { /* pte */
+ .flag = flag_array,
+ .num = ARRAY_SIZE(flag_array),
+ },
+};
diff --git a/arch/powerpc/mm/ptdump/hashpagetable.c b/arch/powerpc/mm/ptdump/hashpagetable.c
new file mode 100644
index 000000000000..b430e4e08af6
--- /dev/null
+++ b/arch/powerpc/mm/ptdump/hashpagetable.c
@@ -0,0 +1,550 @@
+/*
+ * Copyright 2016, Rashmica Gupta, IBM Corp.
+ *
+ * This traverses the kernel virtual memory and dumps the pages that are in
+ * the hash pagetable, along with their flags to
+ * /sys/kernel/debug/kernel_hash_pagetable.
+ *
+ * If radix is enabled then there is no hash page table and so no debugfs file
+ * is generated.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#include <linux/debugfs.h>
+#include <linux/fs.h>
+#include <linux/io.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/seq_file.h>
+#include <asm/pgtable.h>
+#include <linux/const.h>
+#include <asm/page.h>
+#include <asm/pgalloc.h>
+#include <asm/plpar_wrappers.h>
+#include <linux/memblock.h>
+#include <asm/firmware.h>
+
+struct pg_state {
+ struct seq_file *seq;
+ const struct addr_marker *marker;
+ unsigned long start_address;
+ unsigned int level;
+ u64 current_flags;
+};
+
+struct addr_marker {
+ unsigned long start_address;
+ const char *name;
+};
+
+static struct addr_marker address_markers[] = {
+ { 0, "Start of kernel VM" },
+ { 0, "vmalloc() Area" },
+ { 0, "vmalloc() End" },
+ { 0, "isa I/O start" },
+ { 0, "isa I/O end" },
+ { 0, "phb I/O start" },
+ { 0, "phb I/O end" },
+ { 0, "I/O remap start" },
+ { 0, "I/O remap end" },
+ { 0, "vmemmap start" },
+ { -1, NULL },
+};
+
+struct flag_info {
+ u64 mask;
+ u64 val;
+ const char *set;
+ const char *clear;
+ bool is_val;
+ int shift;
+};
+
+static const struct flag_info v_flag_array[] = {
+ {
+ .mask = SLB_VSID_B,
+ .val = SLB_VSID_B_256M,
+ .set = "ssize: 256M",
+ .clear = "ssize: 1T ",
+ }, {
+ .mask = HPTE_V_SECONDARY,
+ .val = HPTE_V_SECONDARY,
+ .set = "secondary",
+ .clear = "primary ",
+ }, {
+ .mask = HPTE_V_VALID,
+ .val = HPTE_V_VALID,
+ .set = "valid ",
+ .clear = "invalid",
+ }, {
+ .mask = HPTE_V_BOLTED,
+ .val = HPTE_V_BOLTED,
+ .set = "bolted",
+ .clear = "",
+ }
+};
+
+static const struct flag_info r_flag_array[] = {
+ {
+ .mask = HPTE_R_PP0 | HPTE_R_PP,
+ .val = PP_RWXX,
+ .set = "prot:RW--",
+ }, {
+ .mask = HPTE_R_PP0 | HPTE_R_PP,
+ .val = PP_RWRX,
+ .set = "prot:RWR-",
+ }, {
+ .mask = HPTE_R_PP0 | HPTE_R_PP,
+ .val = PP_RWRW,
+ .set = "prot:RWRW",
+ }, {
+ .mask = HPTE_R_PP0 | HPTE_R_PP,
+ .val = PP_RXRX,
+ .set = "prot:R-R-",
+ }, {
+ .mask = HPTE_R_PP0 | HPTE_R_PP,
+ .val = PP_RXXX,
+ .set = "prot:R---",
+ }, {
+ .mask = HPTE_R_KEY_HI | HPTE_R_KEY_LO,
+ .val = HPTE_R_KEY_HI | HPTE_R_KEY_LO,
+ .set = "key",
+ .clear = "",
+ .is_val = true,
+ }, {
+ .mask = HPTE_R_R,
+ .val = HPTE_R_R,
+ .set = "ref",
+ .clear = " ",
+ }, {
+ .mask = HPTE_R_C,
+ .val = HPTE_R_C,
+ .set = "changed",
+ .clear = " ",
+ }, {
+ .mask = HPTE_R_N,
+ .val = HPTE_R_N,
+ .set = "no execute",
+ }, {
+ .mask = HPTE_R_WIMG,
+ .val = HPTE_R_W,
+ .set = "writethru",
+ }, {
+ .mask = HPTE_R_WIMG,
+ .val = HPTE_R_I,
+ .set = "no cache",
+ }, {
+ .mask = HPTE_R_WIMG,
+ .val = HPTE_R_G,
+ .set = "guarded",
+ }
+};
+
+static int calculate_pagesize(struct pg_state *st, int ps, char s[])
+{
+ static const char units[] = "BKMGTPE";
+ const char *unit = units;
+
+ while (ps > 9 && unit[1]) {
+ ps -= 10;
+ unit++;
+ }
+ seq_printf(st->seq, " %s_ps: %i%c\t", s, 1<<ps, *unit);
+ return ps;
+}
+
+static void dump_flag_info(struct pg_state *st, const struct flag_info
+ *flag, u64 pte, int num)
+{
+ unsigned int i;
+
+ for (i = 0; i < num; i++, flag++) {
+ const char *s = NULL;
+ u64 val;
+
+ /* flag not defined so don't check it */
+ if (flag->mask == 0)
+ continue;
+ /* Some 'flags' are actually values */
+ if (flag->is_val) {
+ val = pte & flag->val;
+ if (flag->shift)
+ val = val >> flag->shift;
+ seq_printf(st->seq, " %s:%llx", flag->set, val);
+ } else {
+ if ((pte & flag->mask) == flag->val)
+ s = flag->set;
+ else
+ s = flag->clear;
+ if (s)
+ seq_printf(st->seq, " %s", s);
+ }
+ }
+}
+
+static void dump_hpte_info(struct pg_state *st, unsigned long ea, u64 v, u64 r,
+ unsigned long rpn, int bps, int aps, unsigned long lp)
+{
+ int aps_index;
+
+ while (ea >= st->marker[1].start_address) {
+ st->marker++;
+ seq_printf(st->seq, "---[ %s ]---\n", st->marker->name);
+ }
+ seq_printf(st->seq, "0x%lx:\t", ea);
+ seq_printf(st->seq, "AVPN:%llx\t", HPTE_V_AVPN_VAL(v));
+ dump_flag_info(st, v_flag_array, v, ARRAY_SIZE(v_flag_array));
+ seq_printf(st->seq, " rpn: %lx\t", rpn);
+ dump_flag_info(st, r_flag_array, r, ARRAY_SIZE(r_flag_array));
+
+ calculate_pagesize(st, bps, "base");
+ aps_index = calculate_pagesize(st, aps, "actual");
+ if (aps_index != 2)
+ seq_printf(st->seq, "LP enc: %lx", lp);
+ seq_putc(st->seq, '\n');
+}
+
+
+static int native_find(unsigned long ea, int psize, bool primary, u64 *v, u64
+ *r)
+{
+ struct hash_pte *hptep;
+ unsigned long hash, vsid, vpn, hpte_group, want_v, hpte_v;
+ int i, ssize = mmu_kernel_ssize;
+ unsigned long shift = mmu_psize_defs[psize].shift;
+
+ /* calculate hash */
+ vsid = get_kernel_vsid(ea, ssize);
+ vpn = hpt_vpn(ea, vsid, ssize);
+ hash = hpt_hash(vpn, shift, ssize);
+ want_v = hpte_encode_avpn(vpn, psize, ssize);
+
+ /* to check in the secondary hash table, we invert the hash */
+ if (!primary)
+ hash = ~hash;
+ hpte_group = (hash & htab_hash_mask) * HPTES_PER_GROUP;
+ for (i = 0; i < HPTES_PER_GROUP; i++) {
+ hptep = htab_address + hpte_group;
+ hpte_v = be64_to_cpu(hptep->v);
+
+ if (HPTE_V_COMPARE(hpte_v, want_v) && (hpte_v & HPTE_V_VALID)) {
+ /* HPTE matches */
+ *v = be64_to_cpu(hptep->v);
+ *r = be64_to_cpu(hptep->r);
+ return 0;
+ }
+ ++hpte_group;
+ }
+ return -1;
+}
+
+#ifdef CONFIG_PPC_PSERIES
+static int pseries_find(unsigned long ea, int psize, bool primary, u64 *v, u64 *r)
+{
+ struct hash_pte ptes[4];
+ unsigned long vsid, vpn, hash, hpte_group, want_v;
+ int i, j, ssize = mmu_kernel_ssize;
+ long lpar_rc = 0;
+ unsigned long shift = mmu_psize_defs[psize].shift;
+
+ /* calculate hash */
+ vsid = get_kernel_vsid(ea, ssize);
+ vpn = hpt_vpn(ea, vsid, ssize);
+ hash = hpt_hash(vpn, shift, ssize);
+ want_v = hpte_encode_avpn(vpn, psize, ssize);
+
+ /* to check in the secondary hash table, we invert the hash */
+ if (!primary)
+ hash = ~hash;
+ hpte_group = (hash & htab_hash_mask) * HPTES_PER_GROUP;
+ /* see if we can find an entry in the hpte with this hash */
+ for (i = 0; i < HPTES_PER_GROUP; i += 4, hpte_group += 4) {
+ lpar_rc = plpar_pte_read_4(0, hpte_group, (void *)ptes);
+
+ if (lpar_rc != H_SUCCESS)
+ continue;
+ for (j = 0; j < 4; j++) {
+ if (HPTE_V_COMPARE(ptes[j].v, want_v) &&
+ (ptes[j].v & HPTE_V_VALID)) {
+ /* HPTE matches */
+ *v = ptes[j].v;
+ *r = ptes[j].r;
+ return 0;
+ }
+ }
+ }
+ return -1;
+}
+#endif
+
+static void decode_r(int bps, unsigned long r, unsigned long *rpn, int *aps,
+ unsigned long *lp_bits)
+{
+ struct mmu_psize_def entry;
+ unsigned long arpn, mask, lp;
+ int penc = -2, idx = 0, shift;
+
+ /*.
+ * The LP field has 8 bits. Depending on the actual page size, some of
+ * these bits are concatenated with the APRN to get the RPN. The rest
+ * of the bits in the LP field is the LP value and is an encoding for
+ * the base page size and the actual page size.
+ *
+ * - find the mmu entry for our base page size
+ * - go through all page encodings and use the associated mask to
+ * find an encoding that matches our encoding in the LP field.
+ */
+ arpn = (r & HPTE_R_RPN) >> HPTE_R_RPN_SHIFT;
+ lp = arpn & 0xff;
+
+ entry = mmu_psize_defs[bps];
+ while (idx < MMU_PAGE_COUNT) {
+ penc = entry.penc[idx];
+ if ((penc != -1) && (mmu_psize_defs[idx].shift)) {
+ shift = mmu_psize_defs[idx].shift - HPTE_R_RPN_SHIFT;
+ mask = (0x1 << (shift)) - 1;
+ if ((lp & mask) == penc) {
+ *aps = mmu_psize_to_shift(idx);
+ *lp_bits = lp & mask;
+ *rpn = arpn >> shift;
+ return;
+ }
+ }
+ idx++;
+ }
+}
+
+static int base_hpte_find(unsigned long ea, int psize, bool primary, u64 *v,
+ u64 *r)
+{
+#ifdef CONFIG_PPC_PSERIES
+ if (firmware_has_feature(FW_FEATURE_LPAR))
+ return pseries_find(ea, psize, primary, v, r);
+#endif
+ return native_find(ea, psize, primary, v, r);
+}
+
+static unsigned long hpte_find(struct pg_state *st, unsigned long ea, int psize)
+{
+ unsigned long slot;
+ u64 v = 0, r = 0;
+ unsigned long rpn, lp_bits;
+ int base_psize = 0, actual_psize = 0;
+
+ if (ea < PAGE_OFFSET)
+ return -1;
+
+ /* Look in primary table */
+ slot = base_hpte_find(ea, psize, true, &v, &r);
+
+ /* Look in secondary table */
+ if (slot == -1)
+ slot = base_hpte_find(ea, psize, false, &v, &r);
+
+ /* No entry found */
+ if (slot == -1)
+ return -1;
+
+ /*
+ * We found an entry in the hash page table:
+ * - check that this has the same base page
+ * - find the actual page size
+ * - find the RPN
+ */
+ base_psize = mmu_psize_to_shift(psize);
+
+ if ((v & HPTE_V_LARGE) == HPTE_V_LARGE) {
+ decode_r(psize, r, &rpn, &actual_psize, &lp_bits);
+ } else {
+ /* 4K actual page size */
+ actual_psize = 12;
+ rpn = (r & HPTE_R_RPN) >> HPTE_R_RPN_SHIFT;
+ /* In this case there are no LP bits */
+ lp_bits = -1;
+ }
+ /*
+ * We didn't find a matching encoding, so the PTE we found isn't for
+ * this address.
+ */
+ if (actual_psize == -1)
+ return -1;
+
+ dump_hpte_info(st, ea, v, r, rpn, base_psize, actual_psize, lp_bits);
+ return 0;
+}
+
+static void walk_pte(struct pg_state *st, pmd_t *pmd, unsigned long start)
+{
+ pte_t *pte = pte_offset_kernel(pmd, 0);
+ unsigned long addr, pteval, psize;
+ int i, status;
+
+ for (i = 0; i < PTRS_PER_PTE; i++, pte++) {
+ addr = start + i * PAGE_SIZE;
+ pteval = pte_val(*pte);
+
+ if (addr < VMALLOC_END)
+ psize = mmu_vmalloc_psize;
+ else
+ psize = mmu_io_psize;
+#ifdef CONFIG_PPC_64K_PAGES
+ /* check for secret 4K mappings */
+ if (((pteval & H_PAGE_COMBO) == H_PAGE_COMBO) ||
+ ((pteval & H_PAGE_4K_PFN) == H_PAGE_4K_PFN))
+ psize = mmu_io_psize;
+#endif
+ /* check for hashpte */
+ status = hpte_find(st, addr, psize);
+
+ if (((pteval & H_PAGE_HASHPTE) != H_PAGE_HASHPTE)
+ && (status != -1)) {
+ /* found a hpte that is not in the linux page tables */
+ seq_printf(st->seq, "page probably bolted before linux"
+ " pagetables were set: addr:%lx, pteval:%lx\n",
+ addr, pteval);
+ }
+ }
+}
+
+static void walk_pmd(struct pg_state *st, pud_t *pud, unsigned long start)
+{
+ pmd_t *pmd = pmd_offset(pud, 0);
+ unsigned long addr;
+ unsigned int i;
+
+ for (i = 0; i < PTRS_PER_PMD; i++, pmd++) {
+ addr = start + i * PMD_SIZE;
+ if (!pmd_none(*pmd))
+ /* pmd exists */
+ walk_pte(st, pmd, addr);
+ }
+}
+
+static void walk_pud(struct pg_state *st, pgd_t *pgd, unsigned long start)
+{
+ pud_t *pud = pud_offset(pgd, 0);
+ unsigned long addr;
+ unsigned int i;
+
+ for (i = 0; i < PTRS_PER_PUD; i++, pud++) {
+ addr = start + i * PUD_SIZE;
+ if (!pud_none(*pud))
+ /* pud exists */
+ walk_pmd(st, pud, addr);
+ }
+}
+
+static void walk_pagetables(struct pg_state *st)
+{
+ pgd_t *pgd = pgd_offset_k(0UL);
+ unsigned int i;
+ unsigned long addr;
+
+ /*
+ * Traverse the linux pagetable structure and dump pages that are in
+ * the hash pagetable.
+ */
+ for (i = 0; i < PTRS_PER_PGD; i++, pgd++) {
+ addr = KERN_VIRT_START + i * PGDIR_SIZE;
+ if (!pgd_none(*pgd))
+ /* pgd exists */
+ walk_pud(st, pgd, addr);
+ }
+}
+
+
+static void walk_linearmapping(struct pg_state *st)
+{
+ unsigned long addr;
+
+ /*
+ * Traverse the linear mapping section of virtual memory and dump pages
+ * that are in the hash pagetable.
+ */
+ unsigned long psize = 1 << mmu_psize_defs[mmu_linear_psize].shift;
+
+ for (addr = PAGE_OFFSET; addr < PAGE_OFFSET +
+ memblock_end_of_DRAM(); addr += psize)
+ hpte_find(st, addr, mmu_linear_psize);
+}
+
+static void walk_vmemmap(struct pg_state *st)
+{
+#ifdef CONFIG_SPARSEMEM_VMEMMAP
+ struct vmemmap_backing *ptr = vmemmap_list;
+
+ /*
+ * Traverse the vmemmaped memory and dump pages that are in the hash
+ * pagetable.
+ */
+ while (ptr->list) {
+ hpte_find(st, ptr->virt_addr, mmu_vmemmap_psize);
+ ptr = ptr->list;
+ }
+ seq_puts(st->seq, "---[ vmemmap end ]---\n");
+#endif
+}
+
+static void populate_markers(void)
+{
+ address_markers[0].start_address = PAGE_OFFSET;
+ address_markers[1].start_address = VMALLOC_START;
+ address_markers[2].start_address = VMALLOC_END;
+ address_markers[3].start_address = ISA_IO_BASE;
+ address_markers[4].start_address = ISA_IO_END;
+ address_markers[5].start_address = PHB_IO_BASE;
+ address_markers[6].start_address = PHB_IO_END;
+ address_markers[7].start_address = IOREMAP_BASE;
+ address_markers[8].start_address = IOREMAP_END;
+#ifdef CONFIG_PPC_BOOK3S_64
+ address_markers[9].start_address = H_VMEMMAP_BASE;
+#else
+ address_markers[9].start_address = VMEMMAP_BASE;
+#endif
+}
+
+static int ptdump_show(struct seq_file *m, void *v)
+{
+ struct pg_state st = {
+ .seq = m,
+ .start_address = PAGE_OFFSET,
+ .marker = address_markers,
+ };
+ /*
+ * Traverse the 0xc, 0xd and 0xf areas of the kernel virtual memory and
+ * dump pages that are in the hash pagetable.
+ */
+ walk_linearmapping(&st);
+ walk_pagetables(&st);
+ walk_vmemmap(&st);
+ return 0;
+}
+
+static int ptdump_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, ptdump_show, NULL);
+}
+
+static const struct file_operations ptdump_fops = {
+ .open = ptdump_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int ptdump_init(void)
+{
+ struct dentry *debugfs_file;
+
+ if (!radix_enabled()) {
+ populate_markers();
+ debugfs_file = debugfs_create_file("kernel_hash_pagetable",
+ 0400, NULL, NULL, &ptdump_fops);
+ return debugfs_file ? 0 : -ENOMEM;
+ }
+ return 0;
+}
+device_initcall(ptdump_init);
diff --git a/arch/powerpc/mm/ptdump/ptdump.c b/arch/powerpc/mm/ptdump/ptdump.c
new file mode 100644
index 000000000000..76be98988578
--- /dev/null
+++ b/arch/powerpc/mm/ptdump/ptdump.c
@@ -0,0 +1,373 @@
+/*
+ * Copyright 2016, Rashmica Gupta, IBM Corp.
+ *
+ * This traverses the kernel pagetables and dumps the
+ * information about the used sections of memory to
+ * /sys/kernel/debug/kernel_pagetables.
+ *
+ * Derived from the arm64 implementation:
+ * Copyright (c) 2014, The Linux Foundation, Laura Abbott.
+ * (C) Copyright 2008 Intel Corporation, Arjan van de Ven.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#include <linux/debugfs.h>
+#include <linux/fs.h>
+#include <linux/hugetlb.h>
+#include <linux/io.h>
+#include <linux/mm.h>
+#include <linux/highmem.h>
+#include <linux/sched.h>
+#include <linux/seq_file.h>
+#include <asm/fixmap.h>
+#include <asm/pgtable.h>
+#include <linux/const.h>
+#include <asm/page.h>
+#include <asm/pgalloc.h>
+
+#include "ptdump.h"
+
+#ifdef CONFIG_PPC32
+#define KERN_VIRT_START 0
+#endif
+
+/*
+ * To visualise what is happening,
+ *
+ * - PTRS_PER_P** = how many entries there are in the corresponding P**
+ * - P**_SHIFT = how many bits of the address we use to index into the
+ * corresponding P**
+ * - P**_SIZE is how much memory we can access through the table - not the
+ * size of the table itself.
+ * P**={PGD, PUD, PMD, PTE}
+ *
+ *
+ * Each entry of the PGD points to a PUD. Each entry of a PUD points to a
+ * PMD. Each entry of a PMD points to a PTE. And every PTE entry points to
+ * a page.
+ *
+ * In the case where there are only 3 levels, the PUD is folded into the
+ * PGD: every PUD has only one entry which points to the PMD.
+ *
+ * The page dumper groups page table entries of the same type into a single
+ * description. It uses pg_state to track the range information while
+ * iterating over the PTE entries. When the continuity is broken it then
+ * dumps out a description of the range - ie PTEs that are virtually contiguous
+ * with the same PTE flags are chunked together. This is to make it clear how
+ * different areas of the kernel virtual memory are used.
+ *
+ */
+struct pg_state {
+ struct seq_file *seq;
+ const struct addr_marker *marker;
+ unsigned long start_address;
+ unsigned long start_pa;
+ unsigned long last_pa;
+ unsigned int level;
+ u64 current_flags;
+};
+
+struct addr_marker {
+ unsigned long start_address;
+ const char *name;
+};
+
+static struct addr_marker address_markers[] = {
+ { 0, "Start of kernel VM" },
+ { 0, "vmalloc() Area" },
+ { 0, "vmalloc() End" },
+#ifdef CONFIG_PPC64
+ { 0, "isa I/O start" },
+ { 0, "isa I/O end" },
+ { 0, "phb I/O start" },
+ { 0, "phb I/O end" },
+ { 0, "I/O remap start" },
+ { 0, "I/O remap end" },
+ { 0, "vmemmap start" },
+#else
+ { 0, "Early I/O remap start" },
+ { 0, "Early I/O remap end" },
+#ifdef CONFIG_NOT_COHERENT_CACHE
+ { 0, "Consistent mem start" },
+ { 0, "Consistent mem end" },
+#endif
+#ifdef CONFIG_HIGHMEM
+ { 0, "Highmem PTEs start" },
+ { 0, "Highmem PTEs end" },
+#endif
+ { 0, "Fixmap start" },
+ { 0, "Fixmap end" },
+#endif
+ { -1, NULL },
+};
+
+static void dump_flag_info(struct pg_state *st, const struct flag_info
+ *flag, u64 pte, int num)
+{
+ unsigned int i;
+
+ for (i = 0; i < num; i++, flag++) {
+ const char *s = NULL;
+ u64 val;
+
+ /* flag not defined so don't check it */
+ if (flag->mask == 0)
+ continue;
+ /* Some 'flags' are actually values */
+ if (flag->is_val) {
+ val = pte & flag->val;
+ if (flag->shift)
+ val = val >> flag->shift;
+ seq_printf(st->seq, " %s:%llx", flag->set, val);
+ } else {
+ if ((pte & flag->mask) == flag->val)
+ s = flag->set;
+ else
+ s = flag->clear;
+ if (s)
+ seq_printf(st->seq, " %s", s);
+ }
+ st->current_flags &= ~flag->mask;
+ }
+ if (st->current_flags != 0)
+ seq_printf(st->seq, " unknown flags:%llx", st->current_flags);
+}
+
+static void dump_addr(struct pg_state *st, unsigned long addr)
+{
+ static const char units[] = "KMGTPE";
+ const char *unit = units;
+ unsigned long delta;
+
+#ifdef CONFIG_PPC64
+ seq_printf(st->seq, "0x%016lx-0x%016lx ", st->start_address, addr-1);
+ seq_printf(st->seq, "0x%016lx ", st->start_pa);
+#else
+ seq_printf(st->seq, "0x%08lx-0x%08lx ", st->start_address, addr - 1);
+ seq_printf(st->seq, "0x%08lx ", st->start_pa);
+#endif
+
+ delta = (addr - st->start_address) >> 10;
+ /* Work out what appropriate unit to use */
+ while (!(delta & 1023) && unit[1]) {
+ delta >>= 10;
+ unit++;
+ }
+ seq_printf(st->seq, "%9lu%c", delta, *unit);
+
+}
+
+static void note_page(struct pg_state *st, unsigned long addr,
+ unsigned int level, u64 val)
+{
+ u64 flag = val & pg_level[level].mask;
+ u64 pa = val & PTE_RPN_MASK;
+
+ /* At first no level is set */
+ if (!st->level) {
+ st->level = level;
+ st->current_flags = flag;
+ st->start_address = addr;
+ st->start_pa = pa;
+ st->last_pa = pa;
+ seq_printf(st->seq, "---[ %s ]---\n", st->marker->name);
+ /*
+ * Dump the section of virtual memory when:
+ * - the PTE flags from one entry to the next differs.
+ * - we change levels in the tree.
+ * - the address is in a different section of memory and is thus
+ * used for a different purpose, regardless of the flags.
+ * - the pa of this page is not adjacent to the last inspected page
+ */
+ } else if (flag != st->current_flags || level != st->level ||
+ addr >= st->marker[1].start_address ||
+ pa != st->last_pa + PAGE_SIZE) {
+
+ /* Check the PTE flags */
+ if (st->current_flags) {
+ dump_addr(st, addr);
+
+ /* Dump all the flags */
+ if (pg_level[st->level].flag)
+ dump_flag_info(st, pg_level[st->level].flag,
+ st->current_flags,
+ pg_level[st->level].num);
+
+ seq_putc(st->seq, '\n');
+ }
+
+ /*
+ * Address indicates we have passed the end of the
+ * current section of virtual memory
+ */
+ while (addr >= st->marker[1].start_address) {
+ st->marker++;
+ seq_printf(st->seq, "---[ %s ]---\n", st->marker->name);
+ }
+ st->start_address = addr;
+ st->start_pa = pa;
+ st->last_pa = pa;
+ st->current_flags = flag;
+ st->level = level;
+ } else {
+ st->last_pa = pa;
+ }
+}
+
+static void walk_pte(struct pg_state *st, pmd_t *pmd, unsigned long start)
+{
+ pte_t *pte = pte_offset_kernel(pmd, 0);
+ unsigned long addr;
+ unsigned int i;
+
+ for (i = 0; i < PTRS_PER_PTE; i++, pte++) {
+ addr = start + i * PAGE_SIZE;
+ note_page(st, addr, 4, pte_val(*pte));
+
+ }
+}
+
+static void walk_pmd(struct pg_state *st, pud_t *pud, unsigned long start)
+{
+ pmd_t *pmd = pmd_offset(pud, 0);
+ unsigned long addr;
+ unsigned int i;
+
+ for (i = 0; i < PTRS_PER_PMD; i++, pmd++) {
+ addr = start + i * PMD_SIZE;
+ if (!pmd_none(*pmd) && !pmd_huge(*pmd))
+ /* pmd exists */
+ walk_pte(st, pmd, addr);
+ else
+ note_page(st, addr, 3, pmd_val(*pmd));
+ }
+}
+
+static void walk_pud(struct pg_state *st, pgd_t *pgd, unsigned long start)
+{
+ pud_t *pud = pud_offset(pgd, 0);
+ unsigned long addr;
+ unsigned int i;
+
+ for (i = 0; i < PTRS_PER_PUD; i++, pud++) {
+ addr = start + i * PUD_SIZE;
+ if (!pud_none(*pud) && !pud_huge(*pud))
+ /* pud exists */
+ walk_pmd(st, pud, addr);
+ else
+ note_page(st, addr, 2, pud_val(*pud));
+ }
+}
+
+static void walk_pagetables(struct pg_state *st)
+{
+ pgd_t *pgd = pgd_offset_k(0UL);
+ unsigned int i;
+ unsigned long addr;
+
+ addr = st->start_address;
+
+ /*
+ * Traverse the linux pagetable structure and dump pages that are in
+ * the hash pagetable.
+ */
+ for (i = 0; i < PTRS_PER_PGD; i++, pgd++, addr += PGDIR_SIZE) {
+ if (!pgd_none(*pgd) && !pgd_huge(*pgd))
+ /* pgd exists */
+ walk_pud(st, pgd, addr);
+ else
+ note_page(st, addr, 1, pgd_val(*pgd));
+ }
+}
+
+static void populate_markers(void)
+{
+ int i = 0;
+
+ address_markers[i++].start_address = PAGE_OFFSET;
+ address_markers[i++].start_address = VMALLOC_START;
+ address_markers[i++].start_address = VMALLOC_END;
+#ifdef CONFIG_PPC64
+ address_markers[i++].start_address = ISA_IO_BASE;
+ address_markers[i++].start_address = ISA_IO_END;
+ address_markers[i++].start_address = PHB_IO_BASE;
+ address_markers[i++].start_address = PHB_IO_END;
+ address_markers[i++].start_address = IOREMAP_BASE;
+ address_markers[i++].start_address = IOREMAP_END;
+#ifdef CONFIG_PPC_BOOK3S_64
+ address_markers[i++].start_address = H_VMEMMAP_BASE;
+#else
+ address_markers[i++].start_address = VMEMMAP_BASE;
+#endif
+#else /* !CONFIG_PPC64 */
+ address_markers[i++].start_address = ioremap_bot;
+ address_markers[i++].start_address = IOREMAP_TOP;
+#ifdef CONFIG_NOT_COHERENT_CACHE
+ address_markers[i++].start_address = IOREMAP_TOP;
+ address_markers[i++].start_address = IOREMAP_TOP +
+ CONFIG_CONSISTENT_SIZE;
+#endif
+#ifdef CONFIG_HIGHMEM
+ address_markers[i++].start_address = PKMAP_BASE;
+ address_markers[i++].start_address = PKMAP_ADDR(LAST_PKMAP);
+#endif
+ address_markers[i++].start_address = FIXADDR_START;
+ address_markers[i++].start_address = FIXADDR_TOP;
+#endif /* CONFIG_PPC64 */
+}
+
+static int ptdump_show(struct seq_file *m, void *v)
+{
+ struct pg_state st = {
+ .seq = m,
+ .marker = address_markers,
+ };
+
+ if (radix_enabled())
+ st.start_address = PAGE_OFFSET;
+ else
+ st.start_address = KERN_VIRT_START;
+
+ /* Traverse kernel page tables */
+ walk_pagetables(&st);
+ note_page(&st, 0, 0, 0);
+ return 0;
+}
+
+
+static int ptdump_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, ptdump_show, NULL);
+}
+
+static const struct file_operations ptdump_fops = {
+ .open = ptdump_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static void build_pgtable_complete_mask(void)
+{
+ unsigned int i, j;
+
+ for (i = 0; i < ARRAY_SIZE(pg_level); i++)
+ if (pg_level[i].flag)
+ for (j = 0; j < pg_level[i].num; j++)
+ pg_level[i].mask |= pg_level[i].flag[j].mask;
+}
+
+static int ptdump_init(void)
+{
+ struct dentry *debugfs_file;
+
+ populate_markers();
+ build_pgtable_complete_mask();
+ debugfs_file = debugfs_create_file("kernel_page_tables", 0400, NULL,
+ NULL, &ptdump_fops);
+ return debugfs_file ? 0 : -ENOMEM;
+}
+device_initcall(ptdump_init);
diff --git a/arch/powerpc/mm/ptdump/ptdump.h b/arch/powerpc/mm/ptdump/ptdump.h
new file mode 100644
index 000000000000..5d513636de73
--- /dev/null
+++ b/arch/powerpc/mm/ptdump/ptdump.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <linux/types.h>
+
+struct flag_info {
+ u64 mask;
+ u64 val;
+ const char *set;
+ const char *clear;
+ bool is_val;
+ int shift;
+};
+
+struct pgtable_level {
+ const struct flag_info *flag;
+ size_t num;
+ u64 mask;
+};
+
+extern struct pgtable_level pg_level[5];
diff --git a/arch/powerpc/mm/ptdump/segment_regs.c b/arch/powerpc/mm/ptdump/segment_regs.c
new file mode 100644
index 000000000000..501843664bb9
--- /dev/null
+++ b/arch/powerpc/mm/ptdump/segment_regs.c
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2018, Christophe Leroy CS S.I.
+ * <christophe.leroy@....fr>
+ *
+ * This dumps the content of Segment Registers
+ */
+
+#include <asm/debugfs.h>
+
+static void seg_show(struct seq_file *m, int i)
+{
+ u32 val = mfsrin(i << 28);
+
+ seq_printf(m, "0x%01x0000000-0x%01xfffffff ", i, i);
+ seq_printf(m, "Kern key %d ", (val >> 30) & 1);
+ seq_printf(m, "User key %d ", (val >> 29) & 1);
+ if (val & 0x80000000) {
+ seq_printf(m, "Device 0x%03x", (val >> 20) & 0x1ff);
+ seq_printf(m, "-0x%05x", val & 0xfffff);
+ } else {
+ if (val & 0x10000000)
+ seq_puts(m, "No Exec ");
+ seq_printf(m, "VSID 0x%06x", val & 0xffffff);
+ }
+ seq_puts(m, "\n");
+}
+
+static int sr_show(struct seq_file *m, void *v)
+{
+ int i;
+
+ seq_puts(m, "---[ User Segments ]---\n");
+ for (i = 0; i < TASK_SIZE >> 28; i++)
+ seg_show(m, i);
+
+ seq_puts(m, "\n---[ Kernel Segments ]---\n");
+ for (; i < 16; i++)
+ seg_show(m, i);
+
+ return 0;
+}
+
+static int sr_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, sr_show, NULL);
+}
+
+static const struct file_operations sr_fops = {
+ .open = sr_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int __init sr_init(void)
+{
+ struct dentry *debugfs_file;
+
+ debugfs_file = debugfs_create_file("segment_registers", 0400,
+ powerpc_debugfs_root, NULL, &sr_fops);
+ return debugfs_file ? 0 : -ENOMEM;
+}
+device_initcall(sr_init);
diff --git a/arch/powerpc/mm/ptdump/shared.c b/arch/powerpc/mm/ptdump/shared.c
new file mode 100644
index 000000000000..1cda3d91c6c2
--- /dev/null
+++ b/arch/powerpc/mm/ptdump/shared.c
@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * From split of dump_linuxpagetables.c
+ * Copyright 2016, Rashmica Gupta, IBM Corp.
+ *
+ */
+#include <linux/kernel.h>
+#include <asm/pgtable.h>
+
+#include "ptdump.h"
+
+static const struct flag_info flag_array[] = {
+ {
+ .mask = _PAGE_USER,
+ .val = _PAGE_USER,
+ .set = "user",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_RW,
+ .val = 0,
+ .set = "r ",
+ .clear = "rw",
+ }, {
+#ifndef CONFIG_PPC_BOOK3S_32
+ .mask = _PAGE_EXEC,
+ .val = _PAGE_EXEC,
+ .set = " X ",
+ .clear = " ",
+ }, {
+#endif
+ .mask = _PAGE_PRESENT,
+ .val = _PAGE_PRESENT,
+ .set = "present",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_GUARDED,
+ .val = _PAGE_GUARDED,
+ .set = "guarded",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_DIRTY,
+ .val = _PAGE_DIRTY,
+ .set = "dirty",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_ACCESSED,
+ .val = _PAGE_ACCESSED,
+ .set = "accessed",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_WRITETHRU,
+ .val = _PAGE_WRITETHRU,
+ .set = "write through",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_NO_CACHE,
+ .val = _PAGE_NO_CACHE,
+ .set = "no cache",
+ .clear = " ",
+ }, {
+ .mask = _PAGE_SPECIAL,
+ .val = _PAGE_SPECIAL,
+ .set = "special",
+ }
+};
+
+struct pgtable_level pg_level[5] = {
+ {
+ }, { /* pgd */
+ .flag = flag_array,
+ .num = ARRAY_SIZE(flag_array),
+ }, { /* pud */
+ .flag = flag_array,
+ .num = ARRAY_SIZE(flag_array),
+ }, { /* pmd */
+ .flag = flag_array,
+ .num = ARRAY_SIZE(flag_array),
+ }, { /* pte */
+ .flag = flag_array,
+ .num = ARRAY_SIZE(flag_array),
+ },
+};
diff --git a/arch/powerpc/platforms/powermac/Makefile b/arch/powerpc/platforms/powermac/Makefile
index 561a67d65e4d..923bfb340433 100644
--- a/arch/powerpc/platforms/powermac/Makefile
+++ b/arch/powerpc/platforms/powermac/Makefile
@@ -1,5 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
CFLAGS_bootx_init.o += -fPIC
+CFLAGS_bootx_init.o += $(call cc-option, -fno-stack-protector)
ifdef CONFIG_FUNCTION_TRACER
# Do not trace early boot code
diff --git a/arch/x86/kernel/cpu/topology.c b/arch/x86/kernel/cpu/topology.c
index 71ca064e3794..31fe56a90cbf 100644
--- a/arch/x86/kernel/cpu/topology.c
+++ b/arch/x86/kernel/cpu/topology.c
@@ -44,7 +44,7 @@ int detect_extended_topology_early(struct cpuinfo_x86 *c)
* initial apic id, which also represents 32-bit extended x2apic id.
*/
c->initial_apicid = edx;
- smp_num_siblings = LEVEL_MAX_SIBLINGS(ebx);
+ smp_num_siblings = max_t(int, smp_num_siblings, LEVEL_MAX_SIBLINGS(ebx));
#endif
return 0;
}
@@ -68,7 +68,8 @@ int detect_extended_topology(struct cpuinfo_x86 *c)
* Populate HT related information from sub-leaf level 0.
*/
cpuid_count(0xb, SMT_LEVEL, &eax, &ebx, &ecx, &edx);
- core_level_siblings = smp_num_siblings = LEVEL_MAX_SIBLINGS(ebx);
+ core_level_siblings = LEVEL_MAX_SIBLINGS(ebx);
+ smp_num_siblings = max_t(int, smp_num_siblings, LEVEL_MAX_SIBLINGS(ebx));
core_plus_mask_width = ht_mask_width = BITS_SHIFT_NEXT_LEVEL(eax);
sub_index = 1;
diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c
index 7d372db8bee1..e33b732ad337 100644
--- a/arch/x86/kernel/fpu/xstate.c
+++ b/arch/x86/kernel/fpu/xstate.c
@@ -811,6 +811,14 @@ void __init fpu__init_system_xstate(void)
fpu__init_prepare_fx_sw_frame();
setup_init_fpu_buf();
setup_xstate_comp();
+
+ /*
+ * CPU capabilities initialization runs before FPU init. So
+ * X86_FEATURE_OSXSAVE is not set. Now that XSAVE is completely
+ * functional, set the feature bit so depending code works.
+ */
+ setup_force_cpu_cap(X86_FEATURE_OSXSAVE);
+
print_xstate_offset_size();
pr_info("x86/fpu: Enabled xstate features 0x%llx, context size is %d bytes, using '%s' format.\n",
diff --git a/block/partitions/amiga.c b/block/partitions/amiga.c
index 560936617d9c..4a4160221183 100644
--- a/block/partitions/amiga.c
+++ b/block/partitions/amiga.c
@@ -32,7 +32,8 @@ int amiga_partition(struct parsed_partitions *state)
unsigned char *data;
struct RigidDiskBlock *rdb;
struct PartitionBlock *pb;
- int start_sect, nr_sects, blk, part, res = 0;
+ sector_t start_sect, nr_sects;
+ int blk, part, res = 0;
int blksize = 1; /* Multiplier for disk block size */
int slot = 1;
char b[BDEVNAME_SIZE];
@@ -100,14 +101,14 @@ int amiga_partition(struct parsed_partitions *state)
/* Tell Kernel about it */
- nr_sects = (be32_to_cpu(pb->pb_Environment[10]) + 1 -
- be32_to_cpu(pb->pb_Environment[9])) *
+ nr_sects = ((sector_t)be32_to_cpu(pb->pb_Environment[10]) + 1 -
+ be32_to_cpu(pb->pb_Environment[9])) *
be32_to_cpu(pb->pb_Environment[3]) *
be32_to_cpu(pb->pb_Environment[5]) *
blksize;
if (!nr_sects)
continue;
- start_sect = be32_to_cpu(pb->pb_Environment[9]) *
+ start_sect = (sector_t)be32_to_cpu(pb->pb_Environment[9]) *
be32_to_cpu(pb->pb_Environment[3]) *
be32_to_cpu(pb->pb_Environment[5]) *
blksize;
diff --git a/drivers/base/regmap/regmap-i2c.c b/drivers/base/regmap/regmap-i2c.c
index 056acde5e7d3..4b9d68af090b 100644
--- a/drivers/base/regmap/regmap-i2c.c
+++ b/drivers/base/regmap/regmap-i2c.c
@@ -246,8 +246,8 @@ static int regmap_i2c_smbus_i2c_read(void *context, const void *reg,
static struct regmap_bus regmap_i2c_smbus_i2c_block = {
.write = regmap_i2c_smbus_i2c_write,
.read = regmap_i2c_smbus_i2c_read,
- .max_raw_read = I2C_SMBUS_BLOCK_MAX,
- .max_raw_write = I2C_SMBUS_BLOCK_MAX,
+ .max_raw_read = I2C_SMBUS_BLOCK_MAX - 1,
+ .max_raw_write = I2C_SMBUS_BLOCK_MAX - 1,
};
static const struct regmap_bus *regmap_get_i2c_bus(struct i2c_client *i2c,
diff --git a/drivers/dma-buf/sw_sync.c b/drivers/dma-buf/sw_sync.c
index 81ba4eb34890..09d369306ee3 100644
--- a/drivers/dma-buf/sw_sync.c
+++ b/drivers/dma-buf/sw_sync.c
@@ -200,6 +200,7 @@ static const struct dma_fence_ops timeline_fence_ops = {
*/
static void sync_timeline_signal(struct sync_timeline *obj, unsigned int inc)
{
+ LIST_HEAD(signalled);
struct sync_pt *pt, *next;
trace_sync_timeline(obj);
@@ -212,21 +213,20 @@ static void sync_timeline_signal(struct sync_timeline *obj, unsigned int inc)
if (!timeline_fence_signaled(&pt->base))
break;
- list_del_init(&pt->link);
+ dma_fence_get(&pt->base);
+
+ list_move_tail(&pt->link, &signalled);
rb_erase(&pt->node, &obj->pt_tree);
- /*
- * A signal callback may release the last reference to this
- * fence, causing it to be freed. That operation has to be
- * last to avoid a use after free inside this loop, and must
- * be after we remove the fence from the timeline in order to
- * prevent deadlocking on timeline->lock inside
- * timeline_fence_release().
- */
dma_fence_signal_locked(&pt->base);
}
spin_unlock_irq(&obj->lock);
+
+ list_for_each_entry_safe(pt, next, &signalled, link) {
+ list_del_init(&pt->link);
+ dma_fence_put(&pt->base);
+ }
}
/**
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index e667bcf64bc7..70e446c2acf8 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -1502,15 +1502,15 @@ static int amdgpu_cs_wait_all_fences(struct amdgpu_device *adev,
continue;
r = dma_fence_wait_timeout(fence, true, timeout);
+ if (r > 0 && fence->error)
+ r = fence->error;
+
dma_fence_put(fence);
if (r < 0)
return r;
if (r == 0)
break;
-
- if (fence->error)
- return fence->error;
}
memset(wait, 0, sizeof(*wait));
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index ead221ccb93e..ddec675ba690 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -2529,7 +2529,9 @@ static void dcn10_wait_for_mpcc_disconnect(
if (pipe_ctx->stream_res.opp->mpcc_disconnect_pending[mpcc_inst]) {
struct hubp *hubp = get_hubp_by_inst(res_pool, mpcc_inst);
- res_pool->mpc->funcs->wait_for_idle(res_pool->mpc, mpcc_inst);
+ if (pipe_ctx->stream_res.tg &&
+ pipe_ctx->stream_res.tg->funcs->is_tg_enabled(pipe_ctx->stream_res.tg))
+ res_pool->mpc->funcs->wait_for_idle(res_pool->mpc, mpcc_inst);
pipe_ctx->stream_res.opp->mpcc_disconnect_pending[mpcc_inst] = false;
hubp->funcs->set_blank(hubp, true);
/*DC_LOG_ERROR(dc->ctx->logger,
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index 1ae31dbc61c6..5e61abb3dce5 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -265,7 +265,8 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data)
{
struct drm_radeon_cs *cs = data;
uint64_t *chunk_array_ptr;
- unsigned size, i;
+ u64 size;
+ unsigned i;
u32 ring = RADEON_CS_RING_GFX;
s32 priority = 0;
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index c0ba8d6f4978..a9d6f8acf70b 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -571,6 +571,7 @@
#define USB_DEVICE_ID_UGCI_FIGHTING 0x0030
#define USB_VENDOR_ID_HP 0x03f0
+#define USB_PRODUCT_ID_HP_ELITE_PRESENTER_MOUSE_464A 0x464a
#define USB_PRODUCT_ID_HP_LOGITECH_OEM_USB_OPTICAL_MOUSE_0A4A 0x0a4a
#define USB_PRODUCT_ID_HP_LOGITECH_OEM_USB_OPTICAL_MOUSE_0B4A 0x0b4a
#define USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE 0x134a
diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c
index 8de294aa3184..a2ab338166e6 100644
--- a/drivers/hid/hid-quirks.c
+++ b/drivers/hid/hid-quirks.c
@@ -98,6 +98,7 @@ static const struct hid_device_id hid_quirks[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD_A096), HID_QUIRK_NO_INIT_REPORTS },
{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD_A293), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_LOGITECH_OEM_USB_OPTICAL_MOUSE_0A4A), HID_QUIRK_ALWAYS_POLL },
+ { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_ELITE_PRESENTER_MOUSE_464A), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_LOGITECH_OEM_USB_OPTICAL_MOUSE_0B4A), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE_094A), HID_QUIRK_ALWAYS_POLL },
diff --git a/drivers/iio/Kconfig b/drivers/iio/Kconfig
index d08aeb41cd07..810e72e4e8b7 100644
--- a/drivers/iio/Kconfig
+++ b/drivers/iio/Kconfig
@@ -70,6 +70,7 @@ config IIO_TRIGGERED_EVENT
source "drivers/iio/accel/Kconfig"
source "drivers/iio/adc/Kconfig"
+source "drivers/iio/addac/Kconfig"
source "drivers/iio/afe/Kconfig"
source "drivers/iio/amplifiers/Kconfig"
source "drivers/iio/chemical/Kconfig"
diff --git a/drivers/iio/Makefile b/drivers/iio/Makefile
index cb5993251381..a60d0cbfe4cd 100644
--- a/drivers/iio/Makefile
+++ b/drivers/iio/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_IIO_TRIGGERED_EVENT) += industrialio-triggered-event.o
obj-y += accel/
obj-y += adc/
+obj-y += addac/
obj-y += afe/
obj-y += amplifiers/
obj-y += buffer/
diff --git a/drivers/iio/adc/stx104.c b/drivers/iio/adc/stx104.c
index 0662ca199eb0..49aeb76212fd 100644
--- a/drivers/iio/adc/stx104.c
+++ b/drivers/iio/adc/stx104.c
@@ -23,7 +23,9 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
+#include <linux/mutex.h>
#include <linux/spinlock.h>
+#include <linux/types.h>
#define STX104_OUT_CHAN(chan) { \
.type = IIO_VOLTAGE, \
@@ -52,14 +54,38 @@ static unsigned int num_stx104;
module_param_hw_array(base, uint, ioport, &num_stx104, 0);
MODULE_PARM_DESC(base, "Apex Embedded Systems STX104 base addresses");
+/**
+ * struct stx104_reg - device register structure
+ * @ssr_ad: Software Strobe Register and ADC Data
+ * @achan: ADC Channel
+ * @dio: Digital I/O
+ * @dac: DAC Channels
+ * @cir_asr: Clear Interrupts and ADC Status
+ * @acr: ADC Control
+ * @pccr_fsh: Pacer Clock Control and FIFO Status MSB
+ * @acfg: ADC Configuration
+ */
+struct stx104_reg {
+ u16 ssr_ad;
+ u8 achan;
+ u8 dio;
+ u16 dac[2];
+ u8 cir_asr;
+ u8 acr;
+ u8 pccr_fsh;
+ u8 acfg;
+};
+
/**
* struct stx104_iio - IIO device private data structure
+ * @lock: synchronization lock to prevent I/O race conditions
* @chan_out_states: channels' output states
- * @base: base port address of the IIO device
+ * @reg: I/O address offset for the device registers
*/
struct stx104_iio {
+ struct mutex lock;
unsigned int chan_out_states[STX104_NUM_OUT_CHAN];
- unsigned int base;
+ struct stx104_reg __iomem *reg;
};
/**
@@ -72,7 +98,7 @@ struct stx104_iio {
struct stx104_gpio {
struct gpio_chip chip;
spinlock_t lock;
- unsigned int base;
+ u8 __iomem *base;
unsigned int out_state;
};
@@ -80,6 +106,7 @@ static int stx104_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan, int *val, int *val2, long mask)
{
struct stx104_iio *const priv = iio_priv(indio_dev);
+ struct stx104_reg __iomem *const reg = priv->reg;
unsigned int adc_config;
int adbu;
int gain;
@@ -87,7 +114,7 @@ static int stx104_read_raw(struct iio_dev *indio_dev,
switch (mask) {
case IIO_CHAN_INFO_HARDWAREGAIN:
/* get gain configuration */
- adc_config = inb(priv->base + 11);
+ adc_config = ioread8(®->acfg);
gain = adc_config & 0x3;
*val = 1 << gain;
@@ -98,25 +125,31 @@ static int stx104_read_raw(struct iio_dev *indio_dev,
return IIO_VAL_INT;
}
+ mutex_lock(&priv->lock);
+
/* select ADC channel */
- outb(chan->channel | (chan->channel << 4), priv->base + 2);
+ iowrite8(chan->channel | (chan->channel << 4), ®->achan);
+
+ /* trigger ADC sample capture by writing to the 8-bit
+ * Software Strobe Register and wait for completion
+ */
+ iowrite8(0, ®->ssr_ad);
+ while (ioread8(®->cir_asr) & BIT(7));
- /* trigger ADC sample capture and wait for completion */
- outb(0, priv->base);
- while (inb(priv->base + 8) & BIT(7));
+ *val = ioread16(®->ssr_ad);
- *val = inw(priv->base);
+ mutex_unlock(&priv->lock);
return IIO_VAL_INT;
case IIO_CHAN_INFO_OFFSET:
/* get ADC bipolar/unipolar configuration */
- adc_config = inb(priv->base + 11);
+ adc_config = ioread8(®->acfg);
adbu = !(adc_config & BIT(2));
*val = -32768 * adbu;
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
/* get ADC bipolar/unipolar and gain configuration */
- adc_config = inb(priv->base + 11);
+ adc_config = ioread8(®->acfg);
adbu = !(adc_config & BIT(2));
gain = adc_config & 0x3;
@@ -138,16 +171,16 @@ static int stx104_write_raw(struct iio_dev *indio_dev,
/* Only four gain states (x1, x2, x4, x8) */
switch (val) {
case 1:
- outb(0, priv->base + 11);
+ iowrite8(0, &priv->reg->acfg);
break;
case 2:
- outb(1, priv->base + 11);
+ iowrite8(1, &priv->reg->acfg);
break;
case 4:
- outb(2, priv->base + 11);
+ iowrite8(2, &priv->reg->acfg);
break;
case 8:
- outb(3, priv->base + 11);
+ iowrite8(3, &priv->reg->acfg);
break;
default:
return -EINVAL;
@@ -160,9 +193,12 @@ static int stx104_write_raw(struct iio_dev *indio_dev,
if ((unsigned int)val > 65535)
return -EINVAL;
+ mutex_lock(&priv->lock);
+
priv->chan_out_states[chan->channel] = val;
- outw(val, priv->base + 4 + 2 * chan->channel);
+ iowrite16(val, &priv->reg->dac[chan->channel]);
+ mutex_unlock(&priv->lock);
return 0;
}
return -EINVAL;
@@ -230,7 +266,7 @@ static int stx104_gpio_get(struct gpio_chip *chip, unsigned int offset)
if (offset >= 4)
return -EINVAL;
- return !!(inb(stx104gpio->base) & BIT(offset));
+ return !!(ioread8(stx104gpio->base) & BIT(offset));
}
static int stx104_gpio_get_multiple(struct gpio_chip *chip, unsigned long *mask,
@@ -238,7 +274,7 @@ static int stx104_gpio_get_multiple(struct gpio_chip *chip, unsigned long *mask,
{
struct stx104_gpio *const stx104gpio = gpiochip_get_data(chip);
- *bits = inb(stx104gpio->base);
+ *bits = ioread8(stx104gpio->base);
return 0;
}
@@ -260,7 +296,7 @@ static void stx104_gpio_set(struct gpio_chip *chip, unsigned int offset,
else
stx104gpio->out_state &= ~mask;
- outb(stx104gpio->out_state, stx104gpio->base);
+ iowrite8(stx104gpio->out_state, stx104gpio->base);
spin_unlock_irqrestore(&stx104gpio->lock, flags);
}
@@ -287,7 +323,7 @@ static void stx104_gpio_set_multiple(struct gpio_chip *chip,
stx104gpio->out_state &= ~*mask;
stx104gpio->out_state |= *mask & *bits;
- outb(stx104gpio->out_state, stx104gpio->base);
+ iowrite8(stx104gpio->out_state, stx104gpio->base);
spin_unlock_irqrestore(&stx104gpio->lock, flags);
}
@@ -314,11 +350,16 @@ static int stx104_probe(struct device *dev, unsigned int id)
return -EBUSY;
}
+ priv = iio_priv(indio_dev);
+ priv->reg = devm_ioport_map(dev, base[id], STX104_EXTENT);
+ if (!priv->reg)
+ return -ENOMEM;
+
indio_dev->info = &stx104_info;
indio_dev->modes = INDIO_DIRECT_MODE;
/* determine if differential inputs */
- if (inb(base[id] + 8) & BIT(5)) {
+ if (ioread8(&priv->reg->cir_asr) & BIT(5)) {
indio_dev->num_channels = ARRAY_SIZE(stx104_channels_diff);
indio_dev->channels = stx104_channels_diff;
} else {
@@ -329,18 +370,17 @@ static int stx104_probe(struct device *dev, unsigned int id)
indio_dev->name = dev_name(dev);
indio_dev->dev.parent = dev;
- priv = iio_priv(indio_dev);
- priv->base = base[id];
+ mutex_init(&priv->lock);
/* configure device for software trigger operation */
- outb(0, base[id] + 9);
+ iowrite8(0, &priv->reg->acr);
/* initialize gain setting to x1 */
- outb(0, base[id] + 11);
+ iowrite8(0, &priv->reg->acfg);
/* initialize DAC output to 0V */
- outw(0, base[id] + 4);
- outw(0, base[id] + 6);
+ iowrite16(0, &priv->reg->dac[0]);
+ iowrite16(0, &priv->reg->dac[1]);
stx104gpio->chip.label = dev_name(dev);
stx104gpio->chip.parent = dev;
@@ -355,7 +395,7 @@ static int stx104_probe(struct device *dev, unsigned int id)
stx104gpio->chip.get_multiple = stx104_gpio_get_multiple;
stx104gpio->chip.set = stx104_gpio_set;
stx104gpio->chip.set_multiple = stx104_gpio_set_multiple;
- stx104gpio->base = base[id] + 3;
+ stx104gpio->base = &priv->reg->dio;
stx104gpio->out_state = 0x0;
spin_lock_init(&stx104gpio->lock);
diff --git a/drivers/iio/addac/Kconfig b/drivers/iio/addac/Kconfig
new file mode 100644
index 000000000000..2e64d7755d5e
--- /dev/null
+++ b/drivers/iio/addac/Kconfig
@@ -0,0 +1,8 @@
+#
+# ADC DAC drivers
+#
+# When adding new entries keep the list in alphabetical order
+
+menu "Analog to digital and digital to analog converters"
+
+endmenu
diff --git a/drivers/iio/addac/Makefile b/drivers/iio/addac/Makefile
new file mode 100644
index 000000000000..b888b9ee12da
--- /dev/null
+++ b/drivers/iio/addac/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for industrial I/O ADDAC drivers
+#
+
+# When adding new entries keep the list in alphabetical order
diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c
index f3985469c221..caebafed49bb 100644
--- a/drivers/irqchip/irq-mips-gic.c
+++ b/drivers/irqchip/irq-mips-gic.c
@@ -48,7 +48,7 @@ void __iomem *mips_gic_base;
DEFINE_PER_CPU_READ_MOSTLY(unsigned long[GIC_MAX_LONGS], pcpu_masks);
-static DEFINE_SPINLOCK(gic_lock);
+static DEFINE_RAW_SPINLOCK(gic_lock);
static struct irq_domain *gic_irq_domain;
static struct irq_domain *gic_ipi_domain;
static int gic_shared_intrs;
@@ -207,7 +207,7 @@ static int gic_set_type(struct irq_data *d, unsigned int type)
irq = GIC_HWIRQ_TO_SHARED(d->hwirq);
- spin_lock_irqsave(&gic_lock, flags);
+ raw_spin_lock_irqsave(&gic_lock, flags);
switch (type & IRQ_TYPE_SENSE_MASK) {
case IRQ_TYPE_EDGE_FALLING:
pol = GIC_POL_FALLING_EDGE;
@@ -247,7 +247,7 @@ static int gic_set_type(struct irq_data *d, unsigned int type)
else
irq_set_chip_handler_name_locked(d, &gic_level_irq_controller,
handle_level_irq, NULL);
- spin_unlock_irqrestore(&gic_lock, flags);
+ raw_spin_unlock_irqrestore(&gic_lock, flags);
return 0;
}
@@ -265,7 +265,7 @@ static int gic_set_affinity(struct irq_data *d, const struct cpumask *cpumask,
return -EINVAL;
/* Assumption : cpumask refers to a single CPU */
- spin_lock_irqsave(&gic_lock, flags);
+ raw_spin_lock_irqsave(&gic_lock, flags);
/* Re-route this IRQ */
write_gic_map_vp(irq, BIT(mips_cm_vp_id(cpu)));
@@ -276,7 +276,7 @@ static int gic_set_affinity(struct irq_data *d, const struct cpumask *cpumask,
set_bit(irq, per_cpu_ptr(pcpu_masks, cpu));
irq_data_update_effective_affinity(d, cpumask_of(cpu));
- spin_unlock_irqrestore(&gic_lock, flags);
+ raw_spin_unlock_irqrestore(&gic_lock, flags);
return IRQ_SET_MASK_OK;
}
@@ -354,12 +354,12 @@ static void gic_mask_local_irq_all_vpes(struct irq_data *d)
cd = irq_data_get_irq_chip_data(d);
cd->mask = false;
- spin_lock_irqsave(&gic_lock, flags);
+ raw_spin_lock_irqsave(&gic_lock, flags);
for_each_online_cpu(cpu) {
write_gic_vl_other(mips_cm_vp_id(cpu));
write_gic_vo_rmask(BIT(intr));
}
- spin_unlock_irqrestore(&gic_lock, flags);
+ raw_spin_unlock_irqrestore(&gic_lock, flags);
}
static void gic_unmask_local_irq_all_vpes(struct irq_data *d)
@@ -372,32 +372,45 @@ static void gic_unmask_local_irq_all_vpes(struct irq_data *d)
cd = irq_data_get_irq_chip_data(d);
cd->mask = true;
- spin_lock_irqsave(&gic_lock, flags);
+ raw_spin_lock_irqsave(&gic_lock, flags);
for_each_online_cpu(cpu) {
write_gic_vl_other(mips_cm_vp_id(cpu));
write_gic_vo_smask(BIT(intr));
}
- spin_unlock_irqrestore(&gic_lock, flags);
+ raw_spin_unlock_irqrestore(&gic_lock, flags);
}
-static void gic_all_vpes_irq_cpu_online(struct irq_data *d)
+static void gic_all_vpes_irq_cpu_online(void)
{
- struct gic_all_vpes_chip_data *cd;
- unsigned int intr;
+ static const unsigned int local_intrs[] = {
+ GIC_LOCAL_INT_TIMER,
+ GIC_LOCAL_INT_PERFCTR,
+ GIC_LOCAL_INT_FDC,
+ };
+ unsigned long flags;
+ int i;
- intr = GIC_HWIRQ_TO_LOCAL(d->hwirq);
- cd = irq_data_get_irq_chip_data(d);
+ raw_spin_lock_irqsave(&gic_lock, flags);
- write_gic_vl_map(mips_gic_vx_map_reg(intr), cd->map);
- if (cd->mask)
- write_gic_vl_smask(BIT(intr));
+ for (i = 0; i < ARRAY_SIZE(local_intrs); i++) {
+ unsigned int intr = local_intrs[i];
+ struct gic_all_vpes_chip_data *cd;
+
+ if (!gic_local_irq_is_routable(intr))
+ continue;
+ cd = &gic_all_vpes_chip_data[intr];
+ write_gic_vl_map(mips_gic_vx_map_reg(intr), cd->map);
+ if (cd->mask)
+ write_gic_vl_smask(BIT(intr));
+ }
+
+ raw_spin_unlock_irqrestore(&gic_lock, flags);
}
static struct irq_chip gic_all_vpes_local_irq_controller = {
.name = "MIPS GIC Local",
.irq_mask = gic_mask_local_irq_all_vpes,
.irq_unmask = gic_unmask_local_irq_all_vpes,
- .irq_cpu_online = gic_all_vpes_irq_cpu_online,
};
static void __gic_irq_dispatch(void)
@@ -421,11 +434,11 @@ static int gic_shared_irq_domain_map(struct irq_domain *d, unsigned int virq,
data = irq_get_irq_data(virq);
- spin_lock_irqsave(&gic_lock, flags);
+ raw_spin_lock_irqsave(&gic_lock, flags);
write_gic_map_pin(intr, GIC_MAP_PIN_MAP_TO_PIN | gic_cpu_pin);
write_gic_map_vp(intr, BIT(mips_cm_vp_id(cpu)));
irq_data_update_effective_affinity(data, cpumask_of(cpu));
- spin_unlock_irqrestore(&gic_lock, flags);
+ raw_spin_unlock_irqrestore(&gic_lock, flags);
return 0;
}
@@ -476,6 +489,10 @@ static int gic_irq_domain_map(struct irq_domain *d, unsigned int virq,
intr = GIC_HWIRQ_TO_LOCAL(hwirq);
map = GIC_MAP_PIN_MAP_TO_PIN | gic_cpu_pin;
+ /*
+ * If adding support for more per-cpu interrupts, keep the the
+ * array in gic_all_vpes_irq_cpu_online() in sync.
+ */
switch (intr) {
case GIC_LOCAL_INT_TIMER:
/* CONFIG_MIPS_CMP workaround (see __gic_init) */
@@ -514,12 +531,12 @@ static int gic_irq_domain_map(struct irq_domain *d, unsigned int virq,
if (!gic_local_irq_is_routable(intr))
return -EPERM;
- spin_lock_irqsave(&gic_lock, flags);
+ raw_spin_lock_irqsave(&gic_lock, flags);
for_each_online_cpu(cpu) {
write_gic_vl_other(mips_cm_vp_id(cpu));
write_gic_vo_map(mips_gic_vx_map_reg(intr), map);
}
- spin_unlock_irqrestore(&gic_lock, flags);
+ raw_spin_unlock_irqrestore(&gic_lock, flags);
return 0;
}
@@ -662,8 +679,8 @@ static int gic_cpu_startup(unsigned int cpu)
/* Clear all local IRQ masks (ie. disable all local interrupts) */
write_gic_vl_rmask(~0);
- /* Invoke irq_cpu_online callbacks to enable desired interrupts */
- irq_cpu_online();
+ /* Enable desired interrupts */
+ gic_all_vpes_irq_cpu_online();
return 0;
}
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index 0a4e440948f0..234464c1c050 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -29,11 +29,11 @@
#define DEFAULT_BUFFER_SECTORS 128
#define DEFAULT_JOURNAL_WATERMARK 50
#define DEFAULT_SYNC_MSEC 10000
-#define DEFAULT_MAX_JOURNAL_SECTORS 131072
+#define DEFAULT_MAX_JOURNAL_SECTORS (IS_ENABLED(CONFIG_64BIT) ? 131072 : 8192)
#define MIN_LOG2_INTERLEAVE_SECTORS 3
#define MAX_LOG2_INTERLEAVE_SECTORS 31
#define METADATA_WORKQUEUE_MAX_ACTIVE 16
-#define RECALC_SECTORS 8192
+#define RECALC_SECTORS (IS_ENABLED(CONFIG_64BIT) ? 32768 : 2048)
#define RECALC_WRITE_SUPER 16
/*
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
index 6ad408514a99..193a1f800a22 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
@@ -766,6 +766,8 @@ static int vb2ops_venc_queue_setup(struct vb2_queue *vq,
return -EINVAL;
if (*nplanes) {
+ if (*nplanes != q_data->fmt->num_planes)
+ return -EINVAL;
for (i = 0; i < *nplanes; i++)
if (sizes[i] < q_data->sizeimage[i])
return -EINVAL;
diff --git a/drivers/media/platform/mtk-vpu/mtk_vpu.c b/drivers/media/platform/mtk-vpu/mtk_vpu.c
index 9b57fb285728..46ec1f2699aa 100644
--- a/drivers/media/platform/mtk-vpu/mtk_vpu.c
+++ b/drivers/media/platform/mtk-vpu/mtk_vpu.c
@@ -537,16 +537,18 @@ static int load_requested_vpu(struct mtk_vpu *vpu,
int vpu_load_firmware(struct platform_device *pdev)
{
struct mtk_vpu *vpu;
- struct device *dev = &pdev->dev;
+ struct device *dev;
struct vpu_run *run;
const struct firmware *vpu_fw = NULL;
int ret;
if (!pdev) {
- dev_err(dev, "VPU platform device is invalid\n");
+ pr_err("VPU platform device is invalid\n");
return -EINVAL;
}
+ dev = &pdev->dev;
+
vpu = platform_get_drvdata(pdev);
run = &vpu->run;
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index 88114e576efb..039058fe6a41 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -1976,15 +1976,16 @@ static void mmc_blk_mq_poll_completion(struct mmc_queue *mq,
mmc_blk_urgent_bkops(mq, mqrq);
}
-static void mmc_blk_mq_dec_in_flight(struct mmc_queue *mq, struct request *req)
+static void mmc_blk_mq_dec_in_flight(struct mmc_queue *mq,
+ struct request_queue *q,
+ enum mmc_issue_type issue_type)
{
- struct request_queue *q = req->q;
unsigned long flags;
bool put_card;
spin_lock_irqsave(q->queue_lock, flags);
- mq->in_flight[mmc_issue_type(mq, req)] -= 1;
+ mq->in_flight[issue_type] -= 1;
put_card = (mmc_tot_in_flight(mq) == 0);
@@ -1996,9 +1997,11 @@ static void mmc_blk_mq_dec_in_flight(struct mmc_queue *mq, struct request *req)
static void mmc_blk_mq_post_req(struct mmc_queue *mq, struct request *req)
{
+ enum mmc_issue_type issue_type = mmc_issue_type(mq, req);
struct mmc_queue_req *mqrq = req_to_mmc_queue_req(req);
struct mmc_request *mrq = &mqrq->brq.mrq;
struct mmc_host *host = mq->card->host;
+ struct request_queue *q = req->q;
mmc_post_req(host, mrq, 0);
@@ -2011,7 +2014,7 @@ static void mmc_blk_mq_post_req(struct mmc_queue *mq, struct request *req)
else
blk_mq_complete_request(req);
- mmc_blk_mq_dec_in_flight(mq, req);
+ mmc_blk_mq_dec_in_flight(mq, q, issue_type);
}
void mmc_blk_mq_recovery(struct mmc_queue *mq)
diff --git a/drivers/mmc/host/bcm2835.c b/drivers/mmc/host/bcm2835.c
index 5301302fb531..2b3ff4be7ae0 100644
--- a/drivers/mmc/host/bcm2835.c
+++ b/drivers/mmc/host/bcm2835.c
@@ -1417,9 +1417,8 @@ static int bcm2835_probe(struct platform_device *pdev)
host->max_clk = clk_get_rate(clk);
host->irq = platform_get_irq(pdev, 0);
- if (host->irq <= 0) {
- dev_err(dev, "get IRQ failed\n");
- ret = -EINVAL;
+ if (host->irq < 0) {
+ ret = host->irq;
goto err;
}
diff --git a/drivers/mmc/host/jz4740_mmc.c b/drivers/mmc/host/jz4740_mmc.c
index 864338e308e2..b8fb518c6db0 100644
--- a/drivers/mmc/host/jz4740_mmc.c
+++ b/drivers/mmc/host/jz4740_mmc.c
@@ -1060,7 +1060,6 @@ static int jz4740_mmc_probe(struct platform_device* pdev)
host->irq = platform_get_irq(pdev, 0);
if (host->irq < 0) {
ret = host->irq;
- dev_err(&pdev->dev, "Failed to get platform irq: %d\n", ret);
goto err_free_host;
}
diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c
index dba98c2886f2..28f07d410043 100644
--- a/drivers/mmc/host/meson-gx-mmc.c
+++ b/drivers/mmc/host/meson-gx-mmc.c
@@ -26,7 +26,6 @@
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/ioport.h>
-#include <linux/spinlock.h>
#include <linux/dma-mapping.h>
#include <linux/mmc/host.h>
#include <linux/mmc/mmc.h>
@@ -159,7 +158,6 @@ struct meson_host {
struct mmc_host *mmc;
struct mmc_command *cmd;
- spinlock_t lock;
void __iomem *regs;
struct clk *core_clk;
struct clk *mmc_clk;
@@ -1042,8 +1040,6 @@ static irqreturn_t meson_mmc_irq(int irq, void *dev_id)
if (WARN_ON(!host) || WARN_ON(!host->cmd))
return IRQ_NONE;
- spin_lock(&host->lock);
-
cmd = host->cmd;
data = cmd->data;
cmd->error = 0;
@@ -1071,11 +1067,8 @@ static irqreturn_t meson_mmc_irq(int irq, void *dev_id)
if (status & (IRQ_END_OF_CHAIN | IRQ_RESP_STATUS)) {
if (data && !cmd->error)
data->bytes_xfered = data->blksz * data->blocks;
- if (meson_mmc_bounce_buf_read(data) ||
- meson_mmc_get_next_command(cmd))
- ret = IRQ_WAKE_THREAD;
- else
- ret = IRQ_HANDLED;
+
+ return IRQ_WAKE_THREAD;
}
out:
@@ -1090,10 +1083,6 @@ static irqreturn_t meson_mmc_irq(int irq, void *dev_id)
writel(start, host->regs + SD_EMMC_START);
}
- if (ret == IRQ_HANDLED)
- meson_mmc_request_done(host->mmc, cmd->mrq);
-
- spin_unlock(&host->lock);
return ret;
}
@@ -1246,8 +1235,6 @@ static int meson_mmc_probe(struct platform_device *pdev)
host->dev = &pdev->dev;
dev_set_drvdata(&pdev->dev, host);
- spin_lock_init(&host->lock);
-
/* Get regulators and the supported OCR mask */
host->vqmmc_enabled = false;
ret = mmc_regulator_get_supply(mmc);
@@ -1285,7 +1272,6 @@ static int meson_mmc_probe(struct platform_device *pdev)
host->irq = platform_get_irq(pdev, 0);
if (host->irq <= 0) {
- dev_err(&pdev->dev, "failed to get interrupt resource.\n");
ret = -EINVAL;
goto free_host;
}
diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index 6215feb976e3..a0e8ac912445 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c
@@ -1017,10 +1017,8 @@ static int mxcmci_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
irq = platform_get_irq(pdev, 0);
- if (irq < 0) {
- dev_err(&pdev->dev, "failed to get IRQ: %d\n", irq);
+ if (irq < 0)
return irq;
- }
mmc = mmc_alloc_host(sizeof(*host), &pdev->dev);
if (!mmc)
diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c
index eabfcb5bbaff..a2c44cc8e2e7 100644
--- a/drivers/mmc/host/renesas_sdhi_core.c
+++ b/drivers/mmc/host/renesas_sdhi_core.c
@@ -155,6 +155,66 @@ static unsigned int renesas_sdhi_clk_update(struct tmio_mmc_host *host,
return ret == 0 ? best_freq : clk_get_rate(priv->clk);
}
+static void renesas_sdhi_clk_start(struct tmio_mmc_host *host)
+{
+ sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, CLK_CTL_SCLKEN |
+ sd_ctrl_read16(host, CTL_SD_CARD_CLK_CTL));
+
+ /* HW engineers overrode docs: no sleep needed on R-Car2+ */
+ if (!(host->pdata->flags & TMIO_MMC_MIN_RCAR2))
+ usleep_range(10000, 11000);
+}
+
+static void renesas_sdhi_clk_stop(struct tmio_mmc_host *host)
+{
+ sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, ~CLK_CTL_SCLKEN &
+ sd_ctrl_read16(host, CTL_SD_CARD_CLK_CTL));
+
+ /* HW engineers overrode docs: no sleep needed on R-Car2+ */
+ if (!(host->pdata->flags & TMIO_MMC_MIN_RCAR2))
+ usleep_range(10000, 11000);
+}
+
+static void renesas_sdhi_set_clock(struct tmio_mmc_host *host,
+ unsigned int new_clock)
+{
+ u32 clk = 0, clock;
+
+ if (new_clock == 0) {
+ renesas_sdhi_clk_stop(host);
+ return;
+ }
+ /*
+ * Both HS400 and HS200/SD104 set 200MHz, but some devices need to
+ * set 400MHz to distinguish the CPG settings in HS400.
+ */
+ if (host->mmc->ios.timing == MMC_TIMING_MMC_HS400 &&
+ host->pdata->flags & TMIO_MMC_HAVE_4TAP_HS400 &&
+ new_clock == 200000000)
+ new_clock = 400000000;
+
+ clock = renesas_sdhi_clk_update(host, new_clock) / 512;
+
+ for (clk = 0x80000080; new_clock >= (clock << 1); clk >>= 1)
+ clock <<= 1;
+
+ /* 1/1 clock is option */
+ if ((host->pdata->flags & TMIO_MMC_CLK_ACTUAL) && ((clk >> 22) & 0x1)) {
+ if (!(host->mmc->ios.timing == MMC_TIMING_MMC_HS400))
+ clk |= 0xff;
+ else
+ clk &= ~0xff;
+ }
+
+ sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, ~CLK_CTL_SCLKEN &
+ sd_ctrl_read16(host, CTL_SD_CARD_CLK_CTL));
+ sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, clk & CLK_CTL_DIV_MASK);
+ if (!(host->pdata->flags & TMIO_MMC_MIN_RCAR2))
+ usleep_range(10000, 11000);
+
+ renesas_sdhi_clk_start(host);
+}
+
static void renesas_sdhi_clk_disable(struct tmio_mmc_host *host)
{
struct renesas_sdhi *priv = host_to_priv(host);
@@ -621,8 +681,8 @@ int renesas_sdhi_probe(struct platform_device *pdev,
host->write16_hook = renesas_sdhi_write16_hook;
host->clk_enable = renesas_sdhi_clk_enable;
- host->clk_update = renesas_sdhi_clk_update;
host->clk_disable = renesas_sdhi_clk_disable;
+ host->set_clock = renesas_sdhi_set_clock;
host->multi_io_quirk = renesas_sdhi_multi_io_quirk;
host->dma_ops = dma_ops;
diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c
index f77493604312..ca2239ea6d96 100644
--- a/drivers/mmc/host/s3cmci.c
+++ b/drivers/mmc/host/s3cmci.c
@@ -1661,7 +1661,6 @@ static int s3cmci_probe(struct platform_device *pdev)
host->irq = platform_get_irq(pdev, 0);
if (host->irq <= 0) {
- dev_err(&pdev->dev, "failed to get interrupt resource.\n");
ret = -EINVAL;
goto probe_iounmap;
}
diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
index 4970cd40813b..feede31fab47 100644
--- a/drivers/mmc/host/sdhci-msm.c
+++ b/drivers/mmc/host/sdhci-msm.c
@@ -1914,8 +1914,6 @@ static int sdhci_msm_probe(struct platform_device *pdev)
/* Setup IRQ for handling power/voltage tasks with PMIC */
msm_host->pwr_irq = platform_get_irq_byname(pdev, "pwr_irq");
if (msm_host->pwr_irq < 0) {
- dev_err(&pdev->dev, "Get pwr_irq failed (%d)\n",
- msm_host->pwr_irq);
ret = msm_host->pwr_irq;
goto clk_disable;
}
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index 02bea6159d79..ac380c54bd17 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -131,7 +131,6 @@ struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev,
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
- dev_err(&pdev->dev, "failed to get IRQ number\n");
ret = irq;
goto err;
}
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index 9ef89d00970e..936d88a33a67 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -493,10 +493,8 @@ static int sdhci_s3c_probe(struct platform_device *pdev)
}
irq = platform_get_irq(pdev, 0);
- if (irq < 0) {
- dev_err(dev, "no irq specified\n");
+ if (irq < 0)
return irq;
- }
host = sdhci_alloc_host(dev, sizeof(struct sdhci_s3c));
if (IS_ERR(host)) {
diff --git a/drivers/mmc/host/sdhci_f_sdh30.c b/drivers/mmc/host/sdhci_f_sdh30.c
index ca9e05440da1..ee8160d6015e 100644
--- a/drivers/mmc/host/sdhci_f_sdh30.c
+++ b/drivers/mmc/host/sdhci_f_sdh30.c
@@ -122,10 +122,8 @@ static int sdhci_f_sdh30_probe(struct platform_device *pdev)
u32 reg = 0;
irq = platform_get_irq(pdev, 0);
- if (irq < 0) {
- dev_err(dev, "%s: no irq specified\n", __func__);
+ if (irq < 0)
return irq;
- }
host = sdhci_alloc_host(dev, sizeof(struct f_sdhost_priv));
if (IS_ERR(host))
diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
index 757eb175611f..bc3f8a1df10c 100644
--- a/drivers/mmc/host/sunxi-mmc.c
+++ b/drivers/mmc/host/sunxi-mmc.c
@@ -1308,8 +1308,8 @@ static int sunxi_mmc_resource_request(struct sunxi_mmc_host *host,
return ret;
host->irq = platform_get_irq(pdev, 0);
- if (host->irq <= 0) {
- ret = -EINVAL;
+ if (host->irq < 0) {
+ ret = host->irq;
goto error_disable_mmc;
}
diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c
index 43a2ea5cff24..b031a776c12e 100644
--- a/drivers/mmc/host/tmio_mmc.c
+++ b/drivers/mmc/host/tmio_mmc.c
@@ -13,6 +13,7 @@
* published by the Free Software Foundation.
*/
+#include <linux/delay.h>
#include <linux/device.h>
#include <linux/mfd/core.h>
#include <linux/mfd/tmio.h>
@@ -23,6 +24,52 @@
#include "tmio_mmc.h"
+static void tmio_mmc_clk_start(struct tmio_mmc_host *host)
+{
+ sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, CLK_CTL_SCLKEN |
+ sd_ctrl_read16(host, CTL_SD_CARD_CLK_CTL));
+
+ usleep_range(10000, 11000);
+ sd_ctrl_write16(host, CTL_CLK_AND_WAIT_CTL, 0x0100);
+ usleep_range(10000, 11000);
+}
+
+static void tmio_mmc_clk_stop(struct tmio_mmc_host *host)
+{
+ sd_ctrl_write16(host, CTL_CLK_AND_WAIT_CTL, 0x0000);
+ usleep_range(10000, 11000);
+
+ sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, ~CLK_CTL_SCLKEN &
+ sd_ctrl_read16(host, CTL_SD_CARD_CLK_CTL));
+
+ usleep_range(10000, 11000);
+}
+
+static void tmio_mmc_set_clock(struct tmio_mmc_host *host,
+ unsigned int new_clock)
+{
+ u32 clk = 0, clock;
+
+ if (new_clock == 0) {
+ tmio_mmc_clk_stop(host);
+ return;
+ }
+
+ clock = host->mmc->f_min;
+
+ for (clk = 0x80000080; new_clock >= (clock << 1); clk >>= 1)
+ clock <<= 1;
+
+ host->pdata->set_clk_div(host->pdev, (clk >> 22) & 1);
+
+ sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, ~CLK_CTL_SCLKEN &
+ sd_ctrl_read16(host, CTL_SD_CARD_CLK_CTL));
+ sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, clk & CLK_CTL_DIV_MASK);
+ usleep_range(10000, 11000);
+
+ tmio_mmc_clk_start(host);
+}
+
#ifdef CONFIG_PM_SLEEP
static int tmio_mmc_suspend(struct device *dev)
{
@@ -100,6 +147,7 @@ static int tmio_mmc_probe(struct platform_device *pdev)
/* SD control register space size is 0x200, 0x400 for bus_shift=1 */
host->bus_shift = resource_size(res) >> 10;
+ host->set_clock = tmio_mmc_set_clock;
host->mmc->f_max = pdata->hclk;
host->mmc->f_min = pdata->hclk / 512;
diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
index 7c40a7e1fea1..358aa258cb15 100644
--- a/drivers/mmc/host/tmio_mmc.h
+++ b/drivers/mmc/host/tmio_mmc.h
@@ -133,7 +133,6 @@ struct tmio_mmc_host {
/* Callbacks for clock / power control */
void (*set_pwr)(struct platform_device *host, int state);
- void (*set_clk_div)(struct platform_device *host, int state);
/* pio related stuff */
struct scatterlist *sg_ptr;
@@ -170,10 +169,9 @@ struct tmio_mmc_host {
/* Mandatory callback */
int (*clk_enable)(struct tmio_mmc_host *host);
+ void (*set_clock)(struct tmio_mmc_host *host, unsigned int clock);
/* Optional callbacks */
- unsigned int (*clk_update)(struct tmio_mmc_host *host,
- unsigned int new_clock);
void (*clk_disable)(struct tmio_mmc_host *host);
int (*multi_io_quirk)(struct mmc_card *card,
unsigned int direction, int blk_size);
diff --git a/drivers/mmc/host/tmio_mmc_core.c b/drivers/mmc/host/tmio_mmc_core.c
index 33c9ca8f14a9..f819757e125e 100644
--- a/drivers/mmc/host/tmio_mmc_core.c
+++ b/drivers/mmc/host/tmio_mmc_core.c
@@ -161,83 +161,6 @@ static void tmio_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable)
}
}
-static void tmio_mmc_clk_start(struct tmio_mmc_host *host)
-{
- sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, CLK_CTL_SCLKEN |
- sd_ctrl_read16(host, CTL_SD_CARD_CLK_CTL));
-
- /* HW engineers overrode docs: no sleep needed on R-Car2+ */
- if (!(host->pdata->flags & TMIO_MMC_MIN_RCAR2))
- usleep_range(10000, 11000);
-
- if (host->pdata->flags & TMIO_MMC_HAVE_HIGH_REG) {
- sd_ctrl_write16(host, CTL_CLK_AND_WAIT_CTL, 0x0100);
- usleep_range(10000, 11000);
- }
-}
-
-static void tmio_mmc_clk_stop(struct tmio_mmc_host *host)
-{
- if (host->pdata->flags & TMIO_MMC_HAVE_HIGH_REG) {
- sd_ctrl_write16(host, CTL_CLK_AND_WAIT_CTL, 0x0000);
- usleep_range(10000, 11000);
- }
-
- sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, ~CLK_CTL_SCLKEN &
- sd_ctrl_read16(host, CTL_SD_CARD_CLK_CTL));
-
- /* HW engineers overrode docs: no sleep needed on R-Car2+ */
- if (!(host->pdata->flags & TMIO_MMC_MIN_RCAR2))
- usleep_range(10000, 11000);
-}
-
-static void tmio_mmc_set_clock(struct tmio_mmc_host *host,
- unsigned int new_clock)
-{
- u32 clk = 0, clock;
-
- if (new_clock == 0) {
- tmio_mmc_clk_stop(host);
- return;
- }
- /*
- * Both HS400 and HS200/SD104 set 200MHz, but some devices need to
- * set 400MHz to distinguish the CPG settings in HS400.
- */
- if (host->mmc->ios.timing == MMC_TIMING_MMC_HS400 &&
- host->pdata->flags & TMIO_MMC_HAVE_4TAP_HS400 &&
- new_clock == 200000000)
- new_clock = 400000000;
-
- if (host->clk_update)
- clock = host->clk_update(host, new_clock) / 512;
- else
- clock = host->mmc->f_min;
-
- for (clk = 0x80000080; new_clock >= (clock << 1); clk >>= 1)
- clock <<= 1;
-
- /* 1/1 clock is option */
- if ((host->pdata->flags & TMIO_MMC_CLK_ACTUAL) &&
- ((clk >> 22) & 0x1)) {
- if (!(host->mmc->ios.timing == MMC_TIMING_MMC_HS400))
- clk |= 0xff;
- else
- clk &= ~0xff;
- }
-
- if (host->set_clk_div)
- host->set_clk_div(host->pdev, (clk >> 22) & 1);
-
- sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, ~CLK_CTL_SCLKEN &
- sd_ctrl_read16(host, CTL_SD_CARD_CLK_CTL));
- sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, clk & CLK_CTL_DIV_MASK);
- if (!(host->pdata->flags & TMIO_MMC_MIN_RCAR2))
- usleep_range(10000, 11000);
-
- tmio_mmc_clk_start(host);
-}
-
static void tmio_mmc_reset(struct tmio_mmc_host *host)
{
/* FIXME - should we set stop clock reg here */
@@ -1051,15 +974,15 @@ static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
switch (ios->power_mode) {
case MMC_POWER_OFF:
tmio_mmc_power_off(host);
- tmio_mmc_clk_stop(host);
+ host->set_clock(host, 0);
break;
case MMC_POWER_UP:
tmio_mmc_power_on(host, ios->vdd);
- tmio_mmc_set_clock(host, ios->clock);
+ host->set_clock(host, ios->clock);
tmio_mmc_set_bus_width(host, ios->bus_width);
break;
case MMC_POWER_ON:
- tmio_mmc_set_clock(host, ios->clock);
+ host->set_clock(host, ios->clock);
tmio_mmc_set_bus_width(host, ios->bus_width);
break;
}
@@ -1245,7 +1168,7 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host)
int ret;
/*
- * Check the sanity of mmc->f_min to prevent tmio_mmc_set_clock() from
+ * Check the sanity of mmc->f_min to prevent host->set_clock() from
* looping forever...
*/
if (mmc->f_min == 0)
@@ -1255,7 +1178,6 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host)
_host->write16_hook = NULL;
_host->set_pwr = pdata->set_pwr;
- _host->set_clk_div = pdata->set_clk_div;
ret = tmio_mmc_init_ocr(_host);
if (ret < 0)
@@ -1318,7 +1240,7 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host)
if (pdata->flags & TMIO_MMC_SDIO_IRQ)
_host->sdio_irq_mask = TMIO_SDIO_MASK_ALL;
- tmio_mmc_clk_stop(_host);
+ _host->set_clock(_host, 0);
tmio_mmc_reset(_host);
_host->sdcard_irq_mask = sd_ctrl_read16_and_16_as_32(_host, CTL_IRQ_MASK);
@@ -1402,7 +1324,7 @@ int tmio_mmc_host_runtime_suspend(struct device *dev)
tmio_mmc_disable_mmc_irqs(host, TMIO_MASK_ALL);
if (host->clk_cache)
- tmio_mmc_clk_stop(host);
+ host->set_clock(host, 0);
tmio_mmc_clk_disable(host);
@@ -1423,7 +1345,7 @@ int tmio_mmc_host_runtime_resume(struct device *dev)
tmio_mmc_clk_enable(host);
if (host->clk_cache)
- tmio_mmc_set_clock(host, host->clk_cache);
+ host->set_clock(host, host->clk_cache);
if (host->native_hotplug)
tmio_mmc_enable_mmc_irqs(host,
diff --git a/drivers/mmc/host/wbsd.c b/drivers/mmc/host/wbsd.c
index 9b15431d961c..1df3ea9e5d6f 100644
--- a/drivers/mmc/host/wbsd.c
+++ b/drivers/mmc/host/wbsd.c
@@ -1713,8 +1713,6 @@ static int wbsd_init(struct device *dev, int base, int irq, int dma,
wbsd_release_resources(host);
wbsd_free_mmc(dev);
-
- mmc_free_host(mmc);
return ret;
}
diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index 3fc439d92445..e03f4883858a 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -671,10 +671,10 @@ static struct slave *rlb_arp_xmit(struct sk_buff *skb, struct bonding *bond)
return NULL;
arp = (struct arp_pkt *)skb_network_header(skb);
- /* Don't modify or load balance ARPs that do not originate locally
- * (e.g.,arrive via a bridge).
+ /* Don't modify or load balance ARPs that do not originate
+ * from the bond itself or a VLAN directly above the bond.
*/
- if (!bond_slave_has_mac_rx(bond, arp->mac_src))
+ if (!bond_slave_has_mac_rcu(bond, arp->mac_src))
return NULL;
if (arp->op_code == htons(ARPOP_REPLY)) {
diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c
index 75a1915d95aa..23997f1c2619 100644
--- a/drivers/net/ethernet/ibm/ibmveth.c
+++ b/drivers/net/ethernet/ibm/ibmveth.c
@@ -209,7 +209,7 @@ static inline void ibmveth_flush_buffer(void *addr, unsigned long length)
unsigned long offset;
for (offset = 0; offset < length; offset += SMP_CACHE_BYTES)
- asm("dcbfl %0,%1" :: "b" (addr), "r" (offset));
+ asm("dcbf %0,%1,1" :: "b" (addr), "r" (offset));
}
/* replenish the buffers for a pool. note that we don't need to
diff --git a/drivers/net/ethernet/intel/i40e/i40e_nvm.c b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
index 0299e5bbb902..10e9e60f6cf7 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_nvm.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
@@ -210,11 +210,11 @@ static i40e_status i40e_read_nvm_word_srctl(struct i40e_hw *hw, u16 offset,
* @hw: pointer to the HW structure.
* @module_pointer: module pointer location in words from the NVM beginning
* @offset: offset in words from module start
- * @words: number of words to write
- * @data: buffer with words to write to the Shadow RAM
+ * @words: number of words to read
+ * @data: buffer with words to read to the Shadow RAM
* @last_command: tells the AdminQ that this is the last command
*
- * Writes a 16 bit words buffer to the Shadow RAM using the admin command.
+ * Reads a 16 bit words buffer to the Shadow RAM using the admin command.
**/
static i40e_status i40e_read_nvm_aq(struct i40e_hw *hw,
u8 module_pointer, u32 offset,
@@ -234,18 +234,18 @@ static i40e_status i40e_read_nvm_aq(struct i40e_hw *hw,
*/
if ((offset + words) > hw->nvm.sr_size)
i40e_debug(hw, I40E_DEBUG_NVM,
- "NVM write error: offset %d beyond Shadow RAM limit %d\n",
+ "NVM read error: offset %d beyond Shadow RAM limit %d\n",
(offset + words), hw->nvm.sr_size);
else if (words > I40E_SR_SECTOR_SIZE_IN_WORDS)
- /* We can write only up to 4KB (one sector), in one AQ write */
+ /* We can read only up to 4KB (one sector), in one AQ write */
i40e_debug(hw, I40E_DEBUG_NVM,
- "NVM write fail error: tried to write %d words, limit is %d.\n",
+ "NVM read fail error: tried to read %d words, limit is %d.\n",
words, I40E_SR_SECTOR_SIZE_IN_WORDS);
else if (((offset + (words - 1)) / I40E_SR_SECTOR_SIZE_IN_WORDS)
!= (offset / I40E_SR_SECTOR_SIZE_IN_WORDS))
- /* A single write cannot spread over two sectors */
+ /* A single read cannot spread over two sectors */
i40e_debug(hw, I40E_DEBUG_NVM,
- "NVM write error: cannot spread over two sectors in a single write offset=%d words=%d\n",
+ "NVM read error: cannot spread over two sectors in a single read offset=%d words=%d\n",
offset, words);
else
ret_code = i40e_aq_read_nvm(hw, module_pointer,
diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c
index 29ced6b74d36..be2e743e65de 100644
--- a/drivers/net/ethernet/intel/igb/igb_ptp.c
+++ b/drivers/net/ethernet/intel/igb/igb_ptp.c
@@ -1181,18 +1181,6 @@ void igb_ptp_init(struct igb_adapter *adapter)
return;
}
- spin_lock_init(&adapter->tmreg_lock);
- INIT_WORK(&adapter->ptp_tx_work, igb_ptp_tx_work);
-
- if (adapter->ptp_flags & IGB_PTP_OVERFLOW_CHECK)
- INIT_DELAYED_WORK(&adapter->ptp_overflow_work,
- igb_ptp_overflow_check);
-
- adapter->tstamp_config.rx_filter = HWTSTAMP_FILTER_NONE;
- adapter->tstamp_config.tx_type = HWTSTAMP_TX_OFF;
-
- igb_ptp_reset(adapter);
-
adapter->ptp_clock = ptp_clock_register(&adapter->ptp_caps,
&adapter->pdev->dev);
if (IS_ERR(adapter->ptp_clock)) {
@@ -1202,6 +1190,18 @@ void igb_ptp_init(struct igb_adapter *adapter)
dev_info(&adapter->pdev->dev, "added PHC on %s\n",
adapter->netdev->name);
adapter->ptp_flags |= IGB_PTP_ENABLED;
+
+ spin_lock_init(&adapter->tmreg_lock);
+ INIT_WORK(&adapter->ptp_tx_work, igb_ptp_tx_work);
+
+ if (adapter->ptp_flags & IGB_PTP_OVERFLOW_CHECK)
+ INIT_DELAYED_WORK(&adapter->ptp_overflow_work,
+ igb_ptp_overflow_check);
+
+ adapter->tstamp_config.rx_filter = HWTSTAMP_FILTER_NONE;
+ adapter->tstamp_config.tx_type = HWTSTAMP_TX_OFF;
+
+ igb_ptp_reset(adapter);
}
}
diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c
index 94622d119abc..49fb62d02a76 100644
--- a/drivers/net/phy/broadcom.c
+++ b/drivers/net/phy/broadcom.c
@@ -421,6 +421,17 @@ static int bcm5482_read_status(struct phy_device *phydev)
return err;
}
+static int bcm54810_read_mmd(struct phy_device *phydev, int devnum, u16 regnum)
+{
+ return -EOPNOTSUPP;
+}
+
+static int bcm54810_write_mmd(struct phy_device *phydev, int devnum, u16 regnum,
+ u16 val)
+{
+ return -EOPNOTSUPP;
+}
+
static int bcm5481_config_aneg(struct phy_device *phydev)
{
struct device_node *np = phydev->mdio.dev.of_node;
@@ -684,6 +695,8 @@ static struct phy_driver broadcom_drivers[] = {
.name = "Broadcom BCM54810",
.features = PHY_GBIT_FEATURES,
.flags = PHY_HAS_INTERRUPT,
+ .read_mmd = bcm54810_read_mmd,
+ .write_mmd = bcm54810_write_mmd,
.config_init = bcm54xx_config_init,
.config_aneg = bcm5481_config_aneg,
.ack_interrupt = bcm_phy_ack_intr,
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index d80bc5f59b3f..8b5e1ec6aabf 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -2168,7 +2168,9 @@ static void team_setup(struct net_device *dev)
dev->hw_features = TEAM_VLAN_FEATURES |
NETIF_F_HW_VLAN_CTAG_RX |
- NETIF_F_HW_VLAN_CTAG_FILTER;
+ NETIF_F_HW_VLAN_CTAG_FILTER |
+ NETIF_F_HW_VLAN_STAG_RX |
+ NETIF_F_HW_VLAN_STAG_FILTER;
dev->hw_features |= NETIF_F_GSO_ENCAP_ALL | NETIF_F_GSO_UDP_L4;
dev->features |= dev->hw_features;
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 03e0f8060cc2..331d74f9281b 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -3120,8 +3120,6 @@ static int virtnet_probe(struct virtio_device *vdev)
}
}
- _virtnet_set_queues(vi, vi->curr_queue_pairs);
-
/* serialize netdev register + virtio_device_ready() with ndo_open() */
rtnl_lock();
@@ -3134,6 +3132,8 @@ static int virtnet_probe(struct virtio_device *vdev)
virtio_device_ready(vdev);
+ _virtnet_set_queues(vi, vi->curr_queue_pairs);
+
rtnl_unlock();
err = virtnet_cpu_notif_add(vi);
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 3d8844e7090a..72a289d73dfc 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -510,12 +510,15 @@ static void enable_slot(struct acpiphp_slot *slot, bool bridge)
if (pass && dev->subordinate) {
check_hotplug_bridge(slot, dev);
pcibios_resource_survey_bus(dev->subordinate);
- __pci_bus_size_bridges(dev->subordinate,
- &add_list);
+ if (pci_is_root_bus(bus))
+ __pci_bus_size_bridges(dev->subordinate, &add_list);
}
}
}
- __pci_bus_assign_resources(bus, &add_list, NULL);
+ if (pci_is_root_bus(bus))
+ __pci_bus_assign_resources(bus, &add_list, NULL);
+ else
+ pci_assign_unassigned_bridge_resources(bus->self);
}
acpiphp_sanitize_bus(bus);
diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c
index 123420cac6b5..b75b12c2c702 100644
--- a/drivers/pcmcia/rsrc_nonstatic.c
+++ b/drivers/pcmcia/rsrc_nonstatic.c
@@ -1056,6 +1056,8 @@ static void nonstatic_release_resource_db(struct pcmcia_socket *s)
q = p->next;
kfree(p);
}
+
+ kfree(data);
}
diff --git a/drivers/scsi/raid_class.c b/drivers/scsi/raid_class.c
index cd0aba0d58b2..cd7912e34dcd 100644
--- a/drivers/scsi/raid_class.c
+++ b/drivers/scsi/raid_class.c
@@ -210,54 +210,6 @@ raid_attr_ro_state(level);
raid_attr_ro_fn(resync);
raid_attr_ro_state_fn(state);
-static void raid_component_release(struct device *dev)
-{
- struct raid_component *rc =
- container_of(dev, struct raid_component, dev);
- dev_printk(KERN_ERR, rc->dev.parent, "COMPONENT RELEASE\n");
- put_device(rc->dev.parent);
- kfree(rc);
-}
-
-int raid_component_add(struct raid_template *r,struct device *raid_dev,
- struct device *component_dev)
-{
- struct device *cdev =
- attribute_container_find_class_device(&r->raid_attrs.ac,
- raid_dev);
- struct raid_component *rc;
- struct raid_data *rd = dev_get_drvdata(cdev);
- int err;
-
- rc = kzalloc(sizeof(*rc), GFP_KERNEL);
- if (!rc)
- return -ENOMEM;
-
- INIT_LIST_HEAD(&rc->node);
- device_initialize(&rc->dev);
- rc->dev.release = raid_component_release;
- rc->dev.parent = get_device(component_dev);
- rc->num = rd->component_count++;
-
- dev_set_name(&rc->dev, "component-%d", rc->num);
- list_add_tail(&rc->node, &rd->component_list);
- rc->dev.class = &raid_class.class;
- err = device_add(&rc->dev);
- if (err)
- goto err_out;
-
- return 0;
-
-err_out:
- put_device(&rc->dev);
- list_del(&rc->node);
- rd->component_count--;
- put_device(component_dev);
- kfree(rc);
- return err;
-}
-EXPORT_SYMBOL(raid_component_add);
-
struct raid_template *
raid_class_attach(struct raid_function_template *ft)
{
diff --git a/drivers/scsi/snic/snic_disc.c b/drivers/scsi/snic/snic_disc.c
index 388ba2ebcce5..02b80291c136 100644
--- a/drivers/scsi/snic/snic_disc.c
+++ b/drivers/scsi/snic/snic_disc.c
@@ -316,12 +316,11 @@ snic_tgt_create(struct snic *snic, struct snic_tgt_id *tgtid)
"Snic Tgt: device_add, with err = %d\n",
ret);
- put_device(&tgt->dev);
put_device(&snic->shost->shost_gendev);
spin_lock_irqsave(snic->shost->host_lock, flags);
list_del(&tgt->list);
spin_unlock_irqrestore(snic->shost->host_lock, flags);
- kfree(tgt);
+ put_device(&tgt->dev);
tgt = NULL;
return tgt;
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
index 66de3a59f577..d3161be35b1b 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -3224,6 +3224,7 @@ void serial8250_init_port(struct uart_8250_port *up)
struct uart_port *port = &up->port;
spin_lock_init(&port->lock);
+ port->pm = NULL;
port->ops = &serial8250_pops;
up->cur_iotype = 0xFF;
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index 36321d810d36..af23d41b9843 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -2136,6 +2136,8 @@ static int __init lpuart32_imx_early_console_setup(struct earlycon_device *devic
OF_EARLYCON_DECLARE(lpuart, "fsl,vf610-lpuart", lpuart_early_console_setup);
OF_EARLYCON_DECLARE(lpuart32, "fsl,ls1021a-lpuart", lpuart32_early_console_setup);
OF_EARLYCON_DECLARE(lpuart32, "fsl,imx7ulp-lpuart", lpuart32_imx_early_console_setup);
+OF_EARLYCON_DECLARE(lpuart32, "fsl,imx8ulp-lpuart", lpuart32_imx_early_console_setup);
+OF_EARLYCON_DECLARE(lpuart32, "fsl,imx8qxp-lpuart", lpuart32_imx_early_console_setup);
EARLYCON_DECLARE(lpuart, lpuart_early_console_setup);
EARLYCON_DECLARE(lpuart32, lpuart32_early_console_setup);
diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c
index 58e1bc3a77d8..0f090188e265 100644
--- a/drivers/usb/dwc3/dwc3-qcom.c
+++ b/drivers/usb/dwc3/dwc3-qcom.c
@@ -176,55 +176,58 @@ static int dwc3_qcom_register_extcon(struct dwc3_qcom *qcom)
/* Only usable in contexts where the role can not change. */
static bool dwc3_qcom_is_host(struct dwc3_qcom *qcom)
{
- struct dwc3 *dwc = platform_get_drvdata(qcom->dwc3);
+ struct dwc3 *dwc;
+
+ /*
+ * FIXME: Fix this layering violation.
+ */
+ dwc = platform_get_drvdata(qcom->dwc3);
+
+ /* Core driver may not have probed yet. */
+ if (!dwc)
+ return false;
return dwc->xhci;
}
+static void dwc3_qcom_enable_wakeup_irq(int irq)
+{
+ if (!irq)
+ return;
+
+ enable_irq(irq);
+ enable_irq_wake(irq);
+}
+
+static void dwc3_qcom_disable_wakeup_irq(int irq)
+{
+ if (!irq)
+ return;
+
+ disable_irq_wake(irq);
+ disable_irq_nosync(irq);
+}
+
static void dwc3_qcom_disable_interrupts(struct dwc3_qcom *qcom)
{
- if (qcom->hs_phy_irq) {
- disable_irq_wake(qcom->hs_phy_irq);
- disable_irq_nosync(qcom->hs_phy_irq);
- }
+ dwc3_qcom_disable_wakeup_irq(qcom->hs_phy_irq);
- if (qcom->dp_hs_phy_irq) {
- disable_irq_wake(qcom->dp_hs_phy_irq);
- disable_irq_nosync(qcom->dp_hs_phy_irq);
- }
+ dwc3_qcom_disable_wakeup_irq(qcom->dp_hs_phy_irq);
- if (qcom->dm_hs_phy_irq) {
- disable_irq_wake(qcom->dm_hs_phy_irq);
- disable_irq_nosync(qcom->dm_hs_phy_irq);
- }
+ dwc3_qcom_disable_wakeup_irq(qcom->dm_hs_phy_irq);
- if (qcom->ss_phy_irq) {
- disable_irq_wake(qcom->ss_phy_irq);
- disable_irq_nosync(qcom->ss_phy_irq);
- }
+ dwc3_qcom_disable_wakeup_irq(qcom->ss_phy_irq);
}
static void dwc3_qcom_enable_interrupts(struct dwc3_qcom *qcom)
{
- if (qcom->hs_phy_irq) {
- enable_irq(qcom->hs_phy_irq);
- enable_irq_wake(qcom->hs_phy_irq);
- }
+ dwc3_qcom_enable_wakeup_irq(qcom->hs_phy_irq);
- if (qcom->dp_hs_phy_irq) {
- enable_irq(qcom->dp_hs_phy_irq);
- enable_irq_wake(qcom->dp_hs_phy_irq);
- }
+ dwc3_qcom_enable_wakeup_irq(qcom->dp_hs_phy_irq);
- if (qcom->dm_hs_phy_irq) {
- enable_irq(qcom->dm_hs_phy_irq);
- enable_irq_wake(qcom->dm_hs_phy_irq);
- }
+ dwc3_qcom_enable_wakeup_irq(qcom->dm_hs_phy_irq);
- if (qcom->ss_phy_irq) {
- enable_irq(qcom->ss_phy_irq);
- enable_irq_wake(qcom->ss_phy_irq);
- }
+ dwc3_qcom_enable_wakeup_irq(qcom->ss_phy_irq);
}
static int dwc3_qcom_suspend(struct dwc3_qcom *qcom)
diff --git a/drivers/video/fbdev/core/sysimgblt.c b/drivers/video/fbdev/core/sysimgblt.c
index a4d05b1b17d7..665ef7a0a249 100644
--- a/drivers/video/fbdev/core/sysimgblt.c
+++ b/drivers/video/fbdev/core/sysimgblt.c
@@ -188,23 +188,29 @@ static void fast_imageblit(const struct fb_image *image, struct fb_info *p,
{
u32 fgx = fgcolor, bgx = bgcolor, bpp = p->var.bits_per_pixel;
u32 ppw = 32/bpp, spitch = (image->width + 7)/8;
- u32 bit_mask, end_mask, eorx, shift;
- const char *s = image->data, *src;
+ u32 bit_mask, eorx, shift;
+ const u8 *s = image->data, *src;
u32 *dst;
- const u32 *tab = NULL;
+ const u32 *tab;
+ size_t tablen;
+ u32 colortab[16];
int i, j, k;
switch (bpp) {
case 8:
tab = fb_be_math(p) ? cfb_tab8_be : cfb_tab8_le;
+ tablen = 16;
break;
case 16:
tab = fb_be_math(p) ? cfb_tab16_be : cfb_tab16_le;
+ tablen = 4;
break;
case 32:
- default:
tab = cfb_tab32;
+ tablen = 2;
break;
+ default:
+ return;
}
for (i = ppw-1; i--; ) {
@@ -218,20 +224,62 @@ static void fast_imageblit(const struct fb_image *image, struct fb_info *p,
eorx = fgx ^ bgx;
k = image->width/ppw;
+ for (i = 0; i < tablen; ++i)
+ colortab[i] = (tab[i] & eorx) ^ bgx;
+
for (i = image->height; i--; ) {
dst = dst1;
shift = 8;
src = s;
- for (j = k; j--; ) {
+ /*
+ * Manually unroll the per-line copying loop for better
+ * performance. This works until we processed the last
+ * completely filled source byte (inclusive).
+ */
+ switch (ppw) {
+ case 4: /* 8 bpp */
+ for (j = k; j >= 2; j -= 2, ++src) {
+ *dst++ = colortab[(*src >> 4) & bit_mask];
+ *dst++ = colortab[(*src >> 0) & bit_mask];
+ }
+ break;
+ case 2: /* 16 bpp */
+ for (j = k; j >= 4; j -= 4, ++src) {
+ *dst++ = colortab[(*src >> 6) & bit_mask];
+ *dst++ = colortab[(*src >> 4) & bit_mask];
+ *dst++ = colortab[(*src >> 2) & bit_mask];
+ *dst++ = colortab[(*src >> 0) & bit_mask];
+ }
+ break;
+ case 1: /* 32 bpp */
+ for (j = k; j >= 8; j -= 8, ++src) {
+ *dst++ = colortab[(*src >> 7) & bit_mask];
+ *dst++ = colortab[(*src >> 6) & bit_mask];
+ *dst++ = colortab[(*src >> 5) & bit_mask];
+ *dst++ = colortab[(*src >> 4) & bit_mask];
+ *dst++ = colortab[(*src >> 3) & bit_mask];
+ *dst++ = colortab[(*src >> 2) & bit_mask];
+ *dst++ = colortab[(*src >> 1) & bit_mask];
+ *dst++ = colortab[(*src >> 0) & bit_mask];
+ }
+ break;
+ }
+
+ /*
+ * For image widths that are not a multiple of 8, there
+ * are trailing pixels left on the current line. Print
+ * them as well.
+ */
+ for (; j--; ) {
shift -= ppw;
- end_mask = tab[(*src >> shift) & bit_mask];
- *dst++ = (end_mask & eorx) ^ bgx;
+ *dst++ = colortab[(*src >> shift) & bit_mask];
if (!shift) {
shift = 8;
- src++;
+ ++src;
}
}
+
dst1 += p->fix.line_length;
s += spitch;
}
diff --git a/drivers/video/fbdev/mmp/hw/mmp_ctrl.c b/drivers/video/fbdev/mmp/hw/mmp_ctrl.c
index fcdbb2df137f..2277d64310ab 100644
--- a/drivers/video/fbdev/mmp/hw/mmp_ctrl.c
+++ b/drivers/video/fbdev/mmp/hw/mmp_ctrl.c
@@ -523,7 +523,9 @@ static int mmphw_probe(struct platform_device *pdev)
ret = -ENOENT;
goto failed;
}
- clk_prepare_enable(ctrl->clk);
+ ret = clk_prepare_enable(ctrl->clk);
+ if (ret)
+ goto failed;
/* init global regs */
ctrl_set_default(ctrl);
diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c
index 17cd682acc22..07be3a374efb 100644
--- a/drivers/virtio/virtio_mmio.c
+++ b/drivers/virtio/virtio_mmio.c
@@ -536,11 +536,9 @@ static void virtio_mmio_release_dev(struct device *_d)
{
struct virtio_device *vdev =
container_of(_d, struct virtio_device, dev);
- struct virtio_mmio_device *vm_dev =
- container_of(vdev, struct virtio_mmio_device, vdev);
- struct platform_device *pdev = vm_dev->pdev;
+ struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev);
- devm_kfree(&pdev->dev, vm_dev);
+ kfree(vm_dev);
}
/* Platform device */
@@ -548,19 +546,10 @@ static void virtio_mmio_release_dev(struct device *_d)
static int virtio_mmio_probe(struct platform_device *pdev)
{
struct virtio_mmio_device *vm_dev;
- struct resource *mem;
unsigned long magic;
int rc;
- mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!mem)
- return -EINVAL;
-
- if (!devm_request_mem_region(&pdev->dev, mem->start,
- resource_size(mem), pdev->name))
- return -EBUSY;
-
- vm_dev = devm_kzalloc(&pdev->dev, sizeof(*vm_dev), GFP_KERNEL);
+ vm_dev = kzalloc(sizeof(*vm_dev), GFP_KERNEL);
if (!vm_dev)
return -ENOMEM;
@@ -571,9 +560,9 @@ static int virtio_mmio_probe(struct platform_device *pdev)
INIT_LIST_HEAD(&vm_dev->virtqueues);
spin_lock_init(&vm_dev->lock);
- vm_dev->base = devm_ioremap(&pdev->dev, mem->start, resource_size(mem));
- if (vm_dev->base == NULL)
- return -EFAULT;
+ vm_dev->base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(vm_dev->base))
+ return PTR_ERR(vm_dev->base);
/* Check magic value */
magic = readl(vm_dev->base + VIRTIO_MMIO_MAGIC_VALUE);
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 0294f519c29e..b69d6f7012f4 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -4106,8 +4106,7 @@ int btrfs_cancel_balance(struct btrfs_fs_info *fs_info)
}
}
- BUG_ON(fs_info->balance_ctl ||
- test_bit(BTRFS_FS_BALANCE_RUNNING, &fs_info->flags));
+ ASSERT(!test_bit(BTRFS_FS_BALANCE_RUNNING, &fs_info->flags));
atomic_dec(&fs_info->balance_cancel_req);
mutex_unlock(&fs_info->balance_mutex);
return 0;
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 7b482489bd22..0613b86cc3fd 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -3991,9 +3991,9 @@ static int cifs_readpage_worker(struct file *file, struct page *page,
io_error:
kunmap(page);
- unlock_page(page);
read_complete:
+ unlock_page(page);
return rc;
}
diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index d4e204473e76..0864481d8551 100644
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -1858,7 +1858,7 @@ static void del_timeout(struct dlm_lkb *lkb)
void dlm_scan_timeout(struct dlm_ls *ls)
{
struct dlm_rsb *r;
- struct dlm_lkb *lkb;
+ struct dlm_lkb *lkb = NULL, *iter;
int do_cancel, do_warn;
s64 wait_us;
@@ -1869,27 +1869,28 @@ void dlm_scan_timeout(struct dlm_ls *ls)
do_cancel = 0;
do_warn = 0;
mutex_lock(&ls->ls_timeout_mutex);
- list_for_each_entry(lkb, &ls->ls_timeout, lkb_time_list) {
+ list_for_each_entry(iter, &ls->ls_timeout, lkb_time_list) {
wait_us = ktime_to_us(ktime_sub(ktime_get(),
- lkb->lkb_timestamp));
+ iter->lkb_timestamp));
- if ((lkb->lkb_exflags & DLM_LKF_TIMEOUT) &&
- wait_us >= (lkb->lkb_timeout_cs * 10000))
+ if ((iter->lkb_exflags & DLM_LKF_TIMEOUT) &&
+ wait_us >= (iter->lkb_timeout_cs * 10000))
do_cancel = 1;
- if ((lkb->lkb_flags & DLM_IFL_WATCH_TIMEWARN) &&
+ if ((iter->lkb_flags & DLM_IFL_WATCH_TIMEWARN) &&
wait_us >= dlm_config.ci_timewarn_cs * 10000)
do_warn = 1;
if (!do_cancel && !do_warn)
continue;
- hold_lkb(lkb);
+ hold_lkb(iter);
+ lkb = iter;
break;
}
mutex_unlock(&ls->ls_timeout_mutex);
- if (!do_cancel && !do_warn)
+ if (!lkb)
break;
r = lkb->lkb_resource;
@@ -5243,21 +5244,18 @@ void dlm_recover_waiters_pre(struct dlm_ls *ls)
static struct dlm_lkb *find_resend_waiter(struct dlm_ls *ls)
{
- struct dlm_lkb *lkb;
- int found = 0;
+ struct dlm_lkb *lkb = NULL, *iter;
mutex_lock(&ls->ls_waiters_mutex);
- list_for_each_entry(lkb, &ls->ls_waiters, lkb_wait_reply) {
- if (lkb->lkb_flags & DLM_IFL_RESEND) {
- hold_lkb(lkb);
- found = 1;
+ list_for_each_entry(iter, &ls->ls_waiters, lkb_wait_reply) {
+ if (iter->lkb_flags & DLM_IFL_RESEND) {
+ hold_lkb(iter);
+ lkb = iter;
break;
}
}
mutex_unlock(&ls->ls_waiters_mutex);
- if (!found)
- lkb = NULL;
return lkb;
}
@@ -5916,37 +5914,36 @@ int dlm_user_adopt_orphan(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
int mode, uint32_t flags, void *name, unsigned int namelen,
unsigned long timeout_cs, uint32_t *lkid)
{
- struct dlm_lkb *lkb;
+ struct dlm_lkb *lkb = NULL, *iter;
struct dlm_user_args *ua;
int found_other_mode = 0;
- int found = 0;
int rv = 0;
mutex_lock(&ls->ls_orphans_mutex);
- list_for_each_entry(lkb, &ls->ls_orphans, lkb_ownqueue) {
- if (lkb->lkb_resource->res_length != namelen)
+ list_for_each_entry(iter, &ls->ls_orphans, lkb_ownqueue) {
+ if (iter->lkb_resource->res_length != namelen)
continue;
- if (memcmp(lkb->lkb_resource->res_name, name, namelen))
+ if (memcmp(iter->lkb_resource->res_name, name, namelen))
continue;
- if (lkb->lkb_grmode != mode) {
+ if (iter->lkb_grmode != mode) {
found_other_mode = 1;
continue;
}
- found = 1;
- list_del_init(&lkb->lkb_ownqueue);
- lkb->lkb_flags &= ~DLM_IFL_ORPHAN;
- *lkid = lkb->lkb_id;
+ lkb = iter;
+ list_del_init(&iter->lkb_ownqueue);
+ iter->lkb_flags &= ~DLM_IFL_ORPHAN;
+ *lkid = iter->lkb_id;
break;
}
mutex_unlock(&ls->ls_orphans_mutex);
- if (!found && found_other_mode) {
+ if (!lkb && found_other_mode) {
rv = -EAGAIN;
goto out;
}
- if (!found) {
+ if (!lkb) {
rv = -ENOENT;
goto out;
}
diff --git a/fs/dlm/plock.c b/fs/dlm/plock.c
index 9fef426ce6f4..0501821182b1 100644
--- a/fs/dlm/plock.c
+++ b/fs/dlm/plock.c
@@ -83,8 +83,7 @@ static void send_op(struct plock_op *op)
abandoned waiter. So, we have to insert the unlock-close when the
lock call is interrupted. */
-static void do_unlock_close(struct dlm_ls *ls, u64 number,
- struct file *file, struct file_lock *fl)
+static void do_unlock_close(const struct dlm_plock_info *info)
{
struct plock_op *op;
@@ -93,15 +92,12 @@ static void do_unlock_close(struct dlm_ls *ls, u64 number,
return;
op->info.optype = DLM_PLOCK_OP_UNLOCK;
- op->info.pid = fl->fl_pid;
- op->info.fsid = ls->ls_global_id;
- op->info.number = number;
+ op->info.pid = info->pid;
+ op->info.fsid = info->fsid;
+ op->info.number = info->number;
op->info.start = 0;
op->info.end = OFFSET_MAX;
- if (fl->fl_lmops && fl->fl_lmops->lm_grant)
- op->info.owner = (__u64) fl->fl_pid;
- else
- op->info.owner = (__u64)(long) fl->fl_owner;
+ op->info.owner = info->owner;
op->info.flags |= DLM_PLOCK_FL_CLOSE;
send_op(op);
@@ -164,13 +160,14 @@ int dlm_posix_lock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
rv = wait_event_killable(recv_wq, (op->done != 0));
if (rv == -ERESTARTSYS) {
- log_debug(ls, "%s: wait killed %llx", __func__,
- (unsigned long long)number);
spin_lock(&ops_lock);
list_del(&op->list);
spin_unlock(&ops_lock);
+ log_debug(ls, "%s: wait interrupted %x %llx pid %d",
+ __func__, ls->ls_global_id,
+ (unsigned long long)number, op->info.pid);
dlm_release_plock_op(op);
- do_unlock_close(ls, number, file, fl);
+ do_unlock_close(&op->info);
goto out;
}
@@ -411,7 +408,7 @@ static ssize_t dev_read(struct file *file, char __user *u, size_t count,
if (op->info.flags & DLM_PLOCK_FL_CLOSE)
list_del(&op->list);
else
- list_move(&op->list, &recv_list);
+ list_move_tail(&op->list, &recv_list);
memcpy(&info, &op->info, sizeof(info));
}
spin_unlock(&ops_lock);
@@ -436,9 +433,9 @@ static ssize_t dev_read(struct file *file, char __user *u, size_t count,
static ssize_t dev_write(struct file *file, const char __user *u, size_t count,
loff_t *ppos)
{
+ struct plock_op *op = NULL, *iter;
struct dlm_plock_info info;
- struct plock_op *op;
- int found = 0, do_callback = 0;
+ int do_callback = 0;
if (count != sizeof(info))
return -EINVAL;
@@ -449,31 +446,63 @@ static ssize_t dev_write(struct file *file, const char __user *u, size_t count,
if (check_version(&info))
return -EINVAL;
+ /*
+ * The results for waiting ops (SETLKW) can be returned in any
+ * order, so match all fields to find the op. The results for
+ * non-waiting ops are returned in the order that they were sent
+ * to userspace, so match the result with the first non-waiting op.
+ */
spin_lock(&ops_lock);
- list_for_each_entry(op, &recv_list, list) {
- if (op->info.fsid == info.fsid &&
- op->info.number == info.number &&
- op->info.owner == info.owner) {
- list_del_init(&op->list);
- memcpy(&op->info, &info, sizeof(info));
- if (op->data)
- do_callback = 1;
- else
- op->done = 1;
- found = 1;
- break;
+ if (info.wait) {
+ list_for_each_entry(iter, &recv_list, list) {
+ if (iter->info.fsid == info.fsid &&
+ iter->info.number == info.number &&
+ iter->info.owner == info.owner &&
+ iter->info.pid == info.pid &&
+ iter->info.start == info.start &&
+ iter->info.end == info.end &&
+ iter->info.ex == info.ex &&
+ iter->info.wait) {
+ op = iter;
+ break;
+ }
+ }
+ } else {
+ list_for_each_entry(iter, &recv_list, list) {
+ if (!iter->info.wait) {
+ op = iter;
+ break;
+ }
}
}
+
+ if (op) {
+ /* Sanity check that op and info match. */
+ if (info.wait)
+ WARN_ON(op->info.optype != DLM_PLOCK_OP_LOCK);
+ else
+ WARN_ON(op->info.fsid != info.fsid ||
+ op->info.number != info.number ||
+ op->info.owner != info.owner ||
+ op->info.optype != info.optype);
+
+ list_del_init(&op->list);
+ memcpy(&op->info, &info, sizeof(info));
+ if (op->data)
+ do_callback = 1;
+ else
+ op->done = 1;
+ }
spin_unlock(&ops_lock);
- if (found) {
+ if (op) {
if (do_callback)
dlm_plock_callback(op);
else
wake_up(&recv_wq);
} else
- log_print("dev_write no op %x %llx", info.fsid,
- (unsigned long long)info.number);
+ log_print("%s: no op %x %llx", __func__,
+ info.fsid, (unsigned long long)info.number);
return count;
}
diff --git a/fs/dlm/recover.c b/fs/dlm/recover.c
index ce2aa54ca2e2..98b710cc9cf3 100644
--- a/fs/dlm/recover.c
+++ b/fs/dlm/recover.c
@@ -734,10 +734,9 @@ void dlm_recovered_lock(struct dlm_rsb *r)
static void recover_lvb(struct dlm_rsb *r)
{
- struct dlm_lkb *lkb, *high_lkb = NULL;
+ struct dlm_lkb *big_lkb = NULL, *iter, *high_lkb = NULL;
uint32_t high_seq = 0;
int lock_lvb_exists = 0;
- int big_lock_exists = 0;
int lvblen = r->res_ls->ls_lvblen;
if (!rsb_flag(r, RSB_NEW_MASTER2) &&
@@ -753,37 +752,37 @@ static void recover_lvb(struct dlm_rsb *r)
/* we are the new master, so figure out if VALNOTVALID should
be set, and set the rsb lvb from the best lkb available. */
- list_for_each_entry(lkb, &r->res_grantqueue, lkb_statequeue) {
- if (!(lkb->lkb_exflags & DLM_LKF_VALBLK))
+ list_for_each_entry(iter, &r->res_grantqueue, lkb_statequeue) {
+ if (!(iter->lkb_exflags & DLM_LKF_VALBLK))
continue;
lock_lvb_exists = 1;
- if (lkb->lkb_grmode > DLM_LOCK_CR) {
- big_lock_exists = 1;
+ if (iter->lkb_grmode > DLM_LOCK_CR) {
+ big_lkb = iter;
goto setflag;
}
- if (((int)lkb->lkb_lvbseq - (int)high_seq) >= 0) {
- high_lkb = lkb;
- high_seq = lkb->lkb_lvbseq;
+ if (((int)iter->lkb_lvbseq - (int)high_seq) >= 0) {
+ high_lkb = iter;
+ high_seq = iter->lkb_lvbseq;
}
}
- list_for_each_entry(lkb, &r->res_convertqueue, lkb_statequeue) {
- if (!(lkb->lkb_exflags & DLM_LKF_VALBLK))
+ list_for_each_entry(iter, &r->res_convertqueue, lkb_statequeue) {
+ if (!(iter->lkb_exflags & DLM_LKF_VALBLK))
continue;
lock_lvb_exists = 1;
- if (lkb->lkb_grmode > DLM_LOCK_CR) {
- big_lock_exists = 1;
+ if (iter->lkb_grmode > DLM_LOCK_CR) {
+ big_lkb = iter;
goto setflag;
}
- if (((int)lkb->lkb_lvbseq - (int)high_seq) >= 0) {
- high_lkb = lkb;
- high_seq = lkb->lkb_lvbseq;
+ if (((int)iter->lkb_lvbseq - (int)high_seq) >= 0) {
+ high_lkb = iter;
+ high_seq = iter->lkb_lvbseq;
}
}
@@ -792,7 +791,7 @@ static void recover_lvb(struct dlm_rsb *r)
goto out;
/* lvb is invalidated if only NL/CR locks remain */
- if (!big_lock_exists)
+ if (!big_lkb)
rsb_set_flag(r, RSB_VALNOTVALID);
if (!r->res_lvbptr) {
@@ -801,9 +800,9 @@ static void recover_lvb(struct dlm_rsb *r)
goto out;
}
- if (big_lock_exists) {
- r->res_lvbseq = lkb->lkb_lvbseq;
- memcpy(r->res_lvbptr, lkb->lkb_lvbptr, lvblen);
+ if (big_lkb) {
+ r->res_lvbseq = big_lkb->lkb_lvbseq;
+ memcpy(r->res_lvbptr, big_lkb->lkb_lvbptr, lvblen);
} else if (high_lkb) {
r->res_lvbseq = high_lkb->lkb_lvbseq;
memcpy(r->res_lvbptr, high_lkb->lkb_lvbptr, lvblen);
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index bb0eaa4638e3..29157f7d9663 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -1374,7 +1374,14 @@ static int gfs2_show_options(struct seq_file *s, struct dentry *root)
{
struct gfs2_sbd *sdp = root->d_sb->s_fs_info;
struct gfs2_args *args = &sdp->sd_args;
- int val;
+ unsigned int logd_secs, statfs_slow, statfs_quantum, quota_quantum;
+
+ spin_lock(&sdp->sd_tune.gt_spin);
+ logd_secs = sdp->sd_tune.gt_logd_secs;
+ quota_quantum = sdp->sd_tune.gt_quota_quantum;
+ statfs_quantum = sdp->sd_tune.gt_statfs_quantum;
+ statfs_slow = sdp->sd_tune.gt_statfs_slow;
+ spin_unlock(&sdp->sd_tune.gt_spin);
if (is_ancestor(root, sdp->sd_master_dir))
seq_puts(s, ",meta");
@@ -1429,17 +1436,14 @@ static int gfs2_show_options(struct seq_file *s, struct dentry *root)
}
if (args->ar_discard)
seq_puts(s, ",discard");
- val = sdp->sd_tune.gt_logd_secs;
- if (val != 30)
- seq_printf(s, ",commit=%d", val);
- val = sdp->sd_tune.gt_statfs_quantum;
- if (val != 30)
- seq_printf(s, ",statfs_quantum=%d", val);
- else if (sdp->sd_tune.gt_statfs_slow)
+ if (logd_secs != 30)
+ seq_printf(s, ",commit=%d", logd_secs);
+ if (statfs_quantum != 30)
+ seq_printf(s, ",statfs_quantum=%d", statfs_quantum);
+ else if (statfs_slow)
seq_puts(s, ",statfs_quantum=0");
- val = sdp->sd_tune.gt_quota_quantum;
- if (val != 60)
- seq_printf(s, ",quota_quantum=%d", val);
+ if (quota_quantum != 60)
+ seq_printf(s, ",quota_quantum=%d", quota_quantum);
if (args->ar_statfs_percent)
seq_printf(s, ",statfs_percent=%d", args->ar_statfs_percent);
if (args->ar_errors != GFS2_ERRORS_DEFAULT) {
diff --git a/fs/jfs/jfs_dmap.c b/fs/jfs/jfs_dmap.c
index 07b9df8938f2..63ad6b1d575a 100644
--- a/fs/jfs/jfs_dmap.c
+++ b/fs/jfs/jfs_dmap.c
@@ -2040,6 +2040,9 @@ dbAllocDmapLev(struct bmap * bmp,
if (dbFindLeaf((dmtree_t *) & dp->tree, l2nb, &leafidx))
return -ENOSPC;
+ if (leafidx < 0)
+ return -EIO;
+
/* determine the block number within the file system corresponding
* to the leaf at which free space was found.
*/
diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c
index 78789c5ed36b..e10db01f253b 100644
--- a/fs/jfs/jfs_txnmgr.c
+++ b/fs/jfs/jfs_txnmgr.c
@@ -367,6 +367,11 @@ tid_t txBegin(struct super_block *sb, int flag)
jfs_info("txBegin: flag = 0x%x", flag);
log = JFS_SBI(sb)->log;
+ if (!log) {
+ jfs_error(sb, "read-only filesystem\n");
+ return 0;
+ }
+
TXN_LOCK();
INCREMENT(TxStat.txBegin);
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index 14528c0ffe63..c2c439acbb78 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -811,6 +811,11 @@ static int jfs_link(struct dentry *old_dentry,
if (rc)
goto out;
+ if (isReadOnly(ip)) {
+ jfs_error(ip->i_sb, "read-only filesystem\n");
+ return -EROFS;
+ }
+
tid = txBegin(ip->i_sb, 0);
mutex_lock_nested(&JFS_IP(dir)->commit_mutex, COMMIT_MUTEX_PARENT);
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 78191320f8e2..e958181b7361 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1019,9 +1019,9 @@ static void revoke_delegation(struct nfs4_delegation *dp)
WARN_ON(!list_empty(&dp->dl_recall_lru));
if (clp->cl_minorversion) {
+ spin_lock(&clp->cl_lock);
dp->dl_stid.sc_type = NFS4_REVOKED_DELEG_STID;
refcount_inc(&dp->dl_stid.sc_count);
- spin_lock(&clp->cl_lock);
list_add(&dp->dl_recall_lru, &clp->cl_revoked);
spin_unlock(&clp->cl_lock);
}
@@ -4998,15 +4998,6 @@ static __be32 nfsd4_validate_stateid(struct nfs4_client *cl, stateid_t *stateid)
if (ZERO_STATEID(stateid) || ONE_STATEID(stateid) ||
CLOSE_STATEID(stateid))
return status;
- /* Client debugging aid. */
- if (!same_clid(&stateid->si_opaque.so_clid, &cl->cl_clientid)) {
- char addr_str[INET6_ADDRSTRLEN];
- rpc_ntop((struct sockaddr *)&cl->cl_addr, addr_str,
- sizeof(addr_str));
- pr_warn_ratelimited("NFSD: client %s testing state ID "
- "with incorrect client ID\n", addr_str);
- return status;
- }
spin_lock(&cl->cl_lock);
s = find_stateid_locked(cl, stateid);
if (!s)
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 770a2b143485..303987d29b9c 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -540,7 +540,7 @@ static void invalidate_dquots(struct super_block *sb, int type)
continue;
/* Wait for dquot users */
if (atomic_read(&dquot->dq_count)) {
- dqgrab(dquot);
+ atomic_inc(&dquot->dq_count);
spin_unlock(&dq_list_lock);
/*
* Once dqput() wakes us up, we know it's time to free
@@ -2407,7 +2407,8 @@ int dquot_load_quota_sb(struct super_block *sb, int type, int format_id,
error = add_dquot_ref(sb, type);
if (error)
- dquot_disable(sb, type, flags);
+ dquot_disable(sb, type,
+ DQUOT_USAGE_ENABLED | DQUOT_LIMITS_ENABLED);
return error;
out_fmt:
diff --git a/fs/udf/unicode.c b/fs/udf/unicode.c
index 5fcfa96463eb..85521d6b0237 100644
--- a/fs/udf/unicode.c
+++ b/fs/udf/unicode.c
@@ -247,7 +247,7 @@ static int udf_name_from_CS0(struct super_block *sb,
}
if (translate) {
- if (str_o_len <= 2 && str_o[0] == '.' &&
+ if (str_o_len > 0 && str_o_len <= 2 && str_o[0] == '.' &&
(str_o_len == 1 || str_o[1] == '.'))
needsCRC = 1;
if (needsCRC) {
diff --git a/include/linux/clk.h b/include/linux/clk.h
index 4f750c481b82..0a2382d3f68c 100644
--- a/include/linux/clk.h
+++ b/include/linux/clk.h
@@ -175,6 +175,39 @@ int clk_get_scaled_duty_cycle(struct clk *clk, unsigned int scale);
*/
bool clk_is_match(const struct clk *p, const struct clk *q);
+/**
+ * clk_rate_exclusive_get - get exclusivity over the rate control of a
+ * producer
+ * @clk: clock source
+ *
+ * This function allows drivers to get exclusive control over the rate of a
+ * provider. It prevents any other consumer to execute, even indirectly,
+ * opereation which could alter the rate of the provider or cause glitches
+ *
+ * If exlusivity is claimed more than once on clock, even by the same driver,
+ * the rate effectively gets locked as exclusivity can't be preempted.
+ *
+ * Must not be called from within atomic context.
+ *
+ * Returns success (0) or negative errno.
+ */
+int clk_rate_exclusive_get(struct clk *clk);
+
+/**
+ * clk_rate_exclusive_put - release exclusivity over the rate control of a
+ * producer
+ * @clk: clock source
+ *
+ * This function allows drivers to release the exclusivity it previously got
+ * from clk_rate_exclusive_get()
+ *
+ * The caller must balance the number of clk_rate_exclusive_get() and
+ * clk_rate_exclusive_put() calls.
+ *
+ * Must not be called from within atomic context.
+ */
+void clk_rate_exclusive_put(struct clk *clk);
+
#else
static inline int clk_notifier_register(struct clk *clk,
@@ -221,6 +254,13 @@ static inline bool clk_is_match(const struct clk *p, const struct clk *q)
return p == q;
}
+static inline int clk_rate_exclusive_get(struct clk *clk)
+{
+ return 0;
+}
+
+static inline void clk_rate_exclusive_put(struct clk *clk) {}
+
#endif
/**
@@ -364,38 +404,6 @@ struct clk *devm_clk_get(struct device *dev, const char *id);
*/
struct clk *devm_get_clk_from_child(struct device *dev,
struct device_node *np, const char *con_id);
-/**
- * clk_rate_exclusive_get - get exclusivity over the rate control of a
- * producer
- * @clk: clock source
- *
- * This function allows drivers to get exclusive control over the rate of a
- * provider. It prevents any other consumer to execute, even indirectly,
- * opereation which could alter the rate of the provider or cause glitches
- *
- * If exlusivity is claimed more than once on clock, even by the same driver,
- * the rate effectively gets locked as exclusivity can't be preempted.
- *
- * Must not be called from within atomic context.
- *
- * Returns success (0) or negative errno.
- */
-int clk_rate_exclusive_get(struct clk *clk);
-
-/**
- * clk_rate_exclusive_put - release exclusivity over the rate control of a
- * producer
- * @clk: clock source
- *
- * This function allows drivers to release the exclusivity it previously got
- * from clk_rate_exclusive_get()
- *
- * The caller must balance the number of clk_rate_exclusive_get() and
- * clk_rate_exclusive_put() calls.
- *
- * Must not be called from within atomic context.
- */
-void clk_rate_exclusive_put(struct clk *clk);
/**
* clk_enable - inform the system when the clock source should be running.
@@ -665,14 +673,6 @@ static inline void clk_bulk_put(int num_clks, struct clk_bulk_data *clks) {}
static inline void devm_clk_put(struct device *dev, struct clk *clk) {}
-
-static inline int clk_rate_exclusive_get(struct clk *clk)
-{
- return 0;
-}
-
-static inline void clk_rate_exclusive_put(struct clk *clk) {}
-
static inline int clk_enable(struct clk *clk)
{
return 0;
diff --git a/include/linux/raid_class.h b/include/linux/raid_class.h
index ec8655514283..c868bb927c3d 100644
--- a/include/linux/raid_class.h
+++ b/include/linux/raid_class.h
@@ -78,7 +78,3 @@ DEFINE_RAID_ATTRIBUTE(enum raid_state, state)
struct raid_template *raid_class_attach(struct raid_function_template *);
void raid_class_release(struct raid_template *);
-
-int __must_check raid_component_add(struct raid_template *, struct device *,
- struct device *);
-
diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index faee73c084d4..d49c1aad2464 100644
--- a/include/linux/virtio_net.h
+++ b/include/linux/virtio_net.h
@@ -148,6 +148,10 @@ static inline int virtio_net_hdr_to_skb(struct sk_buff *skb,
if (gso_type & SKB_GSO_UDP)
nh_off -= thlen;
+ /* Kernel has a special handling for GSO_BY_FRAGS. */
+ if (gso_size == GSO_BY_FRAGS)
+ return -EINVAL;
+
/* Too small packets are not really GSO ones. */
if (skb->len - nh_off > gso_size) {
shinfo->gso_size = gso_size;
diff --git a/include/media/v4l2-mem2mem.h b/include/media/v4l2-mem2mem.h
index d655720e16a1..62c67e9e190c 100644
--- a/include/media/v4l2-mem2mem.h
+++ b/include/media/v4l2-mem2mem.h
@@ -405,7 +405,14 @@ void v4l2_m2m_buf_queue(struct v4l2_m2m_ctx *m2m_ctx,
static inline
unsigned int v4l2_m2m_num_src_bufs_ready(struct v4l2_m2m_ctx *m2m_ctx)
{
- return m2m_ctx->out_q_ctx.num_rdy;
+ unsigned int num_buf_rdy;
+ unsigned long flags;
+
+ spin_lock_irqsave(&m2m_ctx->out_q_ctx.rdy_spinlock, flags);
+ num_buf_rdy = m2m_ctx->out_q_ctx.num_rdy;
+ spin_unlock_irqrestore(&m2m_ctx->out_q_ctx.rdy_spinlock, flags);
+
+ return num_buf_rdy;
}
/**
@@ -417,7 +424,14 @@ unsigned int v4l2_m2m_num_src_bufs_ready(struct v4l2_m2m_ctx *m2m_ctx)
static inline
unsigned int v4l2_m2m_num_dst_bufs_ready(struct v4l2_m2m_ctx *m2m_ctx)
{
- return m2m_ctx->cap_q_ctx.num_rdy;
+ unsigned int num_buf_rdy;
+ unsigned long flags;
+
+ spin_lock_irqsave(&m2m_ctx->cap_q_ctx.rdy_spinlock, flags);
+ num_buf_rdy = m2m_ctx->cap_q_ctx.num_rdy;
+ spin_unlock_irqrestore(&m2m_ctx->cap_q_ctx.rdy_spinlock, flags);
+
+ return num_buf_rdy;
}
/**
diff --git a/include/net/bonding.h b/include/net/bonding.h
index c458f084f7bb..7d317434e3d1 100644
--- a/include/net/bonding.h
+++ b/include/net/bonding.h
@@ -675,37 +675,14 @@ static inline struct slave *bond_slave_has_mac(struct bonding *bond,
}
/* Caller must hold rcu_read_lock() for read */
-static inline struct slave *bond_slave_has_mac_rcu(struct bonding *bond,
- const u8 *mac)
+static inline bool bond_slave_has_mac_rcu(struct bonding *bond, const u8 *mac)
{
struct list_head *iter;
struct slave *tmp;
- bond_for_each_slave_rcu(bond, tmp, iter)
- if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr))
- return tmp;
-
- return NULL;
-}
-
-/* Caller must hold rcu_read_lock() for read */
-static inline bool bond_slave_has_mac_rx(struct bonding *bond, const u8 *mac)
-{
- struct list_head *iter;
- struct slave *tmp;
- struct netdev_hw_addr *ha;
-
bond_for_each_slave_rcu(bond, tmp, iter)
if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr))
return true;
-
- if (netdev_uc_empty(bond->dev))
- return false;
-
- netdev_for_each_uc_addr(ha, bond->dev)
- if (ether_addr_equal_64bits(mac, ha->addr))
- return true;
-
return false;
}
diff --git a/include/net/sock.h b/include/net/sock.h
index 72739f72e4b9..373e34b46a3c 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1152,6 +1152,7 @@ struct proto {
/*
* Pressure flag: try to collapse.
* Technical note: it is used by multiple contexts non atomically.
+ * Make sure to use READ_ONCE()/WRITE_ONCE() for all reads/writes.
* All the __sk_mem_schedule() is of this nature: accounting
* is strict, actions are advisory and have some latency.
*/
@@ -1265,6 +1266,12 @@ static inline bool sk_has_memory_pressure(const struct sock *sk)
return sk->sk_prot->memory_pressure != NULL;
}
+static inline bool sk_under_global_memory_pressure(const struct sock *sk)
+{
+ return sk->sk_prot->memory_pressure &&
+ !!READ_ONCE(*sk->sk_prot->memory_pressure);
+}
+
static inline bool sk_under_memory_pressure(const struct sock *sk)
{
if (!sk->sk_prot->memory_pressure)
@@ -1274,7 +1281,7 @@ static inline bool sk_under_memory_pressure(const struct sock *sk)
mem_cgroup_under_socket_pressure(sk->sk_memcg))
return true;
- return !!*sk->sk_prot->memory_pressure;
+ return !!READ_ONCE(*sk->sk_prot->memory_pressure);
}
static inline long
@@ -1328,7 +1335,7 @@ proto_memory_pressure(struct proto *prot)
{
if (!prot->memory_pressure)
return false;
- return !!*prot->memory_pressure;
+ return !!READ_ONCE(*prot->memory_pressure);
}
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index 9c6c3572b131..394c66442cff 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -1522,6 +1522,8 @@ static struct sched_rt_entity *pick_next_rt_entity(struct rq *rq,
BUG_ON(idx >= MAX_RT_PRIO);
queue = array->queue + idx;
+ if (SCHED_WARN_ON(list_empty(queue)))
+ return NULL;
next = list_entry(queue->next, struct sched_rt_entity, run_list);
return next;
@@ -1535,7 +1537,8 @@ static struct task_struct *_pick_next_task_rt(struct rq *rq)
do {
rt_se = pick_next_rt_entity(rq, rt_rq);
- BUG_ON(!rt_se);
+ if (unlikely(!rt_se))
+ return NULL;
rt_rq = group_rt_rq(rt_se);
} while (rt_rq);
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 9da7b10e56d2..f44c8f1fd3ec 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -3277,8 +3277,15 @@ static void *s_start(struct seq_file *m, loff_t *pos)
* will point to the same string as current_trace->name.
*/
mutex_lock(&trace_types_lock);
- if (unlikely(tr->current_trace && iter->trace->name != tr->current_trace->name))
+ if (unlikely(tr->current_trace && iter->trace->name != tr->current_trace->name)) {
+ /* Close iter->trace before switching to the new current tracer */
+ if (iter->trace->close)
+ iter->trace->close(iter);
*iter->trace = *tr->current_trace;
+ /* Reopen the new current tracer */
+ if (iter->trace->open)
+ iter->trace->open(iter);
+ }
mutex_unlock(&trace_types_lock);
#ifdef CONFIG_TRACER_MAX_TRACE
diff --git a/kernel/trace/trace_irqsoff.c b/kernel/trace/trace_irqsoff.c
index 98ea6d28df15..0f36bb59970d 100644
--- a/kernel/trace/trace_irqsoff.c
+++ b/kernel/trace/trace_irqsoff.c
@@ -222,7 +222,8 @@ static void irqsoff_trace_open(struct trace_iterator *iter)
{
if (is_graph(iter->tr))
graph_trace_open(iter);
-
+ else
+ iter->private = NULL;
}
static void irqsoff_trace_close(struct trace_iterator *iter)
diff --git a/kernel/trace/trace_sched_wakeup.c b/kernel/trace/trace_sched_wakeup.c
index 11f4dbd9526b..8041bd5e4262 100644
--- a/kernel/trace/trace_sched_wakeup.c
+++ b/kernel/trace/trace_sched_wakeup.c
@@ -287,6 +287,8 @@ static void wakeup_trace_open(struct trace_iterator *iter)
{
if (is_graph(iter->tr))
graph_trace_open(iter);
+ else
+ iter->private = NULL;
}
static void wakeup_trace_close(struct trace_iterator *iter)
diff --git a/lib/clz_ctz.c b/lib/clz_ctz.c
index 2e11e48446ab..ca0582d33532 100644
--- a/lib/clz_ctz.c
+++ b/lib/clz_ctz.c
@@ -30,36 +30,16 @@ int __weak __clzsi2(int val)
}
EXPORT_SYMBOL(__clzsi2);
-int __weak __clzdi2(long val);
-int __weak __ctzdi2(long val);
-#if BITS_PER_LONG == 32
-
-int __weak __clzdi2(long val)
+int __weak __clzdi2(u64 val);
+int __weak __clzdi2(u64 val)
{
- return 32 - fls((int)val);
+ return 64 - fls64(val);
}
EXPORT_SYMBOL(__clzdi2);
-int __weak __ctzdi2(long val)
+int __weak __ctzdi2(u64 val);
+int __weak __ctzdi2(u64 val)
{
- return __ffs((u32)val);
+ return __ffs64(val);
}
EXPORT_SYMBOL(__ctzdi2);
-
-#elif BITS_PER_LONG == 64
-
-int __weak __clzdi2(long val)
-{
- return 64 - fls64((u64)val);
-}
-EXPORT_SYMBOL(__clzdi2);
-
-int __weak __ctzdi2(long val)
-{
- return __ffs64((u64)val);
-}
-EXPORT_SYMBOL(__ctzdi2);
-
-#else
-#error BITS_PER_LONG not 32 or 64
-#endif
diff --git a/lib/mpi/longlong.h b/lib/mpi/longlong.h
index 6c5229f98c9e..cac4e5aee739 100644
--- a/lib/mpi/longlong.h
+++ b/lib/mpi/longlong.h
@@ -639,30 +639,12 @@ do { \
************** MIPS *****************
***************************************/
#if defined(__mips__) && W_TYPE_SIZE == 32
-#if (__GNUC__ >= 5) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 4)
#define umul_ppmm(w1, w0, u, v) \
do { \
UDItype __ll = (UDItype)(u) * (v); \
w1 = __ll >> 32; \
w0 = __ll; \
} while (0)
-#elif __GNUC__ > 2 || __GNUC_MINOR__ >= 7
-#define umul_ppmm(w1, w0, u, v) \
- __asm__ ("multu %2,%3" \
- : "=l" ((USItype)(w0)), \
- "=h" ((USItype)(w1)) \
- : "d" ((USItype)(u)), \
- "d" ((USItype)(v)))
-#else
-#define umul_ppmm(w1, w0, u, v) \
- __asm__ ("multu %2,%3\n" \
- "mflo %0\n" \
- "mfhi %1" \
- : "=d" ((USItype)(w0)), \
- "=d" ((USItype)(w1)) \
- : "d" ((USItype)(u)), \
- "d" ((USItype)(v)))
-#endif
#define UMUL_TIME 10
#define UDIV_TIME 100
#endif /* __mips__ */
@@ -687,7 +669,7 @@ do { \
: "d" ((UDItype)(u)), \
"d" ((UDItype)(v))); \
} while (0)
-#elif (__GNUC__ >= 5) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 4)
+#else
#define umul_ppmm(w1, w0, u, v) \
do { \
typedef unsigned int __ll_UTItype __attribute__((mode(TI))); \
@@ -695,22 +677,6 @@ do { \
w1 = __ll >> 64; \
w0 = __ll; \
} while (0)
-#elif __GNUC__ > 2 || __GNUC_MINOR__ >= 7
-#define umul_ppmm(w1, w0, u, v) \
- __asm__ ("dmultu %2,%3" \
- : "=l" ((UDItype)(w0)), \
- "=h" ((UDItype)(w1)) \
- : "d" ((UDItype)(u)), \
- "d" ((UDItype)(v)))
-#else
-#define umul_ppmm(w1, w0, u, v) \
- __asm__ ("dmultu %2,%3\n" \
- "mflo %0\n" \
- "mfhi %1" \
- : "=d" ((UDItype)(w0)), \
- "=d" ((UDItype)(w1)) \
- : "d" ((UDItype)(u)), \
- "d" ((UDItype)(v)))
#endif
#define UMUL_TIME 20
#define UDIV_TIME 140
diff --git a/lib/test_firmware.c b/lib/test_firmware.c
index b5e779bcfb34..be3baea88b61 100644
--- a/lib/test_firmware.c
+++ b/lib/test_firmware.c
@@ -284,16 +284,26 @@ static ssize_t config_test_show_str(char *dst,
return len;
}
-static int test_dev_config_update_bool(const char *buf, size_t size,
- bool *cfg)
+static inline int __test_dev_config_update_bool(const char *buf, size_t size,
+ bool *cfg)
{
int ret;
- mutex_lock(&test_fw_mutex);
if (strtobool(buf, cfg) < 0)
ret = -EINVAL;
else
ret = size;
+
+ return ret;
+}
+
+static int test_dev_config_update_bool(const char *buf, size_t size,
+ bool *cfg)
+{
+ int ret;
+
+ mutex_lock(&test_fw_mutex);
+ ret = __test_dev_config_update_bool(buf, size, cfg);
mutex_unlock(&test_fw_mutex);
return ret;
@@ -323,7 +333,7 @@ static ssize_t test_dev_config_show_int(char *buf, int cfg)
return snprintf(buf, PAGE_SIZE, "%d\n", val);
}
-static int test_dev_config_update_u8(const char *buf, size_t size, u8 *cfg)
+static inline int __test_dev_config_update_u8(const char *buf, size_t size, u8 *cfg)
{
int ret;
long new;
@@ -335,14 +345,23 @@ static int test_dev_config_update_u8(const char *buf, size_t size, u8 *cfg)
if (new > U8_MAX)
return -EINVAL;
- mutex_lock(&test_fw_mutex);
*(u8 *)cfg = new;
- mutex_unlock(&test_fw_mutex);
/* Always return full write size even if we didn't consume all */
return size;
}
+static int test_dev_config_update_u8(const char *buf, size_t size, u8 *cfg)
+{
+ int ret;
+
+ mutex_lock(&test_fw_mutex);
+ ret = __test_dev_config_update_u8(buf, size, cfg);
+ mutex_unlock(&test_fw_mutex);
+
+ return ret;
+}
+
static ssize_t test_dev_config_show_u8(char *buf, u8 cfg)
{
u8 val;
@@ -375,10 +394,10 @@ static ssize_t config_num_requests_store(struct device *dev,
mutex_unlock(&test_fw_mutex);
goto out;
}
- mutex_unlock(&test_fw_mutex);
- rc = test_dev_config_update_u8(buf, count,
- &test_fw_config->num_requests);
+ rc = __test_dev_config_update_u8(buf, count,
+ &test_fw_config->num_requests);
+ mutex_unlock(&test_fw_mutex);
out:
return rc;
diff --git a/net/batman-adv/bat_v_elp.c b/net/batman-adv/bat_v_elp.c
index af3da6cdfc79..17100d9ceaf0 100644
--- a/net/batman-adv/bat_v_elp.c
+++ b/net/batman-adv/bat_v_elp.c
@@ -513,7 +513,7 @@ int batadv_v_elp_packet_recv(struct sk_buff *skb,
struct batadv_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
struct batadv_elp_packet *elp_packet;
struct batadv_hard_iface *primary_if;
- struct ethhdr *ethhdr = (struct ethhdr *)skb_mac_header(skb);
+ struct ethhdr *ethhdr;
bool res;
int ret = NET_RX_DROP;
@@ -521,6 +521,7 @@ int batadv_v_elp_packet_recv(struct sk_buff *skb,
if (!res)
goto free_skb;
+ ethhdr = eth_hdr(skb);
if (batadv_is_my_mac(bat_priv, ethhdr->h_source))
goto free_skb;
diff --git a/net/batman-adv/bat_v_ogm.c b/net/batman-adv/bat_v_ogm.c
index 04a620fd1301..5d4232d8d651 100644
--- a/net/batman-adv/bat_v_ogm.c
+++ b/net/batman-adv/bat_v_ogm.c
@@ -119,8 +119,10 @@ static void batadv_v_ogm_send_to_if(struct sk_buff *skb,
{
struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
- if (hard_iface->if_status != BATADV_IF_ACTIVE)
+ if (hard_iface->if_status != BATADV_IF_ACTIVE) {
+ kfree_skb(skb);
return;
+ }
batadv_inc_counter(bat_priv, BATADV_CNT_MGMT_TX);
batadv_add_counter(bat_priv, BATADV_CNT_MGMT_TX_BYTES,
@@ -832,7 +834,7 @@ int batadv_v_ogm_packet_recv(struct sk_buff *skb,
{
struct batadv_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
struct batadv_ogm2_packet *ogm_packet;
- struct ethhdr *ethhdr = eth_hdr(skb);
+ struct ethhdr *ethhdr;
int ogm_offset;
u8 *packet_pos;
int ret = NET_RX_DROP;
@@ -846,6 +848,7 @@ int batadv_v_ogm_packet_recv(struct sk_buff *skb,
if (!batadv_check_management_packet(skb, if_incoming, BATADV_OGM2_HLEN))
goto free_skb;
+ ethhdr = eth_hdr(skb);
if (batadv_is_my_mac(bat_priv, ethhdr->h_source))
goto free_skb;
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index 6d68cdb9dd77..0d5519fcb438 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -643,7 +643,19 @@ int batadv_hardif_min_mtu(struct net_device *soft_iface)
*/
void batadv_update_min_mtu(struct net_device *soft_iface)
{
- soft_iface->mtu = batadv_hardif_min_mtu(soft_iface);
+ struct batadv_priv *bat_priv = netdev_priv(soft_iface);
+ int limit_mtu;
+ int mtu;
+
+ mtu = batadv_hardif_min_mtu(soft_iface);
+
+ if (bat_priv->mtu_set_by_user)
+ limit_mtu = bat_priv->mtu_set_by_user;
+ else
+ limit_mtu = ETH_DATA_LEN;
+
+ mtu = min(mtu, limit_mtu);
+ dev_set_mtu(soft_iface, mtu);
/* Check if the local translate table should be cleaned up to match a
* new (and smaller) MTU.
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 1003abb8cc35..7447dbd305fc 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -167,11 +167,14 @@ static int batadv_interface_set_mac_addr(struct net_device *dev, void *p)
static int batadv_interface_change_mtu(struct net_device *dev, int new_mtu)
{
+ struct batadv_priv *bat_priv = netdev_priv(dev);
+
/* check ranges */
if (new_mtu < 68 || new_mtu > batadv_hardif_min_mtu(dev))
return -EINVAL;
dev->mtu = new_mtu;
+ bat_priv->mtu_set_by_user = new_mtu;
return 0;
}
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 6bdb70c93e3f..c64d58c1b724 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -793,7 +793,6 @@ bool batadv_tt_local_add(struct net_device *soft_iface, const u8 *addr,
if (roamed_back) {
batadv_tt_global_free(bat_priv, tt_global,
"Roaming canceled");
- tt_global = NULL;
} else {
/* The global entry has to be marked as ROAMING and
* has to be kept for consistency purpose
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 37598ae1d3f7..34c18f72a41b 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -1514,6 +1514,12 @@ struct batadv_priv {
/** @soft_iface: net device which holds this struct as private data */
struct net_device *soft_iface;
+ /**
+ * @mtu_set_by_user: MTU was set once by user
+ * protected by rtnl_lock
+ */
+ int mtu_set_by_user;
+
/**
* @bat_counters: mesh internal traffic statistic counters (see
* batadv_counters)
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index fcc471f92189..9346fae5d664 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -5705,9 +5705,14 @@ static inline int l2cap_le_command_rej(struct l2cap_conn *conn,
if (!chan)
goto done;
+ chan = l2cap_chan_hold_unless_zero(chan);
+ if (!chan)
+ goto done;
+
l2cap_chan_lock(chan);
l2cap_chan_del(chan, ECONNREFUSED);
l2cap_chan_unlock(chan);
+ l2cap_chan_put(chan);
done:
mutex_unlock(&conn->chan_lock);
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 79f62517e24a..794db633f1c9 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -2702,7 +2702,10 @@ static int rtnl_setlink(struct sk_buff *skb, struct nlmsghdr *nlh,
ifm = nlmsg_data(nlh);
if (ifm->ifi_index > 0)
dev = __dev_get_by_index(net, ifm->ifi_index);
- else if (tb[IFLA_IFNAME])
+ else if (ifm->ifi_index < 0) {
+ NL_SET_ERR_MSG(extack, "ifindex can't be negative");
+ return -EINVAL;
+ } else if (tb[IFLA_IFNAME])
dev = __dev_get_by_name(net, ifname);
else
goto errout;
diff --git a/net/core/sock.c b/net/core/sock.c
index 3e6da3694a5a..4e3ed80a68ce 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -2538,7 +2538,7 @@ void __sk_mem_reduce_allocated(struct sock *sk, int amount)
if (mem_cgroup_sockets_enabled && sk->sk_memcg)
mem_cgroup_uncharge_skmem(sk->sk_memcg, amount);
- if (sk_under_memory_pressure(sk) &&
+ if (sk_under_global_memory_pressure(sk) &&
(sk_memory_allocated(sk) < sk_prot_mem_limits(sk, 0)))
sk_leave_memory_pressure(sk);
}
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index 27de4dc1ff51..c4ea0159ce2e 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -328,11 +328,15 @@ EXPORT_SYMBOL_GPL(dccp_disconnect);
__poll_t dccp_poll(struct file *file, struct socket *sock,
poll_table *wait)
{
- __poll_t mask;
struct sock *sk = sock->sk;
+ __poll_t mask;
+ u8 shutdown;
+ int state;
sock_poll_wait(file, sock, wait);
- if (sk->sk_state == DCCP_LISTEN)
+
+ state = inet_sk_state_load(sk);
+ if (state == DCCP_LISTEN)
return inet_csk_listen_poll(sk);
/* Socket is not locked. We are protected from async events
@@ -341,20 +345,21 @@ __poll_t dccp_poll(struct file *file, struct socket *sock,
*/
mask = 0;
- if (sk->sk_err)
+ if (READ_ONCE(sk->sk_err))
mask = EPOLLERR;
+ shutdown = READ_ONCE(sk->sk_shutdown);
- if (sk->sk_shutdown == SHUTDOWN_MASK || sk->sk_state == DCCP_CLOSED)
+ if (shutdown == SHUTDOWN_MASK || state == DCCP_CLOSED)
mask |= EPOLLHUP;
- if (sk->sk_shutdown & RCV_SHUTDOWN)
+ if (shutdown & RCV_SHUTDOWN)
mask |= EPOLLIN | EPOLLRDNORM | EPOLLRDHUP;
/* Connected? */
- if ((1 << sk->sk_state) & ~(DCCPF_REQUESTING | DCCPF_RESPOND)) {
+ if ((1 << state) & ~(DCCPF_REQUESTING | DCCPF_RESPOND)) {
if (atomic_read(&sk->sk_rmem_alloc) > 0)
mask |= EPOLLIN | EPOLLRDNORM;
- if (!(sk->sk_shutdown & SEND_SHUTDOWN)) {
+ if (!(shutdown & SEND_SHUTDOWN)) {
if (sk_stream_is_writeable(sk)) {
mask |= EPOLLOUT | EPOLLWRNORM;
} else { /* send SIGIO later */
@@ -372,7 +377,6 @@ __poll_t dccp_poll(struct file *file, struct socket *sock,
}
return mask;
}
-
EXPORT_SYMBOL_GPL(dccp_poll);
int dccp_ioctl(struct sock *sk, int cmd, unsigned long arg)
diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index 15c71b08c2df..a3536dfe9b16 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -319,12 +319,12 @@ static netdev_tx_t vti_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
switch (skb->protocol) {
case htons(ETH_P_IP):
- xfrm_decode_session(skb, &fl, AF_INET);
memset(IPCB(skb), 0, sizeof(*IPCB(skb)));
+ xfrm_decode_session(skb, &fl, AF_INET);
break;
case htons(ETH_P_IPV6):
- xfrm_decode_session(skb, &fl, AF_INET6);
memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));
+ xfrm_decode_session(skb, &fl, AF_INET6);
break;
default:
goto tx_err;
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 84069db0423a..d8d28ba169b4 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -549,7 +549,9 @@ void tcp_retransmit_timer(struct sock *sk)
tcp_stream_is_thin(tp) &&
icsk->icsk_retransmits <= TCP_THIN_LINEAR_RETRIES) {
icsk->icsk_backoff = 0;
- icsk->icsk_rto = min(__tcp_set_rto(tp), TCP_RTO_MAX);
+ icsk->icsk_rto = clamp(__tcp_set_rto(tp),
+ tcp_rto_min(sk),
+ TCP_RTO_MAX);
} else {
/* Use normal (exponential) backoff */
icsk->icsk_rto = min(icsk->icsk_rto << 1, TCP_RTO_MAX);
diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index 866ce815625e..a64050e77588 100644
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -562,12 +562,12 @@ vti6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
vti6_addr_conflict(t, ipv6_hdr(skb)))
goto tx_err;
- xfrm_decode_session(skb, &fl, AF_INET6);
memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));
+ xfrm_decode_session(skb, &fl, AF_INET6);
break;
case htons(ETH_P_IP):
- xfrm_decode_session(skb, &fl, AF_INET);
memset(IPCB(skb), 0, sizeof(*IPCB(skb)));
+ xfrm_decode_session(skb, &fl, AF_INET);
break;
default:
goto tx_err;
diff --git a/net/key/af_key.c b/net/key/af_key.c
index b8456e2f1167..47ffa69ca6f6 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -1858,9 +1858,9 @@ static int pfkey_dump(struct sock *sk, struct sk_buff *skb, const struct sadb_ms
if (ext_hdrs[SADB_X_EXT_FILTER - 1]) {
struct sadb_x_filter *xfilter = ext_hdrs[SADB_X_EXT_FILTER - 1];
- if ((xfilter->sadb_x_filter_splen >=
+ if ((xfilter->sadb_x_filter_splen >
(sizeof(xfrm_address_t) << 3)) ||
- (xfilter->sadb_x_filter_dplen >=
+ (xfilter->sadb_x_filter_dplen >
(sizeof(xfrm_address_t) << 3))) {
mutex_unlock(&pfk->dump_lock);
return -EINVAL;
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index 3bf8d7f3cdc3..0909f32eabfd 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -1656,6 +1656,7 @@ static int ip_vs_zero_all(struct netns_ipvs *ipvs)
#ifdef CONFIG_SYSCTL
static int zero;
+static int one = 1;
static int three = 3;
static int
@@ -1667,12 +1668,18 @@ proc_do_defense_mode(struct ctl_table *table, int write,
int val = *valp;
int rc;
- rc = proc_dointvec(table, write, buffer, lenp, ppos);
+ struct ctl_table tmp = {
+ .data = &val,
+ .maxlen = sizeof(int),
+ .mode = table->mode,
+ };
+
+ rc = proc_dointvec(&tmp, write, buffer, lenp, ppos);
if (write && (*valp != val)) {
- if ((*valp < 0) || (*valp > 3)) {
- /* Restore the correct value */
- *valp = val;
+ if (val < 0 || val > 3) {
+ rc = -EINVAL;
} else {
+ *valp = val;
update_defense_level(ipvs);
}
}
@@ -1683,37 +1690,27 @@ static int
proc_do_sync_threshold(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
+ struct netns_ipvs *ipvs = table->extra2;
int *valp = table->data;
int val[2];
int rc;
+ struct ctl_table tmp = {
+ .data = &val,
+ .maxlen = table->maxlen,
+ .mode = table->mode,
+ };
- /* backup the value first */
+ mutex_lock(&ipvs->sync_mutex);
memcpy(val, valp, sizeof(val));
-
- rc = proc_dointvec(table, write, buffer, lenp, ppos);
- if (write && (valp[0] < 0 || valp[1] < 0 ||
- (valp[0] >= valp[1] && valp[1]))) {
- /* Restore the correct value */
- memcpy(valp, val, sizeof(val));
- }
- return rc;
-}
-
-static int
-proc_do_sync_mode(struct ctl_table *table, int write,
- void __user *buffer, size_t *lenp, loff_t *ppos)
-{
- int *valp = table->data;
- int val = *valp;
- int rc;
-
- rc = proc_dointvec(table, write, buffer, lenp, ppos);
- if (write && (*valp != val)) {
- if ((*valp < 0) || (*valp > 1)) {
- /* Restore the correct value */
- *valp = val;
- }
+ rc = proc_dointvec(&tmp, write, buffer, lenp, ppos);
+ if (write) {
+ if (val[0] < 0 || val[1] < 0 ||
+ (val[0] >= val[1] && val[1]))
+ rc = -EINVAL;
+ else
+ memcpy(valp, val, sizeof(val));
}
+ mutex_unlock(&ipvs->sync_mutex);
return rc;
}
@@ -1725,12 +1722,18 @@ proc_do_sync_ports(struct ctl_table *table, int write,
int val = *valp;
int rc;
- rc = proc_dointvec(table, write, buffer, lenp, ppos);
+ struct ctl_table tmp = {
+ .data = &val,
+ .maxlen = sizeof(int),
+ .mode = table->mode,
+ };
+
+ rc = proc_dointvec(&tmp, write, buffer, lenp, ppos);
if (write && (*valp != val)) {
- if (*valp < 1 || !is_power_of_2(*valp)) {
- /* Restore the correct value */
+ if (val < 1 || !is_power_of_2(val))
+ rc = -EINVAL;
+ else
*valp = val;
- }
}
return rc;
}
@@ -1790,7 +1793,9 @@ static struct ctl_table vs_vars[] = {
.procname = "sync_version",
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = proc_do_sync_mode,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &zero,
+ .extra2 = &one,
},
{
.procname = "sync_ports",
@@ -3942,6 +3947,7 @@ static int __net_init ip_vs_control_net_init_sysctl(struct netns_ipvs *ipvs)
ipvs->sysctl_sync_threshold[0] = DEFAULT_SYNC_THRESHOLD;
ipvs->sysctl_sync_threshold[1] = DEFAULT_SYNC_PERIOD;
tbl[idx].data = &ipvs->sysctl_sync_threshold;
+ tbl[idx].extra2 = ipvs;
tbl[idx++].maxlen = sizeof(ipvs->sysctl_sync_threshold);
ipvs->sysctl_sync_refresh_period = DEFAULT_SYNC_REFRESH_PERIOD;
tbl[idx++].data = &ipvs->sysctl_sync_refresh_period;
diff --git a/net/netfilter/nf_conntrack_proto_sctp.c b/net/netfilter/nf_conntrack_proto_sctp.c
index cadeb22a48f2..8453e92936ac 100644
--- a/net/netfilter/nf_conntrack_proto_sctp.c
+++ b/net/netfilter/nf_conntrack_proto_sctp.c
@@ -58,8 +58,8 @@ static const unsigned int sctp_timeouts[SCTP_CONNTRACK_MAX] = {
[SCTP_CONNTRACK_COOKIE_WAIT] = 3 SECS,
[SCTP_CONNTRACK_COOKIE_ECHOED] = 3 SECS,
[SCTP_CONNTRACK_ESTABLISHED] = 5 DAYS,
- [SCTP_CONNTRACK_SHUTDOWN_SENT] = 300 SECS / 1000,
- [SCTP_CONNTRACK_SHUTDOWN_RECD] = 300 SECS / 1000,
+ [SCTP_CONNTRACK_SHUTDOWN_SENT] = 3 SECS,
+ [SCTP_CONNTRACK_SHUTDOWN_RECD] = 3 SECS,
[SCTP_CONNTRACK_SHUTDOWN_ACK_SENT] = 3 SECS,
[SCTP_CONNTRACK_HEARTBEAT_SENT] = 30 SECS,
[SCTP_CONNTRACK_HEARTBEAT_ACKED] = 210 SECS,
@@ -119,7 +119,7 @@ static const u8 sctp_conntracks[2][11][SCTP_CONNTRACK_MAX] = {
{
/* ORIGINAL */
/* sNO, sCL, sCW, sCE, sES, sSS, sSR, sSA, sHS, sHA */
-/* init */ {sCW, sCW, sCW, sCE, sES, sSS, sSR, sSA, sCW, sHA},
+/* init */ {sCW, sCW, sCW, sCE, sES, sCL, sCL, sSA, sCW, sHA},
/* init_ack */ {sCL, sCL, sCW, sCE, sES, sSS, sSR, sSA, sCL, sHA},
/* abort */ {sCL, sCL, sCL, sCL, sCL, sCL, sCL, sCL, sCL, sCL},
/* shutdown */ {sCL, sCL, sCW, sCE, sSS, sSS, sSR, sSA, sCL, sSS},
diff --git a/net/netfilter/nf_queue.c b/net/netfilter/nf_queue.c
index 84c59de27882..b3a0385290a1 100644
--- a/net/netfilter/nf_queue.c
+++ b/net/netfilter/nf_queue.c
@@ -93,8 +93,6 @@ bool nf_queue_entry_get_refs(struct nf_queue_entry *entry)
dev_hold(state->in);
if (state->out)
dev_hold(state->out);
- if (state->sk)
- sock_hold(state->sk);
#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
if (entry->skb->nf_bridge) {
struct net_device *physdev;
diff --git a/net/netfilter/nft_dynset.c b/net/netfilter/nft_dynset.c
index 651c9784904c..a4c6aba7da7e 100644
--- a/net/netfilter/nft_dynset.c
+++ b/net/netfilter/nft_dynset.c
@@ -144,6 +144,9 @@ static int nft_dynset_init(const struct nft_ctx *ctx,
if (IS_ERR(set))
return PTR_ERR(set);
+ if (set->flags & NFT_SET_OBJECT)
+ return -EOPNOTSUPP;
+
if (set->ops->update == NULL)
return -EOPNOTSUPP;
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 5a0e71873e24..8105563593b6 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1438,10 +1438,28 @@ static int tc_get_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
return 0;
}
+static bool req_create_or_replace(struct nlmsghdr *n)
+{
+ return (n->nlmsg_flags & NLM_F_CREATE &&
+ n->nlmsg_flags & NLM_F_REPLACE);
+}
+
+static bool req_create_exclusive(struct nlmsghdr *n)
+{
+ return (n->nlmsg_flags & NLM_F_CREATE &&
+ n->nlmsg_flags & NLM_F_EXCL);
+}
+
+static bool req_change(struct nlmsghdr *n)
+{
+ return (!(n->nlmsg_flags & NLM_F_CREATE) &&
+ !(n->nlmsg_flags & NLM_F_REPLACE) &&
+ !(n->nlmsg_flags & NLM_F_EXCL));
+}
+
/*
* Create/change qdisc.
*/
-
static int tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
struct netlink_ext_ack *extack)
{
@@ -1538,27 +1556,35 @@ static int tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
*
* We know, that some child q is already
* attached to this parent and have choice:
- * either to change it or to create/graft new one.
+ * 1) change it or 2) create/graft new one.
+ * If the requested qdisc kind is different
+ * than the existing one, then we choose graft.
+ * If they are the same then this is "change"
+ * operation - just let it fallthrough..
*
* 1. We are allowed to create/graft only
- * if CREATE and REPLACE flags are set.
+ * if the request is explicitly stating
+ * "please create if it doesn't exist".
*
- * 2. If EXCL is set, requestor wanted to say,
- * that qdisc tcm_handle is not expected
+ * 2. If the request is to exclusive create
+ * then the qdisc tcm_handle is not expected
* to exist, so that we choose create/graft too.
*
* 3. The last case is when no flags are set.
+ * This will happen when for example tc
+ * utility issues a "change" command.
* Alas, it is sort of hole in API, we
* cannot decide what to do unambiguously.
- * For now we select create/graft, if
- * user gave KIND, which does not match existing.
+ * For now we select create/graft.
*/
- if ((n->nlmsg_flags & NLM_F_CREATE) &&
- (n->nlmsg_flags & NLM_F_REPLACE) &&
- ((n->nlmsg_flags & NLM_F_EXCL) ||
- (tca[TCA_KIND] &&
- nla_strcmp(tca[TCA_KIND], q->ops->id))))
- goto create_n_graft;
+ if (tca[TCA_KIND] &&
+ nla_strcmp(tca[TCA_KIND], q->ops->id)) {
+ if (req_create_or_replace(n) ||
+ req_create_exclusive(n))
+ goto create_n_graft;
+ else if (req_change(n))
+ goto create_n_graft2;
+ }
}
}
} else {
@@ -1592,6 +1618,7 @@ static int tc_modify_qdisc(struct sk_buff *skb, struct nlmsghdr *n,
NL_SET_ERR_MSG(extack, "Qdisc not found. To create specify NLM_F_CREATE flag");
return -ENOENT;
}
+create_n_graft2:
if (clid == TC_H_INGRESS) {
if (dev_ingress_queue(dev)) {
q = qdisc_create(dev, dev_ingress_queue(dev), p,
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index baa825751c39..432dccd37506 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -112,7 +112,7 @@ struct percpu_counter sctp_sockets_allocated;
static void sctp_enter_memory_pressure(struct sock *sk)
{
- sctp_memory_pressure = 1;
+ WRITE_ONCE(sctp_memory_pressure, 1);
}
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 8971341c4f8a..402060cf3198 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -1984,6 +1984,7 @@ static ssize_t unix_stream_sendpage(struct socket *socket, struct page *page,
if (false) {
alloc_skb:
+ spin_unlock(&other->sk_receive_queue.lock);
unix_state_unlock(other);
mutex_unlock(&unix_sk(other)->iolock);
newskb = sock_alloc_send_pskb(sk, 0, 0, flags & MSG_DONTWAIT,
@@ -2023,6 +2024,7 @@ static ssize_t unix_stream_sendpage(struct socket *socket, struct page *page,
init_scm = false;
}
+ spin_lock(&other->sk_receive_queue.lock);
skb = skb_peek_tail(&other->sk_receive_queue);
if (tail && tail == skb) {
skb = newskb;
@@ -2053,14 +2055,11 @@ static ssize_t unix_stream_sendpage(struct socket *socket, struct page *page,
refcount_add(size, &sk->sk_wmem_alloc);
if (newskb) {
- err = unix_scm_to_skb(&scm, skb, false);
- if (err)
- goto err_state_unlock;
- spin_lock(&other->sk_receive_queue.lock);
+ unix_scm_to_skb(&scm, skb, false);
__skb_queue_tail(&other->sk_receive_queue, newskb);
- spin_unlock(&other->sk_receive_queue.lock);
}
+ spin_unlock(&other->sk_receive_queue.lock);
unix_state_unlock(other);
mutex_unlock(&unix_sk(other)->iolock);
diff --git a/net/xfrm/Makefile b/net/xfrm/Makefile
index fbc4552d17b8..6e5e307f985e 100644
--- a/net/xfrm/Makefile
+++ b/net/xfrm/Makefile
@@ -3,6 +3,8 @@
# Makefile for the XFRM subsystem.
#
+xfrm_interface-$(CONFIG_XFRM_INTERFACE) += xfrm_interface_core.o
+
obj-$(CONFIG_XFRM) := xfrm_policy.o xfrm_state.o xfrm_hash.o \
xfrm_input.o xfrm_output.o \
xfrm_sysctl.o xfrm_replay.o xfrm_device.o
diff --git a/net/xfrm/xfrm_interface.c b/net/xfrm/xfrm_interface.c
deleted file mode 100644
index 3c642328a117..000000000000
--- a/net/xfrm/xfrm_interface.c
+++ /dev/null
@@ -1,996 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * XFRM virtual interface
- *
- * Copyright (C) 2018 secunet Security Networks AG
- *
- * Author:
- * Steffen Klassert <steffen.klassert@...unet.com>
- */
-
-#include <linux/module.h>
-#include <linux/capability.h>
-#include <linux/errno.h>
-#include <linux/types.h>
-#include <linux/sockios.h>
-#include <linux/icmp.h>
-#include <linux/if.h>
-#include <linux/in.h>
-#include <linux/ip.h>
-#include <linux/net.h>
-#include <linux/in6.h>
-#include <linux/netdevice.h>
-#include <linux/if_link.h>
-#include <linux/if_arp.h>
-#include <linux/icmpv6.h>
-#include <linux/init.h>
-#include <linux/route.h>
-#include <linux/rtnetlink.h>
-#include <linux/netfilter_ipv6.h>
-#include <linux/slab.h>
-#include <linux/hash.h>
-
-#include <linux/uaccess.h>
-#include <linux/atomic.h>
-
-#include <net/icmp.h>
-#include <net/ip.h>
-#include <net/ipv6.h>
-#include <net/ip6_route.h>
-#include <net/addrconf.h>
-#include <net/xfrm.h>
-#include <net/net_namespace.h>
-#include <net/netns/generic.h>
-#include <linux/etherdevice.h>
-
-static int xfrmi_dev_init(struct net_device *dev);
-static void xfrmi_dev_setup(struct net_device *dev);
-static struct rtnl_link_ops xfrmi_link_ops __read_mostly;
-static unsigned int xfrmi_net_id __read_mostly;
-
-struct xfrmi_net {
- /* lists for storing interfaces in use */
- struct xfrm_if __rcu *xfrmi[1];
-};
-
-#define for_each_xfrmi_rcu(start, xi) \
- for (xi = rcu_dereference(start); xi; xi = rcu_dereference(xi->next))
-
-static struct xfrm_if *xfrmi_lookup(struct net *net, struct xfrm_state *x)
-{
- struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id);
- struct xfrm_if *xi;
-
- for_each_xfrmi_rcu(xfrmn->xfrmi[0], xi) {
- if (x->if_id == xi->p.if_id &&
- (xi->dev->flags & IFF_UP))
- return xi;
- }
-
- return NULL;
-}
-
-static struct xfrm_if *xfrmi_decode_session(struct sk_buff *skb,
- unsigned short family)
-{
- struct xfrmi_net *xfrmn;
- struct xfrm_if *xi;
- int ifindex = 0;
-
- if (!secpath_exists(skb) || !skb->dev)
- return NULL;
-
- switch (family) {
- case AF_INET6:
- ifindex = inet6_sdif(skb);
- break;
- case AF_INET:
- ifindex = inet_sdif(skb);
- break;
- }
- if (!ifindex)
- ifindex = skb->dev->ifindex;
-
- xfrmn = net_generic(xs_net(xfrm_input_state(skb)), xfrmi_net_id);
-
- for_each_xfrmi_rcu(xfrmn->xfrmi[0], xi) {
- if (ifindex == xi->dev->ifindex &&
- (xi->dev->flags & IFF_UP))
- return xi;
- }
-
- return NULL;
-}
-
-static void xfrmi_link(struct xfrmi_net *xfrmn, struct xfrm_if *xi)
-{
- struct xfrm_if __rcu **xip = &xfrmn->xfrmi[0];
-
- rcu_assign_pointer(xi->next , rtnl_dereference(*xip));
- rcu_assign_pointer(*xip, xi);
-}
-
-static void xfrmi_unlink(struct xfrmi_net *xfrmn, struct xfrm_if *xi)
-{
- struct xfrm_if __rcu **xip;
- struct xfrm_if *iter;
-
- for (xip = &xfrmn->xfrmi[0];
- (iter = rtnl_dereference(*xip)) != NULL;
- xip = &iter->next) {
- if (xi == iter) {
- rcu_assign_pointer(*xip, xi->next);
- break;
- }
- }
-}
-
-static void xfrmi_dev_free(struct net_device *dev)
-{
- struct xfrm_if *xi = netdev_priv(dev);
-
- gro_cells_destroy(&xi->gro_cells);
- free_percpu(dev->tstats);
-}
-
-static int xfrmi_create(struct net_device *dev)
-{
- struct xfrm_if *xi = netdev_priv(dev);
- struct net *net = dev_net(dev);
- struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id);
- int err;
-
- dev->rtnl_link_ops = &xfrmi_link_ops;
- err = register_netdevice(dev);
- if (err < 0)
- goto out;
-
- dev_hold(dev);
- xfrmi_link(xfrmn, xi);
-
- return 0;
-
-out:
- return err;
-}
-
-static struct xfrm_if *xfrmi_locate(struct net *net, struct xfrm_if_parms *p)
-{
- struct xfrm_if __rcu **xip;
- struct xfrm_if *xi;
- struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id);
-
- for (xip = &xfrmn->xfrmi[0];
- (xi = rtnl_dereference(*xip)) != NULL;
- xip = &xi->next)
- if (xi->p.if_id == p->if_id)
- return xi;
-
- return NULL;
-}
-
-static void xfrmi_dev_uninit(struct net_device *dev)
-{
- struct xfrm_if *xi = netdev_priv(dev);
- struct xfrmi_net *xfrmn = net_generic(xi->net, xfrmi_net_id);
-
- xfrmi_unlink(xfrmn, xi);
- dev_put(dev);
-}
-
-static void xfrmi_scrub_packet(struct sk_buff *skb, bool xnet)
-{
- skb->tstamp = 0;
- skb->pkt_type = PACKET_HOST;
- skb->skb_iif = 0;
- skb->ignore_df = 0;
- skb_dst_drop(skb);
- nf_reset(skb);
- nf_reset_trace(skb);
-
- if (!xnet)
- return;
-
- ipvs_reset(skb);
- secpath_reset(skb);
- skb_orphan(skb);
- skb->mark = 0;
-}
-
-static int xfrmi_rcv_cb(struct sk_buff *skb, int err)
-{
- struct pcpu_sw_netstats *tstats;
- struct xfrm_mode *inner_mode;
- struct net_device *dev;
- struct xfrm_state *x;
- struct xfrm_if *xi;
- bool xnet;
-
- if (err && !skb->sp)
- return 0;
-
- x = xfrm_input_state(skb);
-
- xi = xfrmi_lookup(xs_net(x), x);
- if (!xi)
- return 1;
-
- dev = xi->dev;
- skb->dev = dev;
-
- if (err) {
- dev->stats.rx_errors++;
- dev->stats.rx_dropped++;
-
- return 0;
- }
-
- xnet = !net_eq(xi->net, dev_net(skb->dev));
-
- if (xnet) {
- inner_mode = x->inner_mode;
-
- if (x->sel.family == AF_UNSPEC) {
- inner_mode = xfrm_ip2inner_mode(x, XFRM_MODE_SKB_CB(skb)->protocol);
- if (inner_mode == NULL) {
- XFRM_INC_STATS(dev_net(skb->dev),
- LINUX_MIB_XFRMINSTATEMODEERROR);
- return -EINVAL;
- }
- }
-
- if (!xfrm_policy_check(NULL, XFRM_POLICY_IN, skb,
- inner_mode->afinfo->family))
- return -EPERM;
- }
-
- xfrmi_scrub_packet(skb, xnet);
-
- tstats = this_cpu_ptr(dev->tstats);
-
- u64_stats_update_begin(&tstats->syncp);
- tstats->rx_packets++;
- tstats->rx_bytes += skb->len;
- u64_stats_update_end(&tstats->syncp);
-
- return 0;
-}
-
-static int
-xfrmi_xmit2(struct sk_buff *skb, struct net_device *dev, struct flowi *fl)
-{
- struct xfrm_if *xi = netdev_priv(dev);
- struct net_device_stats *stats = &xi->dev->stats;
- struct dst_entry *dst = skb_dst(skb);
- unsigned int length = skb->len;
- struct net_device *tdev;
- struct xfrm_state *x;
- int err = -1;
- int mtu;
-
- dst_hold(dst);
- dst = xfrm_lookup_with_ifid(xi->net, dst, fl, NULL, 0, xi->p.if_id);
- if (IS_ERR(dst)) {
- err = PTR_ERR(dst);
- dst = NULL;
- goto tx_err_link_failure;
- }
-
- x = dst->xfrm;
- if (!x)
- goto tx_err_link_failure;
-
- if (x->if_id != xi->p.if_id)
- goto tx_err_link_failure;
-
- tdev = dst->dev;
-
- if (tdev == dev) {
- stats->collisions++;
- net_warn_ratelimited("%s: Local routing loop detected!\n",
- dev->name);
- goto tx_err_dst_release;
- }
-
- mtu = dst_mtu(dst);
- if (skb->len > mtu) {
- skb_dst_update_pmtu_no_confirm(skb, mtu);
-
- if (skb->protocol == htons(ETH_P_IPV6)) {
- if (mtu < IPV6_MIN_MTU)
- mtu = IPV6_MIN_MTU;
-
- if (skb->len > 1280)
- icmpv6_ndo_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
- else
- goto xmit;
- } else {
- if (!(ip_hdr(skb)->frag_off & htons(IP_DF)))
- goto xmit;
- icmp_ndo_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
- htonl(mtu));
- }
-
- dst_release(dst);
- return -EMSGSIZE;
- }
-
-xmit:
- xfrmi_scrub_packet(skb, !net_eq(xi->net, dev_net(dev)));
- skb_dst_set(skb, dst);
- skb->dev = tdev;
-
- err = dst_output(xi->net, skb->sk, skb);
- if (net_xmit_eval(err) == 0) {
- struct pcpu_sw_netstats *tstats = this_cpu_ptr(dev->tstats);
-
- u64_stats_update_begin(&tstats->syncp);
- tstats->tx_bytes += length;
- tstats->tx_packets++;
- u64_stats_update_end(&tstats->syncp);
- } else {
- stats->tx_errors++;
- stats->tx_aborted_errors++;
- }
-
- return 0;
-tx_err_link_failure:
- stats->tx_carrier_errors++;
- dst_link_failure(skb);
-tx_err_dst_release:
- dst_release(dst);
- return err;
-}
-
-static netdev_tx_t xfrmi_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct xfrm_if *xi = netdev_priv(dev);
- struct net_device_stats *stats = &xi->dev->stats;
- struct dst_entry *dst = skb_dst(skb);
- struct flowi fl;
- int ret;
-
- memset(&fl, 0, sizeof(fl));
-
- switch (skb->protocol) {
- case htons(ETH_P_IPV6):
- xfrm_decode_session(skb, &fl, AF_INET6);
- memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));
- if (!dst) {
- fl.u.ip6.flowi6_oif = dev->ifindex;
- fl.u.ip6.flowi6_flags |= FLOWI_FLAG_ANYSRC;
- dst = ip6_route_output(dev_net(dev), NULL, &fl.u.ip6);
- if (dst->error) {
- dst_release(dst);
- stats->tx_carrier_errors++;
- goto tx_err;
- }
- skb_dst_set(skb, dst);
- }
- break;
- case htons(ETH_P_IP):
- xfrm_decode_session(skb, &fl, AF_INET);
- memset(IPCB(skb), 0, sizeof(*IPCB(skb)));
- if (!dst) {
- struct rtable *rt;
-
- fl.u.ip4.flowi4_oif = dev->ifindex;
- fl.u.ip4.flowi4_flags |= FLOWI_FLAG_ANYSRC;
- rt = __ip_route_output_key(dev_net(dev), &fl.u.ip4);
- if (IS_ERR(rt)) {
- stats->tx_carrier_errors++;
- goto tx_err;
- }
- skb_dst_set(skb, &rt->dst);
- }
- break;
- default:
- goto tx_err;
- }
-
- fl.flowi_oif = xi->p.link;
-
- ret = xfrmi_xmit2(skb, dev, &fl);
- if (ret < 0)
- goto tx_err;
-
- return NETDEV_TX_OK;
-
-tx_err:
- stats->tx_errors++;
- stats->tx_dropped++;
- kfree_skb(skb);
- return NETDEV_TX_OK;
-}
-
-static int xfrmi4_err(struct sk_buff *skb, u32 info)
-{
- const struct iphdr *iph = (const struct iphdr *)skb->data;
- struct net *net = dev_net(skb->dev);
- int protocol = iph->protocol;
- struct ip_comp_hdr *ipch;
- struct ip_esp_hdr *esph;
- struct ip_auth_hdr *ah ;
- struct xfrm_state *x;
- struct xfrm_if *xi;
- __be32 spi;
-
- switch (protocol) {
- case IPPROTO_ESP:
- esph = (struct ip_esp_hdr *)(skb->data+(iph->ihl<<2));
- spi = esph->spi;
- break;
- case IPPROTO_AH:
- ah = (struct ip_auth_hdr *)(skb->data+(iph->ihl<<2));
- spi = ah->spi;
- break;
- case IPPROTO_COMP:
- ipch = (struct ip_comp_hdr *)(skb->data+(iph->ihl<<2));
- spi = htonl(ntohs(ipch->cpi));
- break;
- default:
- return 0;
- }
-
- switch (icmp_hdr(skb)->type) {
- case ICMP_DEST_UNREACH:
- if (icmp_hdr(skb)->code != ICMP_FRAG_NEEDED)
- return 0;
- case ICMP_REDIRECT:
- break;
- default:
- return 0;
- }
-
- x = xfrm_state_lookup(net, skb->mark, (const xfrm_address_t *)&iph->daddr,
- spi, protocol, AF_INET);
- if (!x)
- return 0;
-
- xi = xfrmi_lookup(net, x);
- if (!xi) {
- xfrm_state_put(x);
- return -1;
- }
-
- if (icmp_hdr(skb)->type == ICMP_DEST_UNREACH)
- ipv4_update_pmtu(skb, net, info, 0, 0, protocol, 0);
- else
- ipv4_redirect(skb, net, 0, 0, protocol, 0);
- xfrm_state_put(x);
-
- return 0;
-}
-
-static int xfrmi6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
- u8 type, u8 code, int offset, __be32 info)
-{
- const struct ipv6hdr *iph = (const struct ipv6hdr *)skb->data;
- struct net *net = dev_net(skb->dev);
- int protocol = iph->nexthdr;
- struct ip_comp_hdr *ipch;
- struct ip_esp_hdr *esph;
- struct ip_auth_hdr *ah;
- struct xfrm_state *x;
- struct xfrm_if *xi;
- __be32 spi;
-
- switch (protocol) {
- case IPPROTO_ESP:
- esph = (struct ip_esp_hdr *)(skb->data + offset);
- spi = esph->spi;
- break;
- case IPPROTO_AH:
- ah = (struct ip_auth_hdr *)(skb->data + offset);
- spi = ah->spi;
- break;
- case IPPROTO_COMP:
- ipch = (struct ip_comp_hdr *)(skb->data + offset);
- spi = htonl(ntohs(ipch->cpi));
- break;
- default:
- return 0;
- }
-
- if (type != ICMPV6_PKT_TOOBIG &&
- type != NDISC_REDIRECT)
- return 0;
-
- x = xfrm_state_lookup(net, skb->mark, (const xfrm_address_t *)&iph->daddr,
- spi, protocol, AF_INET6);
- if (!x)
- return 0;
-
- xi = xfrmi_lookup(net, x);
- if (!xi) {
- xfrm_state_put(x);
- return -1;
- }
-
- if (type == NDISC_REDIRECT)
- ip6_redirect(skb, net, skb->dev->ifindex, 0,
- sock_net_uid(net, NULL));
- else
- ip6_update_pmtu(skb, net, info, 0, 0, sock_net_uid(net, NULL));
- xfrm_state_put(x);
-
- return 0;
-}
-
-static int xfrmi_change(struct xfrm_if *xi, const struct xfrm_if_parms *p)
-{
- if (xi->p.link != p->link)
- return -EINVAL;
-
- xi->p.if_id = p->if_id;
-
- return 0;
-}
-
-static int xfrmi_update(struct xfrm_if *xi, struct xfrm_if_parms *p)
-{
- struct net *net = xi->net;
- struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id);
- int err;
-
- xfrmi_unlink(xfrmn, xi);
- synchronize_net();
- err = xfrmi_change(xi, p);
- xfrmi_link(xfrmn, xi);
- netdev_state_change(xi->dev);
- return err;
-}
-
-static void xfrmi_get_stats64(struct net_device *dev,
- struct rtnl_link_stats64 *s)
-{
- int cpu;
-
- if (!dev->tstats)
- return;
-
- for_each_possible_cpu(cpu) {
- struct pcpu_sw_netstats *stats;
- struct pcpu_sw_netstats tmp;
- int start;
-
- stats = per_cpu_ptr(dev->tstats, cpu);
- do {
- start = u64_stats_fetch_begin_irq(&stats->syncp);
- tmp.rx_packets = stats->rx_packets;
- tmp.rx_bytes = stats->rx_bytes;
- tmp.tx_packets = stats->tx_packets;
- tmp.tx_bytes = stats->tx_bytes;
- } while (u64_stats_fetch_retry_irq(&stats->syncp, start));
-
- s->rx_packets += tmp.rx_packets;
- s->rx_bytes += tmp.rx_bytes;
- s->tx_packets += tmp.tx_packets;
- s->tx_bytes += tmp.tx_bytes;
- }
-
- s->rx_dropped = dev->stats.rx_dropped;
- s->tx_dropped = dev->stats.tx_dropped;
-}
-
-static int xfrmi_get_iflink(const struct net_device *dev)
-{
- struct xfrm_if *xi = netdev_priv(dev);
-
- return xi->p.link;
-}
-
-
-static const struct net_device_ops xfrmi_netdev_ops = {
- .ndo_init = xfrmi_dev_init,
- .ndo_uninit = xfrmi_dev_uninit,
- .ndo_start_xmit = xfrmi_xmit,
- .ndo_get_stats64 = xfrmi_get_stats64,
- .ndo_get_iflink = xfrmi_get_iflink,
-};
-
-static void xfrmi_dev_setup(struct net_device *dev)
-{
- dev->netdev_ops = &xfrmi_netdev_ops;
- dev->type = ARPHRD_NONE;
- dev->mtu = ETH_DATA_LEN;
- dev->min_mtu = ETH_MIN_MTU;
- dev->max_mtu = IP_MAX_MTU;
- dev->flags = IFF_NOARP;
- dev->needs_free_netdev = true;
- dev->priv_destructor = xfrmi_dev_free;
- netif_keep_dst(dev);
-
- eth_broadcast_addr(dev->broadcast);
-}
-
-static int xfrmi_dev_init(struct net_device *dev)
-{
- struct xfrm_if *xi = netdev_priv(dev);
- struct net_device *phydev = __dev_get_by_index(xi->net, xi->p.link);
- int err;
-
- dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
- if (!dev->tstats)
- return -ENOMEM;
-
- err = gro_cells_init(&xi->gro_cells, dev);
- if (err) {
- free_percpu(dev->tstats);
- return err;
- }
-
- dev->features |= NETIF_F_LLTX;
-
- if (phydev) {
- dev->needed_headroom = phydev->needed_headroom;
- dev->needed_tailroom = phydev->needed_tailroom;
-
- if (is_zero_ether_addr(dev->dev_addr))
- eth_hw_addr_inherit(dev, phydev);
- if (is_zero_ether_addr(dev->broadcast))
- memcpy(dev->broadcast, phydev->broadcast,
- dev->addr_len);
- } else {
- eth_hw_addr_random(dev);
- eth_broadcast_addr(dev->broadcast);
- }
-
- return 0;
-}
-
-static int xfrmi_validate(struct nlattr *tb[], struct nlattr *data[],
- struct netlink_ext_ack *extack)
-{
- return 0;
-}
-
-static void xfrmi_netlink_parms(struct nlattr *data[],
- struct xfrm_if_parms *parms)
-{
- memset(parms, 0, sizeof(*parms));
-
- if (!data)
- return;
-
- if (data[IFLA_XFRM_LINK])
- parms->link = nla_get_u32(data[IFLA_XFRM_LINK]);
-
- if (data[IFLA_XFRM_IF_ID])
- parms->if_id = nla_get_u32(data[IFLA_XFRM_IF_ID]);
-}
-
-static int xfrmi_newlink(struct net *src_net, struct net_device *dev,
- struct nlattr *tb[], struct nlattr *data[],
- struct netlink_ext_ack *extack)
-{
- struct net *net = dev_net(dev);
- struct xfrm_if_parms p = {};
- struct xfrm_if *xi;
- int err;
-
- xfrmi_netlink_parms(data, &p);
- if (!p.if_id) {
- NL_SET_ERR_MSG(extack, "if_id must be non zero");
- return -EINVAL;
- }
-
- xi = xfrmi_locate(net, &p);
- if (xi)
- return -EEXIST;
-
- xi = netdev_priv(dev);
- xi->p = p;
- xi->net = net;
- xi->dev = dev;
-
- err = xfrmi_create(dev);
- return err;
-}
-
-static void xfrmi_dellink(struct net_device *dev, struct list_head *head)
-{
- unregister_netdevice_queue(dev, head);
-}
-
-static int xfrmi_changelink(struct net_device *dev, struct nlattr *tb[],
- struct nlattr *data[],
- struct netlink_ext_ack *extack)
-{
- struct xfrm_if *xi = netdev_priv(dev);
- struct net *net = xi->net;
- struct xfrm_if_parms p = {};
-
- xfrmi_netlink_parms(data, &p);
- if (!p.if_id) {
- NL_SET_ERR_MSG(extack, "if_id must be non zero");
- return -EINVAL;
- }
-
- xi = xfrmi_locate(net, &p);
- if (!xi) {
- xi = netdev_priv(dev);
- } else {
- if (xi->dev != dev)
- return -EEXIST;
- }
-
- return xfrmi_update(xi, &p);
-}
-
-static size_t xfrmi_get_size(const struct net_device *dev)
-{
- return
- /* IFLA_XFRM_LINK */
- nla_total_size(4) +
- /* IFLA_XFRM_IF_ID */
- nla_total_size(4) +
- 0;
-}
-
-static int xfrmi_fill_info(struct sk_buff *skb, const struct net_device *dev)
-{
- struct xfrm_if *xi = netdev_priv(dev);
- struct xfrm_if_parms *parm = &xi->p;
-
- if (nla_put_u32(skb, IFLA_XFRM_LINK, parm->link) ||
- nla_put_u32(skb, IFLA_XFRM_IF_ID, parm->if_id))
- goto nla_put_failure;
- return 0;
-
-nla_put_failure:
- return -EMSGSIZE;
-}
-
-struct net *xfrmi_get_link_net(const struct net_device *dev)
-{
- struct xfrm_if *xi = netdev_priv(dev);
-
- return xi->net;
-}
-
-static const struct nla_policy xfrmi_policy[IFLA_XFRM_MAX + 1] = {
- [IFLA_XFRM_LINK] = { .type = NLA_U32 },
- [IFLA_XFRM_IF_ID] = { .type = NLA_U32 },
-};
-
-static struct rtnl_link_ops xfrmi_link_ops __read_mostly = {
- .kind = "xfrm",
- .maxtype = IFLA_XFRM_MAX,
- .policy = xfrmi_policy,
- .priv_size = sizeof(struct xfrm_if),
- .setup = xfrmi_dev_setup,
- .validate = xfrmi_validate,
- .newlink = xfrmi_newlink,
- .dellink = xfrmi_dellink,
- .changelink = xfrmi_changelink,
- .get_size = xfrmi_get_size,
- .fill_info = xfrmi_fill_info,
- .get_link_net = xfrmi_get_link_net,
-};
-
-static void __net_exit xfrmi_destroy_interfaces(struct xfrmi_net *xfrmn)
-{
- struct xfrm_if *xi;
- LIST_HEAD(list);
-
- xi = rtnl_dereference(xfrmn->xfrmi[0]);
- if (!xi)
- return;
-
- unregister_netdevice_queue(xi->dev, &list);
- unregister_netdevice_many(&list);
-}
-
-static int __net_init xfrmi_init_net(struct net *net)
-{
- return 0;
-}
-
-static void __net_exit xfrmi_exit_net(struct net *net)
-{
- struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id);
-
- rtnl_lock();
- xfrmi_destroy_interfaces(xfrmn);
- rtnl_unlock();
-}
-
-static void __net_exit xfrmi_exit_batch_net(struct list_head *net_exit_list)
-{
- struct net *net;
- LIST_HEAD(list);
-
- rtnl_lock();
- list_for_each_entry(net, net_exit_list, exit_list) {
- struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id);
- struct xfrm_if __rcu **xip;
- struct xfrm_if *xi;
-
- for (xip = &xfrmn->xfrmi[0];
- (xi = rtnl_dereference(*xip)) != NULL;
- xip = &xi->next)
- unregister_netdevice_queue(xi->dev, &list);
- }
- unregister_netdevice_many(&list);
- rtnl_unlock();
-}
-
-static struct pernet_operations xfrmi_net_ops = {
- .exit_batch = xfrmi_exit_batch_net,
- .init = xfrmi_init_net,
- .exit = xfrmi_exit_net,
- .id = &xfrmi_net_id,
- .size = sizeof(struct xfrmi_net),
-};
-
-static struct xfrm6_protocol xfrmi_esp6_protocol __read_mostly = {
- .handler = xfrm6_rcv,
- .cb_handler = xfrmi_rcv_cb,
- .err_handler = xfrmi6_err,
- .priority = 10,
-};
-
-static struct xfrm6_protocol xfrmi_ah6_protocol __read_mostly = {
- .handler = xfrm6_rcv,
- .cb_handler = xfrmi_rcv_cb,
- .err_handler = xfrmi6_err,
- .priority = 10,
-};
-
-static struct xfrm6_protocol xfrmi_ipcomp6_protocol __read_mostly = {
- .handler = xfrm6_rcv,
- .cb_handler = xfrmi_rcv_cb,
- .err_handler = xfrmi6_err,
- .priority = 10,
-};
-
-static struct xfrm4_protocol xfrmi_esp4_protocol __read_mostly = {
- .handler = xfrm4_rcv,
- .input_handler = xfrm_input,
- .cb_handler = xfrmi_rcv_cb,
- .err_handler = xfrmi4_err,
- .priority = 10,
-};
-
-static struct xfrm4_protocol xfrmi_ah4_protocol __read_mostly = {
- .handler = xfrm4_rcv,
- .input_handler = xfrm_input,
- .cb_handler = xfrmi_rcv_cb,
- .err_handler = xfrmi4_err,
- .priority = 10,
-};
-
-static struct xfrm4_protocol xfrmi_ipcomp4_protocol __read_mostly = {
- .handler = xfrm4_rcv,
- .input_handler = xfrm_input,
- .cb_handler = xfrmi_rcv_cb,
- .err_handler = xfrmi4_err,
- .priority = 10,
-};
-
-static int __init xfrmi4_init(void)
-{
- int err;
-
- err = xfrm4_protocol_register(&xfrmi_esp4_protocol, IPPROTO_ESP);
- if (err < 0)
- goto xfrm_proto_esp_failed;
- err = xfrm4_protocol_register(&xfrmi_ah4_protocol, IPPROTO_AH);
- if (err < 0)
- goto xfrm_proto_ah_failed;
- err = xfrm4_protocol_register(&xfrmi_ipcomp4_protocol, IPPROTO_COMP);
- if (err < 0)
- goto xfrm_proto_comp_failed;
-
- return 0;
-
-xfrm_proto_comp_failed:
- xfrm4_protocol_deregister(&xfrmi_ah4_protocol, IPPROTO_AH);
-xfrm_proto_ah_failed:
- xfrm4_protocol_deregister(&xfrmi_esp4_protocol, IPPROTO_ESP);
-xfrm_proto_esp_failed:
- return err;
-}
-
-static void xfrmi4_fini(void)
-{
- xfrm4_protocol_deregister(&xfrmi_ipcomp4_protocol, IPPROTO_COMP);
- xfrm4_protocol_deregister(&xfrmi_ah4_protocol, IPPROTO_AH);
- xfrm4_protocol_deregister(&xfrmi_esp4_protocol, IPPROTO_ESP);
-}
-
-static int __init xfrmi6_init(void)
-{
- int err;
-
- err = xfrm6_protocol_register(&xfrmi_esp6_protocol, IPPROTO_ESP);
- if (err < 0)
- goto xfrm_proto_esp_failed;
- err = xfrm6_protocol_register(&xfrmi_ah6_protocol, IPPROTO_AH);
- if (err < 0)
- goto xfrm_proto_ah_failed;
- err = xfrm6_protocol_register(&xfrmi_ipcomp6_protocol, IPPROTO_COMP);
- if (err < 0)
- goto xfrm_proto_comp_failed;
-
- return 0;
-
-xfrm_proto_comp_failed:
- xfrm6_protocol_deregister(&xfrmi_ah6_protocol, IPPROTO_AH);
-xfrm_proto_ah_failed:
- xfrm6_protocol_deregister(&xfrmi_esp6_protocol, IPPROTO_ESP);
-xfrm_proto_esp_failed:
- return err;
-}
-
-static void xfrmi6_fini(void)
-{
- xfrm6_protocol_deregister(&xfrmi_ipcomp6_protocol, IPPROTO_COMP);
- xfrm6_protocol_deregister(&xfrmi_ah6_protocol, IPPROTO_AH);
- xfrm6_protocol_deregister(&xfrmi_esp6_protocol, IPPROTO_ESP);
-}
-
-static const struct xfrm_if_cb xfrm_if_cb = {
- .decode_session = xfrmi_decode_session,
-};
-
-static int __init xfrmi_init(void)
-{
- const char *msg;
- int err;
-
- pr_info("IPsec XFRM device driver\n");
-
- msg = "tunnel device";
- err = register_pernet_device(&xfrmi_net_ops);
- if (err < 0)
- goto pernet_dev_failed;
-
- msg = "xfrm4 protocols";
- err = xfrmi4_init();
- if (err < 0)
- goto xfrmi4_failed;
-
- msg = "xfrm6 protocols";
- err = xfrmi6_init();
- if (err < 0)
- goto xfrmi6_failed;
-
-
- msg = "netlink interface";
- err = rtnl_link_register(&xfrmi_link_ops);
- if (err < 0)
- goto rtnl_link_failed;
-
- xfrm_if_register_cb(&xfrm_if_cb);
-
- return err;
-
-rtnl_link_failed:
- xfrmi6_fini();
-xfrmi6_failed:
- xfrmi4_fini();
-xfrmi4_failed:
- unregister_pernet_device(&xfrmi_net_ops);
-pernet_dev_failed:
- pr_err("xfrmi init: failed to register %s\n", msg);
- return err;
-}
-
-static void __exit xfrmi_fini(void)
-{
- xfrm_if_unregister_cb();
- rtnl_link_unregister(&xfrmi_link_ops);
- xfrmi4_fini();
- xfrmi6_fini();
- unregister_pernet_device(&xfrmi_net_ops);
-}
-
-module_init(xfrmi_init);
-module_exit(xfrmi_fini);
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_RTNL_LINK("xfrm");
-MODULE_ALIAS_NETDEV("xfrm0");
-MODULE_AUTHOR("Steffen Klassert");
-MODULE_DESCRIPTION("XFRM virtual interface");
diff --git a/net/xfrm/xfrm_interface_core.c b/net/xfrm/xfrm_interface_core.c
new file mode 100644
index 000000000000..40081af62b68
--- /dev/null
+++ b/net/xfrm/xfrm_interface_core.c
@@ -0,0 +1,996 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * XFRM virtual interface
+ *
+ * Copyright (C) 2018 secunet Security Networks AG
+ *
+ * Author:
+ * Steffen Klassert <steffen.klassert@...unet.com>
+ */
+
+#include <linux/module.h>
+#include <linux/capability.h>
+#include <linux/errno.h>
+#include <linux/types.h>
+#include <linux/sockios.h>
+#include <linux/icmp.h>
+#include <linux/if.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/net.h>
+#include <linux/in6.h>
+#include <linux/netdevice.h>
+#include <linux/if_link.h>
+#include <linux/if_arp.h>
+#include <linux/icmpv6.h>
+#include <linux/init.h>
+#include <linux/route.h>
+#include <linux/rtnetlink.h>
+#include <linux/netfilter_ipv6.h>
+#include <linux/slab.h>
+#include <linux/hash.h>
+
+#include <linux/uaccess.h>
+#include <linux/atomic.h>
+
+#include <net/icmp.h>
+#include <net/ip.h>
+#include <net/ipv6.h>
+#include <net/ip6_route.h>
+#include <net/addrconf.h>
+#include <net/xfrm.h>
+#include <net/net_namespace.h>
+#include <net/netns/generic.h>
+#include <linux/etherdevice.h>
+
+static int xfrmi_dev_init(struct net_device *dev);
+static void xfrmi_dev_setup(struct net_device *dev);
+static struct rtnl_link_ops xfrmi_link_ops __read_mostly;
+static unsigned int xfrmi_net_id __read_mostly;
+
+struct xfrmi_net {
+ /* lists for storing interfaces in use */
+ struct xfrm_if __rcu *xfrmi[1];
+};
+
+#define for_each_xfrmi_rcu(start, xi) \
+ for (xi = rcu_dereference(start); xi; xi = rcu_dereference(xi->next))
+
+static struct xfrm_if *xfrmi_lookup(struct net *net, struct xfrm_state *x)
+{
+ struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id);
+ struct xfrm_if *xi;
+
+ for_each_xfrmi_rcu(xfrmn->xfrmi[0], xi) {
+ if (x->if_id == xi->p.if_id &&
+ (xi->dev->flags & IFF_UP))
+ return xi;
+ }
+
+ return NULL;
+}
+
+static struct xfrm_if *xfrmi_decode_session(struct sk_buff *skb,
+ unsigned short family)
+{
+ struct xfrmi_net *xfrmn;
+ struct xfrm_if *xi;
+ int ifindex = 0;
+
+ if (!secpath_exists(skb) || !skb->dev)
+ return NULL;
+
+ switch (family) {
+ case AF_INET6:
+ ifindex = inet6_sdif(skb);
+ break;
+ case AF_INET:
+ ifindex = inet_sdif(skb);
+ break;
+ }
+ if (!ifindex)
+ ifindex = skb->dev->ifindex;
+
+ xfrmn = net_generic(xs_net(xfrm_input_state(skb)), xfrmi_net_id);
+
+ for_each_xfrmi_rcu(xfrmn->xfrmi[0], xi) {
+ if (ifindex == xi->dev->ifindex &&
+ (xi->dev->flags & IFF_UP))
+ return xi;
+ }
+
+ return NULL;
+}
+
+static void xfrmi_link(struct xfrmi_net *xfrmn, struct xfrm_if *xi)
+{
+ struct xfrm_if __rcu **xip = &xfrmn->xfrmi[0];
+
+ rcu_assign_pointer(xi->next , rtnl_dereference(*xip));
+ rcu_assign_pointer(*xip, xi);
+}
+
+static void xfrmi_unlink(struct xfrmi_net *xfrmn, struct xfrm_if *xi)
+{
+ struct xfrm_if __rcu **xip;
+ struct xfrm_if *iter;
+
+ for (xip = &xfrmn->xfrmi[0];
+ (iter = rtnl_dereference(*xip)) != NULL;
+ xip = &iter->next) {
+ if (xi == iter) {
+ rcu_assign_pointer(*xip, xi->next);
+ break;
+ }
+ }
+}
+
+static void xfrmi_dev_free(struct net_device *dev)
+{
+ struct xfrm_if *xi = netdev_priv(dev);
+
+ gro_cells_destroy(&xi->gro_cells);
+ free_percpu(dev->tstats);
+}
+
+static int xfrmi_create(struct net_device *dev)
+{
+ struct xfrm_if *xi = netdev_priv(dev);
+ struct net *net = dev_net(dev);
+ struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id);
+ int err;
+
+ dev->rtnl_link_ops = &xfrmi_link_ops;
+ err = register_netdevice(dev);
+ if (err < 0)
+ goto out;
+
+ dev_hold(dev);
+ xfrmi_link(xfrmn, xi);
+
+ return 0;
+
+out:
+ return err;
+}
+
+static struct xfrm_if *xfrmi_locate(struct net *net, struct xfrm_if_parms *p)
+{
+ struct xfrm_if __rcu **xip;
+ struct xfrm_if *xi;
+ struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id);
+
+ for (xip = &xfrmn->xfrmi[0];
+ (xi = rtnl_dereference(*xip)) != NULL;
+ xip = &xi->next)
+ if (xi->p.if_id == p->if_id)
+ return xi;
+
+ return NULL;
+}
+
+static void xfrmi_dev_uninit(struct net_device *dev)
+{
+ struct xfrm_if *xi = netdev_priv(dev);
+ struct xfrmi_net *xfrmn = net_generic(xi->net, xfrmi_net_id);
+
+ xfrmi_unlink(xfrmn, xi);
+ dev_put(dev);
+}
+
+static void xfrmi_scrub_packet(struct sk_buff *skb, bool xnet)
+{
+ skb->tstamp = 0;
+ skb->pkt_type = PACKET_HOST;
+ skb->skb_iif = 0;
+ skb->ignore_df = 0;
+ skb_dst_drop(skb);
+ nf_reset(skb);
+ nf_reset_trace(skb);
+
+ if (!xnet)
+ return;
+
+ ipvs_reset(skb);
+ secpath_reset(skb);
+ skb_orphan(skb);
+ skb->mark = 0;
+}
+
+static int xfrmi_rcv_cb(struct sk_buff *skb, int err)
+{
+ struct pcpu_sw_netstats *tstats;
+ struct xfrm_mode *inner_mode;
+ struct net_device *dev;
+ struct xfrm_state *x;
+ struct xfrm_if *xi;
+ bool xnet;
+
+ if (err && !skb->sp)
+ return 0;
+
+ x = xfrm_input_state(skb);
+
+ xi = xfrmi_lookup(xs_net(x), x);
+ if (!xi)
+ return 1;
+
+ dev = xi->dev;
+ skb->dev = dev;
+
+ if (err) {
+ dev->stats.rx_errors++;
+ dev->stats.rx_dropped++;
+
+ return 0;
+ }
+
+ xnet = !net_eq(xi->net, dev_net(skb->dev));
+
+ if (xnet) {
+ inner_mode = x->inner_mode;
+
+ if (x->sel.family == AF_UNSPEC) {
+ inner_mode = xfrm_ip2inner_mode(x, XFRM_MODE_SKB_CB(skb)->protocol);
+ if (inner_mode == NULL) {
+ XFRM_INC_STATS(dev_net(skb->dev),
+ LINUX_MIB_XFRMINSTATEMODEERROR);
+ return -EINVAL;
+ }
+ }
+
+ if (!xfrm_policy_check(NULL, XFRM_POLICY_IN, skb,
+ inner_mode->afinfo->family))
+ return -EPERM;
+ }
+
+ xfrmi_scrub_packet(skb, xnet);
+
+ tstats = this_cpu_ptr(dev->tstats);
+
+ u64_stats_update_begin(&tstats->syncp);
+ tstats->rx_packets++;
+ tstats->rx_bytes += skb->len;
+ u64_stats_update_end(&tstats->syncp);
+
+ return 0;
+}
+
+static int
+xfrmi_xmit2(struct sk_buff *skb, struct net_device *dev, struct flowi *fl)
+{
+ struct xfrm_if *xi = netdev_priv(dev);
+ struct net_device_stats *stats = &xi->dev->stats;
+ struct dst_entry *dst = skb_dst(skb);
+ unsigned int length = skb->len;
+ struct net_device *tdev;
+ struct xfrm_state *x;
+ int err = -1;
+ int mtu;
+
+ dst_hold(dst);
+ dst = xfrm_lookup_with_ifid(xi->net, dst, fl, NULL, 0, xi->p.if_id);
+ if (IS_ERR(dst)) {
+ err = PTR_ERR(dst);
+ dst = NULL;
+ goto tx_err_link_failure;
+ }
+
+ x = dst->xfrm;
+ if (!x)
+ goto tx_err_link_failure;
+
+ if (x->if_id != xi->p.if_id)
+ goto tx_err_link_failure;
+
+ tdev = dst->dev;
+
+ if (tdev == dev) {
+ stats->collisions++;
+ net_warn_ratelimited("%s: Local routing loop detected!\n",
+ dev->name);
+ goto tx_err_dst_release;
+ }
+
+ mtu = dst_mtu(dst);
+ if (skb->len > mtu) {
+ skb_dst_update_pmtu_no_confirm(skb, mtu);
+
+ if (skb->protocol == htons(ETH_P_IPV6)) {
+ if (mtu < IPV6_MIN_MTU)
+ mtu = IPV6_MIN_MTU;
+
+ if (skb->len > 1280)
+ icmpv6_ndo_send(skb, ICMPV6_PKT_TOOBIG, 0, mtu);
+ else
+ goto xmit;
+ } else {
+ if (!(ip_hdr(skb)->frag_off & htons(IP_DF)))
+ goto xmit;
+ icmp_ndo_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
+ htonl(mtu));
+ }
+
+ dst_release(dst);
+ return -EMSGSIZE;
+ }
+
+xmit:
+ xfrmi_scrub_packet(skb, !net_eq(xi->net, dev_net(dev)));
+ skb_dst_set(skb, dst);
+ skb->dev = tdev;
+
+ err = dst_output(xi->net, skb->sk, skb);
+ if (net_xmit_eval(err) == 0) {
+ struct pcpu_sw_netstats *tstats = this_cpu_ptr(dev->tstats);
+
+ u64_stats_update_begin(&tstats->syncp);
+ tstats->tx_bytes += length;
+ tstats->tx_packets++;
+ u64_stats_update_end(&tstats->syncp);
+ } else {
+ stats->tx_errors++;
+ stats->tx_aborted_errors++;
+ }
+
+ return 0;
+tx_err_link_failure:
+ stats->tx_carrier_errors++;
+ dst_link_failure(skb);
+tx_err_dst_release:
+ dst_release(dst);
+ return err;
+}
+
+static netdev_tx_t xfrmi_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct xfrm_if *xi = netdev_priv(dev);
+ struct net_device_stats *stats = &xi->dev->stats;
+ struct dst_entry *dst = skb_dst(skb);
+ struct flowi fl;
+ int ret;
+
+ memset(&fl, 0, sizeof(fl));
+
+ switch (skb->protocol) {
+ case htons(ETH_P_IPV6):
+ memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));
+ xfrm_decode_session(skb, &fl, AF_INET6);
+ if (!dst) {
+ fl.u.ip6.flowi6_oif = dev->ifindex;
+ fl.u.ip6.flowi6_flags |= FLOWI_FLAG_ANYSRC;
+ dst = ip6_route_output(dev_net(dev), NULL, &fl.u.ip6);
+ if (dst->error) {
+ dst_release(dst);
+ stats->tx_carrier_errors++;
+ goto tx_err;
+ }
+ skb_dst_set(skb, dst);
+ }
+ break;
+ case htons(ETH_P_IP):
+ memset(IPCB(skb), 0, sizeof(*IPCB(skb)));
+ xfrm_decode_session(skb, &fl, AF_INET);
+ if (!dst) {
+ struct rtable *rt;
+
+ fl.u.ip4.flowi4_oif = dev->ifindex;
+ fl.u.ip4.flowi4_flags |= FLOWI_FLAG_ANYSRC;
+ rt = __ip_route_output_key(dev_net(dev), &fl.u.ip4);
+ if (IS_ERR(rt)) {
+ stats->tx_carrier_errors++;
+ goto tx_err;
+ }
+ skb_dst_set(skb, &rt->dst);
+ }
+ break;
+ default:
+ goto tx_err;
+ }
+
+ fl.flowi_oif = xi->p.link;
+
+ ret = xfrmi_xmit2(skb, dev, &fl);
+ if (ret < 0)
+ goto tx_err;
+
+ return NETDEV_TX_OK;
+
+tx_err:
+ stats->tx_errors++;
+ stats->tx_dropped++;
+ kfree_skb(skb);
+ return NETDEV_TX_OK;
+}
+
+static int xfrmi4_err(struct sk_buff *skb, u32 info)
+{
+ const struct iphdr *iph = (const struct iphdr *)skb->data;
+ struct net *net = dev_net(skb->dev);
+ int protocol = iph->protocol;
+ struct ip_comp_hdr *ipch;
+ struct ip_esp_hdr *esph;
+ struct ip_auth_hdr *ah ;
+ struct xfrm_state *x;
+ struct xfrm_if *xi;
+ __be32 spi;
+
+ switch (protocol) {
+ case IPPROTO_ESP:
+ esph = (struct ip_esp_hdr *)(skb->data+(iph->ihl<<2));
+ spi = esph->spi;
+ break;
+ case IPPROTO_AH:
+ ah = (struct ip_auth_hdr *)(skb->data+(iph->ihl<<2));
+ spi = ah->spi;
+ break;
+ case IPPROTO_COMP:
+ ipch = (struct ip_comp_hdr *)(skb->data+(iph->ihl<<2));
+ spi = htonl(ntohs(ipch->cpi));
+ break;
+ default:
+ return 0;
+ }
+
+ switch (icmp_hdr(skb)->type) {
+ case ICMP_DEST_UNREACH:
+ if (icmp_hdr(skb)->code != ICMP_FRAG_NEEDED)
+ return 0;
+ case ICMP_REDIRECT:
+ break;
+ default:
+ return 0;
+ }
+
+ x = xfrm_state_lookup(net, skb->mark, (const xfrm_address_t *)&iph->daddr,
+ spi, protocol, AF_INET);
+ if (!x)
+ return 0;
+
+ xi = xfrmi_lookup(net, x);
+ if (!xi) {
+ xfrm_state_put(x);
+ return -1;
+ }
+
+ if (icmp_hdr(skb)->type == ICMP_DEST_UNREACH)
+ ipv4_update_pmtu(skb, net, info, 0, 0, protocol, 0);
+ else
+ ipv4_redirect(skb, net, 0, 0, protocol, 0);
+ xfrm_state_put(x);
+
+ return 0;
+}
+
+static int xfrmi6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
+ u8 type, u8 code, int offset, __be32 info)
+{
+ const struct ipv6hdr *iph = (const struct ipv6hdr *)skb->data;
+ struct net *net = dev_net(skb->dev);
+ int protocol = iph->nexthdr;
+ struct ip_comp_hdr *ipch;
+ struct ip_esp_hdr *esph;
+ struct ip_auth_hdr *ah;
+ struct xfrm_state *x;
+ struct xfrm_if *xi;
+ __be32 spi;
+
+ switch (protocol) {
+ case IPPROTO_ESP:
+ esph = (struct ip_esp_hdr *)(skb->data + offset);
+ spi = esph->spi;
+ break;
+ case IPPROTO_AH:
+ ah = (struct ip_auth_hdr *)(skb->data + offset);
+ spi = ah->spi;
+ break;
+ case IPPROTO_COMP:
+ ipch = (struct ip_comp_hdr *)(skb->data + offset);
+ spi = htonl(ntohs(ipch->cpi));
+ break;
+ default:
+ return 0;
+ }
+
+ if (type != ICMPV6_PKT_TOOBIG &&
+ type != NDISC_REDIRECT)
+ return 0;
+
+ x = xfrm_state_lookup(net, skb->mark, (const xfrm_address_t *)&iph->daddr,
+ spi, protocol, AF_INET6);
+ if (!x)
+ return 0;
+
+ xi = xfrmi_lookup(net, x);
+ if (!xi) {
+ xfrm_state_put(x);
+ return -1;
+ }
+
+ if (type == NDISC_REDIRECT)
+ ip6_redirect(skb, net, skb->dev->ifindex, 0,
+ sock_net_uid(net, NULL));
+ else
+ ip6_update_pmtu(skb, net, info, 0, 0, sock_net_uid(net, NULL));
+ xfrm_state_put(x);
+
+ return 0;
+}
+
+static int xfrmi_change(struct xfrm_if *xi, const struct xfrm_if_parms *p)
+{
+ if (xi->p.link != p->link)
+ return -EINVAL;
+
+ xi->p.if_id = p->if_id;
+
+ return 0;
+}
+
+static int xfrmi_update(struct xfrm_if *xi, struct xfrm_if_parms *p)
+{
+ struct net *net = xi->net;
+ struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id);
+ int err;
+
+ xfrmi_unlink(xfrmn, xi);
+ synchronize_net();
+ err = xfrmi_change(xi, p);
+ xfrmi_link(xfrmn, xi);
+ netdev_state_change(xi->dev);
+ return err;
+}
+
+static void xfrmi_get_stats64(struct net_device *dev,
+ struct rtnl_link_stats64 *s)
+{
+ int cpu;
+
+ if (!dev->tstats)
+ return;
+
+ for_each_possible_cpu(cpu) {
+ struct pcpu_sw_netstats *stats;
+ struct pcpu_sw_netstats tmp;
+ int start;
+
+ stats = per_cpu_ptr(dev->tstats, cpu);
+ do {
+ start = u64_stats_fetch_begin_irq(&stats->syncp);
+ tmp.rx_packets = stats->rx_packets;
+ tmp.rx_bytes = stats->rx_bytes;
+ tmp.tx_packets = stats->tx_packets;
+ tmp.tx_bytes = stats->tx_bytes;
+ } while (u64_stats_fetch_retry_irq(&stats->syncp, start));
+
+ s->rx_packets += tmp.rx_packets;
+ s->rx_bytes += tmp.rx_bytes;
+ s->tx_packets += tmp.tx_packets;
+ s->tx_bytes += tmp.tx_bytes;
+ }
+
+ s->rx_dropped = dev->stats.rx_dropped;
+ s->tx_dropped = dev->stats.tx_dropped;
+}
+
+static int xfrmi_get_iflink(const struct net_device *dev)
+{
+ struct xfrm_if *xi = netdev_priv(dev);
+
+ return xi->p.link;
+}
+
+
+static const struct net_device_ops xfrmi_netdev_ops = {
+ .ndo_init = xfrmi_dev_init,
+ .ndo_uninit = xfrmi_dev_uninit,
+ .ndo_start_xmit = xfrmi_xmit,
+ .ndo_get_stats64 = xfrmi_get_stats64,
+ .ndo_get_iflink = xfrmi_get_iflink,
+};
+
+static void xfrmi_dev_setup(struct net_device *dev)
+{
+ dev->netdev_ops = &xfrmi_netdev_ops;
+ dev->type = ARPHRD_NONE;
+ dev->mtu = ETH_DATA_LEN;
+ dev->min_mtu = ETH_MIN_MTU;
+ dev->max_mtu = IP_MAX_MTU;
+ dev->flags = IFF_NOARP;
+ dev->needs_free_netdev = true;
+ dev->priv_destructor = xfrmi_dev_free;
+ netif_keep_dst(dev);
+
+ eth_broadcast_addr(dev->broadcast);
+}
+
+static int xfrmi_dev_init(struct net_device *dev)
+{
+ struct xfrm_if *xi = netdev_priv(dev);
+ struct net_device *phydev = __dev_get_by_index(xi->net, xi->p.link);
+ int err;
+
+ dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
+ if (!dev->tstats)
+ return -ENOMEM;
+
+ err = gro_cells_init(&xi->gro_cells, dev);
+ if (err) {
+ free_percpu(dev->tstats);
+ return err;
+ }
+
+ dev->features |= NETIF_F_LLTX;
+
+ if (phydev) {
+ dev->needed_headroom = phydev->needed_headroom;
+ dev->needed_tailroom = phydev->needed_tailroom;
+
+ if (is_zero_ether_addr(dev->dev_addr))
+ eth_hw_addr_inherit(dev, phydev);
+ if (is_zero_ether_addr(dev->broadcast))
+ memcpy(dev->broadcast, phydev->broadcast,
+ dev->addr_len);
+ } else {
+ eth_hw_addr_random(dev);
+ eth_broadcast_addr(dev->broadcast);
+ }
+
+ return 0;
+}
+
+static int xfrmi_validate(struct nlattr *tb[], struct nlattr *data[],
+ struct netlink_ext_ack *extack)
+{
+ return 0;
+}
+
+static void xfrmi_netlink_parms(struct nlattr *data[],
+ struct xfrm_if_parms *parms)
+{
+ memset(parms, 0, sizeof(*parms));
+
+ if (!data)
+ return;
+
+ if (data[IFLA_XFRM_LINK])
+ parms->link = nla_get_u32(data[IFLA_XFRM_LINK]);
+
+ if (data[IFLA_XFRM_IF_ID])
+ parms->if_id = nla_get_u32(data[IFLA_XFRM_IF_ID]);
+}
+
+static int xfrmi_newlink(struct net *src_net, struct net_device *dev,
+ struct nlattr *tb[], struct nlattr *data[],
+ struct netlink_ext_ack *extack)
+{
+ struct net *net = dev_net(dev);
+ struct xfrm_if_parms p = {};
+ struct xfrm_if *xi;
+ int err;
+
+ xfrmi_netlink_parms(data, &p);
+ if (!p.if_id) {
+ NL_SET_ERR_MSG(extack, "if_id must be non zero");
+ return -EINVAL;
+ }
+
+ xi = xfrmi_locate(net, &p);
+ if (xi)
+ return -EEXIST;
+
+ xi = netdev_priv(dev);
+ xi->p = p;
+ xi->net = net;
+ xi->dev = dev;
+
+ err = xfrmi_create(dev);
+ return err;
+}
+
+static void xfrmi_dellink(struct net_device *dev, struct list_head *head)
+{
+ unregister_netdevice_queue(dev, head);
+}
+
+static int xfrmi_changelink(struct net_device *dev, struct nlattr *tb[],
+ struct nlattr *data[],
+ struct netlink_ext_ack *extack)
+{
+ struct xfrm_if *xi = netdev_priv(dev);
+ struct net *net = xi->net;
+ struct xfrm_if_parms p = {};
+
+ xfrmi_netlink_parms(data, &p);
+ if (!p.if_id) {
+ NL_SET_ERR_MSG(extack, "if_id must be non zero");
+ return -EINVAL;
+ }
+
+ xi = xfrmi_locate(net, &p);
+ if (!xi) {
+ xi = netdev_priv(dev);
+ } else {
+ if (xi->dev != dev)
+ return -EEXIST;
+ }
+
+ return xfrmi_update(xi, &p);
+}
+
+static size_t xfrmi_get_size(const struct net_device *dev)
+{
+ return
+ /* IFLA_XFRM_LINK */
+ nla_total_size(4) +
+ /* IFLA_XFRM_IF_ID */
+ nla_total_size(4) +
+ 0;
+}
+
+static int xfrmi_fill_info(struct sk_buff *skb, const struct net_device *dev)
+{
+ struct xfrm_if *xi = netdev_priv(dev);
+ struct xfrm_if_parms *parm = &xi->p;
+
+ if (nla_put_u32(skb, IFLA_XFRM_LINK, parm->link) ||
+ nla_put_u32(skb, IFLA_XFRM_IF_ID, parm->if_id))
+ goto nla_put_failure;
+ return 0;
+
+nla_put_failure:
+ return -EMSGSIZE;
+}
+
+struct net *xfrmi_get_link_net(const struct net_device *dev)
+{
+ struct xfrm_if *xi = netdev_priv(dev);
+
+ return xi->net;
+}
+
+static const struct nla_policy xfrmi_policy[IFLA_XFRM_MAX + 1] = {
+ [IFLA_XFRM_LINK] = { .type = NLA_U32 },
+ [IFLA_XFRM_IF_ID] = { .type = NLA_U32 },
+};
+
+static struct rtnl_link_ops xfrmi_link_ops __read_mostly = {
+ .kind = "xfrm",
+ .maxtype = IFLA_XFRM_MAX,
+ .policy = xfrmi_policy,
+ .priv_size = sizeof(struct xfrm_if),
+ .setup = xfrmi_dev_setup,
+ .validate = xfrmi_validate,
+ .newlink = xfrmi_newlink,
+ .dellink = xfrmi_dellink,
+ .changelink = xfrmi_changelink,
+ .get_size = xfrmi_get_size,
+ .fill_info = xfrmi_fill_info,
+ .get_link_net = xfrmi_get_link_net,
+};
+
+static void __net_exit xfrmi_destroy_interfaces(struct xfrmi_net *xfrmn)
+{
+ struct xfrm_if *xi;
+ LIST_HEAD(list);
+
+ xi = rtnl_dereference(xfrmn->xfrmi[0]);
+ if (!xi)
+ return;
+
+ unregister_netdevice_queue(xi->dev, &list);
+ unregister_netdevice_many(&list);
+}
+
+static int __net_init xfrmi_init_net(struct net *net)
+{
+ return 0;
+}
+
+static void __net_exit xfrmi_exit_net(struct net *net)
+{
+ struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id);
+
+ rtnl_lock();
+ xfrmi_destroy_interfaces(xfrmn);
+ rtnl_unlock();
+}
+
+static void __net_exit xfrmi_exit_batch_net(struct list_head *net_exit_list)
+{
+ struct net *net;
+ LIST_HEAD(list);
+
+ rtnl_lock();
+ list_for_each_entry(net, net_exit_list, exit_list) {
+ struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id);
+ struct xfrm_if __rcu **xip;
+ struct xfrm_if *xi;
+
+ for (xip = &xfrmn->xfrmi[0];
+ (xi = rtnl_dereference(*xip)) != NULL;
+ xip = &xi->next)
+ unregister_netdevice_queue(xi->dev, &list);
+ }
+ unregister_netdevice_many(&list);
+ rtnl_unlock();
+}
+
+static struct pernet_operations xfrmi_net_ops = {
+ .exit_batch = xfrmi_exit_batch_net,
+ .init = xfrmi_init_net,
+ .exit = xfrmi_exit_net,
+ .id = &xfrmi_net_id,
+ .size = sizeof(struct xfrmi_net),
+};
+
+static struct xfrm6_protocol xfrmi_esp6_protocol __read_mostly = {
+ .handler = xfrm6_rcv,
+ .cb_handler = xfrmi_rcv_cb,
+ .err_handler = xfrmi6_err,
+ .priority = 10,
+};
+
+static struct xfrm6_protocol xfrmi_ah6_protocol __read_mostly = {
+ .handler = xfrm6_rcv,
+ .cb_handler = xfrmi_rcv_cb,
+ .err_handler = xfrmi6_err,
+ .priority = 10,
+};
+
+static struct xfrm6_protocol xfrmi_ipcomp6_protocol __read_mostly = {
+ .handler = xfrm6_rcv,
+ .cb_handler = xfrmi_rcv_cb,
+ .err_handler = xfrmi6_err,
+ .priority = 10,
+};
+
+static struct xfrm4_protocol xfrmi_esp4_protocol __read_mostly = {
+ .handler = xfrm4_rcv,
+ .input_handler = xfrm_input,
+ .cb_handler = xfrmi_rcv_cb,
+ .err_handler = xfrmi4_err,
+ .priority = 10,
+};
+
+static struct xfrm4_protocol xfrmi_ah4_protocol __read_mostly = {
+ .handler = xfrm4_rcv,
+ .input_handler = xfrm_input,
+ .cb_handler = xfrmi_rcv_cb,
+ .err_handler = xfrmi4_err,
+ .priority = 10,
+};
+
+static struct xfrm4_protocol xfrmi_ipcomp4_protocol __read_mostly = {
+ .handler = xfrm4_rcv,
+ .input_handler = xfrm_input,
+ .cb_handler = xfrmi_rcv_cb,
+ .err_handler = xfrmi4_err,
+ .priority = 10,
+};
+
+static int __init xfrmi4_init(void)
+{
+ int err;
+
+ err = xfrm4_protocol_register(&xfrmi_esp4_protocol, IPPROTO_ESP);
+ if (err < 0)
+ goto xfrm_proto_esp_failed;
+ err = xfrm4_protocol_register(&xfrmi_ah4_protocol, IPPROTO_AH);
+ if (err < 0)
+ goto xfrm_proto_ah_failed;
+ err = xfrm4_protocol_register(&xfrmi_ipcomp4_protocol, IPPROTO_COMP);
+ if (err < 0)
+ goto xfrm_proto_comp_failed;
+
+ return 0;
+
+xfrm_proto_comp_failed:
+ xfrm4_protocol_deregister(&xfrmi_ah4_protocol, IPPROTO_AH);
+xfrm_proto_ah_failed:
+ xfrm4_protocol_deregister(&xfrmi_esp4_protocol, IPPROTO_ESP);
+xfrm_proto_esp_failed:
+ return err;
+}
+
+static void xfrmi4_fini(void)
+{
+ xfrm4_protocol_deregister(&xfrmi_ipcomp4_protocol, IPPROTO_COMP);
+ xfrm4_protocol_deregister(&xfrmi_ah4_protocol, IPPROTO_AH);
+ xfrm4_protocol_deregister(&xfrmi_esp4_protocol, IPPROTO_ESP);
+}
+
+static int __init xfrmi6_init(void)
+{
+ int err;
+
+ err = xfrm6_protocol_register(&xfrmi_esp6_protocol, IPPROTO_ESP);
+ if (err < 0)
+ goto xfrm_proto_esp_failed;
+ err = xfrm6_protocol_register(&xfrmi_ah6_protocol, IPPROTO_AH);
+ if (err < 0)
+ goto xfrm_proto_ah_failed;
+ err = xfrm6_protocol_register(&xfrmi_ipcomp6_protocol, IPPROTO_COMP);
+ if (err < 0)
+ goto xfrm_proto_comp_failed;
+
+ return 0;
+
+xfrm_proto_comp_failed:
+ xfrm6_protocol_deregister(&xfrmi_ah6_protocol, IPPROTO_AH);
+xfrm_proto_ah_failed:
+ xfrm6_protocol_deregister(&xfrmi_esp6_protocol, IPPROTO_ESP);
+xfrm_proto_esp_failed:
+ return err;
+}
+
+static void xfrmi6_fini(void)
+{
+ xfrm6_protocol_deregister(&xfrmi_ipcomp6_protocol, IPPROTO_COMP);
+ xfrm6_protocol_deregister(&xfrmi_ah6_protocol, IPPROTO_AH);
+ xfrm6_protocol_deregister(&xfrmi_esp6_protocol, IPPROTO_ESP);
+}
+
+static const struct xfrm_if_cb xfrm_if_cb = {
+ .decode_session = xfrmi_decode_session,
+};
+
+static int __init xfrmi_init(void)
+{
+ const char *msg;
+ int err;
+
+ pr_info("IPsec XFRM device driver\n");
+
+ msg = "tunnel device";
+ err = register_pernet_device(&xfrmi_net_ops);
+ if (err < 0)
+ goto pernet_dev_failed;
+
+ msg = "xfrm4 protocols";
+ err = xfrmi4_init();
+ if (err < 0)
+ goto xfrmi4_failed;
+
+ msg = "xfrm6 protocols";
+ err = xfrmi6_init();
+ if (err < 0)
+ goto xfrmi6_failed;
+
+
+ msg = "netlink interface";
+ err = rtnl_link_register(&xfrmi_link_ops);
+ if (err < 0)
+ goto rtnl_link_failed;
+
+ xfrm_if_register_cb(&xfrm_if_cb);
+
+ return err;
+
+rtnl_link_failed:
+ xfrmi6_fini();
+xfrmi6_failed:
+ xfrmi4_fini();
+xfrmi4_failed:
+ unregister_pernet_device(&xfrmi_net_ops);
+pernet_dev_failed:
+ pr_err("xfrmi init: failed to register %s\n", msg);
+ return err;
+}
+
+static void __exit xfrmi_fini(void)
+{
+ xfrm_if_unregister_cb();
+ rtnl_link_unregister(&xfrmi_link_ops);
+ xfrmi4_fini();
+ xfrmi6_fini();
+ unregister_pernet_device(&xfrmi_net_ops);
+}
+
+module_init(xfrmi_init);
+module_exit(xfrmi_fini);
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_RTNL_LINK("xfrm");
+MODULE_ALIAS_NETDEV("xfrm0");
+MODULE_AUTHOR("Steffen Klassert");
+MODULE_DESCRIPTION("XFRM virtual interface");
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 94c7ebc26c48..699e544b4bfd 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -521,7 +521,7 @@ static void xfrm_update_ae_params(struct xfrm_state *x, struct nlattr **attrs,
struct nlattr *et = attrs[XFRMA_ETIMER_THRESH];
struct nlattr *rt = attrs[XFRMA_REPLAY_THRESH];
- if (re) {
+ if (re && x->replay_esn && x->preplay_esn) {
struct xfrm_replay_state_esn *replay_esn;
replay_esn = nla_data(re);
memcpy(x->replay_esn, replay_esn,
@@ -1036,6 +1036,15 @@ static int xfrm_dump_sa(struct sk_buff *skb, struct netlink_callback *cb)
sizeof(*filter), GFP_KERNEL);
if (filter == NULL)
return -ENOMEM;
+
+ /* see addr_match(), (prefix length >> 5) << 2
+ * will be used to compare xfrm_address_t
+ */
+ if (filter->splen > (sizeof(xfrm_address_t) << 3) ||
+ filter->dplen > (sizeof(xfrm_address_t) << 3)) {
+ kfree(filter);
+ return -EINVAL;
+ }
}
if (attrs[XFRMA_PROTO])
@@ -2573,7 +2582,7 @@ static const struct nla_policy xfrma_policy[XFRMA_MAX+1] = {
[XFRMA_ALG_COMP] = { .len = sizeof(struct xfrm_algo) },
[XFRMA_ENCAP] = { .len = sizeof(struct xfrm_encap_tmpl) },
[XFRMA_TMPL] = { .len = sizeof(struct xfrm_user_tmpl) },
- [XFRMA_SEC_CTX] = { .len = sizeof(struct xfrm_sec_ctx) },
+ [XFRMA_SEC_CTX] = { .len = sizeof(struct xfrm_user_sec_ctx) },
[XFRMA_LTIME_VAL] = { .len = sizeof(struct xfrm_lifetime_cur) },
[XFRMA_REPLAY_VAL] = { .len = sizeof(struct xfrm_replay_state) },
[XFRMA_REPLAY_THRESH] = { .type = NLA_U32 },
diff --git a/security/integrity/ima/Kconfig b/security/integrity/ima/Kconfig
index 3ec45028a8c5..cd32fe3311af 100644
--- a/security/integrity/ima/Kconfig
+++ b/security/integrity/ima/Kconfig
@@ -7,7 +7,7 @@ config IMA
select CRYPTO_HMAC
select CRYPTO_SHA1
select CRYPTO_HASH_INFO
- select TCG_TPM if HAS_IOMEM && !UML
+ select TCG_TPM if HAS_IOMEM
select TCG_TIS if TCG_TPM && X86
select TCG_CRB if TCG_TPM && ACPI
select TCG_IBMVTPM if TCG_TPM && PPC_PSERIES
diff --git a/sound/pci/emu10k1/emufx.c b/sound/pci/emu10k1/emufx.c
index 1f25e6d029d8..84d98c098b74 100644
--- a/sound/pci/emu10k1/emufx.c
+++ b/sound/pci/emu10k1/emufx.c
@@ -1550,14 +1550,8 @@ A_OP(icode, &ptr, iMAC0, A_GPR(var), A_GPR(var), A_GPR(vol), A_EXTIN(input))
gpr += 2;
/* Master volume (will be renamed later) */
- A_OP(icode, &ptr, iMAC0, A_GPR(playback+0+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+0+SND_EMU10K1_PLAYBACK_CHANNELS));
- A_OP(icode, &ptr, iMAC0, A_GPR(playback+1+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+1+SND_EMU10K1_PLAYBACK_CHANNELS));
- A_OP(icode, &ptr, iMAC0, A_GPR(playback+2+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+2+SND_EMU10K1_PLAYBACK_CHANNELS));
- A_OP(icode, &ptr, iMAC0, A_GPR(playback+3+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+3+SND_EMU10K1_PLAYBACK_CHANNELS));
- A_OP(icode, &ptr, iMAC0, A_GPR(playback+4+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+4+SND_EMU10K1_PLAYBACK_CHANNELS));
- A_OP(icode, &ptr, iMAC0, A_GPR(playback+5+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+5+SND_EMU10K1_PLAYBACK_CHANNELS));
- A_OP(icode, &ptr, iMAC0, A_GPR(playback+6+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+6+SND_EMU10K1_PLAYBACK_CHANNELS));
- A_OP(icode, &ptr, iMAC0, A_GPR(playback+7+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+7+SND_EMU10K1_PLAYBACK_CHANNELS));
+ for (z = 0; z < 8; z++)
+ A_OP(icode, &ptr, iMAC0, A_GPR(playback+z+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+z+SND_EMU10K1_PLAYBACK_CHANNELS));
snd_emu10k1_init_mono_control(&controls[nctl++], "Wave Master Playback Volume", gpr, 0);
gpr += 2;
@@ -1641,102 +1635,14 @@ A_OP(icode, &ptr, iMAC0, A_GPR(var), A_GPR(var), A_GPR(vol), A_EXTIN(input))
dev_dbg(emu->card->dev, "emufx.c: gpr=0x%x, tmp=0x%x\n",
gpr, tmp);
*/
- /* For the EMU1010: How to get 32bit values from the DSP. High 16bits into L, low 16bits into R. */
- /* A_P16VIN(0) is delayed by one sample,
- * so all other A_P16VIN channels will need to also be delayed
- */
- /* Left ADC in. 1 of 2 */
snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_P16VIN(0x0), A_FXBUS2(0) );
- /* Right ADC in 1 of 2 */
- gpr_map[gpr++] = 0x00000000;
- /* Delaying by one sample: instead of copying the input
- * value A_P16VIN to output A_FXBUS2 as in the first channel,
- * we use an auxiliary register, delaying the value by one
- * sample
- */
- snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_GPR(gpr - 1), A_FXBUS2(2) );
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x1), A_C_00000000, A_C_00000000);
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_GPR(gpr - 1), A_FXBUS2(4) );
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x2), A_C_00000000, A_C_00000000);
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_GPR(gpr - 1), A_FXBUS2(6) );
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x3), A_C_00000000, A_C_00000000);
- /* For 96kHz mode */
- /* Left ADC in. 2 of 2 */
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_GPR(gpr - 1), A_FXBUS2(0x8) );
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x4), A_C_00000000, A_C_00000000);
- /* Right ADC in 2 of 2 */
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_GPR(gpr - 1), A_FXBUS2(0xa) );
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x5), A_C_00000000, A_C_00000000);
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_GPR(gpr - 1), A_FXBUS2(0xc) );
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x6), A_C_00000000, A_C_00000000);
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_GPR(gpr - 1), A_FXBUS2(0xe) );
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x7), A_C_00000000, A_C_00000000);
- /* Pavel Hofman - we still have voices, A_FXBUS2s, and
- * A_P16VINs available -
- * let's add 8 more capture channels - total of 16
- */
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16(icode, &ptr, tmp,
- bit_shifter16,
- A_GPR(gpr - 1),
- A_FXBUS2(0x10));
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x8),
- A_C_00000000, A_C_00000000);
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16(icode, &ptr, tmp,
- bit_shifter16,
- A_GPR(gpr - 1),
- A_FXBUS2(0x12));
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x9),
- A_C_00000000, A_C_00000000);
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16(icode, &ptr, tmp,
- bit_shifter16,
- A_GPR(gpr - 1),
- A_FXBUS2(0x14));
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0xa),
- A_C_00000000, A_C_00000000);
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16(icode, &ptr, tmp,
- bit_shifter16,
- A_GPR(gpr - 1),
- A_FXBUS2(0x16));
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0xb),
- A_C_00000000, A_C_00000000);
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16(icode, &ptr, tmp,
- bit_shifter16,
- A_GPR(gpr - 1),
- A_FXBUS2(0x18));
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0xc),
- A_C_00000000, A_C_00000000);
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16(icode, &ptr, tmp,
- bit_shifter16,
- A_GPR(gpr - 1),
- A_FXBUS2(0x1a));
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0xd),
- A_C_00000000, A_C_00000000);
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16(icode, &ptr, tmp,
- bit_shifter16,
- A_GPR(gpr - 1),
- A_FXBUS2(0x1c));
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0xe),
- A_C_00000000, A_C_00000000);
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16(icode, &ptr, tmp,
- bit_shifter16,
- A_GPR(gpr - 1),
- A_FXBUS2(0x1e));
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0xf),
- A_C_00000000, A_C_00000000);
+ /* A_P16VIN(0) is delayed by one sample, so all other A_P16VIN channels
+ * will need to also be delayed; we use an auxiliary register for that. */
+ for (z = 1; z < 0x10; z++) {
+ snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_GPR(gpr), A_FXBUS2(z * 2) );
+ A_OP(icode, &ptr, iACC3, A_GPR(gpr), A_P16VIN(z), A_C_00000000, A_C_00000000);
+ gpr_map[gpr++] = 0x00000000;
+ }
}
#if 0
diff --git a/sound/soc/codecs/rt5665.c b/sound/soc/codecs/rt5665.c
index 6ba99f5ed3f4..a7ed2a19c3ec 100644
--- a/sound/soc/codecs/rt5665.c
+++ b/sound/soc/codecs/rt5665.c
@@ -4475,6 +4475,8 @@ static void rt5665_remove(struct snd_soc_component *component)
struct rt5665_priv *rt5665 = snd_soc_component_get_drvdata(component);
regmap_write(rt5665->regmap, RT5665_RESET, 0);
+
+ regulator_bulk_disable(ARRAY_SIZE(rt5665->supplies), rt5665->supplies);
}
#ifdef CONFIG_PM
diff --git a/sound/soc/meson/axg-tdm-formatter.c b/sound/soc/meson/axg-tdm-formatter.c
index 43e390f9358a..a195160b6820 100644
--- a/sound/soc/meson/axg-tdm-formatter.c
+++ b/sound/soc/meson/axg-tdm-formatter.c
@@ -28,27 +28,32 @@ int axg_tdm_formatter_set_channel_masks(struct regmap *map,
struct axg_tdm_stream *ts,
unsigned int offset)
{
- unsigned int val, ch = ts->channels;
- unsigned long mask;
- int i, j;
+ unsigned int ch = ts->channels;
+ u32 val[AXG_TDM_NUM_LANES];
+ int i, j, k;
+
+ /*
+ * We need to mimick the slot distribution used by the HW to keep the
+ * channel placement consistent regardless of the number of channel
+ * in the stream. This is why the odd algorithm below is used.
+ */
+ memset(val, 0, sizeof(*val) * AXG_TDM_NUM_LANES);
/*
* Distribute the channels of the stream over the available slots
- * of each TDM lane
+ * of each TDM lane. We need to go over the 32 slots ...
*/
- for (i = 0; i < AXG_TDM_NUM_LANES; i++) {
- val = 0;
- mask = ts->mask[i];
-
- for (j = find_first_bit(&mask, 32);
- (j < 32) && ch;
- j = find_next_bit(&mask, 32, j + 1)) {
- val |= 1 << j;
- ch -= 1;
+ for (i = 0; (i < 32) && ch; i += 2) {
+ /* ... of all the lanes ... */
+ for (j = 0; j < AXG_TDM_NUM_LANES; j++) {
+ /* ... then distribute the channels in pairs */
+ for (k = 0; k < 2; k++) {
+ if ((BIT(i + k) & ts->mask[j]) && ch) {
+ val[j] |= BIT(i + k);
+ ch -= 1;
+ }
+ }
}
-
- regmap_write(map, offset, val);
- offset += regmap_get_reg_stride(map);
}
/*
@@ -61,6 +66,11 @@ int axg_tdm_formatter_set_channel_masks(struct regmap *map,
return -EINVAL;
}
+ for (i = 0; i < AXG_TDM_NUM_LANES; i++) {
+ regmap_write(map, offset, val[i]);
+ offset += regmap_get_reg_stride(map);
+ }
+
return 0;
}
EXPORT_SYMBOL_GPL(axg_tdm_formatter_set_channel_masks);
diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index e72f744bc305..6c546f520f99 100644
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -3677,5 +3677,34 @@ ALC1220_VB_DESKTOP(0x26ce, 0x0a01), /* Asrock TRX40 Creator */
}
}
},
+{
+ /* Advanced modes of the Mythware XA001AU.
+ * For the standard mode, Mythware XA001AU has ID ffad:a001
+ */
+ USB_DEVICE_VENDOR_SPEC(0xffad, 0xa001),
+ .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
+ .vendor_name = "Mythware",
+ .product_name = "XA001AU",
+ .ifnum = QUIRK_ANY_INTERFACE,
+ .type = QUIRK_COMPOSITE,
+ .data = (const struct snd_usb_audio_quirk[]) {
+ {
+ .ifnum = 0,
+ .type = QUIRK_IGNORE_INTERFACE,
+ },
+ {
+ .ifnum = 1,
+ .type = QUIRK_AUDIO_STANDARD_INTERFACE,
+ },
+ {
+ .ifnum = 2,
+ .type = QUIRK_AUDIO_STANDARD_INTERFACE,
+ },
+ {
+ .ifnum = -1
+ }
+ }
+ }
+},
#undef USB_DEVICE_VENDOR_SPEC
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_changes.sh b/tools/testing/selftests/net/forwarding/mirror_gre_changes.sh
index 135902aa8b11..a372863c9efd 100755
--- a/tools/testing/selftests/net/forwarding/mirror_gre_changes.sh
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_changes.sh
@@ -72,7 +72,8 @@ test_span_gre_ttl()
RET=0
- mirror_install $swp1 ingress $tundev "matchall $tcflags"
+ mirror_install $swp1 ingress $tundev \
+ "prot ip flower $tcflags ip_prot icmp"
tc filter add dev $h3 ingress pref 77 prot $prot \
flower ip_ttl 50 action pass
diff --git a/tools/testing/selftests/net/forwarding/tc_flower.sh b/tools/testing/selftests/net/forwarding/tc_flower.sh
index 20d1077e5a3d..85faef980887 100755
--- a/tools/testing/selftests/net/forwarding/tc_flower.sh
+++ b/tools/testing/selftests/net/forwarding/tc_flower.sh
@@ -48,8 +48,8 @@ match_dst_mac_test()
tc_check_packets "dev $h2 ingress" 101 1
check_fail $? "Matched on a wrong filter"
- tc_check_packets "dev $h2 ingress" 102 1
- check_err $? "Did not match on correct filter"
+ tc_check_packets "dev $h2 ingress" 102 0
+ check_fail $? "Did not match on correct filter"
tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
@@ -74,8 +74,8 @@ match_src_mac_test()
tc_check_packets "dev $h2 ingress" 101 1
check_fail $? "Matched on a wrong filter"
- tc_check_packets "dev $h2 ingress" 102 1
- check_err $? "Did not match on correct filter"
+ tc_check_packets "dev $h2 ingress" 102 0
+ check_fail $? "Did not match on correct filter"
tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
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