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Date: Tue, 31 Mar 2020 06:24:47 +0000 (UTC)
From: Christophe Leroy <christophe.leroy@....fr>
To: Benjamin Herrenschmidt <benh@...nel.crashing.org>,
Paul Mackerras <paulus@...ba.org>,
Michael Ellerman <mpe@...erman.id.au>
Cc: linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH 07/10] powerpc/4xx: Remove CONFIG_4xx
CONFIG_4xx was corresponding to CONFIG_40x | CONFIG_44x.
As CONFIG_40x is gone, CONFIG_4xx and CONFIG_44x are now equivalent.
And CONFIG_BOOKE is also set when CONFIG_44x is set.
Replace (CONFIG_4xx | CONFIG_BOOKE) by CONFIG_BOOKE
Replace other CONFIG_4xx by CONFIG_44x
Remove CONFIG_4xx.
Signed-off-by: Christophe Leroy <christophe.leroy@....fr>
---
arch/powerpc/Kconfig | 2 +-
arch/powerpc/Makefile | 2 +-
arch/powerpc/include/asm/ppc_asm.h | 2 +-
arch/powerpc/kernel/asm-offsets.c | 2 +-
arch/powerpc/kernel/entry_32.S | 16 ++++++++--------
arch/powerpc/kernel/misc_32.S | 4 ++--
arch/powerpc/kernel/process.c | 2 +-
arch/powerpc/mm/fault.c | 2 +-
arch/powerpc/mm/ptdump/Makefile | 2 +-
arch/powerpc/platforms/Kconfig.cputype | 7 +------
arch/powerpc/platforms/Makefile | 3 +--
arch/powerpc/sysdev/Kconfig | 6 +++---
arch/powerpc/xmon/xmon.c | 2 +-
13 files changed, 23 insertions(+), 29 deletions(-)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index d84844e07d6e..5a83a7559afd 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -407,7 +407,7 @@ config HUGETLB_PAGE_SIZE_VARIABLE
config MATH_EMULATION
bool "Math emulation"
- depends on 4xx || PPC_8xx || PPC_MPC832x || BOOKE
+ depends on PPC_8xx || PPC_MPC832x || BOOKE
help
Some PowerPC chips designed for embedded applications do not have
a floating-point unit and therefore do not implement the
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 76e13d1c3fec..6d85a066b145 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -248,7 +248,7 @@ KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm)
# often slow when they are implemented at all
KBUILD_CFLAGS += $(call cc-option,-mno-string)
-cpu-as-$(CONFIG_4xx) += -Wa,-m405
+cpu-as-$(CONFIG_44x) += -Wa,-m405
cpu-as-$(CONFIG_ALTIVEC) += $(call as-option,-Wa$(comma)-maltivec)
cpu-as-$(CONFIG_E200) += -Wa,-me200
cpu-as-$(CONFIG_E500) += -Wa,-me500
diff --git a/arch/powerpc/include/asm/ppc_asm.h b/arch/powerpc/include/asm/ppc_asm.h
index 4a4345bec441..e97a5ecc15e9 100644
--- a/arch/powerpc/include/asm/ppc_asm.h
+++ b/arch/powerpc/include/asm/ppc_asm.h
@@ -434,7 +434,7 @@ END_FTR_SECTION_NESTED(CPU_FTR_CELL_TB_BUG, CPU_FTR_CELL_TB_BUG, 96)
* and they must be used.
*/
-#if !defined(CONFIG_4xx) && !defined(CONFIG_PPC_8xx)
+#if !defined(CONFIG_44x) && !defined(CONFIG_PPC_8xx)
#define tlbia \
li r4,1024; \
mtctr r4; \
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 9f92ba40ba8b..63c3b69a590b 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -152,7 +152,7 @@ int main(void)
OFFSET(THREAD_USED_SPE, thread_struct, used_spe);
#endif /* CONFIG_SPE */
#endif /* CONFIG_PPC64 */
-#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
+#ifdef CONFIG_BOOKE
OFFSET(THREAD_DBCR0, thread_struct, debug.dbcr0);
#endif
#ifdef CONFIG_KVM_BOOK3S_32_HANDLER
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index 1fa899aa0399..cae0bdc013e5 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -401,7 +401,7 @@ syscall_exit_cont:
lwz r3,GPR3(r1)
1:
#endif /* CONFIG_TRACE_IRQFLAGS */
-#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
+#ifdef CONFIG_BOOKE
/* If the process has its own DBCR0 value, load it up. The internal
debug mode bit tells us that dbcr0 should be loaded. */
lwz r0,THREAD+THREAD_DBCR0(r2)
@@ -554,7 +554,7 @@ syscall_exit_work:
ret_from_kernel_syscall:
mfspr r9, SPRN_SRR0
mfspr r10, SPRN_SRR1
-#if !defined(CONFIG_4xx) && !defined(CONFIG_BOOKE)
+#ifndef CONFIG_BOOKE
LOAD_REG_IMMEDIATE(r11, MSR_KERNEL & ~(MSR_IR|MSR_DR))
mtmsr r11
#endif
@@ -749,7 +749,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_SPE)
.globl fast_exception_return
fast_exception_return:
-#if !(defined(CONFIG_4xx) || defined(CONFIG_BOOKE))
+#ifndef CONFIG_BOOKE
andi. r10,r9,MSR_RI /* check for recoverable interrupt */
beq 1f /* if not, we've got problems */
#endif
@@ -775,7 +775,7 @@ fast_exception_return:
SYNC
RFI
-#if !(defined(CONFIG_4xx) || defined(CONFIG_BOOKE))
+#ifndef CONFIG_BOOKE
/* check if the exception happened in a restartable section */
1: lis r3,exc_exit_restart_end@ha
addi r3,r3,exc_exit_restart_end@l
@@ -847,7 +847,7 @@ user_exc_return: /* r10 contains MSR_KERNEL here */
bne do_work
restore_user:
-#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
+#ifdef CONFIG_BOOKE
/* Check whether this process has its own DBCR0 value. The internal
debug mode bit tells us that dbcr0 should be loaded. */
lwz r0,THREAD+THREAD_DBCR0(r2)
@@ -974,7 +974,7 @@ BEGIN_FTR_SECTION
END_FTR_SECTION_IFSET(CPU_FTR_NEED_PAIRED_STWCX)
stwcx. r0,0,r1 /* to clear the reservation */
-#if !(defined(CONFIG_4xx) || defined(CONFIG_BOOKE))
+#ifndef CONFIG_BOOKE
andi. r10,r9,MSR_RI /* check if this exception occurred */
beql nonrecoverable /* at a bad place (MSR:RI = 0) */
@@ -1010,7 +1010,7 @@ exc_exit_restart_end:
SYNC
RFI
-#else /* !(CONFIG_4xx || CONFIG_BOOKE) */
+#else /* !CONFIG_BOOKE */
/*
* This is a bit different on 4xx/Book-E because it doesn't have
* the RI bit in the MSR.
@@ -1187,7 +1187,7 @@ load_dbcr0:
global_dbcr0:
.space 8*NR_CPUS
.previous
-#endif /* !(CONFIG_4xx || CONFIG_BOOKE) */
+#endif /* !CONFIG_BOOKE */
do_work: /* r10 contains MSR_KERNEL here */
andi. r0,r9,_TIF_NEED_RESCHED
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index db5ab092b36b..e9bdf6c36c18 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -234,7 +234,7 @@ _GLOBAL(_nmask_and_or_msr)
*/
#ifndef CONFIG_PPC_8xx
_GLOBAL(flush_instruction_cache)
-#if defined(CONFIG_4xx)
+#ifdef CONFIG_44x
lis r3, KERNELBASE@h
iccci 0,r3
#elif defined(CONFIG_FSL_BOOKE)
@@ -256,7 +256,7 @@ _GLOBAL(flush_instruction_cache)
mfspr r3,SPRN_HID0
ori r3,r3,HID0_ICFI
mtspr SPRN_HID0,r3
-#endif /* CONFIG_4xx */
+#endif /* CONFIG_44x */
isync
blr
EXPORT_SYMBOL(flush_instruction_cache)
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 110db94cdf3c..30ecc827624b 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1408,7 +1408,7 @@ void show_regs(struct pt_regs * regs)
if ((TRAP(regs) != 0xc00) && cpu_has_feature(CPU_FTR_CFAR))
pr_cont("CFAR: "REG" ", regs->orig_gpr3);
if (trap == 0x200 || trap == 0x300 || trap == 0x600)
-#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
+#ifdef CONFIG_BOOKE
pr_cont("DEAR: "REG" ESR: "REG" ", regs->dar, regs->dsisr);
#else
pr_cont("DAR: "REG" DSISR: %08lx ", regs->dar, regs->dsisr);
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index 8db0507619e2..28e765de6933 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -402,7 +402,7 @@ static void sanity_check_fault(bool is_write, bool is_user,
* Define the correct "is_write" bit in error_code based
* on the processor family
*/
-#if (defined(CONFIG_4xx) || defined(CONFIG_BOOKE))
+#ifdef CONFIG_BOOKE
#define page_fault_is_write(__err) ((__err) & ESR_DST)
#define page_fault_is_bad(__err) (0)
#else
diff --git a/arch/powerpc/mm/ptdump/Makefile b/arch/powerpc/mm/ptdump/Makefile
index 712762be3cb1..3cf759e639a1 100644
--- a/arch/powerpc/mm/ptdump/Makefile
+++ b/arch/powerpc/mm/ptdump/Makefile
@@ -2,7 +2,7 @@
obj-y += ptdump.o
-obj-$(CONFIG_4xx) += shared.o
+obj-$(CONFIG_44x) += shared.o
obj-$(CONFIG_PPC_8xx) += 8xx.o
obj-$(CONFIG_PPC_BOOK3E_MMU) += shared.o
obj-$(CONFIG_PPC_BOOK3S_32) += shared.o bats.o segment_regs.o
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 1055175cd026..08b0d12a0a9d 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -240,11 +240,6 @@ config FSL_EMB_PERF_EVENT_E500
depends on FSL_EMB_PERF_EVENT && E500
default y
-config 4xx
- bool
- depends on 44x
- default y
-
config BOOKE
bool
depends on E200 || E500 || 44x || PPC_BOOK3E
@@ -464,7 +459,7 @@ config NR_CPUS
config NOT_COHERENT_CACHE
bool
- depends on 4xx || PPC_8xx || E200 || PPC_MPC512x || \
+ depends on 44x || PPC_8xx || E200 || PPC_MPC512x || \
GAMECUBE_COMMON || AMIGAONE
select ARCH_HAS_DMA_PREP_COHERENT
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
diff --git a/arch/powerpc/platforms/Makefile b/arch/powerpc/platforms/Makefile
index cae14326bc49..f67b7fabac4e 100644
--- a/arch/powerpc/platforms/Makefile
+++ b/arch/powerpc/platforms/Makefile
@@ -4,8 +4,7 @@ obj-$(CONFIG_FSL_ULI1575) += fsl_uli1575.o
obj-$(CONFIG_PPC_PMAC) += powermac/
obj-$(CONFIG_PPC_CHRP) += chrp/
-obj-$(CONFIG_4xx) += 4xx/
-obj-$(CONFIG_44x) += 44x/
+obj-$(CONFIG_44x) += 4xx/ 44x/
obj-$(CONFIG_PPC_MPC512x) += 512x/
obj-$(CONFIG_PPC_MPC52xx) += 52xx/
obj-$(CONFIG_PPC_8xx) += 8xx/
diff --git a/arch/powerpc/sysdev/Kconfig b/arch/powerpc/sysdev/Kconfig
index 9ebcc1337560..7b3a0fc3eadf 100644
--- a/arch/powerpc/sysdev/Kconfig
+++ b/arch/powerpc/sysdev/Kconfig
@@ -5,17 +5,17 @@
config PPC4xx_PCI_EXPRESS
bool
- depends on PCI && 4xx
+ depends on PCI && 44x
config PPC4xx_HSTA_MSI
bool
depends on PCI_MSI
- depends on PCI && 4xx
+ depends on PCI && 44x
config PPC4xx_MSI
bool
depends on PCI_MSI
- depends on PCI && 4xx
+ depends on PCI && 44x
config PPC_MSI_BITMAP
bool
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index ea303b7e4e29..ef1f11e3f816 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -477,7 +477,7 @@ static inline void release_output_lock(void) {}
static inline int unrecoverable_excp(struct pt_regs *regs)
{
-#if defined(CONFIG_4xx) || defined(CONFIG_PPC_BOOK3E)
+#if defined(CONFIG_44x) || defined(CONFIG_PPC_BOOK3E)
/* We have no MSR_RI bit on 4xx or Book3e, so we simply return false */
return 0;
#else
--
2.25.0
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