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Message-Id: <20201218184347.2180772-12-sam@ravnborg.org>
Date: Fri, 18 Dec 2020 19:43:45 +0100
From: Sam Ravnborg <sam@...nborg.org>
To: David S Miller <davem@...emloft.net>, sparclinux@...r.kernel.org,
Andreas Larsson <andreas@...sler.com>,
Arnd Bergmann <arnd@...nel.org>
Cc: Alexey Dobriyan <adobriyan@...il.com>,
Al Viro <viro@...iv.linux.org.uk>,
Andrew Morton <akpm@...ux-foundation.org>,
Anshuman Khandual <anshuman.khandual@....com>,
Arvind Sankar <nivedita@...m.mit.edu>,
Christian Brauner <christian.brauner@...ntu.com>,
Denis Efremov <efremov@...ux.com>,
Dmitry Safonov <0x7f454c46@...il.com>,
Geert Uytterhoeven <geert@...ux-m68k.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Ira Weiny <ira.weiny@...el.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
Mark Rutland <mark.rutland@....com>,
Mike Rapoport <rppt@...nel.org>,
Pekka Enberg <penberg@...nel.org>,
Peter Zijlstra <peterz@...radead.org>,
Sam Ravnborg <sam@...nborg.org>,
Stephen Rothwell <sfr@...b.auug.org.au>,
Thomas Gleixner <tglx@...utronix.de>,
Will Deacon <will@...nel.org>, Willy Tarreau <w@....eu>,
linux-kernel@...r.kernel.org, debian-sparc@...ts.debian.org,
gentoo-sparc@....o
Subject: [PATCH v1 11/13] sparc32: Drop unused mmu models
Drop mmu models not used by LEON, including their header files.
This includes removal of unused includes in various files to fix the
build.
Signed-off-by: Sam Ravnborg <sam@...nborg.org>
Cc: Sam Ravnborg <sam@...nborg.org>
Cc: "David S. Miller" <davem@...emloft.net>
Cc: Will Deacon <will@...nel.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Mike Rapoport <rppt@...nel.org>
Cc: Christian Brauner <christian.brauner@...ntu.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Pekka Enberg <penberg@...nel.org>
Cc: Ira Weiny <ira.weiny@...el.com>
Cc: Arnd Bergmann <arnd@...nel.org>
Cc: Andreas Larsson <andreas@...sler.com>
---
arch/sparc/include/asm/mxcc.h | 138 ------
arch/sparc/include/asm/ross.h | 192 --------
arch/sparc/include/asm/swift.h | 107 -----
arch/sparc/include/asm/tsunami.h | 65 ---
arch/sparc/include/asm/viking.h | 255 ----------
arch/sparc/kernel/entry.S | 1 -
arch/sparc/mm/Makefile | 1 -
arch/sparc/mm/hypersparc.S | 414 -----------------
arch/sparc/mm/io-unit.c | 1 -
arch/sparc/mm/iommu.c | 31 +-
arch/sparc/mm/mm_32.h | 1 -
arch/sparc/mm/srmmu.c | 776 +------------------------------
arch/sparc/mm/swift.S | 256 ----------
arch/sparc/mm/tsunami.S | 132 ------
arch/sparc/mm/viking.S | 284 -----------
15 files changed, 21 insertions(+), 2633 deletions(-)
delete mode 100644 arch/sparc/include/asm/mxcc.h
delete mode 100644 arch/sparc/include/asm/ross.h
delete mode 100644 arch/sparc/include/asm/swift.h
delete mode 100644 arch/sparc/include/asm/tsunami.h
delete mode 100644 arch/sparc/include/asm/viking.h
delete mode 100644 arch/sparc/mm/hypersparc.S
delete mode 100644 arch/sparc/mm/swift.S
delete mode 100644 arch/sparc/mm/tsunami.S
delete mode 100644 arch/sparc/mm/viking.S
diff --git a/arch/sparc/include/asm/mxcc.h b/arch/sparc/include/asm/mxcc.h
deleted file mode 100644
index 3a2561bea4dd..000000000000
--- a/arch/sparc/include/asm/mxcc.h
+++ /dev/null
@@ -1,138 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * mxcc.h: Definitions of the Viking MXCC registers
- *
- * Copyright (C) 1995 David S. Miller (davem@...p.rutgers.edu)
- */
-
-#ifndef _SPARC_MXCC_H
-#define _SPARC_MXCC_H
-
-/* These registers are accessed through ASI 0x2. */
-#define MXCC_DATSTREAM 0x1C00000 /* Data stream register */
-#define MXCC_SRCSTREAM 0x1C00100 /* Source stream register */
-#define MXCC_DESSTREAM 0x1C00200 /* Destination stream register */
-#define MXCC_RMCOUNT 0x1C00300 /* Count of references and misses */
-#define MXCC_STEST 0x1C00804 /* Internal self-test */
-#define MXCC_CREG 0x1C00A04 /* Control register */
-#define MXCC_SREG 0x1C00B00 /* Status register */
-#define MXCC_RREG 0x1C00C04 /* Reset register */
-#define MXCC_EREG 0x1C00E00 /* Error code register */
-#define MXCC_PREG 0x1C00F04 /* Address port register */
-
-/* Some MXCC constants. */
-#define MXCC_STREAM_SIZE 0x20 /* Size in bytes of one stream r/w */
-
-/* The MXCC Control Register:
- *
- * ----------------------------------------------------------------------
- * | | RRC | RSV |PRE|MCE|PARE|ECE|RSV|
- * ----------------------------------------------------------------------
- * 31 10 9 8-6 5 4 3 2 1-0
- *
- * RRC: Controls what you read from MXCC_RMCOUNT reg.
- * 0=Misses 1=References
- * PRE: Prefetch enable
- * MCE: Multiple Command Enable
- * PARE: Parity enable
- * ECE: External cache enable
- */
-
-#define MXCC_CTL_RRC 0x00000200
-#define MXCC_CTL_PRE 0x00000020
-#define MXCC_CTL_MCE 0x00000010
-#define MXCC_CTL_PARE 0x00000008
-#define MXCC_CTL_ECE 0x00000004
-
-/* The MXCC Error Register:
- *
- * --------------------------------------------------------
- * |ME| RSV|CE|PEW|PEE|ASE|EIV| MOPC|ECODE|PRIV|RSV|HPADDR|
- * --------------------------------------------------------
- * 31 30 29 28 27 26 25 24-15 14-7 6 5-3 2-0
- *
- * ME: Multiple Errors have occurred
- * CE: Cache consistency Error
- * PEW: Parity Error during a Write operation
- * PEE: Parity Error involving the External cache
- * ASE: ASynchronous Error
- * EIV: This register is toast
- * MOPC: MXCC Operation Code for instance causing error
- * ECODE: The Error CODE
- * PRIV: A privileged mode error? 0=no 1=yes
- * HPADDR: High PhysicalADDRess bits (35-32)
- */
-
-#define MXCC_ERR_ME 0x80000000
-#define MXCC_ERR_CE 0x20000000
-#define MXCC_ERR_PEW 0x10000000
-#define MXCC_ERR_PEE 0x08000000
-#define MXCC_ERR_ASE 0x04000000
-#define MXCC_ERR_EIV 0x02000000
-#define MXCC_ERR_MOPC 0x01FF8000
-#define MXCC_ERR_ECODE 0x00007F80
-#define MXCC_ERR_PRIV 0x00000040
-#define MXCC_ERR_HPADDR 0x0000000f
-
-/* The MXCC Port register:
- *
- * -----------------------------------------------------
- * | | MID | |
- * -----------------------------------------------------
- * 31 21 20-18 17 0
- *
- * MID: The moduleID of the cpu your read this from.
- */
-
-#ifndef __ASSEMBLY__
-
-static inline void mxcc_set_stream_src(unsigned long *paddr)
-{
- unsigned long data0 = paddr[0];
- unsigned long data1 = paddr[1];
-
- __asm__ __volatile__ ("or %%g0, %0, %%g2\n\t"
- "or %%g0, %1, %%g3\n\t"
- "stda %%g2, [%2] %3\n\t" : :
- "r" (data0), "r" (data1),
- "r" (MXCC_SRCSTREAM),
- "i" (ASI_M_MXCC) : "g2", "g3");
-}
-
-static inline void mxcc_set_stream_dst(unsigned long *paddr)
-{
- unsigned long data0 = paddr[0];
- unsigned long data1 = paddr[1];
-
- __asm__ __volatile__ ("or %%g0, %0, %%g2\n\t"
- "or %%g0, %1, %%g3\n\t"
- "stda %%g2, [%2] %3\n\t" : :
- "r" (data0), "r" (data1),
- "r" (MXCC_DESSTREAM),
- "i" (ASI_M_MXCC) : "g2", "g3");
-}
-
-static inline unsigned long mxcc_get_creg(void)
-{
- unsigned long mxcc_control;
-
- __asm__ __volatile__("set 0xffffffff, %%g2\n\t"
- "set 0xffffffff, %%g3\n\t"
- "stda %%g2, [%1] %2\n\t"
- "lda [%3] %2, %0\n\t" :
- "=r" (mxcc_control) :
- "r" (MXCC_EREG), "i" (ASI_M_MXCC),
- "r" (MXCC_CREG) : "g2", "g3");
- return mxcc_control;
-}
-
-static inline void mxcc_set_creg(unsigned long mxcc_control)
-{
- __asm__ __volatile__("sta %0, [%1] %2\n\t" : :
- "r" (mxcc_control), "r" (MXCC_CREG),
- "i" (ASI_M_MXCC));
-}
-
-#endif /* !__ASSEMBLY__ */
-
-#endif /* !(_SPARC_MXCC_H) */
diff --git a/arch/sparc/include/asm/ross.h b/arch/sparc/include/asm/ross.h
deleted file mode 100644
index 79a54d66a2c0..000000000000
--- a/arch/sparc/include/asm/ross.h
+++ /dev/null
@@ -1,192 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * ross.h: Ross module specific definitions and defines.
- *
- * Copyright (C) 1995 David S. Miller (davem@...p.rutgers.edu)
- */
-
-#ifndef _SPARC_ROSS_H
-#define _SPARC_ROSS_H
-
-#include <asm/asi.h>
-#include <asm/page.h>
-
-/* Ross made Hypersparcs have a %psr 'impl' field of '0001'. The 'vers'
- * field has '1111'.
- */
-
-/* The MMU control register fields on the HyperSparc.
- *
- * -----------------------------------------------------------------
- * |implvers| RSV |CWR|SE|WBE| MID |BM| C|CS|MR|CM|RSV|CE|RSV|NF|ME|
- * -----------------------------------------------------------------
- * 31 24 23-22 21 20 19 18-15 14 13 12 11 10 9 8 7-2 1 0
- *
- * Phew, lots of fields there ;-)
- *
- * CWR: Cache Wrapping Enabled, if one cache wrapping is on.
- * SE: Snoop Enable, turns on bus snooping for cache activity if one.
- * WBE: Write Buffer Enable, one turns it on.
- * MID: The ModuleID of the chip for MBus transactions.
- * BM: Boot-Mode. One indicates the MMU is in boot mode.
- * C: Indicates whether accesses are cachable while the MMU is
- * disabled.
- * CS: Cache Size -- 0 = 128k, 1 = 256k
- * MR: Memory Reflection, one indicates that the memory bus connected
- * to the MBus supports memory reflection.
- * CM: Cache Mode -- 0 = write-through, 1 = copy-back
- * CE: Cache Enable -- 0 = no caching, 1 = cache is on
- * NF: No Fault -- 0 = faults trap the CPU from supervisor mode
- * 1 = faults from supervisor mode do not generate traps
- * ME: MMU Enable -- 0 = MMU is off, 1 = MMU is on
- */
-
-#define HYPERSPARC_CWENABLE 0x00200000
-#define HYPERSPARC_SBENABLE 0x00100000
-#define HYPERSPARC_WBENABLE 0x00080000
-#define HYPERSPARC_MIDMASK 0x00078000
-#define HYPERSPARC_BMODE 0x00004000
-#define HYPERSPARC_ACENABLE 0x00002000
-#define HYPERSPARC_CSIZE 0x00001000
-#define HYPERSPARC_MRFLCT 0x00000800
-#define HYPERSPARC_CMODE 0x00000400
-#define HYPERSPARC_CENABLE 0x00000100
-#define HYPERSPARC_NFAULT 0x00000002
-#define HYPERSPARC_MENABLE 0x00000001
-
-
-/* The ICCR instruction cache register on the HyperSparc.
- *
- * -----------------------------------------------
- * | | FTD | ICE |
- * -----------------------------------------------
- * 31 1 0
- *
- * This register is accessed using the V8 'wrasr' and 'rdasr'
- * opcodes, since not all assemblers understand them and those
- * that do use different semantics I will just hard code the
- * instruction with a '.word' statement.
- *
- * FTD: If set to one flush instructions executed during an
- * instruction cache hit occurs, the corresponding line
- * for said cache-hit is invalidated. If FTD is zero,
- * an unimplemented 'flush' trap will occur when any
- * flush is executed by the processor.
- *
- * ICE: If set to one, the instruction cache is enabled. If
- * zero, the cache will not be used for instruction fetches.
- *
- * All other bits are read as zeros, and writes to them have no
- * effect.
- *
- * Wheee, not many assemblers understand the %iccr register nor
- * the generic asr r/w instructions.
- *
- * 1000 0011 0100 0111 1100 0000 0000 0000 ! rd %iccr, %g1
- *
- * 0x 8 3 4 7 c 0 0 0 ! 0x8347c000
- *
- * 1011 1111 1000 0000 0110 0000 0000 0000 ! wr %g1, 0x0, %iccr
- *
- * 0x b f 8 0 6 0 0 0 ! 0xbf806000
- *
- */
-
-#define HYPERSPARC_ICCR_FTD 0x00000002
-#define HYPERSPARC_ICCR_ICE 0x00000001
-
-#ifndef __ASSEMBLY__
-
-static inline unsigned int get_ross_icr(void)
-{
- unsigned int icreg;
-
- __asm__ __volatile__(".word 0x8347c000\n\t" /* rd %iccr, %g1 */
- "mov %%g1, %0\n\t"
- : "=r" (icreg)
- : /* no inputs */
- : "g1", "memory");
-
- return icreg;
-}
-
-static inline void put_ross_icr(unsigned int icreg)
-{
- __asm__ __volatile__("or %%g0, %0, %%g1\n\t"
- ".word 0xbf806000\n\t" /* wr %g1, 0x0, %iccr */
- "nop\n\t"
- "nop\n\t"
- "nop\n\t"
- : /* no outputs */
- : "r" (icreg)
- : "g1", "memory");
-
- return;
-}
-
-/* HyperSparc specific cache flushing. */
-
-/* This is for the on-chip instruction cache. */
-static inline void hyper_flush_whole_icache(void)
-{
- __asm__ __volatile__("sta %%g0, [%%g0] %0\n\t"
- : /* no outputs */
- : "i" (ASI_M_FLUSH_IWHOLE)
- : "memory");
- return;
-}
-
-extern int vac_cache_size;
-extern int vac_line_size;
-
-static inline void hyper_clear_all_tags(void)
-{
- unsigned long addr;
-
- for(addr = 0; addr < vac_cache_size; addr += vac_line_size)
- __asm__ __volatile__("sta %%g0, [%0] %1\n\t"
- : /* no outputs */
- : "r" (addr), "i" (ASI_M_DATAC_TAG)
- : "memory");
-}
-
-static inline void hyper_flush_unconditional_combined(void)
-{
- unsigned long addr;
-
- for (addr = 0; addr < vac_cache_size; addr += vac_line_size)
- __asm__ __volatile__("sta %%g0, [%0] %1\n\t"
- : /* no outputs */
- : "r" (addr), "i" (ASI_M_FLUSH_CTX)
- : "memory");
-}
-
-static inline void hyper_flush_cache_user(void)
-{
- unsigned long addr;
-
- for (addr = 0; addr < vac_cache_size; addr += vac_line_size)
- __asm__ __volatile__("sta %%g0, [%0] %1\n\t"
- : /* no outputs */
- : "r" (addr), "i" (ASI_M_FLUSH_USER)
- : "memory");
-}
-
-static inline void hyper_flush_cache_page(unsigned long page)
-{
- unsigned long end;
-
- page &= PAGE_MASK;
- end = page + PAGE_SIZE;
- while (page < end) {
- __asm__ __volatile__("sta %%g0, [%0] %1\n\t"
- : /* no outputs */
- : "r" (page), "i" (ASI_M_FLUSH_PAGE)
- : "memory");
- page += vac_line_size;
- }
-}
-
-#endif /* !(__ASSEMBLY__) */
-
-#endif /* !(_SPARC_ROSS_H) */
diff --git a/arch/sparc/include/asm/swift.h b/arch/sparc/include/asm/swift.h
deleted file mode 100644
index 96f6526b964e..000000000000
--- a/arch/sparc/include/asm/swift.h
+++ /dev/null
@@ -1,107 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/* swift.h: Specific definitions for the _broken_ Swift SRMMU
- * MMU module.
- *
- * Copyright (C) 1996 David S. Miller (davem@...p.rutgers.edu)
- */
-
-#ifndef _SPARC_SWIFT_H
-#define _SPARC_SWIFT_H
-
-/* Swift is so brain damaged, here is the mmu control register. */
-#define SWIFT_ST 0x00800000 /* SW tablewalk enable */
-#define SWIFT_WP 0x00400000 /* Watchpoint enable */
-
-/* Branch folding (buggy, disable on production systems!) */
-#define SWIFT_BF 0x00200000
-#define SWIFT_PMC 0x00180000 /* Page mode control */
-#define SWIFT_PE 0x00040000 /* Parity enable */
-#define SWIFT_PC 0x00020000 /* Parity control */
-#define SWIFT_AP 0x00010000 /* Graphics page mode control (TCX/SX) */
-#define SWIFT_AC 0x00008000 /* Alternate Cacheability (see viking.h) */
-#define SWIFT_BM 0x00004000 /* Boot mode */
-#define SWIFT_RC 0x00003c00 /* DRAM refresh control */
-#define SWIFT_IE 0x00000200 /* Instruction cache enable */
-#define SWIFT_DE 0x00000100 /* Data cache enable */
-#define SWIFT_SA 0x00000080 /* Store Allocate */
-#define SWIFT_NF 0x00000002 /* No fault mode */
-#define SWIFT_EN 0x00000001 /* MMU enable */
-
-/* Bits [13:5] select one of 512 instruction cache tags */
-static inline void swift_inv_insn_tag(unsigned long addr)
-{
- __asm__ __volatile__("sta %%g0, [%0] %1\n\t"
- : /* no outputs */
- : "r" (addr), "i" (ASI_M_TXTC_TAG)
- : "memory");
-}
-
-/* Bits [12:4] select one of 512 data cache tags */
-static inline void swift_inv_data_tag(unsigned long addr)
-{
- __asm__ __volatile__("sta %%g0, [%0] %1\n\t"
- : /* no outputs */
- : "r" (addr), "i" (ASI_M_DATAC_TAG)
- : "memory");
-}
-
-static inline void swift_flush_dcache(void)
-{
- unsigned long addr;
-
- for (addr = 0; addr < 0x2000; addr += 0x10)
- swift_inv_data_tag(addr);
-}
-
-static inline void swift_flush_icache(void)
-{
- unsigned long addr;
-
- for (addr = 0; addr < 0x4000; addr += 0x20)
- swift_inv_insn_tag(addr);
-}
-
-static inline void swift_idflash_clear(void)
-{
- unsigned long addr;
-
- for (addr = 0; addr < 0x2000; addr += 0x10) {
- swift_inv_insn_tag(addr<<1);
- swift_inv_data_tag(addr);
- }
-}
-
-/* Swift is so broken, it isn't even safe to use the following. */
-static inline void swift_flush_page(unsigned long page)
-{
- __asm__ __volatile__("sta %%g0, [%0] %1\n\t"
- : /* no outputs */
- : "r" (page), "i" (ASI_M_FLUSH_PAGE)
- : "memory");
-}
-
-static inline void swift_flush_segment(unsigned long addr)
-{
- __asm__ __volatile__("sta %%g0, [%0] %1\n\t"
- : /* no outputs */
- : "r" (addr), "i" (ASI_M_FLUSH_SEG)
- : "memory");
-}
-
-static inline void swift_flush_region(unsigned long addr)
-{
- __asm__ __volatile__("sta %%g0, [%0] %1\n\t"
- : /* no outputs */
- : "r" (addr), "i" (ASI_M_FLUSH_REGION)
- : "memory");
-}
-
-static inline void swift_flush_context(void)
-{
- __asm__ __volatile__("sta %%g0, [%%g0] %0\n\t"
- : /* no outputs */
- : "i" (ASI_M_FLUSH_CTX)
- : "memory");
-}
-
-#endif /* !(_SPARC_SWIFT_H) */
diff --git a/arch/sparc/include/asm/tsunami.h b/arch/sparc/include/asm/tsunami.h
deleted file mode 100644
index acaf014eff46..000000000000
--- a/arch/sparc/include/asm/tsunami.h
+++ /dev/null
@@ -1,65 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * tsunami.h: Module specific definitions for Tsunami V8 Sparcs
- *
- * Copyright (C) 1995 David S. Miller (davem@...p.rutgers.edu)
- */
-
-#ifndef _SPARC_TSUNAMI_H
-#define _SPARC_TSUNAMI_H
-
-#include <asm/asi.h>
-
-/* The MMU control register on the Tsunami:
- *
- * -----------------------------------------------------------------------
- * | implvers |SW|AV|DV|MV| RSV |PC|ITD|ALC| RSV |PE| RC |IE|DE|RSV|NF|ME|
- * -----------------------------------------------------------------------
- * 31 24 23 22 21 20 19-18 17 16 14 13-12 11 10-9 8 7 6-2 1 0
- *
- * SW: Enable Software Table Walks 0=off 1=on
- * AV: Address View bit
- * DV: Data View bit
- * MV: Memory View bit
- * PC: Parity Control
- * ITD: ITBR disable
- * ALC: Alternate Cacheable
- * PE: Parity Enable 0=off 1=on
- * RC: Refresh Control
- * IE: Instruction cache Enable 0=off 1=on
- * DE: Data cache Enable 0=off 1=on
- * NF: No Fault, same as all other SRMMUs
- * ME: MMU Enable, same as all other SRMMUs
- */
-
-#define TSUNAMI_SW 0x00800000
-#define TSUNAMI_AV 0x00400000
-#define TSUNAMI_DV 0x00200000
-#define TSUNAMI_MV 0x00100000
-#define TSUNAMI_PC 0x00020000
-#define TSUNAMI_ITD 0x00010000
-#define TSUNAMI_ALC 0x00008000
-#define TSUNAMI_PE 0x00001000
-#define TSUNAMI_RCMASK 0x00000C00
-#define TSUNAMI_IENAB 0x00000200
-#define TSUNAMI_DENAB 0x00000100
-#define TSUNAMI_NF 0x00000002
-#define TSUNAMI_ME 0x00000001
-
-static inline void tsunami_flush_icache(void)
-{
- __asm__ __volatile__("sta %%g0, [%%g0] %0\n\t"
- : /* no outputs */
- : "i" (ASI_M_IC_FLCLEAR)
- : "memory");
-}
-
-static inline void tsunami_flush_dcache(void)
-{
- __asm__ __volatile__("sta %%g0, [%%g0] %0\n\t"
- : /* no outputs */
- : "i" (ASI_M_DC_FLCLEAR)
- : "memory");
-}
-
-#endif /* !(_SPARC_TSUNAMI_H) */
diff --git a/arch/sparc/include/asm/viking.h b/arch/sparc/include/asm/viking.h
deleted file mode 100644
index 08ffc605035f..000000000000
--- a/arch/sparc/include/asm/viking.h
+++ /dev/null
@@ -1,255 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * viking.h: Defines specific to the GNU/Viking MBUS module.
- * This is SRMMU stuff.
- *
- * Copyright (C) 1995 David S. Miller (davem@...p.rutgers.edu)
- */
-#ifndef _SPARC_VIKING_H
-#define _SPARC_VIKING_H
-
-#include <asm/asi.h>
-#include <asm/mxcc.h>
-#include <asm/pgtable.h>
-#include <asm/pgtsrmmu.h>
-
-/* Bits in the SRMMU control register for GNU/Viking modules.
- *
- * -----------------------------------------------------------
- * |impl-vers| RSV |TC|AC|SP|BM|PC|MBM|SB|IC|DC|PSO|RSV|NF|ME|
- * -----------------------------------------------------------
- * 31 24 23-17 16 15 14 13 12 11 10 9 8 7 6-2 1 0
- *
- * TC: Tablewalk Cacheable -- 0 = Twalks are not cacheable in E-cache
- * 1 = Twalks are cacheable in E-cache
- *
- * GNU/Viking will only cache tablewalks in the E-cache (mxcc) if present
- * and never caches them internally (or so states the docs). Therefore
- * for machines lacking an E-cache (ie. in MBUS mode) this bit must
- * remain cleared.
- *
- * AC: Alternate Cacheable -- 0 = Passthru physical accesses not cacheable
- * 1 = Passthru physical accesses cacheable
- *
- * This indicates whether accesses are cacheable when no cachable bit
- * is present in the pte when the processor is in boot-mode or the
- * access does not need pte's for translation (ie. pass-thru ASI's).
- * "Cachable" is only referring to E-cache (if present) and not the
- * on chip split I/D caches of the GNU/Viking.
- *
- * SP: SnooP Enable -- 0 = bus snooping off, 1 = bus snooping on
- *
- * This enables snooping on the GNU/Viking bus. This must be on
- * for the hardware cache consistency mechanisms of the GNU/Viking
- * to work at all. On non-mxcc GNU/Viking modules the split I/D
- * caches will snoop regardless of whether they are enabled, this
- * takes care of the case where the I or D or both caches are turned
- * off yet still contain valid data. Note also that this bit does
- * not affect GNU/Viking store-buffer snoops, those happen if the
- * store-buffer is enabled no matter what.
- *
- * BM: Boot Mode -- 0 = not in boot mode, 1 = in boot mode
- *
- * This indicates whether the GNU/Viking is in boot-mode or not,
- * if it is then all instruction fetch physical addresses are
- * computed as 0xff0000000 + low 28 bits of requested address.
- * GNU/Viking boot-mode does not affect data accesses. Also,
- * in boot mode instruction accesses bypass the split on chip I/D
- * caches, they may be cached by the GNU/MXCC if present and enabled.
- *
- * MBM: MBus Mode -- 0 = not in MBus mode, 1 = in MBus mode
- *
- * This indicated the GNU/Viking configuration present. If in
- * MBUS mode, the GNU/Viking lacks a GNU/MXCC E-cache. If it is
- * not then the GNU/Viking is on a module VBUS connected directly
- * to a GNU/MXCC cache controller. The GNU/MXCC can be thus connected
- * to either an GNU/MBUS (sun4m) or the packet-switched GNU/XBus (sun4d).
- *
- * SB: StoreBuffer enable -- 0 = store buffer off, 1 = store buffer on
- *
- * The GNU/Viking store buffer allows the chip to continue execution
- * after a store even if the data cannot be placed in one of the
- * caches during that cycle. If disabled, all stores operations
- * occur synchronously.
- *
- * IC: Instruction Cache -- 0 = off, 1 = on
- * DC: Data Cache -- 0 = off, 1 = 0n
- *
- * These bits enable the on-cpu GNU/Viking split I/D caches. Note,
- * as mentioned above, these caches will snoop the bus in GNU/MBUS
- * configurations even when disabled to avoid data corruption.
- *
- * NF: No Fault -- 0 = faults generate traps, 1 = faults don't trap
- * ME: MMU enable -- 0 = mmu not translating, 1 = mmu translating
- *
- */
-
-#define VIKING_MMUENABLE 0x00000001
-#define VIKING_NOFAULT 0x00000002
-#define VIKING_PSO 0x00000080
-#define VIKING_DCENABLE 0x00000100 /* Enable data cache */
-#define VIKING_ICENABLE 0x00000200 /* Enable instruction cache */
-#define VIKING_SBENABLE 0x00000400 /* Enable store buffer */
-#define VIKING_MMODE 0x00000800 /* MBUS mode */
-#define VIKING_PCENABLE 0x00001000 /* Enable parity checking */
-#define VIKING_BMODE 0x00002000
-#define VIKING_SPENABLE 0x00004000 /* Enable bus cache snooping */
-#define VIKING_ACENABLE 0x00008000 /* Enable alternate caching */
-#define VIKING_TCENABLE 0x00010000 /* Enable table-walks to be cached */
-#define VIKING_DPENABLE 0x00040000 /* Enable the data prefetcher */
-
-/*
- * GNU/Viking Breakpoint Action Register fields.
- */
-#define VIKING_ACTION_MIX 0x00001000 /* Enable multiple instructions */
-
-/*
- * GNU/Viking Cache Tags.
- */
-#define VIKING_PTAG_VALID 0x01000000 /* Cache block is valid */
-#define VIKING_PTAG_DIRTY 0x00010000 /* Block has been modified */
-#define VIKING_PTAG_SHARED 0x00000100 /* Shared with some other cache */
-
-#ifndef __ASSEMBLY__
-
-static inline void viking_flush_icache(void)
-{
- __asm__ __volatile__("sta %%g0, [%%g0] %0\n\t"
- : /* no outputs */
- : "i" (ASI_M_IC_FLCLEAR)
- : "memory");
-}
-
-static inline void viking_flush_dcache(void)
-{
- __asm__ __volatile__("sta %%g0, [%%g0] %0\n\t"
- : /* no outputs */
- : "i" (ASI_M_DC_FLCLEAR)
- : "memory");
-}
-
-static inline void viking_unlock_icache(void)
-{
- __asm__ __volatile__("sta %%g0, [%0] %1\n\t"
- : /* no outputs */
- : "r" (0x80000000), "i" (ASI_M_IC_FLCLEAR)
- : "memory");
-}
-
-static inline void viking_unlock_dcache(void)
-{
- __asm__ __volatile__("sta %%g0, [%0] %1\n\t"
- : /* no outputs */
- : "r" (0x80000000), "i" (ASI_M_DC_FLCLEAR)
- : "memory");
-}
-
-static inline void viking_set_bpreg(unsigned long regval)
-{
- __asm__ __volatile__("sta %0, [%%g0] %1\n\t"
- : /* no outputs */
- : "r" (regval), "i" (ASI_M_ACTION)
- : "memory");
-}
-
-static inline unsigned long viking_get_bpreg(void)
-{
- unsigned long regval;
-
- __asm__ __volatile__("lda [%%g0] %1, %0\n\t"
- : "=r" (regval)
- : "i" (ASI_M_ACTION));
- return regval;
-}
-
-static inline void viking_get_dcache_ptag(int set, int block,
- unsigned long *data)
-{
- unsigned long ptag = ((set & 0x7f) << 5) | ((block & 0x3) << 26) |
- 0x80000000;
- unsigned long info, page;
-
- __asm__ __volatile__ ("ldda [%2] %3, %%g2\n\t"
- "or %%g0, %%g2, %0\n\t"
- "or %%g0, %%g3, %1\n\t"
- : "=r" (info), "=r" (page)
- : "r" (ptag), "i" (ASI_M_DATAC_TAG)
- : "g2", "g3");
- data[0] = info;
- data[1] = page;
-}
-
-static inline void viking_mxcc_turn_off_parity(unsigned long *mregp,
- unsigned long *mxcc_cregp)
-{
- unsigned long mreg = *mregp;
- unsigned long mxcc_creg = *mxcc_cregp;
-
- mreg &= ~(VIKING_PCENABLE);
- mxcc_creg &= ~(MXCC_CTL_PARE);
-
- __asm__ __volatile__ ("set 1f, %%g2\n\t"
- "andcc %%g2, 4, %%g0\n\t"
- "bne 2f\n\t"
- " nop\n"
- "1:\n\t"
- "sta %0, [%%g0] %3\n\t"
- "sta %1, [%2] %4\n\t"
- "b 1f\n\t"
- " nop\n\t"
- "nop\n"
- "2:\n\t"
- "sta %0, [%%g0] %3\n\t"
- "sta %1, [%2] %4\n"
- "1:\n\t"
- : /* no output */
- : "r" (mreg), "r" (mxcc_creg),
- "r" (MXCC_CREG), "i" (ASI_M_MMUREGS),
- "i" (ASI_M_MXCC)
- : "g2", "memory", "cc");
- *mregp = mreg;
- *mxcc_cregp = mxcc_creg;
-}
-
-static inline unsigned long viking_hwprobe(unsigned long vaddr)
-{
- unsigned long val;
-
- vaddr &= PAGE_MASK;
- /* Probe all MMU entries. */
- __asm__ __volatile__("lda [%1] %2, %0\n\t"
- : "=r" (val)
- : "r" (vaddr | 0x400), "i" (ASI_M_FLUSH_PROBE));
- if (!val)
- return 0;
-
- /* Probe region. */
- __asm__ __volatile__("lda [%1] %2, %0\n\t"
- : "=r" (val)
- : "r" (vaddr | 0x200), "i" (ASI_M_FLUSH_PROBE));
- if ((val & SRMMU_ET_MASK) == SRMMU_ET_PTE) {
- vaddr &= ~PGDIR_MASK;
- vaddr >>= PAGE_SHIFT;
- return val | (vaddr << 8);
- }
-
- /* Probe segment. */
- __asm__ __volatile__("lda [%1] %2, %0\n\t"
- : "=r" (val)
- : "r" (vaddr | 0x100), "i" (ASI_M_FLUSH_PROBE));
- if ((val & SRMMU_ET_MASK) == SRMMU_ET_PTE) {
- vaddr &= ~PMD_MASK;
- vaddr >>= PAGE_SHIFT;
- return val | (vaddr << 8);
- }
-
- /* Probe page. */
- __asm__ __volatile__("lda [%1] %2, %0\n\t"
- : "=r" (val)
- : "r" (vaddr), "i" (ASI_M_FLUSH_PROBE));
- return val;
-}
-
-#endif /* !__ASSEMBLY__ */
-
-#endif /* !(_SPARC_VIKING_H) */
diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S
index 451eaae85760..a24dcfa44e19 100644
--- a/arch/sparc/kernel/entry.S
+++ b/arch/sparc/kernel/entry.S
@@ -24,7 +24,6 @@
#include <asm/winmacro.h>
#include <asm/signal.h>
#include <asm/obio.h>
-#include <asm/mxcc.h>
#include <asm/thread_info.h>
#include <asm/param.h>
#include <asm/unistd.h>
diff --git a/arch/sparc/mm/Makefile b/arch/sparc/mm/Makefile
index 68db1f859b02..087d35e81e7b 100644
--- a/arch/sparc/mm/Makefile
+++ b/arch/sparc/mm/Makefile
@@ -10,7 +10,6 @@ obj-y += fault_$(BITS).o
obj-y += init_$(BITS).o
obj-$(CONFIG_SPARC32) += extable.o srmmu.o iommu.o io-unit.o
obj-$(CONFIG_SPARC32) += srmmu_access.o
-obj-$(CONFIG_SPARC32) += hypersparc.o viking.o tsunami.o swift.o
obj-$(CONFIG_SPARC32) += leon_mm.o
# Only used by sparc64
diff --git a/arch/sparc/mm/hypersparc.S b/arch/sparc/mm/hypersparc.S
deleted file mode 100644
index 6c2521e85a42..000000000000
--- a/arch/sparc/mm/hypersparc.S
+++ /dev/null
@@ -1,414 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * hypersparc.S: High speed Hypersparc mmu/cache operations.
- *
- * Copyright (C) 1997 David S. Miller (davem@...p.rutgers.edu)
- */
-
-#include <asm/ptrace.h>
-#include <asm/psr.h>
-#include <asm/asm-offsets.h>
-#include <asm/asi.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/pgtsrmmu.h>
-#include <linux/init.h>
-
- .text
- .align 4
-
- .globl hypersparc_flush_cache_all, hypersparc_flush_cache_mm
- .globl hypersparc_flush_cache_range, hypersparc_flush_cache_page
- .globl hypersparc_flush_page_to_ram
- .globl hypersparc_flush_page_for_dma, hypersparc_flush_sig_insns
- .globl hypersparc_flush_tlb_all, hypersparc_flush_tlb_mm
- .globl hypersparc_flush_tlb_range, hypersparc_flush_tlb_page
-
-hypersparc_flush_cache_all:
- WINDOW_FLUSH(%g4, %g5)
- sethi %hi(vac_cache_size), %g4
- ld [%g4 + %lo(vac_cache_size)], %g5
- sethi %hi(vac_line_size), %g1
- ld [%g1 + %lo(vac_line_size)], %g2
-1:
- subcc %g5, %g2, %g5 ! hyper_flush_unconditional_combined
- bne 1b
- sta %g0, [%g5] ASI_M_FLUSH_CTX
- retl
- sta %g0, [%g0] ASI_M_FLUSH_IWHOLE ! hyper_flush_whole_icache
-
- /* We expand the window flush to get maximum performance. */
-hypersparc_flush_cache_mm:
-#ifndef CONFIG_SMP
- ld [%o0 + AOFF_mm_context], %g1
- cmp %g1, -1
- be hypersparc_flush_cache_mm_out
-#endif
- WINDOW_FLUSH(%g4, %g5)
-
- sethi %hi(vac_line_size), %g1
- ld [%g1 + %lo(vac_line_size)], %o1
- sethi %hi(vac_cache_size), %g2
- ld [%g2 + %lo(vac_cache_size)], %o0
- add %o1, %o1, %g1
- add %o1, %g1, %g2
- add %o1, %g2, %g3
- add %o1, %g3, %g4
- add %o1, %g4, %g5
- add %o1, %g5, %o4
- add %o1, %o4, %o5
-
- /* BLAMMO! */
-1:
- subcc %o0, %o5, %o0 ! hyper_flush_cache_user
- sta %g0, [%o0 + %g0] ASI_M_FLUSH_USER
- sta %g0, [%o0 + %o1] ASI_M_FLUSH_USER
- sta %g0, [%o0 + %g1] ASI_M_FLUSH_USER
- sta %g0, [%o0 + %g2] ASI_M_FLUSH_USER
- sta %g0, [%o0 + %g3] ASI_M_FLUSH_USER
- sta %g0, [%o0 + %g4] ASI_M_FLUSH_USER
- sta %g0, [%o0 + %g5] ASI_M_FLUSH_USER
- bne 1b
- sta %g0, [%o0 + %o4] ASI_M_FLUSH_USER
-hypersparc_flush_cache_mm_out:
- retl
- nop
-
- /* The things we do for performance... */
-hypersparc_flush_cache_range:
- ld [%o0 + VMA_VM_MM], %o0
-#ifndef CONFIG_SMP
- ld [%o0 + AOFF_mm_context], %g1
- cmp %g1, -1
- be hypersparc_flush_cache_range_out
-#endif
- WINDOW_FLUSH(%g4, %g5)
-
- sethi %hi(vac_line_size), %g1
- ld [%g1 + %lo(vac_line_size)], %o4
- sethi %hi(vac_cache_size), %g2
- ld [%g2 + %lo(vac_cache_size)], %o3
-
- /* Here comes the fun part... */
- add %o2, (PAGE_SIZE - 1), %o2
- andn %o1, (PAGE_SIZE - 1), %o1
- add %o4, %o4, %o5
- andn %o2, (PAGE_SIZE - 1), %o2
- add %o4, %o5, %g1
- sub %o2, %o1, %g4
- add %o4, %g1, %g2
- sll %o3, 2, %g5
- add %o4, %g2, %g3
- cmp %g4, %g5
- add %o4, %g3, %g4
- blu 0f
- add %o4, %g4, %g5
- add %o4, %g5, %g7
-
- /* Flush entire user space, believe it or not this is quicker
- * than page at a time flushings for range > (cache_size<<2).
- */
-1:
- subcc %o3, %g7, %o3
- sta %g0, [%o3 + %g0] ASI_M_FLUSH_USER
- sta %g0, [%o3 + %o4] ASI_M_FLUSH_USER
- sta %g0, [%o3 + %o5] ASI_M_FLUSH_USER
- sta %g0, [%o3 + %g1] ASI_M_FLUSH_USER
- sta %g0, [%o3 + %g2] ASI_M_FLUSH_USER
- sta %g0, [%o3 + %g3] ASI_M_FLUSH_USER
- sta %g0, [%o3 + %g4] ASI_M_FLUSH_USER
- bne 1b
- sta %g0, [%o3 + %g5] ASI_M_FLUSH_USER
- retl
- nop
-
- /* Below our threshold, flush one page at a time. */
-0:
- ld [%o0 + AOFF_mm_context], %o0
- mov SRMMU_CTX_REG, %g7
- lda [%g7] ASI_M_MMUREGS, %o3
- sta %o0, [%g7] ASI_M_MMUREGS
- add %o2, -PAGE_SIZE, %o0
-1:
- or %o0, 0x400, %g7
- lda [%g7] ASI_M_FLUSH_PROBE, %g7
- orcc %g7, 0, %g0
- be,a 3f
- mov %o0, %o2
- add %o4, %g5, %g7
-2:
- sub %o2, %g7, %o2
- sta %g0, [%o2 + %g0] ASI_M_FLUSH_PAGE
- sta %g0, [%o2 + %o4] ASI_M_FLUSH_PAGE
- sta %g0, [%o2 + %o5] ASI_M_FLUSH_PAGE
- sta %g0, [%o2 + %g1] ASI_M_FLUSH_PAGE
- sta %g0, [%o2 + %g2] ASI_M_FLUSH_PAGE
- sta %g0, [%o2 + %g3] ASI_M_FLUSH_PAGE
- andcc %o2, 0xffc, %g0
- sta %g0, [%o2 + %g4] ASI_M_FLUSH_PAGE
- bne 2b
- sta %g0, [%o2 + %g5] ASI_M_FLUSH_PAGE
-3:
- cmp %o2, %o1
- bne 1b
- add %o2, -PAGE_SIZE, %o0
- mov SRMMU_FAULT_STATUS, %g5
- lda [%g5] ASI_M_MMUREGS, %g0
- mov SRMMU_CTX_REG, %g7
- sta %o3, [%g7] ASI_M_MMUREGS
-hypersparc_flush_cache_range_out:
- retl
- nop
-
- /* HyperSparc requires a valid mapping where we are about to flush
- * in order to check for a physical tag match during the flush.
- */
- /* Verified, my ass... */
-hypersparc_flush_cache_page:
- ld [%o0 + VMA_VM_MM], %o0
- ld [%o0 + AOFF_mm_context], %g2
-#ifndef CONFIG_SMP
- cmp %g2, -1
- be hypersparc_flush_cache_page_out
-#endif
- WINDOW_FLUSH(%g4, %g5)
-
- sethi %hi(vac_line_size), %g1
- ld [%g1 + %lo(vac_line_size)], %o4
- mov SRMMU_CTX_REG, %o3
- andn %o1, (PAGE_SIZE - 1), %o1
- lda [%o3] ASI_M_MMUREGS, %o2
- sta %g2, [%o3] ASI_M_MMUREGS
- or %o1, 0x400, %o5
- lda [%o5] ASI_M_FLUSH_PROBE, %g1
- orcc %g0, %g1, %g0
- be 2f
- add %o4, %o4, %o5
- sub %o1, -PAGE_SIZE, %o1
- add %o4, %o5, %g1
- add %o4, %g1, %g2
- add %o4, %g2, %g3
- add %o4, %g3, %g4
- add %o4, %g4, %g5
- add %o4, %g5, %g7
-
- /* BLAMMO! */
-1:
- sub %o1, %g7, %o1
- sta %g0, [%o1 + %g0] ASI_M_FLUSH_PAGE
- sta %g0, [%o1 + %o4] ASI_M_FLUSH_PAGE
- sta %g0, [%o1 + %o5] ASI_M_FLUSH_PAGE
- sta %g0, [%o1 + %g1] ASI_M_FLUSH_PAGE
- sta %g0, [%o1 + %g2] ASI_M_FLUSH_PAGE
- sta %g0, [%o1 + %g3] ASI_M_FLUSH_PAGE
- andcc %o1, 0xffc, %g0
- sta %g0, [%o1 + %g4] ASI_M_FLUSH_PAGE
- bne 1b
- sta %g0, [%o1 + %g5] ASI_M_FLUSH_PAGE
-2:
- mov SRMMU_FAULT_STATUS, %g7
- mov SRMMU_CTX_REG, %g4
- lda [%g7] ASI_M_MMUREGS, %g0
- sta %o2, [%g4] ASI_M_MMUREGS
-hypersparc_flush_cache_page_out:
- retl
- nop
-
-hypersparc_flush_sig_insns:
- flush %o1
- retl
- flush %o1 + 4
-
- /* HyperSparc is copy-back. */
-hypersparc_flush_page_to_ram:
- sethi %hi(vac_line_size), %g1
- ld [%g1 + %lo(vac_line_size)], %o4
- andn %o0, (PAGE_SIZE - 1), %o0
- add %o4, %o4, %o5
- or %o0, 0x400, %g7
- lda [%g7] ASI_M_FLUSH_PROBE, %g5
- add %o4, %o5, %g1
- orcc %g5, 0, %g0
- be 2f
- add %o4, %g1, %g2
- add %o4, %g2, %g3
- sub %o0, -PAGE_SIZE, %o0
- add %o4, %g3, %g4
- add %o4, %g4, %g5
- add %o4, %g5, %g7
-
- /* BLAMMO! */
-1:
- sub %o0, %g7, %o0
- sta %g0, [%o0 + %g0] ASI_M_FLUSH_PAGE
- sta %g0, [%o0 + %o4] ASI_M_FLUSH_PAGE
- sta %g0, [%o0 + %o5] ASI_M_FLUSH_PAGE
- sta %g0, [%o0 + %g1] ASI_M_FLUSH_PAGE
- sta %g0, [%o0 + %g2] ASI_M_FLUSH_PAGE
- sta %g0, [%o0 + %g3] ASI_M_FLUSH_PAGE
- andcc %o0, 0xffc, %g0
- sta %g0, [%o0 + %g4] ASI_M_FLUSH_PAGE
- bne 1b
- sta %g0, [%o0 + %g5] ASI_M_FLUSH_PAGE
-2:
- mov SRMMU_FAULT_STATUS, %g1
- retl
- lda [%g1] ASI_M_MMUREGS, %g0
-
- /* HyperSparc is IO cache coherent. */
-hypersparc_flush_page_for_dma:
- retl
- nop
-
- /* It was noted that at boot time a TLB flush all in a delay slot
- * can deliver an illegal instruction to the processor if the timing
- * is just right...
- */
-hypersparc_flush_tlb_all:
- mov 0x400, %g1
- sta %g0, [%g1] ASI_M_FLUSH_PROBE
- retl
- nop
-
-hypersparc_flush_tlb_mm:
- mov SRMMU_CTX_REG, %g1
- ld [%o0 + AOFF_mm_context], %o1
- lda [%g1] ASI_M_MMUREGS, %g5
-#ifndef CONFIG_SMP
- cmp %o1, -1
- be hypersparc_flush_tlb_mm_out
-#endif
- mov 0x300, %g2
- sta %o1, [%g1] ASI_M_MMUREGS
- sta %g0, [%g2] ASI_M_FLUSH_PROBE
-hypersparc_flush_tlb_mm_out:
- retl
- sta %g5, [%g1] ASI_M_MMUREGS
-
-hypersparc_flush_tlb_range:
- ld [%o0 + VMA_VM_MM], %o0
- mov SRMMU_CTX_REG, %g1
- ld [%o0 + AOFF_mm_context], %o3
- lda [%g1] ASI_M_MMUREGS, %g5
-#ifndef CONFIG_SMP
- cmp %o3, -1
- be hypersparc_flush_tlb_range_out
-#endif
- sethi %hi(~((1 << PGDIR_SHIFT) - 1)), %o4
- sta %o3, [%g1] ASI_M_MMUREGS
- and %o1, %o4, %o1
- add %o1, 0x200, %o1
- sta %g0, [%o1] ASI_M_FLUSH_PROBE
-1:
- sub %o1, %o4, %o1
- cmp %o1, %o2
- blu,a 1b
- sta %g0, [%o1] ASI_M_FLUSH_PROBE
-hypersparc_flush_tlb_range_out:
- retl
- sta %g5, [%g1] ASI_M_MMUREGS
-
-hypersparc_flush_tlb_page:
- ld [%o0 + VMA_VM_MM], %o0
- mov SRMMU_CTX_REG, %g1
- ld [%o0 + AOFF_mm_context], %o3
- andn %o1, (PAGE_SIZE - 1), %o1
-#ifndef CONFIG_SMP
- cmp %o3, -1
- be hypersparc_flush_tlb_page_out
-#endif
- lda [%g1] ASI_M_MMUREGS, %g5
- sta %o3, [%g1] ASI_M_MMUREGS
- sta %g0, [%o1] ASI_M_FLUSH_PROBE
-hypersparc_flush_tlb_page_out:
- retl
- sta %g5, [%g1] ASI_M_MMUREGS
-
- __INIT
-
- /* High speed page clear/copy. */
-hypersparc_bzero_1page:
-/* NOTE: This routine has to be shorter than 40insns --jj */
- clr %g1
- mov 32, %g2
- mov 64, %g3
- mov 96, %g4
- mov 128, %g5
- mov 160, %g7
- mov 192, %o2
- mov 224, %o3
- mov 16, %o1
-1:
- stda %g0, [%o0 + %g0] ASI_M_BFILL
- stda %g0, [%o0 + %g2] ASI_M_BFILL
- stda %g0, [%o0 + %g3] ASI_M_BFILL
- stda %g0, [%o0 + %g4] ASI_M_BFILL
- stda %g0, [%o0 + %g5] ASI_M_BFILL
- stda %g0, [%o0 + %g7] ASI_M_BFILL
- stda %g0, [%o0 + %o2] ASI_M_BFILL
- stda %g0, [%o0 + %o3] ASI_M_BFILL
- subcc %o1, 1, %o1
- bne 1b
- add %o0, 256, %o0
-
- retl
- nop
-
-hypersparc_copy_1page:
-/* NOTE: This routine has to be shorter than 70insns --jj */
- sub %o1, %o0, %o2 ! difference
- mov 16, %g1
-1:
- sta %o0, [%o0 + %o2] ASI_M_BCOPY
- add %o0, 32, %o0
- sta %o0, [%o0 + %o2] ASI_M_BCOPY
- add %o0, 32, %o0
- sta %o0, [%o0 + %o2] ASI_M_BCOPY
- add %o0, 32, %o0
- sta %o0, [%o0 + %o2] ASI_M_BCOPY
- add %o0, 32, %o0
- sta %o0, [%o0 + %o2] ASI_M_BCOPY
- add %o0, 32, %o0
- sta %o0, [%o0 + %o2] ASI_M_BCOPY
- add %o0, 32, %o0
- sta %o0, [%o0 + %o2] ASI_M_BCOPY
- add %o0, 32, %o0
- sta %o0, [%o0 + %o2] ASI_M_BCOPY
- subcc %g1, 1, %g1
- bne 1b
- add %o0, 32, %o0
-
- retl
- nop
-
- .globl hypersparc_setup_blockops
-hypersparc_setup_blockops:
- sethi %hi(bzero_1page), %o0
- or %o0, %lo(bzero_1page), %o0
- sethi %hi(hypersparc_bzero_1page), %o1
- or %o1, %lo(hypersparc_bzero_1page), %o1
- sethi %hi(hypersparc_copy_1page), %o2
- or %o2, %lo(hypersparc_copy_1page), %o2
- ld [%o1], %o4
-1:
- add %o1, 4, %o1
- st %o4, [%o0]
- add %o0, 4, %o0
- cmp %o1, %o2
- bne 1b
- ld [%o1], %o4
- sethi %hi(__copy_1page), %o0
- or %o0, %lo(__copy_1page), %o0
- sethi %hi(hypersparc_setup_blockops), %o2
- or %o2, %lo(hypersparc_setup_blockops), %o2
- ld [%o1], %o4
-1:
- add %o1, 4, %o1
- st %o4, [%o0]
- add %o0, 4, %o0
- cmp %o1, %o2
- bne 1b
- ld [%o1], %o4
- sta %g0, [%g0] ASI_M_FLUSH_IWHOLE
- retl
- nop
diff --git a/arch/sparc/mm/io-unit.c b/arch/sparc/mm/io-unit.c
index 49ded623995f..779bc9384989 100644
--- a/arch/sparc/mm/io-unit.c
+++ b/arch/sparc/mm/io-unit.c
@@ -17,7 +17,6 @@
#include <asm/io.h>
#include <asm/io-unit.h>
-#include <asm/mxcc.h>
#include <asm/cacheflush.h>
#include <asm/tlbflush.h>
#include <asm/dma.h>
diff --git a/arch/sparc/mm/iommu.c b/arch/sparc/mm/iommu.c
index 125a3e96e3d2..1df742119ac5 100644
--- a/arch/sparc/mm/iommu.c
+++ b/arch/sparc/mm/iommu.c
@@ -17,7 +17,6 @@
#include <linux/of_device.h>
#include <asm/io.h>
-#include <asm/mxcc.h>
#include <asm/cacheflush.h>
#include <asm/tlbflush.h>
#include <asm/bitext.h>
@@ -36,11 +35,6 @@
#define IOMMU_NPTES (IOMMU_WINSIZE/PAGE_SIZE) /* 64K PTEs, 256KB */
#define IOMMU_ORDER 6 /* 4096 * (1<<6) */
-static int viking_flush;
-/* viking.S */
-extern void viking_flush_page(unsigned long page);
-extern void viking_mxcc_flush_page(unsigned long page);
-
/*
* Values precomputed according to CPU type.
*/
@@ -155,21 +149,9 @@ static void iommu_flush_iotlb(iopte_t *iopte, unsigned int niopte)
start = (unsigned long)iopte;
end = PAGE_ALIGN(start + niopte*sizeof(iopte_t));
start &= PAGE_MASK;
- if (viking_mxcc_present) {
- while(start < end) {
- viking_mxcc_flush_page(start);
- start += PAGE_SIZE;
- }
- } else if (viking_flush) {
- while(start < end) {
- viking_flush_page(start);
- start += PAGE_SIZE;
- }
- } else {
- while(start < end) {
- __flush_page_to_ram(start);
- start += PAGE_SIZE;
- }
+ while(start < end) {
+ __flush_page_to_ram(start);
+ start += PAGE_SIZE;
}
}
@@ -343,12 +325,7 @@ static void *sbus_iommu_alloc(struct device *dev, size_t len,
pmd_t *pmdp;
pte_t *ptep;
- if (viking_mxcc_present)
- viking_mxcc_flush_page(page);
- else if (viking_flush)
- viking_flush_page(page);
- else
- __flush_page_to_ram(page);
+ __flush_page_to_ram(page);
pmdp = pmd_off_k(addr);
ptep = pte_offset_map(pmdp, addr);
diff --git a/arch/sparc/mm/mm_32.h b/arch/sparc/mm/mm_32.h
index ce750a99eea9..759d6f7de798 100644
--- a/arch/sparc/mm/mm_32.h
+++ b/arch/sparc/mm/mm_32.h
@@ -11,7 +11,6 @@ void window_ret_fault(struct pt_regs *regs);
/* srmmu.c */
extern char *srmmu_name;
-extern int viking_mxcc_present;
extern int flush_page_for_dma_global;
extern void (*poke_srmmu)(void);
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index 802529aa02b9..d96dcc46387c 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -40,13 +40,7 @@
#include <asm/io.h>
/* Now the cpu specific definitions. */
-#include <asm/turbosparc.h>
-#include <asm/tsunami.h>
-#include <asm/viking.h>
-#include <asm/swift.h>
#include <asm/leon.h>
-#include <asm/mxcc.h>
-#include <asm/ross.h>
#include "mm_32.h"
@@ -65,12 +59,6 @@ EXPORT_SYMBOL(sparc32_cachetlb_ops);
#ifdef CONFIG_SMP
const struct sparc32_cachetlb_ops *local_ops;
-
-#define FLUSH_BEGIN(mm)
-#define FLUSH_END
-#else
-#define FLUSH_BEGIN(mm) if ((mm)->context != NO_CONTEXT) {
-#define FLUSH_END }
#endif
int flush_page_for_dma_global = 1;
@@ -80,11 +68,8 @@ char *srmmu_name;
ctxd_t *srmmu_ctx_table_phys;
static ctxd_t *srmmu_context_table;
-int viking_mxcc_present;
static DEFINE_SPINLOCK(srmmu_context_spinlock);
-static int is_hypersparc;
-
static int srmmu_cache_pagetables;
/* these will be initialized in srmmu_nocache_calcsize() */
@@ -112,25 +97,6 @@ static inline void srmmu_ctxd_set(ctxd_t *ctxp, pgd_t *pgdp)
set_pte((pte_t *)ctxp, pte);
}
-/*
- * Locations of MSI Registers.
- */
-#define MSI_MBUS_ARBEN 0xe0001008 /* MBus Arbiter Enable register */
-
-/*
- * Useful bits in the MSI Registers.
- */
-#define MSI_ASYNC_MODE 0x80000000 /* Operate the MSI asynchronously */
-
-static void msi_set_sync(void)
-{
- __asm__ __volatile__ ("lda [%0] %1, %%g3\n\t"
- "andn %%g3, %2, %%g3\n\t"
- "sta %%g3, [%0] %1\n\t" : :
- "r" (MSI_MBUS_ARBEN),
- "i" (ASI_M_CTL), "r" (MSI_ASYNC_MODE) : "g3");
-}
-
void pmd_set(pmd_t *pmdp, pte_t *ptep)
{
unsigned long ptp = __nocache_pa(ptep) >> 4;
@@ -477,11 +443,7 @@ void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm,
srmmu_ctxd_set(&srmmu_context_table[mm->context], mm->pgd);
}
- if (sparc_cpu_model == sparc_leon)
- leon_switch_mm();
-
- if (is_hypersparc)
- hyper_flush_whole_icache();
+ leon_switch_mm();
srmmu_set_context(mm->context);
}
@@ -556,110 +518,6 @@ void srmmu_unmapiorange(unsigned long virt_addr, unsigned int len)
flush_tlb_all();
}
-/* tsunami.S */
-extern void tsunami_flush_cache_all(void);
-extern void tsunami_flush_cache_mm(struct mm_struct *mm);
-extern void tsunami_flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end);
-extern void tsunami_flush_cache_page(struct vm_area_struct *vma, unsigned long page);
-extern void tsunami_flush_page_to_ram(unsigned long page);
-extern void tsunami_flush_page_for_dma(unsigned long page);
-extern void tsunami_flush_sig_insns(struct mm_struct *mm, unsigned long insn_addr);
-extern void tsunami_flush_tlb_all(void);
-extern void tsunami_flush_tlb_mm(struct mm_struct *mm);
-extern void tsunami_flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end);
-extern void tsunami_flush_tlb_page(struct vm_area_struct *vma, unsigned long page);
-extern void tsunami_setup_blockops(void);
-
-/* swift.S */
-extern void swift_flush_cache_all(void);
-extern void swift_flush_cache_mm(struct mm_struct *mm);
-extern void swift_flush_cache_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end);
-extern void swift_flush_cache_page(struct vm_area_struct *vma, unsigned long page);
-extern void swift_flush_page_to_ram(unsigned long page);
-extern void swift_flush_page_for_dma(unsigned long page);
-extern void swift_flush_sig_insns(struct mm_struct *mm, unsigned long insn_addr);
-extern void swift_flush_tlb_all(void);
-extern void swift_flush_tlb_mm(struct mm_struct *mm);
-extern void swift_flush_tlb_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end);
-extern void swift_flush_tlb_page(struct vm_area_struct *vma, unsigned long page);
-
-#if 0 /* P3: deadwood to debug precise flushes on Swift. */
-void swift_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
-{
- int cctx, ctx1;
-
- page &= PAGE_MASK;
- if ((ctx1 = vma->vm_mm->context) != -1) {
- cctx = srmmu_get_context();
-/* Is context # ever different from current context? P3 */
- if (cctx != ctx1) {
- printk("flush ctx %02x curr %02x\n", ctx1, cctx);
- srmmu_set_context(ctx1);
- swift_flush_page(page);
- __asm__ __volatile__("sta %%g0, [%0] %1\n\t" : :
- "r" (page), "i" (ASI_M_FLUSH_PROBE));
- srmmu_set_context(cctx);
- } else {
- /* Rm. prot. bits from virt. c. */
- /* swift_flush_cache_all(); */
- /* swift_flush_cache_page(vma, page); */
- swift_flush_page(page);
-
- __asm__ __volatile__("sta %%g0, [%0] %1\n\t" : :
- "r" (page), "i" (ASI_M_FLUSH_PROBE));
- /* same as above: srmmu_flush_tlb_page() */
- }
- }
-}
-#endif
-
-/*
- * The following are all MBUS based SRMMU modules, and therefore could
- * be found in a multiprocessor configuration. On the whole, these
- * chips seems to be much more touchy about DVMA and page tables
- * with respect to cache coherency.
- */
-
-/* viking.S */
-extern void viking_flush_cache_all(void);
-extern void viking_flush_cache_mm(struct mm_struct *mm);
-extern void viking_flush_cache_range(struct vm_area_struct *vma, unsigned long start,
- unsigned long end);
-extern void viking_flush_cache_page(struct vm_area_struct *vma, unsigned long page);
-extern void viking_flush_page_to_ram(unsigned long page);
-extern void viking_flush_page_for_dma(unsigned long page);
-extern void viking_flush_sig_insns(struct mm_struct *mm, unsigned long addr);
-extern void viking_flush_page(unsigned long page);
-extern void viking_mxcc_flush_page(unsigned long page);
-extern void viking_flush_tlb_all(void);
-extern void viking_flush_tlb_mm(struct mm_struct *mm);
-extern void viking_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
- unsigned long end);
-extern void viking_flush_tlb_page(struct vm_area_struct *vma,
- unsigned long page);
-extern void sun4dsmp_flush_tlb_all(void);
-extern void sun4dsmp_flush_tlb_mm(struct mm_struct *mm);
-extern void sun4dsmp_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
- unsigned long end);
-extern void sun4dsmp_flush_tlb_page(struct vm_area_struct *vma,
- unsigned long page);
-
-/* hypersparc.S */
-extern void hypersparc_flush_cache_all(void);
-extern void hypersparc_flush_cache_mm(struct mm_struct *mm);
-extern void hypersparc_flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end);
-extern void hypersparc_flush_cache_page(struct vm_area_struct *vma, unsigned long page);
-extern void hypersparc_flush_page_to_ram(unsigned long page);
-extern void hypersparc_flush_page_for_dma(unsigned long page);
-extern void hypersparc_flush_sig_insns(struct mm_struct *mm, unsigned long insn_addr);
-extern void hypersparc_flush_tlb_all(void);
-extern void hypersparc_flush_tlb_mm(struct mm_struct *mm);
-extern void hypersparc_flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end);
-extern void hypersparc_flush_tlb_page(struct vm_area_struct *vma, unsigned long page);
-extern void hypersparc_setup_blockops(void);
-
/*
* NOTE: All of this startup code assumes the low 16mb (approx.) of
* kernel mappings are done with one single contiguous chunk of
@@ -746,18 +604,7 @@ static void __init srmmu_allocate_ptable_skeleton(unsigned long start,
/* These flush types are not available on all chips... */
static inline unsigned long srmmu_probe(unsigned long vaddr)
{
- unsigned long retval;
-
- if (sparc_cpu_model != sparc_leon) {
-
- vaddr &= PAGE_MASK;
- __asm__ __volatile__("lda [%1] %2, %0\n\t" :
- "=r" (retval) :
- "r" (vaddr | 0x400), "i" (ASI_M_FLUSH_PROBE));
- } else {
- retval = leon_swprobe(vaddr, NULL);
- }
- return retval;
+ return leon_swprobe(vaddr, NULL);
}
/*
@@ -903,20 +750,16 @@ void __init srmmu_paging_init(void)
init_mm.context = (unsigned long) NO_CONTEXT;
sparc_iomap.start = SUN4M_IOBASE_VADDR; /* 16MB of IOSPACE on all sun4m's. */
- if (sparc_cpu_model == sun4d)
- num_contexts = 65536; /* We know it is Viking */
- else {
- /* Find the number of contexts on the srmmu. */
- cpunode = prom_getchild(prom_root_node);
- num_contexts = 0;
- while (cpunode != 0) {
- prom_getstring(cpunode, "device_type", node_str, sizeof(node_str));
- if (!strcmp(node_str, "cpu")) {
- num_contexts = prom_getintdefault(cpunode, "mmu-nctx", 0x8);
- break;
- }
- cpunode = prom_getsibling(cpunode);
+ /* Find the number of contexts on the srmmu. */
+ cpunode = prom_getchild(prom_root_node);
+ num_contexts = 0;
+ while (cpunode != 0) {
+ prom_getstring(cpunode, "device_type", node_str, sizeof(node_str));
+ if (!strcmp(node_str, "cpu")) {
+ num_contexts = prom_getintdefault(cpunode, "mmu-nctx", 0x8);
+ break;
}
+ cpunode = prom_getsibling(cpunode);
}
if (!num_contexts) {
@@ -1013,577 +856,6 @@ void destroy_context(struct mm_struct *mm)
}
}
-/* Init various srmmu chip types. */
-static void __init srmmu_is_bad(void)
-{
- prom_printf("Could not determine SRMMU chip type.\n");
- prom_halt();
-}
-
-static void __init init_vac_layout(void)
-{
- phandle nd;
- int cache_lines;
- char node_str[128];
-#ifdef CONFIG_SMP
- int cpu = 0;
- unsigned long max_size = 0;
- unsigned long min_line_size = 0x10000000;
-#endif
-
- nd = prom_getchild(prom_root_node);
- while ((nd = prom_getsibling(nd)) != 0) {
- prom_getstring(nd, "device_type", node_str, sizeof(node_str));
- if (!strcmp(node_str, "cpu")) {
- vac_line_size = prom_getint(nd, "cache-line-size");
- if (vac_line_size == -1) {
- prom_printf("can't determine cache-line-size, halting.\n");
- prom_halt();
- }
- cache_lines = prom_getint(nd, "cache-nlines");
- if (cache_lines == -1) {
- prom_printf("can't determine cache-nlines, halting.\n");
- prom_halt();
- }
-
- vac_cache_size = cache_lines * vac_line_size;
-#ifdef CONFIG_SMP
- if (vac_cache_size > max_size)
- max_size = vac_cache_size;
- if (vac_line_size < min_line_size)
- min_line_size = vac_line_size;
- //FIXME: cpus not contiguous!!
- cpu++;
- if (cpu >= nr_cpu_ids || !cpu_online(cpu))
- break;
-#else
- break;
-#endif
- }
- }
- if (nd == 0) {
- prom_printf("No CPU nodes found, halting.\n");
- prom_halt();
- }
-#ifdef CONFIG_SMP
- vac_cache_size = max_size;
- vac_line_size = min_line_size;
-#endif
- printk("SRMMU: Using VAC size of %d bytes, line size %d bytes.\n",
- (int)vac_cache_size, (int)vac_line_size);
-}
-
-static void poke_hypersparc(void)
-{
- volatile unsigned long clear;
- unsigned long mreg = srmmu_get_mmureg();
-
- hyper_flush_unconditional_combined();
-
- mreg &= ~(HYPERSPARC_CWENABLE);
- mreg |= (HYPERSPARC_CENABLE | HYPERSPARC_WBENABLE);
- mreg |= (HYPERSPARC_CMODE);
-
- srmmu_set_mmureg(mreg);
-
-#if 0 /* XXX I think this is bad news... -DaveM */
- hyper_clear_all_tags();
-#endif
-
- put_ross_icr(HYPERSPARC_ICCR_FTD | HYPERSPARC_ICCR_ICE);
- hyper_flush_whole_icache();
- clear = srmmu_get_faddr();
- clear = srmmu_get_fstatus();
-}
-
-static const struct sparc32_cachetlb_ops hypersparc_ops = {
- .cache_all = hypersparc_flush_cache_all,
- .cache_mm = hypersparc_flush_cache_mm,
- .cache_page = hypersparc_flush_cache_page,
- .cache_range = hypersparc_flush_cache_range,
- .tlb_all = hypersparc_flush_tlb_all,
- .tlb_mm = hypersparc_flush_tlb_mm,
- .tlb_page = hypersparc_flush_tlb_page,
- .tlb_range = hypersparc_flush_tlb_range,
- .page_to_ram = hypersparc_flush_page_to_ram,
- .sig_insns = hypersparc_flush_sig_insns,
- .page_for_dma = hypersparc_flush_page_for_dma,
-};
-
-static void __init init_hypersparc(void)
-{
- srmmu_name = "ROSS HyperSparc";
-
- init_vac_layout();
-
- is_hypersparc = 1;
- sparc32_cachetlb_ops = &hypersparc_ops;
-
- poke_srmmu = poke_hypersparc;
-
- hypersparc_setup_blockops();
-}
-
-static void poke_swift(void)
-{
- unsigned long mreg;
-
- /* Clear any crap from the cache or else... */
- swift_flush_cache_all();
-
- /* Enable I & D caches */
- mreg = srmmu_get_mmureg();
- mreg |= (SWIFT_IE | SWIFT_DE);
- /*
- * The Swift branch folding logic is completely broken. At
- * trap time, if things are just right, if can mistakenly
- * think that a trap is coming from kernel mode when in fact
- * it is coming from user mode (it mis-executes the branch in
- * the trap code). So you see things like crashme completely
- * hosing your machine which is completely unacceptable. Turn
- * this shit off... nice job Fujitsu.
- */
- mreg &= ~(SWIFT_BF);
- srmmu_set_mmureg(mreg);
-}
-
-static const struct sparc32_cachetlb_ops swift_ops = {
- .cache_all = swift_flush_cache_all,
- .cache_mm = swift_flush_cache_mm,
- .cache_page = swift_flush_cache_page,
- .cache_range = swift_flush_cache_range,
- .tlb_all = swift_flush_tlb_all,
- .tlb_mm = swift_flush_tlb_mm,
- .tlb_page = swift_flush_tlb_page,
- .tlb_range = swift_flush_tlb_range,
- .page_to_ram = swift_flush_page_to_ram,
- .sig_insns = swift_flush_sig_insns,
- .page_for_dma = swift_flush_page_for_dma,
-};
-
-#define SWIFT_MASKID_ADDR 0x10003018
-static void __init init_swift(void)
-{
- unsigned long swift_rev;
-
- __asm__ __volatile__("lda [%1] %2, %0\n\t"
- "srl %0, 0x18, %0\n\t" :
- "=r" (swift_rev) :
- "r" (SWIFT_MASKID_ADDR), "i" (ASI_M_BYPASS));
- srmmu_name = "Fujitsu Swift";
-
- sparc32_cachetlb_ops = &swift_ops;
- flush_page_for_dma_global = 0;
-
- /*
- * Are you now convinced that the Swift is one of the
- * biggest VLSI abortions of all time? Bravo Fujitsu!
- * Fujitsu, the !#?!%$'d up processor people. I bet if
- * you examined the microcode of the Swift you'd find
- * XXX's all over the place.
- */
- poke_srmmu = poke_swift;
-}
-
-static void turbosparc_flush_cache_all(void)
-{
- flush_user_windows();
- turbosparc_idflash_clear();
-}
-
-static void turbosparc_flush_cache_mm(struct mm_struct *mm)
-{
- FLUSH_BEGIN(mm)
- flush_user_windows();
- turbosparc_idflash_clear();
- FLUSH_END
-}
-
-static void turbosparc_flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end)
-{
- FLUSH_BEGIN(vma->vm_mm)
- flush_user_windows();
- turbosparc_idflash_clear();
- FLUSH_END
-}
-
-static void turbosparc_flush_cache_page(struct vm_area_struct *vma, unsigned long page)
-{
- FLUSH_BEGIN(vma->vm_mm)
- flush_user_windows();
- if (vma->vm_flags & VM_EXEC)
- turbosparc_flush_icache();
- turbosparc_flush_dcache();
- FLUSH_END
-}
-
-/* TurboSparc is copy-back, if we turn it on, but this does not work. */
-static void turbosparc_flush_page_to_ram(unsigned long page)
-{
-#ifdef TURBOSPARC_WRITEBACK
- volatile unsigned long clear;
-
- if (srmmu_probe(page))
- turbosparc_flush_page_cache(page);
- clear = srmmu_get_fstatus();
-#endif
-}
-
-static void turbosparc_flush_sig_insns(struct mm_struct *mm, unsigned long insn_addr)
-{
-}
-
-static void turbosparc_flush_page_for_dma(unsigned long page)
-{
- turbosparc_flush_dcache();
-}
-
-static void turbosparc_flush_tlb_all(void)
-{
- srmmu_flush_whole_tlb();
-}
-
-static void turbosparc_flush_tlb_mm(struct mm_struct *mm)
-{
- FLUSH_BEGIN(mm)
- srmmu_flush_whole_tlb();
- FLUSH_END
-}
-
-static void turbosparc_flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end)
-{
- FLUSH_BEGIN(vma->vm_mm)
- srmmu_flush_whole_tlb();
- FLUSH_END
-}
-
-static void turbosparc_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
-{
- FLUSH_BEGIN(vma->vm_mm)
- srmmu_flush_whole_tlb();
- FLUSH_END
-}
-
-
-static void poke_turbosparc(void)
-{
- unsigned long mreg = srmmu_get_mmureg();
- unsigned long ccreg;
-
- /* Clear any crap from the cache or else... */
- turbosparc_flush_cache_all();
- /* Temporarily disable I & D caches */
- mreg &= ~(TURBOSPARC_ICENABLE | TURBOSPARC_DCENABLE);
- mreg &= ~(TURBOSPARC_PCENABLE); /* Don't check parity */
- srmmu_set_mmureg(mreg);
-
- ccreg = turbosparc_get_ccreg();
-
-#ifdef TURBOSPARC_WRITEBACK
- ccreg |= (TURBOSPARC_SNENABLE); /* Do DVMA snooping in Dcache */
- ccreg &= ~(TURBOSPARC_uS2 | TURBOSPARC_WTENABLE);
- /* Write-back D-cache, emulate VLSI
- * abortion number three, not number one */
-#else
- /* For now let's play safe, optimize later */
- ccreg |= (TURBOSPARC_SNENABLE | TURBOSPARC_WTENABLE);
- /* Do DVMA snooping in Dcache, Write-thru D-cache */
- ccreg &= ~(TURBOSPARC_uS2);
- /* Emulate VLSI abortion number three, not number one */
-#endif
-
- switch (ccreg & 7) {
- case 0: /* No SE cache */
- case 7: /* Test mode */
- break;
- default:
- ccreg |= (TURBOSPARC_SCENABLE);
- }
- turbosparc_set_ccreg(ccreg);
-
- mreg |= (TURBOSPARC_ICENABLE | TURBOSPARC_DCENABLE); /* I & D caches on */
- mreg |= (TURBOSPARC_ICSNOOP); /* Icache snooping on */
- srmmu_set_mmureg(mreg);
-}
-
-static const struct sparc32_cachetlb_ops turbosparc_ops = {
- .cache_all = turbosparc_flush_cache_all,
- .cache_mm = turbosparc_flush_cache_mm,
- .cache_page = turbosparc_flush_cache_page,
- .cache_range = turbosparc_flush_cache_range,
- .tlb_all = turbosparc_flush_tlb_all,
- .tlb_mm = turbosparc_flush_tlb_mm,
- .tlb_page = turbosparc_flush_tlb_page,
- .tlb_range = turbosparc_flush_tlb_range,
- .page_to_ram = turbosparc_flush_page_to_ram,
- .sig_insns = turbosparc_flush_sig_insns,
- .page_for_dma = turbosparc_flush_page_for_dma,
-};
-
-static void __init init_turbosparc(void)
-{
- srmmu_name = "Fujitsu TurboSparc";
- sparc32_cachetlb_ops = &turbosparc_ops;
- poke_srmmu = poke_turbosparc;
-}
-
-static void poke_tsunami(void)
-{
- unsigned long mreg = srmmu_get_mmureg();
-
- tsunami_flush_icache();
- tsunami_flush_dcache();
- mreg &= ~TSUNAMI_ITD;
- mreg |= (TSUNAMI_IENAB | TSUNAMI_DENAB);
- srmmu_set_mmureg(mreg);
-}
-
-static const struct sparc32_cachetlb_ops tsunami_ops = {
- .cache_all = tsunami_flush_cache_all,
- .cache_mm = tsunami_flush_cache_mm,
- .cache_page = tsunami_flush_cache_page,
- .cache_range = tsunami_flush_cache_range,
- .tlb_all = tsunami_flush_tlb_all,
- .tlb_mm = tsunami_flush_tlb_mm,
- .tlb_page = tsunami_flush_tlb_page,
- .tlb_range = tsunami_flush_tlb_range,
- .page_to_ram = tsunami_flush_page_to_ram,
- .sig_insns = tsunami_flush_sig_insns,
- .page_for_dma = tsunami_flush_page_for_dma,
-};
-
-static void __init init_tsunami(void)
-{
- /*
- * Tsunami's pretty sane, Sun and TI actually got it
- * somewhat right this time. Fujitsu should have
- * taken some lessons from them.
- */
-
- srmmu_name = "TI Tsunami";
- sparc32_cachetlb_ops = &tsunami_ops;
- poke_srmmu = poke_tsunami;
-
- tsunami_setup_blockops();
-}
-
-static void poke_viking(void)
-{
- unsigned long mreg = srmmu_get_mmureg();
- static int smp_catch;
-
- if (viking_mxcc_present) {
- unsigned long mxcc_control = mxcc_get_creg();
-
- mxcc_control |= (MXCC_CTL_ECE | MXCC_CTL_PRE | MXCC_CTL_MCE);
- mxcc_control &= ~(MXCC_CTL_RRC);
- mxcc_set_creg(mxcc_control);
-
- /*
- * We don't need memory parity checks.
- * XXX This is a mess, have to dig out later. ecd.
- viking_mxcc_turn_off_parity(&mreg, &mxcc_control);
- */
-
- /* We do cache ptables on MXCC. */
- mreg |= VIKING_TCENABLE;
- } else {
- unsigned long bpreg;
-
- mreg &= ~(VIKING_TCENABLE);
- if (smp_catch++) {
- /* Must disable mixed-cmd mode here for other cpu's. */
- bpreg = viking_get_bpreg();
- bpreg &= ~(VIKING_ACTION_MIX);
- viking_set_bpreg(bpreg);
-
- /* Just in case PROM does something funny. */
- msi_set_sync();
- }
- }
-
- mreg |= VIKING_SPENABLE;
- mreg |= (VIKING_ICENABLE | VIKING_DCENABLE);
- mreg |= VIKING_SBENABLE;
- mreg &= ~(VIKING_ACENABLE);
- srmmu_set_mmureg(mreg);
-}
-
-static struct sparc32_cachetlb_ops viking_ops __ro_after_init = {
- .cache_all = viking_flush_cache_all,
- .cache_mm = viking_flush_cache_mm,
- .cache_page = viking_flush_cache_page,
- .cache_range = viking_flush_cache_range,
- .tlb_all = viking_flush_tlb_all,
- .tlb_mm = viking_flush_tlb_mm,
- .tlb_page = viking_flush_tlb_page,
- .tlb_range = viking_flush_tlb_range,
- .page_to_ram = viking_flush_page_to_ram,
- .sig_insns = viking_flush_sig_insns,
- .page_for_dma = viking_flush_page_for_dma,
-};
-
-#ifdef CONFIG_SMP
-/* On sun4d the cpu broadcasts local TLB flushes, so we can just
- * perform the local TLB flush and all the other cpus will see it.
- * But, unfortunately, there is a bug in the sun4d XBUS backplane
- * that requires that we add some synchronization to these flushes.
- *
- * The bug is that the fifo which keeps track of all the pending TLB
- * broadcasts in the system is an entry or two too small, so if we
- * have too many going at once we'll overflow that fifo and lose a TLB
- * flush resulting in corruption.
- *
- * Our workaround is to take a global spinlock around the TLB flushes,
- * which guarentees we won't ever have too many pending. It's a big
- * hammer, but a semaphore like system to make sure we only have N TLB
- * flushes going at once will require SMP locking anyways so there's
- * no real value in trying any harder than this.
- */
-static struct sparc32_cachetlb_ops viking_sun4d_smp_ops __ro_after_init = {
- .cache_all = viking_flush_cache_all,
- .cache_mm = viking_flush_cache_mm,
- .cache_page = viking_flush_cache_page,
- .cache_range = viking_flush_cache_range,
- .tlb_all = sun4dsmp_flush_tlb_all,
- .tlb_mm = sun4dsmp_flush_tlb_mm,
- .tlb_page = sun4dsmp_flush_tlb_page,
- .tlb_range = sun4dsmp_flush_tlb_range,
- .page_to_ram = viking_flush_page_to_ram,
- .sig_insns = viking_flush_sig_insns,
- .page_for_dma = viking_flush_page_for_dma,
-};
-#endif
-
-static void __init init_viking(void)
-{
- unsigned long mreg = srmmu_get_mmureg();
-
- /* Ahhh, the viking. SRMMU VLSI abortion number two... */
- if (mreg & VIKING_MMODE) {
- srmmu_name = "TI Viking";
- viking_mxcc_present = 0;
- msi_set_sync();
-
- /*
- * We need this to make sure old viking takes no hits
- * on it's cache for dma snoops to workaround the
- * "load from non-cacheable memory" interrupt bug.
- * This is only necessary because of the new way in
- * which we use the IOMMU.
- */
- viking_ops.page_for_dma = viking_flush_page;
-#ifdef CONFIG_SMP
- viking_sun4d_smp_ops.page_for_dma = viking_flush_page;
-#endif
- flush_page_for_dma_global = 0;
- } else {
- srmmu_name = "TI Viking/MXCC";
- viking_mxcc_present = 1;
- srmmu_cache_pagetables = 1;
- }
-
- sparc32_cachetlb_ops = (const struct sparc32_cachetlb_ops *)
- &viking_ops;
-#ifdef CONFIG_SMP
- if (sparc_cpu_model == sun4d)
- sparc32_cachetlb_ops = (const struct sparc32_cachetlb_ops *)
- &viking_sun4d_smp_ops;
-#endif
-
- poke_srmmu = poke_viking;
-}
-
-/* Probe for the srmmu chip version. */
-static void __init get_srmmu_type(void)
-{
- unsigned long mreg, psr;
- unsigned long mod_typ, mod_rev, psr_typ, psr_vers;
-
- mreg = srmmu_get_mmureg(); psr = get_psr();
- mod_typ = (mreg & 0xf0000000) >> 28;
- mod_rev = (mreg & 0x0f000000) >> 24;
- psr_typ = (psr >> 28) & 0xf;
- psr_vers = (psr >> 24) & 0xf;
-
- /* First, check for sparc-leon. */
- if (sparc_cpu_model == sparc_leon) {
- init_leon();
- return;
- }
-
- /* Second, check for HyperSparc or Cypress. */
- if (mod_typ == 1) {
- switch (mod_rev) {
- case 7:
- /* UP or MP Hypersparc */
- init_hypersparc();
- break;
- case 0:
- case 2:
- case 10:
- case 11:
- case 12:
- case 13:
- case 14:
- case 15:
- default:
- prom_printf("Sparc-Linux Cypress support does not longer exit.\n");
- prom_halt();
- break;
- }
- return;
- }
-
- /* Now Fujitsu TurboSparc. It might happen that it is
- * in Swift emulation mode, so we will check later...
- */
- if (psr_typ == 0 && psr_vers == 5) {
- init_turbosparc();
- return;
- }
-
- /* Next check for Fujitsu Swift. */
- if (psr_typ == 0 && psr_vers == 4) {
- phandle cpunode;
- char node_str[128];
-
- /* Look if it is not a TurboSparc emulating Swift... */
- cpunode = prom_getchild(prom_root_node);
- while ((cpunode = prom_getsibling(cpunode)) != 0) {
- prom_getstring(cpunode, "device_type", node_str, sizeof(node_str));
- if (!strcmp(node_str, "cpu")) {
- if (!prom_getintdefault(cpunode, "psr-implementation", 1) &&
- prom_getintdefault(cpunode, "psr-version", 1) == 5) {
- init_turbosparc();
- return;
- }
- break;
- }
- }
-
- init_swift();
- return;
- }
-
- /* Now the Viking family of srmmu. */
- if (psr_typ == 4 &&
- ((psr_vers == 0) ||
- ((psr_vers == 1) && (mod_typ == 0) && (mod_rev == 0)))) {
- init_viking();
- return;
- }
-
- /* Finally the Tsunami. */
- if (psr_typ == 4 && psr_vers == 1 && (mod_typ || mod_rev)) {
- init_tsunami();
- return;
- }
-
- /* Oh well */
- srmmu_is_bad();
-}
-
#ifdef CONFIG_SMP
/* Local cross-calls. */
static void smp_flush_page_for_dma(unsigned long page)
@@ -1736,34 +1008,20 @@ static struct sparc32_cachetlb_ops smp_cachetlb_ops __ro_after_init = {
};
#endif
-/* Load up routines and constants for sun4m and sun4d mmu */
+/* Load up routines and constants for mmu */
void __init load_mmu(void)
{
/* Functions */
- get_srmmu_type();
+ init_leon();
#ifdef CONFIG_SMP
/* El switcheroo... */
local_ops = sparc32_cachetlb_ops;
- if (sparc_cpu_model == sun4d || sparc_cpu_model == sparc_leon) {
- smp_cachetlb_ops.tlb_all = local_ops->tlb_all;
- smp_cachetlb_ops.tlb_mm = local_ops->tlb_mm;
- smp_cachetlb_ops.tlb_range = local_ops->tlb_range;
- smp_cachetlb_ops.tlb_page = local_ops->tlb_page;
- }
-
- if (poke_srmmu == poke_viking) {
- /* Avoid unnecessary cross calls. */
- smp_cachetlb_ops.cache_all = local_ops->cache_all;
- smp_cachetlb_ops.cache_mm = local_ops->cache_mm;
- smp_cachetlb_ops.cache_range = local_ops->cache_range;
- smp_cachetlb_ops.cache_page = local_ops->cache_page;
-
- smp_cachetlb_ops.page_to_ram = local_ops->page_to_ram;
- smp_cachetlb_ops.sig_insns = local_ops->sig_insns;
- smp_cachetlb_ops.page_for_dma = local_ops->page_for_dma;
- }
+ smp_cachetlb_ops.tlb_all = local_ops->tlb_all;
+ smp_cachetlb_ops.tlb_mm = local_ops->tlb_mm;
+ smp_cachetlb_ops.tlb_range = local_ops->tlb_range;
+ smp_cachetlb_ops.tlb_page = local_ops->tlb_page;
/* It really is const after this point. */
sparc32_cachetlb_ops = (const struct sparc32_cachetlb_ops *)
diff --git a/arch/sparc/mm/swift.S b/arch/sparc/mm/swift.S
deleted file mode 100644
index f414bfd8d899..000000000000
--- a/arch/sparc/mm/swift.S
+++ /dev/null
@@ -1,256 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * swift.S: MicroSparc-II mmu/cache operations.
- *
- * Copyright (C) 1999 David S. Miller (davem@...hat.com)
- */
-
-#include <asm/psr.h>
-#include <asm/asi.h>
-#include <asm/page.h>
-#include <asm/pgtsrmmu.h>
-#include <asm/asm-offsets.h>
-
- .text
- .align 4
-
-#if 1 /* XXX screw this, I can't get the VAC flushes working
- * XXX reliably... -DaveM
- */
- .globl swift_flush_cache_all, swift_flush_cache_mm
- .globl swift_flush_cache_range, swift_flush_cache_page
- .globl swift_flush_page_for_dma
- .globl swift_flush_page_to_ram
-
-swift_flush_cache_all:
-swift_flush_cache_mm:
-swift_flush_cache_range:
-swift_flush_cache_page:
-swift_flush_page_for_dma:
-swift_flush_page_to_ram:
- sethi %hi(0x2000), %o0
-1: subcc %o0, 0x10, %o0
- add %o0, %o0, %o1
- sta %g0, [%o0] ASI_M_DATAC_TAG
- bne 1b
- sta %g0, [%o1] ASI_M_TXTC_TAG
- retl
- nop
-#else
-
- .globl swift_flush_cache_all
-swift_flush_cache_all:
- WINDOW_FLUSH(%g4, %g5)
-
- /* Just clear out all the tags. */
- sethi %hi(16 * 1024), %o0
-1: subcc %o0, 16, %o0
- sta %g0, [%o0] ASI_M_TXTC_TAG
- bne 1b
- sta %g0, [%o0] ASI_M_DATAC_TAG
- retl
- nop
-
- .globl swift_flush_cache_mm
-swift_flush_cache_mm:
- ld [%o0 + AOFF_mm_context], %g2
- cmp %g2, -1
- be swift_flush_cache_mm_out
- WINDOW_FLUSH(%g4, %g5)
- rd %psr, %g1
- andn %g1, PSR_ET, %g3
- wr %g3, 0x0, %psr
- nop
- nop
- mov SRMMU_CTX_REG, %g7
- lda [%g7] ASI_M_MMUREGS, %g5
- sta %g2, [%g7] ASI_M_MMUREGS
-
-#if 1
- sethi %hi(0x2000), %o0
-1: subcc %o0, 0x10, %o0
- sta %g0, [%o0] ASI_M_FLUSH_CTX
- bne 1b
- nop
-#else
- clr %o0
- or %g0, 2048, %g7
- or %g0, 2048, %o1
- add %o1, 2048, %o2
- add %o2, 2048, %o3
- mov 16, %o4
- add %o4, 2048, %o5
- add %o5, 2048, %g2
- add %g2, 2048, %g3
-1: sta %g0, [%o0 ] ASI_M_FLUSH_CTX
- sta %g0, [%o0 + %o1] ASI_M_FLUSH_CTX
- sta %g0, [%o0 + %o2] ASI_M_FLUSH_CTX
- sta %g0, [%o0 + %o3] ASI_M_FLUSH_CTX
- sta %g0, [%o0 + %o4] ASI_M_FLUSH_CTX
- sta %g0, [%o0 + %o5] ASI_M_FLUSH_CTX
- sta %g0, [%o0 + %g2] ASI_M_FLUSH_CTX
- sta %g0, [%o0 + %g3] ASI_M_FLUSH_CTX
- subcc %g7, 32, %g7
- bne 1b
- add %o0, 32, %o0
-#endif
-
- mov SRMMU_CTX_REG, %g7
- sta %g5, [%g7] ASI_M_MMUREGS
- wr %g1, 0x0, %psr
- nop
- nop
-swift_flush_cache_mm_out:
- retl
- nop
-
- .globl swift_flush_cache_range
-swift_flush_cache_range:
- ld [%o0 + VMA_VM_MM], %o0
- sub %o2, %o1, %o2
- sethi %hi(4096), %o3
- cmp %o2, %o3
- bgu swift_flush_cache_mm
- nop
- b 70f
- nop
-
- .globl swift_flush_cache_page
-swift_flush_cache_page:
- ld [%o0 + VMA_VM_MM], %o0
-70:
- ld [%o0 + AOFF_mm_context], %g2
- cmp %g2, -1
- be swift_flush_cache_page_out
- WINDOW_FLUSH(%g4, %g5)
- rd %psr, %g1
- andn %g1, PSR_ET, %g3
- wr %g3, 0x0, %psr
- nop
- nop
- mov SRMMU_CTX_REG, %g7
- lda [%g7] ASI_M_MMUREGS, %g5
- sta %g2, [%g7] ASI_M_MMUREGS
-
- andn %o1, (PAGE_SIZE - 1), %o1
-#if 1
- sethi %hi(0x1000), %o0
-1: subcc %o0, 0x10, %o0
- sta %g0, [%o1 + %o0] ASI_M_FLUSH_PAGE
- bne 1b
- nop
-#else
- or %g0, 512, %g7
- or %g0, 512, %o0
- add %o0, 512, %o2
- add %o2, 512, %o3
- add %o3, 512, %o4
- add %o4, 512, %o5
- add %o5, 512, %g3
- add %g3, 512, %g4
-1: sta %g0, [%o1 ] ASI_M_FLUSH_PAGE
- sta %g0, [%o1 + %o0] ASI_M_FLUSH_PAGE
- sta %g0, [%o1 + %o2] ASI_M_FLUSH_PAGE
- sta %g0, [%o1 + %o3] ASI_M_FLUSH_PAGE
- sta %g0, [%o1 + %o4] ASI_M_FLUSH_PAGE
- sta %g0, [%o1 + %o5] ASI_M_FLUSH_PAGE
- sta %g0, [%o1 + %g3] ASI_M_FLUSH_PAGE
- sta %g0, [%o1 + %g4] ASI_M_FLUSH_PAGE
- subcc %g7, 16, %g7
- bne 1b
- add %o1, 16, %o1
-#endif
-
- mov SRMMU_CTX_REG, %g7
- sta %g5, [%g7] ASI_M_MMUREGS
- wr %g1, 0x0, %psr
- nop
- nop
-swift_flush_cache_page_out:
- retl
- nop
-
- /* Swift is write-thru, however it is not
- * I/O nor TLB-walk coherent. Also it has
- * caches which are virtually indexed and tagged.
- */
- .globl swift_flush_page_for_dma
- .globl swift_flush_page_to_ram
-swift_flush_page_for_dma:
-swift_flush_page_to_ram:
- andn %o0, (PAGE_SIZE - 1), %o1
-#if 1
- sethi %hi(0x1000), %o0
-1: subcc %o0, 0x10, %o0
- sta %g0, [%o1 + %o0] ASI_M_FLUSH_PAGE
- bne 1b
- nop
-#else
- or %g0, 512, %g7
- or %g0, 512, %o0
- add %o0, 512, %o2
- add %o2, 512, %o3
- add %o3, 512, %o4
- add %o4, 512, %o5
- add %o5, 512, %g3
- add %g3, 512, %g4
-1: sta %g0, [%o1 ] ASI_M_FLUSH_PAGE
- sta %g0, [%o1 + %o0] ASI_M_FLUSH_PAGE
- sta %g0, [%o1 + %o2] ASI_M_FLUSH_PAGE
- sta %g0, [%o1 + %o3] ASI_M_FLUSH_PAGE
- sta %g0, [%o1 + %o4] ASI_M_FLUSH_PAGE
- sta %g0, [%o1 + %o5] ASI_M_FLUSH_PAGE
- sta %g0, [%o1 + %g3] ASI_M_FLUSH_PAGE
- sta %g0, [%o1 + %g4] ASI_M_FLUSH_PAGE
- subcc %g7, 16, %g7
- bne 1b
- add %o1, 16, %o1
-#endif
- retl
- nop
-#endif
-
- .globl swift_flush_sig_insns
-swift_flush_sig_insns:
- flush %o1
- retl
- flush %o1 + 4
-
- .globl swift_flush_tlb_mm
- .globl swift_flush_tlb_range
- .globl swift_flush_tlb_all
-swift_flush_tlb_range:
- ld [%o0 + VMA_VM_MM], %o0
-swift_flush_tlb_mm:
- ld [%o0 + AOFF_mm_context], %g2
- cmp %g2, -1
- be swift_flush_tlb_all_out
-swift_flush_tlb_all:
- mov 0x400, %o1
- sta %g0, [%o1] ASI_M_FLUSH_PROBE
-swift_flush_tlb_all_out:
- retl
- nop
-
- .globl swift_flush_tlb_page
-swift_flush_tlb_page:
- ld [%o0 + VMA_VM_MM], %o0
- mov SRMMU_CTX_REG, %g1
- ld [%o0 + AOFF_mm_context], %o3
- andn %o1, (PAGE_SIZE - 1), %o1
- cmp %o3, -1
- be swift_flush_tlb_page_out
- nop
-#if 1
- mov 0x400, %o1
- sta %g0, [%o1] ASI_M_FLUSH_PROBE
-#else
- lda [%g1] ASI_M_MMUREGS, %g5
- sta %o3, [%g1] ASI_M_MMUREGS
- sta %g0, [%o1] ASI_M_FLUSH_PAGE /* rem. virt. cache. prot. */
- sta %g0, [%o1] ASI_M_FLUSH_PROBE
- sta %g5, [%g1] ASI_M_MMUREGS
-#endif
-swift_flush_tlb_page_out:
- retl
- nop
diff --git a/arch/sparc/mm/tsunami.S b/arch/sparc/mm/tsunami.S
deleted file mode 100644
index 62b742df65dc..000000000000
--- a/arch/sparc/mm/tsunami.S
+++ /dev/null
@@ -1,132 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * tsunami.S: High speed MicroSparc-I mmu/cache operations.
- *
- * Copyright (C) 1997 David S. Miller (davem@...p.rutgers.edu)
- */
-
-#include <asm/ptrace.h>
-#include <asm/asm-offsets.h>
-#include <asm/psr.h>
-#include <asm/asi.h>
-#include <asm/page.h>
-#include <asm/pgtsrmmu.h>
-
- .text
- .align 4
-
- .globl tsunami_flush_cache_all, tsunami_flush_cache_mm
- .globl tsunami_flush_cache_range, tsunami_flush_cache_page
- .globl tsunami_flush_page_to_ram, tsunami_flush_page_for_dma
- .globl tsunami_flush_sig_insns
- .globl tsunami_flush_tlb_all, tsunami_flush_tlb_mm
- .globl tsunami_flush_tlb_range, tsunami_flush_tlb_page
-
- /* Sliiick... */
-tsunami_flush_cache_page:
-tsunami_flush_cache_range:
- ld [%o0 + VMA_VM_MM], %o0
-tsunami_flush_cache_mm:
- ld [%o0 + AOFF_mm_context], %g2
- cmp %g2, -1
- be tsunami_flush_cache_out
-tsunami_flush_cache_all:
- WINDOW_FLUSH(%g4, %g5)
-tsunami_flush_page_for_dma:
- sta %g0, [%g0] ASI_M_IC_FLCLEAR
- sta %g0, [%g0] ASI_M_DC_FLCLEAR
-tsunami_flush_cache_out:
-tsunami_flush_page_to_ram:
- retl
- nop
-
-tsunami_flush_sig_insns:
- flush %o1
- retl
- flush %o1 + 4
-
- /* More slick stuff... */
-tsunami_flush_tlb_range:
- ld [%o0 + VMA_VM_MM], %o0
-tsunami_flush_tlb_mm:
- ld [%o0 + AOFF_mm_context], %g2
- cmp %g2, -1
- be tsunami_flush_tlb_out
-tsunami_flush_tlb_all:
- mov 0x400, %o1
- sta %g0, [%o1] ASI_M_FLUSH_PROBE
- nop
- nop
- nop
- nop
- nop
-tsunami_flush_tlb_out:
- retl
- nop
-
- /* This one can be done in a fine grained manner... */
-tsunami_flush_tlb_page:
- ld [%o0 + VMA_VM_MM], %o0
- mov SRMMU_CTX_REG, %g1
- ld [%o0 + AOFF_mm_context], %o3
- andn %o1, (PAGE_SIZE - 1), %o1
- cmp %o3, -1
- be tsunami_flush_tlb_page_out
- lda [%g1] ASI_M_MMUREGS, %g5
- sta %o3, [%g1] ASI_M_MMUREGS
- sta %g0, [%o1] ASI_M_FLUSH_PROBE
- nop
- nop
- nop
- nop
- nop
-tsunami_flush_tlb_page_out:
- retl
- sta %g5, [%g1] ASI_M_MMUREGS
-
-#define MIRROR_BLOCK(dst, src, offset, t0, t1, t2, t3) \
- ldd [src + offset + 0x18], t0; \
- std t0, [dst + offset + 0x18]; \
- ldd [src + offset + 0x10], t2; \
- std t2, [dst + offset + 0x10]; \
- ldd [src + offset + 0x08], t0; \
- std t0, [dst + offset + 0x08]; \
- ldd [src + offset + 0x00], t2; \
- std t2, [dst + offset + 0x00];
-
-tsunami_copy_1page:
-/* NOTE: This routine has to be shorter than 70insns --jj */
- or %g0, (PAGE_SIZE >> 8), %g1
-1:
- MIRROR_BLOCK(%o0, %o1, 0x00, %o2, %o3, %o4, %o5)
- MIRROR_BLOCK(%o0, %o1, 0x20, %o2, %o3, %o4, %o5)
- MIRROR_BLOCK(%o0, %o1, 0x40, %o2, %o3, %o4, %o5)
- MIRROR_BLOCK(%o0, %o1, 0x60, %o2, %o3, %o4, %o5)
- MIRROR_BLOCK(%o0, %o1, 0x80, %o2, %o3, %o4, %o5)
- MIRROR_BLOCK(%o0, %o1, 0xa0, %o2, %o3, %o4, %o5)
- MIRROR_BLOCK(%o0, %o1, 0xc0, %o2, %o3, %o4, %o5)
- MIRROR_BLOCK(%o0, %o1, 0xe0, %o2, %o3, %o4, %o5)
- subcc %g1, 1, %g1
- add %o0, 0x100, %o0
- bne 1b
- add %o1, 0x100, %o1
-
- .globl tsunami_setup_blockops
-tsunami_setup_blockops:
- sethi %hi(__copy_1page), %o0
- or %o0, %lo(__copy_1page), %o0
- sethi %hi(tsunami_copy_1page), %o1
- or %o1, %lo(tsunami_copy_1page), %o1
- sethi %hi(tsunami_setup_blockops), %o2
- or %o2, %lo(tsunami_setup_blockops), %o2
- ld [%o1], %o4
-1: add %o1, 4, %o1
- st %o4, [%o0]
- add %o0, 4, %o0
- cmp %o1, %o2
- bne 1b
- ld [%o1], %o4
- sta %g0, [%g0] ASI_M_IC_FLCLEAR
- sta %g0, [%g0] ASI_M_DC_FLCLEAR
- retl
- nop
diff --git a/arch/sparc/mm/viking.S b/arch/sparc/mm/viking.S
deleted file mode 100644
index 48f062de7a7f..000000000000
--- a/arch/sparc/mm/viking.S
+++ /dev/null
@@ -1,284 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * viking.S: High speed Viking cache/mmu operations
- *
- * Copyright (C) 1997 Eddie C. Dost (ecd@...net.be)
- * Copyright (C) 1997,1998,1999 Jakub Jelinek (jj@...ra.linux.cz)
- * Copyright (C) 1999 Pavel Semerad (semerad@...000.ms.mff.cuni.cz)
- */
-
-#include <asm/ptrace.h>
-#include <asm/psr.h>
-#include <asm/asm-offsets.h>
-#include <asm/asi.h>
-#include <asm/mxcc.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/pgtsrmmu.h>
-#include <asm/viking.h>
-
-#ifdef CONFIG_SMP
- .data
- .align 4
-sun4dsmp_flush_tlb_spin:
- .word 0
-#endif
-
- .text
- .align 4
-
- .globl viking_flush_cache_all, viking_flush_cache_mm
- .globl viking_flush_cache_range, viking_flush_cache_page
- .globl viking_flush_page, viking_mxcc_flush_page
- .globl viking_flush_page_for_dma, viking_flush_page_to_ram
- .globl viking_flush_sig_insns
- .globl viking_flush_tlb_all, viking_flush_tlb_mm
- .globl viking_flush_tlb_range, viking_flush_tlb_page
-
-viking_flush_page:
- sethi %hi(PAGE_OFFSET), %g2
- sub %o0, %g2, %g3
- srl %g3, 12, %g1 ! ppage >> 12
-
- clr %o1 ! set counter, 0 - 127
- sethi %hi(PAGE_OFFSET + PAGE_SIZE - 0x80000000), %o3
- sethi %hi(0x80000000), %o4
- sethi %hi(VIKING_PTAG_VALID), %o5
- sethi %hi(2*PAGE_SIZE), %o0
- sethi %hi(PAGE_SIZE), %g7
- clr %o2 ! block counter, 0 - 3
-5:
- sll %o1, 5, %g4
- or %g4, %o4, %g4 ! 0x80000000 | (set << 5)
-
- sll %o2, 26, %g5 ! block << 26
-6:
- or %g5, %g4, %g5
- ldda [%g5] ASI_M_DATAC_TAG, %g2
- cmp %g3, %g1 ! ptag == ppage?
- bne 7f
- inc %o2
-
- andcc %g2, %o5, %g0 ! ptag VALID?
- be 7f
- add %g4, %o3, %g2 ! (PAGE_OFFSET + PAGE_SIZE) | (set << 5)
- ld [%g2], %g3
- ld [%g2 + %g7], %g3
- add %g2, %o0, %g2
- ld [%g2], %g3
- ld [%g2 + %g7], %g3
- add %g2, %o0, %g2
- ld [%g2], %g3
- ld [%g2 + %g7], %g3
- add %g2, %o0, %g2
- ld [%g2], %g3
- b 8f
- ld [%g2 + %g7], %g3
-
-7:
- cmp %o2, 3
- ble 6b
- sll %o2, 26, %g5 ! block << 26
-
-8: inc %o1
- cmp %o1, 0x7f
- ble 5b
- clr %o2
-
-9: retl
- nop
-
-viking_mxcc_flush_page:
- sethi %hi(PAGE_OFFSET), %g2
- sub %o0, %g2, %g3
- sub %g3, -PAGE_SIZE, %g3 ! ppage + PAGE_SIZE
- sethi %hi(MXCC_SRCSTREAM), %o3 ! assume %hi(MXCC_SRCSTREAM) == %hi(MXCC_DESTSTREAM)
- mov 0x10, %g2 ! set cacheable bit
- or %o3, %lo(MXCC_SRCSTREAM), %o2
- or %o3, %lo(MXCC_DESSTREAM), %o3
- sub %g3, MXCC_STREAM_SIZE, %g3
-6:
- stda %g2, [%o2] ASI_M_MXCC
- stda %g2, [%o3] ASI_M_MXCC
- andncc %g3, PAGE_MASK, %g0
- bne 6b
- sub %g3, MXCC_STREAM_SIZE, %g3
-
-9: retl
- nop
-
-viking_flush_cache_page:
-viking_flush_cache_range:
-#ifndef CONFIG_SMP
- ld [%o0 + VMA_VM_MM], %o0
-#endif
-viking_flush_cache_mm:
-#ifndef CONFIG_SMP
- ld [%o0 + AOFF_mm_context], %g1
- cmp %g1, -1
- bne viking_flush_cache_all
- nop
- b,a viking_flush_cache_out
-#endif
-viking_flush_cache_all:
- WINDOW_FLUSH(%g4, %g5)
-viking_flush_cache_out:
- retl
- nop
-
-viking_flush_tlb_all:
- mov 0x400, %g1
- retl
- sta %g0, [%g1] ASI_M_FLUSH_PROBE
-
-viking_flush_tlb_mm:
- mov SRMMU_CTX_REG, %g1
- ld [%o0 + AOFF_mm_context], %o1
- lda [%g1] ASI_M_MMUREGS, %g5
-#ifndef CONFIG_SMP
- cmp %o1, -1
- be 1f
-#endif
- mov 0x300, %g2
- sta %o1, [%g1] ASI_M_MMUREGS
- sta %g0, [%g2] ASI_M_FLUSH_PROBE
- retl
- sta %g5, [%g1] ASI_M_MMUREGS
-#ifndef CONFIG_SMP
-1: retl
- nop
-#endif
-
-viking_flush_tlb_range:
- ld [%o0 + VMA_VM_MM], %o0
- mov SRMMU_CTX_REG, %g1
- ld [%o0 + AOFF_mm_context], %o3
- lda [%g1] ASI_M_MMUREGS, %g5
-#ifndef CONFIG_SMP
- cmp %o3, -1
- be 2f
-#endif
- sethi %hi(~((1 << PGDIR_SHIFT) - 1)), %o4
- sta %o3, [%g1] ASI_M_MMUREGS
- and %o1, %o4, %o1
- add %o1, 0x200, %o1
- sta %g0, [%o1] ASI_M_FLUSH_PROBE
-1: sub %o1, %o4, %o1
- cmp %o1, %o2
- blu,a 1b
- sta %g0, [%o1] ASI_M_FLUSH_PROBE
- retl
- sta %g5, [%g1] ASI_M_MMUREGS
-#ifndef CONFIG_SMP
-2: retl
- nop
-#endif
-
-viking_flush_tlb_page:
- ld [%o0 + VMA_VM_MM], %o0
- mov SRMMU_CTX_REG, %g1
- ld [%o0 + AOFF_mm_context], %o3
- lda [%g1] ASI_M_MMUREGS, %g5
-#ifndef CONFIG_SMP
- cmp %o3, -1
- be 1f
-#endif
- and %o1, PAGE_MASK, %o1
- sta %o3, [%g1] ASI_M_MMUREGS
- sta %g0, [%o1] ASI_M_FLUSH_PROBE
- retl
- sta %g5, [%g1] ASI_M_MMUREGS
-#ifndef CONFIG_SMP
-1: retl
- nop
-#endif
-
-viking_flush_page_to_ram:
-viking_flush_page_for_dma:
-viking_flush_sig_insns:
- retl
- nop
-
-#ifdef CONFIG_SMP
- .globl sun4dsmp_flush_tlb_all, sun4dsmp_flush_tlb_mm
- .globl sun4dsmp_flush_tlb_range, sun4dsmp_flush_tlb_page
-sun4dsmp_flush_tlb_all:
- sethi %hi(sun4dsmp_flush_tlb_spin), %g3
-1: ldstub [%g3 + %lo(sun4dsmp_flush_tlb_spin)], %g5
- tst %g5
- bne 2f
- mov 0x400, %g1
- sta %g0, [%g1] ASI_M_FLUSH_PROBE
- retl
- stb %g0, [%g3 + %lo(sun4dsmp_flush_tlb_spin)]
-2: tst %g5
- bne,a 2b
- ldub [%g3 + %lo(sun4dsmp_flush_tlb_spin)], %g5
- b,a 1b
-
-sun4dsmp_flush_tlb_mm:
- sethi %hi(sun4dsmp_flush_tlb_spin), %g3
-1: ldstub [%g3 + %lo(sun4dsmp_flush_tlb_spin)], %g5
- tst %g5
- bne 2f
- mov SRMMU_CTX_REG, %g1
- ld [%o0 + AOFF_mm_context], %o1
- lda [%g1] ASI_M_MMUREGS, %g5
- mov 0x300, %g2
- sta %o1, [%g1] ASI_M_MMUREGS
- sta %g0, [%g2] ASI_M_FLUSH_PROBE
- sta %g5, [%g1] ASI_M_MMUREGS
- retl
- stb %g0, [%g3 + %lo(sun4dsmp_flush_tlb_spin)]
-2: tst %g5
- bne,a 2b
- ldub [%g3 + %lo(sun4dsmp_flush_tlb_spin)], %g5
- b,a 1b
-
-sun4dsmp_flush_tlb_range:
- sethi %hi(sun4dsmp_flush_tlb_spin), %g3
-1: ldstub [%g3 + %lo(sun4dsmp_flush_tlb_spin)], %g5
- tst %g5
- bne 3f
- mov SRMMU_CTX_REG, %g1
- ld [%o0 + VMA_VM_MM], %o0
- ld [%o0 + AOFF_mm_context], %o3
- lda [%g1] ASI_M_MMUREGS, %g5
- sethi %hi(~((1 << PGDIR_SHIFT) - 1)), %o4
- sta %o3, [%g1] ASI_M_MMUREGS
- and %o1, %o4, %o1
- add %o1, 0x200, %o1
- sta %g0, [%o1] ASI_M_FLUSH_PROBE
-2: sub %o1, %o4, %o1
- cmp %o1, %o2
- blu,a 2b
- sta %g0, [%o1] ASI_M_FLUSH_PROBE
- sta %g5, [%g1] ASI_M_MMUREGS
- retl
- stb %g0, [%g3 + %lo(sun4dsmp_flush_tlb_spin)]
-3: tst %g5
- bne,a 3b
- ldub [%g3 + %lo(sun4dsmp_flush_tlb_spin)], %g5
- b,a 1b
-
-sun4dsmp_flush_tlb_page:
- sethi %hi(sun4dsmp_flush_tlb_spin), %g3
-1: ldstub [%g3 + %lo(sun4dsmp_flush_tlb_spin)], %g5
- tst %g5
- bne 2f
- mov SRMMU_CTX_REG, %g1
- ld [%o0 + VMA_VM_MM], %o0
- ld [%o0 + AOFF_mm_context], %o3
- lda [%g1] ASI_M_MMUREGS, %g5
- and %o1, PAGE_MASK, %o1
- sta %o3, [%g1] ASI_M_MMUREGS
- sta %g0, [%o1] ASI_M_FLUSH_PROBE
- sta %g5, [%g1] ASI_M_MMUREGS
- retl
- stb %g0, [%g3 + %lo(sun4dsmp_flush_tlb_spin)]
-2: tst %g5
- bne,a 2b
- ldub [%g3 + %lo(sun4dsmp_flush_tlb_spin)], %g5
- b,a 1b
- nop
-#endif
--
2.27.0
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