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| author | Markos Chandras <markos.chandras@imgtec.com> | 2013-12-19 17:41:05 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2014-03-26 23:09:16 +0100 |
| commit | 9d8e573683ca85e2bd3cade8b5c42e195e6390ad (patch) | |
| tree | e235e9f1c040dae06aff6d9d55e9388cf6508376 /arch | |
| parent | MIPS: asm: uaccess: Add EVA support for str*_user operations (diff) | |
| download | linux-9d8e573683ca85e2bd3cade8b5c42e195e6390ad.tar.xz linux-9d8e573683ca85e2bd3cade8b5c42e195e6390ad.zip | |
MIPS: kernel: unaligned: Add EVA instruction wrappers
Use the load/store instruction wrappers from asm/asm.h to
perform such operations when operating in EVA mode.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/kernel/unaligned.c | 49 |
1 files changed, 25 insertions, 24 deletions
diff --git a/arch/mips/kernel/unaligned.c b/arch/mips/kernel/unaligned.c index c369a5d35527..5ec8f00b51b5 100644 --- a/arch/mips/kernel/unaligned.c +++ b/arch/mips/kernel/unaligned.c @@ -7,6 +7,7 @@ * * Copyright (C) 1996, 1998, 1999, 2002 by Ralf Baechle * Copyright (C) 1999 Silicon Graphics, Inc. + * Copyright (C) 2014 Imagination Technologies Ltd. * * This file contains exception handler for address error exception with the * special capability to execute faulting instructions in software. The @@ -110,8 +111,8 @@ extern void show_registers(struct pt_regs *regs); #ifdef __BIG_ENDIAN #define LoadHW(addr, value, res) \ __asm__ __volatile__ (".set\tnoat\n" \ - "1:\tlb\t%0, 0(%2)\n" \ - "2:\tlbu\t$1, 1(%2)\n\t" \ + "1:\t"user_lb("%0", "0(%2)")"\n" \ + "2:\t"user_lbu("$1", "1(%2)")"\n\t" \ "sll\t%0, 0x8\n\t" \ "or\t%0, $1\n\t" \ "li\t%1, 0\n" \ @@ -130,8 +131,8 @@ extern void show_registers(struct pt_regs *regs); #define LoadW(addr, value, res) \ __asm__ __volatile__ ( \ - "1:\tlwl\t%0, (%2)\n" \ - "2:\tlwr\t%0, 3(%2)\n\t" \ + "1:\t"user_lwl("%0", "(%2)")"\n" \ + "2:\t"user_lwr("%0", "3(%2)")"\n\t" \ "li\t%1, 0\n" \ "3:\n\t" \ ".insn\n\t" \ @@ -149,8 +150,8 @@ extern void show_registers(struct pt_regs *regs); #define LoadHWU(addr, value, res) \ __asm__ __volatile__ ( \ ".set\tnoat\n" \ - "1:\tlbu\t%0, 0(%2)\n" \ - "2:\tlbu\t$1, 1(%2)\n\t" \ + "1:\t"user_lbu("%0", "0(%2)")"\n" \ + "2:\t"user_lbu("$1", "1(%2)")"\n\t" \ "sll\t%0, 0x8\n\t" \ "or\t%0, $1\n\t" \ "li\t%1, 0\n" \ @@ -170,8 +171,8 @@ extern void show_registers(struct pt_regs *regs); #define LoadWU(addr, value, res) \ __asm__ __volatile__ ( \ - "1:\tlwl\t%0, (%2)\n" \ - "2:\tlwr\t%0, 3(%2)\n\t" \ + "1:\t"user_lwl("%0", "(%2)")"\n" \ + "2:\t"user_lwr("%0", "3(%2)")"\n\t" \ "dsll\t%0, %0, 32\n\t" \ "dsrl\t%0, %0, 32\n\t" \ "li\t%1, 0\n" \ @@ -209,9 +210,9 @@ extern void show_registers(struct pt_regs *regs); #define StoreHW(addr, value, res) \ __asm__ __volatile__ ( \ ".set\tnoat\n" \ - "1:\tsb\t%1, 1(%2)\n\t" \ + "1:\t"user_sb("%1", "1(%2)")"\n" \ "srl\t$1, %1, 0x8\n" \ - "2:\tsb\t$1, 0(%2)\n\t" \ + "2:\t"user_sb("$1", "0(%2)")"\n" \ ".set\tat\n\t" \ "li\t%0, 0\n" \ "3:\n\t" \ @@ -229,8 +230,8 @@ extern void show_registers(struct pt_regs *regs); #define StoreW(addr, value, res) \ __asm__ __volatile__ ( \ - "1:\tswl\t%1,(%2)\n" \ - "2:\tswr\t%1, 3(%2)\n\t" \ + "1:\t"user_swl("%1", "(%2)")"\n" \ + "2:\t"user_swr("%1", "3(%2)")"\n\t" \ "li\t%0, 0\n" \ "3:\n\t" \ ".insn\n\t" \ @@ -267,8 +268,8 @@ extern void show_registers(struct pt_regs *regs); #ifdef __LITTLE_ENDIAN #define LoadHW(addr, value, res) \ __asm__ __volatile__ (".set\tnoat\n" \ - "1:\tlb\t%0, 1(%2)\n" \ - "2:\tlbu\t$1, 0(%2)\n\t" \ + "1:\t"user_lb("%0", "1(%2)")"\n" \ + "2:\t"user_lbu("$1", "0(%2)")"\n\t" \ "sll\t%0, 0x8\n\t" \ "or\t%0, $1\n\t" \ "li\t%1, 0\n" \ @@ -287,8 +288,8 @@ extern void show_registers(struct pt_regs *regs); #define LoadW(addr, value, res) \ __asm__ __volatile__ ( \ - "1:\tlwl\t%0, 3(%2)\n" \ - "2:\tlwr\t%0, (%2)\n\t" \ + "1:\t"user_lwl("%0", "3(%2)")"\n" \ + "2:\t"user_lwr("%0", "(%2)")"\n\t" \ "li\t%1, 0\n" \ "3:\n\t" \ ".insn\n\t" \ @@ -306,8 +307,8 @@ extern void show_registers(struct pt_regs *regs); #define LoadHWU(addr, value, res) \ __asm__ __volatile__ ( \ ".set\tnoat\n" \ - "1:\tlbu\t%0, 1(%2)\n" \ - "2:\tlbu\t$1, 0(%2)\n\t" \ + "1:\t"user_lbu("%0", "1(%2)")"\n" \ + "2:\t"user_lbu("$1", "0(%2)")"\n\t" \ "sll\t%0, 0x8\n\t" \ "or\t%0, $1\n\t" \ "li\t%1, 0\n" \ @@ -327,8 +328,8 @@ extern void show_registers(struct pt_regs *regs); #define LoadWU(addr, value, res) \ __asm__ __volatile__ ( \ - "1:\tlwl\t%0, 3(%2)\n" \ - "2:\tlwr\t%0, (%2)\n\t" \ + "1:\t"user_lwl("%0", "3(%2)")"\n" \ + "2:\t"user_lwr("%0", "(%2)")"\n\t" \ "dsll\t%0, %0, 32\n\t" \ "dsrl\t%0, %0, 32\n\t" \ "li\t%1, 0\n" \ @@ -366,9 +367,9 @@ extern void show_registers(struct pt_regs *regs); #define StoreHW(addr, value, res) \ __asm__ __volatile__ ( \ ".set\tnoat\n" \ - "1:\tsb\t%1, 0(%2)\n\t" \ + "1:\t"user_sb("%1", "0(%2)")"\n" \ "srl\t$1,%1, 0x8\n" \ - "2:\tsb\t$1, 1(%2)\n\t" \ + "2:\t"user_sb("$1", "1(%2)")"\n" \ ".set\tat\n\t" \ "li\t%0, 0\n" \ "3:\n\t" \ @@ -386,8 +387,8 @@ extern void show_registers(struct pt_regs *regs); #define StoreW(addr, value, res) \ __asm__ __volatile__ ( \ - "1:\tswl\t%1, 3(%2)\n" \ - "2:\tswr\t%1, (%2)\n\t" \ + "1:\t"user_swl("%1", "3(%2)")"\n" \ + "2:\t"user_swr("%1", "(%2)")"\n\t" \ "li\t%0, 0\n" \ "3:\n\t" \ ".insn\n\t" \ |