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| author | Chris Mason <clm@fb.com> | 2014-12-02 18:42:03 -0800 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2014-12-02 18:42:03 -0800 |
| commit | 9627aeee3e203e30679549e4962633698a6bf87f (patch) | |
| tree | 30ee313a7049bf3fcc17e346df5737e967fd9a95 /arch/mips/include/asm | |
| parent | cb83b7b81698a4abe531e0ba18b9e288b06947ce (diff) | |
| parent | 5d3edd8f44aac94de7b16f4c54290e24f5e8c532 (diff) | |
| download | talos-op-linux-9627aeee3e203e30679549e4962633698a6bf87f.tar.gz talos-op-linux-9627aeee3e203e30679549e4962633698a6bf87f.zip | |
Merge branch 'raid56-scrub-replace' of git://github.com/miaoxie/linux-btrfs into for-linus
Diffstat (limited to 'arch/mips/include/asm')
| -rw-r--r-- | arch/mips/include/asm/jump_label.h | 8 | ||||
| -rw-r--r-- | arch/mips/include/asm/mach-loongson/cpu-feature-overrides.h | 2 | ||||
| -rw-r--r-- | arch/mips/include/asm/uaccess.h | 12 |
3 files changed, 15 insertions, 7 deletions
diff --git a/arch/mips/include/asm/jump_label.h b/arch/mips/include/asm/jump_label.h index e194f957ca8c..fdbff44e5482 100644 --- a/arch/mips/include/asm/jump_label.h +++ b/arch/mips/include/asm/jump_label.h @@ -20,9 +20,15 @@ #define WORD_INSN ".word" #endif +#ifdef CONFIG_CPU_MICROMIPS +#define NOP_INSN "nop32" +#else +#define NOP_INSN "nop" +#endif + static __always_inline bool arch_static_branch(struct static_key *key) { - asm_volatile_goto("1:\tnop\n\t" + asm_volatile_goto("1:\t" NOP_INSN "\n\t" "nop\n\t" ".pushsection __jump_table, \"aw\"\n\t" WORD_INSN " 1b, %l[l_yes], %0\n\t" diff --git a/arch/mips/include/asm/mach-loongson/cpu-feature-overrides.h b/arch/mips/include/asm/mach-loongson/cpu-feature-overrides.h index 7d28f95b0512..6d69332f21ec 100644 --- a/arch/mips/include/asm/mach-loongson/cpu-feature-overrides.h +++ b/arch/mips/include/asm/mach-loongson/cpu-feature-overrides.h @@ -41,10 +41,8 @@ #define cpu_has_mcheck 0 #define cpu_has_mdmx 0 #define cpu_has_mips16 0 -#define cpu_has_mips32r1 0 #define cpu_has_mips32r2 0 #define cpu_has_mips3d 0 -#define cpu_has_mips64r1 0 #define cpu_has_mips64r2 0 #define cpu_has_mipsmt 0 #define cpu_has_prefetch 0 diff --git a/arch/mips/include/asm/uaccess.h b/arch/mips/include/asm/uaccess.h index a10951090234..133678ab4eb8 100644 --- a/arch/mips/include/asm/uaccess.h +++ b/arch/mips/include/asm/uaccess.h @@ -301,7 +301,8 @@ do { \ __get_kernel_common((x), size, __gu_ptr); \ else \ __get_user_common((x), size, __gu_ptr); \ - } \ + } else \ + (x) = 0; \ \ __gu_err; \ }) @@ -316,6 +317,7 @@ do { \ " .insn \n" \ " .section .fixup,\"ax\" \n" \ "3: li %0, %4 \n" \ + " move %1, $0 \n" \ " j 2b \n" \ " .previous \n" \ " .section __ex_table,\"a\" \n" \ @@ -630,6 +632,7 @@ do { \ " .insn \n" \ " .section .fixup,\"ax\" \n" \ "3: li %0, %4 \n" \ + " move %1, $0 \n" \ " j 2b \n" \ " .previous \n" \ " .section __ex_table,\"a\" \n" \ @@ -773,10 +776,11 @@ extern void __put_user_unaligned_unknown(void); "jal\t" #destination "\n\t" #endif -#ifndef CONFIG_CPU_DADDI_WORKAROUNDS -#define DADDI_SCRATCH "$0" -#else +#if defined(CONFIG_CPU_DADDI_WORKAROUNDS) || (defined(CONFIG_EVA) && \ + defined(CONFIG_CPU_HAS_PREFETCH)) #define DADDI_SCRATCH "$3" +#else +#define DADDI_SCRATCH "$0" #endif extern size_t __copy_user(void *__to, const void *__from, size_t __n); |
