diff options
Diffstat (limited to 'arch/mips/include/asm/hazards.h')
| -rw-r--r-- | arch/mips/include/asm/hazards.h | 33 |
1 files changed, 4 insertions, 29 deletions
diff --git a/arch/mips/include/asm/hazards.h b/arch/mips/include/asm/hazards.h index b4c20e4..44d6a5b 100644 --- a/arch/mips/include/asm/hazards.h +++ b/arch/mips/include/asm/hazards.h @@ -25,7 +25,7 @@ static inline void name(void) \ } /* - * MIPS R2 instruction hazard barrier. Needs to be called as a subroutine. + * MIPS R2 instruction hazard barrier. Needs to be called as a subroutine. */ extern void mips_ihb(void); @@ -68,7 +68,7 @@ ASMMACRO(back_to_back_c0_hazard, ) /* * gcc has a tradition of misscompiling the previous construct using the - * address of a label as argument to inline assembler. Gas otoh has the + * address of a label as argument to inline assembler. Gas otoh has the * annoying difference between la and dla which are only usable for 32-bit * rsp. 64-bit code, so can't be used without conditional compilation. * The alterantive is switching the assembler to 64-bit code which happens @@ -114,7 +114,7 @@ ASMMACRO(back_to_back_c0_hazard, ) /* * gcc has a tradition of misscompiling the previous construct using the - * address of a label as argument to inline assembler. Gas otoh has the + * address of a label as argument to inline assembler. Gas otoh has the * annoying difference between la and dla which are only usable for 32-bit * rsp. 64-bit code, so can't be used without conditional compilation. * The alterantive is switching the assembler to 64-bit code which happens @@ -141,7 +141,7 @@ do { \ #elif defined(CONFIG_MIPS_ALCHEMY) || defined(CONFIG_CPU_CAVIUM_OCTEON) || \ defined(CONFIG_CPU_LOONGSON2) || defined(CONFIG_CPU_R10000) || \ - defined(CONFIG_CPU_R5500) + defined(CONFIG_CPU_R5500) || defined(CONFIG_CPU_XLR) /* * R10000 rocks - all hazards handled in hardware, so this becomes a nobrainer. @@ -161,31 +161,6 @@ ASMMACRO(back_to_back_c0_hazard, ) #define instruction_hazard() do { } while (0) -#elif defined(CONFIG_CPU_RM9000) - -/* - * RM9000 hazards. When the JTLB is updated by tlbwi or tlbwr, a subsequent - * use of the JTLB for instructions should not occur for 4 cpu cycles and use - * for data translations should not occur for 3 cpu cycles. - */ - -ASMMACRO(mtc0_tlbw_hazard, - _ssnop; _ssnop; _ssnop; _ssnop - ) -ASMMACRO(tlbw_use_hazard, - _ssnop; _ssnop; _ssnop; _ssnop - ) -ASMMACRO(tlb_probe_hazard, - _ssnop; _ssnop; _ssnop; _ssnop - ) -ASMMACRO(irq_enable_hazard, - ) -ASMMACRO(irq_disable_hazard, - ) -ASMMACRO(back_to_back_c0_hazard, - ) -#define instruction_hazard() do { } while (0) - #elif defined(CONFIG_CPU_SB1) /* |