diff options
Diffstat (limited to 'include/asm-ppc64/processor.h')
| -rw-r--r-- | include/asm-ppc64/processor.h | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/include/asm-ppc64/processor.h b/include/asm-ppc64/processor.h index 5ba6aa4..809c634b 100644 --- a/include/asm-ppc64/processor.h +++ b/include/asm-ppc64/processor.h @@ -164,6 +164,9 @@ #define SPRN_USIA 0x3AB /* User Sampled Instruction Address Register */ #define SPRN_XER 0x001 /* Fixed Point Exception Register */ #define SPRN_VRSAVE 0x100 /* Vector save */ +#define SPRN_CTRLF 0x088 +#define SPRN_CTRLT 0x098 +#define CTRL_RUNLATCH 0x1 /* Performance monitor SPRs */ #define SPRN_SIAR 780 @@ -279,12 +282,6 @@ #define XGLUE(a,b) a##b #define GLUE(a,b) XGLUE(a,b) -/* iSeries CTRL register (for runlatch) */ - -#define CTRLT 0x098 -#define CTRLF 0x088 -#define RUNLATCH 0x0001 - #ifdef __ASSEMBLY__ #define _GLOBAL(name) \ @@ -499,6 +496,24 @@ static inline void prefetchw(const void *x) #define HAVE_ARCH_PICK_MMAP_LAYOUT +static inline void ppc64_runlatch_on(void) +{ + unsigned long ctrl; + + ctrl = mfspr(SPRN_CTRLF); + ctrl |= CTRL_RUNLATCH; + mtspr(SPRN_CTRLT, ctrl); +} + +static inline void ppc64_runlatch_off(void) +{ + unsigned long ctrl; + + ctrl = mfspr(SPRN_CTRLF); + ctrl &= ~CTRL_RUNLATCH; + mtspr(SPRN_CTRLT, ctrl); +} + #endif /* __KERNEL__ */ #endif /* __ASSEMBLY__ */ |
