diff options
| author | Zhang, Yanmin <yanmin_zhang@linux.intel.com> | 2006-02-27 11:37:45 +0800 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2006-03-30 17:14:12 -0800 |
| commit | f19180056ea09ec6a5d32e741234451a1e6eba4d (patch) | |
| tree | 386a178dd80773e3b62e6989f4faaaddb9602aa8 /include/asm-ia64/pal.h | |
| parent | d1127e40e8d75cd3855e35424937c73d0bcec558 (diff) | |
| download | op-kernel-dev-f19180056ea09ec6a5d32e741234451a1e6eba4d.zip op-kernel-dev-f19180056ea09ec6a5d32e741234451a1e6eba4d.tar.gz | |
[IA64] Export cpu cache info by sysfs
The patch exports 8 attributes of cpu cache info under
/sys/devices/system/cpu/cpuX/cache/indexX:
1) level
2) type
3) coherency_line_size
4) ways_of_associativity
5) size
6) shared_cpu_map
7) attributes
8) number_of_sets: number_of_sets=size/ways_of_associativity/coherency_line_size.
Signed-off-by: Zhang Yanmin <yanmin.zhang@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'include/asm-ia64/pal.h')
| -rw-r--r-- | include/asm-ia64/pal.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/asm-ia64/pal.h b/include/asm-ia64/pal.h index 4e7e6f2..5d229c5 100644 --- a/include/asm-ia64/pal.h +++ b/include/asm-ia64/pal.h @@ -68,6 +68,7 @@ #define PAL_SHUTDOWN 40 /* enter processor shutdown state */ #define PAL_PREFETCH_VISIBILITY 41 /* Make Processor Prefetches Visible */ #define PAL_LOGICAL_TO_PHYSICAL 42 /* returns information on logical to physical processor mapping */ +#define PAL_CACHE_SHARED_INFO 43 /* returns information on caches shared by logical processor */ #define PAL_COPY_PAL 256 /* relocate PAL procedures and PAL PMI */ #define PAL_HALT_INFO 257 /* return the low power capabilities of processor */ @@ -1647,6 +1648,33 @@ ia64_pal_logical_to_phys(u64 proc_number, pal_logical_to_physical_t *mapping) return iprv.status; } + +typedef struct pal_cache_shared_info_s +{ + u64 num_shared; + pal_proc_n_log_info1_t ppli1; + pal_proc_n_log_info2_t ppli2; +} pal_cache_shared_info_t; + +/* Get information on logical to physical processor mappings. */ +static inline s64 +ia64_pal_cache_shared_info(u64 level, + u64 type, + u64 proc_number, + pal_cache_shared_info_t *info) +{ + struct ia64_pal_retval iprv; + + PAL_CALL(iprv, PAL_CACHE_SHARED_INFO, level, type, proc_number); + + if (iprv.status == PAL_STATUS_SUCCESS) { + info->num_shared = iprv.v0; + info->ppli1.ppli1_data = iprv.v1; + info->ppli2.ppli2_data = iprv.v2; + } + + return iprv.status; +} #endif /* __ASSEMBLY__ */ #endif /* _ASM_IA64_PAL_H */ |
