diff options
Diffstat (limited to 'sysdeps/x86_64/cacheinfo.c')
| -rw-r--r-- | sysdeps/x86_64/cacheinfo.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/sysdeps/x86_64/cacheinfo.c b/sysdeps/x86_64/cacheinfo.c index 54220379ec..eae54e725a 100644 --- a/sysdeps/x86_64/cacheinfo.c +++ b/sysdeps/x86_64/cacheinfo.c @@ -455,13 +455,21 @@ __cache_sysconf (int name) /* Data cache size for use in memory and string routines, typically - L1 size. */ + L1 size, rounded to multiple of 256 bytes. */ long int __x86_64_data_cache_size_half attribute_hidden = 32 * 1024 / 2; long int __x86_64_data_cache_size attribute_hidden = 32 * 1024; +/* Similar to __x86_64_data_cache_size_half, but not rounded. */ +long int __x86_64_raw_data_cache_size_half attribute_hidden = 32 * 1024 / 2; +/* Similar to __x86_64_data_cache_size, but not rounded. */ +long int __x86_64_raw_data_cache_size attribute_hidden = 32 * 1024; /* Shared cache size for use in memory and string routines, typically - L2 or L3 size. */ + L2 or L3 size, rounded to multiple of 256 bytes. */ long int __x86_64_shared_cache_size_half attribute_hidden = 1024 * 1024 / 2; long int __x86_64_shared_cache_size attribute_hidden = 1024 * 1024; +/* Similar to __x86_64_shared_cache_size_half, but not rounded. */ +long int __x86_64_raw_shared_cache_size_half attribute_hidden = 1024 * 1024 / 2; +/* Similar to __x86_64_shared_cache_size, but not rounded. */ +long int __x86_64_raw_shared_cache_size attribute_hidden = 1024 * 1024; #ifndef DISABLE_PREFETCHW /* PREFETCHW support flag for use in memory and string routines. */ @@ -661,12 +669,20 @@ init_cacheinfo (void) if (data > 0) { + __x86_64_raw_data_cache_size_half = data / 2; + __x86_64_raw_data_cache_size = data; + /* Round data cache size to multiple of 256 bytes. */ + data = data & ~255L; __x86_64_data_cache_size_half = data / 2; __x86_64_data_cache_size = data; } if (shared > 0) { + __x86_64_raw_shared_cache_size_half = shared / 2; + __x86_64_raw_shared_cache_size = shared; + /* Round shared cache size to multiple of 256 bytes. */ + shared = shared & ~255L; __x86_64_shared_cache_size_half = shared / 2; __x86_64_shared_cache_size = shared; } |