Messages in this thread Patch in this message | | | Subject | [PATCH]cpuid.4 doesn't need cpu level 5 | From | Shaohua Li <> | Date | Tue, 07 Mar 2006 09:39:31 +0800 |
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Detecting cache line using cpuid.4, cpuid level 4 is enough.
Signed-off-by: Shaohua Li<shaohua.li@intel.com> ---
linux-2.6.16-rc5-root/arch/i386/kernel/cpu/intel_cacheinfo.c | 2 +- 1 files changed, 1 insertion(+), 1 deletion(-)
diff -puN arch/i386/kernel/cpu/intel_cacheinfo.c~cpuid4 arch/i386/kernel/cpu/intel_cacheinfo.c --- linux-2.6.16-rc5/arch/i386/kernel/cpu/intel_cacheinfo.c~cpuid4 2006-03-05 07:41:36.000000000 +0800 +++ linux-2.6.16-rc5-root/arch/i386/kernel/cpu/intel_cacheinfo.c 2006-03-05 07:42:45.000000000 +0800 @@ -174,7 +174,7 @@ unsigned int __cpuinit init_intel_cachei unsigned int new_l1d = 0, new_l1i = 0; /* Cache sizes from cpuid(4) */ unsigned int new_l2 = 0, new_l3 = 0, i; /* Cache sizes from cpuid(4) */ - if (c->cpuid_level > 4) { + if (c->cpuid_level > 3) { static int is_initialized; if (is_initialized == 0) { _
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