diff options
| author | Andi Kleen <ak@suse.de> | 2007-07-21 17:10:03 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-21 18:37:08 -0700 |
| commit | 67cddd947992b02f01ad093ec814738c5827d17c (patch) | |
| tree | 5c10c3a1f645c119e0cc23ecdfc7c3c4dd7eacad /arch/i386/kernel/cpu/amd.c | |
| parent | 2aae950b21e4bc789d1fc6668faf67e8748300b7 (diff) | |
i386: Add L3 cache support to AMD CPUID4 emulation
With that an L3 cache is correctly reported in the cache information in /sys
With fixes from Andreas Herrmann and Dean Gaudet and Joachim Deguara
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/i386/kernel/cpu/amd.c')
| -rw-r--r-- | arch/i386/kernel/cpu/amd.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/i386/kernel/cpu/amd.c b/arch/i386/kernel/cpu/amd.c index 6f47eeeb93ea..815a5f0aa474 100644 --- a/arch/i386/kernel/cpu/amd.c +++ b/arch/i386/kernel/cpu/amd.c @@ -272,8 +272,12 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c) } #endif - if (cpuid_eax(0x80000000) >= 0x80000006) - num_cache_leaves = 3; + if (cpuid_eax(0x80000000) >= 0x80000006) { + if ((c->x86 == 0x10) && (cpuid_edx(0x80000006) & 0xf000)) + num_cache_leaves = 4; + else + num_cache_leaves = 3; + } if (amd_apic_timer_broken()) set_bit(X86_FEATURE_LAPIC_TIMER_BROKEN, c->x86_capability); |