diff options
| author | Andi Kleen | 2007-07-21 17:10:03 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2007-07-22 03:37:08 +0200 |
| commit | 67cddd947992b02f01ad093ec814738c5827d17c (patch) | |
| tree | 5c10c3a1f645c119e0cc23ecdfc7c3c4dd7eacad /arch/x86_64/kernel/setup.c | |
| parent | x86_64: Add vDSO for x86-64 with gettimeofday/clock_gettime/getcpu (diff) | |
| download | kernel-qcow2-linux-67cddd947992b02f01ad093ec814738c5827d17c.tar.gz kernel-qcow2-linux-67cddd947992b02f01ad093ec814738c5827d17c.tar.xz kernel-qcow2-linux-67cddd947992b02f01ad093ec814738c5827d17c.zip | |
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/x86_64/kernel/setup.c')
| -rw-r--r-- | arch/x86_64/kernel/setup.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c index 675b3d6de10b..6fa0a302e2aa 100644 --- a/arch/x86_64/kernel/setup.c +++ b/arch/x86_64/kernel/setup.c @@ -602,8 +602,11 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c) if (c->extended_cpuid_level >= 0x80000008) amd_detect_cmp(c); - /* Fix cpuid4 emulation for more */ - num_cache_leaves = 3; + if (c->extended_cpuid_level >= 0x80000006 && + (cpuid_edx(0x80000006) & 0xf000)) + num_cache_leaves = 4; + else + num_cache_leaves = 3; /* RDTSC can be speculated around */ clear_bit(X86_FEATURE_SYNC_RDTSC, &c->x86_capability); |