On Thu, Jul 19, 2007 at 11:55:02AM +0200, Andi Kleen wrote:
>
> With that an L3 cache is correctly reported in the cache information in /sys
>
> With fixes from Andreas Herrmann and Dean Gaudet
>
> Signed-off-by: Andi Kleen <[email protected]>
>
> ---
> arch/i386/kernel/cpu/intel_cacheinfo.c | 74 ++++++++++++++++++++++++---------
> arch/x86_64/kernel/setup.c | 7 ++-
> 2 files changed, 60 insertions(+), 21 deletions(-)
Reporting of L3 cache information should also be enabled in 32bit mode.
Regards,
Andreas
--
Enable reporting of L3 cache info in 32 bit mode for family 0x10.
Signed-off-by: Andreas Herrmann <[email protected]>
diff --git a/arch/i386/kernel/cpu/amd.c b/arch/i386/kernel/cpu/amd.c
index 6f47eee..815a5f0 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);
-
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