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| author | Ricardo Neri <[email protected]> | 2024-11-28 00:22:47 +0000 |
|---|---|---|
| committer | Borislav Petkov (AMD) <[email protected]> | 2024-12-06 12:13:36 +0000 |
| commit | 9677be09e5e4fbe48aeccb06ae3063c5eba331c3 (patch) | |
| tree | 9e9735ccba27a1b52093c49cb7d3e308157670b4 /drivers/gpu/drm/amd/amdgpu/amdgpu_object.h | |
| parent | cacheinfo: Allocate memory during CPU hotplug if not done from the primary CPU (diff) | |
| download | kernel-9677be09e5e4fbe48aeccb06ae3063c5eba331c3.tar.gz kernel-9677be09e5e4fbe48aeccb06ae3063c5eba331c3.zip | |
x86/cacheinfo: Delete global num_cache_leaves
Linux remembers cpu_cachinfo::num_leaves per CPU, but x86 initializes all
CPUs from the same global "num_cache_leaves".
This is erroneous on systems such as Meteor Lake, where each CPU has a
distinct num_leaves value. Delete the global "num_cache_leaves" and
initialize num_leaves on each CPU.
init_cache_level() no longer needs to set num_leaves. Also, it never had to
set num_levels as it is unnecessary in x86. Keep checking for zero cache
leaves. Such condition indicates a bug.
[ bp: Cleanup. ]
Signed-off-by: Ricardo Neri <[email protected]>
Signed-off-by: Borislav Petkov (AMD) <[email protected]>
Cc: [email protected] # 6.3+
Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.h')
0 files changed, 0 insertions, 0 deletions