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| author | Graham Sider <Graham.Sider@amd.com> | 2023-02-06 14:04:42 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-06-09 09:59:03 -0400 |
| commit | 895797d9193b38e759bc01268a8e3887e521f682 (patch) | |
| tree | 73797e8e8d06b8cbe881acb0ecd593d5ff85a805 /drivers/gpu/drm/amd/amdgpu/amdgpu.h | |
| parent | 2e8cc5d317d12f7fb4f66361a3ce5427f0abe2cd (diff) | |
drm/amdgpu/bu: Add use_mtype_cc_wa module param
By default, set use_mtype_cc_wa to 1 to set PTE coherence flag MTYPE_CC
instead of MTYPE_RW by default. This is required for the time being to
mitigate a bug causing XCCs to hit stale data due to TCC marking fully
dirty lines as exclusive.
Signed-off-by: Graham Sider <Graham.Sider@amd.com>
Reviewed-by: Joseph Greathouse <Joseph.Greathouse@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index cb9373f8c25a..cd2a29a7e26d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -212,6 +212,7 @@ extern int amdgpu_noretry; extern int amdgpu_force_asic_type; extern int amdgpu_smartshift_bias; extern int amdgpu_use_xgmi_p2p; +extern bool amdgpu_use_mtype_cc_wa; #ifdef CONFIG_HSA_AMD extern int sched_policy; extern bool debug_evictions; |