diff options
| author | Srinivasan Shanmugam <srinivasan.shanmugam@amd.com> | 2024-05-27 05:00:47 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-08-21 05:06:52 +0300 |
| commit | e189be9b2e3820c88164d95090f1fd6343cd77fc (patch) | |
| tree | 2cfc23344de8ad16d391d22fdbf2075e23f14473 /drivers/gpu/drm/amd/amdgpu/amdgpu.h | |
| parent | dba1a6cfc311833e10df978f07147ea93b7045fa (diff) | |
| download | linux-e189be9b2e3820c88164d95090f1fd6343cd77fc.tar.xz | |
drm/amdgpu: Add enforce_isolation sysfs attribute
This commit adds a new sysfs attribute 'enforce_isolation' to control
the 'enforce_isolation' setting per GPU. The attribute can be read and
written, and accepts values 0 (disabled) and 1 (enabled).
When 'enforce_isolation' is enabled, reserved VMIDs are allocated for
each ring. When it's disabled, the reserved VMIDs are freed.
The set function locks a mutex before changing the 'enforce_isolation'
flag and the VMIDs, and unlocks it afterwards. This ensures that these
operations are atomic and prevents race conditions and other concurrency
issues.
Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Suggested-by: Alex Deucher <alexander.deucher@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 | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 0dceeea235cf..aa97bbefe934 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -1164,6 +1164,8 @@ struct amdgpu_device { bool debug_enable_ras_aca; bool enforce_isolation[MAX_XCP]; + /* Added this mutex for cleaner shader isolation between GFX and compute processes */ + struct mutex enforce_isolation_mutex; }; static inline uint32_t amdgpu_ip_version(const struct amdgpu_device *adev, |