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| author | Srinivasan Shanmugam <srinivasan.shanmugam@amd.com> | 2024-05-27 04:00:47 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-08-21 04:06:52 +0200 |
| commit | e189be9b2e3820c88164d95090f1fd6343cd77fc (patch) | |
| tree | 2cfc23344de8ad16d391d22fdbf2075e23f14473 /drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h | |
| parent | drm/amdgpu: Enforce isolation as part of the job (diff) | |
| download | linux-e189be9b2e3820c88164d95090f1fd6343cd77fc.tar.xz linux-e189be9b2e3820c88164d95090f1fd6343cd77fc.zip | |
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_gfx.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h index 09379ef7388f..f7b37c340e36 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h @@ -561,6 +561,8 @@ void amdgpu_gfx_cleaner_shader_sw_fini(struct amdgpu_device *adev); void amdgpu_gfx_cleaner_shader_init(struct amdgpu_device *adev, unsigned int cleaner_shader_size, const void *cleaner_shader_ptr); +int amdgpu_gfx_sysfs_isolation_shader_init(struct amdgpu_device *adev); +void amdgpu_gfx_sysfs_isolation_shader_fini(struct amdgpu_device *adev); static inline const char *amdgpu_gfx_compute_mode_desc(int mode) { |