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| author | Andres Rodriguez <andresx7@gmail.com> | 2017-06-26 16:17:13 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-10-09 16:30:24 -0400 |
| commit | 52c6a62c64fac03a434cdacf6ef671c6a9e9000f (patch) | |
| tree | ff79a90d966d6eeeccee08fdc93d428c8e4553d5 /drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c | |
| parent | c23be4ae1d50e8d93f805de7ae3e8ea49a4ad781 (diff) | |
| download | linux-52c6a62c64fac03a434cdacf6ef671c6a9e9000f.tar.bz2 | |
drm/amdgpu: add interface for editing a foreign process's priority v3
The AMDGPU_SCHED_OP_PROCESS_PRIORITY_OVERRIDE ioctls are used to set
the priority of a different process in the current system.
When a request is dropped, the process's contexts will be
restored to the priority specified at context creation time.
A request can be dropped by setting the override priority to
AMDGPU_CTX_PRIORITY_UNSET.
An fd is used to identify the remote process. This is simpler than
passing a pid number, which is vulnerable to re-use, etc.
This functionality is limited to DRM_MASTER since abuse of this
interface can have a negative impact on the system's performance.
v2: removed unused output structure
v3: change refcounted interface for a regular set operation
Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c | 21 |
1 files changed, 1 insertions, 20 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c index d2ef24f4b56d..a78b03f65c69 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c @@ -25,6 +25,7 @@ #include <drm/drmP.h> #include <drm/drm_auth.h> #include "amdgpu.h" +#include "amdgpu_sched.h" static int amdgpu_ctx_priority_permit(struct drm_file *filp, enum amd_sched_priority priority) @@ -220,26 +221,6 @@ static int amdgpu_ctx_query(struct amdgpu_device *adev, return 0; } -static enum amd_sched_priority amdgpu_to_sched_priority(int amdgpu_priority) -{ - switch (amdgpu_priority) { - case AMDGPU_CTX_PRIORITY_HIGH_HW: - return AMD_SCHED_PRIORITY_HIGH_HW; - case AMDGPU_CTX_PRIORITY_HIGH_SW: - return AMD_SCHED_PRIORITY_HIGH_SW; - case AMDGPU_CTX_PRIORITY_NORMAL: - return AMD_SCHED_PRIORITY_NORMAL; - case AMDGPU_CTX_PRIORITY_LOW_SW: - case AMDGPU_CTX_PRIORITY_LOW_HW: - return AMD_SCHED_PRIORITY_LOW; - case AMDGPU_CTX_PRIORITY_UNSET: - return AMD_SCHED_PRIORITY_UNSET; - default: - WARN(1, "Invalid context priority %d\n", amdgpu_priority); - return AMD_SCHED_PRIORITY_INVALID; - } -} - int amdgpu_ctx_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) { |