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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 /include/uapi | |
| parent | c23be4ae1d50e8d93f805de7ae3e8ea49a4ad781 (diff) | |
| download | linux-next-52c6a62c64fac03a434cdacf6ef671c6a9e9000f.tar.gz | |
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 'include/uapi')
| -rw-r--r-- | include/uapi/drm/amdgpu_drm.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h index 7ea33b57893a..a332de1aeb42 100644 --- a/include/uapi/drm/amdgpu_drm.h +++ b/include/uapi/drm/amdgpu_drm.h @@ -53,6 +53,7 @@ extern "C" { #define DRM_AMDGPU_WAIT_FENCES 0x12 #define DRM_AMDGPU_VM 0x13 #define DRM_AMDGPU_FENCE_TO_HANDLE 0x14 +#define DRM_AMDGPU_SCHED 0x15 #define DRM_IOCTL_AMDGPU_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_GEM_CREATE, union drm_amdgpu_gem_create) #define DRM_IOCTL_AMDGPU_GEM_MMAP DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_GEM_MMAP, union drm_amdgpu_gem_mmap) @@ -69,6 +70,7 @@ extern "C" { #define DRM_IOCTL_AMDGPU_WAIT_FENCES DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_WAIT_FENCES, union drm_amdgpu_wait_fences) #define DRM_IOCTL_AMDGPU_VM DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_VM, union drm_amdgpu_vm) #define DRM_IOCTL_AMDGPU_FENCE_TO_HANDLE DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_FENCE_TO_HANDLE, union drm_amdgpu_fence_to_handle) +#define DRM_IOCTL_AMDGPU_SCHED DRM_IOW(DRM_COMMAND_BASE + DRM_AMDGPU_SCHED, union drm_amdgpu_sched) #define AMDGPU_GEM_DOMAIN_CPU 0x1 #define AMDGPU_GEM_DOMAIN_GTT 0x2 @@ -227,6 +229,21 @@ union drm_amdgpu_vm { struct drm_amdgpu_vm_out out; }; +/* sched ioctl */ +#define AMDGPU_SCHED_OP_PROCESS_PRIORITY_OVERRIDE 1 + +struct drm_amdgpu_sched_in { + /* AMDGPU_SCHED_OP_* */ + __u32 op; + __u32 fd; + __s32 priority; + __u32 flags; +}; + +union drm_amdgpu_sched { + struct drm_amdgpu_sched_in in; +}; + /* * This is not a reliable API and you should expect it to fail for any * number of reasons and have fallback path that do not use userptr to |