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drm/amdgpu: Add command to override the context priority.

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Given a master fd we can then override the priority of the context
in another fd.

Using these overrides was recommended by Christian instead of trying
to submit from a master fd, and I am adding a way to override a
single context instead of the entire process so we can only upgrade
a single Vulkan queue and not effectively the entire process.

Reused the flags field as it was checked to be 0 anyways, so nothing
used it. This is source-incompatible (due to the name change), but
ABI compatible.

Signed-off-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Bas Nieuwenhuizen
2019-01-30 02:53:22 +01:00
committed by Alex Deucher
parent 021830d24b
commit b5bb37eddb
2 changed files with 42 additions and 2 deletions
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3
include/uapi/drm/amdgpu_drm.h
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@@ -272,13 +272,14 @@ union drm_amdgpu_vm {
/* sched ioctl */
#define AMDGPU_SCHED_OP_PROCESS_PRIORITY_OVERRIDE 1
#define AMDGPU_SCHED_OP_CONTEXT_PRIORITY_OVERRIDE 2
struct drm_amdgpu_sched_in {
/* AMDGPU_SCHED_OP_* */
__u32 op;
__u32 fd;
__s32 priority;
__u32 flags;
__u32 ctx_id;
};
union drm_amdgpu_sched {