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drm/amdgpu: make amdgpu_to_sched_priority detect invalid parameters

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Returning invalid priorities as _NORMAL is a backwards compatibility
quirk of amdgpu_ctx_ioctl(). Move this detail one layer up where it
belongs.

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>
This commit is contained in:
Andres Rodriguez 2017-05-24 17:00:10 -04:00 committed by Alex Deucher
parent b8866c26ec
commit b6d8a43934
2 changed files with 7 additions and 4 deletions
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8
drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
View file

@ -232,7 +232,7 @@ static enum amd_sched_priority amdgpu_to_sched_priority(int amdgpu_priority)
return AMD_SCHED_PRIORITY_LOW;
default:
WARN(1, "Invalid context priority %d\n", amdgpu_priority);
return AMD_SCHED_PRIORITY_NORMAL;
return AMD_SCHED_PRIORITY_INVALID;
}
}
@ -251,8 +251,10 @@ int amdgpu_ctx_ioctl(struct drm_device *dev, void *data,
id = args->in.ctx_id;
priority = amdgpu_to_sched_priority(args->in.priority);
if (priority >= AMD_SCHED_PRIORITY_MAX)
return -EINVAL;
/* For backwards compatibility reasons, we need to accept
* ioctls with garbage in the priority field */
if (priority == AMD_SCHED_PRIORITY_INVALID)
priority = AMD_SCHED_PRIORITY_NORMAL;
switch (args->in.op) {
case AMDGPU_CTX_OP_ALLOC_CTX:

3
drivers/gpu/drm/amd/scheduler/gpu_scheduler.h
View file

@ -120,7 +120,8 @@ enum amd_sched_priority {
AMD_SCHED_PRIORITY_HIGH_SW,
AMD_SCHED_PRIORITY_HIGH_HW,
AMD_SCHED_PRIORITY_KERNEL,
AMD_SCHED_PRIORITY_MAX
AMD_SCHED_PRIORITY_MAX,
AMD_SCHED_PRIORITY_INVALID = -1
};
/**