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drm/amd: add scheduler fence implementation (v2)

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scheduler fence is based on kernel fence framework.

v2: squash in Christian's build fix

Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian K?nig <christian.koenig@amd.com>
This commit is contained in:
Chunming Zhou 2015-08-02 11:18:04 +08:00 • committed by Alex Deucher
parent 4af9f07ccd
commit f556cb0cae
9 changed files with 202 additions and 38 deletions
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34
drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c
View file

@ -118,7 +118,6 @@ int amdgpu_sched_ib_submit_kernel_helper(struct amdgpu_device *adev,
{
int r = 0;
if (amdgpu_enable_scheduler) {
uint64_t v_seq;
struct amdgpu_cs_parser *sched_job =
amdgpu_cs_parser_create(adev, owner, &adev->kernel_ctx,
ibs, num_ibs);
@ -126,22 +125,23 @@ int amdgpu_sched_ib_submit_kernel_helper(struct amdgpu_device *adev,
return -ENOMEM;
}
sched_job->free_job = free_job;
v_seq = atomic64_inc_return(&adev->kernel_ctx.rings[ring->idx].entity.last_queued_v_seq);
ibs[num_ibs - 1].sequence = v_seq;
amd_sched_push_job(ring->scheduler,
&adev->kernel_ctx.rings[ring->idx].entity,
sched_job);
r = amd_sched_wait_emit(
&adev->kernel_ctx.rings[ring->idx].entity,
v_seq,
false,
-1);
if (r)
WARN(true, "emit timeout\n");
} else
mutex_lock(&sched_job->job_lock);
r = amd_sched_push_job(ring->scheduler,
&adev->kernel_ctx.rings[ring->idx].entity,
sched_job, &sched_job->s_fence);
if (r) {
mutex_unlock(&sched_job->job_lock);
kfree(sched_job);
return r;
}
ibs[num_ibs - 1].sequence = sched_job->s_fence->v_seq;
*f = &sched_job->s_fence->base;
mutex_unlock(&sched_job->job_lock);
} else {
r = amdgpu_ib_schedule(adev, num_ibs, ibs, owner);
if (r)
return r;
*f = &ibs[num_ibs - 1].fence->base;
if (r)
return r;
*f = &ibs[num_ibs - 1].fence->base;
}
return 0;
}