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authorJack Xiao <Jack.Xiao@amd.com>2020-07-10 12:34:52 +0800
committerAlex Deucher <alexander.deucher@amd.com>2020-07-14 15:09:07 -0400
commitd845a2051b6b673fab4229b920ea04c7c4352b51 (patch)
treed062b81cf986144e019c8e95ce506ceb0f55a45d /drivers/gpu/drm
parent7d65a577bb58d4f27a3398a4c0cb0b00ab7d0511 (diff)
drm/amdgpu: fix preemption unit test
Remove signaled jobs from job list and ensure the job was indeed preempted. Signed-off-by: Jack Xiao <Jack.Xiao@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c20
1 files changed, 15 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index d33cb344be69..a414da22a359 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -1295,27 +1295,37 @@ static void amdgpu_ib_preempt_job_recovery(struct drm_gpu_scheduler *sched)
static void amdgpu_ib_preempt_mark_partial_job(struct amdgpu_ring *ring)
{
struct amdgpu_job *job;
- struct drm_sched_job *s_job;
+ struct drm_sched_job *s_job, *tmp;
uint32_t preempt_seq;
struct dma_fence *fence, **ptr;
struct amdgpu_fence_driver *drv = &ring->fence_drv;
struct drm_gpu_scheduler *sched = &ring->sched;
+ bool preempted = true;
if (ring->funcs->type != AMDGPU_RING_TYPE_GFX)
return;
preempt_seq = le32_to_cpu(*(drv->cpu_addr + 2));
- if (preempt_seq <= atomic_read(&drv->last_seq))
- return;
+ if (preempt_seq <= atomic_read(&drv->last_seq)) {
+ preempted = false;
+ goto no_preempt;
+ }
preempt_seq &= drv->num_fences_mask;
ptr = &drv->fences[preempt_seq];
fence = rcu_dereference_protected(*ptr, 1);
+no_preempt:
spin_lock(&sched->job_list_lock);
- list_for_each_entry(s_job, &sched->ring_mirror_list, node) {
+ list_for_each_entry_safe(s_job, tmp, &sched->ring_mirror_list, node) {
+ if (dma_fence_is_signaled(&s_job->s_fence->finished)) {
+ /* remove job from ring_mirror_list */
+ list_del_init(&s_job->node);
+ sched->ops->free_job(s_job);
+ continue;
+ }
job = to_amdgpu_job(s_job);
- if (job->fence == fence)
+ if (preempted && job->fence == fence)
/* mark the job as preempted */
job->preemption_status |= AMDGPU_IB_PREEMPTED;
}