On Fri, 14 Oct 2022 at 09:47, Christian König
<ckoenig.leichtzumerken@xxxxxxxxx> wrote:
>
> Entirely remove the sync obj in the job.
>
> Signed-off-by: Christian König <christian.koenig@xxxxxxx>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 21 ++++++++++-----------
> drivers/gpu/drm/amd/amdgpu/amdgpu_cs.h | 2 ++
> drivers/gpu/drm/amd/amdgpu/amdgpu_job.c | 9 +--------
> drivers/gpu/drm/amd/amdgpu/amdgpu_job.h | 1 -
> 4 files changed, 13 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> index d45b86bcf7fa..0528c2b1db6e 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> @@ -426,7 +426,7 @@ static int amdgpu_cs_p2_dependencies(struct amdgpu_cs_parser *p,
> dma_fence_put(old);
> }
>
> - r = amdgpu_sync_fence(&p->gang_leader->sync, fence);
> + r = amdgpu_sync_fence(&p->sync, fence);
> dma_fence_put(fence);
> if (r)
> return r;
> @@ -448,7 +448,7 @@ static int amdgpu_syncobj_lookup_and_add(struct amdgpu_cs_parser *p,
> return r;
> }
>
> - r = amdgpu_sync_fence(&p->gang_leader->sync, fence);
> + r = amdgpu_sync_fence(&p->sync, fence);
> if (r)
> goto error;
>
> @@ -1108,7 +1108,7 @@ static int amdgpu_cs_vm_handling(struct amdgpu_cs_parser *p)
> if (r)
> return r;
>
> - r = amdgpu_sync_fence(&job->sync, fpriv->prt_va->last_pt_update);
> + r = amdgpu_sync_fence(&p->sync, fpriv->prt_va->last_pt_update);
> if (r)
> return r;
>
> @@ -1119,7 +1119,7 @@ static int amdgpu_cs_vm_handling(struct amdgpu_cs_parser *p)
> if (r)
> return r;
>
> - r = amdgpu_sync_fence(&job->sync, bo_va->last_pt_update);
> + r = amdgpu_sync_fence(&p->sync, bo_va->last_pt_update);
> if (r)
> return r;
> }
> @@ -1138,7 +1138,7 @@ static int amdgpu_cs_vm_handling(struct amdgpu_cs_parser *p)
> if (r)
> return r;
>
> - r = amdgpu_sync_fence(&job->sync, bo_va->last_pt_update);
> + r = amdgpu_sync_fence(&p->sync, bo_va->last_pt_update);
> if (r)
> return r;
> }
> @@ -1151,7 +1151,7 @@ static int amdgpu_cs_vm_handling(struct amdgpu_cs_parser *p)
> if (r)
> return r;
>
> - r = amdgpu_sync_fence(&job->sync, vm->last_update);
> + r = amdgpu_sync_fence(&p->sync, vm->last_update);
> if (r)
> return r;
>
> @@ -1183,7 +1183,6 @@ static int amdgpu_cs_vm_handling(struct amdgpu_cs_parser *p)
> static int amdgpu_cs_sync_rings(struct amdgpu_cs_parser *p)
> {
> struct amdgpu_fpriv *fpriv = p->filp->driver_priv;
> - struct amdgpu_job *leader = p->gang_leader;
> struct amdgpu_bo_list_entry *e;
> unsigned int i;
> int r;
> @@ -1195,14 +1194,14 @@ static int amdgpu_cs_sync_rings(struct amdgpu_cs_parser *p)
>
> sync_mode = amdgpu_bo_explicit_sync(bo) ?
> AMDGPU_SYNC_EXPLICIT : AMDGPU_SYNC_NE_OWNER;
> - r = amdgpu_sync_resv(p->adev, &leader->sync, resv, sync_mode,
> + r = amdgpu_sync_resv(p->adev, &p->sync, resv, sync_mode,
> &fpriv->vm);
> if (r)
> return r;
> }
>
> - for (i = 0; i < p->gang_size - 1; ++i) {
> - r = amdgpu_sync_clone(&leader->sync, &p->jobs[i]->sync);
> + for (i = 0; i < p->gang_size; ++i) {
> + r = amdgpu_sync_push_to_job(&p->sync, p->jobs[i]);
> if (r)
> return r;
> }
> @@ -1248,7 +1247,7 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
> struct dma_fence *fence;
>
> fence = &p->jobs[i]->base.s_fence->scheduled;
> - r = amdgpu_sync_fence(&leader->sync, fence);
> + r = drm_sched_job_add_dependency(&leader->base, fence);
> if (r)
> goto error_cleanup;
> }
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.h
> index cbaa19b2b8a3..207e801c24ed 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.h
> @@ -75,6 +75,8 @@ struct amdgpu_cs_parser {
>
> unsigned num_post_deps;
> struct amdgpu_cs_post_dep *post_deps;
> +
> + struct amdgpu_sync sync;
> };
>
> int amdgpu_cs_find_mapping(struct amdgpu_cs_parser *parser,
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
> index ba98d65835b4..b8494c3b3b8a 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
> @@ -106,7 +106,6 @@ int amdgpu_job_alloc(struct amdgpu_device *adev, struct amdgpu_vm *vm,
> (*job)->base.sched = &adev->rings[0]->sched;
> (*job)->vm = vm;
>
> - amdgpu_sync_create(&(*job)->sync);
> amdgpu_sync_create(&(*job)->explicit_sync);
> (*job)->vram_lost_counter = atomic_read(&adev->vram_lost_counter);
> (*job)->vm_pd_addr = AMDGPU_BO_INVALID_OFFSET;
> @@ -174,9 +173,7 @@ static void amdgpu_job_free_cb(struct drm_sched_job *s_job)
>
> drm_sched_job_cleanup(s_job);
>
> - amdgpu_sync_free(&job->sync);
> amdgpu_sync_free(&job->explicit_sync);
> -
> dma_fence_put(&job->hw_fence);
> }
>
> @@ -202,7 +199,6 @@ void amdgpu_job_free(struct amdgpu_job *job)
> drm_sched_job_cleanup(&job->base);
>
> amdgpu_job_free_resources(job);
> - amdgpu_sync_free(&job->sync);
> amdgpu_sync_free(&job->explicit_sync);
> if (job->gang_submit != &job->base.s_fence->scheduled)
> dma_fence_put(job->gang_submit);
> @@ -246,10 +242,9 @@ amdgpu_job_dependency(struct drm_sched_job *sched_job,
> {
> struct amdgpu_ring *ring = to_amdgpu_ring(s_entity->rq->sched);
> struct amdgpu_job *job = to_amdgpu_job(sched_job);
> - struct dma_fence *fence;
> + struct dma_fence *fence = NULL;
> int r;
>
> - fence = amdgpu_sync_get_fence(&job->sync);
> while (fence == NULL && job->vm && !job->vmid) {
> r = amdgpu_vmid_grab(job->vm, ring, job, &fence);
> if (r)
> @@ -273,8 +268,6 @@ static struct dma_fence *amdgpu_job_run(struct drm_sched_job *sched_job)
> job = to_amdgpu_job(sched_job);
> finished = &job->base.s_fence->finished;
>
> - BUG_ON(amdgpu_sync_peek_fence(&job->sync, NULL));
> -
> trace_amdgpu_sched_run_job(job);
>
> /* Skip job if VRAM is lost and never resubmit gangs */
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
> index 9c10b9bd0084..6558839fda03 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
> @@ -47,7 +47,6 @@ enum amdgpu_ib_pool_type;
> struct amdgpu_job {
> struct drm_sched_job base;
> struct amdgpu_vm *vm;
> - struct amdgpu_sync sync;
> struct amdgpu_sync explicit_sync;
> struct dma_fence hw_fence;
> struct dma_fence *gang_submit;
> --
> 2.25.1
>
Hi, I've been testing the Mesh shader benchmark in GravityMark and
I've bisected my laptop freezing up and rebooting, to this commit
1728baa7e4e60054bf13dd9b1212d133cbd53b3f is the first bad commit
commit 1728baa7e4e60054bf13dd9b1212d133cbd53b3f
Author: Christian König <christian.koenig@xxxxxxx>
Date: Thu Sep 29 14:04:01 2022 +0200
drm/amdgpu: use scheduler dependencies for CS
Entirely remove the sync obj in the job.
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
Reviewed-by: Luben Tuikov <luben.tuikov@xxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20221014084641.128280-11-christian.koenig@xxxxxxx
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 21 ++++++++++-----------
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.h | 2 ++
drivers/gpu/drm/amd/amdgpu/amdgpu_job.c | 9 +--------
drivers/gpu/drm/amd/amdgpu/amdgpu_job.h | 1 -
4 files changed, 13 insertions(+), 20 deletions(-)
This is on a prime system 6800M with the latest mesa
I tried reverting this patch however it didn't revert cleanly, and my
attempt doesn't work and only partially freezes up the system
Would you like me to open a bug for this on
https://gitlab.freedesktop.org/drm/amd/-/issues ?
Cheers
Mike
