[PATCH] drm/amdgpu: clean up and unify hw fence handling
Christian König
christian.koenig at amd.com
Thu Aug 28 14:29:06 UTC 2025
On 28.08.25 16:05, Alex Deucher wrote:
> Decouple the amdgpu fence from the amdgpu_job structure.
> This lets us clean up the separate fence ops for the embedded
> fence and other fences. This also allows us to allocate the
> vm fence up front when we allocate the job.
>
> Cc: David.Wu3 at amd.com
> Cc: christian.koenig at amd.com
> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
> ---
>
> v2: Additional cleanup suggested by Christian
>
> drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 2 +-
> drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 7 +-
> drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 140 ++------------------
> drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 22 +--
> drivers/gpu/drm/amd/amdgpu/amdgpu_job.c | 41 ++++--
> drivers/gpu/drm/amd/amdgpu/amdgpu_job.h | 3 +-
> drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 7 +-
> drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 7 +-
> 8 files changed, 64 insertions(+), 165 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
> index f81608330a3d0..7ea3cb6491b1b 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
> @@ -1902,7 +1902,7 @@ static void amdgpu_ib_preempt_mark_partial_job(struct amdgpu_ring *ring)
> continue;
> }
> job = to_amdgpu_job(s_job);
> - if (preempted && (&job->hw_fence.base) == fence)
> + if (preempted && (&job->hw_fence->base) == fence)
> /* mark the job as preempted */
> job->preemption_status |= AMDGPU_IB_PREEMPTED;
> }
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> index 7783272a79302..add272fa31288 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> @@ -5798,11 +5798,6 @@ int amdgpu_device_pre_asic_reset(struct amdgpu_device *adev,
> if (!amdgpu_ring_sched_ready(ring))
> continue;
>
> - /* Clear job fence from fence drv to avoid force_completion
> - * leave NULL and vm flush fence in fence drv
> - */
> - amdgpu_fence_driver_clear_job_fences(ring);
> -
> /* after all hw jobs are reset, hw fence is meaningless, so force_completion */
> amdgpu_fence_driver_force_completion(ring);
> }
> @@ -6526,7 +6521,7 @@ int amdgpu_device_gpu_recover(struct amdgpu_device *adev,
> *
> * job->base holds a reference to parent fence
> */
> - if (job && dma_fence_is_signaled(&job->hw_fence.base)) {
> + if (job && dma_fence_is_signaled(&job->hw_fence->base)) {
> job_signaled = true;
> dev_info(adev->dev, "Guilty job already signaled, skipping HW reset");
> goto skip_hw_reset;
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
> index 2d58aefbd68a7..1355fee0e978d 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
> @@ -45,16 +45,11 @@
> * Cast helper
> */
> static const struct dma_fence_ops amdgpu_fence_ops;
> -static const struct dma_fence_ops amdgpu_job_fence_ops;
> static inline struct amdgpu_fence *to_amdgpu_fence(struct dma_fence *f)
> {
> struct amdgpu_fence *__f = container_of(f, struct amdgpu_fence, base);
>
> - if (__f->base.ops == &amdgpu_fence_ops ||
> - __f->base.ops == &amdgpu_job_fence_ops)
> - return __f;
> -
> - return NULL;
> + return __f;
> }
>
> /**
> @@ -98,51 +93,33 @@ static u32 amdgpu_fence_read(struct amdgpu_ring *ring)
> * amdgpu_fence_emit - emit a fence on the requested ring
> *
> * @ring: ring the fence is associated with
> - * @f: resulting fence object
> * @af: amdgpu fence input
> * @flags: flags to pass into the subordinate .emit_fence() call
> *
> * Emits a fence command on the requested ring (all asics).
> * Returns 0 on success, -ENOMEM on failure.
> */
> -int amdgpu_fence_emit(struct amdgpu_ring *ring, struct dma_fence **f,
> - struct amdgpu_fence *af, unsigned int flags)
> +int amdgpu_fence_emit(struct amdgpu_ring *ring, struct amdgpu_fence *af,
> + unsigned int flags)
> {
> struct amdgpu_device *adev = ring->adev;
> struct dma_fence *fence;
> - struct amdgpu_fence *am_fence;
> struct dma_fence __rcu **ptr;
> uint32_t seq;
> int r;
>
> - if (!af) {
> - /* create a separate hw fence */
> - am_fence = kzalloc(sizeof(*am_fence), GFP_KERNEL);
> - if (!am_fence)
> - return -ENOMEM;
> - } else {
> - am_fence = af;
> - }
> - fence = &am_fence->base;
> - am_fence->ring = ring;
> + fence = &af->base;
> + af->ring = ring;
>
> seq = ++ring->fence_drv.sync_seq;
> - am_fence->seq = seq;
> - if (af) {
> - dma_fence_init(fence, &amdgpu_job_fence_ops,
> - &ring->fence_drv.lock,
> - adev->fence_context + ring->idx, seq);
> - /* Against remove in amdgpu_job_{free, free_cb} */
> - dma_fence_get(fence);
> - } else {
> - dma_fence_init(fence, &amdgpu_fence_ops,
> - &ring->fence_drv.lock,
> - adev->fence_context + ring->idx, seq);
> - }
> + af->seq = seq;
Why we have af->seq in the first place? That is identical to af->base.seq as far as I can see.
> + dma_fence_init(fence, &amdgpu_fence_ops,
> + &ring->fence_drv.lock,
> + adev->fence_context + ring->idx, seq);
>
> amdgpu_ring_emit_fence(ring, ring->fence_drv.gpu_addr,
> seq, flags | AMDGPU_FENCE_FLAG_INT);
> - amdgpu_fence_save_wptr(fence);
> + amdgpu_fence_save_wptr(af);
> pm_runtime_get_noresume(adev_to_drm(adev)->dev);
> ptr = &ring->fence_drv.fences[seq & ring->fence_drv.num_fences_mask];
> if (unlikely(rcu_dereference_protected(*ptr, 1))) {
> @@ -167,8 +144,6 @@ int amdgpu_fence_emit(struct amdgpu_ring *ring, struct dma_fence **f,
> */
> rcu_assign_pointer(*ptr, dma_fence_get(fence));
>
> - *f = fence;
> -
> return 0;
> }
>
> @@ -669,36 +644,6 @@ void amdgpu_fence_driver_hw_init(struct amdgpu_device *adev)
> }
> }
>
> -/**
> - * amdgpu_fence_driver_clear_job_fences - clear job embedded fences of ring
> - *
> - * @ring: fence of the ring to be cleared
> - *
> - */
> -void amdgpu_fence_driver_clear_job_fences(struct amdgpu_ring *ring)
> -{
> - int i;
> - struct dma_fence *old, **ptr;
> -
> - for (i = 0; i <= ring->fence_drv.num_fences_mask; i++) {
> - ptr = &ring->fence_drv.fences[i];
> - old = rcu_dereference_protected(*ptr, 1);
> - if (old && old->ops == &amdgpu_job_fence_ops) {
> - struct amdgpu_job *job;
> -
> - /* For non-scheduler bad job, i.e. failed ib test, we need to signal
> - * it right here or we won't be able to track them in fence_drv
> - * and they will remain unsignaled during sa_bo free.
> - */
> - job = container_of(old, struct amdgpu_job, hw_fence.base);
> - if (!job->base.s_fence && !dma_fence_is_signaled(old))
> - dma_fence_signal(old);
> - RCU_INIT_POINTER(*ptr, NULL);
> - dma_fence_put(old);
> - }
> - }
> -}
> -
> /**
> * amdgpu_fence_driver_set_error - set error code on fences
> * @ring: the ring which contains the fences
> @@ -765,11 +710,9 @@ void amdgpu_fence_driver_guilty_force_completion(struct amdgpu_fence *fence)
> amdgpu_fence_process(fence->ring);
> }
>
> -void amdgpu_fence_save_wptr(struct dma_fence *fence)
> +void amdgpu_fence_save_wptr(struct amdgpu_fence *af)
> {
> - struct amdgpu_fence *am_fence = container_of(fence, struct amdgpu_fence, base);
> -
> - am_fence->wptr = am_fence->ring->wptr;
> + af->wptr = af->ring->wptr;
> }
>
> static void amdgpu_ring_backup_unprocessed_command(struct amdgpu_ring *ring,
> @@ -830,13 +773,6 @@ static const char *amdgpu_fence_get_timeline_name(struct dma_fence *f)
> return (const char *)to_amdgpu_fence(f)->ring->name;
> }
>
> -static const char *amdgpu_job_fence_get_timeline_name(struct dma_fence *f)
> -{
> - struct amdgpu_job *job = container_of(f, struct amdgpu_job, hw_fence.base);
> -
> - return (const char *)to_amdgpu_ring(job->base.sched)->name;
> -}
> -
> /**
> * amdgpu_fence_enable_signaling - enable signalling on fence
> * @f: fence
> @@ -853,23 +789,6 @@ static bool amdgpu_fence_enable_signaling(struct dma_fence *f)
> return true;
> }
>
> -/**
> - * amdgpu_job_fence_enable_signaling - enable signalling on job fence
> - * @f: fence
> - *
> - * This is the simliar function with amdgpu_fence_enable_signaling above, it
> - * only handles the job embedded fence.
> - */
> -static bool amdgpu_job_fence_enable_signaling(struct dma_fence *f)
> -{
> - struct amdgpu_job *job = container_of(f, struct amdgpu_job, hw_fence.base);
> -
> - if (!timer_pending(&to_amdgpu_ring(job->base.sched)->fence_drv.fallback_timer))
> - amdgpu_fence_schedule_fallback(to_amdgpu_ring(job->base.sched));
> -
> - return true;
> -}
> -
> /**
> * amdgpu_fence_free - free up the fence memory
> *
> @@ -885,21 +804,6 @@ static void amdgpu_fence_free(struct rcu_head *rcu)
> kfree(to_amdgpu_fence(f));
> }
>
> -/**
> - * amdgpu_job_fence_free - free up the job with embedded fence
> - *
> - * @rcu: RCU callback head
> - *
> - * Free up the job with embedded fence after the RCU grace period.
> - */
> -static void amdgpu_job_fence_free(struct rcu_head *rcu)
> -{
> - struct dma_fence *f = container_of(rcu, struct dma_fence, rcu);
> -
> - /* free job if fence has a parent job */
> - kfree(container_of(f, struct amdgpu_job, hw_fence.base));
> -}
> -
> /**
> * amdgpu_fence_release - callback that fence can be freed
> *
> @@ -913,19 +817,6 @@ static void amdgpu_fence_release(struct dma_fence *f)
> call_rcu(&f->rcu, amdgpu_fence_free);
> }
>
> -/**
> - * amdgpu_job_fence_release - callback that job embedded fence can be freed
> - *
> - * @f: fence
> - *
> - * This is the simliar function with amdgpu_fence_release above, it
> - * only handles the job embedded fence.
> - */
> -static void amdgpu_job_fence_release(struct dma_fence *f)
> -{
> - call_rcu(&f->rcu, amdgpu_job_fence_free);
> -}
> -
> static const struct dma_fence_ops amdgpu_fence_ops = {
> .get_driver_name = amdgpu_fence_get_driver_name,
> .get_timeline_name = amdgpu_fence_get_timeline_name,
> @@ -933,13 +824,6 @@ static const struct dma_fence_ops amdgpu_fence_ops = {
> .release = amdgpu_fence_release,
> };
>
> -static const struct dma_fence_ops amdgpu_job_fence_ops = {
> - .get_driver_name = amdgpu_fence_get_driver_name,
> - .get_timeline_name = amdgpu_job_fence_get_timeline_name,
> - .enable_signaling = amdgpu_job_fence_enable_signaling,
> - .release = amdgpu_job_fence_release,
> -};
> -
> /*
> * Fence debugfs
> */
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
> index 7d9bcb72e8dd3..71215aeb1b6f5 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
> @@ -128,7 +128,7 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned int num_ibs,
> struct amdgpu_device *adev = ring->adev;
> struct amdgpu_ib *ib = &ibs[0];
> struct dma_fence *tmp = NULL;
> - struct amdgpu_fence *af;
> + struct amdgpu_fence *af, *vm_af;
> bool need_ctx_switch;
> struct amdgpu_vm *vm;
> uint64_t fence_ctx;
> @@ -148,18 +148,20 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned int num_ibs,
> /* ring tests don't use a job */
> if (job) {
> vm = job->vm;
> - fence_ctx = job->base.s_fence ?
> - job->base.s_fence->scheduled.context : 0;
> + fence_ctx = job->base.s_fence ? job->base.s_fence->finished.context : 0;
Please keep the 80 chars length, otherwise my editor starts to show it in red.
> shadow_va = job->shadow_va;
> csa_va = job->csa_va;
> gds_va = job->gds_va;
> init_shadow = job->init_shadow;
> - af = &job->hw_fence;
> + af = job->hw_fence;
> /* Save the context of the job for reset handling.
> * The driver needs this so it can skip the ring
> * contents for guilty contexts.
> */
> - af->context = job->base.s_fence ? job->base.s_fence->finished.context : 0;
> + af->context = fence_ctx;
> + vm_af = job->hw_vm_fence;
> + /* the vm fence is also part of the job's context */
> + vm_af->context = fence_ctx;
> } else {
> vm = NULL;
> fence_ctx = 0;
> @@ -167,7 +169,10 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned int num_ibs,
> csa_va = 0;
> gds_va = 0;
> init_shadow = false;
> - af = NULL;
> + af = kzalloc(sizeof(*af), GFP_NOWAIT);
Thinking more about it GFP_NOWAIT can fail to easily. Since this is relevant only for the extreme case of an IB test under a device reset it's probably ok to use GFP_ATOMIC and dip into the extra reserve.
Regards,
Christian.
> + if (!af)
> + return -ENOMEM;
> + vm_af = NULL;
> }
>
> if (!ring->sched.ready) {
> @@ -289,7 +294,7 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned int num_ibs,
> amdgpu_ring_init_cond_exec(ring, ring->cond_exe_gpu_addr);
> }
>
> - r = amdgpu_fence_emit(ring, f, af, fence_flags);
> + r = amdgpu_fence_emit(ring, af, fence_flags);
> if (r) {
> dev_err(adev->dev, "failed to emit fence (%d)\n", r);
> if (job && job->vmid)
> @@ -297,6 +302,7 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned int num_ibs,
> amdgpu_ring_undo(ring);
> return r;
> }
> + *f = &af->base;
>
> if (ring->funcs->insert_end)
> ring->funcs->insert_end(ring);
> @@ -317,7 +323,7 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned int num_ibs,
> * fence so we know what rings contents to backup
> * after we reset the queue.
> */
> - amdgpu_fence_save_wptr(*f);
> + amdgpu_fence_save_wptr(af);
>
> amdgpu_ring_ib_end(ring);
> amdgpu_ring_commit(ring);
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
> index 311e97c96c4e0..9a78fe01efa3a 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
> @@ -138,7 +138,7 @@ static enum drm_gpu_sched_stat amdgpu_job_timedout(struct drm_sched_job *s_job)
> ring->funcs->reset) {
> dev_err(adev->dev, "Starting %s ring reset\n",
> s_job->sched->name);
> - r = amdgpu_ring_reset(ring, job->vmid, &job->hw_fence);
> + r = amdgpu_ring_reset(ring, job->vmid, job->hw_fence);
> if (!r) {
> atomic_inc(&ring->adev->gpu_reset_counter);
> dev_err(adev->dev, "Ring %s reset succeeded\n",
> @@ -185,6 +185,9 @@ int amdgpu_job_alloc(struct amdgpu_device *adev, struct amdgpu_vm *vm,
> struct drm_sched_entity *entity, void *owner,
> unsigned int num_ibs, struct amdgpu_job **job)
> {
> + struct amdgpu_fence *af;
> + int r;
> +
> if (num_ibs == 0)
> return -EINVAL;
>
> @@ -192,6 +195,20 @@ int amdgpu_job_alloc(struct amdgpu_device *adev, struct amdgpu_vm *vm,
> if (!*job)
> return -ENOMEM;
>
> + af = kzalloc(sizeof(struct amdgpu_fence), GFP_KERNEL);
> + if (!af) {
> + r = -ENOMEM;
> + goto err_job;
> + }
> + (*job)->hw_fence = af;
> +
> + af = kzalloc(sizeof(struct amdgpu_fence), GFP_KERNEL);
> + if (!af) {
> + r = -ENOMEM;
> + goto err_fence;
> + }
> + (*job)->hw_vm_fence = af;
> +
> (*job)->vm = vm;
>
> amdgpu_sync_create(&(*job)->explicit_sync);
> @@ -202,6 +219,13 @@ int amdgpu_job_alloc(struct amdgpu_device *adev, struct amdgpu_vm *vm,
> return 0;
>
> return drm_sched_job_init(&(*job)->base, entity, 1, owner);
> +
> +err_fence:
> + kfree((*job)->hw_fence);
> +err_job:
> + kfree(*job);
> +
> + return r;
> }
>
> int amdgpu_job_alloc_with_ib(struct amdgpu_device *adev,
> @@ -251,8 +275,8 @@ void amdgpu_job_free_resources(struct amdgpu_job *job)
> /* Check if any fences where initialized */
> if (job->base.s_fence && job->base.s_fence->finished.ops)
> f = &job->base.s_fence->finished;
> - else if (job->hw_fence.base.ops)
> - f = &job->hw_fence.base;
> + else if (job->hw_fence)
> + f = &job->hw_fence->base;
> else
> f = NULL;
>
> @@ -268,11 +292,7 @@ static void amdgpu_job_free_cb(struct drm_sched_job *s_job)
>
> amdgpu_sync_free(&job->explicit_sync);
>
> - /* only put the hw fence if has embedded fence */
> - if (!job->hw_fence.base.ops)
> - kfree(job);
> - else
> - dma_fence_put(&job->hw_fence.base);
> + kfree(job);
> }
>
> void amdgpu_job_set_gang_leader(struct amdgpu_job *job,
> @@ -301,10 +321,7 @@ void amdgpu_job_free(struct amdgpu_job *job)
> if (job->gang_submit != &job->base.s_fence->scheduled)
> dma_fence_put(job->gang_submit);
>
> - if (!job->hw_fence.base.ops)
> - kfree(job);
> - else
> - dma_fence_put(&job->hw_fence.base);
> + kfree(job);
> }
>
> struct dma_fence *amdgpu_job_submit(struct amdgpu_job *job)
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
> index 931fed8892cc1..077b2414a24b7 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.h
> @@ -48,7 +48,8 @@ struct amdgpu_job {
> struct drm_sched_job base;
> struct amdgpu_vm *vm;
> struct amdgpu_sync explicit_sync;
> - struct amdgpu_fence hw_fence;
> + struct amdgpu_fence *hw_fence;
> + struct amdgpu_fence *hw_vm_fence;
> struct dma_fence *gang_submit;
> uint32_t preamble_status;
> uint32_t preemption_status;
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
> index 7670f5d82b9e4..901f8bd375212 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
> @@ -152,11 +152,10 @@ struct amdgpu_fence {
>
> extern const struct drm_sched_backend_ops amdgpu_sched_ops;
>
> -void amdgpu_fence_driver_clear_job_fences(struct amdgpu_ring *ring);
> void amdgpu_fence_driver_set_error(struct amdgpu_ring *ring, int error);
> void amdgpu_fence_driver_force_completion(struct amdgpu_ring *ring);
> void amdgpu_fence_driver_guilty_force_completion(struct amdgpu_fence *fence);
> -void amdgpu_fence_save_wptr(struct dma_fence *fence);
> +void amdgpu_fence_save_wptr(struct amdgpu_fence *af);
>
> int amdgpu_fence_driver_init_ring(struct amdgpu_ring *ring);
> int amdgpu_fence_driver_start_ring(struct amdgpu_ring *ring,
> @@ -166,8 +165,8 @@ void amdgpu_fence_driver_hw_init(struct amdgpu_device *adev);
> void amdgpu_fence_driver_hw_fini(struct amdgpu_device *adev);
> int amdgpu_fence_driver_sw_init(struct amdgpu_device *adev);
> void amdgpu_fence_driver_sw_fini(struct amdgpu_device *adev);
> -int amdgpu_fence_emit(struct amdgpu_ring *ring, struct dma_fence **f,
> - struct amdgpu_fence *af, unsigned int flags);
> +int amdgpu_fence_emit(struct amdgpu_ring *ring, struct amdgpu_fence *af,
> + unsigned int flags);
> int amdgpu_fence_emit_polling(struct amdgpu_ring *ring, uint32_t *s,
> uint32_t timeout);
> bool amdgpu_fence_process(struct amdgpu_ring *ring);
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> index bf42246a3db2f..7d1a363ad6878 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> @@ -772,7 +772,6 @@ int amdgpu_vm_flush(struct amdgpu_ring *ring, struct amdgpu_job *job,
> bool cleaner_shader_needed = false;
> bool pasid_mapping_needed = false;
> struct dma_fence *fence = NULL;
> - struct amdgpu_fence *af;
> unsigned int patch;
> int r;
>
> @@ -835,13 +834,11 @@ int amdgpu_vm_flush(struct amdgpu_ring *ring, struct amdgpu_job *job,
> }
>
> if (vm_flush_needed || pasid_mapping_needed || cleaner_shader_needed) {
> - r = amdgpu_fence_emit(ring, &fence, NULL, 0);
> + r = amdgpu_fence_emit(ring, job->hw_vm_fence, 0);
> if (r)
> return r;
> - /* this is part of the job's context */
> - af = container_of(fence, struct amdgpu_fence, base);
> - af->context = job->base.s_fence ? job->base.s_fence->finished.context : 0;
> }
> + fence = &job->hw_vm_fence->base;
>
> if (vm_flush_needed) {
> mutex_lock(&id_mgr->lock);
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