| Message ID | 20210624204535.614168-1-daniel.vetter@ffwll.ch (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/sched: Split drm_sched_job_init | expand |
On Thu, Jun 24, 2021 at 1:45 PM Daniel Vetter <daniel.vetter@ffwll.ch> wrote: > > This is a very confusingly named function, because not just does it > init an object, it arms it and provides a point of no return for > pushing a job into the scheduler. It would be nice if that's a bit > clearer in the interface. > > But the real reason is that I want to push the dependency tracking > helpers into the scheduler code, and that means drm_sched_job_init > must be called a lot earlier, without arming the job. > > v2: > - don't change .gitignore (Steven) > - don't forget v3d (Emma) > > Acked-by: Steven Price <steven.price@arm.com> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> > Cc: Lucas Stach <l.stach@pengutronix.de> > Cc: Russell King <linux+etnaviv@armlinux.org.uk> > Cc: Christian Gmeiner <christian.gmeiner@gmail.com> > Cc: Qiang Yu <yuq825@gmail.com> > Cc: Rob Herring <robh@kernel.org> > Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com> > Cc: Steven Price <steven.price@arm.com> > Cc: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> > Cc: David Airlie <airlied@linux.ie> > Cc: Daniel Vetter <daniel@ffwll.ch> > Cc: Sumit Semwal <sumit.semwal@linaro.org> > Cc: "Christian König" <christian.koenig@amd.com> > Cc: Masahiro Yamada <masahiroy@kernel.org> > Cc: Kees Cook <keescook@chromium.org> > Cc: Adam Borowski <kilobyte@angband.pl> > Cc: Nick Terrell <terrelln@fb.com> > Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> > Cc: Paul Menzel <pmenzel@molgen.mpg.de> > Cc: Sami Tolvanen <samitolvanen@google.com> > Cc: Viresh Kumar <viresh.kumar@linaro.org> > Cc: Alex Deucher <alexander.deucher@amd.com> > Cc: Dave Airlie <airlied@redhat.com> > Cc: Nirmoy Das <nirmoy.das@amd.com> > Cc: Deepak R Varma <mh12gx2825@gmail.com> > Cc: Lee Jones <lee.jones@linaro.org> > Cc: Kevin Wang <kevin1.wang@amd.com> > Cc: Chen Li <chenli@uniontech.com> > Cc: Luben Tuikov <luben.tuikov@amd.com> > Cc: "Marek Olšák" <marek.olsak@amd.com> > Cc: Dennis Li <Dennis.Li@amd.com> > Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> > Cc: Andrey Grodzovsky <andrey.grodzovsky@amd.com> > Cc: Sonny Jiang <sonny.jiang@amd.com> > Cc: Boris Brezillon <boris.brezillon@collabora.com> > Cc: Tian Tao <tiantao6@hisilicon.com> > Cc: Jack Zhang <Jack.Zhang1@amd.com> > Cc: etnaviv@lists.freedesktop.org > Cc: lima@lists.freedesktop.org > Cc: linux-media@vger.kernel.org > Cc: linaro-mm-sig@lists.linaro.org > Cc: Emma Anholt <emma@anholt.net> > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 2 ++ > drivers/gpu/drm/amd/amdgpu/amdgpu_job.c | 2 ++ > drivers/gpu/drm/etnaviv/etnaviv_sched.c | 2 ++ > drivers/gpu/drm/lima/lima_sched.c | 2 ++ > drivers/gpu/drm/panfrost/panfrost_job.c | 2 ++ > drivers/gpu/drm/scheduler/sched_entity.c | 6 +++--- > drivers/gpu/drm/scheduler/sched_fence.c | 15 ++++++++++----- > drivers/gpu/drm/scheduler/sched_main.c | 23 ++++++++++++++++++++++- > drivers/gpu/drm/v3d/v3d_gem.c | 2 ++ > include/drm/gpu_scheduler.h | 6 +++++- > 10 files changed, 52 insertions(+), 10 deletions(-) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c > index c5386d13eb4a..a4ec092af9a7 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c > @@ -1226,6 +1226,8 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p, > if (r) > goto error_unlock; > > + drm_sched_job_arm(&job->base); > + > /* No memory allocation is allowed while holding the notifier lock. > * The lock is held until amdgpu_cs_submit is finished and fence is > * added to BOs. > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c > index d33e6d97cc89..5ddb955d2315 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c > @@ -170,6 +170,8 @@ int amdgpu_job_submit(struct amdgpu_job *job, struct drm_sched_entity *entity, > if (r) > return r; > > + drm_sched_job_arm(&job->base); > + > *f = dma_fence_get(&job->base.s_fence->finished); > amdgpu_job_free_resources(job); > drm_sched_entity_push_job(&job->base, entity); > diff --git a/drivers/gpu/drm/etnaviv/etnaviv_sched.c b/drivers/gpu/drm/etnaviv/etnaviv_sched.c > index 19826e504efc..af1671f01c7f 100644 > --- a/drivers/gpu/drm/etnaviv/etnaviv_sched.c > +++ b/drivers/gpu/drm/etnaviv/etnaviv_sched.c > @@ -163,6 +163,8 @@ int etnaviv_sched_push_job(struct drm_sched_entity *sched_entity, > if (ret) > goto out_unlock; > > + drm_sched_job_arm(&submit->sched_job); > + > submit->out_fence = dma_fence_get(&submit->sched_job.s_fence->finished); > submit->out_fence_id = idr_alloc_cyclic(&submit->gpu->fence_idr, > submit->out_fence, 0, > diff --git a/drivers/gpu/drm/lima/lima_sched.c b/drivers/gpu/drm/lima/lima_sched.c > index ecf3267334ff..bd1af1fd8c0f 100644 > --- a/drivers/gpu/drm/lima/lima_sched.c > +++ b/drivers/gpu/drm/lima/lima_sched.c > @@ -129,6 +129,8 @@ int lima_sched_task_init(struct lima_sched_task *task, > return err; > } > > + drm_sched_job_arm(&task->base); > + > task->num_bos = num_bos; > task->vm = lima_vm_get(vm); > > diff --git a/drivers/gpu/drm/panfrost/panfrost_job.c b/drivers/gpu/drm/panfrost/panfrost_job.c > index beb62c8fc851..1e950534b9b0 100644 > --- a/drivers/gpu/drm/panfrost/panfrost_job.c > +++ b/drivers/gpu/drm/panfrost/panfrost_job.c > @@ -244,6 +244,8 @@ int panfrost_job_push(struct panfrost_job *job) > goto unlock; > } > > + drm_sched_job_arm(&job->base); > + > job->render_done_fence = dma_fence_get(&job->base.s_fence->finished); > > ret = panfrost_acquire_object_fences(job->bos, job->bo_count, > diff --git a/drivers/gpu/drm/scheduler/sched_entity.c b/drivers/gpu/drm/scheduler/sched_entity.c > index 79554aa4dbb1..f7347c284886 100644 > --- a/drivers/gpu/drm/scheduler/sched_entity.c > +++ b/drivers/gpu/drm/scheduler/sched_entity.c > @@ -485,9 +485,9 @@ void drm_sched_entity_select_rq(struct drm_sched_entity *entity) > * @sched_job: job to submit > * @entity: scheduler entity > * > - * Note: To guarantee that the order of insertion to queue matches > - * the job's fence sequence number this function should be > - * called with drm_sched_job_init under common lock. > + * Note: To guarantee that the order of insertion to queue matches the job's > + * fence sequence number this function should be called with drm_sched_job_arm() > + * under common lock. > * > * Returns 0 for success, negative error code otherwise. > */ > diff --git a/drivers/gpu/drm/scheduler/sched_fence.c b/drivers/gpu/drm/scheduler/sched_fence.c > index 69de2c76731f..0ba810c198bd 100644 > --- a/drivers/gpu/drm/scheduler/sched_fence.c > +++ b/drivers/gpu/drm/scheduler/sched_fence.c > @@ -152,11 +152,10 @@ struct drm_sched_fence *to_drm_sched_fence(struct dma_fence *f) > } > EXPORT_SYMBOL(to_drm_sched_fence); > > -struct drm_sched_fence *drm_sched_fence_create(struct drm_sched_entity *entity, > - void *owner) > +struct drm_sched_fence *drm_sched_fence_alloc(struct drm_sched_entity *entity, > + void *owner) > { > struct drm_sched_fence *fence = NULL; > - unsigned seq; > > fence = kmem_cache_zalloc(sched_fence_slab, GFP_KERNEL); > if (fence == NULL) > @@ -166,13 +165,19 @@ struct drm_sched_fence *drm_sched_fence_create(struct drm_sched_entity *entity, > fence->sched = entity->rq->sched; > spin_lock_init(&fence->lock); > > + return fence; > +} If there's an error path between fence_alloc (job_init()) and fence_create() (job_arm()) time, how does the s_fence get freed? Before, I was committed to calling drm_sched_entity_push_job() which lead to the job being processed and freed, but now I think we need some other non-pushed-job free path. > +EXPORT_SYMBOL(drm_sched_job_arm); > + > /** > * drm_sched_job_cleanup - clean up scheduler job resources > * > diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c > index 4eb354226972..5c3a99027ecd 100644 > --- a/drivers/gpu/drm/v3d/v3d_gem.c > +++ b/drivers/gpu/drm/v3d/v3d_gem.c > @@ -475,6 +475,8 @@ v3d_push_job(struct v3d_file_priv *v3d_priv, > if (ret) > return ret; > > + drm_sched_job_arm(&job->base); > + > job->done_fence = dma_fence_get(&job->base.s_fence->finished); > > /* put by scheduler job completion */ > diff --git a/include/drm/gpu_scheduler.h b/include/drm/gpu_scheduler.h > index d18af49fd009..80438d126c9d 100644 > --- a/include/drm/gpu_scheduler.h > +++ b/include/drm/gpu_scheduler.h > @@ -313,6 +313,7 @@ void drm_sched_fini(struct drm_gpu_scheduler *sched); > int drm_sched_job_init(struct drm_sched_job *job, > struct drm_sched_entity *entity, > void *owner); > +void drm_sched_job_arm(struct drm_sched_job *job); > void drm_sched_entity_modify_sched(struct drm_sched_entity *entity, > struct drm_gpu_scheduler **sched_list, > unsigned int num_sched_list); > @@ -352,8 +353,11 @@ void drm_sched_entity_set_priority(struct drm_sched_entity *entity, > enum drm_sched_priority priority); > bool drm_sched_entity_is_ready(struct drm_sched_entity *entity); > > -struct drm_sched_fence *drm_sched_fence_create( > +struct drm_sched_fence *drm_sched_fence_alloc( > struct drm_sched_entity *s_entity, void *owner); > +void drm_sched_fence_init(struct drm_sched_fence *fence, > + struct drm_sched_entity *entity); > + > void drm_sched_fence_scheduled(struct drm_sched_fence *fence); > void drm_sched_fence_finished(struct drm_sched_fence *fence); > > -- > 2.32.0.rc2 >
On Thu, Jun 24, 2021 at 11:00 PM Emma Anholt <emma@anholt.net> wrote: > > On Thu, Jun 24, 2021 at 1:45 PM Daniel Vetter <daniel.vetter@ffwll.ch> wrote: > > > > This is a very confusingly named function, because not just does it > > init an object, it arms it and provides a point of no return for > > pushing a job into the scheduler. It would be nice if that's a bit > > clearer in the interface. > > > > But the real reason is that I want to push the dependency tracking > > helpers into the scheduler code, and that means drm_sched_job_init > > must be called a lot earlier, without arming the job. > > > > v2: > > - don't change .gitignore (Steven) > > - don't forget v3d (Emma) > > > > Acked-by: Steven Price <steven.price@arm.com> > > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> > > Cc: Lucas Stach <l.stach@pengutronix.de> > > Cc: Russell King <linux+etnaviv@armlinux.org.uk> > > Cc: Christian Gmeiner <christian.gmeiner@gmail.com> > > Cc: Qiang Yu <yuq825@gmail.com> > > Cc: Rob Herring <robh@kernel.org> > > Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com> > > Cc: Steven Price <steven.price@arm.com> > > Cc: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> > > Cc: David Airlie <airlied@linux.ie> > > Cc: Daniel Vetter <daniel@ffwll.ch> > > Cc: Sumit Semwal <sumit.semwal@linaro.org> > > Cc: "Christian König" <christian.koenig@amd.com> > > Cc: Masahiro Yamada <masahiroy@kernel.org> > > Cc: Kees Cook <keescook@chromium.org> > > Cc: Adam Borowski <kilobyte@angband.pl> > > Cc: Nick Terrell <terrelln@fb.com> > > Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> > > Cc: Paul Menzel <pmenzel@molgen.mpg.de> > > Cc: Sami Tolvanen <samitolvanen@google.com> > > Cc: Viresh Kumar <viresh.kumar@linaro.org> > > Cc: Alex Deucher <alexander.deucher@amd.com> > > Cc: Dave Airlie <airlied@redhat.com> > > Cc: Nirmoy Das <nirmoy.das@amd.com> > > Cc: Deepak R Varma <mh12gx2825@gmail.com> > > Cc: Lee Jones <lee.jones@linaro.org> > > Cc: Kevin Wang <kevin1.wang@amd.com> > > Cc: Chen Li <chenli@uniontech.com> > > Cc: Luben Tuikov <luben.tuikov@amd.com> > > Cc: "Marek Olšák" <marek.olsak@amd.com> > > Cc: Dennis Li <Dennis.Li@amd.com> > > Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> > > Cc: Andrey Grodzovsky <andrey.grodzovsky@amd.com> > > Cc: Sonny Jiang <sonny.jiang@amd.com> > > Cc: Boris Brezillon <boris.brezillon@collabora.com> > > Cc: Tian Tao <tiantao6@hisilicon.com> > > Cc: Jack Zhang <Jack.Zhang1@amd.com> > > Cc: etnaviv@lists.freedesktop.org > > Cc: lima@lists.freedesktop.org > > Cc: linux-media@vger.kernel.org > > Cc: linaro-mm-sig@lists.linaro.org > > Cc: Emma Anholt <emma@anholt.net> > > --- > > drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 2 ++ > > drivers/gpu/drm/amd/amdgpu/amdgpu_job.c | 2 ++ > > drivers/gpu/drm/etnaviv/etnaviv_sched.c | 2 ++ > > drivers/gpu/drm/lima/lima_sched.c | 2 ++ > > drivers/gpu/drm/panfrost/panfrost_job.c | 2 ++ > > drivers/gpu/drm/scheduler/sched_entity.c | 6 +++--- > > drivers/gpu/drm/scheduler/sched_fence.c | 15 ++++++++++----- > > drivers/gpu/drm/scheduler/sched_main.c | 23 ++++++++++++++++++++++- > > drivers/gpu/drm/v3d/v3d_gem.c | 2 ++ > > include/drm/gpu_scheduler.h | 6 +++++- > > 10 files changed, 52 insertions(+), 10 deletions(-) > > > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c > > index c5386d13eb4a..a4ec092af9a7 100644 > > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c > > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c > > @@ -1226,6 +1226,8 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p, > > if (r) > > goto error_unlock; > > > > + drm_sched_job_arm(&job->base); > > + > > /* No memory allocation is allowed while holding the notifier lock. > > * The lock is held until amdgpu_cs_submit is finished and fence is > > * added to BOs. > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c > > index d33e6d97cc89..5ddb955d2315 100644 > > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c > > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c > > @@ -170,6 +170,8 @@ int amdgpu_job_submit(struct amdgpu_job *job, struct drm_sched_entity *entity, > > if (r) > > return r; > > > > + drm_sched_job_arm(&job->base); > > + > > *f = dma_fence_get(&job->base.s_fence->finished); > > amdgpu_job_free_resources(job); > > drm_sched_entity_push_job(&job->base, entity); > > diff --git a/drivers/gpu/drm/etnaviv/etnaviv_sched.c b/drivers/gpu/drm/etnaviv/etnaviv_sched.c > > index 19826e504efc..af1671f01c7f 100644 > > --- a/drivers/gpu/drm/etnaviv/etnaviv_sched.c > > +++ b/drivers/gpu/drm/etnaviv/etnaviv_sched.c > > @@ -163,6 +163,8 @@ int etnaviv_sched_push_job(struct drm_sched_entity *sched_entity, > > if (ret) > > goto out_unlock; > > > > + drm_sched_job_arm(&submit->sched_job); > > + > > submit->out_fence = dma_fence_get(&submit->sched_job.s_fence->finished); > > submit->out_fence_id = idr_alloc_cyclic(&submit->gpu->fence_idr, > > submit->out_fence, 0, > > diff --git a/drivers/gpu/drm/lima/lima_sched.c b/drivers/gpu/drm/lima/lima_sched.c > > index ecf3267334ff..bd1af1fd8c0f 100644 > > --- a/drivers/gpu/drm/lima/lima_sched.c > > +++ b/drivers/gpu/drm/lima/lima_sched.c > > @@ -129,6 +129,8 @@ int lima_sched_task_init(struct lima_sched_task *task, > > return err; > > } > > > > + drm_sched_job_arm(&task->base); > > + > > task->num_bos = num_bos; > > task->vm = lima_vm_get(vm); > > > > diff --git a/drivers/gpu/drm/panfrost/panfrost_job.c b/drivers/gpu/drm/panfrost/panfrost_job.c > > index beb62c8fc851..1e950534b9b0 100644 > > --- a/drivers/gpu/drm/panfrost/panfrost_job.c > > +++ b/drivers/gpu/drm/panfrost/panfrost_job.c > > @@ -244,6 +244,8 @@ int panfrost_job_push(struct panfrost_job *job) > > goto unlock; > > } > > > > + drm_sched_job_arm(&job->base); > > + > > job->render_done_fence = dma_fence_get(&job->base.s_fence->finished); > > > > ret = panfrost_acquire_object_fences(job->bos, job->bo_count, > > diff --git a/drivers/gpu/drm/scheduler/sched_entity.c b/drivers/gpu/drm/scheduler/sched_entity.c > > index 79554aa4dbb1..f7347c284886 100644 > > --- a/drivers/gpu/drm/scheduler/sched_entity.c > > +++ b/drivers/gpu/drm/scheduler/sched_entity.c > > @@ -485,9 +485,9 @@ void drm_sched_entity_select_rq(struct drm_sched_entity *entity) > > * @sched_job: job to submit > > * @entity: scheduler entity > > * > > - * Note: To guarantee that the order of insertion to queue matches > > - * the job's fence sequence number this function should be > > - * called with drm_sched_job_init under common lock. > > + * Note: To guarantee that the order of insertion to queue matches the job's > > + * fence sequence number this function should be called with drm_sched_job_arm() > > + * under common lock. > > * > > * Returns 0 for success, negative error code otherwise. > > */ > > diff --git a/drivers/gpu/drm/scheduler/sched_fence.c b/drivers/gpu/drm/scheduler/sched_fence.c > > index 69de2c76731f..0ba810c198bd 100644 > > --- a/drivers/gpu/drm/scheduler/sched_fence.c > > +++ b/drivers/gpu/drm/scheduler/sched_fence.c > > @@ -152,11 +152,10 @@ struct drm_sched_fence *to_drm_sched_fence(struct dma_fence *f) > > } > > EXPORT_SYMBOL(to_drm_sched_fence); > > > > -struct drm_sched_fence *drm_sched_fence_create(struct drm_sched_entity *entity, > > - void *owner) > > +struct drm_sched_fence *drm_sched_fence_alloc(struct drm_sched_entity *entity, > > + void *owner) > > { > > struct drm_sched_fence *fence = NULL; > > - unsigned seq; > > > > fence = kmem_cache_zalloc(sched_fence_slab, GFP_KERNEL); > > if (fence == NULL) > > @@ -166,13 +165,19 @@ struct drm_sched_fence *drm_sched_fence_create(struct drm_sched_entity *entity, > > fence->sched = entity->rq->sched; > > spin_lock_init(&fence->lock); > > > > + return fence; > > +} > > If there's an error path between fence_alloc (job_init()) and > fence_create() (job_arm()) time, how does the s_fence get freed? > Before, I was committed to calling drm_sched_entity_push_job() which > lead to the job being processed and freed, but now I think we need > some other non-pushed-job free path. Yeah I need to fix that in each driver when I move the drm_sched_job_init around. From a quick look I just need to move the drm_sched_job_cleanup() call around slightly in each case, but it's a bit too late to do that without screwing it up for sure. I'll look into that tomorrow. -Daniel > > > +EXPORT_SYMBOL(drm_sched_job_arm); > > + > > /** > > * drm_sched_job_cleanup - clean up scheduler job resources > > * > > diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c > > index 4eb354226972..5c3a99027ecd 100644 > > --- a/drivers/gpu/drm/v3d/v3d_gem.c > > +++ b/drivers/gpu/drm/v3d/v3d_gem.c > > @@ -475,6 +475,8 @@ v3d_push_job(struct v3d_file_priv *v3d_priv, > > if (ret) > > return ret; > > > > + drm_sched_job_arm(&job->base); > > + > > job->done_fence = dma_fence_get(&job->base.s_fence->finished); > > > > /* put by scheduler job completion */ > > diff --git a/include/drm/gpu_scheduler.h b/include/drm/gpu_scheduler.h > > index d18af49fd009..80438d126c9d 100644 > > --- a/include/drm/gpu_scheduler.h > > +++ b/include/drm/gpu_scheduler.h > > @@ -313,6 +313,7 @@ void drm_sched_fini(struct drm_gpu_scheduler *sched); > > int drm_sched_job_init(struct drm_sched_job *job, > > struct drm_sched_entity *entity, > > void *owner); > > +void drm_sched_job_arm(struct drm_sched_job *job); > > void drm_sched_entity_modify_sched(struct drm_sched_entity *entity, > > struct drm_gpu_scheduler **sched_list, > > unsigned int num_sched_list); > > @@ -352,8 +353,11 @@ void drm_sched_entity_set_priority(struct drm_sched_entity *entity, > > enum drm_sched_priority priority); > > bool drm_sched_entity_is_ready(struct drm_sched_entity *entity); > > > > -struct drm_sched_fence *drm_sched_fence_create( > > +struct drm_sched_fence *drm_sched_fence_alloc( > > struct drm_sched_entity *s_entity, void *owner); > > +void drm_sched_fence_init(struct drm_sched_fence *fence, > > + struct drm_sched_entity *entity); > > + > > void drm_sched_fence_scheduled(struct drm_sched_fence *fence); > > void drm_sched_fence_finished(struct drm_sched_fence *fence); > > > > -- > > 2.32.0.rc2 > >
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index c5386d13eb4a..a4ec092af9a7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -1226,6 +1226,8 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p, if (r) goto error_unlock; + drm_sched_job_arm(&job->base); + /* No memory allocation is allowed while holding the notifier lock. * The lock is held until amdgpu_cs_submit is finished and fence is * added to BOs. diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c index d33e6d97cc89..5ddb955d2315 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c @@ -170,6 +170,8 @@ int amdgpu_job_submit(struct amdgpu_job *job, struct drm_sched_entity *entity, if (r) return r; + drm_sched_job_arm(&job->base); + *f = dma_fence_get(&job->base.s_fence->finished); amdgpu_job_free_resources(job); drm_sched_entity_push_job(&job->base, entity); diff --git a/drivers/gpu/drm/etnaviv/etnaviv_sched.c b/drivers/gpu/drm/etnaviv/etnaviv_sched.c index 19826e504efc..af1671f01c7f 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_sched.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_sched.c @@ -163,6 +163,8 @@ int etnaviv_sched_push_job(struct drm_sched_entity *sched_entity, if (ret) goto out_unlock; + drm_sched_job_arm(&submit->sched_job); + submit->out_fence = dma_fence_get(&submit->sched_job.s_fence->finished); submit->out_fence_id = idr_alloc_cyclic(&submit->gpu->fence_idr, submit->out_fence, 0, diff --git a/drivers/gpu/drm/lima/lima_sched.c b/drivers/gpu/drm/lima/lima_sched.c index ecf3267334ff..bd1af1fd8c0f 100644 --- a/drivers/gpu/drm/lima/lima_sched.c +++ b/drivers/gpu/drm/lima/lima_sched.c @@ -129,6 +129,8 @@ int lima_sched_task_init(struct lima_sched_task *task, return err; } + drm_sched_job_arm(&task->base); + task->num_bos = num_bos; task->vm = lima_vm_get(vm); diff --git a/drivers/gpu/drm/panfrost/panfrost_job.c b/drivers/gpu/drm/panfrost/panfrost_job.c index beb62c8fc851..1e950534b9b0 100644 --- a/drivers/gpu/drm/panfrost/panfrost_job.c +++ b/drivers/gpu/drm/panfrost/panfrost_job.c @@ -244,6 +244,8 @@ int panfrost_job_push(struct panfrost_job *job) goto unlock; } + drm_sched_job_arm(&job->base); + job->render_done_fence = dma_fence_get(&job->base.s_fence->finished); ret = panfrost_acquire_object_fences(job->bos, job->bo_count, diff --git a/drivers/gpu/drm/scheduler/sched_entity.c b/drivers/gpu/drm/scheduler/sched_entity.c index 79554aa4dbb1..f7347c284886 100644 --- a/drivers/gpu/drm/scheduler/sched_entity.c +++ b/drivers/gpu/drm/scheduler/sched_entity.c @@ -485,9 +485,9 @@ void drm_sched_entity_select_rq(struct drm_sched_entity *entity) * @sched_job: job to submit * @entity: scheduler entity * - * Note: To guarantee that the order of insertion to queue matches - * the job's fence sequence number this function should be - * called with drm_sched_job_init under common lock. + * Note: To guarantee that the order of insertion to queue matches the job's + * fence sequence number this function should be called with drm_sched_job_arm() + * under common lock. * * Returns 0 for success, negative error code otherwise. */ diff --git a/drivers/gpu/drm/scheduler/sched_fence.c b/drivers/gpu/drm/scheduler/sched_fence.c index 69de2c76731f..0ba810c198bd 100644 --- a/drivers/gpu/drm/scheduler/sched_fence.c +++ b/drivers/gpu/drm/scheduler/sched_fence.c @@ -152,11 +152,10 @@ struct drm_sched_fence *to_drm_sched_fence(struct dma_fence *f) } EXPORT_SYMBOL(to_drm_sched_fence); -struct drm_sched_fence *drm_sched_fence_create(struct drm_sched_entity *entity, - void *owner) +struct drm_sched_fence *drm_sched_fence_alloc(struct drm_sched_entity *entity, + void *owner) { struct drm_sched_fence *fence = NULL; - unsigned seq; fence = kmem_cache_zalloc(sched_fence_slab, GFP_KERNEL); if (fence == NULL) @@ -166,13 +165,19 @@ struct drm_sched_fence *drm_sched_fence_create(struct drm_sched_entity *entity, fence->sched = entity->rq->sched; spin_lock_init(&fence->lock); + return fence; +} + +void drm_sched_fence_init(struct drm_sched_fence *fence, + struct drm_sched_entity *entity) +{ + unsigned seq; + seq = atomic_inc_return(&entity->fence_seq); dma_fence_init(&fence->scheduled, &drm_sched_fence_ops_scheduled, &fence->lock, entity->fence_context, seq); dma_fence_init(&fence->finished, &drm_sched_fence_ops_finished, &fence->lock, entity->fence_context + 1, seq); - - return fence; } module_init(drm_sched_fence_slab_init); diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c index 61420a9c1021..70eefed17e06 100644 --- a/drivers/gpu/drm/scheduler/sched_main.c +++ b/drivers/gpu/drm/scheduler/sched_main.c @@ -48,9 +48,11 @@ #include <linux/wait.h> #include <linux/sched.h> #include <linux/completion.h> +#include <linux/dma-resv.h> #include <uapi/linux/sched/types.h> #include <drm/drm_print.h> +#include <drm/drm_gem.h> #include <drm/gpu_scheduler.h> #include <drm/spsc_queue.h> @@ -594,7 +596,7 @@ int drm_sched_job_init(struct drm_sched_job *job, job->sched = sched; job->entity = entity; job->s_priority = entity->rq - sched->sched_rq; - job->s_fence = drm_sched_fence_create(entity, owner); + job->s_fence = drm_sched_fence_alloc(entity, owner); if (!job->s_fence) return -ENOMEM; job->id = atomic64_inc_return(&sched->job_id_count); @@ -605,6 +607,25 @@ int drm_sched_job_init(struct drm_sched_job *job, } EXPORT_SYMBOL(drm_sched_job_init); +/** + * drm_sched_job_arm - arm a scheduler job for execution + * @job: scheduler job to arm + * + * This arms a scheduler job for execution. Specifically it initializes the + * &drm_sched_job.s_fence of @job, so that it can be attached to struct dma_resv + * or other places that need to track the completion of this job. + * + * Refer to drm_sched_entity_push_job() documentation for locking + * considerations. + * + * This can only be called if drm_sched_job_init() succeeded. + */ +void drm_sched_job_arm(struct drm_sched_job *job) +{ + drm_sched_fence_init(job->s_fence, job->entity); +} +EXPORT_SYMBOL(drm_sched_job_arm); + /** * drm_sched_job_cleanup - clean up scheduler job resources * diff --git a/drivers/gpu/drm/v3d/v3d_gem.c b/drivers/gpu/drm/v3d/v3d_gem.c index 4eb354226972..5c3a99027ecd 100644 --- a/drivers/gpu/drm/v3d/v3d_gem.c +++ b/drivers/gpu/drm/v3d/v3d_gem.c @@ -475,6 +475,8 @@ v3d_push_job(struct v3d_file_priv *v3d_priv, if (ret) return ret; + drm_sched_job_arm(&job->base); + job->done_fence = dma_fence_get(&job->base.s_fence->finished); /* put by scheduler job completion */ diff --git a/include/drm/gpu_scheduler.h b/include/drm/gpu_scheduler.h index d18af49fd009..80438d126c9d 100644 --- a/include/drm/gpu_scheduler.h +++ b/include/drm/gpu_scheduler.h @@ -313,6 +313,7 @@ void drm_sched_fini(struct drm_gpu_scheduler *sched); int drm_sched_job_init(struct drm_sched_job *job, struct drm_sched_entity *entity, void *owner); +void drm_sched_job_arm(struct drm_sched_job *job); void drm_sched_entity_modify_sched(struct drm_sched_entity *entity, struct drm_gpu_scheduler **sched_list, unsigned int num_sched_list); @@ -352,8 +353,11 @@ void drm_sched_entity_set_priority(struct drm_sched_entity *entity, enum drm_sched_priority priority); bool drm_sched_entity_is_ready(struct drm_sched_entity *entity); -struct drm_sched_fence *drm_sched_fence_create( +struct drm_sched_fence *drm_sched_fence_alloc( struct drm_sched_entity *s_entity, void *owner); +void drm_sched_fence_init(struct drm_sched_fence *fence, + struct drm_sched_entity *entity); + void drm_sched_fence_scheduled(struct drm_sched_fence *fence); void drm_sched_fence_finished(struct drm_sched_fence *fence);