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path: root/drivers/gpu/drm/scheduler/sched_fence.c (follow)
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2018-07-25drm/scheduler: remove sched field from the entityNayan Deshmukh1-1/+1
The scheduler of the entity is decided by the run queue on which it is queued. This patch avoids us the effort required to maintain a sync between rq and sched field when we start shifting entites among different rqs. Signed-off-by: Nayan Deshmukh <nayan26deshmukh@gmail.com> Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-03drm: Remove unecessary dma_fence_opsDaniel Vetter1-11/+0
dma_fence_default_wait is the default now, same for the trivial enable_signaling implementation. Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Gustavo Padovan <gustavo@padovan.org> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Sean Paul <seanpaul@chromium.org> Cc: David Airlie <airlied@linux.ie> Link: https://patchwork.freedesktop.org/patch/msgid/20180503142603.28513-7-daniel.vetter@ffwll.ch
2018-05-24drm/sched: add rcu_barrier after entity finiEmily Deng1-1/+1
To free the fence from the amdgpu_fence_slab, need twice call_rcu, to avoid the amdgpu_fence_slab_fini call kmem_cache_destroy(amdgpu_fence_slab) before kmem_cache_free(amdgpu_fence_slab, fence), add rcu_barrier after drm_sched_entity_fini. The kmem_cache_free(amdgpu_fence_slab, fence)'s call trace as below: 1.drm_sched_entity_fini -> drm_sched_entity_cleanup -> dma_fence_put(entity->last_scheduled) -> drm_sched_fence_release_finished -> drm_sched_fence_release_scheduled -> call_rcu(&fence->finished.rcu, drm_sched_fence_free) 2.drm_sched_fence_free -> dma_fence_put(fence->parent) -> amdgpu_fence_release -> call_rcu(&f->rcu, amdgpu_fence_free) -> kmem_cache_free(amdgpu_fence_slab, fence); v2:put the barrier before the kmem_cache_destroy v3:put the dma_fence_put(fence->parent) before call_rcu in drm_sched_fence_release_scheduled Signed-off-by: Emily Deng <Emily.Deng@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-18drm/scheduler: fix function name prefix in commentsNayan Deshmukh1-3/+3
That got missed while moving the files outside of amdgpu. Signed-off-by: Nayan Deshmukh <nayan26deshmukh@gmail.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-12-07drm/sched: move fence slab handling to module init/exitLucas Stach1-4/+8
This is the only part of the scheduler which must not be called from different drivers. Move it to module init/exit so it is done a single time when loading the scheduler. Reviewed-by: Chunming Zhou <david1.zhou@amd.com> Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-12-07drm: move amd_gpu_scheduler into common locationLucas Stach1-0/+187
This moves and renames the AMDGPU scheduler to a common location in DRM in order to facilitate re-use by other drivers. This is mostly a straight forward rename with no code changes. One notable exception is the function to_drm_sched_fence(), which is no longer a inline header function to avoid the need to export the drm_sched_fence_ops_scheduled and drm_sched_fence_ops_finished structures. Reviewed-by: Chunming Zhou <david1.zhou@amd.com> Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>