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path: root/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.h
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2022-11-03drm/amdgpu: use scheduler dependencies for VM updatesChristian König1-0/+2
Instead of putting that into the job sync object. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Luben Tuikov <luben.tuikov@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221014084641.128280-9-christian.koenig@amd.com
2022-03-25drm/amdgpu: rework TLB flushingChristian König1-2/+0
Instead of tracking the VM updates through the dependencies just use a sequence counter for page table updates which indicates the need to flush the TLB. This reduces the need to flush the TLB drastically. v2: squash in NULL check fix (Christian) Signed-off-by: Christian König <christian.koenig@amd.com> Acked-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-03-25drm/amdgpu: simplify VM update tracking a bitChristian König1-1/+1
Store the 64bit sequence directly. Makes it simpler to use and saves a bit of fence reference counting overhead. Signed-off-by: Christian König <christian.koenig@amd.com> Acked-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-01drm/amdgpu: remove distinction between explicit and implicit sync (v2)Christian König1-4/+2
According to Marek a pipeline sync should be inserted for implicit syncs well. v2: bump the driver version Signed-off-by: Christian König <christian.koenig@amd.com> Tested-by: Marek Olšák <marek.olsak@amd.com> Signed-off-by: Marek Olšák <marek.olsak@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-02-05drm/amdgpu: rework job synchronization v2Christian König1-5/+10
For unlocked page table updates we need to be able to sync to fences of a specific VM. v2: use SYNC_ALWAYS in the UVD code Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-12-10drm/amdgpu: explicitely sync to VM updates v2Christian König1-3/+5
Allows us to reduce the overhead while syncing to fences a bit. v2: also drop adev parameter from the functions Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-08-13dma-buf: rename reservation_object to dma_resvChristian König1-2/+2
Be more consistent with the naming of the other DMA-buf objects. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/323401/
2018-02-07drm/amdgpu: add amdgpu_sync_cloneFelix Kuehling1-0/+1
Cloning a sync object is useful for waiting for a sync object without locking the original structure indefinitely, blocking other threads. Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2017-12-06drm/amdgpu: Get rid of dep_sync as a seperate object.Andrey Grodzovsky1-2/+2
Instead mark fence as explicit in it's amdgpu_sync_entry. v2: Fix use after free bug and add new parameter description. Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-10-09drm/amdgpu: introduce AMDGPU_GEM_CREATE_EXPLICIT_SYNC v2Andres Rodriguez1-1/+2
Introduce a flag to signal that access to a BO will be synchronized through an external mechanism. Currently all buffers shared between contexts are subject to implicit synchronization. However, this is only required for protocols that currently don't support an explicit synchronization mechanism (DRI2/3). This patch introduces the AMDGPU_GEM_CREATE_EXPLICIT_SYNC, so that users can specify when it is safe to disable implicit sync. v2: only disable explicit sync in amdgpu_cs_ioctl Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Andres Rodriguez <andresx7@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-06-09drm/amdgpu: Add amdgpu_sync_waitHarish Kasiviswanathan1-0/+1
v2: Add intr option Helper function useful for CPU update of VM page tables. Also useful if kernel have to synchronously wait till VM page tables are updated. Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-10-28Merge tag 'topic/drm-misc-2016-10-27' of ↵Dave Airlie1-5/+5
git://anongit.freedesktop.org/git/drm-intel into drm-next Pull request already again to get the s/fence/dma_fence/ stuff in and allow everyone to resync. Otherwise really just misc stuff all over, and a new bridge driver. * tag 'topic/drm-misc-2016-10-27' of git://anongit.freedesktop.org/git/drm-intel: drm/bridge: fix platform_no_drv_owner.cocci warnings drm/bridge: fix semicolon.cocci warnings drm: Print some debug/error info during DP dual mode detect drm: mark drm_of_component_match_add dummy inline drm/bridge: add Silicon Image SiI8620 driver dt-bindings: add Silicon Image SiI8620 bridge bindings video: add header file for Mobile High-Definition Link (MHL) interface drm: convert DT component matching to component_match_add_release() dma-buf: Rename struct fence to dma_fence dma-buf/fence: add an lockdep_assert_held() drm/dp: Factor out helper to distinguish between branch and sink devices drm/edid: Only print the bad edid when aborting drm/msm: add missing header dependencies drm/msm/adreno: move function declarations to header file drm/i2c/tda998x: mark symbol static where possible doc: add missing docbook parameter for fence-array drm: RIP mode_config->rotation_property drm/msm/mdp5: Advertize 180 degree rotation drm/msm/mdp5: Use per-plane rotation property
2016-10-25drm/amdgpu: move sync handling into a separate headerChristian König1-0/+56
Only cleanup, no intended functional change. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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