From: "Christian König" <ckoenig.leichtzumerken@gmail.com>
To: daniel@ffwll.ch, dri-devel@lists.freedesktop.org,
amd-gfx@lists.freedesktop.org
Subject: Change how amdgpu stores fences in dma_resv objects
Date: Thu, 10 Jun 2021 11:17:53 +0200 [thread overview]
Message-ID: <20210610091800.1833-1-christian.koenig@amd.com> (raw)
Since we can't find a consensus on hot to move forward with the dma_resv object I concentrated on changing the approach for amdgpu first.
This new approach changes how the driver stores the command submission fence in the dma_resv object in DMA-buf exported BOs.
For exported BOs we now store the CS fence in a dma_fence_chain container and assign that one to the exclusive fences slot.
During synchronization this dma_fence_chain container is unpacked again and the containing fences handled individually.
This has a little bit more overhead than the old approach, but it allows for waiting for the exclusive slot for writes again.
Regards,
Christian.
WARNING: multiple messages have this Message-ID (diff)
From: "Christian König" <ckoenig.leichtzumerken@gmail.com>
To: daniel@ffwll.ch, dri-devel@lists.freedesktop.org,
amd-gfx@lists.freedesktop.org
Subject: Change how amdgpu stores fences in dma_resv objects
Date: Thu, 10 Jun 2021 11:17:53 +0200 [thread overview]
Message-ID: <20210610091800.1833-1-christian.koenig@amd.com> (raw)
Since we can't find a consensus on hot to move forward with the dma_resv object I concentrated on changing the approach for amdgpu first.
This new approach changes how the driver stores the command submission fence in the dma_resv object in DMA-buf exported BOs.
For exported BOs we now store the CS fence in a dma_fence_chain container and assign that one to the exclusive fences slot.
During synchronization this dma_fence_chain container is unpacked again and the containing fences handled individually.
This has a little bit more overhead than the old approach, but it allows for waiting for the exclusive slot for writes again.
Regards,
Christian.
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next reply other threads:[~2021-06-10 9:18 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-10 9:17 Christian König [this message]
2021-06-10 9:17 ` Change how amdgpu stores fences in dma_resv objects Christian König
2021-06-10 9:17 ` [PATCH 1/7] dma-buf: some dma_fence_chain improvements Christian König
2021-06-10 9:17 ` Christian König
2021-06-11 7:49 ` Daniel Vetter
2021-06-11 7:49 ` Daniel Vetter
2021-06-10 9:17 ` [PATCH 2/7] dma-buf: add dma_fence_chain_alloc/free Christian König
2021-06-10 9:17 ` Christian König
2021-06-11 7:54 ` Daniel Vetter
2021-06-11 7:54 ` Daniel Vetter
2021-06-11 11:48 ` Christian König
2021-06-11 11:48 ` Christian König
2021-06-11 14:40 ` Daniel Vetter
2021-06-11 14:40 ` Daniel Vetter
2021-06-10 9:17 ` [PATCH 3/7] dma-buf: add dma_fence_chain_alloc/free self tests Christian König
2021-06-10 9:17 ` Christian König
2021-06-11 7:58 ` Daniel Vetter
2021-06-11 7:58 ` Daniel Vetter
2021-06-11 10:04 ` Christian König
2021-06-11 10:04 ` Christian König
2021-06-10 9:17 ` [PATCH 4/7] dma-buf: add dma_fence_chain_garbage_collect Christian König
2021-06-10 9:17 ` Christian König
2021-06-11 8:58 ` Daniel Vetter
2021-06-11 8:58 ` Daniel Vetter
2021-06-11 10:07 ` Christian König
2021-06-11 10:07 ` Christian König
2021-06-11 15:11 ` Daniel Vetter
2021-06-11 15:11 ` Daniel Vetter
2021-06-16 17:29 ` kernel test robot
2021-06-16 17:29 ` kernel test robot
2021-06-16 17:29 ` kernel test robot
2021-06-16 18:50 ` kernel test robot
2021-06-16 18:50 ` kernel test robot
2021-06-16 18:50 ` kernel test robot
2021-06-10 9:17 ` [PATCH 5/7] drm/syncobj: drop the manual garbage collection Christian König
2021-06-10 9:17 ` Christian König
2021-06-10 9:17 ` [PATCH 6/7] drm/amdgpu: unwrap fence chains in the explicit sync fence Christian König
2021-06-10 9:17 ` Christian König
2021-06-11 9:07 ` Daniel Vetter
2021-06-11 9:07 ` Daniel Vetter
2021-06-11 10:09 ` Christian König
2021-06-11 10:09 ` Christian König
2021-06-11 15:18 ` Daniel Vetter
2021-06-11 15:18 ` Daniel Vetter
2021-06-14 7:25 ` Christian König
2021-06-14 7:25 ` Christian König
2021-06-17 16:51 ` Daniel Vetter
2021-06-17 16:51 ` Daniel Vetter
2021-06-10 9:18 ` [PATCH 7/7] drm/amdgpu: rework dma_resv handling Christian König
2021-06-10 9:18 ` Christian König
2021-06-11 9:17 ` Daniel Vetter
2021-06-11 9:17 ` Daniel Vetter
2021-06-11 10:12 ` Christian König
2021-06-11 10:12 ` Christian König
2021-06-11 15:21 ` Daniel Vetter
2021-06-11 15:21 ` Daniel Vetter
2021-06-10 16:34 ` Change how amdgpu stores fences in dma_resv objects Michel Dänzer
2021-06-10 16:34 ` Michel Dänzer
2021-06-10 16:44 ` Christian König
2021-06-10 16:44 ` Christian König
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