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linux/drivers/gpu
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Akhil P Oommen f14d2d1df5 drm/msm/a6xx: Use barriers while updating HFI Q headers 
[ Upstream commit dc78b35d5e ]

To avoid harmful compiler optimizations and IO reordering in the HW, use
barriers and READ/WRITE_ONCE helpers as necessary while accessing the HFI
queue index variables.

Fixes: 4b565ca5a2 ("drm/msm: Add A6XX device support")
Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/714653/
Message-ID: <20260327-a8xx-gpu-batch2-v2-1-2b53c38d2101@oss.qualcomm.com>
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2026-06-01 17:35:31 +02:00
..
drm drm/msm/a6xx: Use barriers while updating HFI Q headers 2026-06-01 17:35:31 +02:00
host1x gpu: host1x: Fix race in syncpt alloc/free 2026-01-19 13:09:22 +01:00
ipu-v3 gpu: ipu-v3: common: Add of_node_put() for reference returned by of_graph_get_port_by_id() 2023-03-10 09:39:20 +01:00
trace gpu/trace: add a gpu total memory usage tracepoint 2020-03-03 17:52:41 -05:00
vga vgaarb: don't pass a cookie to vga_client_register 2021-07-21 10:29:10 +02:00
Makefile gpu/trace: add a gpu total memory usage tracepoint 2020-03-03 17:52:41 -05:00