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freedreno/drm: Initialize control->fence

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Don't rely on getting a zero'd out buffer, we could hit the bo-cache.

Fixes: 7dabd62464 ("freedreno/drm: Userspace fences")
Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10567>
This commit is contained in:
Rob Clark 2021-05-01 10:57:40 -07:00 • committed by Marge Bot
parent 636a7cf84b
commit c554757bc2
1 changed files with 5 additions and 0 deletions
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5
src/freedreno/drm/freedreno_pipe.c
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@ -64,6 +64,11 @@ fd_pipe_new2(struct fd_device *dev, enum fd_pipe_id id, uint32_t prio)
0, "pipe-control");
pipe->control = fd_bo_map(pipe->control_mem);
/* We could be getting a bo from the bo-cache, make sure the fence value
* is not garbage:
*/
pipe->control->fence = 0;
/* We don't want the control_mem bo to hold a reference to the ourself,
* so disable userspace fencing. This also means that we won't be able
* to determine if the buffer is idle which is needed by bo-cache. But