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authorRob Clark <robdclark@chromium.org>2020-10-23 19:51:16 +0300
committerRob Clark <robdclark@chromium.org>2020-11-05 03:00:56 +0300
commit77d205290aa944895cf7e8bea500b8fd95a6b05b (patch)
treeb2cc8fd3c7501168fc7a0ce2077af832dc9b8b19 /drivers/gpu/drm/msm/msm_ringbuffer.h
parent77c406038e830a4b6219b14a116cd2a6ac9f4908 (diff)
downloadlinux-77d205290aa944895cf7e8bea500b8fd95a6b05b.tar.xz
drm/msm: Protect ring->submits with it's own lock
One less place to rely on dev->struct_mutex. Signed-off-by: Rob Clark <robdclark@chromium.org> Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org> Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com> Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/msm/msm_ringbuffer.h')
-rw-r--r--drivers/gpu/drm/msm/msm_ringbuffer.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_ringbuffer.h b/drivers/gpu/drm/msm/msm_ringbuffer.h
index 4956d1bc5d0e..fe55d4a1aa16 100644
--- a/drivers/gpu/drm/msm/msm_ringbuffer.h
+++ b/drivers/gpu/drm/msm/msm_ringbuffer.h
@@ -39,7 +39,13 @@ struct msm_ringbuffer {
int id;
struct drm_gem_object *bo;
uint32_t *start, *end, *cur, *next;
+
+ /*
+ * List of in-flight submits on this ring. Protected by submit_lock.
+ */
struct list_head submits;
+ spinlock_t submit_lock;
+
uint64_t iova;
uint32_t seqno;
uint32_t hangcheck_fence;