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authorRob Clark <robdclark@gmail.com>2014-02-06 19:19:20 -0500
committerRob Clark <robdclark@gmail.com>2014-02-07 10:26:25 -0500
commitc2703b13a63da335053a2f3cb560bb806bdda0ae (patch)
treed7f4bfd1dac7d4c0a71b6823e2e29365a73fb2cb /drivers/gpu/drm/msm/msm_gpu.c
parent9999f105e76977d97304d7cb2030a52d96800d69 (diff)
drm/msm: bigger synchronization hammer
Because we use a list_head in the bo to track it's position in a submit, we need to serialize at a higher layer. Otherwise there are problems when multiple contexts are SUBMIT'ing in parallel cmdstreams referencing a shared bo. Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gpu.c')
-rw-r--r--drivers/gpu/drm/msm/msm_gpu.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c
index 4ebce8be489..0cfe3f426ee 100644
--- a/drivers/gpu/drm/msm/msm_gpu.c
+++ b/drivers/gpu/drm/msm/msm_gpu.c
@@ -298,8 +298,6 @@ int msm_gpu_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit,
struct msm_drm_private *priv = dev->dev_private;
int i, ret;
- mutex_lock(&dev->struct_mutex);
-
submit->fence = ++priv->next_fence;
gpu->submitted_fence = submit->fence;
@@ -331,7 +329,6 @@ int msm_gpu_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit,
msm_gem_move_to_active(&msm_obj->base, gpu, true, submit->fence);
}
hangcheck_timer_reset(gpu);
- mutex_unlock(&dev->struct_mutex);
return ret;
}