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| author | Rob Clark <robdclark@gmail.com> | 2014-11-07 18:10:04 -0500 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2014-11-16 14:27:35 -0500 |
| commit | 69193e5060dd1c8f7cd614bad05f33f3e042ae6d (patch) | |
| tree | 94f8c5ab7e2847e8955cbd6323c7365dbf83e918 /drivers/gpu/drm/msm/msm_drv.c | |
| parent | a8cecf33249b80d8a3c2ca5df1c45eb3b5231b28 (diff) | |
| download | linux-69193e5060dd1c8f7cd614bad05f33f3e042ae6d.tar.gz linux-69193e5060dd1c8f7cd614bad05f33f3e042ae6d.tar.bz2 linux-69193e5060dd1c8f7cd614bad05f33f3e042ae6d.zip | |
drm/msm: small fence cleanup
Give ourselves a way to wait for certain fence #.. makes it easier to
wait on a set of bo's, which we'll need for atomic.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/msm/msm_drv.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_drv.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 5717d4ec1a2c..1456b1c3e890 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -619,6 +619,26 @@ int msm_wait_fence_interruptable(struct drm_device *dev, uint32_t fence, return ret; } +int msm_queue_fence_cb(struct drm_device *dev, + struct msm_fence_cb *cb, uint32_t fence) +{ + struct msm_drm_private *priv = dev->dev_private; + int ret = 0; + + mutex_lock(&dev->struct_mutex); + if (!list_empty(&cb->work.entry)) { + ret = -EINVAL; + } else if (fence > priv->completed_fence) { + cb->fence = fence; + list_add_tail(&cb->work.entry, &priv->fence_cbs); + } else { + queue_work(priv->wq, &cb->work); + } + mutex_unlock(&dev->struct_mutex); + + return ret; +} + /* called from workqueue */ void msm_update_fence(struct drm_device *dev, uint32_t fence) { |