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| author | Boris Brezillon <boris.brezillon@free-electrons.com> | 2017-06-02 10:32:08 +0200 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2017-06-16 01:29:08 +0200 |
| commit | 34c8ea400ff6383b028f63df2453914163afc07c (patch) | |
| tree | b12d8b969a76548e9b57bdcb615bfe6f02d41b46 /drivers/gpu/drm/vc4/vc4_kms.c | |
| parent | drm/vc4: Add get/set tiling ioctls. (diff) | |
| download | linux-34c8ea400ff6383b028f63df2453914163afc07c.tar.xz linux-34c8ea400ff6383b028f63df2453914163afc07c.zip | |
drm/vc4: Mimic drm_atomic_helper_commit() behavior
The VC4 KMS driver is implementing its own ->atomic_commit() but there
are a few generic helpers we can use instead of open-coding the logic.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: http://patchwork.freedesktop.org/patch/msgid/1496392332-8722-4-git-send-email-boris.brezillon@free-electrons.com
Diffstat (limited to '')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_kms.c | 38 |
1 files changed, 12 insertions, 26 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_kms.c b/drivers/gpu/drm/vc4/vc4_kms.c index 202f7ebf5a7b..bc6ecdc6f104 100644 --- a/drivers/gpu/drm/vc4/vc4_kms.c +++ b/drivers/gpu/drm/vc4/vc4_kms.c @@ -42,6 +42,10 @@ vc4_atomic_complete_commit(struct vc4_commit *c) struct drm_device *dev = state->dev; struct vc4_dev *vc4 = to_vc4_dev(dev); + drm_atomic_helper_wait_for_fences(dev, state, false); + + drm_atomic_helper_wait_for_dependencies(state); + drm_atomic_helper_commit_modeset_disables(dev, state); drm_atomic_helper_commit_planes(dev, state, 0); @@ -57,10 +61,14 @@ vc4_atomic_complete_commit(struct vc4_commit *c) */ state->legacy_cursor_update = false; + drm_atomic_helper_commit_hw_done(state); + drm_atomic_helper_wait_for_vblanks(dev, state); drm_atomic_helper_cleanup_planes(dev, state); + drm_atomic_helper_commit_cleanup_done(state); + drm_atomic_state_put(state); up(&vc4->async_modeset); @@ -117,32 +125,10 @@ static int vc4_atomic_commit(struct drm_device *dev, if (!c) return -ENOMEM; - /* Make sure that any outstanding modesets have finished. */ - if (nonblock) { - struct drm_crtc *crtc; - struct drm_crtc_state *crtc_state; - unsigned long flags; - bool busy = false; - - /* - * If there's an undispatched event to send then we're - * obviously still busy. If there isn't, then we can - * unconditionally wait for the semaphore because it - * shouldn't be contended (for long). - * - * This is to prevent a race where queuing a new flip - * from userspace immediately on receipt of an event - * beats our clean-up and returns EBUSY. - */ - spin_lock_irqsave(&dev->event_lock, flags); - for_each_crtc_in_state(state, crtc, crtc_state, i) - busy |= vc4_event_pending(crtc); - spin_unlock_irqrestore(&dev->event_lock, flags); - if (busy) { - kfree(c); - return -EBUSY; - } - } + ret = drm_atomic_helper_setup_commit(state, nonblock); + if (ret) + return ret; + ret = down_interruptible(&vc4->async_modeset); if (ret) { kfree(c); |