diff options
author | 2016-04-11 10:41:07 +0300 | |
---|---|---|
committer | 2016-04-13 08:17:18 +0300 | |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/gpu/drm/msm/msm_atomic.c | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/gpu/drm/msm/msm_atomic.c')
-rw-r--r-- | kernel/drivers/gpu/drm/msm/msm_atomic.c | 56 |
1 files changed, 42 insertions, 14 deletions
diff --git a/kernel/drivers/gpu/drm/msm/msm_atomic.c b/kernel/drivers/gpu/drm/msm/msm_atomic.c index 5b192128c..7eb253bc2 100644 --- a/kernel/drivers/gpu/drm/msm/msm_atomic.c +++ b/kernel/drivers/gpu/drm/msm/msm_atomic.c @@ -84,6 +84,33 @@ static void commit_destroy(struct msm_commit *c) kfree(c); } +static void msm_atomic_wait_for_commit_done(struct drm_device *dev, + struct drm_atomic_state *old_state) +{ + struct drm_crtc *crtc; + struct msm_drm_private *priv = old_state->dev->dev_private; + struct msm_kms *kms = priv->kms; + int ncrtcs = old_state->dev->mode_config.num_crtc; + int i; + + for (i = 0; i < ncrtcs; i++) { + crtc = old_state->crtcs[i]; + + if (!crtc) + continue; + + if (!crtc->state->enable) + continue; + + /* Legacy cursor ioctls are completely unsynced, and userspace + * relies on that (by doing tons of cursor updates). */ + if (old_state->legacy_cursor_update) + continue; + + kms->funcs->wait_for_crtc_commit_done(kms, crtc); + } +} + /* The (potentially) asynchronous part of the commit. At this point * nothing can fail short of armageddon. */ @@ -98,7 +125,7 @@ static void complete_commit(struct msm_commit *c) drm_atomic_helper_commit_modeset_disables(dev, state); - drm_atomic_helper_commit_planes(dev, state); + drm_atomic_helper_commit_planes(dev, state, false); drm_atomic_helper_commit_modeset_enables(dev, state); @@ -115,7 +142,7 @@ static void complete_commit(struct msm_commit *c) * not be critical path) */ - drm_atomic_helper_wait_for_vblanks(dev, state); + msm_atomic_wait_for_commit_done(dev, state); drm_atomic_helper_cleanup_planes(dev, state); @@ -139,7 +166,6 @@ static void add_fb(struct msm_commit *c, struct drm_framebuffer *fb) c->fence = max(c->fence, msm_gem_fence(to_msm_bo(obj), MSM_PREP_READ)); } - int msm_atomic_check(struct drm_device *dev, struct drm_atomic_state *state) { @@ -178,7 +204,7 @@ int msm_atomic_commit(struct drm_device *dev, { int nplanes = dev->mode_config.num_total_plane; int ncrtcs = dev->mode_config.num_crtc; - struct timespec timeout; + ktime_t timeout; struct msm_commit *c; int i, ret; @@ -187,8 +213,10 @@ int msm_atomic_commit(struct drm_device *dev, return ret; c = commit_init(state); - if (!c) - return -ENOMEM; + if (!c) { + ret = -ENOMEM; + goto error; + } /* * Figure out what crtcs we have: @@ -221,7 +249,7 @@ int msm_atomic_commit(struct drm_device *dev, ret = start_atomic(dev->dev_private, c->crtc_mask); if (ret) { kfree(c); - return ret; + goto error; } /* @@ -253,16 +281,16 @@ int msm_atomic_commit(struct drm_device *dev, return 0; } - jiffies_to_timespec(jiffies + msecs_to_jiffies(1000), &timeout); + timeout = ktime_add_ms(ktime_get(), 1000); - ret = msm_wait_fence_interruptable(dev, c->fence, &timeout); - if (ret) { - WARN_ON(ret); // TODO unswap state back? or?? - commit_destroy(c); - return ret; - } + /* uninterruptible wait */ + msm_wait_fence(dev, c->fence, &timeout, false); complete_commit(c); return 0; + +error: + drm_atomic_helper_cleanup_planes(dev, state); + return ret; } |