hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

drm/i915: Quietly cancel FBC activation if CRTC is turned off before worker 

Since we use a worker to enable FBC on the CRTC, it is possible for the
CRTC to be switched off before we run. In this case, the CRTC will not
allow us to wait upon a vblank, so remove the DRM_ERROR as this is very
much expected.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=102410
Fixes: ca18d51d77 ("drm/i915/fbc: wait for a vblank instead of 50ms when enabling")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170825150215.19236-1-chris@chris-wilson.co.uk
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
(cherry picked from commit 908b6e6e8a)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
This commit is contained in:
Chris Wilson 2017-08-25 16:02:15 +01:00 committed by Rodrigo Vivi
parent 7846b12fe0
commit 9c8eb2d5cb
1 changed files with 1 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/i915/intel_fbc.c
View File

@ -406,9 +406,7 @@ static void intel_fbc_work_fn(struct work_struct *__work)
struct drm_vblank_crtc *vblank = &dev_priv->drm.vblank[crtc->pipe];
if (drm_crtc_vblank_get(&crtc->base)) {
DRM_ERROR("vblank not available for FBC on pipe %c\n",
pipe_name(crtc->pipe));
/* CRTC is now off, leave FBC deactivated */
mutex_lock(&fbc->lock);
work->scheduled = false;
mutex_unlock(&fbc->lock);