diff options
| author | Lukas Wunner <lukas@wunner.de> | 2016-06-08 18:47:27 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-06-24 08:49:34 +0200 |
| commit | 523872f6b0724ee93d4dad898219306c45c78553 (patch) | |
| tree | 1d318958561a1e4521c08bc9218094e832973943 /drivers/gpu/drm/nouveau/nouveau_display.c | |
| parent | 6a0d95285035c43361c72776b4c618f60c0f4ab4 (diff) | |
drm/nouveau: Turn off CRTCs on driver unload
nouveau leaks a runtime pm ref if at least one CRTC is enabled on
unload. The ref is taken by nouveau_crtc_set_config() and held as long
as a CRTC is in use.
nv04_display_destroy() should solve this by turning off all CRTCs, but
(1) nv50_display_destroy() doesn't do the same and
(2) it's broken since commit d6bf2f370703 ("drm/nouveau: run mode_config
destructor before destroying internal display state") because the
crtc structs are torn down by drm_mode_config_cleanup() before being
turned off. Also, there's no locking.
Move the code to turn off all CRTCs from nv04_display_destroy() to
nouveau_display_destroy() so that it's called for both nv04 and nv50
and before drm_mode_config_cleanup(). Use drm_crtc_force_disable_all()
helper to save on code and have proper locking.
Cc: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/66daa161322444bbde05d83cb0210b90a66988a4.1465392124.git.lukas@wunner.de
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_display.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_display.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index 6072fe292db8..bd8d5bb2c885 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -554,6 +554,7 @@ nouveau_display_destroy(struct drm_device *dev) nouveau_display_vblank_fini(dev); drm_kms_helper_poll_fini(dev); + drm_crtc_force_disable_all(dev); drm_mode_config_cleanup(dev); if (disp->dtor) |