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authorIlia Mirkin <imirkin@alum.mit.edu>2014-01-23 02:45:02 -0500
committerBen Skeggs <bskeggs@redhat.com>2014-01-30 09:20:28 +1000
commitf3980dc50c5117a952baee7135aae50d48304af3 (patch)
tree34f162b4df261f10701e13e279cf09363023797c /drivers/gpu
parent09c3de135063f93d7137ad112f551f293b1204cf (diff)
downloadlinux-f3980dc50c5117a952baee7135aae50d48304af3.tar.bz2
drm/nouveau: resume display if any later suspend bits fail
If either idling channels or suspending the fence were to fail, the display would never be resumed. Also if a client fails, resume the fence (not functionally important, but it would potentially leak memory). See https://bugs.freedesktop.org/show_bug.cgi?id=70213 Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_drm.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index eecc6ca377c8..78c8e7146d56 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -503,19 +503,21 @@ nouveau_do_suspend(struct drm_device *dev)
if (drm->cechan) {
ret = nouveau_channel_idle(drm->cechan);
if (ret)
- return ret;
+ goto fail_display;
}
if (drm->channel) {
ret = nouveau_channel_idle(drm->channel);
if (ret)
- return ret;
+ goto fail_display;
}
NV_INFO(drm, "suspending client object trees...\n");
if (drm->fence && nouveau_fence(drm)->suspend) {
- if (!nouveau_fence(drm)->suspend(drm))
- return -ENOMEM;
+ if (!nouveau_fence(drm)->suspend(drm)) {
+ ret = -ENOMEM;
+ goto fail_display;
+ }
}
list_for_each_entry(cli, &drm->clients, head) {
@@ -537,6 +539,10 @@ fail_client:
nouveau_client_init(&cli->base);
}
+ if (drm->fence && nouveau_fence(drm)->resume)
+ nouveau_fence(drm)->resume(drm);
+
+fail_display:
if (dev->mode_config.num_crtc) {
NV_INFO(drm, "resuming display...\n");
nouveau_display_resume(dev);