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authorTobias Klausmann <tobias.johannes.klausmann@mni.thm.de>2019-03-28 16:17:31 +0300
committerBen Skeggs <bskeggs@redhat.com>2019-05-01 04:08:39 +0300
commit30df16b93b25fe345e4c5d4e9c789d3f4f337b72 (patch)
tree98c928cef9151847a39bf7783d6338d4026d8a3a /drivers/gpu/drm/nouveau/nouveau_drm.c
parenta2f07d4c1e88d4250b5d1d3b54efcdb3d80f11da (diff)
downloadlinux-30df16b93b25fe345e4c5d4e9c789d3f4f337b72.tar.xz
drm/nouveau/nouveau: forward error generated while resuming objects tree
On a failed resume we may experience unrecoverable errors. Plumb the error code through to actually let the driver fail. On a reverse-prime setup this helps the drm subsystem to at least recover the integrated gpu. This can especially happen with secboot timing out, leaving the hardware in a non-functioning state. Signed-off-by: Tobias Klausmann <tobias.johannes.klausmann@mni.thm.de> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_drm.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_drm.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index 6ab9033f49da..22cd45845e07 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -802,10 +802,15 @@ fail_display:
static int
nouveau_do_resume(struct drm_device *dev, bool runtime)
{
+ int ret = 0;
struct nouveau_drm *drm = nouveau_drm(dev);
NV_DEBUG(drm, "resuming object tree...\n");
- nvif_client_resume(&drm->master.base);
+ ret = nvif_client_resume(&drm->master.base);
+ if (ret) {
+ NV_ERROR(drm, "Client resume failed with error: %d\n", ret);
+ return ret;
+ }
NV_DEBUG(drm, "resuming fence...\n");
if (drm->fence && nouveau_fence(drm)->resume)
@@ -925,6 +930,7 @@ nouveau_pmops_runtime_resume(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct drm_device *drm_dev = pci_get_drvdata(pdev);
+ struct nouveau_drm *drm = nouveau_drm(drm_dev);
struct nvif_device *device = &nouveau_drm(drm_dev)->client.device;
int ret;
@@ -941,6 +947,10 @@ nouveau_pmops_runtime_resume(struct device *dev)
pci_set_master(pdev);
ret = nouveau_do_resume(drm_dev, true);
+ if (ret) {
+ NV_ERROR(drm, "resume failed with: %d\n", ret);
+ return ret;
+ }
/* do magic */
nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));