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authorDave Airlie <airlied@redhat.com>2010-12-07 09:20:40 +1000
committerDave Airlie <airlied@redhat.com>2011-01-05 13:45:30 +1000
commit5bcf719b7db0f9366cedaf102b081f99b1c325ae (patch)
tree6929d42e1d61a3b1bd7b130a37a80b99718e14aa /drivers/gpu/drm/nouveau/nouveau_drv.c
parent8d608aa6295242fe4c4b6105b8c59c6a5b232d89 (diff)
drm/switcheroo: track state of switch in drivers.
We need to track the state of the switch in drivers, so that after s/r we don't resume the card we've explicitly switched off before. Also don't allow a userspace open to occur if we've switched the gpu off. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_drv.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_drv.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.c b/drivers/gpu/drm/nouveau/nouveau_drv.c
index bb170570938..13bb672a16f 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.c
@@ -171,6 +171,9 @@ nouveau_pci_suspend(struct pci_dev *pdev, pm_message_t pm_state)
if (pm_state.event == PM_EVENT_PRETHAW)
return 0;
+ if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
+ return 0;
+
NV_INFO(dev, "Disabling fbcon acceleration...\n");
nouveau_fbcon_save_disable_accel(dev);
@@ -254,6 +257,9 @@ nouveau_pci_resume(struct pci_dev *pdev)
struct drm_crtc *crtc;
int ret, i;
+ if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
+ return 0;
+
nouveau_fbcon_save_disable_accel(dev);
NV_INFO(dev, "We're back, enabling device...\n");