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>
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.c b/drivers/gpu/drm/nouveau/nouveau_drv.c
index bb17057..13bb672 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.c
@@ -171,6 +171,9 @@
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 @@
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");