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/include/drm/drmP.h b/include/drm/drmP.h
index 0f14f94..a4694c6 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1121,9 +1121,13 @@
spinlock_t object_name_lock;
struct idr object_name_idr;
/*@} */
-
+ int switch_power_state;
};
+#define DRM_SWITCH_POWER_ON 0
+#define DRM_SWITCH_POWER_OFF 1
+#define DRM_SWITCH_POWER_CHANGING 2
+
static __inline__ int drm_core_check_feature(struct drm_device *dev,
int feature)
{