Call drm_mode_config_reset() after an invalidation event to restore any cached state to unknown.
Signed-off-by: Chris Wilson chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/i915_drv.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 66796bb..e517447 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -354,6 +354,7 @@ static int i915_drm_thaw(struct drm_device *dev) error = i915_gem_init_ringbuffer(dev); mutex_unlock(&dev->struct_mutex);
+ drm_mode_config_reset(dev); drm_irq_install(dev);
/* Resume the modeset for every activated CRTC */ @@ -542,6 +543,7 @@ int i915_reset(struct drm_device *dev, u8 flags)
mutex_unlock(&dev->struct_mutex); drm_irq_uninstall(dev); + drm_mode_config_reset(dev); drm_irq_install(dev); mutex_lock(&dev->struct_mutex); }