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drm/i915: Reset state after a GPU reset or resume

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Call drm_mode_config_reset() after an invalidation event to restore any
cached state to unknown.

Tested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2011-01-24 15:14:41 +00:00
parent eb03355660
commit 500f7147cf
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/i915/i915_drv.c
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@ -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);
}