diff options
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_uncore.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index 1663ea55e37c..43cba129a0c0 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -1531,13 +1531,22 @@ static int (*intel_get_gpu_reset(struct drm_device *dev))(struct drm_device *) int intel_gpu_reset(struct drm_device *dev) { + struct drm_i915_private *dev_priv = to_i915(dev); int (*reset)(struct drm_device *); + int ret; reset = intel_get_gpu_reset(dev); if (reset == NULL) return -ENODEV; - return reset(dev); + /* If the power well sleeps during the reset, the reset + * request may be dropped and never completes (causing -EIO). + */ + intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL); + ret = reset(dev); + intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL); + + return ret; } bool intel_has_gpu_reset(struct drm_device *dev) |