From: Sagar Kamble <sagar.a.kamble@xxxxxxxxx> The firmware loader will use GuC DMA engine to move data from ggtt to WOPCM. Need to take forcewake before GuC loading. Issue: VIZ-4884 Change-Id: Ie422fc1e122933b161ff63cab23622197e6bba54 Signed-off-by: Sagar Kamble <sagar.a.kamble@xxxxxxxxx> --- drivers/gpu/drm/i915/intel_guc_loader.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_guc_loader.c b/drivers/gpu/drm/i915/intel_guc_loader.c index 3a33618..2edf329 100644 --- a/drivers/gpu/drm/i915/intel_guc_loader.c +++ b/drivers/gpu/drm/i915/intel_guc_loader.c @@ -338,6 +338,7 @@ static int guc_load_ucode(struct drm_device *dev) int ret; WARN_ON(!mutex_is_locked(&dev->struct_mutex)); + intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL); ret = i915_gem_obj_ggtt_pin(guc_fw->uc_fw_obj, 0, 0); if (ret) @@ -386,6 +387,8 @@ out: if (pinned) i915_gem_object_ggtt_unpin(guc_fw->uc_fw_obj); + intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL); + return ret; } -- 1.9.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
