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Commit bad7b7e6 authored by Michal Wajdeczko's avatar Michal Wajdeczko Committed by Chris Wilson
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drm/i915/huc: Use helper function while waiting for DMA completion 



Waiting for DMA status register can be done with dedicated function.
Lets use it as additional bonus will be smaller driver footprint.

Signed-off-by: default avatarMichal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171024105056.43276-1-michal.wajdeczko@intel.com
parent c41937fd

drivers/gpu/drm/i915/intel_huc.c

+1 −1
Original line number Diff line number Diff line
@@ -151,7 +151,7 @@ static int huc_ucode_xfer(struct intel_uc_fw *huc_fw, struct i915_vma *vma) 
	I915_WRITE(DMA_CTRL, _MASKED_BIT_ENABLE(HUC_UKERNEL | START_DMA));



	/* Wait for DMA to finish */

	ret = wait_for((I915_READ(DMA_CTRL) & START_DMA) == 0, 100);

	ret = intel_wait_for_register_fw(dev_priv, DMA_CTRL, START_DMA, 0, 100);



	DRM_DEBUG_DRIVER("HuC DMA transfer wait over with ret %d\n", ret);