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drm/i915/huc: Use helper function while waiting for DMA completion

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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: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171024105056.43276-1-michal.wajdeczko@intel.com
This commit is contained in:
Michal Wajdeczko 2017-10-24 10:50:56 +00:00 • committed by Chris Wilson
parent c41937fd99
commit bad7b7e674
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/intel_huc.c
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@ -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);