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Commit 2b1ecb73 authored by Jesse Barnes's avatar Jesse Barnes Committed by Keith Packard
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drm/i915: apply HWSTAM writes to Ivy Bridge as well 



In an attempt to fix 38862 and 38863.

Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
Tested-by: default avatarKenneth Graunke <kenneth@whitecape.org>
Signed-off-by: default avatarKeith Packard <keithp@keithp.com>
parent f71d4af4

drivers/gpu/drm/i915/i915_irq.c

+1 −1
Original line number Diff line number Diff line
@@ -1740,7 +1740,7 @@ static void ironlake_irq_preinstall(struct drm_device *dev) 
		INIT_WORK(&dev_priv->rps_work, gen6_pm_rps_work);



	I915_WRITE(HWSTAM, 0xeffe);

	if (IS_GEN6(dev)) {

	if (IS_GEN6(dev) || IS_GEN7(dev)) {

		/* Workaround stalls observed on Sandy Bridge GPUs by

		 * making the blitter command streamer generate a

		 * write to the Hardware Status Page for