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drm/i915: apply HWSTAM writes to Ivy Bridge as well

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In an attempt to fix 38862 and 38863.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Tested-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Jesse Barnes 2011-07-01 11:08:56 -07:00 committed by Keith Packard
parent f71d4af4cd
commit 2b1ecb7337
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/i915_irq.c
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@ -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