From fad2596acb5e4e028266e820fd8b47e88030a4ca Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Fri, 30 Mar 2012 20:24:33 +0200 Subject: [PATCH] drm/i915: rip out old HWSTAM missed irq WA for vlv This got copy-pasted from an older version. The newer kinds of workarounds don't need this anymore. Shame on me for not noticing when picking up the vlv irq patch. Reviewed-by: Jesse Barnes Signed-Off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_irq.c | 12 ------------ 1 file changed, 12 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 06286a270b0..8496fa55122 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -1998,18 +1998,6 @@ static void valleyview_irq_preinstall(struct drm_device *dev) I915_WRITE(RING_IMR(GEN6_BSD_RING_BASE), 0); I915_WRITE(RING_IMR(BLT_RING_BASE), 0); - 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 - * MI_USER_INTERRUPT. This appears to serialize the - * previous seqno write out before the interrupt - * happens. - */ - I915_WRITE(GEN6_BLITTER_HWSTAM, ~GEN6_BLITTER_USER_INTERRUPT); - I915_WRITE(GEN6_BSD_HWSTAM, ~GEN6_BSD_USER_INTERRUPT); - } - /* and GT */ I915_WRITE(GTIIR, I915_READ(GTIIR)); I915_WRITE(GTIIR, I915_READ(GTIIR)); -- 2.11.4.GIT