From: Daniel Vetter Date: Thu, 5 Jan 2012 00:05:26 +0000 (+0100) Subject: drm/i915: rip out the HWSTAM missed irq workaround X-Git-Tag: firefly_0821_release~3680^2~3623^2~3^2~6 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=bdfcdb63795b058bba9e78d32102b39014f649fe;p=firefly-linux-kernel-4.4.55.git drm/i915: rip out the HWSTAM missed irq workaround With the new ducttape of much finer quality, this seems to be no longer necessary. Tested on my ivb and snb machine with the usual suspects of testcases. (v2 by keithp -- limited change to IVB only for now) Signed-Off-by: Daniel Vetter Acked-by: Ben Widawsky Signed-off-by: Keith Packard --- diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 5d433fc11ace..5bd4361ea84d 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -1751,7 +1751,8 @@ 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) || IS_GEN7(dev)) { + + if (IS_GEN6(dev)) { /* Workaround stalls observed on Sandy Bridge GPUs by * making the blitter command streamer generate a * write to the Hardware Status Page for