[Intel-gfx] [PATCH] drm/i915: rip out the HWSTAM missed irq workaround

Keith Packard keithp at keithp.com
Mon Jan 9 23:00:47 CET 2012

On Thu,  5 Jan 2012 23:11:53 +0100, Daniel Vetter <daniel.vetter at ffwll.ch> wrote:

> 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.

Eric suggested that unless we have evidence that the new work-around
fixes bugs on SNB, that we should continue to use the HWSTAM work-around
on that chip and use the RC6 voodoo on IVB, thus not potentially causing
regressions on SNB.

For back-porting to older kernels, that's obviously the right plan. I
think it's also the right plan for newer kernels, but I'd love to hear
alternate views on the matter.

keith.packard at intel.com
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