[Intel-gfx] [PATCH] drm/i915: Fix restore of 965 fence regs since the register tracing change.

Chris Wilson chris at chris-wilson.co.uk
Thu Nov 18 15:46:07 CET 2010

On Thu, 18 Nov 2010 11:47:12 +0800, Keith Packard <keithp at keithp.com> wrote:
> We were reading our 64-bit value in I915_READ64 and returning 32 bits
> of it.  The restoration of fence regs at resume then had a zero end
> value, and the fence had no effect.
> Version 2: Split register access functions into per-size versions

This also helps silence sparse since it doesn't seem able to do
compile-time constant propagation dead-code elimination. Minor,
yet annoying, issue.


Chris Wilson, Intel Open Source Technology Centre

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