drm/i915: make the blitter report buffer modifications to the FBC unit

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Without this change, blits to the front buffer won't invalidate FBC
state, causing us to scan out stale data.  Make sure we update these
bits on every FBC enable, since they may get clobbered if we shut off
the display.

References: https://bugzilla.kernel.org/show_bug.cgi?id=26932
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

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Jesse Barnes 2011-01-18 11:25:41 -08:00 • committed by Chris Wilson

parent 1ffa325bac

commit 4efe070896

2 changed files with 25 additions and 0 deletions

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4

drivers/gpu/drm/i915/i915_reg.h

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21

drivers/gpu/drm/i915/intel_display.c

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