[Intel-gfx] [PATCH] Disable frame buffer compression on ironlake

[Chris Wilson]

On Fri, 19 Nov 2010 10:00:03 +0800, "Alex,Shi" <alex.shi at intel.com> wrote:
>  Open fbc will cause about 1 Watts power increase on ironlake
>  for bltk-office/player benchmark. So just disable it and left
>  code here to waiting for better solution.

FBC is disabled through the chicken bits, so I am really curious to know
where the power saving is coming from. I just want to verify that we have
not made a fundamental mistake in our FBC logic that is consuming more
power than is necessary across all platforms.

In terms of code clarity, we should leave a note as to why we explicitly
disable fbc, e.g.: .has_fbc = 0, /* hardware support is buggy */
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre