[Intel-gfx] [PATCH] drm/i915: support FBC on Pineview

Jesse Barnes jbarnes at virtuousgeek.org
Thu Feb 11 19:22:49 CET 2010

On Tue, 9 Feb 2010 11:37:03 +0800
Shaohua Li <shaohua.li at intel.com> wrote:

> On Tue, Feb 09, 2010 at 09:08:58AM +0800, Jesse Barnes wrote:
> > Pineview seems to have FBC support (doesn't hang on my machine at
> > least, and seems to save power), so enable it to save power.
> Hi,
> Can you confirm if Pineview supports FBC. Last time I checked it and
> it causes hang and appears all FBC registers are always 0xffffffff
> and write will cause hang. But what I checked before isn't product
> chip, so please double check.

Good thing you had me check, yeah the regs just return all 1s, even on
production hardware.

Writes don't cause hangs though at least, but this patch is still

Eric please ignore/drop this one.

Jesse Barnes, Intel Open Source Technology Center

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