[Intel-gfx] [PATCH] drm/i915: add FIFO watermark support
jbarnes at virtuousgeek.org
Wed Jun 24 18:28:49 CEST 2009
On Wed, 24 Jun 2009 15:31:43 +0800
Zhenyu Wang <zhenyuw at linux.intel.com> wrote:
> On 2009.06.24 14:00:07 +0800, Shaohua Li wrote:
> > updated patch. But I found inconsistent. In the doc at hand, the
> > value of fsb 400 should be 5, instead of 0, what's wrong?
> > This patch from Shaohua and myself adds FIFO watermark control to
> > the driver. This is needed for both power saving features on new
> > platforms with the so-called "big FIFO" and for controlling FIFO
> > allocation between pipes in multi-head configurations.
> > It's also necessary infrastructure to support things like
> > framebuffer compression and configuration supportability checks
> > (i.e. checking a configuration against available bandwidth).
> As we have a new chip support now, so please filter it out of this
> until we know how this might work on it. That's IGDNG.
Oh, it's likely to have hardware support, so we'll need to update the
Jesse Barnes, Intel Open Source Technology Center
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