Re: [PATCH v2 0/3] Replace Blitter ring based flips with MMIO flips

["Gupta, Sourab" <sourab.gupta@intel.com>]

On Thu, 2014-05-22 at 14:36 +0000, Gupta, Sourab wrote:
> From: Sourab Gupta <sourab.gupta@intel.com>
> 
> This patch series replaces Blitter ring based flips with MMIO based flips.
> This is useful for Media power well residency optimization. These may be
> enabled on architectures where Render and Blitter engines reside in different
> power wells.
> The blitter ring is currently being used just for command streamer based
> flip calls. For pure 3D workloads, with MMIO flips, there will be no use
> of blitter ring and this will ensure the 100% residency for Media well.
> 
> Sourab Gupta (3):
>   drm/i915: Replaced Blitter ring based flips with MMIO flips
>   drm/i915: Default to mmio flips on VLV
>   drm/i915: Fix mmio page flip vs mmio set base race
> 
>  drivers/gpu/drm/i915/i915_dma.c      |   1 +
>  drivers/gpu/drm/i915/i915_drv.h      |   6 ++
>  drivers/gpu/drm/i915/i915_gem.c      |   2 +-
>  drivers/gpu/drm/i915/i915_irq.c      |   3 +
>  drivers/gpu/drm/i915/i915_params.c   |   5 ++
>  drivers/gpu/drm/i915/intel_display.c | 135 +++++++++++++++++++++++++++++++++++
>  drivers/gpu/drm/i915/intel_drv.h     |   6 ++
>  7 files changed, 157 insertions(+), 1 deletion(-)
> 
Hi Ville/Chris,
I have tried to address your comments in these series of patches. Can
you please review them.
Thanks,
Sourab