Re: [Intel-gfx] [PATCH] drm/i915: Only enable IPS polling for gen5

2012-05-02 Thread Daniel Vetter
On Tue, May 01, 2012 at 07:45:02PM +0200, Daniel Vetter wrote: > On Tue, May 01, 2012 at 07:58:27AM -0700, Jesse Barnes wrote: > > On Mon, 30 Apr 2012 19:35:02 +0100 > > Chris Wilson wrote: > > > > > On SandyBridge IPS was entirely implemented in hardware and not reliant > > > on the driver monit

Re: [Intel-gfx] [PATCH] drm/i915: Only enable IPS polling for gen5

2012-05-01 Thread Daniel Vetter
On Tue, May 01, 2012 at 07:58:27AM -0700, Jesse Barnes wrote: > On Mon, 30 Apr 2012 19:35:02 +0100 > Chris Wilson wrote: > > > On SandyBridge IPS was entirely implemented in hardware and not reliant > > on the driver monitoring power consumption and feeding back desired run > > states, so the har

Re: [Intel-gfx] [PATCH] drm/i915: Only enable IPS polling for gen5

2012-05-01 Thread Jesse Barnes
On Mon, 30 Apr 2012 19:35:02 +0100 Chris Wilson wrote: > On SandyBridge IPS was entirely implemented in hardware and not reliant > on the driver monitoring power consumption and feeding back desired run > states, so the hardware is able to adapt quicker and more flexibly. Which > is a huge relief

[Intel-gfx] [PATCH] drm/i915: Only enable IPS polling for gen5

2012-04-30 Thread Chris Wilson
On SandyBridge IPS was entirely implemented in hardware and not reliant on the driver monitoring power consumption and feeding back desired run states, so the hardware is able to adapt quicker and more flexibly. Which is a huge relief for us as we no longer have to carry empirically derived magic a