Re: [Intel-gfx] [PATCH] drm/i915: Clear bogus DMC BIOS/debug power well requests

2018-12-07 Thread Imre Deak
On Fri, Dec 07, 2018 at 07:13:05PM +0200, Ville Syrjälä wrote: > On Thu, Dec 06, 2018 at 02:23:00PM +0200, Imre Deak wrote: > > On Wed, Dec 05, 2018 at 10:20:23PM +0200, Ville Syrjala wrote: > > > From: Ville Syrjälä > > > > > > The DMC firmware is confused and forces on the BIOS and debug > > >

Re: [Intel-gfx] [PATCH] drm/i915: Clear bogus DMC BIOS/debug power well requests

2018-12-07 Thread Ville Syrjälä
On Thu, Dec 06, 2018 at 02:23:00PM +0200, Imre Deak wrote: > On Wed, Dec 05, 2018 at 10:20:23PM +0200, Ville Syrjala wrote: > > From: Ville Syrjälä > > > > The DMC firmware is confused and forces on the BIOS and debug > > power well requests for PW1 and MISC IO on some platforms. On > > BXT I mea

Re: [Intel-gfx] [PATCH] drm/i915: Clear bogus DMC BIOS/debug power well requests

2018-12-06 Thread Imre Deak
On Thu, Dec 06, 2018 at 02:23:00PM +0200, Imre Deak wrote: > On Wed, Dec 05, 2018 at 10:20:23PM +0200, Ville Syrjala wrote: > > From: Ville Syrjälä > > > > The DMC firmware is confused and forces on the BIOS and debug > > power well requests for PW1 and MISC IO on some platforms. On > > BXT I mea

Re: [Intel-gfx] [PATCH] drm/i915: Clear bogus DMC BIOS/debug power well requests

2018-12-06 Thread Imre Deak
On Wed, Dec 05, 2018 at 10:20:23PM +0200, Ville Syrjala wrote: > From: Ville Syrjälä > > The DMC firmware is confused and forces on the BIOS and debug > power well requests for PW1 and MISC IO on some platforms. On > BXT I measured this to waste about 10mW in the freeze system > suspend state wit

[Intel-gfx] [PATCH] drm/i915: Clear bogus DMC BIOS/debug power well requests

2018-12-05 Thread Ville Syrjala
From: Ville Syrjälä The DMC firmware is confused and forces on the BIOS and debug power well requests for PW1 and MISC IO on some platforms. On BXT I measured this to waste about 10mW in the freeze system suspend state with the SoC in s0. I didn't get conclusive numbers for s0ix on account of the