Re: [Intel-gfx] [PATCH 3/7] drm/i915: Configure GEN6_RP_DOWN_TIMEOUT on CHV

2015-01-20 Thread Ville Syrjälä
On Tue, Jan 20, 2015 at 08:45:50AM +0530, Deepak S wrote: > > On Monday 19 January 2015 05:20 PM, ville.syrj...@linux.intel.com wrote: > > From: Ville Syrjälä > > > > CherryViewA0_iGfx_BIOS_DRIVER_PUNIT_spec_y14w28d5 tells us not to enable > > the RP down timeout interrupt, and says that the time

Re: [Intel-gfx] [PATCH 3/7] drm/i915: Configure GEN6_RP_DOWN_TIMEOUT on CHV

2015-01-19 Thread Deepak S
On Monday 19 January 2015 05:20 PM, ville.syrj...@linux.intel.com wrote: From: Ville Syrjälä CherryViewA0_iGfx_BIOS_DRIVER_PUNIT_spec_y14w28d5 tells us not to enable the RP down timeout interrupt, and says that the timeout value is hence not used. We do enable that interrupt currently though,

[Intel-gfx] [PATCH 3/7] drm/i915: Configure GEN6_RP_DOWN_TIMEOUT on CHV

2015-01-19 Thread ville . syrjala
From: Ville Syrjälä CherryViewA0_iGfx_BIOS_DRIVER_PUNIT_spec_y14w28d5 tells us not to enable the RP down timeout interrupt, and says that the timeout value is hence not used. We do enable that interrupt currently though, so leaving the timeout as 0 results in very poor performance as the GPU freq