Re: [Intel-gfx] [PATCH] drm/i915: enable trickle feed on Haswell

2013-09-01 Thread Daniel Vetter
On Fri, Aug 30, 2013 at 08:25:52PM +0300, Ville Syrjälä wrote: > On Fri, Aug 23, 2013 at 07:51:28PM -0300, Paulo Zanoni wrote: > > From: Paulo Zanoni > > > > We shouldn't disable the trickle feed bits on Haswell. Our > > documentation explicitly says the trickle feed bits of PRI_CTL and > > CUR_C

Re: [Intel-gfx] [PATCH] drm/i915: enable trickle feed on Haswell

2013-08-30 Thread Ville Syrjälä
On Fri, Aug 23, 2013 at 07:51:28PM -0300, Paulo Zanoni wrote: > From: Paulo Zanoni > > We shouldn't disable the trickle feed bits on Haswell. Our > documentation explicitly says the trickle feed bits of PRI_CTL and > CUR_CTL should not be programmed to 1, and the hardware engineer also > asked us

[Intel-gfx] [PATCH] drm/i915: enable trickle feed on Haswell

2013-08-23 Thread Paulo Zanoni
From: Paulo Zanoni We shouldn't disable the trickle feed bits on Haswell. Our documentation explicitly says the trickle feed bits of PRI_CTL and CUR_CTL should not be programmed to 1, and the hardware engineer also asked us to not program the SPR_CTL field to 1. Leaving the bits as 1 could cause