Re: [Intel-gfx] [PATCH] drm/i915: Enable provoking vertex fix on Gen9 systems.

2018-06-18 Thread Chris Wilson
Quoting Joonas Lahtinen (2018-06-18 10:03:24) > Quoting Chris Wilson (2018-06-15 22:06:05) > > From: Kenneth Graunke > > > > The SF and clipper units mishandle the provoking vertex in some cases, > > which can cause misrendering with shaders that use flat shaded inputs. > > > > There are chicken

Re: [Intel-gfx] [PATCH] drm/i915: Enable provoking vertex fix on Gen9 systems.

2018-06-18 Thread Joonas Lahtinen
Quoting Chris Wilson (2018-06-15 22:06:05) > From: Kenneth Graunke > > The SF and clipper units mishandle the provoking vertex in some cases, > which can cause misrendering with shaders that use flat shaded inputs. > > There are chicken bits in 3D_CHICKEN3 (for SF) and FF_SLICE_CHICKEN > (for th

Re: [Intel-gfx] [PATCH] drm/i915: Enable provoking vertex fix on Gen9 systems.

2018-06-15 Thread Kenneth Graunke
On Friday, June 15, 2018 12:06:05 PM PDT Chris Wilson wrote: > From: Kenneth Graunke > > The SF and clipper units mishandle the provoking vertex in some cases, > which can cause misrendering with shaders that use flat shaded inputs. > > There are chicken bits in 3D_CHICKEN3 (for SF) and FF_SLICE

[Intel-gfx] [PATCH] drm/i915: Enable provoking vertex fix on Gen9 systems.

2018-06-15 Thread Chris Wilson
From: Kenneth Graunke The SF and clipper units mishandle the provoking vertex in some cases, which can cause misrendering with shaders that use flat shaded inputs. There are chicken bits in 3D_CHICKEN3 (for SF) and FF_SLICE_CHICKEN (for the clipper) that work around the issue. These registers a

Re: [Intel-gfx] [PATCH] drm/i915: Enable provoking vertex fix on Gen9+ systems.

2018-06-15 Thread Chris Wilson
Quoting Kenneth Graunke (2018-06-14 22:53:28) > The SF and clipper units mishandle the provoking vertex in some cases, > which can cause misrendering with shaders that use flat shaded inputs. > > There are chicken bits in 3D_CHICKEN3 (for SF) and FF_SLICE_CHICKEN > (for the clipper) that work arou

[Intel-gfx] [PATCH] drm/i915: Enable provoking vertex fix on Gen9+ systems.

2018-06-14 Thread Kenneth Graunke
The SF and clipper units mishandle the provoking vertex in some cases, which can cause misrendering with shaders that use flat shaded inputs. There are chicken bits in 3D_CHICKEN3 (for SF) and FF_SLICE_CHICKEN (for the clipper) that work around the issue. These registers are unfortunately not par