On Wed, Feb 26, 2014 at 11:59:30PM -0800, Kenneth Graunke wrote: > I believe this will be necessary on production hardware. > > Signed-off-by: Kenneth Graunke <[email protected]> > --- > drivers/gpu/drm/i915/i915_reg.h | 3 +++ > drivers/gpu/drm/i915/intel_pm.c | 4 ++++ > 2 files changed, 7 insertions(+) > > I just realized tonight that my workarounds series never got merged. > > After reviewing Ben and Chris's comments, I agree with all of them, so > I've dropped the unnecessary patches. I also believe I shouldn't need > the pre-production workarounds I sent last time, so I've dropped those. > > These two should apply to production hardware, so we probably want them. > > diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h > index ad75ff7..f36d5e0 100644 > --- a/drivers/gpu/drm/i915/i915_reg.h > +++ b/drivers/gpu/drm/i915/i915_reg.h > @@ -5050,6 +5050,9 @@ > #define GEN7_SINGLE_SUBSCAN_DISPATCH_ENABLE (1<<10) > #define GEN7_PSD_SINGLE_PORT_DISPATCH_ENABLE (1<<3) > > +#define GEN8_ROW_CHICKEN 0xe4f0 > +#define PARTIAL_INSTRUCTION_SHOOTDOWN_DISABLE (1<<8) > + > #define GEN7_ROW_CHICKEN2 0xe4f4 > #define GEN7_ROW_CHICKEN2_GT2 0xf4f4 > #define DOP_CLOCK_GATING_DISABLE (1<<0) > diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c > index 4f01b04..df8ad21 100644 > --- a/drivers/gpu/drm/i915/intel_pm.c > +++ b/drivers/gpu/drm/i915/intel_pm.c > @@ -4838,6 +4838,10 @@ static void gen8_init_clock_gating(struct drm_device > *dev) > /* FIXME(BDW): Check all the w/a, some might only apply to > * pre-production hw. */ > > + /* WaDisablePartialInstShootdown */
+:bdw Apart from that: Reviewed-by: Ville Syrjälä <[email protected]> > + I915_WRITE(GEN8_ROW_CHICKEN, > + _MASKED_BIT_ENABLE(PARTIAL_INSTRUCTION_SHOOTDOWN_DISABLE)); > + > /* > * This GEN8_CENTROID_PIXEL_OPT_DIS W/A is only needed for > * pre-production hardware > -- > 1.8.4.2 > > _______________________________________________ > Intel-gfx mailing list > [email protected] > http://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Ville Syrjälä Intel OTC _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
