On Fri, 05 Jun 2015, "mpe@xxxxxxxxxxxxxx" <michael@xxxxxxxxxx> wrote: > Hi Dave, > > Today's linux-next merge of the drm tree got a conflict in > drivers/gpu/drm/i915/intel_ringbuffer.c between commit 4f47c99a9be7 ("drm/i915: > Move WaBarrierPerformanceFixDisable:skl to skl code from chv code") from the > drm-intel-fixes tree and commit b62adbd1ea1f ("drm/i915/bxt: Move > WaForceEnableNonCoherent to Skylake only") from the drm tree. > > I fixed it up (see below) and can carry the fix as necessary (no action > is required). Our tree seems to have the if blocks the other way round. I don't think it matters, but Ville, Damien, chime in if you think it does. BR Jani. > > cheers > > diff --cc drivers/gpu/drm/i915/intel_ringbuffer.c > index 005b5e04de4d,d934f857394d..000000000000 > --- a/drivers/gpu/drm/i915/intel_ringbuffer.c > +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c > @@@ -1017,13 -1030,17 +1023,24 @@@ static int skl_init_workarounds(struct > WA_SET_BIT_MASKED(HIZ_CHICKEN, > BDW_HIZ_POWER_COMPILER_CLOCK_GATING_DISABLE); > > + if (INTEL_REVID(dev) == SKL_REVID_C0 || > + INTEL_REVID(dev) == SKL_REVID_D0) > + /* WaBarrierPerformanceFixDisable:skl */ > + WA_SET_BIT_MASKED(HDC_CHICKEN0, > + HDC_FENCE_DEST_SLM_DISABLE | > + HDC_BARRIER_PERFORMANCE_DISABLE); > + > + if (INTEL_REVID(dev) <= SKL_REVID_D0) { > + /* > + *Use Force Non-Coherent whenever executing a 3D context. This > + * is a workaround for a possible hang in the unlikely event > + * a TLB invalidation occurs during a PSD flush. > + */ > + /* WaForceEnableNonCoherent:skl */ > + WA_SET_BIT_MASKED(HDC_CHICKEN0, > + HDC_FORCE_NON_COHERENT); > + } > + > return skl_tune_iz_hashing(ring); > } > -- Jani Nikula, Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html