On Wed, 03 Jun 2015, Ben Widawsky <benjamin.widaw...@intel.com> wrote: > in > commit 65ca7514e21adbee25b8175fc909759c735d00ff > Author: Damien Lespiau <damien.lesp...@intel.com> > Date: Mon Feb 9 19:33:22 2015 +0000 > > drm/i915/skl: Implement WaBarrierPerformanceFixDisable > > The workaround ended up in the chv workarounds. Not sure what the reason or > history of that is, but it /seems/ wrong. Don't know if this fixes anything > since I have many other problems with my platform. > > Cc: Damien Lespiau <damien.lesp...@intel.com> > Cc: Nick Hoath <nicholas.ho...@intel.com> > Signed-off-by: Ben Widawsky <b...@bwidawsk.net>
Ville beat you to it [1]. However he put it in skl workarounds, not gen9, so I'm presuming this does not apply to bxt. BR, Jani. [1] http://mid.gmane.org/1433248657-4509-1-git-send-email-ville.syrj...@linux.intel.com > --- > drivers/gpu/drm/i915/intel_ringbuffer.c | 14 +++++++------- > 1 file changed, 7 insertions(+), 7 deletions(-) > > diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c > b/drivers/gpu/drm/i915/intel_ringbuffer.c > index d934f85..0fd6033d 100644 > --- a/drivers/gpu/drm/i915/intel_ringbuffer.c > +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c > @@ -901,13 +901,6 @@ static int chv_init_workarounds(struct intel_engine_cs > *ring) > GEN6_WIZ_HASHING_MASK, > GEN6_WIZ_HASHING_16x4); > > - 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); > - > return 0; > } > > @@ -972,6 +965,13 @@ static int gen9_init_workarounds(struct intel_engine_cs > *ring) > tmp |= HDC_FORCE_CSR_NON_COHERENT_OVR_DISABLE; > WA_SET_BIT_MASKED(HDC_CHICKEN0, tmp); > > + 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); > + > return 0; > } > > -- > 2.4.2 > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Jani Nikula, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
