On Tue, May 19, 2015 at 03:39:25PM +0100, Damien Lespiau wrote: > On Tue, May 19, 2015 at 03:04:59PM +0300, Imre Deak wrote: > > Also make the WA comment consistent with the rest, where the stepping > > info is not shown. > > > > Signed-off-by: Imre Deak <imre.deak@xxxxxxxxx> > > --- > > drivers/gpu/drm/i915/intel_ringbuffer.c | 9 +++------ > > 1 file changed, 3 insertions(+), 6 deletions(-) > > > > [ The patchset is a follow-up to: > > http://lists.freedesktop.org/archives/intel-gfx/2015-May/065989.html ] > > > > diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c > > index 9b96ed7..461b9be 100644 > > --- a/drivers/gpu/drm/i915/intel_ringbuffer.c > > +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c > > @@ -961,12 +961,9 @@ static int gen9_init_workarounds(struct intel_engine_cs *ring) > > WA_CLR_BIT_MASKED(GEN9_HALF_SLICE_CHICKEN5, > > GEN9_CCS_TLB_PREFETCH_ENABLE); > > > > - /* > > - * FIXME: don't apply the following on BXT for stepping C. On BXT A0 > > - * the flag reads back as 0. > > - */ > > - /* WaDisableMaskBasedCammingInRCC:sklC,bxtA */ > > - if (INTEL_REVID(dev) == SKL_REVID_C0 || IS_BROXTON(dev)) > > + /* WaDisableMaskBasedCammingInRCC:skl,bxt */ > > For the record, there seem to be some confusion in the W/A db: > > - The W/A seems to have been renamed to WaDisablePixelMaskBasedCammingInRcpbe > and indeed there's a bit to do that, but the bug in question talks > about bit 14 of 7308, which is the disabling bit for the RCC unit > - The W/A isn't listed in the W/A db for BXT > > In doubt, defaulting to trusting the spec and bug db is probably the > saner option, so: > > Reviewed-by: Damien Lespiau <damien.lespiau@xxxxxxxxx> Spoke too soon. This register is in the render context so has to be written from the ring... -- Damien _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
