On Monday, September 11, 2017 5:48:25 AM PDT Topi Pohjolainen wrote: > Signed-off-by: Topi Pohjolainen <topi.pohjolai...@intel.com> > --- > src/intel/blorp/blorp_genX_exec.h | 11 +++++++++++ > 1 file changed, 11 insertions(+) > > diff --git a/src/intel/blorp/blorp_genX_exec.h > b/src/intel/blorp/blorp_genX_exec.h > index 5f9a8ab4a5..5389262098 100644 > --- a/src/intel/blorp/blorp_genX_exec.h > +++ b/src/intel/blorp/blorp_genX_exec.h > @@ -1454,6 +1454,17 @@ blorp_emit_gen8_hiz_op(struct blorp_batch *batch, > if (params->stencil.enabled) > assert(params->hiz_op == BLORP_HIZ_OP_DEPTH_CLEAR); > > + /* From the BDW PRM Volume 2, 3DSTATE_WM_HZ_OP: > + * > + * 3DSTATE_MULTISAMPLE packet must be used prior to this packet to change > + * the Number of Multisamples. This packet must not be used to change > + * Number of Multisamples in a rendering sequence. > + * > + * Since HIZ may be the first thing in a batch buffer, play safe and > always > + * emit 3DSTATE_MULTISAMPLE. > + */ > + blorp_emit_3dstate_multisample(batch, params); > + > /* If we can't alter the depth stencil config and multiple layers are > * involved, the HiZ op will fail. This is because the op requires that a > * new config is emitted for each additional layer. >
Reviewed-by: Kenneth Graunke <kenn...@whitecape.org>
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