iris: Explicitly emit 3DSTATE_BTP_XS on Gen9 with DIRTY_CONSTANTS_XS
Right now, we usually flag both IRIS_DIRTY_{CONSTANTS,BINDINGS}_XS, because we have SURFACE_STATE for constant buffers in case the shaders access them via pull mode. But this flagging is overkill in many cases. Gen8 and Gen11 don't need it at all. Gen9 doesn't need that large of a hammer in all cases. Just handle it explicitly so the right thing happens. Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
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@ -4913,7 +4913,12 @@ iris_upload_dirty_render_state(struct iris_context *ice,
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}
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for (int stage = 0; stage <= MESA_SHADER_FRAGMENT; stage++) {
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if (dirty & (IRIS_DIRTY_BINDINGS_VS << stage)) {
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/* Gen9 requires 3DSTATE_BINDING_TABLE_POINTERS_XS to be re-emitted
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* in order to commit constants. TODO: Investigate "Disable Gather
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* at Set Shader" to go back to legacy mode...
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*/
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if (dirty & ((IRIS_DIRTY_BINDINGS_VS |
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(GEN_GEN == 9 ? IRIS_DIRTY_CONSTANTS_VS : 0)) << stage)) {
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iris_emit_cmd(batch, GENX(3DSTATE_BINDING_TABLE_POINTERS_VS), ptr) {
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ptr._3DCommandSubOpcode = 38 + stage;
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ptr.PointertoVSBindingTable = binder->bt_offset[stage];
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