intel/compiler/gen10: Disable push constants.
We still have gpu hangs on Cannonlake when using push constants, so disable them for now until we have a proper fix for these hangs. v2: Add warning message when creating context too. Signed-off-by: Rafael Antognolli <rafael.antognolli@intel.com> Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Kenneth Graunke <kenneth@whitecape.org> Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
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@ -2096,6 +2096,15 @@ fs_visitor::assign_constant_locations()
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if (subgroup_id_index >= 0)
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max_push_components--; /* Save a slot for the thread ID */
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/* FIXME: We currently have some GPU hangs that happen apparently when using
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* push constants. Since we have no solution for such hangs yet, just
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* go ahead and use pull constants for now.
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*/
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if (devinfo->gen == 10 && compiler->supports_pull_constants) {
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compiler->shader_perf_log(log_data, "Disabling push constants.");
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max_push_components = 0;
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}
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/* We push small arrays, but no bigger than 16 floats. This is big enough
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* for a vec4 but hopefully not large enough to push out other stuff. We
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* should probably use a better heuristic at some point.
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@ -1022,6 +1022,13 @@ brwCreateContext(gl_api api,
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return false;
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}
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if (devinfo->gen == 10) {
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fprintf(stderr,
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"WARNING: i965 does not fully support Gen10 yet.\n"
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"Instability or lower performance might occur.\n");
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}
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brw_init_state(brw);
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intelInitExtensions(ctx);
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