--- /dev/null
+/*
+ * Copyright (c) 2020 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "brw_nir_rt.h"
+#include "brw_nir_rt_builder.h"
+
+static void
+lower_rt_intrinsics_impl(nir_function_impl *impl,
+ const struct gen_device_info *devinfo)
+{
+ nir_builder build;
+ nir_builder_init(&build, impl);
+ nir_builder *b = &build;
+
+ b->cursor = nir_before_block(nir_start_block(b->impl));
+
+ struct brw_nir_rt_globals_defs globals;
+ brw_nir_rt_load_globals(b, &globals);
+
+ nir_foreach_block(block, impl) {
+ nir_foreach_instr_safe(instr, block) {
+ if (instr->type != nir_instr_type_intrinsic)
+ continue;
+
+ nir_intrinsic_instr *intrin = nir_instr_as_intrinsic(instr);
+
+ b->cursor = nir_after_instr(&intrin->instr);
+
+ nir_ssa_def *sysval = NULL;
+ switch (intrin->intrinsic) {
+ case nir_intrinsic_load_ray_base_mem_addr_intel:
+ sysval = globals.base_mem_addr;
+ break;
+
+ case nir_intrinsic_load_ray_hw_stack_size_intel:
+ sysval = nir_imul_imm(b, globals.hw_stack_size, 64);
+ break;
+
+ case nir_intrinsic_load_ray_sw_stack_size_intel:
+ sysval = nir_imul_imm(b, globals.sw_stack_size, 64);
+ break;
+
+ case nir_intrinsic_load_ray_num_dss_rt_stacks_intel:
+ sysval = globals.num_dss_rt_stacks;
+ break;
+
+ default:
+ continue;
+ }
+
+ if (sysval) {
+ nir_ssa_def_rewrite_uses(&intrin->dest.ssa,
+ nir_src_for_ssa(sysval));
+ nir_instr_remove(&intrin->instr);
+ }
+ }
+ }
+
+ nir_metadata_preserve(impl, nir_metadata_block_index |
+ nir_metadata_dominance);
+}
+
+void
+brw_nir_lower_rt_intrinsics(nir_shader *nir,
+ const struct gen_device_info *devinfo)
+{
+ nir_foreach_function(function, nir) {
+ if (function->impl)
+ lower_rt_intrinsics_impl(function->impl, devinfo);
+ }
+}
--- /dev/null
+/*
+ * Copyright © 2020 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef BRW_NIR_RT_H
+#define BRW_NIR_RT_H
+
+#include "brw_nir.h"
+#include "brw_rt.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void brw_nir_lower_rt_intrinsics(nir_shader *shader,
+ const struct gen_device_info *devinfo);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BRW_NIR_RT_H */