1 files changed, 116 insertions, 0 deletions
diff --git a/src/gallium/drivers/r600/r600_isa.c b/src/gallium/drivers/r600/r600_isa.c
new file mode 100644
index 00000000000..e3a29c3cdee
--- /dev/null
+++ b/src/gallium/drivers/r600/r600_isa.c
@@ -0,0 +1,116 @@
+/*
+ * Copyright 2012 Vadim Girlin <[email protected]>
+ *
+ * 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
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR(S) AND/OR THEIR SUPPLIERS 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.
+ *
+ * Authors:
+ *      Vadim Girlin
+ */
+
+#include "r600_pipe.h"
+#include "r600_isa.h"
+
+int r600_isa_init(struct r600_context *ctx, struct r600_isa *isa) {
+
+	assert(ctx->chip_class >= R600 && ctx->chip_class <= CAYMAN);
+	isa->hw_class = ctx->chip_class - R600;
+
+	assert(isa->hw_class >= ISA_CC_R600 && isa->hw_class <= ISA_CC_EVERGREEN);
+
+	/* reverse lookup maps are required for bytecode parsing only,
+	 * currently it's needed for handling the bytestream from llvm backend */
+#if defined R600_USE_LLVM || defined HAVE_OPENCL
+	unsigned i, use_llvm;
+
+	use_llvm = debug_get_bool_option("R600_LLVM", TRUE);
+
+	if (!use_llvm)
+		return 0;
+
+	isa->alu_op2_map = calloc(256, sizeof(unsigned));
+	if (!isa->alu_op2_map)
+		return -1;
+	isa->alu_op3_map = calloc(256, sizeof(unsigned));
+	if (!isa->alu_op3_map)
+		return -1;
+	isa->fetch_map = calloc(256, sizeof(unsigned));
+	if (!isa->fetch_map)
+		return -1;
+	isa->cf_map = calloc(256, sizeof(unsigned));
+	if (!isa->cf_map)
+		return -1;
+
+	for (i = 0; i < TABLE_SIZE(alu_op_table); ++i) {
+		const struct alu_op_info *op = &alu_op_table[i];
+		unsigned opc;
+		if (op->flags & AF_LDS || op->slots[isa->hw_class] == 0)
+			continue;
+		opc = op->opcode[isa->hw_class >> 1];
+		assert(opc != -1);
+		if (op->src_count == 3)
+			isa->alu_op3_map[opc] = i + 1;
+		else
+			isa->alu_op2_map[opc] = i + 1;
+	}
+
+	for (i = 0; i < TABLE_SIZE(fetch_op_table); ++i) {
+		const struct fetch_op_info *op = &fetch_op_table[i];
+		unsigned opc = op->opcode[isa->hw_class];
+		if ((op->flags & FF_GDS) || ((opc & 0xFF) != opc))
+			continue; /* ignore GDS ops and INST_MOD versions for now */
+		isa->fetch_map[opc] = i + 1;
+	}
+
+	for (i = 0; i < TABLE_SIZE(cf_op_table); ++i) {
+		const struct cf_op_info *op = &cf_op_table[i];
+		unsigned opc = op->opcode[isa->hw_class];
+		if (opc == -1)
+			continue;
+		/* using offset for CF_ALU_xxx opcodes because they overlap with other
+		 * CF opcodes (they use different encoding in hw) */
+		if (op->flags & CF_ALU)
+			opc += 0x80;
+		isa->cf_map[opc] = i + 1;
+	}
+
+#endif
+	return 0;
+}
+
+int r600_isa_destroy(struct r600_isa *isa) {
+
+	if (!isa)
+		return 0;
+
+	if (isa->alu_op2_map)
+		free(isa->alu_op2_map);
+	if (isa->alu_op3_map)
+		free(isa->alu_op3_map);
+	if (isa->fetch_map)
+		free(isa->fetch_map);
+	if (isa->cf_map)
+		free(isa->cf_map);
+
+	free(isa);
+	return 0;
+}
+
+
+