assembler: Update the disassembler code

From Mesa. This imports a bit more the of brw_eu* infrastructure (which
is going towards the right direction!) from mesa and the update is quite
a significant improvement over what we had.

I also verified that the changes that were done on the assembler old
version of brw_disasm.c were already supported by the Mesa version, and
indeed they were.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>

1 files changed, 405 insertions, 0 deletions

diff --git a/assembler/brw_eu.h b/assembler/brw_eu.h
new file mode 100644
index 00000000..b7009ffa
--- /dev/null
+++ b/assembler/brw_eu.h
@@ -0,0 +1,405 @@
+/*
+ Copyright (C) Intel Corp.  2006.  All Rights Reserved.
+ Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
+ develop this 3D driver.
+ 
+ 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 COPYRIGHT OWNER(S) AND/OR ITS 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:
+  *   Keith Whitwell <keith@tungstengraphics.com>
+  */
+   
+
+#ifndef BRW_EU_H
+#define BRW_EU_H
+
+#include <stdbool.h>
+#include "brw_structs.h"
+#include "brw_defines.h"
+#include "brw_reg.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define BRW_EU_MAX_INSN_STACK 5
+
+struct brw_compile {
+   struct brw_instruction *store;
+   int store_size;
+   GLuint nr_insn;
+   unsigned int next_insn_offset;
+
+   void *mem_ctx;
+
+   /* Allow clients to push/pop instruction state:
+    */
+   struct brw_instruction stack[BRW_EU_MAX_INSN_STACK];
+   bool compressed_stack[BRW_EU_MAX_INSN_STACK];
+   struct brw_instruction *current;
+
+   GLuint flag_value;
+   bool single_program_flow;
+   bool compressed;
+   struct brw_context *brw;
+
+   /* Control flow stacks:
+    * - if_stack contains IF and ELSE instructions which must be patched
+    *   (and popped) once the matching ENDIF instruction is encountered.
+    *
+    *   Just store the instruction pointer(an index).
+    */
+   int *if_stack;
+   int if_stack_depth;
+   int if_stack_array_size;
+
+   /**
+    * loop_stack contains the instruction pointers of the starts of loops which
+    * must be patched (and popped) once the matching WHILE instruction is
+    * encountered.
+    */
+   int *loop_stack;
+   /**
+    * pre-gen6, the BREAK and CONT instructions had to tell how many IF/ENDIF
+    * blocks they were popping out of, to fix up the mask stack.  This tracks
+    * the IF/ENDIF nesting in each current nested loop level.
+    */
+   int *if_depth_in_loop;
+   int loop_stack_depth;
+   int loop_stack_array_size;
+};
+
+static inline struct brw_instruction *current_insn( struct brw_compile *p)
+{
+   return &p->store[p->nr_insn];
+}
+
+void brw_pop_insn_state( struct brw_compile *p );
+void brw_push_insn_state( struct brw_compile *p );
+void brw_set_mask_control( struct brw_compile *p, GLuint value );
+void brw_set_saturate( struct brw_compile *p, bool enable );
+void brw_set_access_mode( struct brw_compile *p, GLuint access_mode );
+void brw_set_compression_control(struct brw_compile *p, enum brw_compression c);
+void brw_set_predicate_control_flag_value( struct brw_compile *p, GLuint value );
+void brw_set_predicate_control( struct brw_compile *p, GLuint pc );
+void brw_set_predicate_inverse(struct brw_compile *p, bool predicate_inverse);
+void brw_set_conditionalmod( struct brw_compile *p, GLuint conditional );
+void brw_set_flag_reg(struct brw_compile *p, int reg, int subreg);
+void brw_set_acc_write_control(struct brw_compile *p, GLuint value);
+
+void brw_init_compile(struct brw_context *, struct brw_compile *p,
+		      void *mem_ctx);
+void brw_dump_compile(struct brw_compile *p, FILE *out, int start, int end);
+const GLuint *brw_get_program( struct brw_compile *p, GLuint *sz );
+
+struct brw_instruction *brw_next_insn(struct brw_compile *p, GLuint opcode);
+void brw_set_dest(struct brw_compile *p, struct brw_instruction *insn,
+		  struct brw_reg dest);
+void brw_set_src0(struct brw_compile *p, struct brw_instruction *insn,
+		  struct brw_reg reg);
+
+void gen6_resolve_implied_move(struct brw_compile *p,
+			       struct brw_reg *src,
+			       GLuint msg_reg_nr);
+
+/* Helpers for regular instructions:
+ */
+#define ALU1(OP)					\
+struct brw_instruction *brw_##OP(struct brw_compile *p,	\
+	      struct brw_reg dest,			\
+	      struct brw_reg src0);
+
+#define ALU2(OP)					\
+struct brw_instruction *brw_##OP(struct brw_compile *p,	\
+	      struct brw_reg dest,			\
+	      struct brw_reg src0,			\
+	      struct brw_reg src1);
+
+#define ALU3(OP)					\
+struct brw_instruction *brw_##OP(struct brw_compile *p,	\
+	      struct brw_reg dest,			\
+	      struct brw_reg src0,			\
+	      struct brw_reg src1,			\
+	      struct brw_reg src2);
+
+#define ROUND(OP) \
+void brw_##OP(struct brw_compile *p, struct brw_reg dest, struct brw_reg src0);
+
+ALU1(MOV)
+ALU2(SEL)
+ALU1(NOT)
+ALU2(AND)
+ALU2(OR)
+ALU2(XOR)
+ALU2(SHR)
+ALU2(SHL)
+ALU2(RSR)
+ALU2(RSL)
+ALU2(ASR)
+ALU2(JMPI)
+ALU2(ADD)
+ALU2(AVG)
+ALU2(MUL)
+ALU1(FRC)
+ALU1(RNDD)
+ALU2(MAC)
+ALU2(MACH)
+ALU1(LZD)
+ALU2(DP4)
+ALU2(DPH)
+ALU2(DP3)
+ALU2(DP2)
+ALU2(LINE)
+ALU2(PLN)
+ALU3(MAD)
+
+ROUND(RNDZ)
+ROUND(RNDE)
+
+#undef ALU1
+#undef ALU2
+#undef ALU3
+#undef ROUND
+
+
+/* Helpers for SEND instruction:
+ */
+void brw_set_sampler_message(struct brw_compile *p,
+                             struct brw_instruction *insn,
+                             GLuint binding_table_index,
+                             GLuint sampler,
+                             GLuint msg_type,
+                             GLuint response_length,
+                             GLuint msg_length,
+                             GLuint header_present,
+                             GLuint simd_mode,
+                             GLuint return_format);
+
+void brw_set_dp_read_message(struct brw_compile *p,
+			     struct brw_instruction *insn,
+			     GLuint binding_table_index,
+			     GLuint msg_control,
+			     GLuint msg_type,
+			     GLuint target_cache,
+			     GLuint msg_length,
+                             bool header_present,
+			     GLuint response_length);
+
+void brw_set_dp_write_message(struct brw_compile *p,
+			      struct brw_instruction *insn,
+			      GLuint binding_table_index,
+			      GLuint msg_control,
+			      GLuint msg_type,
+			      GLuint msg_length,
+			      bool header_present,
+			      GLuint last_render_target,
+			      GLuint response_length,
+			      GLuint end_of_thread,
+			      GLuint send_commit_msg);
+
+void brw_urb_WRITE(struct brw_compile *p,
+		   struct brw_reg dest,
+		   GLuint msg_reg_nr,
+		   struct brw_reg src0,
+		   bool allocate,
+		   bool used,
+		   GLuint msg_length,
+		   GLuint response_length,
+		   bool eot,
+		   bool writes_complete,
+		   GLuint offset,
+		   GLuint swizzle);
+
+void brw_ff_sync(struct brw_compile *p,
+		   struct brw_reg dest,
+		   GLuint msg_reg_nr,
+		   struct brw_reg src0,
+		   bool allocate,
+		   GLuint response_length,
+		   bool eot);
+
+void brw_svb_write(struct brw_compile *p,
+                   struct brw_reg dest,
+                   GLuint msg_reg_nr,
+                   struct brw_reg src0,
+                   GLuint binding_table_index,
+                   bool   send_commit_msg);
+
+void brw_fb_WRITE(struct brw_compile *p,
+		  int dispatch_width,
+		   GLuint msg_reg_nr,
+		   struct brw_reg src0,
+		   GLuint msg_control,
+		   GLuint binding_table_index,
+		   GLuint msg_length,
+		   GLuint response_length,
+		   bool eot,
+		   bool header_present);
+
+void brw_SAMPLE(struct brw_compile *p,
+		struct brw_reg dest,
+		GLuint msg_reg_nr,
+		struct brw_reg src0,
+		GLuint binding_table_index,
+		GLuint sampler,
+		GLuint writemask,
+		GLuint msg_type,
+		GLuint response_length,
+		GLuint msg_length,
+		GLuint header_present,
+		GLuint simd_mode,
+		GLuint return_format);
+
+void brw_math( struct brw_compile *p,
+	       struct brw_reg dest,
+	       GLuint function,
+	       GLuint msg_reg_nr,
+	       struct brw_reg src,
+	       GLuint data_type,
+	       GLuint precision );
+
+void brw_math2(struct brw_compile *p,
+	       struct brw_reg dest,
+	       GLuint function,
+	       struct brw_reg src0,
+	       struct brw_reg src1);
+
+void brw_oword_block_read(struct brw_compile *p,
+			  struct brw_reg dest,
+			  struct brw_reg mrf,
+			  uint32_t offset,
+			  uint32_t bind_table_index);
+
+void brw_oword_block_read_scratch(struct brw_compile *p,
+				  struct brw_reg dest,
+				  struct brw_reg mrf,
+				  int num_regs,
+				  GLuint offset);
+
+void brw_oword_block_write_scratch(struct brw_compile *p,
+				   struct brw_reg mrf,
+				   int num_regs,
+				   GLuint offset);
+
+void brw_shader_time_add(struct brw_compile *p,
+                         int mrf,
+                         uint32_t surf_index);
+
+/* If/else/endif.  Works by manipulating the execution flags on each
+ * channel.
+ */
+struct brw_instruction *brw_IF(struct brw_compile *p, 
+			       GLuint execute_size);
+struct brw_instruction *gen6_IF(struct brw_compile *p, uint32_t conditional,
+				struct brw_reg src0, struct brw_reg src1);
+
+void brw_ELSE(struct brw_compile *p);
+void brw_ENDIF(struct brw_compile *p);
+
+/* DO/WHILE loops:
+ */
+struct brw_instruction *brw_DO(struct brw_compile *p,
+			       GLuint execute_size);
+
+struct brw_instruction *brw_WHILE(struct brw_compile *p);
+
+struct brw_instruction *brw_BREAK(struct brw_compile *p);
+struct brw_instruction *brw_CONT(struct brw_compile *p);
+struct brw_instruction *gen6_CONT(struct brw_compile *p);
+struct brw_instruction *gen6_HALT(struct brw_compile *p);
+/* Forward jumps:
+ */
+void brw_land_fwd_jump(struct brw_compile *p, int jmp_insn_idx);
+
+
+
+void brw_NOP(struct brw_compile *p);
+
+void brw_WAIT(struct brw_compile *p);
+
+/* Special case: there is never a destination, execution size will be
+ * taken from src0:
+ */
+void brw_CMP(struct brw_compile *p,
+	     struct brw_reg dest,
+	     GLuint conditional,
+	     struct brw_reg src0,
+	     struct brw_reg src1);
+
+/*********************************************************************** 
+ * brw_eu_util.c:
+ */
+
+void brw_copy_indirect_to_indirect(struct brw_compile *p,
+				   struct brw_indirect dst_ptr,
+				   struct brw_indirect src_ptr,
+				   GLuint count);
+
+void brw_copy_from_indirect(struct brw_compile *p,
+			    struct brw_reg dst,
+			    struct brw_indirect ptr,
+			    GLuint count);
+
+void brw_copy4(struct brw_compile *p,
+	       struct brw_reg dst,
+	       struct brw_reg src,
+	       GLuint count);
+
+void brw_copy8(struct brw_compile *p,
+	       struct brw_reg dst,
+	       struct brw_reg src,
+	       GLuint count);
+
+void brw_math_invert( struct brw_compile *p, 
+		      struct brw_reg dst,
+		      struct brw_reg src);
+
+void brw_set_src1(struct brw_compile *p,
+		  struct brw_instruction *insn,
+		  struct brw_reg reg);
+
+void brw_set_uip_jip(struct brw_compile *p);
+
+uint32_t brw_swap_cmod(uint32_t cmod);
+
+/* brw_optimize.c */
+void brw_optimize(struct brw_compile *p);
+void brw_remove_duplicate_mrf_moves(struct brw_compile *p);
+void brw_remove_grf_to_mrf_moves(struct brw_compile *p);
+
+/* brw_disasm.c */
+struct opcode_desc {
+    char    *name;
+    int	    nsrc;
+    int	    ndst;
+};
+
+extern const struct opcode_desc opcode_descs[128];
+
+int brw_disasm (FILE *file, struct brw_instruction *inst, int gen);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif