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| /************************************************************************** |
| * |
| * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. |
| * All Rights Reserved. |
| * |
| * 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, 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 TUNGSTEN GRAPHICS 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. |
| * |
| **************************************************************************/ |
| |
| |
| #include "i915_reg.h" |
| #include "i915_debug.h" |
| #include "i915_debug_private.h" |
| #include "util/u_debug.h" |
| |
| |
| static void |
| PRINTF( |
| struct debug_stream *stream, |
| const char *fmt, |
| ... ) |
| { |
| va_list args; |
| |
| va_start( args, fmt ); |
| debug_vprintf( fmt, args ); |
| va_end( args ); |
| } |
| |
| |
| static const char *opcodes[0x20] = { |
| "NOP", |
| "ADD", |
| "MOV", |
| "MUL", |
| "MAD", |
| "DP2ADD", |
| "DP3", |
| "DP4", |
| "FRC", |
| "RCP", |
| "RSQ", |
| "EXP", |
| "LOG", |
| "CMP", |
| "MIN", |
| "MAX", |
| "FLR", |
| "MOD", |
| "TRC", |
| "SGE", |
| "SLT", |
| "TEXLD", |
| "TEXLDP", |
| "TEXLDB", |
| "TEXKILL", |
| "DCL", |
| "0x1a", |
| "0x1b", |
| "0x1c", |
| "0x1d", |
| "0x1e", |
| "0x1f", |
| }; |
| |
| |
| static const int args[0x20] = { |
| 0, /* 0 nop */ |
| 2, /* 1 add */ |
| 1, /* 2 mov */ |
| 2, /* 3 m ul */ |
| 3, /* 4 mad */ |
| 3, /* 5 dp2add */ |
| 2, /* 6 dp3 */ |
| 2, /* 7 dp4 */ |
| 1, /* 8 frc */ |
| 1, /* 9 rcp */ |
| 1, /* a rsq */ |
| 1, /* b exp */ |
| 1, /* c log */ |
| 3, /* d cmp */ |
| 2, /* e min */ |
| 2, /* f max */ |
| 1, /* 10 flr */ |
| 1, /* 11 mod */ |
| 1, /* 12 trc */ |
| 2, /* 13 sge */ |
| 2, /* 14 slt */ |
| 1, |
| 1, |
| 1, |
| 1, |
| 0, |
| 0, |
| 0, |
| 0, |
| 0, |
| 0, |
| 0, |
| }; |
| |
| |
| static const char *regname[0x8] = { |
| "R", |
| "T", |
| "CONST", |
| "S", |
| "OC", |
| "OD", |
| "U", |
| "UNKNOWN", |
| }; |
| |
| static void |
| print_reg_type_nr(struct debug_stream *stream, unsigned type, unsigned nr) |
| { |
| switch (type) { |
| case REG_TYPE_T: |
| switch (nr) { |
| case T_DIFFUSE: |
| PRINTF(stream, "T_DIFFUSE"); |
| return; |
| case T_SPECULAR: |
| PRINTF(stream, "T_SPECULAR"); |
| return; |
| case T_FOG_W: |
| PRINTF(stream, "T_FOG_W"); |
| return; |
| default: |
| PRINTF(stream, "T_TEX%d", nr); |
| return; |
| } |
| case REG_TYPE_OC: |
| if (nr == 0) { |
| PRINTF(stream, "oC"); |
| return; |
| } |
| break; |
| case REG_TYPE_OD: |
| if (nr == 0) { |
| PRINTF(stream, "oD"); |
| return; |
| } |
| break; |
| default: |
| break; |
| } |
| |
| PRINTF(stream, "%s[%d]", regname[type], nr); |
| } |
| |
| #define REG_SWIZZLE_MASK 0x7777 |
| #define REG_NEGATE_MASK 0x8888 |
| |
| #define REG_SWIZZLE_XYZW ((SRC_X << A2_SRC2_CHANNEL_X_SHIFT) | \ |
| (SRC_Y << A2_SRC2_CHANNEL_Y_SHIFT) | \ |
| (SRC_Z << A2_SRC2_CHANNEL_Z_SHIFT) | \ |
| (SRC_W << A2_SRC2_CHANNEL_W_SHIFT)) |
| |
| |
| static void |
| print_reg_neg_swizzle(struct debug_stream *stream, unsigned reg) |
| { |
| int i; |
| |
| if ((reg & REG_SWIZZLE_MASK) == REG_SWIZZLE_XYZW && |
| (reg & REG_NEGATE_MASK) == 0) |
| return; |
| |
| PRINTF(stream, "."); |
| |
| for (i = 3; i >= 0; i--) { |
| if (reg & (1 << ((i * 4) + 3))) |
| PRINTF(stream, "-"); |
| |
| switch ((reg >> (i * 4)) & 0x7) { |
| case 0: |
| PRINTF(stream, "x"); |
| break; |
| case 1: |
| PRINTF(stream, "y"); |
| break; |
| case 2: |
| PRINTF(stream, "z"); |
| break; |
| case 3: |
| PRINTF(stream, "w"); |
| break; |
| case 4: |
| PRINTF(stream, "0"); |
| break; |
| case 5: |
| PRINTF(stream, "1"); |
| break; |
| default: |
| PRINTF(stream, "?"); |
| break; |
| } |
| } |
| } |
| |
| |
| static void |
| print_src_reg(struct debug_stream *stream, unsigned dword) |
| { |
| unsigned nr = (dword >> A2_SRC2_NR_SHIFT) & REG_NR_MASK; |
| unsigned type = (dword >> A2_SRC2_TYPE_SHIFT) & REG_TYPE_MASK; |
| print_reg_type_nr(stream, type, nr); |
| print_reg_neg_swizzle(stream, dword); |
| } |
| |
| |
| static void |
| print_dest_reg(struct debug_stream *stream, unsigned dword) |
| { |
| unsigned nr = (dword >> A0_DEST_NR_SHIFT) & REG_NR_MASK; |
| unsigned type = (dword >> A0_DEST_TYPE_SHIFT) & REG_TYPE_MASK; |
| print_reg_type_nr(stream, type, nr); |
| if ((dword & A0_DEST_CHANNEL_ALL) == A0_DEST_CHANNEL_ALL) |
| return; |
| PRINTF(stream, "."); |
| if (dword & A0_DEST_CHANNEL_X) |
| PRINTF(stream, "x"); |
| if (dword & A0_DEST_CHANNEL_Y) |
| PRINTF(stream, "y"); |
| if (dword & A0_DEST_CHANNEL_Z) |
| PRINTF(stream, "z"); |
| if (dword & A0_DEST_CHANNEL_W) |
| PRINTF(stream, "w"); |
| } |
| |
| |
| #define GET_SRC0_REG(r0, r1) ((r0<<14)|(r1>>A1_SRC0_CHANNEL_W_SHIFT)) |
| #define GET_SRC1_REG(r0, r1) ((r0<<8)|(r1>>A2_SRC1_CHANNEL_W_SHIFT)) |
| #define GET_SRC2_REG(r) (r) |
| |
| |
| static void |
| print_arith_op(struct debug_stream *stream, |
| unsigned opcode, const unsigned * program) |
| { |
| if (opcode != A0_NOP) { |
| print_dest_reg(stream, program[0]); |
| if (program[0] & A0_DEST_SATURATE) |
| PRINTF(stream, " = SATURATE "); |
| else |
| PRINTF(stream, " = "); |
| } |
| |
| PRINTF(stream, "%s ", opcodes[opcode]); |
| |
| print_src_reg(stream, GET_SRC0_REG(program[0], program[1])); |
| if (args[opcode] == 1) { |
| PRINTF(stream, "\n"); |
| return; |
| } |
| |
| PRINTF(stream, ", "); |
| print_src_reg(stream, GET_SRC1_REG(program[1], program[2])); |
| if (args[opcode] == 2) { |
| PRINTF(stream, "\n"); |
| return; |
| } |
| |
| PRINTF(stream, ", "); |
| print_src_reg(stream, GET_SRC2_REG(program[2])); |
| PRINTF(stream, "\n"); |
| return; |
| } |
| |
| |
| static void |
| print_tex_op(struct debug_stream *stream, |
| unsigned opcode, const unsigned * program) |
| { |
| print_dest_reg(stream, program[0] | A0_DEST_CHANNEL_ALL); |
| PRINTF(stream, " = "); |
| |
| PRINTF(stream, "%s ", opcodes[opcode]); |
| |
| PRINTF(stream, "S[%d],", program[0] & T0_SAMPLER_NR_MASK); |
| |
| print_reg_type_nr(stream, |
| (program[1] >> T1_ADDRESS_REG_TYPE_SHIFT) & |
| REG_TYPE_MASK, |
| (program[1] >> T1_ADDRESS_REG_NR_SHIFT) & REG_NR_MASK); |
| PRINTF(stream, "\n"); |
| } |
| |
| static void |
| print_texkil_op(struct debug_stream *stream, |
| unsigned opcode, const unsigned * program) |
| { |
| PRINTF(stream, "TEXKIL "); |
| |
| print_reg_type_nr(stream, |
| (program[1] >> T1_ADDRESS_REG_TYPE_SHIFT) & |
| REG_TYPE_MASK, |
| (program[1] >> T1_ADDRESS_REG_NR_SHIFT) & REG_NR_MASK); |
| PRINTF(stream, "\n"); |
| } |
| |
| static void |
| print_dcl_op(struct debug_stream *stream, |
| unsigned opcode, const unsigned * program) |
| { |
| PRINTF(stream, "%s ", opcodes[opcode]); |
| print_dest_reg(stream, |
| program[0] | A0_DEST_CHANNEL_ALL); |
| PRINTF(stream, "\n"); |
| } |
| |
| |
| void |
| i915_disassemble_program(struct debug_stream *stream, |
| const unsigned * program, unsigned sz) |
| { |
| unsigned i; |
| |
| PRINTF(stream, "\t\tBEGIN\n"); |
| |
| assert((program[0] & 0x1ff) + 2 == sz); |
| |
| program++; |
| for (i = 1; i < sz; i += 3, program += 3) { |
| unsigned opcode = program[0] & (0x1f << 24); |
| |
| PRINTF(stream, "\t\t"); |
| |
| if ((int) opcode >= A0_NOP && opcode <= A0_SLT) |
| print_arith_op(stream, opcode >> 24, program); |
| else if (opcode >= T0_TEXLD && opcode < T0_TEXKILL) |
| print_tex_op(stream, opcode >> 24, program); |
| else if (opcode == T0_TEXKILL) |
| print_texkil_op(stream, opcode >> 24, program); |
| else if (opcode == D0_DCL) |
| print_dcl_op(stream, opcode >> 24, program); |
| else |
| PRINTF(stream, "Unknown opcode 0x%x\n", opcode); |
| } |
| |
| PRINTF(stream, "\t\tEND\n\n"); |
| } |
| |
| |