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-rw-r--r--src/panfrost/bifrost/disassemble.c2229
1 files changed, 1147 insertions, 1082 deletions
diff --git a/src/panfrost/bifrost/disassemble.c b/src/panfrost/bifrost/disassemble.c
index 02a60448bd8..c7e131d5d5b 100644
--- a/src/panfrost/bifrost/disassemble.c
+++ b/src/panfrost/bifrost/disassemble.c
@@ -81,7 +81,7 @@ enum bifrost_reg_write_unit {
};
// this represents the decoded version of the ctrl register field.
-struct bifrost_reg_ctrl{
+struct bifrost_reg_ctrl {
bool read_reg0;
bool read_reg1;
bool read_reg3;
@@ -192,7 +192,8 @@ void dump_instr(const struct bifrost_alu_inst *instr, struct bifrost_regs next_r
unsigned data_reg, unsigned offset, bool verbose);
bool dump_clause(uint32_t *words, unsigned *size, unsigned offset, bool verbose);
-void dump_header(struct bifrost_header header, bool verbose) {
+void dump_header(struct bifrost_header header, bool verbose)
+{
if (header.clause_type != 0) {
printf("id(%du) ", header.scoreboard_index);
}
@@ -249,7 +250,7 @@ void dump_header(struct bifrost_header header, bool verbose) {
if (verbose) {
printf("# clause type %d, next clause type %d\n",
- header.clause_type, header.next_clause_type);
+ header.clause_type, header.next_clause_type);
}
}
@@ -266,49 +267,49 @@ static struct bifrost_reg_ctrl DecodeRegCtrl(struct bifrost_regs regs)
decoded.read_reg0 = decoded.read_reg1 = true;
}
switch (ctrl) {
- case 1:
- decoded.fma_write_unit = REG_WRITE_TWO;
- break;
- case 2:
- case 3:
- decoded.fma_write_unit = REG_WRITE_TWO;
- decoded.read_reg3 = true;
- break;
- case 4:
- decoded.read_reg3 = true;
- break;
- case 5:
- decoded.add_write_unit = REG_WRITE_TWO;
- break;
- case 6:
- decoded.add_write_unit = REG_WRITE_TWO;
- decoded.read_reg3 = true;
- break;
- case 8:
- decoded.clause_start = true;
- break;
- case 9:
- decoded.fma_write_unit = REG_WRITE_TWO;
- decoded.clause_start = true;
- break;
- case 11:
- break;
- case 12:
- decoded.read_reg3 = true;
- decoded.clause_start = true;
- break;
- case 13:
- decoded.add_write_unit = REG_WRITE_TWO;
- decoded.clause_start = true;
- break;
-
- case 7:
- case 15:
- decoded.fma_write_unit = REG_WRITE_THREE;
- decoded.add_write_unit = REG_WRITE_TWO;
- break;
- default:
- printf("# unknown reg ctrl %d\n", ctrl);
+ case 1:
+ decoded.fma_write_unit = REG_WRITE_TWO;
+ break;
+ case 2:
+ case 3:
+ decoded.fma_write_unit = REG_WRITE_TWO;
+ decoded.read_reg3 = true;
+ break;
+ case 4:
+ decoded.read_reg3 = true;
+ break;
+ case 5:
+ decoded.add_write_unit = REG_WRITE_TWO;
+ break;
+ case 6:
+ decoded.add_write_unit = REG_WRITE_TWO;
+ decoded.read_reg3 = true;
+ break;
+ case 8:
+ decoded.clause_start = true;
+ break;
+ case 9:
+ decoded.fma_write_unit = REG_WRITE_TWO;
+ decoded.clause_start = true;
+ break;
+ case 11:
+ break;
+ case 12:
+ decoded.read_reg3 = true;
+ decoded.clause_start = true;
+ break;
+ case 13:
+ decoded.add_write_unit = REG_WRITE_TWO;
+ decoded.clause_start = true;
+ break;
+
+ case 7:
+ case 15:
+ decoded.fma_write_unit = REG_WRITE_THREE;
+ decoded.add_write_unit = REG_WRITE_TWO;
+ break;
+ default:
+ printf("# unknown reg ctrl %d\n", ctrl);
}
return decoded;
@@ -319,13 +320,13 @@ static struct bifrost_reg_ctrl DecodeRegCtrl(struct bifrost_regs regs)
static unsigned GetRegToWrite(enum bifrost_reg_write_unit unit, struct bifrost_regs regs)
{
switch (unit) {
- case REG_WRITE_TWO:
- return regs.reg2;
- case REG_WRITE_THREE:
- return regs.reg3;
- default: /* REG_WRITE_NONE */
- assert(0);
- return 0;
+ case REG_WRITE_TWO:
+ return regs.reg2;
+ case REG_WRITE_THREE:
+ return regs.reg3;
+ default: /* REG_WRITE_NONE */
+ assert(0);
+ return 0;
}
}
@@ -373,13 +374,27 @@ static uint64_t get_const(uint64_t *consts, struct bifrost_regs srcs)
unsigned low_bits = srcs.uniform_const & 0xf;
uint64_t imm;
switch (srcs.uniform_const >> 4) {
- case 4: imm = consts[0]; break;
- case 5: imm = consts[1]; break;
- case 6: imm = consts[2]; break;
- case 7: imm = consts[3]; break;
- case 2: imm = consts[4]; break;
- case 3: imm = consts[5]; break;
- default: assert(0); break;
+ case 4:
+ imm = consts[0];
+ break;
+ case 5:
+ imm = consts[1];
+ break;
+ case 6:
+ imm = consts[2];
+ break;
+ case 7:
+ imm = consts[3];
+ break;
+ case 2:
+ imm = consts[4];
+ break;
+ case 3:
+ imm = consts[5];
+ break;
+ default:
+ assert(0);
+ break;
}
return imm | low_bits;
}
@@ -397,22 +412,28 @@ static void dump_uniform_const_src(struct bifrost_regs srcs, uint64_t *consts, b
dump_const_imm(imm);
} else {
switch (srcs.uniform_const) {
- case 0: printf("0"); break;
- case 5: printf("atest-data"); break;
- case 6: printf("sample-ptr"); break;
- case 8:
- case 9:
- case 10:
- case 11:
- case 12:
- case 13:
- case 14:
- case 15:
- printf("blend-descriptor%u", (unsigned) srcs.uniform_const - 8);
- break;
- default:
- printf("unkConst%u", (unsigned) srcs.uniform_const);
- break;
+ case 0:
+ printf("0");
+ break;
+ case 5:
+ printf("atest-data");
+ break;
+ case 6:
+ printf("sample-ptr");
+ break;
+ case 8:
+ case 9:
+ case 10:
+ case 11:
+ case 12:
+ case 13:
+ case 14:
+ case 15:
+ printf("blend-descriptor%u", (unsigned) srcs.uniform_const - 8);
+ break;
+ default:
+ printf("unkConst%u", (unsigned) srcs.uniform_const);
+ break;
}
if (high32)
@@ -425,94 +446,113 @@ static void dump_uniform_const_src(struct bifrost_regs srcs, uint64_t *consts, b
static void dump_src(unsigned src, struct bifrost_regs srcs, uint64_t *consts, bool isFMA)
{
switch (src) {
- case 0: printf("R%d", get_reg0(srcs)); break;
- case 1: printf("R%d", get_reg1(srcs)); break;
- case 2: printf("R%d", srcs.reg3); break;
- case 3:
- if (isFMA)
- printf("0");
- else
- printf("T"); // i.e. the output of FMA this cycle
- break;
- case 4:
- dump_uniform_const_src(srcs, consts, false);
- break;
- case 5:
- dump_uniform_const_src(srcs, consts, true);
- break;
- case 6: printf("T0"); break;
- case 7: printf("T1"); break;
+ case 0:
+ printf("R%d", get_reg0(srcs));
+ break;
+ case 1:
+ printf("R%d", get_reg1(srcs));
+ break;
+ case 2:
+ printf("R%d", srcs.reg3);
+ break;
+ case 3:
+ if (isFMA)
+ printf("0");
+ else
+ printf("T"); // i.e. the output of FMA this cycle
+ break;
+ case 4:
+ dump_uniform_const_src(srcs, consts, false);
+ break;
+ case 5:
+ dump_uniform_const_src(srcs, consts, true);
+ break;
+ case 6:
+ printf("T0");
+ break;
+ case 7:
+ printf("T1");
+ break;
}
}
static void dump_output_mod(unsigned mod)
{
switch (mod) {
- case 0:
- break;
- case 1:
- printf(".clamp_0_inf"); break; // max(out, 0)
- case 2:
- printf(".clamp_m1_1"); break; // clamp(out, -1, 1)
- case 3:
- printf(".clamp_0_1"); break; // clamp(out, 0, 1)
- default:
- break;
+ case 0:
+ break;
+ case 1:
+ printf(".clamp_0_inf");
+ break; // max(out, 0)
+ case 2:
+ printf(".clamp_m1_1");
+ break; // clamp(out, -1, 1)
+ case 3:
+ printf(".clamp_0_1");
+ break; // clamp(out, 0, 1)
+ default:
+ break;
}
}
static void dump_minmax_mode(unsigned mod)
{
switch (mod) {
- case 0:
- /* Same as fmax() and fmin() -- return the other number if any
- * number is NaN. Also always return +0 if one argument is +0 and
- * the other is -0.
- */
- break;
- case 1:
- /* Instead of never returning a NaN, always return one. The
- * "greater"/"lesser" NaN is always returned, first by checking the
- * sign and then the mantissa bits.
- */
- printf(".nan_wins"); break;
- case 2:
- /* For max, implement src0 > src1 ? src0 : src1
- * For min, implement src0 < src1 ? src0 : src1
- *
- * This includes handling NaN's and signedness of 0 differently
- * from above, since +0 and -0 compare equal and comparisons always
- * return false for NaN's. As a result, this mode is *not*
- * commutative.
- */
- printf(".src1_wins"); break;
- case 3:
- /* For max, implement src0 < src1 ? src1 : src0
- * For min, implement src0 > src1 ? src1 : src0
- */
- printf(".src0_wins"); break;
- default:
- break;
+ case 0:
+ /* Same as fmax() and fmin() -- return the other number if any
+ * number is NaN. Also always return +0 if one argument is +0 and
+ * the other is -0.
+ */
+ break;
+ case 1:
+ /* Instead of never returning a NaN, always return one. The
+ * "greater"/"lesser" NaN is always returned, first by checking the
+ * sign and then the mantissa bits.
+ */
+ printf(".nan_wins");
+ break;
+ case 2:
+ /* For max, implement src0 > src1 ? src0 : src1
+ * For min, implement src0 < src1 ? src0 : src1
+ *
+ * This includes handling NaN's and signedness of 0 differently
+ * from above, since +0 and -0 compare equal and comparisons always
+ * return false for NaN's. As a result, this mode is *not*
+ * commutative.
+ */
+ printf(".src1_wins");
+ break;
+ case 3:
+ /* For max, implement src0 < src1 ? src1 : src0
+ * For min, implement src0 > src1 ? src1 : src0
+ */
+ printf(".src0_wins");
+ break;
+ default:
+ break;
}
}
static void dump_round_mode(unsigned mod)
{
switch (mod) {
- case 0:
- /* roundTiesToEven, the IEEE default. */
- break;
- case 1:
- /* roundTowardPositive in the IEEE spec. */
- printf(".round_pos"); break;
- case 2:
- /* roundTowardNegative in the IEEE spec. */
- printf(".round_neg"); break;
- case 3:
- /* roundTowardZero in the IEEE spec. */
- printf(".round_zero"); break;
- default:
- break;
+ case 0:
+ /* roundTiesToEven, the IEEE default. */
+ break;
+ case 1:
+ /* roundTowardPositive in the IEEE spec. */
+ printf(".round_pos");
+ break;
+ case 2:
+ /* roundTowardNegative in the IEEE spec. */
+ printf(".round_neg");
+ break;
+ case 3:
+ /* roundTowardZero in the IEEE spec. */
+ printf(".round_zero");
+ break;
+ default:
+ break;
}
}
@@ -753,39 +793,39 @@ static struct fma_op_info find_fma_op_info(unsigned op)
for (unsigned i = 0; i < ARRAY_SIZE(FMAOpInfos); i++) {
unsigned opCmp = ~0;
switch (FMAOpInfos[i].src_type) {
- case FMA_ONE_SRC:
- opCmp = op;
- break;
- case FMA_TWO_SRC:
- opCmp = op & ~0x7;
- break;
- case FMA_FCMP:
- case FMA_FCMP16:
- opCmp = op & ~0x1fff;
- break;
- case FMA_THREE_SRC:
- case FMA_SHIFT_ADD64:
- opCmp = op & ~0x3f;
- break;
- case FMA_FADD:
- case FMA_FMINMAX:
- case FMA_FADD16:
- case FMA_FMINMAX16:
- opCmp = op & ~0x3fff;
- break;
- case FMA_FMA:
- case FMA_FMA16:
- opCmp = op & ~0x3ffff;
- break;
- case FMA_FOUR_SRC:
- opCmp = op & ~0x1ff;
- break;
- case FMA_FMA_MSCALE:
- opCmp = op & ~0x7fff;
- break;
- default:
- opCmp = ~0;
- break;
+ case FMA_ONE_SRC:
+ opCmp = op;
+ break;
+ case FMA_TWO_SRC:
+ opCmp = op & ~0x7;
+ break;
+ case FMA_FCMP:
+ case FMA_FCMP16:
+ opCmp = op & ~0x1fff;
+ break;
+ case FMA_THREE_SRC:
+ case FMA_SHIFT_ADD64:
+ opCmp = op & ~0x3f;
+ break;
+ case FMA_FADD:
+ case FMA_FMINMAX:
+ case FMA_FADD16:
+ case FMA_FMINMAX16:
+ opCmp = op & ~0x3fff;
+ break;
+ case FMA_FMA:
+ case FMA_FMA16:
+ opCmp = op & ~0x3ffff;
+ break;
+ case FMA_FOUR_SRC:
+ opCmp = op & ~0x1ff;
+ break;
+ case FMA_FMA_MSCALE:
+ opCmp = op & ~0x7fff;
+ break;
+ default:
+ opCmp = ~0;
+ break;
}
if (FMAOpInfos[i].op == opCmp)
return FMAOpInfos[i];
@@ -801,27 +841,27 @@ static struct fma_op_info find_fma_op_info(unsigned op)
static void dump_fcmp(unsigned op)
{
switch (op) {
- case 0:
- printf(".OEQ");
- break;
- case 1:
- printf(".OGT");
- break;
- case 2:
- printf(".OGE");
- break;
- case 3:
- printf(".UNE");
- break;
- case 4:
- printf(".OLT");
- break;
- case 5:
- printf(".OLE");
- break;
- default:
- printf(".unk%d", op);
- break;
+ case 0:
+ printf(".OEQ");
+ break;
+ case 1:
+ printf(".OGT");
+ break;
+ case 2:
+ printf(".OGE");
+ break;
+ case 3:
+ printf(".UNE");
+ break;
+ case 4:
+ printf(".OLT");
+ break;
+ case 5:
+ printf(".OLE");
+ break;
+ default:
+ printf(".unk%d", op);
+ break;
}
}
@@ -835,44 +875,44 @@ static void dump_16swizzle(unsigned swiz)
static void dump_fma_expand_src0(unsigned ctrl)
{
switch (ctrl) {
- case 3:
- case 4:
- case 6:
- printf(".x");
- break;
- case 5:
- case 7:
- printf(".y");
- break;
- case 0:
- case 1:
- case 2:
- break;
- default:
- printf(".unk");
- break;
+ case 3:
+ case 4:
+ case 6:
+ printf(".x");
+ break;
+ case 5:
+ case 7:
+ printf(".y");
+ break;
+ case 0:
+ case 1:
+ case 2:
+ break;
+ default:
+ printf(".unk");
+ break;
}
}
static void dump_fma_expand_src1(unsigned ctrl)
{
switch (ctrl) {
- case 1:
- case 3:
- printf(".x");
- break;
- case 2:
- case 4:
- case 5:
- printf(".y");
- break;
- case 0:
- case 6:
- case 7:
- break;
- default:
- printf(".unk");
- break;
+ case 1:
+ case 3:
+ printf(".x");
+ break;
+ case 2:
+ case 4:
+ case 5:
+ printf(".y");
+ break;
+ case 0:
+ case 6:
+ case 7:
+ break;
+ default:
+ printf(".unk");
+ break;
}
}
@@ -887,25 +927,25 @@ static void dump_fma(uint64_t word, struct bifrost_regs regs, struct bifrost_reg
printf("%s", info.name);
if (info.src_type == FMA_FADD ||
- info.src_type == FMA_FMINMAX ||
- info.src_type == FMA_FMA ||
- info.src_type == FMA_FADD16 ||
- info.src_type == FMA_FMINMAX16 ||
- info.src_type == FMA_FMA16) {
+ info.src_type == FMA_FMINMAX ||
+ info.src_type == FMA_FMA ||
+ info.src_type == FMA_FADD16 ||
+ info.src_type == FMA_FMINMAX16 ||
+ info.src_type == FMA_FMA16) {
dump_output_mod(bits(FMA.op, 12, 14));
switch (info.src_type) {
- case FMA_FADD:
- case FMA_FMA:
- case FMA_FADD16:
- case FMA_FMA16:
- dump_round_mode(bits(FMA.op, 10, 12));
- break;
- case FMA_FMINMAX:
- case FMA_FMINMAX16:
- dump_minmax_mode(bits(FMA.op, 10, 12));
- break;
- default:
- assert(0);
+ case FMA_FADD:
+ case FMA_FMA:
+ case FMA_FADD16:
+ case FMA_FMA16:
+ dump_round_mode(bits(FMA.op, 10, 12));
+ break;
+ case FMA_FMINMAX:
+ case FMA_FMINMAX16:
+ dump_minmax_mode(bits(FMA.op, 10, 12));
+ break;
+ default:
+ assert(0);
}
} else if (info.src_type == FMA_FCMP || info.src_type == FMA_FCMP16) {
dump_fcmp(bits(FMA.op, 10, 13));
@@ -916,25 +956,25 @@ static void dump_fma(uint64_t word, struct bifrost_regs regs, struct bifrost_reg
} else if (info.src_type == FMA_FMA_MSCALE) {
if (FMA.op & (1 << 11)) {
switch ((FMA.op >> 9) & 0x3) {
- case 0:
- /* This mode seems to do a few things:
- * - Makes 0 * infinity (and incidentally 0 * nan) return 0,
- * since generating a nan would poison the result of
- * 1/infinity and 1/0.
- * - Fiddles with which nan is returned in nan * nan,
- * presumably to make sure that the same exact nan is
- * returned for 1/nan.
- */
- printf(".rcp_mode");
- break;
- case 3:
- /* Similar to the above, but src0 always wins when multiplying
- * 0 by infinity.
- */
- printf(".sqrt_mode");
- break;
- default:
- printf(".unk%d_mode", (int) (FMA.op >> 9) & 0x3);
+ case 0:
+ /* This mode seems to do a few things:
+ * - Makes 0 * infinity (and incidentally 0 * nan) return 0,
+ * since generating a nan would poison the result of
+ * 1/infinity and 1/0.
+ * - Fiddles with which nan is returned in nan * nan,
+ * presumably to make sure that the same exact nan is
+ * returned for 1/nan.
+ */
+ printf(".rcp_mode");
+ break;
+ case 3:
+ /* Similar to the above, but src0 always wins when multiplying
+ * 0 by infinity.
+ */
+ printf(".sqrt_mode");
+ break;
+ default:
+ printf(".unk%d_mode", (int) (FMA.op >> 9) & 0x3);
}
} else {
dump_output_mod(bits(FMA.op, 9, 11));
@@ -951,162 +991,162 @@ static void dump_fma(uint64_t word, struct bifrost_regs regs, struct bifrost_reg
}
switch (info.src_type) {
- case FMA_ONE_SRC:
- dump_src(FMA.src0, regs, consts, true);
- break;
- case FMA_TWO_SRC:
- dump_src(FMA.src0, regs, consts, true);
- printf(", ");
- dump_src(FMA.op & 0x7, regs, consts, true);
- break;
- case FMA_FADD:
- case FMA_FMINMAX:
- if (FMA.op & 0x10)
- printf("-");
- if (FMA.op & 0x200)
- printf("abs(");
- dump_src(FMA.src0, regs, consts, true);
- dump_fma_expand_src0((FMA.op >> 6) & 0x7);
- if (FMA.op & 0x200)
- printf(")");
- printf(", ");
- if (FMA.op & 0x20)
- printf("-");
- if (FMA.op & 0x8)
- printf("abs(");
- dump_src(FMA.op & 0x7, regs, consts, true);
- dump_fma_expand_src1((FMA.op >> 6) & 0x7);
- if (FMA.op & 0x8)
- printf(")");
- break;
- case FMA_FADD16:
- case FMA_FMINMAX16: {
- bool abs1 = FMA.op & 0x8;
- bool abs2 = (FMA.op & 0x7) < FMA.src0;
- if (FMA.op & 0x10)
- printf("-");
- if (abs1 || abs2)
- printf("abs(");
- dump_src(FMA.src0, regs, consts, true);
- dump_16swizzle((FMA.op >> 6) & 0x3);
- if (abs1 || abs2)
- printf(")");
- printf(", ");
- if (FMA.op & 0x20)
- printf("-");
- if (abs1 && abs2)
- printf("abs(");
- dump_src(FMA.op & 0x7, regs, consts, true);
- dump_16swizzle((FMA.op >> 8) & 0x3);
- if (abs1 && abs2)
- printf(")");
- break;
- }
- case FMA_FCMP:
- if (FMA.op & 0x200)
- printf("abs(");
- dump_src(FMA.src0, regs, consts, true);
- dump_fma_expand_src0((FMA.op >> 6) & 0x7);
- if (FMA.op & 0x200)
- printf(")");
- printf(", ");
- if (FMA.op & 0x20)
- printf("-");
- if (FMA.op & 0x8)
- printf("abs(");
- dump_src(FMA.op & 0x7, regs, consts, true);
- dump_fma_expand_src1((FMA.op >> 6) & 0x7);
- if (FMA.op & 0x8)
- printf(")");
- break;
- case FMA_FCMP16:
- dump_src(FMA.src0, regs, consts, true);
- // Note: this is kinda a guess, I haven't seen the blob set this to
- // anything other than the identity, but it matches FMA_TWO_SRCFmod16
- dump_16swizzle((FMA.op >> 6) & 0x3);
- printf(", ");
- dump_src(FMA.op & 0x7, regs, consts, true);
- dump_16swizzle((FMA.op >> 8) & 0x3);
- break;
- case FMA_SHIFT_ADD64:
- dump_src(FMA.src0, regs, consts, true);
- printf(", ");
- dump_src(FMA.op & 0x7, regs, consts, true);
- printf(", ");
- printf("shift:%u", (FMA.op >> 3) & 0x7);
- break;
- case FMA_THREE_SRC:
- dump_src(FMA.src0, regs, consts, true);
- printf(", ");
- dump_src(FMA.op & 0x7, regs, consts, true);
- printf(", ");
- dump_src((FMA.op >> 3) & 0x7, regs, consts, true);
- break;
- case FMA_FMA:
- if (FMA.op & (1 << 14))
- printf("-");
- if (FMA.op & (1 << 9))
- printf("abs(");
- dump_src(FMA.src0, regs, consts, true);
- dump_fma_expand_src0((FMA.op >> 6) & 0x7);
- if (FMA.op & (1 << 9))
- printf(")");
- printf(", ");
- if (FMA.op & (1 << 16))
- printf("abs(");
- dump_src(FMA.op & 0x7, regs, consts, true);
- dump_fma_expand_src1((FMA.op >> 6) & 0x7);
- if (FMA.op & (1 << 16))
- printf(")");
- printf(", ");
- if (FMA.op & (1 << 15))
- printf("-");
- if (FMA.op & (1 << 17))
- printf("abs(");
- dump_src((FMA.op >> 3) & 0x7, regs, consts, true);
- if (FMA.op & (1 << 17))
- printf(")");
- break;
- case FMA_FMA16:
- if (FMA.op & (1 << 14))
- printf("-");
- dump_src(FMA.src0, regs, consts, true);
- dump_16swizzle((FMA.op >> 6) & 0x3);
- printf(", ");
- dump_src(FMA.op & 0x7, regs, consts, true);
- dump_16swizzle((FMA.op >> 8) & 0x3);
- printf(", ");
- if (FMA.op & (1 << 15))
- printf("-");
- dump_src((FMA.op >> 3) & 0x7, regs, consts, true);
- dump_16swizzle((FMA.op >> 16) & 0x3);
- break;
- case FMA_FOUR_SRC:
- dump_src(FMA.src0, regs, consts, true);
- printf(", ");
- dump_src(FMA.op & 0x7, regs, consts, true);
- printf(", ");
- dump_src((FMA.op >> 3) & 0x7, regs, consts, true);
- printf(", ");
- dump_src((FMA.op >> 6) & 0x7, regs, consts, true);
- break;
- case FMA_FMA_MSCALE:
- if (FMA.op & (1 << 12))
- printf("abs(");
- dump_src(FMA.src0, regs, consts, true);
- if (FMA.op & (1 << 12))
- printf(")");
- printf(", ");
- if (FMA.op & (1 << 13))
- printf("-");
- dump_src(FMA.op & 0x7, regs, consts, true);
- printf(", ");
- if (FMA.op & (1 << 14))
- printf("-");
- dump_src((FMA.op >> 3) & 0x7, regs, consts, true);
- printf(", ");
- dump_src((FMA.op >> 6) & 0x7, regs, consts, true);
- break;
+ case FMA_ONE_SRC:
+ dump_src(FMA.src0, regs, consts, true);
+ break;
+ case FMA_TWO_SRC:
+ dump_src(FMA.src0, regs, consts, true);
+ printf(", ");
+ dump_src(FMA.op & 0x7, regs, consts, true);
+ break;
+ case FMA_FADD:
+ case FMA_FMINMAX:
+ if (FMA.op & 0x10)
+ printf("-");
+ if (FMA.op & 0x200)
+ printf("abs(");
+ dump_src(FMA.src0, regs, consts, true);
+ dump_fma_expand_src0((FMA.op >> 6) & 0x7);
+ if (FMA.op & 0x200)
+ printf(")");
+ printf(", ");
+ if (FMA.op & 0x20)
+ printf("-");
+ if (FMA.op & 0x8)
+ printf("abs(");
+ dump_src(FMA.op & 0x7, regs, consts, true);
+ dump_fma_expand_src1((FMA.op >> 6) & 0x7);
+ if (FMA.op & 0x8)
+ printf(")");
+ break;
+ case FMA_FADD16:
+ case FMA_FMINMAX16: {
+ bool abs1 = FMA.op & 0x8;
+ bool abs2 = (FMA.op & 0x7) < FMA.src0;
+ if (FMA.op & 0x10)
+ printf("-");
+ if (abs1 || abs2)
+ printf("abs(");
+ dump_src(FMA.src0, regs, consts, true);
+ dump_16swizzle((FMA.op >> 6) & 0x3);
+ if (abs1 || abs2)
+ printf(")");
+ printf(", ");
+ if (FMA.op & 0x20)
+ printf("-");
+ if (abs1 && abs2)
+ printf("abs(");
+ dump_src(FMA.op & 0x7, regs, consts, true);
+ dump_16swizzle((FMA.op >> 8) & 0x3);
+ if (abs1 && abs2)
+ printf(")");
+ break;
+ }
+ case FMA_FCMP:
+ if (FMA.op & 0x200)
+ printf("abs(");
+ dump_src(FMA.src0, regs, consts, true);
+ dump_fma_expand_src0((FMA.op >> 6) & 0x7);
+ if (FMA.op & 0x200)
+ printf(")");
+ printf(", ");
+ if (FMA.op & 0x20)
+ printf("-");
+ if (FMA.op & 0x8)
+ printf("abs(");
+ dump_src(FMA.op & 0x7, regs, consts, true);
+ dump_fma_expand_src1((FMA.op >> 6) & 0x7);
+ if (FMA.op & 0x8)
+ printf(")");
+ break;
+ case FMA_FCMP16:
+ dump_src(FMA.src0, regs, consts, true);
+ // Note: this is kinda a guess, I haven't seen the blob set this to
+ // anything other than the identity, but it matches FMA_TWO_SRCFmod16
+ dump_16swizzle((FMA.op >> 6) & 0x3);
+ printf(", ");
+ dump_src(FMA.op & 0x7, regs, consts, true);
+ dump_16swizzle((FMA.op >> 8) & 0x3);
+ break;
+ case FMA_SHIFT_ADD64:
+ dump_src(FMA.src0, regs, consts, true);
+ printf(", ");
+ dump_src(FMA.op & 0x7, regs, consts, true);
+ printf(", ");
+ printf("shift:%u", (FMA.op >> 3) & 0x7);
+ break;
+ case FMA_THREE_SRC:
+ dump_src(FMA.src0, regs, consts, true);
+ printf(", ");
+ dump_src(FMA.op & 0x7, regs, consts, true);
+ printf(", ");
+ dump_src((FMA.op >> 3) & 0x7, regs, consts, true);
+ break;
+ case FMA_FMA:
+ if (FMA.op & (1 << 14))
+ printf("-");
+ if (FMA.op & (1 << 9))
+ printf("abs(");
+ dump_src(FMA.src0, regs, consts, true);
+ dump_fma_expand_src0((FMA.op >> 6) & 0x7);
+ if (FMA.op & (1 << 9))
+ printf(")");
+ printf(", ");
+ if (FMA.op & (1 << 16))
+ printf("abs(");
+ dump_src(FMA.op & 0x7, regs, consts, true);
+ dump_fma_expand_src1((FMA.op >> 6) & 0x7);
+ if (FMA.op & (1 << 16))
+ printf(")");
+ printf(", ");
+ if (FMA.op & (1 << 15))
+ printf("-");
+ if (FMA.op & (1 << 17))
+ printf("abs(");
+ dump_src((FMA.op >> 3) & 0x7, regs, consts, true);
+ if (FMA.op & (1 << 17))
+ printf(")");
+ break;
+ case FMA_FMA16:
+ if (FMA.op & (1 << 14))
+ printf("-");
+ dump_src(FMA.src0, regs, consts, true);
+ dump_16swizzle((FMA.op >> 6) & 0x3);
+ printf(", ");
+ dump_src(FMA.op & 0x7, regs, consts, true);
+ dump_16swizzle((FMA.op >> 8) & 0x3);
+ printf(", ");
+ if (FMA.op & (1 << 15))
+ printf("-");
+ dump_src((FMA.op >> 3) & 0x7, regs, consts, true);
+ dump_16swizzle((FMA.op >> 16) & 0x3);
+ break;
+ case FMA_FOUR_SRC:
+ dump_src(FMA.src0, regs, consts, true);
+ printf(", ");
+ dump_src(FMA.op & 0x7, regs, consts, true);
+ printf(", ");
+ dump_src((FMA.op >> 3) & 0x7, regs, consts, true);
+ printf(", ");
+ dump_src((FMA.op >> 6) & 0x7, regs, consts, true);
+ break;
+ case FMA_FMA_MSCALE:
+ if (FMA.op & (1 << 12))
+ printf("abs(");
+ dump_src(FMA.src0, regs, consts, true);
+ if (FMA.op & (1 << 12))
+ printf(")");
+ printf(", ");
+ if (FMA.op & (1 << 13))
+ printf("-");
+ dump_src(FMA.op & 0x7, regs, consts, true);
+ printf(", ");
+ if (FMA.op & (1 << 14))
+ printf("-");
+ dump_src((FMA.op >> 3) & 0x7, regs, consts, true);
+ printf(", ");
+ dump_src((FMA.op >> 6) & 0x7, regs, consts, true);
+ break;
}
printf("\n");
}
@@ -1332,50 +1372,50 @@ static struct add_op_info find_add_op_info(unsigned op)
for (unsigned i = 0; i < ARRAY_SIZE(add_op_infos); i++) {
unsigned opCmp = ~0;
switch (add_op_infos[i].src_type) {
- case ADD_ONE_SRC:
- case ADD_BLENDING:
- opCmp = op;
- break;
- case ADD_TWO_SRC:
- opCmp = op & ~0x7;
- break;
- case ADD_THREE_SRC:
- opCmp = op & ~0x3f;
- break;
- case ADD_TEX:
- opCmp = op & ~0xf;
- break;
- case ADD_FADD:
- case ADD_FMINMAX:
- case ADD_FADD16:
- opCmp = op & ~0x1fff;
- break;
- case ADD_FMINMAX16:
- case ADD_FADDMscale:
- opCmp = op & ~0xfff;
- break;
- case ADD_FCMP:
- case ADD_FCMP16:
- opCmp = op & ~0x7ff;
- break;
- case ADD_TEX_COMPACT:
- opCmp = op & ~0x3ff;
- break;
- case ADD_VARYING_INTERP:
- opCmp = op & ~0x7ff;
- break;
- case ADD_VARYING_ADDRESS:
- opCmp = op & ~0xff;
- break;
- case ADD_LOAD_ATTR:
- opCmp = op & ~0x7f;
- break;
- case ADD_BRANCH:
- opCmp = op & ~0xfff;
- break;
- default:
- opCmp = ~0;
- break;
+ case ADD_ONE_SRC:
+ case ADD_BLENDING:
+ opCmp = op;
+ break;
+ case ADD_TWO_SRC:
+ opCmp = op & ~0x7;
+ break;
+ case ADD_THREE_SRC:
+ opCmp = op & ~0x3f;
+ break;
+ case ADD_TEX:
+ opCmp = op & ~0xf;
+ break;
+ case ADD_FADD:
+ case ADD_FMINMAX:
+ case ADD_FADD16:
+ opCmp = op & ~0x1fff;
+ break;
+ case ADD_FMINMAX16:
+ case ADD_FADDMscale:
+ opCmp = op & ~0xfff;
+ break;
+ case ADD_FCMP:
+ case ADD_FCMP16:
+ opCmp = op & ~0x7ff;
+ break;
+ case ADD_TEX_COMPACT:
+ opCmp = op & ~0x3ff;
+ break;
+ case ADD_VARYING_INTERP:
+ opCmp = op & ~0x7ff;
+ break;
+ case ADD_VARYING_ADDRESS:
+ opCmp = op & ~0xff;
+ break;
+ case ADD_LOAD_ATTR:
+ opCmp = op & ~0x7f;
+ break;
+ case ADD_BRANCH:
+ opCmp = op & ~0xfff;
+ break;
+ default:
+ opCmp = ~0;
+ break;
}
if (add_op_infos[i].op == opCmp)
return add_op_infos[i];
@@ -1390,7 +1430,7 @@ static struct add_op_info find_add_op_info(unsigned op)
}
static void dump_add(uint64_t word, struct bifrost_regs regs, struct bifrost_regs next_regs, uint64_t *consts,
- unsigned data_reg, unsigned offset, bool verbose)
+ unsigned data_reg, unsigned offset, bool verbose)
{
if (verbose) {
printf("# ADD: %016" PRIx64 "\n", word);
@@ -1417,18 +1457,29 @@ static void dump_add(uint64_t word, struct bifrost_regs regs, struct bifrost_reg
printf(".v2f16");
} else if (info.src_type == ADD_FADDMscale) {
switch ((ADD.op >> 6) & 0x7) {
- case 0: break;
- // causes GPU hangs on G71
- case 1: printf(".invalid"); break;
- // Same as usual outmod value.
- case 2: printf(".clamp_0_1"); break;
- // If src0 is infinite or NaN, flush it to zero so that the other
- // source is passed through unmodified.
- case 3: printf(".flush_src0_inf_nan"); break;
- // Vice versa.
- case 4: printf(".flush_src1_inf_nan"); break;
- // Every other case seems to behave the same as the above?
- default: printf(".unk%d", (ADD.op >> 6) & 0x7); break;
+ case 0:
+ break;
+ // causes GPU hangs on G71
+ case 1:
+ printf(".invalid");
+ break;
+ // Same as usual outmod value.
+ case 2:
+ printf(".clamp_0_1");
+ break;
+ // If src0 is infinite or NaN, flush it to zero so that the other
+ // source is passed through unmodified.
+ case 3:
+ printf(".flush_src0_inf_nan");
+ break;
+ // Vice versa.
+ case 4:
+ printf(".flush_src1_inf_nan");
+ break;
+ // Every other case seems to behave the same as the above?
+ default:
+ printf(".unk%d", (ADD.op >> 6) & 0x7);
+ break;
}
} else if (info.src_type == ADD_VARYING_INTERP) {
if (ADD.op & 0x200)
@@ -1436,10 +1487,17 @@ static void dump_add(uint64_t word, struct bifrost_regs regs, struct bifrost_reg
if (ADD.op & 0x400)
printf(".flat");
switch ((ADD.op >> 7) & 0x3) {
- case 0: printf(".per_frag"); break;
- case 1: printf(".centroid"); break;
- case 2: break;
- case 3: printf(".explicit"); break;
+ case 0:
+ printf(".per_frag");
+ break;
+ case 1:
+ printf(".centroid");
+ break;
+ case 2:
+ break;
+ case 3:
+ printf(".explicit");
+ break;
}
printf(".v%d", ((ADD.op >> 5) & 0x3) + 1);
} else if (info.src_type == ADD_BRANCH) {
@@ -1466,79 +1524,79 @@ static void dump_add(uint64_t word, struct bifrost_regs regs, struct bifrost_reg
portSwapped = !(ADD.op & 1);
switch (cond) {
- case BR_COND_LT:
- if (portSwapped)
- printf(".LT.u");
- else
- printf(".LT.i");
- break;
- case BR_COND_LE:
- if (size == BR_SIZE_32_AND_16X || size == BR_SIZE_32_AND_16Y) {
- printf(".UNE.f");
- } else {
- if (portSwapped)
- printf(".LE.u");
- else
- printf(".LE.i");
- }
- break;
- case BR_COND_GT:
- if (portSwapped)
- printf(".GT.u");
- else
- printf(".GT.i");
- break;
- case BR_COND_GE:
- if (portSwapped)
- printf(".GE.u");
- else
- printf(".GE.i");
- break;
- case BR_COND_EQ:
- if (portSwapped)
- printf(".NE.i");
- else
- printf(".EQ.i");
- break;
- case BR_COND_OEQ:
- if (portSwapped)
- printf(".UNE.f");
- else
- printf(".OEQ.f");
- break;
- case BR_COND_OGT:
- if (portSwapped)
- printf(".OGT.unk.f");
- else
- printf(".OGT.f");
- break;
- case BR_COND_OLT:
+ case BR_COND_LT:
+ if (portSwapped)
+ printf(".LT.u");
+ else
+ printf(".LT.i");
+ break;
+ case BR_COND_LE:
+ if (size == BR_SIZE_32_AND_16X || size == BR_SIZE_32_AND_16Y) {
+ printf(".UNE.f");
+ } else {
if (portSwapped)
- printf(".OLT.unk.f");
+ printf(".LE.u");
else
- printf(".OLT.f");
- break;
+ printf(".LE.i");
+ }
+ break;
+ case BR_COND_GT:
+ if (portSwapped)
+ printf(".GT.u");
+ else
+ printf(".GT.i");
+ break;
+ case BR_COND_GE:
+ if (portSwapped)
+ printf(".GE.u");
+ else
+ printf(".GE.i");
+ break;
+ case BR_COND_EQ:
+ if (portSwapped)
+ printf(".NE.i");
+ else
+ printf(".EQ.i");
+ break;
+ case BR_COND_OEQ:
+ if (portSwapped)
+ printf(".UNE.f");
+ else
+ printf(".OEQ.f");
+ break;
+ case BR_COND_OGT:
+ if (portSwapped)
+ printf(".OGT.unk.f");
+ else
+ printf(".OGT.f");
+ break;
+ case BR_COND_OLT:
+ if (portSwapped)
+ printf(".OLT.unk.f");
+ else
+ printf(".OLT.f");
+ break;
}
switch (size) {
- case BR_SIZE_32:
- case BR_SIZE_32_AND_16X:
- case BR_SIZE_32_AND_16Y:
- printf("32");
- break;
- case BR_SIZE_16XX:
- case BR_SIZE_16YY:
- case BR_SIZE_16YX0:
- case BR_SIZE_16YX1:
- printf("16");
- break;
- case BR_SIZE_ZERO: {
- unsigned ctrl = (ADD.op >> 1) & 0x3;
- if (ctrl == 0)
- printf("32.Z");
- else
- printf("16.Z");
- break;
- }
+ case BR_SIZE_32:
+ case BR_SIZE_32_AND_16X:
+ case BR_SIZE_32_AND_16Y:
+ printf("32");
+ break;
+ case BR_SIZE_16XX:
+ case BR_SIZE_16YY:
+ case BR_SIZE_16YX0:
+ case BR_SIZE_16YX1:
+ printf("16");
+ break;
+ case BR_SIZE_ZERO: {
+ unsigned ctrl = (ADD.op >> 1) & 0x3;
+ if (ctrl == 0)
+ printf("32.Z");
+ else
+ printf("16.Z");
+ break;
+ }
}
}
}
@@ -1552,414 +1610,421 @@ static void dump_add(uint64_t word, struct bifrost_regs regs, struct bifrost_reg
}
switch (info.src_type) {
- case ADD_BLENDING:
- // Note: in this case, regs.uniform_const == location | 0x8
- // This probably means we can't load uniforms or immediates in the
- // same instruction. This re-uses the encoding that normally means
- // "disabled", where the low 4 bits are ignored. Perhaps the extra
- // 0x8 or'd in indicates this is happening.
- printf("location:%d, ", regs.uniform_const & 0x7);
- // fallthrough
- case ADD_ONE_SRC:
- dump_src(ADD.src0, regs, consts, false);
+ case ADD_BLENDING:
+ // Note: in this case, regs.uniform_const == location | 0x8
+ // This probably means we can't load uniforms or immediates in the
+ // same instruction. This re-uses the encoding that normally means
+ // "disabled", where the low 4 bits are ignored. Perhaps the extra
+ // 0x8 or'd in indicates this is happening.
+ printf("location:%d, ", regs.uniform_const & 0x7);
+ // fallthrough
+ case ADD_ONE_SRC:
+ dump_src(ADD.src0, regs, consts, false);
+ break;
+ case ADD_TEX:
+ case ADD_TEX_COMPACT: {
+ int tex_index;
+ int sampler_index;
+ bool dualTex = false;
+ if (info.src_type == ADD_TEX_COMPACT) {
+ tex_index = (ADD.op >> 3) & 0x7;
+ sampler_index = (ADD.op >> 7) & 0x7;
+ bool unknown = (ADD.op & 0x40);
+ // TODO: figure out if the unknown bit is ever 0
+ if (!unknown)
+ printf("unknown ");
+ } else {
+ uint64_t constVal = get_const(consts, regs);
+ uint32_t controlBits = (ADD.op & 0x8) ? (constVal >> 32) : constVal;
+ struct bifrost_tex_ctrl ctrl;
+ memcpy((char *) &ctrl, (char *) &controlBits, sizeof(ctrl));
+
+ // TODO: figure out what actually triggers dual-tex
+ if (ctrl.result_type == 9) {
+ struct bifrost_dual_tex_ctrl dualCtrl;
+ memcpy((char *) &dualCtrl, (char *) &controlBits, sizeof(ctrl));
+ printf("(dualtex) tex0:%d samp0:%d tex1:%d samp1:%d ",
+ dualCtrl.tex_index0, dualCtrl.sampler_index0,
+ dualCtrl.tex_index1, dualCtrl.sampler_index1);
+ if (dualCtrl.unk0 != 3)
+ printf("unk:%d ", dualCtrl.unk0);
+ dualTex = true;
+ } else {
+ if (ctrl.no_merge_index) {
+ tex_index = ctrl.tex_index;
+ sampler_index = ctrl.sampler_index;
+ } else {
+ tex_index = sampler_index = ctrl.tex_index;
+ unsigned unk = ctrl.sampler_index >> 2;
+ if (unk != 3)
+ printf("unk:%d ", unk);
+ if (ctrl.sampler_index & 1)
+ tex_index = -1;
+ if (ctrl.sampler_index & 2)
+ sampler_index = -1;
+ }
+
+ if (ctrl.unk0 != 3)
+ printf("unk0:%d ", ctrl.unk0);
+ if (ctrl.unk1)
+ printf("unk1 ");
+ if (ctrl.unk2 != 0xf)
+ printf("unk2:%x ", ctrl.unk2);
+
+ switch (ctrl.result_type) {
+ case 0x4:
+ printf("f32 ");
+ break;
+ case 0xe:
+ printf("i32 ");
+ break;
+ case 0xf:
+ printf("u32 ");
+ break;
+ default:
+ printf("unktype(%x) ", ctrl.result_type);
+ }
+
+ switch (ctrl.tex_type) {
+ case 0:
+ printf("cube ");
+ break;
+ case 1:
+ printf("buffer ");
+ break;
+ case 2:
+ printf("2D ");
+ break;
+ case 3:
+ printf("3D ");
+ break;
+ }
+
+ if (ctrl.is_shadow)
+ printf("shadow ");
+ if (ctrl.is_array)
+ printf("array ");
+
+ if (!ctrl.filter) {
+ if (ctrl.calc_gradients) {
+ int comp = (controlBits >> 20) & 0x3;
+ printf("txg comp:%d ", comp);
+ } else {
+ printf("txf ");
+ }
+ } else {
+ if (!ctrl.not_supply_lod) {
+ if (ctrl.compute_lod)
+ printf("lod_bias ");
+ else
+ printf("lod ");
+ }
+
+ if (!ctrl.calc_gradients)
+ printf("grad ");
+ }
+
+ if (ctrl.texel_offset)
+ printf("offset ");
+ }
+ }
+
+ if (!dualTex) {
+ if (tex_index == -1)
+ printf("tex:indirect ");
+ else
+ printf("tex:%d ", tex_index);
+
+ if (sampler_index == -1)
+ printf("samp:indirect ");
+ else
+ printf("samp:%d ", sampler_index);
+ }
+ break;
+ }
+ case ADD_VARYING_INTERP: {
+ unsigned addr = ADD.op & 0x1f;
+ if (addr < 0b10100) {
+ // direct addr
+ printf("%d", addr);
+ } else if (addr < 0b11000) {
+ if (addr == 22)
+ printf("fragw");
+ else if (addr == 23)
+ printf("fragz");
+ else
+ printf("unk%d", addr);
+ } else {
+ dump_src(ADD.op & 0x7, regs, consts, false);
+ }
+ printf(", ");
+ dump_src(ADD.src0, regs, consts, false);
+ break;
+ }
+ case ADD_VARYING_ADDRESS: {
+ dump_src(ADD.src0, regs, consts, false);
+ printf(", ");
+ dump_src(ADD.op & 0x7, regs, consts, false);
+ printf(", ");
+ unsigned location = (ADD.op >> 3) & 0x1f;
+ if (location < 16) {
+ printf("location:%d", location);
+ } else if (location == 20) {
+ printf("location:%u", (uint32_t) get_const(consts, regs));
+ } else if (location == 21) {
+ printf("location:%u", (uint32_t) (get_const(consts, regs) >> 32));
+ } else {
+ printf("location:%d(unk)", location);
+ }
+ break;
+ }
+ case ADD_LOAD_ATTR:
+ printf("location:%d, ", (ADD.op >> 3) & 0xf);
+ case ADD_TWO_SRC:
+ dump_src(ADD.src0, regs, consts, false);
+ printf(", ");
+ dump_src(ADD.op & 0x7, regs, consts, false);
+ break;
+ case ADD_THREE_SRC:
+ dump_src(ADD.src0, regs, consts, false);
+ printf(", ");
+ dump_src(ADD.op & 0x7, regs, consts, false);
+ printf(", ");
+ dump_src((ADD.op >> 3) & 0x7, regs, consts, false);
+ break;
+ case ADD_FADD:
+ case ADD_FMINMAX:
+ if (ADD.op & 0x10)
+ printf("-");
+ if (ADD.op & 0x1000)
+ printf("abs(");
+ dump_src(ADD.src0, regs, consts, false);
+ switch ((ADD.op >> 6) & 0x3) {
+ case 3:
+ printf(".x");
break;
- case ADD_TEX:
- case ADD_TEX_COMPACT: {
- int tex_index;
- int sampler_index;
- bool dualTex = false;
- if (info.src_type == ADD_TEX_COMPACT) {
- tex_index = (ADD.op >> 3) & 0x7;
- sampler_index = (ADD.op >> 7) & 0x7;
- bool unknown = (ADD.op & 0x40);
- // TODO: figure out if the unknown bit is ever 0
- if (!unknown)
- printf("unknown ");
- } else {
- uint64_t constVal = get_const(consts, regs);
- uint32_t controlBits = (ADD.op & 0x8) ? (constVal >> 32) : constVal;
- struct bifrost_tex_ctrl ctrl;
- memcpy((char *) &ctrl, (char *) &controlBits, sizeof(ctrl));
-
- // TODO: figure out what actually triggers dual-tex
- if (ctrl.result_type == 9) {
- struct bifrost_dual_tex_ctrl dualCtrl;
- memcpy((char *) &dualCtrl, (char *) &controlBits, sizeof(ctrl));
- printf("(dualtex) tex0:%d samp0:%d tex1:%d samp1:%d ",
- dualCtrl.tex_index0, dualCtrl.sampler_index0,
- dualCtrl.tex_index1, dualCtrl.sampler_index1);
- if (dualCtrl.unk0 != 3)
- printf("unk:%d ", dualCtrl.unk0);
- dualTex = true;
- } else {
- if (ctrl.no_merge_index) {
- tex_index = ctrl.tex_index;
- sampler_index = ctrl.sampler_index;
- } else {
- tex_index = sampler_index = ctrl.tex_index;
- unsigned unk = ctrl.sampler_index >> 2;
- if (unk != 3)
- printf("unk:%d ", unk);
- if (ctrl.sampler_index & 1)
- tex_index = -1;
- if (ctrl.sampler_index & 2)
- sampler_index = -1;
- }
-
- if (ctrl.unk0 != 3)
- printf("unk0:%d ", ctrl.unk0);
- if (ctrl.unk1)
- printf("unk1 ");
- if (ctrl.unk2 != 0xf)
- printf("unk2:%x ", ctrl.unk2);
-
- switch (ctrl.result_type) {
- case 0x4:
- printf("f32 "); break;
- case 0xe:
- printf("i32 "); break;
- case 0xf:
- printf("u32 "); break;
- default:
- printf("unktype(%x) ", ctrl.result_type);
- }
-
- switch (ctrl.tex_type) {
- case 0:
- printf("cube "); break;
- case 1:
- printf("buffer "); break;
- case 2:
- printf("2D "); break;
- case 3:
- printf("3D "); break;
- }
-
- if (ctrl.is_shadow)
- printf("shadow ");
- if (ctrl.is_array)
- printf("array ");
-
- if (!ctrl.filter) {
- if (ctrl.calc_gradients) {
- int comp = (controlBits >> 20) & 0x3;
- printf("txg comp:%d ", comp);
- } else {
- printf("txf ");
- }
- } else {
- if (!ctrl.not_supply_lod) {
- if (ctrl.compute_lod)
- printf("lod_bias ");
- else
- printf("lod ");
- }
-
- if (!ctrl.calc_gradients)
- printf("grad ");
- }
-
- if (ctrl.texel_offset)
- printf("offset ");
- }
- }
-
- if (!dualTex) {
- if (tex_index == -1)
- printf("tex:indirect ");
- else
- printf("tex:%d ", tex_index);
-
- if (sampler_index == -1)
- printf("samp:indirect ");
- else
- printf("samp:%d ", sampler_index);
- }
- break;
- }
- case ADD_VARYING_INTERP: {
- unsigned addr = ADD.op & 0x1f;
- if (addr < 0b10100) {
- // direct addr
- printf("%d", addr);
- } else if (addr < 0b11000) {
- if (addr == 22)
- printf("fragw");
- else if (addr == 23)
- printf("fragz");
- else
- printf("unk%d", addr);
- } else {
- dump_src(ADD.op & 0x7, regs, consts, false);
- }
- printf(", ");
- dump_src(ADD.src0, regs, consts, false);
- break;
- }
- case ADD_VARYING_ADDRESS: {
- dump_src(ADD.src0, regs, consts, false);
- printf(", ");
- dump_src(ADD.op & 0x7, regs, consts, false);
- printf(", ");
- unsigned location = (ADD.op >> 3) & 0x1f;
- if (location < 16) {
- printf("location:%d", location);
- } else if (location == 20) {
- printf("location:%u", (uint32_t) get_const(consts, regs));
- } else if (location == 21) {
- printf("location:%u", (uint32_t) (get_const(consts, regs) >> 32));
- } else {
- printf("location:%d(unk)", location);
- }
- break;
- }
- case ADD_LOAD_ATTR:
- printf("location:%d, ", (ADD.op >> 3) & 0xf);
- case ADD_TWO_SRC:
- dump_src(ADD.src0, regs, consts, false);
- printf(", ");
- dump_src(ADD.op & 0x7, regs, consts, false);
- break;
- case ADD_THREE_SRC:
- dump_src(ADD.src0, regs, consts, false);
- printf(", ");
- dump_src(ADD.op & 0x7, regs, consts, false);
- printf(", ");
- dump_src((ADD.op >> 3) & 0x7, regs, consts, false);
- break;
- case ADD_FADD:
- case ADD_FMINMAX:
- if (ADD.op & 0x10)
- printf("-");
- if (ADD.op & 0x1000)
- printf("abs(");
- dump_src(ADD.src0, regs, consts, false);
- switch ((ADD.op >> 6) & 0x3) {
- case 3:
- printf(".x");
- break;
- default:
- break;
- }
- if (ADD.op & 0x1000)
- printf(")");
- printf(", ");
- if (ADD.op & 0x20)
- printf("-");
- if (ADD.op & 0x8)
- printf("abs(");
- dump_src(ADD.op & 0x7, regs, consts, false);
- switch ((ADD.op >> 6) & 0x3) {
- case 1:
- case 3:
- printf(".x");
- break;
- case 2:
- printf(".y");
- break;
- case 0:
- break;
- default:
- printf(".unk");
- break;
- }
- if (ADD.op & 0x8)
- printf(")");
- break;
- case ADD_FADD16:
- if (ADD.op & 0x10)
- printf("-");
- if (ADD.op & 0x1000)
- printf("abs(");
- dump_src(ADD.src0, regs, consts, false);
- if (ADD.op & 0x1000)
- printf(")");
- dump_16swizzle((ADD.op >> 6) & 0x3);
- printf(", ");
- if (ADD.op & 0x20)
- printf("-");
- if (ADD.op & 0x8)
- printf("abs(");
- dump_src(ADD.op & 0x7, regs, consts, false);
- dump_16swizzle((ADD.op >> 8) & 0x3);
- if (ADD.op & 0x8)
- printf(")");
- break;
- case ADD_FMINMAX16: {
- bool abs1 = ADD.op & 0x8;
- bool abs2 = (ADD.op & 0x7) < ADD.src0;
- if (ADD.op & 0x10)
- printf("-");
- if (abs1 || abs2)
- printf("abs(");
- dump_src(ADD.src0, regs, consts, false);
- dump_16swizzle((ADD.op >> 6) & 0x3);
- if (abs1 || abs2)
- printf(")");
- printf(", ");
- if (ADD.op & 0x20)
- printf("-");
- if (abs1 && abs2)
- printf("abs(");
- dump_src(ADD.op & 0x7, regs, consts, false);
- dump_16swizzle((ADD.op >> 8) & 0x3);
- if (abs1 && abs2)
- printf(")");
- break;
- }
- case ADD_FADDMscale: {
- if (ADD.op & 0x400)
- printf("-");
- if (ADD.op & 0x200)
- printf("abs(");
- dump_src(ADD.src0, regs, consts, false);
- if (ADD.op & 0x200)
- printf(")");
-
- printf(", ");
-
- if (ADD.op & 0x800)
- printf("-");
- dump_src(ADD.op & 0x7, regs, consts, false);
-
- printf(", ");
-
- dump_src((ADD.op >> 3) & 0x7, regs, consts, false);
- break;
- }
- case ADD_FCMP:
- if (ADD.op & 0x400) {
- printf("-");
- }
- if (ADD.op & 0x100) {
- printf("abs(");
- }
- dump_src(ADD.src0, regs, consts, false);
- switch ((ADD.op >> 6) & 0x3) {
- case 3:
- printf(".x");
- break;
- default:
- break;
- }
- if (ADD.op & 0x100) {
- printf(")");
- }
- printf(", ");
- if (ADD.op & 0x200) {
- printf("abs(");
- }
- dump_src(ADD.op & 0x7, regs, consts, false);
- switch ((ADD.op >> 6) & 0x3) {
- case 1:
- case 3:
- printf(".x");
- break;
- case 2:
- printf(".y");
- break;
- case 0:
- break;
- default:
- printf(".unk");
- break;
- }
- if (ADD.op & 0x200) {
- printf(")");
- }
- break;
- case ADD_FCMP16:
- dump_src(ADD.src0, regs, consts, false);
- dump_16swizzle((ADD.op >> 6) & 0x3);
- printf(", ");
- dump_src(ADD.op & 0x7, regs, consts, false);
- dump_16swizzle((ADD.op >> 8) & 0x3);
- break;
- case ADD_BRANCH: {
- enum branch_code code = (enum branch_code) ((ADD.op >> 6) & 0x3f);
- enum branch_bit_size size = (enum branch_bit_size) ((ADD.op >> 9) & 0x7);
- if (code != BR_ALWAYS) {
- dump_src(ADD.src0, regs, consts, false);
- switch (size) {
- case BR_SIZE_16XX:
- printf(".x");
- break;
- case BR_SIZE_16YY:
- case BR_SIZE_16YX0:
- case BR_SIZE_16YX1:
- printf(".y");
- break;
- case BR_SIZE_ZERO: {
- unsigned ctrl = (ADD.op >> 1) & 0x3;
- switch (ctrl) {
- case 1:
- printf(".y");
- break;
- case 2:
- printf(".x");
- break;
- default:
- break;
- }
- }
- default:
- break;
- }
- printf(", ");
- }
- if (code != BR_ALWAYS && size != BR_SIZE_ZERO) {
- dump_src(ADD.op & 0x7, regs, consts, false);
- switch (size) {
- case BR_SIZE_16XX:
- case BR_SIZE_16YX0:
- case BR_SIZE_16YX1:
- case BR_SIZE_32_AND_16X:
- printf(".x");
- break;
- case BR_SIZE_16YY:
- case BR_SIZE_32_AND_16Y:
- printf(".y");
- break;
- default:
- break;
- }
- printf(", ");
- }
- // I haven't had the chance to test if this actually specifies the
- // branch offset, since I couldn't get it to produce values other
- // than 5 (uniform/const high), but these three bits are always
- // consistent across branch instructions, so it makes sense...
- int offsetSrc = (ADD.op >> 3) & 0x7;
- if (offsetSrc == 4 || offsetSrc == 5) {
- // If the offset is known/constant, we can decode it
- uint32_t raw_offset;
- if (offsetSrc == 4)
- raw_offset = get_const(consts, regs);
- else
- raw_offset = get_const(consts, regs) >> 32;
- // The high 4 bits are flags, while the rest is the
- // twos-complement offset in bytes (here we convert to
- // clauses).
- int32_t branch_offset = ((int32_t) raw_offset << 4) >> 8;
-
- // If high4 is the high 4 bits of the last 64-bit constant,
- // this is calculated as (high4 + 4) & 0xf, or 0 if the branch
- // offset itself is the last constant. Not sure if this is
- // actually used, or just garbage in unused bits, but in any
- // case, we can just ignore it here since it's redundant. Note
- // that if there is any padding, this will be 4 since the
- // padding counts as the last constant.
- unsigned flags = raw_offset >> 28;
- (void) flags;
-
- // Note: the offset is in bytes, relative to the beginning of the
- // current clause, so a zero offset would be a loop back to the
- // same clause (annoyingly different from Midgard).
- printf("clause_%d", offset + branch_offset);
- } else {
- dump_src(offsetSrc, regs, consts, false);
- }
- }
+ default:
+ break;
+ }
+ if (ADD.op & 0x1000)
+ printf(")");
+ printf(", ");
+ if (ADD.op & 0x20)
+ printf("-");
+ if (ADD.op & 0x8)
+ printf("abs(");
+ dump_src(ADD.op & 0x7, regs, consts, false);
+ switch ((ADD.op >> 6) & 0x3) {
+ case 1:
+ case 3:
+ printf(".x");
+ break;
+ case 2:
+ printf(".y");
+ break;
+ case 0:
+ break;
+ default:
+ printf(".unk");
+ break;
+ }
+ if (ADD.op & 0x8)
+ printf(")");
+ break;
+ case ADD_FADD16:
+ if (ADD.op & 0x10)
+ printf("-");
+ if (ADD.op & 0x1000)
+ printf("abs(");
+ dump_src(ADD.src0, regs, consts, false);
+ if (ADD.op & 0x1000)
+ printf(")");
+ dump_16swizzle((ADD.op >> 6) & 0x3);
+ printf(", ");
+ if (ADD.op & 0x20)
+ printf("-");
+ if (ADD.op & 0x8)
+ printf("abs(");
+ dump_src(ADD.op & 0x7, regs, consts, false);
+ dump_16swizzle((ADD.op >> 8) & 0x3);
+ if (ADD.op & 0x8)
+ printf(")");
+ break;
+ case ADD_FMINMAX16: {
+ bool abs1 = ADD.op & 0x8;
+ bool abs2 = (ADD.op & 0x7) < ADD.src0;
+ if (ADD.op & 0x10)
+ printf("-");
+ if (abs1 || abs2)
+ printf("abs(");
+ dump_src(ADD.src0, regs, consts, false);
+ dump_16swizzle((ADD.op >> 6) & 0x3);
+ if (abs1 || abs2)
+ printf(")");
+ printf(", ");
+ if (ADD.op & 0x20)
+ printf("-");
+ if (abs1 && abs2)
+ printf("abs(");
+ dump_src(ADD.op & 0x7, regs, consts, false);
+ dump_16swizzle((ADD.op >> 8) & 0x3);
+ if (abs1 && abs2)
+ printf(")");
+ break;
+ }
+ case ADD_FADDMscale: {
+ if (ADD.op & 0x400)
+ printf("-");
+ if (ADD.op & 0x200)
+ printf("abs(");
+ dump_src(ADD.src0, regs, consts, false);
+ if (ADD.op & 0x200)
+ printf(")");
+
+ printf(", ");
+
+ if (ADD.op & 0x800)
+ printf("-");
+ dump_src(ADD.op & 0x7, regs, consts, false);
+
+ printf(", ");
+
+ dump_src((ADD.op >> 3) & 0x7, regs, consts, false);
+ break;
+ }
+ case ADD_FCMP:
+ if (ADD.op & 0x400) {
+ printf("-");
+ }
+ if (ADD.op & 0x100) {
+ printf("abs(");
+ }
+ dump_src(ADD.src0, regs, consts, false);
+ switch ((ADD.op >> 6) & 0x3) {
+ case 3:
+ printf(".x");
+ break;
+ default:
+ break;
+ }
+ if (ADD.op & 0x100) {
+ printf(")");
+ }
+ printf(", ");
+ if (ADD.op & 0x200) {
+ printf("abs(");
+ }
+ dump_src(ADD.op & 0x7, regs, consts, false);
+ switch ((ADD.op >> 6) & 0x3) {
+ case 1:
+ case 3:
+ printf(".x");
+ break;
+ case 2:
+ printf(".y");
+ break;
+ case 0:
+ break;
+ default:
+ printf(".unk");
+ break;
+ }
+ if (ADD.op & 0x200) {
+ printf(")");
+ }
+ break;
+ case ADD_FCMP16:
+ dump_src(ADD.src0, regs, consts, false);
+ dump_16swizzle((ADD.op >> 6) & 0x3);
+ printf(", ");
+ dump_src(ADD.op & 0x7, regs, consts, false);
+ dump_16swizzle((ADD.op >> 8) & 0x3);
+ break;
+ case ADD_BRANCH: {
+ enum branch_code code = (enum branch_code) ((ADD.op >> 6) & 0x3f);
+ enum branch_bit_size size = (enum branch_bit_size) ((ADD.op >> 9) & 0x7);
+ if (code != BR_ALWAYS) {
+ dump_src(ADD.src0, regs, consts, false);
+ switch (size) {
+ case BR_SIZE_16XX:
+ printf(".x");
+ break;
+ case BR_SIZE_16YY:
+ case BR_SIZE_16YX0:
+ case BR_SIZE_16YX1:
+ printf(".y");
+ break;
+ case BR_SIZE_ZERO: {
+ unsigned ctrl = (ADD.op >> 1) & 0x3;
+ switch (ctrl) {
+ case 1:
+ printf(".y");
+ break;
+ case 2:
+ printf(".x");
+ break;
+ default:
+ break;
+ }
+ }
+ default:
+ break;
+ }
+ printf(", ");
+ }
+ if (code != BR_ALWAYS && size != BR_SIZE_ZERO) {
+ dump_src(ADD.op & 0x7, regs, consts, false);
+ switch (size) {
+ case BR_SIZE_16XX:
+ case BR_SIZE_16YX0:
+ case BR_SIZE_16YX1:
+ case BR_SIZE_32_AND_16X:
+ printf(".x");
+ break;
+ case BR_SIZE_16YY:
+ case BR_SIZE_32_AND_16Y:
+ printf(".y");
+ break;
+ default:
+ break;
+ }
+ printf(", ");
+ }
+ // I haven't had the chance to test if this actually specifies the
+ // branch offset, since I couldn't get it to produce values other
+ // than 5 (uniform/const high), but these three bits are always
+ // consistent across branch instructions, so it makes sense...
+ int offsetSrc = (ADD.op >> 3) & 0x7;
+ if (offsetSrc == 4 || offsetSrc == 5) {
+ // If the offset is known/constant, we can decode it
+ uint32_t raw_offset;
+ if (offsetSrc == 4)
+ raw_offset = get_const(consts, regs);
+ else
+ raw_offset = get_const(consts, regs) >> 32;
+ // The high 4 bits are flags, while the rest is the
+ // twos-complement offset in bytes (here we convert to
+ // clauses).
+ int32_t branch_offset = ((int32_t) raw_offset << 4) >> 8;
+
+ // If high4 is the high 4 bits of the last 64-bit constant,
+ // this is calculated as (high4 + 4) & 0xf, or 0 if the branch
+ // offset itself is the last constant. Not sure if this is
+ // actually used, or just garbage in unused bits, but in any
+ // case, we can just ignore it here since it's redundant. Note
+ // that if there is any padding, this will be 4 since the
+ // padding counts as the last constant.
+ unsigned flags = raw_offset >> 28;
+ (void) flags;
+
+ // Note: the offset is in bytes, relative to the beginning of the
+ // current clause, so a zero offset would be a loop back to the
+ // same clause (annoyingly different from Midgard).
+ printf("clause_%d", offset + branch_offset);
+ } else {
+ dump_src(offsetSrc, regs, consts, false);
+ }
+ }
}
if (info.has_data_reg) {
printf(", R%d", data_reg);
@@ -1981,7 +2046,8 @@ void dump_instr(const struct bifrost_alu_inst *instr, struct bifrost_regs next_r
dump_add(instr->add_bits, regs, next_regs, consts, data_reg, offset, verbose);
}
-bool dump_clause(uint32_t *words, unsigned *size, unsigned offset, bool verbose) {
+bool dump_clause(uint32_t *words, unsigned *size, unsigned offset, bool verbose)
+{
// State for a decoded clause
struct bifrost_alu_inst instrs[8] = {};
uint64_t consts[6] = {};
@@ -2027,128 +2093,128 @@ bool dump_clause(uint32_t *words, unsigned *size, unsigned offset, bool verbose)
} else {
bool done = false;
switch ((tag >> 3) & 0x7) {
- case 0x0:
- switch (tag & 0x7) {
- case 0x3:
- main_instr.add_bits |= bits(words[3], 29, 32) << 17;
- instrs[1] = main_instr;
- num_instrs = 2;
- done = stop;
- break;
- case 0x4:
- instrs[2].add_bits = bits(words[3], 0, 17) | bits(words[3], 29, 32) << 17;
- instrs[2].fma_bits |= bits(words[2], 19, 32) << 10;
- consts[0] = const0;
- num_instrs = 3;
- num_consts = 1;
- done = stop;
- break;
- case 0x1:
- case 0x5:
- instrs[2].add_bits = bits(words[3], 0, 17) | bits(words[3], 29, 32) << 17;
- instrs[2].fma_bits |= bits(words[2], 19, 32) << 10;
- main_instr.add_bits |= bits(words[3], 26, 29) << 17;
- instrs[3] = main_instr;
- if ((tag & 0x7) == 0x5) {
- num_instrs = 4;
- done = stop;
- }
- break;
- case 0x6:
- instrs[5].add_bits = bits(words[3], 0, 17) | bits(words[3], 29, 32) << 17;
- instrs[5].fma_bits |= bits(words[2], 19, 32) << 10;
- consts[0] = const0;
- num_instrs = 6;
- num_consts = 1;
- done = stop;
- break;
- case 0x7:
- instrs[5].add_bits = bits(words[3], 0, 17) | bits(words[3], 29, 32) << 17;
- instrs[5].fma_bits |= bits(words[2], 19, 32) << 10;
- main_instr.add_bits |= bits(words[3], 26, 29) << 17;
- instrs[6] = main_instr;
- num_instrs = 7;
- done = stop;
- break;
- default:
- printf("unknown tag bits 0x%02x\n", tag);
- }
+ case 0x0:
+ switch (tag & 0x7) {
+ case 0x3:
+ main_instr.add_bits |= bits(words[3], 29, 32) << 17;
+ instrs[1] = main_instr;
+ num_instrs = 2;
+ done = stop;
break;
- case 0x2:
- case 0x3: {
- unsigned idx = ((tag >> 3) & 0x7) == 2 ? 4 : 7;
- main_instr.add_bits |= (tag & 0x7) << 17;
- instrs[idx] = main_instr;
- consts[0] |= (bits(words[2], 19, 32) | ((uint64_t) words[3] << 13)) << 19;
- num_consts = 1;
- num_instrs = idx + 1;
- done = stop;
- break;
- }
- case 0x4: {
- unsigned idx = stop ? 4 : 1;
- main_instr.add_bits |= (tag & 0x7) << 17;
- instrs[idx] = main_instr;
- instrs[idx + 1].fma_bits |= bits(words[3], 22, 32);
- instrs[idx + 1].reg_bits = bits(words[2], 19, 32) | (bits(words[3], 0, 22) << (32 - 19));
- break;
- }
- case 0x1:
- // only constants can come after this
- num_instrs = 1;
+ case 0x4:
+ instrs[2].add_bits = bits(words[3], 0, 17) | bits(words[3], 29, 32) << 17;
+ instrs[2].fma_bits |= bits(words[2], 19, 32) << 10;
+ consts[0] = const0;
+ num_instrs = 3;
+ num_consts = 1;
done = stop;
+ break;
+ case 0x1:
case 0x5:
- header_bits = bits(words[2], 19, 32) | ((uint64_t) words[3] << (32 - 19));
- main_instr.add_bits |= (tag & 0x7) << 17;
- instrs[0] = main_instr;
+ instrs[2].add_bits = bits(words[3], 0, 17) | bits(words[3], 29, 32) << 17;
+ instrs[2].fma_bits |= bits(words[2], 19, 32) << 10;
+ main_instr.add_bits |= bits(words[3], 26, 29) << 17;
+ instrs[3] = main_instr;
+ if ((tag & 0x7) == 0x5) {
+ num_instrs = 4;
+ done = stop;
+ }
break;
case 0x6:
- case 0x7: {
- unsigned pos = tag & 0xf;
- // note that `pos' encodes both the total number of
- // instructions and the position in the constant stream,
- // presumably because decoded constants and instructions
- // share a buffer in the decoder, but we only care about
- // the position in the constant stream; the total number of
- // instructions is redundant.
- unsigned const_idx = 7;
- switch (pos) {
- case 0:
- case 1:
- case 2:
- case 6:
- const_idx = 0;
- break;
- case 3:
- case 4:
- case 7:
- case 9:
- const_idx = 1;
- break;
- case 5:
- case 0xa:
- const_idx = 2;
- break;
- case 8:
- case 0xb:
- case 0xc:
- const_idx = 3;
- break;
- case 0xd:
- const_idx = 4;
- break;
- default:
- printf("# unknown pos 0x%x\n", pos);
- }
- if (num_consts < const_idx + 2)
- num_consts = const_idx + 2;
- consts[const_idx] = const0;
- consts[const_idx + 1] = const1;
- done = stop;
- break;
- }
+ instrs[5].add_bits = bits(words[3], 0, 17) | bits(words[3], 29, 32) << 17;
+ instrs[5].fma_bits |= bits(words[2], 19, 32) << 10;
+ consts[0] = const0;
+ num_instrs = 6;
+ num_consts = 1;
+ done = stop;
+ break;
+ case 0x7:
+ instrs[5].add_bits = bits(words[3], 0, 17) | bits(words[3], 29, 32) << 17;
+ instrs[5].fma_bits |= bits(words[2], 19, 32) << 10;
+ main_instr.add_bits |= bits(words[3], 26, 29) << 17;
+ instrs[6] = main_instr;
+ num_instrs = 7;
+ done = stop;
+ break;
+ default:
+ printf("unknown tag bits 0x%02x\n", tag);
+ }
+ break;
+ case 0x2:
+ case 0x3: {
+ unsigned idx = ((tag >> 3) & 0x7) == 2 ? 4 : 7;
+ main_instr.add_bits |= (tag & 0x7) << 17;
+ instrs[idx] = main_instr;
+ consts[0] |= (bits(words[2], 19, 32) | ((uint64_t) words[3] << 13)) << 19;
+ num_consts = 1;
+ num_instrs = idx + 1;
+ done = stop;
+ break;
+ }
+ case 0x4: {
+ unsigned idx = stop ? 4 : 1;
+ main_instr.add_bits |= (tag & 0x7) << 17;
+ instrs[idx] = main_instr;
+ instrs[idx + 1].fma_bits |= bits(words[3], 22, 32);
+ instrs[idx + 1].reg_bits = bits(words[2], 19, 32) | (bits(words[3], 0, 22) << (32 - 19));
+ break;
+ }
+ case 0x1:
+ // only constants can come after this
+ num_instrs = 1;
+ done = stop;
+ case 0x5:
+ header_bits = bits(words[2], 19, 32) | ((uint64_t) words[3] << (32 - 19));
+ main_instr.add_bits |= (tag & 0x7) << 17;
+ instrs[0] = main_instr;
+ break;
+ case 0x6:
+ case 0x7: {
+ unsigned pos = tag & 0xf;
+ // note that `pos' encodes both the total number of
+ // instructions and the position in the constant stream,
+ // presumably because decoded constants and instructions
+ // share a buffer in the decoder, but we only care about
+ // the position in the constant stream; the total number of
+ // instructions is redundant.
+ unsigned const_idx = 7;
+ switch (pos) {
+ case 0:
+ case 1:
+ case 2:
+ case 6:
+ const_idx = 0;
+ break;
+ case 3:
+ case 4:
+ case 7:
+ case 9:
+ const_idx = 1;
+ break;
+ case 5:
+ case 0xa:
+ const_idx = 2;
+ break;
+ case 8:
+ case 0xb:
+ case 0xc:
+ const_idx = 3;
+ break;
+ case 0xd:
+ const_idx = 4;
+ break;
default:
- break;
+ printf("# unknown pos 0x%x\n", pos);
+ }
+ if (num_consts < const_idx + 2)
+ num_consts = const_idx + 2;
+ consts[const_idx] = const0;
+ consts[const_idx + 1] = const1;
+ done = stop;
+ break;
+ }
+ default:
+ break;
}
if (done)
@@ -2173,10 +2239,10 @@ bool dump_clause(uint32_t *words, unsigned *size, unsigned offset, bool verbose)
struct bifrost_regs next_regs;
if (i + 1 == num_instrs) {
memcpy((char *) &next_regs, (char *) &instrs[0].reg_bits,
- sizeof(next_regs));
+ sizeof(next_regs));
} else {
memcpy((char *) &next_regs, (char *) &instrs[i + 1].reg_bits,
- sizeof(next_regs));
+ sizeof(next_regs));
}
dump_instr(&instrs[i], next_regs, consts, header.datareg, offset, verbose);
@@ -2198,8 +2264,7 @@ void disassemble_bifrost(uint8_t *code, size_t size, bool verbose)
uint32_t *words_end = words + (size / 4);
// used for displaying branch targets
unsigned offset = 0;
- while (words != words_end)
- {
+ while (words != words_end) {
// we don't know what the program-end bit is quite yet, so for now just
// assume that an all-0 quadword is padding
uint32_t zero[4] = {};
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-04 02:20:48 +0000