diff options
Diffstat (limited to 'src/gallium/drivers/nv50/nv50_program.c')
| -rw-r--r-- | src/gallium/drivers/nv50/nv50_program.c | 131 |
1 files changed, 78 insertions, 53 deletions
diff --git a/src/gallium/drivers/nv50/nv50_program.c b/src/gallium/drivers/nv50/nv50_program.c index 295725a6c06..1847e8ab4cd 100644 --- a/src/gallium/drivers/nv50/nv50_program.c +++ b/src/gallium/drivers/nv50/nv50_program.c @@ -154,6 +154,9 @@ struct nv50_pc { int if_lvl, loop_lvl; unsigned loop_pos[NV50_MAX_LOOP_NESTING]; + unsigned *insn_pos; /* actual program offset of each TGSI insn */ + boolean in_subroutine; + /* current instruction and total number of insns */ unsigned insn_cur; unsigned insn_nr; @@ -454,6 +457,14 @@ is_immd(struct nv50_program_exec *e) return FALSE; } +static boolean +is_join(struct nv50_program_exec *e) +{ + if (is_long(e) && (e->inst[1] & 3) == 2) + return TRUE; + return FALSE; +} + static INLINE void set_pred(struct nv50_pc *pc, unsigned pred, unsigned idx, struct nv50_program_exec *e) @@ -1354,66 +1365,53 @@ emit_kil(struct nv50_pc *pc, struct nv50_reg *src) } static struct nv50_program_exec * -emit_breakaddr(struct nv50_pc *pc) +emit_control_flow(struct nv50_pc *pc, unsigned op, int pred, unsigned cc) { struct nv50_program_exec *e = exec(pc); - e->inst[0] = 0x40000002; + e->inst[0] = (op << 28) | 2; set_long(pc, e); + if (pred >= 0) + set_pred(pc, cc, pred, e); emit(pc, e); return e; } -static void -emit_break(struct nv50_pc *pc, int pred, unsigned cc) +static INLINE struct nv50_program_exec * +emit_breakaddr(struct nv50_pc *pc) { - struct nv50_program_exec *e = exec(pc); - - e->inst[0] = 0x50000002; - set_long(pc, e); - if (pred >= 0) - set_pred(pc, cc, pred, e); + return emit_control_flow(pc, 0x4, -1, 0); +} - emit(pc, e); +static INLINE void +emit_break(struct nv50_pc *pc, int pred, unsigned cc) +{ + emit_control_flow(pc, 0x5, pred, cc); } -static struct nv50_program_exec * +static INLINE struct nv50_program_exec * emit_joinat(struct nv50_pc *pc) { - struct nv50_program_exec *e = exec(pc); - - e->inst[0] = 0xa0000002; - set_long(pc, e); - - emit(pc, e); - return e; + return emit_control_flow(pc, 0xa, -1, 0); } -static struct nv50_program_exec * +static INLINE struct nv50_program_exec * emit_branch(struct nv50_pc *pc, int pred, unsigned cc) { - struct nv50_program_exec *e = exec(pc); + return emit_control_flow(pc, 0x1, pred, cc); +} - e->inst[0] = 0x10000002; - set_long(pc, e); - if (pred >= 0) - set_pred(pc, cc, pred, e); - emit(pc, e); - return pc->p->exec_tail; +static INLINE struct nv50_program_exec * +emit_call(struct nv50_pc *pc, int pred, unsigned cc) +{ + return emit_control_flow(pc, 0x2, pred, cc); } -static void +static INLINE void emit_ret(struct nv50_pc *pc, int pred, unsigned cc) { - struct nv50_program_exec *e = exec(pc); - - e->inst[0] = 0x30000002; - set_long(pc, e); - if (pred >= 0) - set_pred(pc, cc, pred, e); - - emit(pc, e); + emit_control_flow(pc, 0x3, pred, cc); } #define QOP_ADD 0 @@ -2237,10 +2235,22 @@ nv50_program_tx_insn(struct nv50_pc *pc, pc->loop_pos[pc->loop_lvl++] = pc->p->exec_size; terminate_mbb(pc); break; + case TGSI_OPCODE_BGNSUB: + assert(!pc->in_subroutine); + pc->in_subroutine = TRUE; + /* probably not necessary, but align to 8 byte boundary */ + if (!is_long(pc->p->exec_tail)) + convert_to_long(pc, pc->p->exec_tail); + break; case TGSI_OPCODE_BRK: assert(pc->loop_lvl > 0); emit_break(pc, -1, 0); break; + case TGSI_OPCODE_CAL: + assert(inst->Label.Label < pc->insn_nr); + emit_call(pc, -1, 0)->param.index = inst->Label.Label; + /* replaced by actual offset in nv50_program_fixup_insns */ + break; case TGSI_OPCODE_CEIL: for (c = 0; c < 4; c++) { if (!(mask & (1 << c))) @@ -2348,6 +2358,10 @@ nv50_program_tx_insn(struct nv50_pc *pc, pc->loop_brka[pc->loop_lvl]->param.index = pc->p->exec_size; terminate_mbb(pc); break; + case TGSI_OPCODE_ENDSUB: + assert(pc->in_subroutine); + pc->in_subroutine = FALSE; + break; case TGSI_OPCODE_EX2: emit_preex2(pc, temp, src[0][0]); emit_flop(pc, NV50_FLOP_EX2, brdc, temp); @@ -2443,7 +2457,7 @@ nv50_program_tx_insn(struct nv50_pc *pc, emit_flop(pc, NV50_FLOP_RCP, brdc, src[0][0]); break; case TGSI_OPCODE_RET: - if (pc->p->type == PIPE_SHADER_FRAGMENT) + if (pc->p->type == PIPE_SHADER_FRAGMENT && !pc->in_subroutine) nv50_fp_move_results(pc); emit_ret(pc, -1, 0); break; @@ -2538,6 +2552,17 @@ nv50_program_tx_insn(struct nv50_pc *pc, emit_mov_immdval(pc, dst[3], 1.0); break; case TGSI_OPCODE_END: + if (pc->p->type == PIPE_SHADER_FRAGMENT) + nv50_fp_move_results(pc); + + /* last insn must be long so it can have the exit bit set */ + if (!is_long(pc->p->exec_tail)) + convert_to_long(pc, pc->p->exec_tail); + else + if (is_immd(pc->p->exec_tail) || is_join(pc->p->exec_tail)) + emit_nop(pc); + + pc->p->exec_tail->inst[1] |= 1; /* set exit bit */ break; default: NOUVEAU_ERR("invalid opcode %d\n", inst->Instruction.Opcode); @@ -3231,16 +3256,6 @@ nv50_program_fixup_insns(struct nv50_pc *pc) if (e->param.index >= 0 && !e->param.mask) bra_list[n++] = e; - /* last instruction must be long so it can have the exit bit set */ - if (!is_long(pc->p->exec_tail)) - convert_to_long(pc, pc->p->exec_tail); - /* set exit bit */ - pc->p->exec_tail->inst[1] |= 1; - - /* !immd on exit insn simultaneously means !join */ - assert(!is_immd(pc->p->exec_head)); - assert(!is_immd(pc->p->exec_tail)); - /* Make sure we don't have any single 32 bit instructions. */ for (e = pc->p->exec_head, pos = 0; e; e = e->next) { pos += is_long(e) ? 2 : 1; @@ -3249,12 +3264,24 @@ nv50_program_fixup_insns(struct nv50_pc *pc) for (i = 0; i < n; ++i) if (bra_list[i]->param.index >= pos) bra_list[i]->param.index += 1; + for (i = 0; i < pc->insn_nr; ++i) + if (pc->insn_pos[i] >= pos) + pc->insn_pos[i] += 1; convert_to_long(pc, e); ++pos; } } FREE(bra_list); + + if (!pc->p->info.opcode_count[TGSI_OPCODE_CAL]) + return; + + /* fill in CALL offsets */ + for (e = pc->p->exec_head; e; e = e->next) { + if ((e->inst[0] & 2) && (e->inst[0] >> 28) == 0x2) + e->param.index = pc->insn_pos[e->param.index]; + } } static boolean @@ -3276,19 +3303,20 @@ nv50_program_tx(struct nv50_program *p) if (ret == FALSE) goto out_cleanup; + pc->insn_pos = MALLOC(pc->insn_nr * sizeof(unsigned)); + tgsi_parse_init(&parse, pc->p->pipe.tokens); while (!tgsi_parse_end_of_tokens(&parse)) { const union tgsi_full_token *tok = &parse.FullToken; - /* don't allow half insn/immd on first and last instruction */ + /* previously allow32 was FALSE for first & last instruction */ pc->allow32 = TRUE; - if (pc->insn_cur == 0 || pc->insn_cur + 2 == pc->insn_nr) - pc->allow32 = FALSE; tgsi_parse_token(&parse); switch (tok->Token.Type) { case TGSI_TOKEN_TYPE_INSTRUCTION: + pc->insn_pos[pc->insn_cur] = pc->p->exec_size; ++pc->insn_cur; ret = nv50_tgsi_insn(pc, tok); if (ret == FALSE) @@ -3299,9 +3327,6 @@ nv50_program_tx(struct nv50_program *p) } } - if (pc->p->type == PIPE_SHADER_FRAGMENT) - nv50_fp_move_results(pc); - nv50_program_fixup_insns(pc); p->param_nr = pc->param_nr * 4; |