diff options
| -rw-r--r-- | src/gallium/drivers/nv50/nv50_program.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/src/gallium/drivers/nv50/nv50_program.c b/src/gallium/drivers/nv50/nv50_program.c index c420b8be1c3..78ffc7f7ce9 100644 --- a/src/gallium/drivers/nv50/nv50_program.c +++ b/src/gallium/drivers/nv50/nv50_program.c @@ -945,6 +945,54 @@ emit_kil(struct nv50_pc *pc, struct nv50_reg *src) emit(pc, e); } +static void +convert_to_long(struct nv50_pc *pc, struct nv50_program_exec *e) +{ + unsigned q = 0, m = ~0; + + assert(!is_long(e)); + + switch (e->inst[0] >> 28) { + case 0x1: + /* MOV */ + q = 0x0403c000; + m = 0xffff7fff; + break; + case 0x8: + /* INTERP */ + m = ~0x02000000; + if (e->inst[0] & 0x02000000) + q = 0x00020000; + break; + case 0x9: + /* RCP */ + break; + case 0xB: + /* ADD */ + m = ~(127 << 16); + q = ((e->inst[0] & (~m)) >> 2); + break; + case 0xC: + /* MUL */ + m = ~0x00008000; + q = ((e->inst[0] & (~m)) << 12); + break; + case 0xE: + /* MAD (if src2 == dst) */ + q = ((e->inst[0] & 0x1fc) << 12); + break; + default: + assert(0); + break; + } + + set_long(pc, e); + pc->p->exec_size++; + + e->inst[0] &= m; + e->inst[1] |= q; +} + static struct nv50_reg * tgsi_dst(struct nv50_pc *pc, int c, const struct tgsi_full_dst_register *dst) { @@ -1971,6 +2019,30 @@ nv50_program_tx(struct nv50_program *p) } } + /* look for single half instructions and make them long */ + struct nv50_program_exec *e, *e_prev; + + for (k = 0, e = pc->p->exec_head, e_prev = NULL; e; e = e->next) { + if (!is_long(e)) + k++; + + if (!e->next || is_long(e->next)) { + if (k & 1) + convert_to_long(pc, e); + k = 0; + } + + if (e->next) + e_prev = e; + } + + if (!is_long(pc->p->exec_tail)) { + /* this may occur if moving FP results */ + assert(e_prev && !is_long(e_prev)); + convert_to_long(pc, e_prev); + convert_to_long(pc, pc->p->exec_tail); + } + assert(is_long(pc->p->exec_tail) && !is_immd(pc->p->exec_head)); pc->p->exec_tail->inst[1] |= 0x00000001; |