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-rw-r--r--src/gallium/drivers/nv50/nv50_program.c72
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;