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authorChristoph Bumiller <e0425955@student.tuwien.ac.at>2009-05-23 15:15:20 +0200
committerBen Skeggs <bskeggs@redhat.com>2009-05-28 16:06:23 +1000
commit7ab96f4f733437de693b9578c3649b56069e6f24 (patch)
tree1204dbc9034ba6e40abd6d52834ddf5f659885d7
parent708c711f8361ea82c1217e2614914ae047bc5bdf (diff)
nv50: release hw TEMPs early
Since we know when we don't use a TEMP or FP ATTR register anymore, we can release their hw resources early.
-rw-r--r--src/gallium/drivers/nv50/nv50_program.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/src/gallium/drivers/nv50/nv50_program.c b/src/gallium/drivers/nv50/nv50_program.c
index 30aa358860..15d7ab0da5 100644
--- a/src/gallium/drivers/nv50/nv50_program.c
+++ b/src/gallium/drivers/nv50/nv50_program.c
@@ -214,6 +214,22 @@ assimilate_temp(struct nv50_pc *pc, struct nv50_reg *dst, struct nv50_reg *src)
FREE(src);
}
+/* release the hardware resource held by r */
+static void
+release_hw(struct nv50_pc *pc, struct nv50_reg *r)
+{
+ assert(r->type == P_TEMP);
+ if (r->hw == -1)
+ return;
+
+ assert(pc->r_temp[r->hw] == r);
+ pc->r_temp[r->hw] = NULL;
+
+ r->acc = 0;
+ if (r->index == -1)
+ FREE(r);
+}
+
static void
free_temp(struct nv50_pc *pc, struct nv50_reg *r)
{
@@ -1496,6 +1512,9 @@ nv50_program_tx_insn(struct nv50_pc *pc, const union tgsi_full_token *tok)
continue;
if (src[i][c]->index == -1 && src[i][c]->type == P_IMMD)
FREE(src[i][c]);
+ else
+ if (src[i][c]->acc == pc->insn_cur)
+ release_hw(pc, src[i][c]);
}
}