From 854cc0e4cb71d215b1104605f2dbf73578de8a94 Mon Sep 17 00:00:00 2001
From: Kelly Doran <kel.p.doran@gmail.com>
Date: Fri, 20 Dec 2013 11:07:26 -0600
Subject: [PATCH] drm/nvc0/gr: fix mthd data submission
If the initial data element is 0, it will never be written, even
though the value from the previous method may be there.
Signed-off-by: Kelly Doran <kel.p.doran@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---
drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
index 434bb4b0fa2e6..5c8a63dc506aa 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
@@ -334,7 +334,7 @@ nvc0_graph_mthd(struct nvc0_graph_priv *priv, struct nvc0_graph_mthd *mthds)
while ((mthd = &mthds[i++]) && (init = mthd->init)) {
u32 addr = 0x80000000 | mthd->oclass;
for (data = 0; init->count; init++) {
- if (data != init->data) {
+ if (init == mthd->init || data != init->data) {
nv_wr32(priv, 0x40448c, init->data);
data = init->data;
}
--
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