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authorAlexandre Courbot <acourbot@nvidia.com>2015-04-28 16:17:07 +0900
committerAlexandre Courbot <acourbot@nvidia.com>2015-06-08 17:41:20 +0900
commit89467baf290113a3036e0bbf158e51dba3b8738e (patch)
treefc2d7d21570f4576f753b93ec5c31d79f5428670
parent29f18d7dff61b5619f460399691790a3d77c3ce9 (diff)
downloadnouveau-89467baf290113a3036e0bbf158e51dba3b8738e.tar.gz
ibus/gk20a: increase SM wait timeout
Increase clock timeout for SYS, FPB and GPC in order to avoid operation failure at high gpcclk rate. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
-rw-r--r--drm/nouveau/nvkm/subdev/ibus/gk20a.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drm/nouveau/nvkm/subdev/ibus/gk20a.c b/drm/nouveau/nvkm/subdev/ibus/gk20a.c
index c0fdb89e7..24dcdfb58 100644
--- a/drm/nouveau/nvkm/subdev/ibus/gk20a.c
+++ b/drm/nouveau/nvkm/subdev/ibus/gk20a.c
@@ -38,6 +38,14 @@ gk20a_ibus_init_priv_ring(struct gk20a_ibus_priv *priv)
nv_wr32(priv, 0x12004c, 0x4);
nv_wr32(priv, 0x122204, 0x2);
nv_rd32(priv, 0x122204);
+
+ /*
+ * Bug: increase clock timeout to avoid operation failure at high
+ * gpcclk rate.
+ */
+ nv_wr32(priv, 0x122354, 0x800);
+ nv_wr32(priv, 0x128328, 0x800);
+ nv_wr32(priv, 0x124320, 0x800);
}
static void