[Nouveau] [PATCH 09/12] drm/nouveau/graph: pad firmware code at load time

[Alexandre Courbot]

Pad the microcode to a multiple of 0x40, otherwise firmware will fail to
run from non-prepadded firmware files.

Signed-off-by: Alexandre Courbot <acourbot at nvidia.com>
---
 drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
index f997a18f5760..367e72daf8b1 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
@@ -768,6 +768,10 @@ nvc0_graph_init_fw(struct nvc0_graph_priv *priv, u32 fuc_base,
 			nv_wr32(priv, fuc_base + 0x0188, i >> 6);
 		nv_wr32(priv, fuc_base + 0x0184, code->data[i]);
 	}
+
+	/* code must be padded to 0x40 */
+	for (; i < (((code->size / 4) + 0x3f) & ~0x3f); i++)
+		nv_wr32(priv, fuc_base + 0x0184, 0);
 }
 
 static void
-- 
1.9.1