[PATCH v2 07/10] drm/nouveau/graph: pad firmware code at load time

Alexandre Courbot
2014-04-21T06:04:16Z

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

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Thierry Reding <treding@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 e5b75f189988..013475c62986 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c
@@ -894,6 +894,10 @@ 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 bytes */
+ for (; i & 0x3f; i++)
+ nv_wr32(priv, fuc_base + 0x0184, 0);
}

static void
--
1.9.2