From: Steve Longerbeam <slongerbeam@xxxxxxxxx>
Catch calculated tile offsets that are not 8-byte aligned as required by the
IDMAC engine and return error in calc_tile_offsets().
Signed-off-by: Steve Longerbeam <slongerbeam@xxxxxxxxx>
---
New since v3.
---
drivers/gpu/ipu-v3/ipu-image-convert.c | 61 ++++++++++++++++----------
1 file changed, 37 insertions(+), 24 deletions(-)
diff --git a/drivers/gpu/ipu-v3/ipu-image-convert.c b/drivers/gpu/ipu-v3/ipu-image-convert.c
index b8a400182a00..5fccba176e39 100644
--- a/drivers/gpu/ipu-v3/ipu-image-convert.c
+++ b/drivers/gpu/ipu-v3/ipu-image-convert.c
@@ -459,8 +459,8 @@ static void calc_out_tile_map(struct ipu_image_convert_ctx *ctx)
}
}
-static void calc_tile_offsets_planar(struct ipu_image_convert_ctx *ctx,
- struct ipu_image_convert_image *image)
+static int calc_tile_offsets_planar(struct ipu_image_convert_ctx *ctx,
+ struct ipu_image_convert_image *image)
{
struct ipu_image_convert_chan *chan = ctx->chan;
struct ipu_image_convert_priv *priv = chan->priv;
@@ -509,24 +509,30 @@ static void calc_tile_offsets_planar(struct ipu_image_convert_ctx *ctx,
image->tile[tile].u_off = u_off;
image->tile[tile++].v_off = v_off;
- dev_dbg(priv->ipu->dev,
- "task %u: ctx %p: %s@[%d,%d]: y_off %08x, u_off %08x, v_off %08x\n",
- chan->ic_task, ctx,
- image->type == IMAGE_CONVERT_IN ?
- "Input" : "Output", row, col,
- y_off, u_off, v_off);
+ if ((y_off & 0x7) || (u_off & 0x7) || (v_off & 0x7)) {
+ dev_err(priv->ipu->dev,
+ "task %u: ctx %p: %s@[%d,%d]: "
+ "y_off %08x, u_off %08x, v_off %08x\n",
+ chan->ic_task, ctx,
+ image->type == IMAGE_CONVERT_IN ?
+ "Input" : "Output", row, col,
+ y_off, u_off, v_off);
+ return -EINVAL;
+ }
}
}
+
+ return 0;
}
-static void calc_tile_offsets_packed(struct ipu_image_convert_ctx *ctx,
- struct ipu_image_convert_image *image)
+static int calc_tile_offsets_packed(struct ipu_image_convert_ctx *ctx,
+ struct ipu_image_convert_image *image)
{
struct ipu_image_convert_chan *chan = ctx->chan;
struct ipu_image_convert_priv *priv = chan->priv;
const struct ipu_image_pixfmt *fmt = image->fmt;
unsigned int row, col, tile = 0;
- u32 w, h, bpp, stride;
+ u32 w, h, bpp, stride, offset;
u32 row_off, col_off;
/* setup some convenience vars */
@@ -541,27 +547,35 @@ static void calc_tile_offsets_packed(struct ipu_image_convert_ctx *ctx,
for (col = 0; col < image->num_cols; col++) {
col_off = (col * w * bpp) >> 3;
- image->tile[tile].offset = row_off + col_off;
+ offset = row_off + col_off;
+
+ image->tile[tile].offset = offset;
image->tile[tile].u_off = 0;
image->tile[tile++].v_off = 0;
- dev_dbg(priv->ipu->dev,
- "task %u: ctx %p: %s@[%d,%d]: phys %08x\n",
- chan->ic_task, ctx,
- image->type == IMAGE_CONVERT_IN ?
- "Input" : "Output", row, col,
- row_off + col_off);
+ if (offset & 0x7) {
+ dev_err(priv->ipu->dev,
+ "task %u: ctx %p: %s@[%d,%d]: "
+ "phys %08x\n",
+ chan->ic_task, ctx,
+ image->type == IMAGE_CONVERT_IN ?
+ "Input" : "Output", row, col,
+ row_off + col_off);
+ return -EINVAL;
+ }
}
}
+
+ return 0;
}
-static void calc_tile_offsets(struct ipu_image_convert_ctx *ctx,
+static int calc_tile_offsets(struct ipu_image_convert_ctx *ctx,
struct ipu_image_convert_image *image)
{
if (image->fmt->planar)
- calc_tile_offsets_planar(ctx, image);
- else
- calc_tile_offsets_packed(ctx, image);
+ return calc_tile_offsets_planar(ctx, image);
+
+ return calc_tile_offsets_packed(ctx, image);
}
/*
@@ -1199,9 +1213,8 @@ static int fill_image(struct ipu_image_convert_ctx *ctx,
ic_image->stride = ic_image->base.pix.bytesperline;
calc_tile_dimensions(ctx, ic_image);
- calc_tile_offsets(ctx, ic_image);
- return 0;
+ return calc_tile_offsets(ctx, ic_image);
}
/* borrowed from drivers/media/v4l2-core/v4l2-common.c */
--
2.19.0
