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drm/imx: IPUv3 image converter fixes and improvements

Browse Source 
Fix image converter seam handling for 1024x1024 pixel hardware
 limitation at the main processing section input, improve error
 handling, and slightly optimize for 1:1 conversions.
 Add support for newly defined 32-bit RGB V4L2 pixel formats.
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Merge tag 'imx-drm-next-2019-08-23' of git://git.pengutronix.de/pza/linux into drm-next

drm/imx: IPUv3 image converter fixes and improvements

Fix image converter seam handling for 1024x1024 pixel hardware
limitation at the main processing section input, improve error
handling, and slightly optimize for 1:1 conversions.
Add support for newly defined 32-bit RGB V4L2 pixel formats.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/1566573659.23587.2.camel@pengutronix.de
This commit is contained in:
Dave Airlie 2019-08-27 16:52:06 +10:00
commit 2467d946f9
4 changed files with 175 additions and 94 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/imx/Makefile
View File

@ -8,5 +8,4 @@ obj-$(CONFIG_DRM_IMX_PARALLEL_DISPLAY) += parallel-display.o
obj-$(CONFIG_DRM_IMX_TVE) += imx-tve.o
obj-$(CONFIG_DRM_IMX_LDB) += imx-ldb.o
obj-$(CONFIG_DRM_IMX_IPUV3) += imx-ipuv3-crtc.o
obj-$(CONFIG_DRM_IMX_HDMI) += dw_hdmi-imx.o

16
drivers/gpu/ipu-v3/ipu-common.c
View File

@ -113,13 +113,17 @@ enum ipu_color_space ipu_pixelformat_to_colorspace(u32 pixelformat)
case V4L2_PIX_FMT_NV16:
case V4L2_PIX_FMT_NV61:
return IPUV3_COLORSPACE_YUV;
case V4L2_PIX_FMT_XRGB32:
case V4L2_PIX_FMT_XBGR32:
case V4L2_PIX_FMT_RGB32:
case V4L2_PIX_FMT_BGR32:
case V4L2_PIX_FMT_RGB24:
case V4L2_PIX_FMT_BGR24:
case V4L2_PIX_FMT_RGB565:
case V4L2_PIX_FMT_BGR24:
case V4L2_PIX_FMT_RGB24:
case V4L2_PIX_FMT_ABGR32:
case V4L2_PIX_FMT_XBGR32:
case V4L2_PIX_FMT_BGRA32:
case V4L2_PIX_FMT_BGRX32:
case V4L2_PIX_FMT_RGBA32:
case V4L2_PIX_FMT_RGBX32:
case V4L2_PIX_FMT_ARGB32:
case V4L2_PIX_FMT_XRGB32:
return IPUV3_COLORSPACE_RGB;
default:
return IPUV3_COLORSPACE_UNKNOWN;

26
drivers/gpu/ipu-v3/ipu-cpmem.c
View File

@ -182,9 +182,27 @@ static int v4l2_pix_fmt_to_drm_fourcc(u32 pixelformat)
case V4L2_PIX_FMT_RGB32:
/* R G B A <=> [32:0] A:B:G:R */
return DRM_FORMAT_XBGR8888;
case V4L2_PIX_FMT_ABGR32:
/* B G R A <=> [32:0] A:R:G:B */
return DRM_FORMAT_ARGB8888;
case V4L2_PIX_FMT_XBGR32:
/* B G R X <=> [32:0] X:R:G:B */
return DRM_FORMAT_XRGB8888;
case V4L2_PIX_FMT_BGRA32:
/* A B G R <=> [32:0] R:G:B:A */
return DRM_FORMAT_RGBA8888;
case V4L2_PIX_FMT_BGRX32:
/* X B G R <=> [32:0] R:G:B:X */
return DRM_FORMAT_RGBX8888;
case V4L2_PIX_FMT_RGBA32:
/* R G B A <=> [32:0] A:B:G:R */
return DRM_FORMAT_ABGR8888;
case V4L2_PIX_FMT_RGBX32:
/* R G B X <=> [32:0] X:B:G:R */
return DRM_FORMAT_XBGR8888;
case V4L2_PIX_FMT_ARGB32:
/* A R G B <=> [32:0] B:G:R:A */
return DRM_FORMAT_BGRA8888;
case V4L2_PIX_FMT_XRGB32:
/* X R G B <=> [32:0] B:G:R:X */
return DRM_FORMAT_BGRX8888;
@ -823,8 +841,14 @@ int ipu_cpmem_set_image(struct ipuv3_channel *ch, struct ipu_image *image)
break;
case V4L2_PIX_FMT_RGB32:
case V4L2_PIX_FMT_BGR32:
case V4L2_PIX_FMT_XRGB32:
case V4L2_PIX_FMT_ABGR32:
case V4L2_PIX_FMT_XBGR32:
case V4L2_PIX_FMT_BGRA32:
case V4L2_PIX_FMT_BGRX32:
case V4L2_PIX_FMT_RGBA32:
case V4L2_PIX_FMT_RGBX32:
case V4L2_PIX_FMT_ARGB32:
case V4L2_PIX_FMT_XRGB32:
offset = image->rect.left * 4 +
image->rect.top * pix->bytesperline;
break;

226
drivers/gpu/ipu-v3/ipu-image-convert.c
View File

@ -251,6 +251,12 @@ static const struct ipu_image_pixfmt image_convert_formats[] = {
}, {
.fourcc = V4L2_PIX_FMT_XBGR32,
.bpp = 32,
}, {
.fourcc = V4L2_PIX_FMT_BGRX32,
.bpp = 32,
}, {
.fourcc = V4L2_PIX_FMT_RGBX32,
.bpp = 32,
}, {
.fourcc = V4L2_PIX_FMT_YUYV,
.bpp = 16,
@ -376,8 +382,11 @@ static inline int num_stripes(int dim)
/*
* Calculate downsizing coefficients, which are the same for all tiles,
* and bilinear resizing coefficients, which are used to find the best
* seam positions.
* and initial bilinear resizing coefficients, which are used to find the
* best seam positions.
* Also determine the number of tiles necessary to guarantee that no tile
* is larger than 1024 pixels in either dimension at the output and between
* IC downsizing and main processing sections.
*/
static int calc_image_resize_coefficients(struct ipu_image_convert_ctx *ctx,
struct ipu_image *in,
@ -391,6 +400,8 @@ static int calc_image_resize_coefficients(struct ipu_image_convert_ctx *ctx,
u32 resized_height = out->rect.height;
u32 resize_coeff_h;
u32 resize_coeff_v;
u32 cols;
u32 rows;
if (ipu_rot_mode_is_irt(ctx->rot_mode)) {
resized_width = out->rect.height;
@ -401,14 +412,12 @@ static int calc_image_resize_coefficients(struct ipu_image_convert_ctx *ctx,
if (WARN_ON(resized_width == 0 || resized_height == 0))
return -EINVAL;
while (downsized_width > 1024 ||
downsized_width >= resized_width * 2) {
while (downsized_width >= resized_width * 2) {
downsized_width >>= 1;
downsize_coeff_h++;
}
while (downsized_height > 1024 ||
downsized_height >= resized_height * 2) {
while (downsized_height >= resized_height * 2) {
downsized_height >>= 1;
downsize_coeff_v++;
}
@ -422,10 +431,18 @@ static int calc_image_resize_coefficients(struct ipu_image_convert_ctx *ctx,
resize_coeff_h = 8192 * (downsized_width - 1) / (resized_width - 1);
resize_coeff_v = 8192 * (downsized_height - 1) / (resized_height - 1);
/*
* Both the output of the IC downsizing section before being passed to
* the IC main processing section and the final output of the IC main
* processing section must be <= 1024 pixels in both dimensions.
*/
cols = num_stripes(max_t(u32, downsized_width, resized_width));
rows = num_stripes(max_t(u32, downsized_height, resized_height));
dev_dbg(ctx->chan->priv->ipu->dev,
"%s: hscale: >>%u, *8192/%u vscale: >>%u, *8192/%u, %ux%u tiles\n",
__func__, downsize_coeff_h, resize_coeff_h, downsize_coeff_v,
resize_coeff_v, ctx->in.num_cols, ctx->in.num_rows);
resize_coeff_v, cols, rows);
if (downsize_coeff_h > 2 || downsize_coeff_v > 2 ||
resize_coeff_h > 0x3fff || resize_coeff_v > 0x3fff)
@ -435,6 +452,8 @@ static int calc_image_resize_coefficients(struct ipu_image_convert_ctx *ctx,
ctx->downsize_coeff_v = downsize_coeff_v;
ctx->image_resize_coeff_h = resize_coeff_h;
ctx->image_resize_coeff_v = resize_coeff_v;
ctx->in.num_cols = cols;
ctx->in.num_rows = rows;
return 0;
}
@ -442,12 +461,10 @@ static int calc_image_resize_coefficients(struct ipu_image_convert_ctx *ctx,
#define round_closest(x, y) round_down((x) + (y)/2, (y))
/*
* Find the best aligned seam position in the inverval [out_start, out_end].
* Find the best aligned seam position for the given column / row index.
* Rotation and image offsets are out of scope.
*
* @out_start: start of inverval, must be within 1024 pixels / lines
* of out_end
* @out_end: end of interval, smaller than or equal to out_edge
* @index: column / row index, used to calculate valid interval
* @in_edge: input right / bottom edge
* @out_edge: output right / bottom edge
* @in_align: input alignment, either horizontal 8-byte line start address
@ -463,8 +480,7 @@ static int calc_image_resize_coefficients(struct ipu_image_convert_ctx *ctx,
* @_out_seam: aligned output seam position return value
*/
static void find_best_seam(struct ipu_image_convert_ctx *ctx,
unsigned int out_start,
unsigned int out_end,
unsigned int index,
unsigned int in_edge,
unsigned int out_edge,
unsigned int in_align,
@ -482,6 +498,24 @@ static void find_best_seam(struct ipu_image_convert_ctx *ctx,
unsigned int out_seam = 0;
unsigned int in_seam = 0;
unsigned int min_diff = UINT_MAX;
unsigned int out_start;
unsigned int out_end;
unsigned int in_start;
unsigned int in_end;
/* Start within 1024 pixels of the right / bottom edge */
out_start = max_t(int, index * out_align, out_edge - 1024);
/* End before having to add more columns to the left / rows above */
out_end = min_t(unsigned int, out_edge, index * 1024 + 1);
/*
* Limit input seam position to make sure that the downsized input tile
* to the right or bottom does not exceed 1024 pixels.
*/
in_start = max_t(int, index * in_align,
in_edge - (1024 << downsize_coeff));
in_end = min_t(unsigned int, in_edge,
index * (1024 << downsize_coeff) + 1);
/*
* Output tiles must start at a multiple of 8 bytes horizontally and
@ -492,6 +526,7 @@ static void find_best_seam(struct ipu_image_convert_ctx *ctx,
for (out_pos = out_start; out_pos < out_end; out_pos += out_align) {
unsigned int in_pos;
unsigned int in_pos_aligned;
unsigned int in_pos_rounded;
unsigned int abs_diff;
/*
@ -512,9 +547,16 @@ static void find_best_seam(struct ipu_image_convert_ctx *ctx,
* start the input tile at, 19.13 fixed point.
*/
in_pos_aligned = round_closest(in_pos, 8192U * in_align);
/* Convert 19.13 fixed point to integer */
in_pos_rounded = in_pos_aligned / 8192U;
if (in_pos_rounded < in_start)
continue;
if (in_pos_rounded >= in_end)
break;
if ((in_burst > 1) &&
(in_edge - in_pos_aligned / 8192U) % in_burst)
(in_edge - in_pos_rounded) % in_burst)
continue;
if (in_pos < in_pos_aligned)
@ -523,19 +565,18 @@ static void find_best_seam(struct ipu_image_convert_ctx *ctx,
abs_diff = in_pos - in_pos_aligned;
if (abs_diff < min_diff) {
in_seam = in_pos_aligned;
in_seam = in_pos_rounded;
out_seam = out_pos;
min_diff = abs_diff;
}
}
*_out_seam = out_seam;
/* Convert 19.13 fixed point to integer seam position */
*_in_seam = DIV_ROUND_CLOSEST(in_seam, 8192U);
*_in_seam = in_seam;
dev_dbg(dev, "%s: out_seam %u(%u) in [%u, %u], in_seam %u(%u) diff %u.%03u\n",
dev_dbg(dev, "%s: out_seam %u(%u) in [%u, %u], in_seam %u(%u) in [%u, %u] diff %u.%03u\n",
__func__, out_seam, out_align, out_start, out_end,
*_in_seam, in_align, min_diff / 8192,
in_seam, in_align, in_start, in_end, min_diff / 8192,
DIV_ROUND_CLOSEST(min_diff % 8192 * 1000, 8192));
}
@ -712,8 +753,6 @@ static void find_seams(struct ipu_image_convert_ctx *ctx,
!(ctx->rot_mode & IPU_ROT_BIT_HFLIP);
bool allow_out_overshoot = (col < in->num_cols - 1) &&
!(ctx->rot_mode & IPU_ROT_BIT_HFLIP);
unsigned int out_start;
unsigned int out_end;
unsigned int in_left;
unsigned int out_left;
@ -722,12 +761,7 @@ static void find_seams(struct ipu_image_convert_ctx *ctx,
* horizontally.
*/
/* Start within 1024 pixels of the right edge */
out_start = max_t(int, 0, out_right - 1024);
/* End before having to add more columns to the left */
out_end = min_t(unsigned int, out_right, col * 1024);
find_best_seam(ctx, out_start, out_end,
find_best_seam(ctx, col,
in_right, out_right,
in_left_align, out_left_align,
allow_in_overshoot ? 1 : 8 /* burst length */,
@ -762,17 +796,10 @@ static void find_seams(struct ipu_image_convert_ctx *ctx,
for (row = in->num_rows - 1; row > 0; row--) {
bool allow_overshoot = row < in->num_rows - 1;
unsigned int out_start;
unsigned int out_end;
unsigned int in_top;
unsigned int out_top;
/* Start within 1024 lines of the bottom edge */
out_start = max_t(int, 0, out_bottom - 1024);
/* End before having to add more rows above */
out_end = min_t(unsigned int, out_bottom, row * 1024);
find_best_seam(ctx, out_start, out_end,
find_best_seam(ctx, row,
in_bottom, out_bottom,
in_top_align, out_top_align,
1, allow_overshoot ? 1 : out_height_align,
@ -809,13 +836,21 @@ static void find_seams(struct ipu_image_convert_ctx *ctx,
in_bottom, flipped_out_top, out_bottom);
}
static void calc_tile_dimensions(struct ipu_image_convert_ctx *ctx,
struct ipu_image_convert_image *image)
static int calc_tile_dimensions(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;
unsigned int max_width = 1024;
unsigned int max_height = 1024;
unsigned int i;
if (image->type == IMAGE_CONVERT_IN) {
/* Up to 4096x4096 input tile size */
max_width <<= ctx->downsize_coeff_h;
max_height <<= ctx->downsize_coeff_v;
}
for (i = 0; i < ctx->num_tiles; i++) {
struct ipu_image_tile *tile;
const unsigned int row = i / image->num_cols;
@ -845,7 +880,17 @@ static void calc_tile_dimensions(struct ipu_image_convert_ctx *ctx,
image->type == IMAGE_CONVERT_IN ? "Input" : "Output",
row, col,
tile->width, tile->height, tile->left, tile->top);
if (!tile->width || tile->width > max_width ||
!tile->height || tile->height > max_height) {
dev_err(priv->ipu->dev, "invalid %s tile size: %ux%u\n",
image->type == IMAGE_CONVERT_IN ? "input" :
"output", tile->width, tile->height);
return -EINVAL;
}
}
return 0;
}
/*
@ -1076,6 +1121,7 @@ static void calc_tile_resize_coefficients(struct ipu_image_convert_ctx *ctx)
!(ctx->rot_mode & IPU_ROT_BIT_HFLIP);
u32 resized_width;
u32 resize_coeff_h;
u32 in_width;
tile_idx = col;
in_tile = &ctx->in.tile[tile_idx];
@ -1093,33 +1139,35 @@ static void calc_tile_resize_coefficients(struct ipu_image_convert_ctx *ctx)
dev_dbg(priv->ipu->dev, "%s: column %u hscale: *8192/%u\n",
__func__, col, resize_coeff_h);
/*
* With the horizontal scaling factor known, round up resized
* width (output width or height) to burst size.
*/
resized_width = round_up(resized_width, 8);
/*
* Calculate input width from the last accessed input pixel
* given resized width and scaling coefficients. Round up to
* burst size.
*/
last_output = resized_width - 1;
if (closest && ((last_output * resize_coeff_h) % 8192))
last_output++;
in_width = round_up(
(DIV_ROUND_UP(last_output * resize_coeff_h, 8192) + 1)
<< ctx->downsize_coeff_h, 8);
for (row = 0; row < ctx->in.num_rows; row++) {
tile_idx = row * ctx->in.num_cols + col;
in_tile = &ctx->in.tile[tile_idx];
out_tile = &ctx->out.tile[ctx->out_tile_map[tile_idx]];
/*
* With the horizontal scaling factor known, round up
* resized width (output width or height) to burst size.
*/
if (ipu_rot_mode_is_irt(ctx->rot_mode))
out_tile->height = round_up(resized_width, 8);
out_tile->height = resized_width;
else
out_tile->width = round_up(resized_width, 8);
out_tile->width = resized_width;
/*
* Calculate input width from the last accessed input
* pixel given resized width and scaling coefficients.
* Round up to burst size.
*/
last_output = round_up(resized_width, 8) - 1;
if (closest)
last_output++;
in_tile->width = round_up(
(DIV_ROUND_UP(last_output * resize_coeff_h,
8192) + 1)
<< ctx->downsize_coeff_h, 8);
in_tile->width = in_width;
}
ctx->resize_coeffs_h[col] = resize_coeff_h;
@ -1130,6 +1178,7 @@ static void calc_tile_resize_coefficients(struct ipu_image_convert_ctx *ctx)
!(ctx->rot_mode & IPU_ROT_BIT_VFLIP);
u32 resized_height;
u32 resize_coeff_v;
u32 in_height;
tile_idx = row * ctx->in.num_cols;
in_tile = &ctx->in.tile[tile_idx];
@ -1147,33 +1196,35 @@ static void calc_tile_resize_coefficients(struct ipu_image_convert_ctx *ctx)
dev_dbg(priv->ipu->dev, "%s: row %u vscale: *8192/%u\n",
__func__, row, resize_coeff_v);
/*
* With the vertical scaling factor known, round up resized
* height (output width or height) to IDMAC limitations.
*/
resized_height = round_up(resized_height, 2);
/*
* Calculate input width from the last accessed input pixel
* given resized height and scaling coefficients. Align to
* IDMAC restrictions.
*/
last_output = resized_height - 1;
if (closest && ((last_output * resize_coeff_v) % 8192))
last_output++;
in_height = round_up(
(DIV_ROUND_UP(last_output * resize_coeff_v, 8192) + 1)
<< ctx->downsize_coeff_v, 2);
for (col = 0; col < ctx->in.num_cols; col++) {
tile_idx = row * ctx->in.num_cols + col;
in_tile = &ctx->in.tile[tile_idx];
out_tile = &ctx->out.tile[ctx->out_tile_map[tile_idx]];
/*
* With the vertical scaling factor known, round up
* resized height (output width or height) to IDMAC
* limitations.
*/
if (ipu_rot_mode_is_irt(ctx->rot_mode))
out_tile->width = round_up(resized_height, 2);
out_tile->width = resized_height;
else
out_tile->height = round_up(resized_height, 2);
out_tile->height = resized_height;
/*
* Calculate input width from the last accessed input
* pixel given resized height and scaling coefficients.
* Align to IDMAC restrictions.
*/
last_output = round_up(resized_height, 2) - 1;
if (closest)
last_output++;
in_tile->height = round_up(
(DIV_ROUND_UP(last_output * resize_coeff_v,
8192) + 1)
<< ctx->downsize_coeff_v, 2);
in_tile->height = in_height;
}
ctx->resize_coeffs_v[row] = resize_coeff_v;
@ -2024,22 +2075,26 @@ ipu_image_convert_prepare(struct ipu_soc *ipu, enum ipu_ic_task ic_task,
ctx->chan = chan;
init_completion(&ctx->aborted);
ctx->rot_mode = rot_mode;
/* Sets ctx->in.num_rows/cols as well */
ret = calc_image_resize_coefficients(ctx, in, out);
if (ret)
goto out_free;
s_image = &ctx->in;
d_image = &ctx->out;
/* set tiling and rotation */
d_image->num_rows = num_stripes(out->pix.height);
d_image->num_cols = num_stripes(out->pix.width);
if (ipu_rot_mode_is_irt(rot_mode)) {
s_image->num_rows = d_image->num_cols;
s_image->num_cols = d_image->num_rows;
d_image->num_rows = s_image->num_cols;
d_image->num_cols = s_image->num_rows;
} else {
s_image->num_rows = d_image->num_rows;
s_image->num_cols = d_image->num_cols;
d_image->num_rows = s_image->num_rows;
d_image->num_cols = s_image->num_cols;
}
ctx->num_tiles = d_image->num_cols * d_image->num_rows;
ctx->rot_mode = rot_mode;
ret = fill_image(ctx, s_image, in, IMAGE_CONVERT_IN);
if (ret)
@ -2048,15 +2103,14 @@ ipu_image_convert_prepare(struct ipu_soc *ipu, enum ipu_ic_task ic_task,
if (ret)
goto out_free;
ret = calc_image_resize_coefficients(ctx, in, out);
if (ret)
goto out_free;
calc_out_tile_map(ctx);
find_seams(ctx, s_image, d_image);
calc_tile_dimensions(ctx, s_image);
ret = calc_tile_dimensions(ctx, s_image);
if (ret)
goto out_free;
ret = calc_tile_offsets(ctx, s_image);
if (ret)
goto out_free;