diff options
| author | Andrzej Pietrasiewicz <andrzej.p@samsung.com> | 2015-12-08 12:39:08 -0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2016-04-13 16:24:15 -0300 |
| commit | 77401dd7394c5d7b593718361ac6bb8f1aa4db62 (patch) | |
| tree | 8f33dd067bf5a4d94b37c1c64fe6ccfcea3f5144 /drivers/media | |
| parent | 5790a1589f746d5648825d3bc8367f0ce7b12784 (diff) | |
| download | op-kernel-dev-77401dd7394c5d7b593718361ac6bb8f1aa4db62.zip op-kernel-dev-77401dd7394c5d7b593718361ac6bb8f1aa4db62.tar.gz | |
[media] s5p-jpeg: Adjust buffer size for Exynos 4412
Eliminate iommu fault during encoding by adjusting image size
used for buffer size computation and ensuring that the buffer
is not overrun.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/platform/s5p-jpeg/jpeg-core.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/media/platform/s5p-jpeg/jpeg-core.c b/drivers/media/platform/s5p-jpeg/jpeg-core.c index c3b13a63..caa19b4 100644 --- a/drivers/media/platform/s5p-jpeg/jpeg-core.c +++ b/drivers/media/platform/s5p-jpeg/jpeg-core.c @@ -1548,8 +1548,10 @@ static int exynos4_jpeg_get_output_buffer_size(struct s5p_jpeg_ctx *ctx, struct v4l2_pix_format *pix = &f->fmt.pix; u32 pix_fmt = f->fmt.pix.pixelformat; int w = pix->width, h = pix->height, wh_align; + int padding = 0; if (pix_fmt == V4L2_PIX_FMT_RGB32 || + pix_fmt == V4L2_PIX_FMT_RGB565 || pix_fmt == V4L2_PIX_FMT_NV24 || pix_fmt == V4L2_PIX_FMT_NV42 || pix_fmt == V4L2_PIX_FMT_NV12 || @@ -1564,7 +1566,10 @@ static int exynos4_jpeg_get_output_buffer_size(struct s5p_jpeg_ctx *ctx, &h, S5P_JPEG_MIN_HEIGHT, S5P_JPEG_MAX_HEIGHT, wh_align); - return w * h * fmt_depth >> 3; + if (ctx->jpeg->variant->version == SJPEG_EXYNOS4) + padding = PAGE_SIZE; + + return (w * h * fmt_depth >> 3) + padding; } static int exynos3250_jpeg_try_downscale(struct s5p_jpeg_ctx *ctx, |
