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| author | Ayan Kumar Halder <ayan.halder@arm.com> | 2018-11-19 17:14:06 +0300 |
|---|---|---|
| committer | Ayan kumar halder <ayan.halder@arm.com> | 2019-03-12 21:25:09 +0300 |
| commit | 7834c5770284db6b53943c451a0d2efe69cabd7c (patch) | |
| tree | dc69c412751fbd2e2430f14c63e21d9dd472ed2a /drivers/gpu/drm/arm | |
| parent | da77365870b4b20335645ec1332d1de4202e14b3 (diff) | |
| download | linux-7834c5770284db6b53943c451a0d2efe69cabd7c.tar.xz | |
drm/arm/malidp:- Use the newly introduced malidp_format_get_bpp() instead of relying on cpp for calculating framebuffer size
Formats like DRM_FORMAT_VUY101010, DRM_FORMAT_YUV420_8BIT and
DRM_FORMAT_YUV420_10BIT are expressed in bits per pixel as they have a non
integer value of cpp (thus denoted as '0' in drm_format_info[]). Therefore,
the calculation of AFBC framebuffer size needs to use malidp_format_get_bpp().
Changes since v3 (series):
- Added the ack
- Rebased on the latest drm-misc-next
Signed-off-by: Ayan Kumar halder <ayan.halder@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Acked-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Link: https://patchwork.freedesktop.org/patch/291766/?series=57895&rev=1
Diffstat (limited to 'drivers/gpu/drm/arm')
| -rw-r--r-- | drivers/gpu/drm/arm/malidp_drv.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c index c697664bc5d7..4106f5d393b6 100644 --- a/drivers/gpu/drm/arm/malidp_drv.c +++ b/drivers/gpu/drm/arm/malidp_drv.c @@ -298,6 +298,7 @@ malidp_verify_afbc_framebuffer_size(struct drm_device *dev, struct drm_gem_object *objs = NULL; u32 afbc_superblock_size = 0, afbc_superblock_height = 0; u32 afbc_superblock_width = 0, afbc_size = 0; + int bpp = 0; switch (mode_cmd->modifier[0] & AFBC_SIZE_MASK) { case AFBC_SIZE_16X16: @@ -314,15 +315,19 @@ malidp_verify_afbc_framebuffer_size(struct drm_device *dev, n_superblocks = (mode_cmd->width / afbc_superblock_width) * (mode_cmd->height / afbc_superblock_height); - afbc_superblock_size = info->cpp[0] * afbc_superblock_width * - afbc_superblock_height; + bpp = malidp_format_get_bpp(info->format); + + afbc_superblock_size = (bpp * afbc_superblock_width * afbc_superblock_height) + / BITS_PER_BYTE; afbc_size = ALIGN(n_superblocks * AFBC_HEADER_SIZE, AFBC_SUPERBLK_ALIGNMENT); afbc_size += n_superblocks * ALIGN(afbc_superblock_size, AFBC_SUPERBLK_ALIGNMENT); - if (mode_cmd->width * info->cpp[0] != mode_cmd->pitches[0]) { - DRM_DEBUG_KMS("Invalid value of pitch (=%u) should be same as width (=%u) * cpp (=%u)\n", - mode_cmd->pitches[0], mode_cmd->width, info->cpp[0]); + if ((mode_cmd->width * bpp) != (mode_cmd->pitches[0] * BITS_PER_BYTE)) { + DRM_DEBUG_KMS("Invalid value of (pitch * BITS_PER_BYTE) (=%u) " + "should be same as width (=%u) * bpp (=%u)\n", + (mode_cmd->pitches[0] * BITS_PER_BYTE), + mode_cmd->width, bpp); return false; } |