diff options
Diffstat (limited to 'drivers/gpu/drm/drm_framebuffer.c')
| -rw-r--r-- | drivers/gpu/drm/drm_framebuffer.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c index 3bf729d0aae5..fcaea8f50513 100644 --- a/drivers/gpu/drm/drm_framebuffer.c +++ b/drivers/gpu/drm/drm_framebuffer.c @@ -195,20 +195,26 @@ static int framebuffer_check(struct drm_device *dev, for (i = 0; i < info->num_planes; i++) { unsigned int width = fb_plane_width(r->width, info, i); unsigned int height = fb_plane_height(r->height, info, i); - unsigned int cpp = info->cpp[i]; + unsigned int block_size = info->char_per_block[i]; + u64 min_pitch = drm_format_info_min_pitch(info, i, width); + + if (!block_size && (r->modifier[i] == DRM_FORMAT_MOD_LINEAR)) { + DRM_DEBUG_KMS("Format requires non-linear modifier for plane %d\n", i); + return -EINVAL; + } if (!r->handles[i]) { DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); return -EINVAL; } - if ((uint64_t) width * cpp > UINT_MAX) + if (min_pitch > UINT_MAX) return -ERANGE; if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) return -ERANGE; - if (r->pitches[i] < width * cpp) { + if (block_size && r->pitches[i] < min_pitch) { DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); return -EINVAL; } @@ -317,6 +323,7 @@ drm_internal_framebuffer_create(struct drm_device *dev, return fb; } +EXPORT_SYMBOL_FOR_TESTS_ONLY(drm_internal_framebuffer_create); /** * drm_mode_addfb2 - add an FB to the graphics configuration |