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authorBrian Starkey <brian.starkey@arm.com>2016-10-11 15:26:05 +0100
committerLiviu Dudau <Liviu.Dudau@arm.com>2016-11-04 17:08:38 +0000
commita46a096a40c8533f94e781d376b798c1a5208cfd (patch)
tree6fcc7d50c9def569a85a103c3a707dc918eeaddc /drivers/gpu
parenta228062cb4e43e0f94bf48107338757d4d5857b9 (diff)
drm: mali-dp: Add pitch alignment check for planes
Check that the framebuffer pitches are appropriately aligned when checking planes. Signed-off-by: Brian Starkey <brian.starkey@arm.com> Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/arm/malidp_planes.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/gpu/drm/arm/malidp_planes.c b/drivers/gpu/drm/arm/malidp_planes.c
index abaca03b9d36..eaae81908de2 100644
--- a/drivers/gpu/drm/arm/malidp_planes.c
+++ b/drivers/gpu/drm/arm/malidp_planes.c
@@ -86,17 +86,30 @@ static int malidp_de_plane_check(struct drm_plane *plane,
{
struct malidp_plane *mp = to_malidp_plane(plane);
struct malidp_plane_state *ms = to_malidp_plane_state(state);
+ struct drm_framebuffer *fb;
+ int n_planes, i;
u8 format_id;
u32 src_w, src_h;
if (!state->crtc || !state->fb)
return 0;
+ fb = state->fb;
+
format_id = malidp_hw_get_format_id(&mp->hwdev->map, mp->layer->id,
- state->fb->pixel_format);
+ fb->pixel_format);
if (format_id == MALIDP_INVALID_FORMAT_ID)
return -EINVAL;
+ n_planes = drm_format_num_planes(fb->pixel_format);
+ for (i = 0; i < n_planes; i++) {
+ if (!malidp_hw_pitch_valid(mp->hwdev, fb->pitches[i])) {
+ DRM_DEBUG_KMS("Invalid pitch %u for plane %d\n",
+ fb->pitches[i], i);
+ return -EINVAL;
+ }
+ }
+
src_w = state->src_w >> 16;
src_h = state->src_h >> 16;