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drm/amd/display: disallow cropping for cursor plane 

Looking at handle_cursor_update, it doesn't seem like src_{x,y,w,h}
are picked up by DC. I also tried to change these parameters via a
test KMS client, and amdgpu ignored them. Instead of displaying the
wrong result, reject the atomic commit.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Simon Ser <contact@emersion.fr>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Harry Wentland <hwentlan@amd.com>
Cc: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Simon Ser 2020-11-20 20:18:57 +00:00 committed by Alex Deucher
parent 24f99d2b21
commit 5f58124815
1 changed files with 10 additions and 0 deletions
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10
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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@ -8982,6 +8982,11 @@ static int dm_update_plane_state(struct dc *dc,
return -EINVAL;
}
if (new_plane_state->src_x != 0 || new_plane_state->src_y != 0) {
DRM_DEBUG_ATOMIC("Cropping not supported for cursor plane\n");
return -EINVAL;
}
if (new_plane_state->fb) {
if (new_plane_state->fb->width > new_acrtc->max_cursor_width ||
new_plane_state->fb->height > new_acrtc->max_cursor_height) {
@ -8990,6 +8995,11 @@ static int dm_update_plane_state(struct dc *dc,
new_plane_state->fb->height);
return -EINVAL;
}
if (new_plane_state->src_w != new_plane_state->fb->width << 16 ||
new_plane_state->src_h != new_plane_state->fb->height << 16) {
DRM_DEBUG_ATOMIC("Cropping not supported for cursor plane\n");
return -EINVAL;
}
switch (new_plane_state->fb->width) {
case 64: