On Mon, Jan 11, 2021 at 4:02 PM Alex Deucher alexdeucher@gmail.com wrote:
On Sat, Jan 9, 2021 at 9:11 PM Bas Nieuwenhuizen bas@basnieuwenhuizen.nl wrote:
With modifiers one can actually have different format_info structs for the same format, which now matters for AMDGPU since we convert implicit modifiers to explicit modifiers with multiple planes.
I checked other drivers and it doesn't look like they end up triggering this case so I think this is safe to relax.
Signed-off-by: Bas Nieuwenhuizen bas@basnieuwenhuizen.nl Reviewed-by: Daniel Vetter daniel.vetter@ffwll.ch Reviewed-by: Zhan Liu zhan.liu@amd.com Acked-by: Christian König christian.koenig@amd.com Acked-by: Alex Deucher alexander.deucher@amd.com Fixes: 816853f9dc40 ("drm/amd/display: Set new format info for converted metadata.")
Do you have commit rights to drm-misc or do you need someone to commit this for you?
I don't have commit rights so if the patch could be committed for me that would be appreciated!
Thanks!
Alex
drivers/gpu/drm/drm_plane.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c index e6231947f987..a0cb746bcb0a 100644 --- a/drivers/gpu/drm/drm_plane.c +++ b/drivers/gpu/drm/drm_plane.c @@ -1163,7 +1163,14 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev, if (ret) goto out;
if (old_fb->format != fb->format) {
/** Only check the FOURCC format code, excluding modifiers. This is* enough for all legacy drivers. Atomic drivers have their own* checks in their ->atomic_check implementation, which will* return -EINVAL if any hw or driver constraint is violated due* to modifier changes.*/if (old_fb->format->format != fb->format->format) { DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); ret = -EINVAL; goto out;-- 2.29.2
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