On Wed, Dec 2, 2020 at 4:33 PM Kazlauskas, Nicholas
<[email protected]> wrote:
>
> On 2020-12-02 4:09 p.m., Simon Ser wrote:
> > Replace the width check with a pitch check, which matches DM internals.
> > Add a new check to make sure the pitch (in pixels) matches the width.
> >
> > Signed-off-by: Simon Ser <[email protected]>
> > Cc: Alex Deucher <[email protected]>
> > Cc: Harry Wentland <[email protected]>
> > Cc: Nicholas Kazlauskas <[email protected]>
>
> Series is:
>
> Reviewed-by: Nicholas Kazlauskas <[email protected]>
Applied. Thanks!
Alex
>
> Regards,
> Nicholas Kazlauskas
>
> > ---
> > .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 19 +++++++++++++++----
> > 1 file changed, 15 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> > b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> > index 9e328101187e..862a59703060 100644
> > --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> > +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> > @@ -8988,6 +8988,7 @@ static int dm_update_plane_state(struct dc *dc,
> > struct amdgpu_crtc *new_acrtc;
> > bool needs_reset;
> > int ret = 0;
> > + unsigned int pitch;
> >
> >
> > new_plane_crtc = new_plane_state->crtc;
> > @@ -9021,15 +9022,25 @@ static int dm_update_plane_state(struct dc *dc,
> > return -EINVAL;
> > }
> >
> > - switch (new_plane_state->fb->width) {
> > + /* Pitch in pixels */
> > + pitch = new_plane_state->fb->pitches[0] /
> > new_plane_state->fb->format->cpp[0];
> > +
> > + if (new_plane_state->fb->width != pitch) {
> > + DRM_DEBUG_ATOMIC("Cursor FB width %d doesn't
> > match pitch %d",
> > + new_plane_state->fb->width,
> > + pitch);
> > + return -EINVAL;
> > + }
> > +
> > + switch (pitch) {
> > case 64:
> > case 128:
> > case 256:
> > - /* FB width is supported by cursor plane */
> > + /* FB pitch is supported by cursor plane */
> > break;
> > default:
> > - DRM_DEBUG_ATOMIC("Bad cursor FB width %d\n",
> > - new_plane_state->fb->width);
> > + DRM_DEBUG_ATOMIC("Bad cursor FB pitch %d
> > px\n",
> > + pitch);
> > return -EINVAL;
> > }
> > }
> >
>
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