[PATCH] drm/amd/display: fix cursor offset on rotation 180

[Harry Wentland]

On 1/31/23 11:05, Melissa Wen wrote:
> Cursor gets clipped off in the middle of the screen with hw rotation
> 180. Fix a miscalculation of cursor offset when it's placed near the
> edges in the pipe split case.
> 
> Cursor bugs with hw rotation were reported on AMD issue tracker:
> https://gitlab.freedesktop.org/drm/amd/-/issues/2247
> 
> The issues on rotation 270 was fixed by:
> https://lore.kernel.org/amd-gfx/20221118125935.4013669-22-Brian.Chang@amd.com/
> that partially addressed the rotation 180 too. So, this patch is the
> final bits for rotation 180.
> 
> Reported-by: Xaver Hugl <xaver.hugl at gmail.com>
> Fixes: 9d84c7ef8a87 ("drm/amd/display: Correct cursor position on horizontal mirror")
> Signed-off-by: Melissa Wen <mwen at igalia.com>

Reviewed-by: Harry Wentland <harry.wentland at amd.com>

Harry

> ---
>  drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
> index bb155734ac93..480c0b3b51fc 100644
> --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
> +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
> @@ -3624,7 +3624,7 @@ void dcn10_set_cursor_position(struct pipe_ctx *pipe_ctx)
>  						(int)hubp->curs_attr.width || pos_cpy.x
>  						<= (int)hubp->curs_attr.width +
>  						pipe_ctx->plane_state->src_rect.x) {
> -						pos_cpy.x = temp_x + viewport_width;
> +						pos_cpy.x = 2 * viewport_width - temp_x;
>  					}
>  				}
>  			} else {