From: Melissa Wen mwen@igalia.com

[why & how] 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.co... that partially addressed the rotation 180 too. So, this patch is the final bits for rotation 180.

Reported-by: Xaver Hugl xaver.hugl@gmail.com Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2247 Reviewed-by: Harry Wentland harry.wentland@amd.com Fixes: 9d84c7ef8a87 ("drm/amd/display: Correct cursor position on horizontal mirror") Signed-off-by: Melissa Wen mwen@igalia.com Signed-off-by: Hamza Mahfooz hamza.mahfooz@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Tom Chung chiahsuan.chung@amd.com Cc: stable@vger.kernel.org --- drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c index a7b5b25e3f34..802902f54d09 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn10/dcn10_hwseq.c @@ -3594,7 +3594,7 @@ 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 {