drm/msm/dpu: take plane rotation into account for wide planes

[ Upstream commit d3a785e4f983f523380e023d8a05fb6d04402957 ]

Take into account the plane rotation and flipping when calculating src
positions for the wide plane parts.

This is not an issue yet, because rotation is only supported for the
UBWC planes and wide UBWC planes are rejected anyway because in parallel
multirect case only the half of the usual width is supported for tiled
formats. However it's better to fix this now rather than stumbling upon
it later.

Fixes: 80e8ae3b38ab ("drm/msm/dpu: add support for wide planes")
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/601059/
Link: https://lore.kernel.org/r/20240627-dpu-virtual-wide-v5-3-5efb90cbb8be@linaro.org
Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
index cbdb9628d962d16955e0b28290bc8ae7c72aea90..c31d283d1c6c15e9c2462da2be76a01947c1a6b1 100644 (file)
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
@@ -865,6 +865,10 @@ static int dpu_plane_atomic_check(struct drm_plane *plane,
 
        max_linewidth = pdpu->catalog->caps->max_linewidth;
 
+       drm_rect_rotate(&pipe_cfg->src_rect,
+                       new_plane_state->fb->width, new_plane_state->fb->height,
+                       new_plane_state->rotation);
+
        if ((drm_rect_width(&pipe_cfg->src_rect) > max_linewidth) ||
             _dpu_plane_calc_clk(&crtc_state->adjusted_mode, pipe_cfg) > max_mdp_clk_rate) {
                /*
@@ -914,6 +918,14 @@ static int dpu_plane_atomic_check(struct drm_plane *plane,
                r_pipe_cfg->dst_rect.x1 = pipe_cfg->dst_rect.x2;
        }
 
+       drm_rect_rotate_inv(&pipe_cfg->src_rect,
+                           new_plane_state->fb->width, new_plane_state->fb->height,
+                           new_plane_state->rotation);
+       if (r_pipe->sspp)
+               drm_rect_rotate_inv(&r_pipe_cfg->src_rect,
+                                   new_plane_state->fb->width, new_plane_state->fb->height,
+                                   new_plane_state->rotation);
+
        ret = dpu_plane_atomic_check_pipe(pdpu, pipe, pipe_cfg, fmt, &crtc_state->adjusted_mode);
        if (ret)
                return ret;