drm/msm: dpu: Move atomic_check_plane_state() call to atomic_check

src/dst rects are checked in both atomic_check and atomic_update, with
the more comprehensive check occurring in atomic_update, which is
backwards. So consolodate the checks in atomic_check.

Changes in v2:
- Use the correct crtc state (Jeykumar)

Cc: Jeykumar Sankaran <jsanka@codeaurora.org>
Reviewed-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
index 2c63c26..244b47f 100644 (file)
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
@@ -1081,13 +1081,27 @@ static bool dpu_plane_validate_src(struct drm_rect *src,
 static int dpu_plane_sspp_atomic_check(struct drm_plane *plane,
                struct drm_plane_state *state)
 {
-       int ret = 0;
+       int ret = 0, min_scale;
        struct dpu_plane *pdpu = to_dpu_plane(plane);
+       const struct drm_crtc_state *crtc_state = NULL;
        const struct dpu_format *fmt;
        struct drm_rect src, dst, fb_rect = { 0 };
-       uint32_t max_upscale = 1, max_downscale = 1;
        uint32_t min_src_size, max_linewidth;
-       int hscale = 1, vscale = 1;
+
+       if (state->crtc)
+               crtc_state = drm_atomic_get_new_crtc_state(state->state,
+                                                          state->crtc);
+
+       min_scale = FRAC_16_16(1, pdpu->pipe_sblk->maxdwnscale);
+       ret = drm_atomic_helper_check_plane_state(state, crtc_state, min_scale,
+                                         pdpu->pipe_sblk->maxupscale << 16,
+                                         true, true);
+       if (ret) {
+               DPU_ERROR_PLANE(pdpu, "Check plane state failed (%d)\n", ret);
+               return ret;
+       }
+       if (!state->visible)
+               return 0;
 
        src.x1 = state->src_x >> 16;
        src.y1 = state->src_y >> 16;
@@ -1101,25 +1115,6 @@ static int dpu_plane_sspp_atomic_check(struct drm_plane *plane,
 
        max_linewidth = pdpu->pipe_sblk->common->maxlinewidth;
 
-       if (pdpu->features & DPU_SSPP_SCALER) {
-               max_downscale = pdpu->pipe_sblk->maxdwnscale;
-               max_upscale = pdpu->pipe_sblk->maxupscale;
-       }
-       if (drm_rect_width(&src) < drm_rect_width(&dst))
-               hscale = drm_rect_calc_hscale(&src, &dst, 1, max_upscale);
-       else
-               hscale = drm_rect_calc_hscale(&dst, &src, 1, max_downscale);
-       if (drm_rect_height(&src) < drm_rect_height(&dst))
-               vscale = drm_rect_calc_vscale(&src, &dst, 1, max_upscale);
-       else
-               vscale = drm_rect_calc_vscale(&dst, &src, 1, max_downscale);
-
-       DPU_DEBUG_PLANE(pdpu, "check %d -> %d\n",
-               dpu_plane_enabled(plane->state), dpu_plane_enabled(state));
-
-       if (!dpu_plane_enabled(state))
-               goto exit;
-
        fmt = to_dpu_format(msm_framebuffer_format(state->fb));
 
        min_src_size = DPU_FORMAT_IS_YUV(fmt) ? 2 : 1;
@@ -1158,16 +1153,8 @@ static int dpu_plane_sspp_atomic_check(struct drm_plane *plane,
                DPU_ERROR_PLANE(pdpu, "invalid src " DRM_RECT_FMT " line:%u\n",
                                DRM_RECT_ARG(&src), max_linewidth);
                ret = -E2BIG;
-
-       /* check scaler capability */
-       } else if (hscale < 0 || vscale < 0) {
-               DPU_ERROR_PLANE(pdpu, "invalid scaling requested src="
-                               DRM_RECT_FMT " dst=" DRM_RECT_FMT "\n",
-                               DRM_RECT_ARG(&src), DRM_RECT_ARG(&dst));
-               ret = -E2BIG;
        }
 
-exit:
        return ret;
 }
 
@@ -1239,7 +1226,6 @@ static int dpu_plane_sspp_atomic_update(struct drm_plane *plane,
        const struct dpu_format *fmt;
        struct drm_crtc *crtc;
        struct drm_framebuffer *fb;
-       int ret, min_scale;
 
        if (!plane) {
                DPU_ERROR("invalid plane\n");
@@ -1278,15 +1264,6 @@ static int dpu_plane_sspp_atomic_update(struct drm_plane *plane,
        pdpu->is_rt_pipe = (dpu_crtc_get_client_type(crtc) != NRT_CLIENT);
        _dpu_plane_set_qos_ctrl(plane, false, DPU_PLANE_QOS_PANIC_CTRL);
 
-       min_scale = FRAC_16_16(1, pdpu->pipe_sblk->maxdwnscale);
-       ret = drm_atomic_helper_check_plane_state(state, crtc->state, min_scale,
-                                         pdpu->pipe_sblk->maxupscale << 16,
-                                         true, false);
-       if (ret) {
-               DPU_ERROR_PLANE(pdpu, "Check plane state failed (%d)\n", ret);
-               return ret;
-       }
-
        DPU_DEBUG_PLANE(pdpu, "FB[%u] " DRM_RECT_FP_FMT "->crtc%u " DRM_RECT_FMT
                        ", %4.4s ubwc %d\n", fb->base.id, DRM_RECT_FP_ARG(&state->src),
                        crtc->base.id, DRM_RECT_ARG(&state->dst),