The content of every half of screen is sent out via one interface in
dual-DSI case. The content for every interface is blended by a LM
pair in quad-pipe case, thus a LM pair should not blend any content
that cross the half of screen in this case. Clip plane into pipes per
left and right half screen ROI if topology is quad pipe case.
The clipped rectangle on every half of screen will be split further
by half if its width still exceeds limit.
Signed-off-by: Jun Nie <jun.nie@xxxxxxxxxx>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 11 +++
drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h | 2 +
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h | 2 +
drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 138 +++++++++++++++++++---------
4 files changed, 112 insertions(+), 41 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index 5ae640da53fbf..a900220deeb35 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -1361,6 +1361,17 @@ int dpu_crtc_vblank(struct drm_crtc *crtc, bool en)
return 0;
}
+/**
+ * dpu_crtc_get_num_lm - Get mixer number in this CRTC pipeline
+ * @state: Pointer to drm crtc state object
+ */
+unsigned int dpu_crtc_get_num_lm(const struct drm_crtc_state *state)
+{
+ struct dpu_crtc_state *cstate = to_dpu_crtc_state(state);
+
+ return cstate->num_mixers;
+}
+
#ifdef CONFIG_DEBUG_FS
static int _dpu_debugfs_status_show(struct seq_file *s, void *data)
{
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
index 0b148f3ce0d7a..b14bab2754635 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
@@ -264,4 +264,6 @@ static inline enum dpu_crtc_client_type dpu_crtc_get_client_type(
void dpu_crtc_frame_event_cb(struct drm_crtc *crtc, u32 event);
+unsigned int dpu_crtc_get_num_lm(const struct drm_crtc_state *state);
+
#endif /* _DPU_CRTC_H_ */
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h
index 56a0edf2a57c6..39fe338e76691 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h
@@ -145,11 +145,13 @@ struct dpu_hw_pixel_ext {
* such as decimation, flip etc to program this field
* @dest_rect: destination ROI.
* @rotation: simplified drm rotation hint
+ * @valid: notify that this pipe and config is in use
*/
struct dpu_sw_pipe_cfg {
struct drm_rect src_rect;
struct drm_rect dst_rect;
unsigned int rotation;
+ bool valid;
};
/**
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
index 3795576e2eedd..4bcd7b1a05c16 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
@@ -831,8 +831,12 @@ static int dpu_plane_atomic_check_nosspp(struct drm_plane *plane,
struct dpu_plane_state *pstate = to_dpu_plane_state(new_plane_state);
struct dpu_sw_pipe_cfg *pipe_cfg;
struct dpu_sw_pipe_cfg *r_pipe_cfg;
+ struct dpu_sw_pipe_cfg init_pipe_cfg;
struct drm_rect fb_rect = { 0 };
+ const struct drm_display_mode *mode = &crtc_state->adjusted_mode;
uint32_t max_linewidth;
+ u32 num_lm;
+ int stage_id, num_stages;
min_scale = FRAC_16_16(1, MAX_UPSCALE_RATIO);
max_scale = MAX_DOWNSCALE_RATIO << 16;
@@ -855,13 +859,10 @@ static int dpu_plane_atomic_check_nosspp(struct drm_plane *plane,
return -EINVAL;
}
- /* move the assignment here, to ease handling to another pairs later */
- pipe_cfg = &pstate->pipe_cfg[0];
- r_pipe_cfg = &pstate->pipe_cfg[1];
- /* state->src is 16.16, src_rect is not */
- drm_rect_fp_to_int(&pipe_cfg->src_rect, &new_plane_state->src);
+ num_lm = dpu_crtc_get_num_lm(crtc_state);
- pipe_cfg->dst_rect = new_plane_state->dst;
+ /* state->src is 16.16, src_rect is not */
+ drm_rect_fp_to_int(&init_pipe_cfg.src_rect, &new_plane_state->src);
fb_rect.x2 = new_plane_state->fb->width;
fb_rect.y2 = new_plane_state->fb->height;
@@ -886,35 +887,93 @@ static int dpu_plane_atomic_check_nosspp(struct drm_plane *plane,
max_linewidth = pdpu->catalog->caps->max_linewidth;
- drm_rect_rotate(&pipe_cfg->src_rect,
+ drm_rect_rotate(&init_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) {
- if (drm_rect_width(&pipe_cfg->src_rect) > 2 * max_linewidth) {
- DPU_DEBUG_PLANE(pdpu, "invalid src " DRM_RECT_FMT " line:%u\n",
- DRM_RECT_ARG(&pipe_cfg->src_rect), max_linewidth);
- return -E2BIG;
+ /*
+ * We have 1 mixer pair cfg for 1:1:1 and 2:2:1 topology, 2 mixer pair
+ * configs for left and right half screen in case of 4:4:2 topology.
+ * But we may have 2 rect to split wide plane that exceeds limit with 1
+ * config for 2:2:1. So need to handle both wide plane splitting, and
+ * plane on right half for quad-pipe case. Check dest rectangle
+ * left/right clipping first, then check wide rectangle splitting in
+ * every half next.
+ */
+ num_stages = (num_lm + 1) / 2;
+ /* iterate mixer configs for this plane, to separate left/right with the id */
+ for (stage_id = 0; stage_id < num_stages; stage_id++) {
+ struct drm_rect mixer_rect = {stage_id * mode->hdisplay / num_stages, 0,
+ (stage_id + 1) * mode->hdisplay / num_stages,
+ mode->vdisplay};
+ int cfg_idx = stage_id * PIPES_PER_STAGE;
+
+ pipe_cfg = &pstate->pipe_cfg[cfg_idx];
+ r_pipe_cfg = &pstate->pipe_cfg[cfg_idx + 1];
+
+ drm_rect_fp_to_int(&pipe_cfg->src_rect, &new_plane_state->src);
+ pipe_cfg->dst_rect = new_plane_state->dst;
+
+ DPU_DEBUG_PLANE(pdpu, "checking src " DRM_RECT_FMT
+ " vs clip window " DRM_RECT_FMT "\n",
+ DRM_RECT_ARG(&pipe_cfg->src_rect),
+ DRM_RECT_ARG(&mixer_rect));
+
+ /*
+ * If this plane does not fall into mixer rect, check next
+ * mixer rect.
+ */
+ if (!drm_rect_clip_scaled(&pipe_cfg->src_rect,
+ &pipe_cfg->dst_rect,
+ &mixer_rect)) {
+ pipe_cfg->valid = false;
+ r_pipe_cfg->valid = false;
+ continue;
}
- *r_pipe_cfg = *pipe_cfg;
- pipe_cfg->src_rect.x2 = (pipe_cfg->src_rect.x1 + pipe_cfg->src_rect.x2) >> 1;
- pipe_cfg->dst_rect.x2 = (pipe_cfg->dst_rect.x1 + pipe_cfg->dst_rect.x2) >> 1;
- r_pipe_cfg->src_rect.x1 = pipe_cfg->src_rect.x2;
- r_pipe_cfg->dst_rect.x1 = pipe_cfg->dst_rect.x2;
- } else {
- memset(r_pipe_cfg, 0, sizeof(*r_pipe_cfg));
- }
+ pipe_cfg->valid = true;
+ pipe_cfg->dst_rect.x1 -= mixer_rect.x1;
+ pipe_cfg->dst_rect.x2 -= mixer_rect.x1;
+
+ DPU_DEBUG_PLANE(pdpu, "Got clip src:" DRM_RECT_FMT " dst: " DRM_RECT_FMT "\n",
+ DRM_RECT_ARG(&pipe_cfg->src_rect), DRM_RECT_ARG(&pipe_cfg->dst_rect));
+
+ /* Split wide rect into 2 rect */
+ if ((drm_rect_width(&pipe_cfg->src_rect) > max_linewidth) ||
+ _dpu_plane_calc_clk(mode, pipe_cfg) > max_mdp_clk_rate) {
+
+ if (drm_rect_width(&pipe_cfg->src_rect) > 2 * max_linewidth) {
+ DPU_DEBUG_PLANE(pdpu, "invalid src " DRM_RECT_FMT " line:%u\n",
+ DRM_RECT_ARG(&pipe_cfg->src_rect), max_linewidth);
+ return -E2BIG;
+ }
+
+ memcpy(r_pipe_cfg, pipe_cfg, sizeof(struct dpu_sw_pipe_cfg));
+ pipe_cfg->src_rect.x2 = (pipe_cfg->src_rect.x1 + pipe_cfg->src_rect.x2) >> 1;
+ pipe_cfg->dst_rect.x2 = (pipe_cfg->dst_rect.x1 + pipe_cfg->dst_rect.x2) >> 1;
+ r_pipe_cfg->src_rect.x1 = pipe_cfg->src_rect.x2;
+ r_pipe_cfg->dst_rect.x1 = pipe_cfg->dst_rect.x2;
+ r_pipe_cfg->valid = true;
+ DPU_DEBUG_PLANE(pdpu, "Split wide plane into:"
+ DRM_RECT_FMT " and " DRM_RECT_FMT "\n",
+ DRM_RECT_ARG(&pipe_cfg->src_rect),
+ DRM_RECT_ARG(&r_pipe_cfg->src_rect));
+ } else {
+ r_pipe_cfg->valid = false;
+ }
- drm_rect_rotate_inv(&pipe_cfg->src_rect,
- new_plane_state->fb->width, new_plane_state->fb->height,
- new_plane_state->rotation);
- if (drm_rect_width(&r_pipe_cfg->src_rect) != 0)
- drm_rect_rotate_inv(&r_pipe_cfg->src_rect,
- new_plane_state->fb->width, new_plane_state->fb->height,
+ 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_cfg->valid)
+ drm_rect_rotate_inv(&r_pipe_cfg->src_rect,
+ new_plane_state->fb->width,
+ new_plane_state->fb->height,
+ new_plane_state->rotation);
+ }
+
pstate->needs_qos_remap = drm_atomic_crtc_needs_modeset(crtc_state);
return 0;
@@ -954,20 +1013,17 @@ static int dpu_plane_atomic_check_sspp(struct drm_plane *plane,
drm_atomic_get_new_plane_state(state, plane);
struct dpu_plane *pdpu = to_dpu_plane(plane);
struct dpu_plane_state *pstate = to_dpu_plane_state(new_plane_state);
- struct dpu_sw_pipe *pipe = &pstate->pipe[0];
- struct dpu_sw_pipe *r_pipe = &pstate->pipe[1];
- struct dpu_sw_pipe_cfg *pipe_cfg = &pstate->pipe_cfg[0];
- struct dpu_sw_pipe_cfg *r_pipe_cfg = &pstate->pipe_cfg[1];
- int ret = 0;
-
- ret = dpu_plane_atomic_check_pipe(pdpu, pipe, pipe_cfg,
- &crtc_state->adjusted_mode,
- new_plane_state);
- if (ret)
- return ret;
+ struct dpu_sw_pipe *pipe;
+ struct dpu_sw_pipe_cfg *pipe_cfg;
+ int ret = 0, i;
- if (drm_rect_width(&r_pipe_cfg->src_rect) != 0) {
- ret = dpu_plane_atomic_check_pipe(pdpu, r_pipe, r_pipe_cfg,
+ for (i = 0; i < PIPES_PER_PLANE; i++) {
+ pipe = &pstate->pipe[i];
+ pipe_cfg = &pstate->pipe_cfg[i];
+ if (!pipe_cfg->valid || !pipe->sspp)
+ continue;
+ DPU_DEBUG_PLANE(pdpu, "pipe %d is in use, validate it\n", i);
+ ret = dpu_plane_atomic_check_pipe(pdpu, pipe, pipe_cfg,
&crtc_state->adjusted_mode,
new_plane_state);
if (ret)
@@ -990,7 +1046,7 @@ static bool dpu_plane_try_multirect_parallel(struct dpu_sw_pipe *pipe, struct dp
r_pipe->multirect_index = DPU_SSPP_RECT_SOLO;
r_pipe->multirect_mode = DPU_SSPP_MULTIRECT_NONE;
- if (drm_rect_width(&r_pipe_cfg->src_rect) != 0) {
+ if (r_pipe_cfg->valid && drm_rect_width(&r_pipe_cfg->src_rect) != 0) {
if (!dpu_plane_is_multirect_parallel_capable(pipe->sspp, pipe_cfg, fmt, max_linewidth) ||
!dpu_plane_is_multirect_parallel_capable(pipe->sspp, r_pipe_cfg, fmt, max_linewidth))
return false;
--
2.34.1
