Initialize and use the color_fill properties for planes in DPU driver. In
addition, relax framebuffer requirements within atomic commit path and
add checks for NULL framebuffers. Finally, drop DPU_PLANE_COLOR_FILL_FLAG
as it's unused.

Changes since V2:
- Fixed dropped 'const' warning
- Dropped use of solid_fill_format
- Switched to using drm_plane_solid_fill_enabled helper method
- Added helper to convert color fill to BGR888 (Rob)
- Added support for solid fill on planes of varying sizes
- Removed DPU_PLANE_COLOR_FILL_FLAG

Signed-off-by: Jessica Zhang <quic_jessz...@quicinc.com>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c  |  9 +++-
 drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 65 ++++++++++++++---------
 2 files changed, 49 insertions(+), 25 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c 
b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index 13ce321283ff..0695b70ea1b7 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -409,6 +409,7 @@ static void _dpu_crtc_blend_setup_mixer(struct drm_crtc 
*crtc,
        struct drm_plane_state *state;
        struct dpu_crtc_state *cstate = to_dpu_crtc_state(crtc->state);
        struct dpu_plane_state *pstate = NULL;
+       const struct msm_format *fmt;
        struct dpu_format *format;
        struct dpu_hw_ctl *ctl = mixer->lm_ctl;
 
@@ -441,7 +442,13 @@ static void _dpu_crtc_blend_setup_mixer(struct drm_crtc 
*crtc,
                                sspp_idx - SSPP_VIG0,
                                state->fb ? state->fb->base.id : -1);
 
-               format = to_dpu_format(msm_framebuffer_format(pstate->base.fb));
+               if (pstate->base.fb)
+                       fmt = msm_framebuffer_format(pstate->base.fb);
+               else
+                       fmt = dpu_get_msm_format(&_dpu_crtc_get_kms(crtc)->base,
+                                       DRM_FORMAT_ABGR8888, 0);
+
+               format = to_dpu_format(fmt);
 
                if (pstate->stage == DPU_STAGE_BASE && format->alpha_enable)
                        bg_alpha_enable = true;
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c 
b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
index 86719020afe2..51a7507373f7 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
@@ -44,7 +44,6 @@
 
 #define DPU_NAME_SIZE  12
 
-#define DPU_PLANE_COLOR_FILL_FLAG      BIT(31)
 #define DPU_ZPOS_MAX 255
 
 /* multirect rect index */
@@ -105,7 +104,6 @@ struct dpu_plane {
        enum dpu_sspp pipe;
 
        struct dpu_hw_pipe *pipe_hw;
-       uint32_t color_fill;
        bool is_error;
        bool is_rt_pipe;
        const struct dpu_mdss_cfg *catalog;
@@ -678,6 +676,17 @@ static void _dpu_plane_setup_scaler(struct dpu_plane *pdpu,
                                &scaler3_cfg);
 }
 
+static uint32_t _dpu_plane_get_fill_color(struct drm_solid_fill solid_fill)
+{
+       uint32_t ret = 0;
+
+       ret |= ((uint8_t) solid_fill.b) << 16;
+       ret |= ((uint8_t) solid_fill.g) << 8;
+       ret |= ((uint8_t) solid_fill.r);
+
+       return ret;
+}
+
 /**
  * _dpu_plane_color_fill - enables color fill on plane
  * @pdpu:   Pointer to DPU plane object
@@ -1001,12 +1010,17 @@ static int dpu_plane_atomic_check(struct drm_plane 
*plane,
 
        dst = drm_plane_state_dest(new_plane_state);
 
-       fb_rect.x2 = new_plane_state->fb->width;
-       fb_rect.y2 = new_plane_state->fb->height;
+       if (new_plane_state->fb) {
+               fb_rect.x2 = new_plane_state->fb->width;
+               fb_rect.y2 = new_plane_state->fb->height;
+       }
 
        max_linewidth = pdpu->catalog->caps->max_linewidth;
 
-       fmt = to_dpu_format(msm_framebuffer_format(new_plane_state->fb));
+       if (new_plane_state->fb)
+               fmt = 
to_dpu_format(msm_framebuffer_format(new_plane_state->fb));
+       else
+               fmt = dpu_get_dpu_format(DRM_FORMAT_ABGR8888);
 
        min_src_size = DPU_FORMAT_IS_YUV(fmt) ? 2 : 1;
 
@@ -1018,7 +1032,7 @@ static int dpu_plane_atomic_check(struct drm_plane *plane,
                return -EINVAL;
 
        /* check src bounds */
-       } else if (!dpu_plane_validate_src(&src, &fb_rect, min_src_size)) {
+       } else if (new_plane_state->fb && !dpu_plane_validate_src(&src, 
&fb_rect, min_src_size)) {
                DPU_DEBUG_PLANE(pdpu, "invalid source " DRM_RECT_FMT "\n",
                                DRM_RECT_ARG(&src));
                return -E2BIG;
@@ -1086,9 +1100,10 @@ void dpu_plane_flush(struct drm_plane *plane)
        if (pdpu->is_error)
                /* force white frame with 100% alpha pipe output on error */
                _dpu_plane_color_fill(pdpu, 0xFFFFFF, 0xFF);
-       else if (pdpu->color_fill & DPU_PLANE_COLOR_FILL_FLAG)
+       else if (!(plane->state->fb) && 
drm_plane_solid_fill_enabled(plane->state))
                /* force 100% alpha */
-               _dpu_plane_color_fill(pdpu, pdpu->color_fill, 0xFF);
+               _dpu_plane_color_fill(pdpu, 
_dpu_plane_get_fill_color(plane->state->solid_fill),
+                               0xFF);
        else if (pdpu->pipe_hw && pdpu->pipe_hw->ops.setup_csc) {
                const struct dpu_format *fmt = 
to_dpu_format(msm_framebuffer_format(plane->state->fb));
                const struct dpu_csc_cfg *csc_ptr = _dpu_plane_get_csc(pdpu, 
fmt);
@@ -1127,23 +1142,30 @@ static void dpu_plane_sspp_atomic_update(struct 
drm_plane *plane)
        struct drm_crtc *crtc = state->crtc;
        struct drm_framebuffer *fb = state->fb;
        bool is_rt_pipe, update_qos_remap;
-       const struct dpu_format *fmt =
-               to_dpu_format(msm_framebuffer_format(fb));
+       const struct dpu_format *fmt;
        struct dpu_hw_pipe_cfg pipe_cfg;
 
-       memset(&pipe_cfg, 0, sizeof(struct dpu_hw_pipe_cfg));
-
-       _dpu_plane_set_scanout(plane, pstate, &pipe_cfg, fb);
-
        pstate->pending = true;
 
        is_rt_pipe = (dpu_crtc_get_client_type(crtc) != NRT_CLIENT);
        _dpu_plane_set_qos_ctrl(plane, false, DPU_PLANE_QOS_PANIC_CTRL);
 
-       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),
-                       (char *)&fmt->base.pixel_format, 
DPU_FORMAT_IS_UBWC(fmt));
+       /* override for color fill */
+       if (!fb && drm_plane_solid_fill_enabled(plane->state)) {
+               /* skip remaining processing on color fill */
+               return;
+       }
+
+       memset(&pipe_cfg, 0, sizeof(struct dpu_hw_pipe_cfg));
+
+       fmt = to_dpu_format(msm_framebuffer_format(fb));
+       _dpu_plane_set_scanout(plane, pstate, &pipe_cfg, fb);
+
+       if (fb)
+               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),
+                               (char *)&fmt->base.pixel_format, 
DPU_FORMAT_IS_UBWC(fmt));
 
        pipe_cfg.src_rect = state->src;
 
@@ -1155,12 +1177,6 @@ static void dpu_plane_sspp_atomic_update(struct 
drm_plane *plane)
 
        pipe_cfg.dst_rect = state->dst;
 
-       /* override for color fill */
-       if (pdpu->color_fill & DPU_PLANE_COLOR_FILL_FLAG) {
-               /* skip remaining processing on color fill */
-               return;
-       }
-
        if (pdpu->pipe_hw->ops.setup_rects) {
                pdpu->pipe_hw->ops.setup_rects(pdpu->pipe_hw,
                                &pipe_cfg,
@@ -1511,6 +1527,7 @@ struct drm_plane *dpu_plane_init(struct drm_device *dev,
                DPU_ERROR("failed to install zpos property, rc = %d\n", ret);
 
        drm_plane_create_alpha_property(plane);
+       drm_plane_create_solid_fill_property(plane);
        drm_plane_create_blend_mode_property(plane,
                        BIT(DRM_MODE_BLEND_PIXEL_NONE) |
                        BIT(DRM_MODE_BLEND_PREMULTI) |
-- 
2.38.1

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