With the help from drm_atomic_helper_check_plane_state function, clipping now handles planes to be partially or totally off-screen. The plane is disabled if it is not visible.
Signed-off-by: Peter Rosin peda@axentia.se --- drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 162 +++++++++--------------- 1 file changed, 61 insertions(+), 101 deletions(-)
diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c index d6f93f029020..05519e8c6586 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c @@ -548,7 +548,8 @@ atmel_hlcdc_plane_prepare_disc_area(struct drm_crtc_state *c_state)
ovl_state = drm_plane_state_to_atmel_hlcdc_plane_state(ovl_s);
- if (!ovl_s->fb || + if (!ovl_s->visible || + !ovl_s->fb || ovl_s->fb->format->has_alpha || ovl_s->alpha != DRM_BLEND_ALPHA_OPAQUE) continue; @@ -600,15 +601,10 @@ static int atmel_hlcdc_plane_atomic_check(struct drm_plane *p, struct drm_framebuffer *fb = state->base.fb; const struct drm_display_mode *mode; struct drm_crtc_state *crtc_state; - unsigned int patched_crtc_w; - unsigned int patched_crtc_h; - unsigned int patched_src_w; - unsigned int patched_src_h; unsigned int tmp; - int x_offset = 0; - int y_offset = 0; int hsub = 1; int vsub = 1; + int ret; int i;
if (!state->base.crtc || !fb) @@ -617,14 +613,21 @@ static int atmel_hlcdc_plane_atomic_check(struct drm_plane *p, crtc_state = drm_atomic_get_existing_crtc_state(s->state, s->crtc); mode = &crtc_state->adjusted_mode;
- state->src_x = s->src_x; - state->src_y = s->src_y; - state->src_h = s->src_h; - state->src_w = s->src_w; - state->crtc_x = s->crtc_x; - state->crtc_y = s->crtc_y; - state->crtc_h = s->crtc_h; - state->crtc_w = s->crtc_w; + ret = drm_atomic_helper_check_plane_state(s, crtc_state, + (1 << 16) / 2048, + INT_MAX, true, true); + if (ret || !s->visible) + return ret; + + state->src_x = s->src.x1; + state->src_y = s->src.y1; + state->src_w = drm_rect_width(&s->src); + state->src_h = drm_rect_height(&s->src); + state->crtc_x = s->dst.x1; + state->crtc_y = s->dst.y1; + state->crtc_w = drm_rect_width(&s->dst); + state->crtc_h = drm_rect_height(&s->dst); + if ((state->src_x | state->src_y | state->src_w | state->src_h) & SUBPIXEL_MASK) return -EINVAL; @@ -638,42 +641,6 @@ static int atmel_hlcdc_plane_atomic_check(struct drm_plane *p, if (state->nplanes > ATMEL_HLCDC_LAYER_MAX_PLANES) return -EINVAL;
- /* - * Swap width and size in case of 90 or 270 degrees rotation - */ - if (drm_rotation_90_or_270(state->base.rotation)) { - tmp = state->src_w; - state->src_w = state->src_h; - state->src_h = tmp; - } - - if (state->crtc_x + state->crtc_w > mode->hdisplay) - patched_crtc_w = mode->hdisplay - state->crtc_x; - else - patched_crtc_w = state->crtc_w; - - if (state->crtc_x < 0) { - patched_crtc_w += state->crtc_x; - x_offset = -state->crtc_x; - state->crtc_x = 0; - } - - if (state->crtc_y + state->crtc_h > mode->vdisplay) - patched_crtc_h = mode->vdisplay - state->crtc_y; - else - patched_crtc_h = state->crtc_h; - - if (state->crtc_y < 0) { - patched_crtc_h += state->crtc_y; - y_offset = -state->crtc_y; - state->crtc_y = 0; - } - - patched_src_w = DIV_ROUND_CLOSEST(patched_crtc_w * state->src_w, - state->crtc_w); - patched_src_h = DIV_ROUND_CLOSEST(patched_crtc_h * state->src_h, - state->crtc_h); - hsub = drm_format_horz_chroma_subsampling(fb->format->format); vsub = drm_format_vert_chroma_subsampling(fb->format->format);
@@ -688,41 +655,38 @@ static int atmel_hlcdc_plane_atomic_check(struct drm_plane *p,
switch (state->base.rotation & DRM_MODE_ROTATE_MASK) { case DRM_MODE_ROTATE_90: - offset = ((y_offset + state->src_y) / ydiv) * + offset = (state->src_y / ydiv) * fb->pitches[i]; - offset += ((x_offset + state->src_x + patched_src_h - 1) / + offset += ((state->src_x + state->src_w - 1) / xdiv) * state->bpp[i]; - state->xstride[i] = -(((patched_src_w - 1) / ydiv) * + state->xstride[i] = -(((state->src_h - 1) / ydiv) * fb->pitches[i]) - (2 * state->bpp[i]); state->pstride[i] = fb->pitches[i] - state->bpp[i]; break; case DRM_MODE_ROTATE_180: - offset = ((y_offset + state->src_y + patched_src_h - 1) / + offset = ((state->src_y + state->src_h - 1) / ydiv) * fb->pitches[i]; - offset += ((x_offset + state->src_x + patched_src_w - 1) / + offset += ((state->src_x + state->src_w - 1) / xdiv) * state->bpp[i]; - state->xstride[i] = ((((patched_src_w - 1) / xdiv) - 1) * + state->xstride[i] = ((((state->src_w - 1) / xdiv) - 1) * state->bpp[i]) - fb->pitches[i]; state->pstride[i] = -2 * state->bpp[i]; break; case DRM_MODE_ROTATE_270: - offset = ((y_offset + state->src_y + patched_src_w - 1) / + offset = ((state->src_y + state->src_h - 1) / ydiv) * fb->pitches[i]; - offset += ((x_offset + state->src_x) / xdiv) * - state->bpp[i]; - state->xstride[i] = ((patched_src_w - 1) / ydiv) * + offset += (state->src_x / xdiv) * state->bpp[i]; + state->xstride[i] = ((state->src_h - 1) / ydiv) * fb->pitches[i]; state->pstride[i] = -fb->pitches[i] - state->bpp[i]; break; case DRM_MODE_ROTATE_0: default: - offset = ((y_offset + state->src_y) / ydiv) * - fb->pitches[i]; - offset += ((x_offset + state->src_x) / xdiv) * - state->bpp[i]; + offset = (state->src_y / ydiv) * fb->pitches[i]; + offset += (state->src_x / xdiv) * state->bpp[i]; state->xstride[i] = fb->pitches[i] - - ((patched_src_w / xdiv) * + ((state->src_w / xdiv) * state->bpp[i]); state->pstride[i] = 0; break; @@ -731,35 +695,45 @@ static int atmel_hlcdc_plane_atomic_check(struct drm_plane *p, state->offsets[i] = offset + fb->offsets[i]; }
- state->src_w = patched_src_w; - state->src_h = patched_src_h; - state->crtc_w = patched_crtc_w; - state->crtc_h = patched_crtc_h; + /* + * Swap width and size in case of 90 or 270 degrees rotation + */ + if (drm_rotation_90_or_270(state->base.rotation)) { + tmp = state->src_w; + state->src_w = state->src_h; + state->src_h = tmp; + }
if (!desc->layout.size && (mode->hdisplay != state->crtc_w || mode->vdisplay != state->crtc_h)) return -EINVAL;
- if (desc->max_height && state->crtc_h > desc->max_height) - return -EINVAL; - - if (desc->max_width && state->crtc_w > desc->max_width) - return -EINVAL; - if ((state->crtc_h != state->src_h || state->crtc_w != state->src_w) && (!desc->layout.memsize || state->base.fb->format->has_alpha)) return -EINVAL;
- if (state->crtc_x < 0 || state->crtc_y < 0) - return -EINVAL; + return 0; +}
- if (state->crtc_w + state->crtc_x > mode->hdisplay || - state->crtc_h + state->crtc_y > mode->vdisplay) - return -EINVAL; +static void atmel_hlcdc_plane_atomic_disable(struct drm_plane *p, + struct drm_plane_state *old_state) +{ + struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p);
- return 0; + /* Disable interrupts */ + atmel_hlcdc_layer_write_reg(&plane->layer, ATMEL_HLCDC_LAYER_IDR, + 0xffffffff); + + /* Disable the layer */ + atmel_hlcdc_layer_write_reg(&plane->layer, ATMEL_HLCDC_LAYER_CHDR, + ATMEL_HLCDC_LAYER_RST | + ATMEL_HLCDC_LAYER_A2Q | + ATMEL_HLCDC_LAYER_UPDATE); + + /* Clear all pending interrupts */ + atmel_hlcdc_layer_read_reg(&plane->layer, ATMEL_HLCDC_LAYER_ISR); }
static void atmel_hlcdc_plane_atomic_update(struct drm_plane *p, @@ -773,6 +747,11 @@ static void atmel_hlcdc_plane_atomic_update(struct drm_plane *p, if (!p->state->crtc || !p->state->fb) return;
+ if (!state->base.visible) { + atmel_hlcdc_plane_atomic_disable(p, old_s); + return; + } + atmel_hlcdc_plane_update_pos_and_size(plane, state); atmel_hlcdc_plane_update_general_settings(plane, state); atmel_hlcdc_plane_update_format(plane, state); @@ -794,25 +773,6 @@ static void atmel_hlcdc_plane_atomic_update(struct drm_plane *p, ATMEL_HLCDC_LAYER_A2Q : ATMEL_HLCDC_LAYER_EN)); }
-static void atmel_hlcdc_plane_atomic_disable(struct drm_plane *p, - struct drm_plane_state *old_state) -{ - struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p); - - /* Disable interrupts */ - atmel_hlcdc_layer_write_reg(&plane->layer, ATMEL_HLCDC_LAYER_IDR, - 0xffffffff); - - /* Disable the layer */ - atmel_hlcdc_layer_write_reg(&plane->layer, ATMEL_HLCDC_LAYER_CHDR, - ATMEL_HLCDC_LAYER_RST | - ATMEL_HLCDC_LAYER_A2Q | - ATMEL_HLCDC_LAYER_UPDATE); - - /* Clear all pending interrupts */ - atmel_hlcdc_layer_read_reg(&plane->layer, ATMEL_HLCDC_LAYER_ISR); -} - static void atmel_hlcdc_plane_destroy(struct drm_plane *p) { struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p);