From ef6b0e0275387f79e6ad848d61dfcb1a4f962fc7 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Sun, 11 Jan 2015 00:11:18 +0200 Subject: [PATCH] drm: omapdrm: Switch to the universal plane API Remove the CRTC private planes by switching to the universal plane API. This results in a merge of the CRTC private plane created by the driver (omap_crtc->plane) and the CRTC primary plane created by the DRM core (crtc->primary). Reference counting of the framebuffers in the update plane operation is thus simplified as no reference needs to be stored in the private plane anymore. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/omapdrm/omap_crtc.c | 43 ++++++++++++++-------------- drivers/gpu/drm/omapdrm/omap_drv.c | 4 +-- drivers/gpu/drm/omapdrm/omap_drv.h | 2 +- drivers/gpu/drm/omapdrm/omap_plane.c | 36 ++++++++++++++--------- 4 files changed, 46 insertions(+), 39 deletions(-) diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.c b/drivers/gpu/drm/omapdrm/omap_crtc.c index b9c3d8f830e8..7570db59a9ea 100644 --- a/drivers/gpu/drm/omapdrm/omap_crtc.c +++ b/drivers/gpu/drm/omapdrm/omap_crtc.c @@ -28,7 +28,6 @@ struct omap_crtc { struct drm_crtc base; - struct drm_plane *plane; const char *name; int pipe; @@ -217,10 +216,7 @@ static void omap_crtc_dpms(struct drm_crtc *crtc, int mode) omap_crtc->full_update = true; omap_crtc_apply(crtc, &omap_crtc->apply); - /* also enable our private plane: */ - WARN_ON(omap_plane_dpms(omap_crtc->plane, mode)); - - /* and any attached overlay planes: */ + /* Enable/disable all planes associated with the CRTC. */ for (i = 0; i < priv->num_planes; i++) { struct drm_plane *plane = priv->planes[i]; if (plane->crtc == crtc) @@ -258,7 +254,13 @@ static int omap_crtc_mode_set(struct drm_crtc *crtc, copy_timings_drm_to_omap(&omap_crtc->timings, mode); omap_crtc->full_update = true; - return omap_plane_mode_set(omap_crtc->plane, crtc, crtc->primary->fb, + /* + * The primary plane CRTC can be reset if the plane is disabled directly + * through the universal plane API. Set it again here. + */ + crtc->primary->crtc = crtc; + + return omap_plane_mode_set(crtc->primary, crtc, crtc->primary->fb, 0, 0, mode->hdisplay, mode->vdisplay, x << 16, y << 16, mode->hdisplay << 16, mode->vdisplay << 16, @@ -282,8 +284,7 @@ static void omap_crtc_commit(struct drm_crtc *crtc) static int omap_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, struct drm_framebuffer *old_fb) { - struct omap_crtc *omap_crtc = to_omap_crtc(crtc); - struct drm_plane *plane = omap_crtc->plane; + struct drm_plane *plane = crtc->primary; struct drm_display_mode *mode = &crtc->mode; return omap_plane_mode_set(plane, crtc, crtc->primary->fb, @@ -321,7 +322,7 @@ static void page_flip_worker(struct work_struct *work) struct drm_gem_object *bo; drm_modeset_lock(&crtc->mutex, NULL); - omap_plane_mode_set(omap_crtc->plane, crtc, crtc->primary->fb, + omap_plane_mode_set(crtc->primary, crtc, crtc->primary->fb, 0, 0, mode->hdisplay, mode->vdisplay, crtc->x << 16, crtc->y << 16, mode->hdisplay << 16, mode->vdisplay << 16, @@ -385,7 +386,6 @@ static int omap_crtc_page_flip_locked(struct drm_crtc *crtc, static int omap_crtc_set_property(struct drm_crtc *crtc, struct drm_property *property, uint64_t val) { - struct omap_crtc *omap_crtc = to_omap_crtc(crtc); struct omap_drm_private *priv = crtc->dev->dev_private; if (property == priv->rotation_prop) { @@ -393,7 +393,7 @@ static int omap_crtc_set_property(struct drm_crtc *crtc, !!(val & ((1LL << DRM_ROTATE_90) | (1LL << DRM_ROTATE_270))); } - return omap_plane_set_property(omap_crtc->plane, property, val); + return omap_plane_set_property(crtc->primary, property, val); } static const struct drm_crtc_funcs omap_crtc_funcs = { @@ -681,12 +681,13 @@ struct drm_crtc *omap_crtc_init(struct drm_device *dev, struct drm_crtc *crtc = NULL; struct omap_crtc *omap_crtc; struct omap_overlay_manager_info *info; + int ret; DBG("%s", channel_names[channel]); omap_crtc = kzalloc(sizeof(*omap_crtc), GFP_KERNEL); if (!omap_crtc) - goto fail; + return NULL; crtc = &omap_crtc->base; @@ -700,8 +701,6 @@ struct drm_crtc *omap_crtc_init(struct drm_device *dev, omap_crtc->apply.post_apply = omap_crtc_post_apply; omap_crtc->channel = channel; - omap_crtc->plane = plane; - omap_crtc->plane->crtc = crtc; omap_crtc->name = channel_names[channel]; omap_crtc->pipe = id; @@ -723,18 +722,18 @@ struct drm_crtc *omap_crtc_init(struct drm_device *dev, info->trans_key_type = OMAP_DSS_COLOR_KEY_GFX_DST; info->trans_enabled = false; - drm_crtc_init(dev, crtc, &omap_crtc_funcs); + ret = drm_crtc_init_with_planes(dev, crtc, plane, NULL, + &omap_crtc_funcs); + if (ret < 0) { + kfree(omap_crtc); + return NULL; + } + drm_crtc_helper_add(crtc, &omap_crtc_helper_funcs); - omap_plane_install_properties(omap_crtc->plane, &crtc->base); + omap_plane_install_properties(crtc->primary, &crtc->base); omap_crtcs[channel] = omap_crtc; return crtc; - -fail: - if (crtc) - omap_crtc_destroy(crtc); - - return NULL; } diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c index 021855605a1f..5eab83d7de15 100644 --- a/drivers/gpu/drm/omapdrm/omap_drv.c +++ b/drivers/gpu/drm/omapdrm/omap_drv.c @@ -135,7 +135,7 @@ static int omap_modeset_create_crtc(struct drm_device *dev, int id, struct drm_plane *plane; struct drm_crtc *crtc; - plane = omap_plane_init(dev, id, true); + plane = omap_plane_init(dev, id, DRM_PLANE_TYPE_PRIMARY); if (IS_ERR(plane)) return PTR_ERR(plane); @@ -277,7 +277,7 @@ static int omap_modeset_init(struct drm_device *dev) for (; id < num_ovls; id++) { struct drm_plane *plane; - plane = omap_plane_init(dev, id, false); + plane = omap_plane_init(dev, id, DRM_PLANE_TYPE_OVERLAY); if (IS_ERR(plane)) return PTR_ERR(plane); diff --git a/drivers/gpu/drm/omapdrm/omap_drv.h b/drivers/gpu/drm/omapdrm/omap_drv.h index 60e47b33c801..f38ffd14ff06 100644 --- a/drivers/gpu/drm/omapdrm/omap_drv.h +++ b/drivers/gpu/drm/omapdrm/omap_drv.h @@ -160,7 +160,7 @@ struct drm_crtc *omap_crtc_init(struct drm_device *dev, void omap_crtc_flush(struct drm_crtc *crtc); struct drm_plane *omap_plane_init(struct drm_device *dev, - int plane_id, bool private_plane); + int id, enum drm_plane_type type); int omap_plane_dpms(struct drm_plane *plane, int mode); int omap_plane_mode_set(struct drm_plane *plane, struct drm_crtc *crtc, struct drm_framebuffer *fb, diff --git a/drivers/gpu/drm/omapdrm/omap_plane.c b/drivers/gpu/drm/omapdrm/omap_plane.c index c17460336fcc..32df3e783128 100644 --- a/drivers/gpu/drm/omapdrm/omap_plane.c +++ b/drivers/gpu/drm/omapdrm/omap_plane.c @@ -220,14 +220,6 @@ int omap_plane_mode_set(struct drm_plane *plane, omap_plane->apply_done_cb.arg = arg; } - if (plane->fb) - drm_framebuffer_unreference(plane->fb); - - drm_framebuffer_reference(fb); - - plane->fb = fb; - plane->crtc = crtc; - return apply(plane); } @@ -249,6 +241,13 @@ static int omap_plane_update(struct drm_plane *plane, break; } + /* + * We don't need to take a reference to the framebuffer as the DRM core + * has already done so for the purpose of setting plane->fb. + */ + plane->fb = fb; + plane->crtc = crtc; + return omap_plane_mode_set(plane, crtc, fb, crtc_x, crtc_y, crtc_w, crtc_h, src_x, src_y, src_w, src_h, @@ -377,14 +376,15 @@ static const uint32_t error_irqs[] = { /* initialize plane */ struct drm_plane *omap_plane_init(struct drm_device *dev, - int id, bool private_plane) + int id, enum drm_plane_type type) { struct omap_drm_private *priv = dev->dev_private; - struct drm_plane *plane = NULL; + struct drm_plane *plane; struct omap_plane *omap_plane; struct omap_overlay_info *info; + int ret; - DBG("%s: priv=%d", plane_names[id], private_plane); + DBG("%s: type=%d", plane_names[id], type); omap_plane = kzalloc(sizeof(*omap_plane), GFP_KERNEL); if (!omap_plane) @@ -408,8 +408,11 @@ struct drm_plane *omap_plane_init(struct drm_device *dev, omap_plane->error_irq.irq = omap_plane_error_irq; omap_irq_register(dev, &omap_plane->error_irq); - drm_plane_init(dev, plane, (1 << priv->num_crtcs) - 1, &omap_plane_funcs, - omap_plane->formats, omap_plane->nformats, private_plane); + ret = drm_universal_plane_init(dev, plane, (1 << priv->num_crtcs) - 1, + &omap_plane_funcs, omap_plane->formats, + omap_plane->nformats, type); + if (ret < 0) + goto error; omap_plane_install_properties(plane, &plane->base); @@ -427,10 +430,15 @@ struct drm_plane *omap_plane_init(struct drm_device *dev, * TODO add ioctl to give userspace an API to change this.. this * will come in a subsequent patch. */ - if (private_plane) + if (type == DRM_PLANE_TYPE_PRIMARY) omap_plane->info.zorder = 0; else omap_plane->info.zorder = id; return plane; + +error: + omap_irq_unregister(plane->dev, &omap_plane->error_irq); + kfree(omap_plane); + return NULL; } -- 2.20.1