diff options
| -rw-r--r-- | drivers/gpu/drm/omapdrm/omap_crtc.c | 114 | ||||
| -rw-r--r-- | drivers/gpu/drm/omapdrm/omap_crtc.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/omapdrm/omap_fb.c | 19 |
3 files changed, 129 insertions, 5 deletions
diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.c b/drivers/gpu/drm/omapdrm/omap_crtc.c index 5b6a18a62bbb..d61215494617 100644 --- a/drivers/gpu/drm/omapdrm/omap_crtc.c +++ b/drivers/gpu/drm/omapdrm/omap_crtc.c @@ -32,6 +32,7 @@ struct omap_crtc_state { /* Shadow values for legacy userspace support. */ unsigned int rotation; unsigned int zpos; + bool manually_updated; }; #define to_omap_crtc(x) container_of(x, struct omap_crtc, base) @@ -51,6 +52,7 @@ struct omap_crtc { bool pending; wait_queue_head_t pending_wait; struct drm_pending_vblank_event *event; + struct delayed_work update_work; void (*framedone_handler)(void *); void *framedone_handler_data; @@ -105,21 +107,18 @@ int omap_crtc_wait_pending(struct drm_crtc *crtc) /* * Manager-ops, callbacks from output when they need to configure * the upstream part of the video pipe. - * - * Most of these we can ignore until we add support for command-mode - * panels.. for video-mode the crtc-helpers already do an adequate - * job of sequencing the setup of the video pipe in the proper order */ -/* we can probably ignore these until we support command-mode panels: */ static void omap_crtc_dss_start_update(struct omap_drm_private *priv, enum omap_channel channel) { + priv->dispc_ops->mgr_enable(priv->dispc, channel, true); } /* Called only from the encoder enable/disable and suspend/resume handlers. */ static void omap_crtc_set_enabled(struct drm_crtc *crtc, bool enable) { + struct omap_crtc_state *omap_state = to_omap_crtc_state(crtc->state); struct drm_device *dev = crtc->dev; struct omap_drm_private *priv = dev->dev_private; struct omap_crtc *omap_crtc = to_omap_crtc(crtc); @@ -131,6 +130,12 @@ static void omap_crtc_set_enabled(struct drm_crtc *crtc, bool enable) if (WARN_ON(omap_crtc->enabled == enable)) return; + if (omap_state->manually_updated) { + omap_irq_enable_framedone(crtc, enable); + omap_crtc->enabled = enable; + return; + } + if (omap_crtc->pipe->output->type == OMAP_DISPLAY_TYPE_HDMI) { priv->dispc_ops->mgr_enable(priv->dispc, channel, enable); omap_crtc->enabled = enable; @@ -350,6 +355,51 @@ void omap_crtc_framedone_irq(struct drm_crtc *crtc, uint32_t irqstatus) wake_up(&omap_crtc->pending_wait); } +void omap_crtc_flush(struct drm_crtc *crtc) +{ + struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + struct omap_crtc_state *omap_state = to_omap_crtc_state(crtc->state); + + if (!omap_state->manually_updated) + return; + + if (!delayed_work_pending(&omap_crtc->update_work)) + schedule_delayed_work(&omap_crtc->update_work, 0); +} + +static void omap_crtc_manual_display_update(struct work_struct *data) +{ + struct omap_crtc *omap_crtc = + container_of(data, struct omap_crtc, update_work.work); + struct drm_display_mode *mode = &omap_crtc->pipe->crtc->mode; + struct omap_dss_device *dssdev = omap_crtc->pipe->output->next; + struct drm_device *dev = omap_crtc->base.dev; + const struct omap_dss_driver *dssdrv; + int ret; + + if (!dssdev) { + dev_err_once(dev->dev, "missing display dssdev!"); + return; + } + + dssdrv = dssdev->driver; + if (!dssdrv || !dssdrv->update) { + dev_err_once(dev->dev, "missing or incorrect dssdrv!"); + return; + } + + if (dssdrv->sync) + dssdrv->sync(dssdev); + + ret = dssdrv->update(dssdev, 0, 0, mode->hdisplay, mode->vdisplay); + if (ret < 0) { + spin_lock_irq(&dev->event_lock); + omap_crtc->pending = false; + spin_unlock_irq(&dev->event_lock); + wake_up(&omap_crtc->pending_wait); + } +} + static void omap_crtc_write_crtc_properties(struct drm_crtc *crtc) { struct omap_drm_private *priv = crtc->dev->dev_private; @@ -399,12 +449,17 @@ static void omap_crtc_atomic_enable(struct drm_crtc *crtc, { struct omap_drm_private *priv = crtc->dev->dev_private; struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + struct omap_crtc_state *omap_state = to_omap_crtc_state(crtc->state); int ret; DBG("%s", omap_crtc->name); priv->dispc_ops->runtime_get(priv->dispc); + /* manual updated display will not trigger vsync irq */ + if (omap_state->manually_updated) + return; + spin_lock_irq(&crtc->dev->event_lock); drm_crtc_vblank_on(crtc); ret = drm_crtc_vblank_get(crtc); @@ -419,6 +474,7 @@ static void omap_crtc_atomic_disable(struct drm_crtc *crtc, { struct omap_drm_private *priv = crtc->dev->dev_private; struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + struct drm_device *dev = crtc->dev; DBG("%s", omap_crtc->name); @@ -429,6 +485,11 @@ static void omap_crtc_atomic_disable(struct drm_crtc *crtc, } spin_unlock_irq(&crtc->dev->event_lock); + cancel_delayed_work(&omap_crtc->update_work); + + if (!omap_crtc_wait_pending(crtc)) + dev_warn(dev->dev, "manual display update did not finish!"); + drm_crtc_vblank_off(crtc); priv->dispc_ops->runtime_put(priv->dispc); @@ -499,6 +560,22 @@ static void omap_crtc_mode_set_nofb(struct drm_crtc *crtc) drm_display_mode_to_videomode(mode, &omap_crtc->vm); } +static bool omap_crtc_is_manually_updated(struct drm_crtc *crtc) +{ + struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + struct omap_dss_device *display = omap_crtc->pipe->output->next; + + if (!display) + return false; + + if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) { + DBG("detected manually updated display!"); + return true; + } + + return false; +} + static int omap_crtc_atomic_check(struct drm_crtc *crtc, struct drm_crtc_state *state) { @@ -520,6 +597,9 @@ static int omap_crtc_atomic_check(struct drm_crtc *crtc, /* Mirror new values for zpos and rotation in omap_crtc_state */ omap_crtc_state->zpos = pri_state->zpos; omap_crtc_state->rotation = pri_state->rotation; + + /* Check if this CRTC is for a manually updated display */ + omap_crtc_state->manually_updated = omap_crtc_is_manually_updated(crtc); } return 0; @@ -535,6 +615,7 @@ static void omap_crtc_atomic_flush(struct drm_crtc *crtc, { struct omap_drm_private *priv = crtc->dev->dev_private; struct omap_crtc *omap_crtc = to_omap_crtc(crtc); + struct omap_crtc_state *omap_crtc_state = to_omap_crtc_state(crtc->state); int ret; if (crtc->state->color_mgmt_changed) { @@ -559,6 +640,15 @@ static void omap_crtc_atomic_flush(struct drm_crtc *crtc, DBG("%s: GO", omap_crtc->name); + if (omap_crtc_state->manually_updated) { + /* send new image for page flips and modeset changes */ + spin_lock_irq(&crtc->dev->event_lock); + omap_crtc_flush(crtc); + omap_crtc_arm_event(crtc); + spin_unlock_irq(&crtc->dev->event_lock); + return; + } + ret = drm_crtc_vblank_get(crtc); WARN_ON(ret != 0); @@ -644,6 +734,7 @@ omap_crtc_duplicate_state(struct drm_crtc *crtc) state->zpos = current_state->zpos; state->rotation = current_state->rotation; + state->manually_updated = current_state->manually_updated; return &state->base; } @@ -720,6 +811,19 @@ struct drm_crtc *omap_crtc_init(struct drm_device *dev, omap_crtc->channel = channel; omap_crtc->name = channel_names[channel]; + /* + * We want to refresh manually updated displays from dirty callback, + * which is called quite often (e.g. for each drawn line). This will + * be used to do the display update asynchronously to avoid blocking + * the rendering process and merges multiple dirty calls into one + * update if they arrive very fast. We also call this function for + * atomic display updates (e.g. for page flips), which means we do + * not need extra locking. Atomic updates should be synchronous, but + * need to wait for the framedone interrupt anyways. + */ + INIT_DELAYED_WORK(&omap_crtc->update_work, + omap_crtc_manual_display_update); + ret = drm_crtc_init_with_planes(dev, crtc, plane, NULL, &omap_crtc_funcs, NULL); if (ret < 0) { diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.h b/drivers/gpu/drm/omapdrm/omap_crtc.h index d33bbb7a4f90..2b518c74203e 100644 --- a/drivers/gpu/drm/omapdrm/omap_crtc.h +++ b/drivers/gpu/drm/omapdrm/omap_crtc.h @@ -42,5 +42,6 @@ int omap_crtc_wait_pending(struct drm_crtc *crtc); void omap_crtc_error_irq(struct drm_crtc *crtc, u32 irqstatus); void omap_crtc_vblank_irq(struct drm_crtc *crtc); void omap_crtc_framedone_irq(struct drm_crtc *crtc, uint32_t irqstatus); +void omap_crtc_flush(struct drm_crtc *crtc); #endif /* __OMAPDRM_CRTC_H__ */ diff --git a/drivers/gpu/drm/omapdrm/omap_fb.c b/drivers/gpu/drm/omapdrm/omap_fb.c index 6557b2d6e16e..06d5c5081e41 100644 --- a/drivers/gpu/drm/omapdrm/omap_fb.c +++ b/drivers/gpu/drm/omapdrm/omap_fb.c @@ -66,8 +66,27 @@ struct omap_framebuffer { struct mutex lock; }; +static int omap_framebuffer_dirty(struct drm_framebuffer *fb, + struct drm_file *file_priv, + unsigned flags, unsigned color, + struct drm_clip_rect *clips, + unsigned num_clips) +{ + struct drm_crtc *crtc; + + drm_modeset_lock_all(fb->dev); + + drm_for_each_crtc(crtc, fb->dev) + omap_crtc_flush(crtc); + + drm_modeset_unlock_all(fb->dev); + + return 0; +} + static const struct drm_framebuffer_funcs omap_framebuffer_funcs = { .create_handle = drm_gem_fb_create_handle, + .dirty = omap_framebuffer_dirty, .destroy = drm_gem_fb_destroy, }; |