hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

drm: omapdrm: Rename omap_crtc page flip-related fields 

The old_fb field is only used to indicate whether a page flip is
pending. Turn it into a bool named flip_pending. Rename event and
page_flip_work to flip_event and flip_work for consistency.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Laurent Pinchart 2015-01-26 02:58:51 +02:00
parent 077db4da28
commit 42fb61cc68
1 changed files with 26 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
drivers/gpu/drm/omapdrm/omap_crtc.c
View File

@ -54,19 +54,22 @@ struct omap_crtc {
/* list of framebuffers to unpin */
struct list_head pending_unpins;
/* if there is a pending flip, these will be non-null: */
struct drm_pending_vblank_event *event;
struct drm_framebuffer *old_fb;
/*
* The flip_pending flag indicates if a page flip has been queued and
* hasn't completed yet. The flip event, if any, is stored in
* flip_event.
*
* The flip_work work queue handles page flip requests without caring
* about what context the GEM async callback is called from. Possibly we
* should just make omap_gem always call the cb from the worker so we
* don't have to care about this.
*/
bool flip_pending;
struct drm_pending_vblank_event *flip_event;
struct work_struct flip_work;
struct completion completion;
/* for handling page flips without caring about what
* the callback is called from. Possibly we should just
* make omap_gem always call the cb from the worker so
* we don't have to care about this..
*/
struct work_struct page_flip_work;
bool ignore_digit_sync_lost;
};
@ -293,11 +296,12 @@ static void omap_crtc_vblank_irq(struct omap_drm_irq *irq, uint32_t irqstatus)
spin_lock_irqsave(&dev->event_lock, flags);
/* wakeup userspace */
if (omap_crtc->event)
drm_send_vblank_event(dev, omap_crtc->pipe, omap_crtc->event);
if (omap_crtc->flip_event)
drm_send_vblank_event(dev, omap_crtc->pipe,
omap_crtc->flip_event);
omap_crtc->event = NULL;
omap_crtc->old_fb = NULL;
omap_crtc->flip_event = NULL;
omap_crtc->flip_pending = false;
spin_unlock_irqrestore(&dev->event_lock, flags);
@ -507,7 +511,7 @@ static int omap_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
static void page_flip_worker(struct work_struct *work)
{
struct omap_crtc *omap_crtc =
container_of(work, struct omap_crtc, page_flip_work);
container_of(work, struct omap_crtc, flip_work);
struct drm_crtc *crtc = &omap_crtc->base;
struct drm_display_mode *mode = &crtc->mode;
struct drm_gem_object *bo;
@ -531,7 +535,7 @@ static void page_flip_cb(void *arg)
struct omap_drm_private *priv = crtc->dev->dev_private;
/* avoid assumptions about what ctxt we are called from: */
queue_work(priv->wq, &omap_crtc->page_flip_work);
queue_work(priv->wq, &omap_crtc->flip_work);
}
static int omap_crtc_page_flip(struct drm_crtc *crtc,
@ -550,15 +554,16 @@ static int omap_crtc_page_flip(struct drm_crtc *crtc,
spin_lock_irqsave(&dev->event_lock, flags);
if (omap_crtc->old_fb) {
if (omap_crtc->flip_pending) {
spin_unlock_irqrestore(&dev->event_lock, flags);
dev_err(dev->dev, "already a pending flip\n");
return -EBUSY;
}
omap_crtc->event = event;
omap_crtc->old_fb = primary->fb = fb;
drm_framebuffer_reference(omap_crtc->old_fb);
omap_crtc->flip_event = event;
omap_crtc->flip_pending = true;
primary->fb = fb;
drm_framebuffer_reference(fb);
spin_unlock_irqrestore(&dev->event_lock, flags);
@ -640,7 +645,7 @@ struct drm_crtc *omap_crtc_init(struct drm_device *dev,
crtc = &omap_crtc->base;
INIT_WORK(&omap_crtc->page_flip_work, page_flip_worker);
INIT_WORK(&omap_crtc->flip_work, page_flip_worker);
INIT_LIST_HEAD(&omap_crtc->pending_unpins);