diff options
author | Keith Packard <keithp@keithp.com> | 2017-07-05 14:34:23 -0700 |
---|---|---|
committer | Dave Airlie <airlied@redhat.com> | 2017-10-21 07:23:40 +1000 |
commit | bd386e51805632abed4a0873a84af35f0c6461e3 (patch) | |
tree | 5c31397e1799da9a3ef5af1eeb562e47a212a23f /drivers/gpu | |
parent | 570e86963a511c1b404e81c72d2c42169faf9324 (diff) | |
download | linux-bd386e51805632abed4a0873a84af35f0c6461e3.tar.bz2 |
drm: Reorganize drm_pending_event to support future event types [v2]
Place drm_event_vblank in a new union that includes that and a bare
drm_event structure. This will allow new members of that union to be
added in the future without changing code related to the existing vbl
event type.
Assignments to the crtc_id field are now done when the event is
allocated, rather than when delievered. This way, delivery doesn't
need to have the crtc ID available.
v2:
* Remove 'dev' argument from create_vblank_event
It wasn't being used anyways, and if we need it in the future,
we can always get it from crtc->dev.
* Check for MODESETTING before looking for crtc in queue_vblank_event
UMS drivers will oops if we try to get a crtc, so make sure
we're modesetting before we try to find a crtc_id to fill into
the event.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
(cherry picked from commit dc695b85fde88eca3ef3b03fcd82f15b6bc6e462)
Diffstat (limited to 'drivers/gpu')
-rw-r--r-- | drivers/gpu/drm/drm_atomic.c | 7 | ||||
-rw-r--r-- | drivers/gpu/drm/drm_plane.c | 2 | ||||
-rw-r--r-- | drivers/gpu/drm/drm_vblank.c | 41 | ||||
-rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c | 4 | ||||
-rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c | 4 |
5 files changed, 33 insertions, 25 deletions
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 562494873ca5..c2da5585e201 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -1812,7 +1812,7 @@ int drm_atomic_debugfs_init(struct drm_minor *minor) */ static struct drm_pending_vblank_event *create_vblank_event( - struct drm_device *dev, uint64_t user_data) + struct drm_crtc *crtc, uint64_t user_data) { struct drm_pending_vblank_event *e = NULL; @@ -1822,7 +1822,8 @@ static struct drm_pending_vblank_event *create_vblank_event( e->event.base.type = DRM_EVENT_FLIP_COMPLETE; e->event.base.length = sizeof(e->event); - e->event.user_data = user_data; + e->event.vbl.crtc_id = crtc->base.id; + e->event.vbl.user_data = user_data; return e; } @@ -2076,7 +2077,7 @@ static int prepare_crtc_signaling(struct drm_device *dev, if (arg->flags & DRM_MODE_PAGE_FLIP_EVENT || fence_ptr) { struct drm_pending_vblank_event *e; - e = create_vblank_event(dev, arg->user_data); + e = create_vblank_event(crtc, arg->user_data); if (!e) return -ENOMEM; diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c index 8090e50607fa..8d9824804b0c 100644 --- a/drivers/gpu/drm/drm_plane.c +++ b/drivers/gpu/drm/drm_plane.c @@ -1025,7 +1025,7 @@ retry: } e->event.base.type = DRM_EVENT_FLIP_COMPLETE; e->event.base.length = sizeof(e->event); - e->event.user_data = page_flip->user_data; + e->event.vbl.user_data = page_flip->user_data; ret = drm_event_reserve_init(dev, file_priv, &e->base, &e->event.base); if (ret) { kfree(e); diff --git a/drivers/gpu/drm/drm_vblank.c b/drivers/gpu/drm/drm_vblank.c index c7e5a274f419..27b6db073a5c 100644 --- a/drivers/gpu/drm/drm_vblank.c +++ b/drivers/gpu/drm/drm_vblank.c @@ -804,20 +804,23 @@ static void send_vblank_event(struct drm_device *dev, struct drm_pending_vblank_event *e, u64 seq, ktime_t now) { - struct timespec64 tv = ktime_to_timespec64(now); - - e->event.sequence = seq; - /* - * e->event is a user space structure, with hardcoded unsigned - * 32-bit seconds/microseconds. This is safe as we always use - * monotonic timestamps since linux-4.15 - */ - e->event.tv_sec = tv.tv_sec; - e->event.tv_usec = tv.tv_nsec / 1000; - - trace_drm_vblank_event_delivered(e->base.file_priv, e->pipe, - e->event.sequence); + struct timespec64 tv; + switch (e->event.base.type) { + case DRM_EVENT_VBLANK: + case DRM_EVENT_FLIP_COMPLETE: + tv = ktime_to_timespec64(now); + e->event.vbl.sequence = seq; + /* + * e->event is a user space structure, with hardcoded unsigned + * 32-bit seconds/microseconds. This is safe as we always use + * monotonic timestamps since linux-4.15 + */ + e->event.vbl.tv_sec = tv.tv_sec; + e->event.vbl.tv_usec = tv.tv_nsec / 1000; + break; + } + trace_drm_vblank_event_delivered(e->base.file_priv, e->pipe, seq); drm_send_event_locked(dev, &e->base); } @@ -869,7 +872,6 @@ void drm_crtc_arm_vblank_event(struct drm_crtc *crtc, e->pipe = pipe; e->sequence = drm_crtc_accurate_vblank_count(crtc) + 1; - e->event.crtc_id = crtc->base.id; list_add_tail(&e->base.link, &dev->vblank_event_list); } EXPORT_SYMBOL(drm_crtc_arm_vblank_event); @@ -901,7 +903,6 @@ void drm_crtc_send_vblank_event(struct drm_crtc *crtc, now = ktime_get(); } e->pipe = pipe; - e->event.crtc_id = crtc->base.id; send_vblank_event(dev, e, seq, now); } EXPORT_SYMBOL(drm_crtc_send_vblank_event); @@ -1336,8 +1337,14 @@ static int drm_queue_vblank_event(struct drm_device *dev, unsigned int pipe, e->pipe = pipe; e->event.base.type = DRM_EVENT_VBLANK; - e->event.base.length = sizeof(e->event); - e->event.user_data = vblwait->request.signal; + e->event.base.length = sizeof(e->event.vbl); + e->event.vbl.user_data = vblwait->request.signal; + e->event.vbl.crtc_id = 0; + if (drm_core_check_feature(dev, DRIVER_MODESET)) { + struct drm_crtc *crtc = drm_crtc_from_index(dev, pipe); + if (crtc) + e->event.vbl.crtc_id = crtc->base.id; + } spin_lock_irqsave(&dev->event_lock, flags); diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c index d1552d3e0652..bc5f6026573d 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c @@ -360,8 +360,8 @@ static int vmw_sou_crtc_page_flip(struct drm_crtc *crtc, ret = vmw_event_fence_action_queue(file_priv, fence, &event->base, - &event->event.tv_sec, - &event->event.tv_usec, + &event->event.vbl.tv_sec, + &event->event.vbl.tv_usec, true); } diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c index ca3afae2db1f..90b5437fd787 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c @@ -549,8 +549,8 @@ static int vmw_stdu_crtc_page_flip(struct drm_crtc *crtc, ret = vmw_event_fence_action_queue(file_priv, fence, &event->base, - &event->event.tv_sec, - &event->event.tv_usec, + &event->event.vbl.tv_sec, + &event->event.vbl.tv_usec, true); vmw_fence_obj_unreference(&fence); } else { |