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authorKeith Packard <keithp@keithp.com>2017-07-05 14:34:23 -0700
committerDave Airlie <airlied@redhat.com>2017-10-21 07:23:40 +1000
commitbd386e51805632abed4a0873a84af35f0c6461e3 (patch)
tree5c31397e1799da9a3ef5af1eeb562e47a212a23f /drivers
parent570e86963a511c1b404e81c72d2c42169faf9324 (diff)
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')
-rw-r--r--drivers/gpu/drm/drm_atomic.c7
-rw-r--r--drivers/gpu/drm/drm_plane.c2
-rw-r--r--drivers/gpu/drm/drm_vblank.c41
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c4
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c4
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 {