Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751932AbdHAFDS (ORCPT ); Tue, 1 Aug 2017 01:03:18 -0400 Received: from home.keithp.com ([63.227.221.253]:38376 "EHLO elaine.keithp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751085AbdHAFDQ (ORCPT ); Tue, 1 Aug 2017 01:03:16 -0400 From: Keith Packard To: linux-kernel@vger.kernel.org, Dave Airlie , Daniel Vetter Cc: dri-devel@lists.freedesktop.org, Keith Packard Subject: [PATCH 2/3] drm: Reorganize drm_pending_event to support future event types [v2] Date: Mon, 31 Jul 2017 22:03:05 -0700 Message-Id: <20170801050306.24423-3-keithp@keithp.com> X-Mailer: git-send-email 2.13.3 In-Reply-To: <20170801050306.24423-1-keithp@keithp.com> References: <20170705221013.27940-1-keithp@keithp.com> <20170801050306.24423-1-keithp@keithp.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 6839 Lines: 196 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 --- drivers/gpu/drm/drm_atomic.c | 7 ++++--- drivers/gpu/drm/drm_plane.c | 2 +- drivers/gpu/drm/drm_vblank.c | 30 ++++++++++++++++++------------ drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c | 4 ++-- drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c | 4 ++-- include/drm/drm_vblank.h | 8 +++++++- 6 files changed, 34 insertions(+), 21 deletions(-) diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index c0f336d23f9c..272b83ea9369 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -1839,7 +1839,7 @@ 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; @@ -1849,7 +1849,8 @@ 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; } @@ -2052,7 +2053,7 @@ 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 5dc8c4350602..fe9f31285bc2 100644 --- a/drivers/gpu/drm/drm_plane.c +++ b/drivers/gpu/drm/drm_plane.c @@ -918,7 +918,7 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev, } 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 346601ad698d..7e7119a5ada3 100644 --- a/drivers/gpu/drm/drm_vblank.c +++ b/drivers/gpu/drm/drm_vblank.c @@ -804,14 +804,16 @@ static void send_vblank_event(struct drm_device *dev, { struct timeval tv; - tv = ktime_to_timeval(now); - e->event.sequence = seq; - e->event.tv_sec = tv.tv_sec; - e->event.tv_usec = tv.tv_usec; - - trace_drm_vblank_event_delivered(e->base.file_priv, e->pipe, - e->event.sequence); - + switch (e->event.base.type) { + case DRM_EVENT_VBLANK: + case DRM_EVENT_FLIP_COMPLETE: + tv = ktime_to_timeval(now); + e->event.vbl.sequence = seq; + e->event.vbl.tv_sec = tv.tv_sec; + e->event.vbl.tv_usec = tv.tv_usec; + break; + } + trace_drm_vblank_event_delivered(e->base.file_priv, e->pipe, seq); drm_send_event_locked(dev, &e->base); } @@ -863,7 +865,6 @@ void drm_crtc_arm_vblank_event(struct drm_crtc *crtc, e->pipe = pipe; e->sequence = drm_vblank_count(dev, pipe); - e->event.crtc_id = crtc->base.id; list_add_tail(&e->base.link, &dev->vblank_event_list); } EXPORT_SYMBOL(drm_crtc_arm_vblank_event); @@ -894,7 +895,6 @@ void drm_crtc_send_vblank_event(struct drm_crtc *crtc, now = get_drm_timestamp(); } e->pipe = pipe; - e->event.crtc_id = crtc->base.id; send_vblank_event(dev, e, seq, now); } EXPORT_SYMBOL(drm_crtc_send_vblank_event); @@ -1354,8 +1354,14 @@ 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 8d7dc9def7c2..c13b97338310 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c @@ -358,8 +358,8 @@ 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 bad31bdf09b6..4e329588ce9c 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c @@ -544,8 +544,8 @@ 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 { diff --git a/include/drm/drm_vblank.h b/include/drm/drm_vblank.h index e809ab244919..3013c55aec1d 100644 --- a/include/drm/drm_vblank.h +++ b/include/drm/drm_vblank.h @@ -54,7 +54,10 @@ struct drm_pending_vblank_event { /** * @event: Actual event which will be sent to userspace. */ - struct drm_event_vblank event; + union { + struct drm_event base; + struct drm_event_vblank vbl; + } event; }; /** @@ -163,6 +166,9 @@ void drm_crtc_send_vblank_event(struct drm_crtc *crtc, struct drm_pending_vblank_event *e); void drm_crtc_arm_vblank_event(struct drm_crtc *crtc, struct drm_pending_vblank_event *e); +void drm_vblank_set_event(struct drm_pending_vblank_event *e, + u64 *seq, + ktime_t *now); bool drm_handle_vblank(struct drm_device *dev, unsigned int pipe); bool drm_crtc_handle_vblank(struct drm_crtc *crtc); int drm_crtc_vblank_get(struct drm_crtc *crtc); -- 2.13.3