src: prepare to convert to 64-bit msc

Prepare conversion to 64-bit MSC support.

Signed-off-by: Russell King <rmk@arm.linux.org.uk>

5 files changed, 43 insertions, 34 deletions

diff --git a/src/common_drm.c b/src/common_drm.c
index db71134..b641a14 100644
--- a/src/common_drm.c
+++ b/src/common_drm.c
@@ -112,6 +112,16 @@ static void drmmode_ConvertFromKMode(ScrnInfoPtr pScrn,
 	xf86SetModeCrtc (mode, pScrn->adjustFlags);
 }
 
+static uint64_t common_drm_frame_to_msc(xf86CrtcPtr crtc, uint32_t seq)
+{
+	return seq;
+}
+
+static uint32_t common_drm_msc_to_frame(xf86CrtcPtr crtc, uint64_t msc)
+{
+	return msc;
+}
+
 static drmModePropertyPtr common_drm_conn_find_property(
 	struct common_conn_info *conn, const char *name, uint32_t *blob)
 {
@@ -726,8 +736,9 @@ static void common_drm_event(int fd, unsigned int frame, unsigned int tv_sec,
 	unsigned int tv_usec, void *event_data)
 {
 	struct common_drm_event *event = event_data;
+	uint64_t msc = common_drm_frame_to_msc(event->crtc, frame);
 
-	event->handler(event, frame, tv_sec, tv_usec);
+	event->handler(event, msc, tv_sec, tv_usec);
 }
 
 Bool common_drm_init_mode_resources(ScrnInfoPtr pScrn,
@@ -783,12 +794,12 @@ Bool common_drm_init_mode_resources(ScrnInfoPtr pScrn,
 }
 
 static void common_drm_flip_handler(struct common_drm_event *event,
-	unsigned int frame, unsigned int tv_sec, unsigned int tv_usec)
+	uint64_t msc, unsigned int tv_sec, unsigned int tv_usec)
 {
 	struct common_drm_info *drm = event->drm;
 
 	if (drm->flip_ref_crtc == event->crtc) {
-		drm->flip_frame = frame;
+		drm->flip_msc = msc;
 		drm->flip_tv_sec = tv_sec;
 		drm->flip_tv_usec = tv_usec;
 	}
@@ -803,7 +814,7 @@ static void common_drm_flip_handler(struct common_drm_event *event,
 	/* Now pass the event on to the flip complete event handler */
 	event = drm->flip_event;
 	if (event)
-		event->handler(event, drm->flip_frame, drm->flip_tv_sec,
+		event->handler(event, drm->flip_msc, drm->flip_tv_sec,
 			       drm->flip_tv_usec);
 }
 
@@ -863,7 +874,7 @@ Bool common_drm_flip(ScrnInfoPtr pScrn, PixmapPtr pixmap,
 	if (drm->flip_count) {
 		drm->flip_event = event;
 		drm->flip_ref_crtc = ref_crtc;
-		drm->flip_frame = 0;
+		drm->flip_msc = 0;
 		drm->flip_tv_sec = 0;
 		drm->flip_tv_usec = 0;
 		drm->flip_old_fb_id = old_fb_id;
@@ -1389,31 +1400,35 @@ int common_drm_get_msc(xf86CrtcPtr crtc, uint64_t *ust, uint64_t *msc)
 		return BadMatch;
 
 	*ust = ((CARD64)vbl.reply.tval_sec * 1000000) + vbl.reply.tval_usec;
-	*msc = vbl.reply.sequence;
+	*msc = common_drm_frame_to_msc(crtc, vbl.reply.sequence);
 
 	return Success;
 }
 
 _X_EXPORT
-int common_drm_vblank_queue_event(ScrnInfoPtr pScrn, xf86CrtcPtr crtc,
-	drmVBlank *vbl, const char *func, Bool nextonmiss,
+int common_drm_queue_msc_event(ScrnInfoPtr pScrn, xf86CrtcPtr crtc,
+	uint64_t *msc, const char *func, Bool nextonmiss,
 	struct common_drm_event *event)
 {
 	struct common_drm_info *drm = GET_DRM_INFO(pScrn);
+	drmVBlank vbl;
 	int ret;
 
-	vbl->request.type = DRM_VBLANK_ABSOLUTE | DRM_VBLANK_EVENT |
+	vbl.request.type = DRM_VBLANK_ABSOLUTE | DRM_VBLANK_EVENT |
 				req_crtc(crtc);
-	vbl->request.signal = (unsigned long)event;
+	vbl.request.sequence = common_drm_msc_to_frame(crtc, *msc);
+	vbl.request.signal = (unsigned long)event;
 
 	if (nextonmiss)
-		vbl->request.type |= DRM_VBLANK_NEXTONMISS;
+		vbl.request.type |= DRM_VBLANK_NEXTONMISS;
 
-	ret = drmWaitVBlank(drm->fd, vbl);
+	ret = drmWaitVBlank(drm->fd, &vbl);
 	if (ret)
 		xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
 			   "%s: %s failed: %s\n", func,
 			   __FUNCTION__, strerror(errno));
+	else
+		*msc = common_drm_frame_to_msc(crtc, vbl.reply.sequence);
 
 	return ret;
 }
diff --git a/src/common_drm.h b/src/common_drm.h
index 647ed1b..f187c32 100644
--- a/src/common_drm.h
+++ b/src/common_drm.h
@@ -34,9 +34,9 @@ struct common_drm_info {
 	struct common_drm_event *flip_event;
 	xf86CrtcPtr flip_ref_crtc;
 	unsigned int flip_count;
-	unsigned int flip_frame;
 	unsigned int flip_tv_sec;
 	unsigned int flip_tv_usec;
+	uint64_t flip_msc;
 	uint32_t flip_old_fb_id;
 
 	Bool has_hw_cursor;
@@ -59,7 +59,7 @@ struct common_drm_info {
 struct common_drm_event {
 	struct common_drm_info *drm;
 	xf86CrtcPtr crtc;
-	void (*handler)(struct common_drm_event *, unsigned int frame,
+	void (*handler)(struct common_drm_event *, uint64_t msc,
 			unsigned int tv_sec, unsigned int tv_usec);
 };
 
diff --git a/src/common_drm_dri2.c b/src/common_drm_dri2.c
index 95f44f5..30fbf80 100644
--- a/src/common_drm_dri2.c
+++ b/src/common_drm_dri2.c
@@ -64,7 +64,7 @@ static Bool common_dri2_add_reslist(XID id, RESTYPE type,
 	return TRUE;
 }
 
-static void common_dri2_event(struct common_drm_event *event, unsigned frame,
+static void common_dri2_event(struct common_drm_event *event, uint64_t msc,
 	unsigned tv_sec, unsigned tv_usec)
 {
 	struct common_dri2_wait *wait = container_of(event, struct common_dri2_wait, base);
@@ -74,7 +74,7 @@ static void common_dri2_event(struct common_drm_event *event, unsigned frame,
 	    dixLookupDrawable(&draw, wait->drawable_id, serverClient, M_ANY,
 			      DixWriteAccess) == Success) {
 		if (wait->event_func) {
-			wait->event_func(wait, draw, frame, tv_sec, tv_usec);
+			wait->event_func(wait, draw, msc, tv_sec, tv_usec);
 			return;
 		}
 
@@ -282,10 +282,10 @@ int common_dri2_GetMSC(DrawablePtr draw, CARD64 *ust, CARD64 *msc)
 }
 
 static void common_dri2_waitmsc(struct common_dri2_wait *wait,
-	DrawablePtr draw, unsigned frame, unsigned tv_sec, unsigned tv_usec)
+	DrawablePtr draw, uint64_t msc, unsigned tv_sec, unsigned tv_usec)
 {
 	if (wait->client)
-		DRI2WaitMSCComplete(wait->client, draw, frame, tv_sec, tv_usec);
+		DRI2WaitMSCComplete(wait->client, draw, msc, tv_sec, tv_usec);
 	common_dri2_wait_free(wait);
 }
 
@@ -296,8 +296,7 @@ Bool common_dri2_ScheduleWaitMSC(ClientPtr client, DrawablePtr draw,
 	ScrnInfoPtr pScrn = xf86ScreenToScrn(draw->pScreen);
 	xf86CrtcPtr crtc;
 	struct common_dri2_wait *wait;
-	drmVBlank vbl;
-	CARD64 cur_msc;
+	CARD64 cur_msc, cur_ust;
 	int ret;
 
 	/*
@@ -319,12 +318,9 @@ Bool common_dri2_ScheduleWaitMSC(ClientPtr client, DrawablePtr draw,
 	wait->event_func = common_dri2_waitmsc;
 
 	/* Get current count */
-	ret = common_drm_vblank_get(pScrn, crtc, &vbl, __FUNCTION__);
-	if (ret)
+	if (common_drm_get_msc(crtc, &cur_ust, &cur_msc) != Success)
 		goto del_wait;
 
-	cur_msc = vbl.reply.sequence;
-
 	/*
 	 * If the divisor is zero, or cur_msc is smaller than target_msc, we
 	 * just need to make sure target_msc passes before waking up the client.
@@ -332,15 +328,13 @@ Bool common_dri2_ScheduleWaitMSC(ClientPtr client, DrawablePtr draw,
 	if (divisor == 0 || cur_msc < target_msc) {
 		if (cur_msc >= target_msc)
 			target_msc = cur_msc;
-
-		vbl.request.sequence = target_msc;
 	} else {
 		/*
 		 * If we get here, target_msc has already passed or we
 		 * don't have one, so queue an event that will satisfy
 		 * the divisor/remainder equation.
 		 */
-		vbl.request.sequence = cur_msc - (cur_msc % divisor) + remainder;
+		target_msc = cur_msc - (cur_msc % divisor) + remainder;
 
 		/*
 		 * If calculated remainder is larger than requested
@@ -349,15 +343,15 @@ Bool common_dri2_ScheduleWaitMSC(ClientPtr client, DrawablePtr draw,
 		 * the next time that will happen.
 		 */
 		if ((cur_msc & divisor) >= remainder)
-			vbl.request.sequence += divisor;
+			target_msc += divisor;
 	}
 
-	ret = common_drm_vblank_queue_event(pScrn, crtc, &vbl, __FUNCTION__,
-					    FALSE, &wait->base);
+	ret = common_drm_queue_msc_event(pScrn, crtc, &target_msc, __FUNCTION__,
+					 FALSE, &wait->base);
 	if (ret)
 		goto del_wait;
 
-	wait->frame = vbl.reply.sequence;
+	wait->frame = target_msc;
 	DRI2BlockClient(client, draw);
 	return TRUE;
 
diff --git a/src/common_drm_dri2.h b/src/common_drm_dri2.h
index 2495269..4ca1d6c 100644
--- a/src/common_drm_dri2.h
+++ b/src/common_drm_dri2.h
@@ -33,7 +33,7 @@ struct common_dri2_wait {
 
 	struct common_dri2_wait *next;
 	void (*event_func)(struct common_dri2_wait *wait, DrawablePtr draw,
-			   unsigned frame, unsigned tv_sec, unsigned tv_usec);
+			   uint64_t msc, unsigned tv_sec, unsigned tv_usec);
 	enum common_dri2_event_type type;
 	int frame;
 
diff --git a/src/common_drm_helper.h b/src/common_drm_helper.h
index 7b59033..e8704c6 100644
--- a/src/common_drm_helper.h
+++ b/src/common_drm_helper.h
@@ -15,8 +15,8 @@ int common_drm_vblank_get(ScrnInfoPtr pScrn, xf86CrtcPtr crtc,
 
 int common_drm_get_msc(xf86CrtcPtr crtc, uint64_t *ust, uint64_t *msc);
 
-int common_drm_vblank_queue_event(ScrnInfoPtr pScrn, xf86CrtcPtr crtc,
-	drmVBlank *vbl, const char *func, Bool nextonmiss,
+int common_drm_queue_msc_event(ScrnInfoPtr pScrn, xf86CrtcPtr crtc,
+	uint64_t *msc, const char *func, Bool nextonmiss,
 	struct common_drm_event *event);
 
 int common_drm_vblank_wait(ScrnInfoPtr pScrn, xf86CrtcPtr crtc,