dev/drm/savage_bci.c

114  * The BIOSresets the event tag to 0 on mode changes. Therefore we
115  * never emit 0 to the event tag. If we find a 0 event tag we know the
119  * Note: if the Xserver uses the event tag it has to follow the same
246 	uint16_t event;
252 		event = dev_priv->status_ptr[1] & 0xffff;
254 		event = SAVAGE_READ(SAVAGE_STATUS_WORD1) & 0xffff;
256 	if (event > dev_priv->event_counter)
259 	DRM_DEBUG("   tail=0x%04x %d\n", tail->age.event, tail->age.wrap);
260 	DRM_DEBUG("   head=0x%04x %d\n", event, wrap);
262 	if (tail->buf && (TEST_AGE(&tail->age, event, wrap) || event == 0)) {
280 	DRM_DEBUG("age=0x%04x wrap=%d\n", entry->age.event, entry->age.wrap);
324 	uint16_t event;
326 	event = savage_bci_emit_event(dev_priv, 0);
329 		SET_AGE(&dev_priv->dma_pages[i].age, event, wrap);
333 	SET_AGE(&dev_priv->last_dma_age, event, wrap);
339 	uint16_t event;
348 		event = dev_priv->status_ptr[1] & 0xffff;
350 		event = SAVAGE_READ(SAVAGE_STATUS_WORD1) & 0xffff;
352 	if (event > dev_priv->event_counter)
357 	     dev_priv->dma_pages[page].age.event > event)) {
359 					dev_priv->dma_pages[page].age.event)
425 	uint16_t event;
476 	event = savage_bci_emit_event(dev_priv, 0);
479 		SET_AGE(&dev_priv->dma_pages[i].age, event, wrap);
485 		SET_AGE(&dev_priv->dma_pages[cur].age, event, wrap);
497 	SET_AGE(&dev_priv->last_dma_age, event, wrap);
952 	drm_savage_event_emit_t *event = data;
958 	event->count = savage_bci_emit_event(dev_priv, event->flags);
959 	event->count |= dev_priv->event_wrap << 16;
967 	drm_savage_event_wait_t *event = data;
982 	event_e = event->count & 0xffff;
983 	event_w = event->count >> 16;
986 	 * - event counter wrapped since the event was emitted or
987 	 * - the hardware has advanced up to or over the event to wait for.
1077 			uint16_t event;
1079 			event = savage_bci_emit_event(dev_priv, SAVAGE_WAIT_3D);
1080 			SET_AGE(&buf_priv->age, event, dev_priv->event_wrap);