101 	primary->tail = 0;  in mga_do_dma_reset()
161 	u32 head, tail;  in mga_do_dma_flush()  local
174 	if ( primary->tail == primary->last_flush ) {  in mga_do_dma_flush()
179 	tail = primary->tail + dev_priv->primary->offset;  in mga_do_dma_flush()
194 	primary->last_flush = primary->tail;  in mga_do_dma_flush()
198 	if ( head <= tail ) {  in mga_do_dma_flush()
199 		primary->space = primary->size - primary->tail;  in mga_do_dma_flush()
201 		primary->space = head - tail;  in mga_do_dma_flush()
205 	DRM_DEBUG( "   tail = 0x%06lx\n", tail - dev_priv->primary->offset );  in mga_do_dma_flush()
209 	MGA_WRITE( MGA_PRIMEND, tail | MGA_PAGPXFER );  in mga_do_dma_flush()
217 	u32 head, tail;  in mga_do_dma_wrap_start()  local
230 	tail = primary->tail + dev_priv->primary->offset;  in mga_do_dma_wrap_start()
232 	primary->tail = 0;  in mga_do_dma_wrap_start()
246 	DRM_DEBUG( "   tail = 0x%06x\n", primary->tail );  in mga_do_dma_wrap_start()
251 	MGA_WRITE( MGA_PRIMEND, tail | MGA_PAGPXFER );  in mga_do_dma_wrap_start()
340 			dev_priv->tail = entry;  in mga_freelist_init()
366 	dev_priv->head = dev_priv->tail = NULL;  in mga_freelist_cleanup()
393 	drm_mga_freelist_t *tail = dev_priv->tail;  in mga_freelist_get()  local
401 		   tail->age.head ?  in mga_freelist_get()
402 		   tail->age.head - dev_priv->primary->offset : 0,  in mga_freelist_get()
403 		   tail->age.wrap );  in mga_freelist_get()
407 	if ( TEST_AGE( &tail->age, head, wrap ) ) {  in mga_freelist_get()
408 		prev = dev_priv->tail->prev;  in mga_freelist_get()
409 		next = dev_priv->tail;  in mga_freelist_get()
412 		dev_priv->tail = prev;  in mga_freelist_get()
437 		prev = dev_priv->tail;  in mga_freelist_put()
611 	dev_priv->prim.tail = 0;  in mga_do_init_dma()