drm2/i915/i915_dma.c

41 #define LP_RING(d) (&((struct drm_i915_private *)(d))->ring[RCS])
53  * Lock test for when it's just for synchronization of ring access.
56  * has access to the ring.
107 	struct intel_ring_buffer *ring = LP_RING(dev_priv);
114 	if (ring->status_page.gfx_addr) {
115 		ring->status_page.gfx_addr = 0;
128 	struct intel_ring_buffer *ring = LP_RING(dev_priv);
131 	 * We should never lose context on the ring with modesetting
137 	ring->head = I915_READ_HEAD(ring) & HEAD_ADDR;
138 	ring->tail = I915_READ_TAIL(ring) & TAIL_ADDR;
139 	ring->space = ring->head - (ring->tail + I915_RING_FREE_SPACE);
140 	if (ring->space < 0)
141 		ring->space += ring->size;
147 	if (ring->head == ring->tail && master_priv->sarea_priv)
165 		intel_cleanup_ring_buffer(&dev_priv->ring[i]);
223 	struct intel_ring_buffer *ring = LP_RING(dev_priv);
227 	if (ring->virtual_start == NULL) {
229 			  " ring buffer\n");
234 	if (!ring->status_page.page_addr) {
239 				ring->status_page.page_addr);
240 	if (ring->status_page.gfx_addr != 0)
241 		intel_ring_setup_status_page(ring);
767 	struct intel_ring_buffer *ring = LP_RING(dev_priv);
781 	if (ring->irq_get(ring)) {
784 			ret = -msleep(&ring->irq_queue, &dev_priv->irq_lock,
790 		ring->irq_put(ring);
802 /* Needs the lock as it touches the ring.
955 		value = intel_ring_initialized(&dev_priv->ring[VCS]);
958 		value = intel_ring_initialized(&dev_priv->ring[BCS]);
1052 	struct intel_ring_buffer *ring;
1072 	ring = LP_RING(dev_priv);
1073 	ring->status_page.gfx_addr = hws->addr & (0x1ffff<<12);
1080 		ring->status_page.gfx_addr = 0;
1087 	I915_WRITE(HWS_PGA, ring->status_page.gfx_addr);
1090 			 ring->status_page.gfx_addr);
1092 			 ring->status_page.page_addr);