49 static void host1x_pushbuffer_destroy(struct push_buffer *pb)  in host1x_pushbuffer_destroy()  argument
51 	struct host1x_cdma *cdma = pb_to_cdma(pb);  in host1x_pushbuffer_destroy()
54 	if (pb->phys != 0)  in host1x_pushbuffer_destroy()
55 		dma_free_writecombine(host1x->dev, pb->size_bytes + 4,  in host1x_pushbuffer_destroy()
56 				      pb->mapped, pb->phys);  in host1x_pushbuffer_destroy()
58 	pb->mapped = NULL;  in host1x_pushbuffer_destroy()
59 	pb->phys = 0;  in host1x_pushbuffer_destroy()
65 static int host1x_pushbuffer_init(struct push_buffer *pb)  in host1x_pushbuffer_init()  argument
67 	struct host1x_cdma *cdma = pb_to_cdma(pb);  in host1x_pushbuffer_init()
70 	pb->mapped = NULL;  in host1x_pushbuffer_init()
71 	pb->phys = 0;  in host1x_pushbuffer_init()
72 	pb->size_bytes = HOST1X_PUSHBUFFER_SLOTS * 8;  in host1x_pushbuffer_init()
75 	pb->fence = pb->size_bytes - 8;  in host1x_pushbuffer_init()
76 	pb->pos = 0;  in host1x_pushbuffer_init()
79 	pb->mapped = dma_alloc_writecombine(host1x->dev, pb->size_bytes + 4,  in host1x_pushbuffer_init()
80 					    &pb->phys, GFP_KERNEL);  in host1x_pushbuffer_init()
81 	if (!pb->mapped)  in host1x_pushbuffer_init()
84 	host1x_hw_pushbuffer_init(host1x, pb);  in host1x_pushbuffer_init()
89 	host1x_pushbuffer_destroy(pb);  in host1x_pushbuffer_init()
97 static void host1x_pushbuffer_push(struct push_buffer *pb, u32 op1, u32 op2)  in host1x_pushbuffer_push()  argument
99 	u32 pos = pb->pos;  in host1x_pushbuffer_push()
100 	u32 *p = (u32 *)((void *)pb->mapped + pos);  in host1x_pushbuffer_push()
101 	WARN_ON(pos == pb->fence);  in host1x_pushbuffer_push()
104 	pb->pos = (pos + 8) & (pb->size_bytes - 1);  in host1x_pushbuffer_push()
111 static void host1x_pushbuffer_pop(struct push_buffer *pb, unsigned int slots)  in host1x_pushbuffer_pop()  argument
114 	pb->fence = (pb->fence + slots * 8) & (pb->size_bytes - 1);  in host1x_pushbuffer_pop()
120 static u32 host1x_pushbuffer_space(struct push_buffer *pb)  in host1x_pushbuffer_space()  argument
122 	return ((pb->fence - pb->pos) & (pb->size_bytes - 1)) / 8;  in host1x_pushbuffer_space()
142 			struct push_buffer *pb = &cdma->push_buffer;  in host1x_cdma_wait_locked()  local
143 			space = host1x_pushbuffer_space(pb);  in host1x_cdma_wait_locked()
249 			struct push_buffer *pb = &cdma->push_buffer;  in update_cdma_locked()  local
250 			host1x_pushbuffer_pop(pb, job->num_slots);  in update_cdma_locked()
386 	struct push_buffer *pb = &cdma->push_buffer;  in host1x_cdma_deinit()  local
394 	host1x_pushbuffer_destroy(pb);  in host1x_cdma_deinit()
439 	struct push_buffer *pb = &cdma->push_buffer;  in host1x_cdma_push()  local
453 	host1x_pushbuffer_push(pb, op1, op2);  in host1x_cdma_push()