24 	struct msm_ringbuffer *ring;  in msm_ringbuffer_new()  local
31 	ring = kzalloc(sizeof(*ring), GFP_KERNEL);  in msm_ringbuffer_new()
32 	if (!ring) {  in msm_ringbuffer_new()
37 	ring->gpu = gpu;  in msm_ringbuffer_new()
38 	ring->id = id;  in msm_ringbuffer_new()
40 	ring->start = msm_gem_kernel_new(gpu->dev, MSM_GPU_RINGBUFFER_SZ,  in msm_ringbuffer_new()
41 		MSM_BO_WC, gpu->aspace, &ring->bo, NULL);  in msm_ringbuffer_new()
43 	if (IS_ERR(ring->start)) {  in msm_ringbuffer_new()
44 		ret = PTR_ERR(ring->start);  in msm_ringbuffer_new()
45 		ring->start = 0;  in msm_ringbuffer_new()
48 	ring->end   = ring->start + (MSM_GPU_RINGBUFFER_SZ >> 2);  in msm_ringbuffer_new()
49 	ring->next  = ring->start;  in msm_ringbuffer_new()
50 	ring->cur   = ring->start;  in msm_ringbuffer_new()
52 	ring->memptrs = memptrs;  in msm_ringbuffer_new()
53 	ring->memptrs_iova = memptrs_iova;  in msm_ringbuffer_new()
55 	INIT_LIST_HEAD(&ring->submits);  in msm_ringbuffer_new()
56 	spin_lock_init(&ring->lock);  in msm_ringbuffer_new()
58 	snprintf(name, sizeof(name), "gpu-ring-%d", ring->id);  in msm_ringbuffer_new()
60 	ring->fctx = msm_fence_context_alloc(gpu->dev, name);  in msm_ringbuffer_new()
62 	return ring;  in msm_ringbuffer_new()
65 	msm_ringbuffer_destroy(ring);  in msm_ringbuffer_new()
69 void msm_ringbuffer_destroy(struct msm_ringbuffer *ring)  in msm_ringbuffer_destroy()  argument
71 	if (IS_ERR_OR_NULL(ring))  in msm_ringbuffer_destroy()
74 	msm_fence_context_free(ring->fctx);  in msm_ringbuffer_destroy()
76 	if (ring->bo) {  in msm_ringbuffer_destroy()
77 		msm_gem_put_iova(ring->bo, ring->gpu->aspace);  in msm_ringbuffer_destroy()
78 		msm_gem_put_vaddr(ring->bo);  in msm_ringbuffer_destroy()
79 		drm_gem_object_put_unlocked(ring->bo);  in msm_ringbuffer_destroy()
81 	kfree(ring);  in msm_ringbuffer_destroy()