Lines Matching refs:ring_info
75 hv_get_next_write_location(struct hv_ring_buffer_info *ring_info) in hv_get_next_write_location() argument
77 u32 next = ring_info->ring_buffer->write_index; in hv_get_next_write_location()
84 hv_set_next_write_location(struct hv_ring_buffer_info *ring_info, in hv_set_next_write_location() argument
87 ring_info->ring_buffer->write_index = next_write_location; in hv_set_next_write_location()
92 hv_get_ring_buffersize(const struct hv_ring_buffer_info *ring_info) in hv_get_ring_buffersize() argument
94 return ring_info->ring_datasize; in hv_get_ring_buffersize()
99 hv_get_ring_bufferindices(struct hv_ring_buffer_info *ring_info) in hv_get_ring_bufferindices() argument
101 return (u64)ring_info->ring_buffer->write_index << 32; in hv_get_ring_bufferindices()
109 struct hv_ring_buffer_info *ring_info, in hv_copyto_ringbuffer() argument
114 void *ring_buffer = hv_get_ring_buffer(ring_info); in hv_copyto_ringbuffer()
115 u32 ring_buffer_size = hv_get_ring_buffersize(ring_info); in hv_copyto_ringbuffer()
150 int hv_ringbuffer_get_debuginfo(struct hv_ring_buffer_info *ring_info, in hv_ringbuffer_get_debuginfo() argument
156 mutex_lock(&ring_info->ring_buffer_mutex); in hv_ringbuffer_get_debuginfo()
158 if (!ring_info->ring_buffer) { in hv_ringbuffer_get_debuginfo()
159 mutex_unlock(&ring_info->ring_buffer_mutex); in hv_ringbuffer_get_debuginfo()
163 hv_get_ringbuffer_availbytes(ring_info, in hv_ringbuffer_get_debuginfo()
168 debug_info->current_read_index = ring_info->ring_buffer->read_index; in hv_ringbuffer_get_debuginfo()
169 debug_info->current_write_index = ring_info->ring_buffer->write_index; in hv_ringbuffer_get_debuginfo()
171 = ring_info->ring_buffer->interrupt_mask; in hv_ringbuffer_get_debuginfo()
172 mutex_unlock(&ring_info->ring_buffer_mutex); in hv_ringbuffer_get_debuginfo()
186 int hv_ringbuffer_init(struct hv_ring_buffer_info *ring_info, in hv_ringbuffer_init() argument
209 ring_info->ring_buffer = (struct hv_ring_buffer *) in hv_ringbuffer_init()
214 if (!ring_info->ring_buffer) in hv_ringbuffer_init()
221 memset(ring_info->ring_buffer, 0, HV_HYP_PAGE_SIZE); in hv_ringbuffer_init()
223 ring_info->ring_buffer->read_index = in hv_ringbuffer_init()
224 ring_info->ring_buffer->write_index = 0; in hv_ringbuffer_init()
227 ring_info->ring_buffer->feature_bits.value = 1; in hv_ringbuffer_init()
229 ring_info->ring_size = page_cnt << PAGE_SHIFT; in hv_ringbuffer_init()
230 ring_info->ring_size_div10_reciprocal = in hv_ringbuffer_init()
231 reciprocal_value(ring_info->ring_size / 10); in hv_ringbuffer_init()
232 ring_info->ring_datasize = ring_info->ring_size - in hv_ringbuffer_init()
234 ring_info->priv_read_index = 0; in hv_ringbuffer_init()
238 ring_info->pkt_buffer = kzalloc(max_pkt_size, GFP_KERNEL); in hv_ringbuffer_init()
239 if (!ring_info->pkt_buffer) in hv_ringbuffer_init()
241 ring_info->pkt_buffer_size = max_pkt_size; in hv_ringbuffer_init()
244 spin_lock_init(&ring_info->ring_lock); in hv_ringbuffer_init()
250 void hv_ringbuffer_cleanup(struct hv_ring_buffer_info *ring_info) in hv_ringbuffer_cleanup() argument
252 mutex_lock(&ring_info->ring_buffer_mutex); in hv_ringbuffer_cleanup()
253 vunmap(ring_info->ring_buffer); in hv_ringbuffer_cleanup()
254 ring_info->ring_buffer = NULL; in hv_ringbuffer_cleanup()
255 mutex_unlock(&ring_info->ring_buffer_mutex); in hv_ringbuffer_cleanup()
257 kfree(ring_info->pkt_buffer); in hv_ringbuffer_cleanup()
258 ring_info->pkt_buffer = NULL; in hv_ringbuffer_cleanup()
259 ring_info->pkt_buffer_size = 0; in hv_ringbuffer_cleanup()