40 static uint32_t idx_occupied(uint32_t len, uint32_t a, uint32_t b)  in idx_occupied()  argument
43 	return (b > a) ? (len - (b - a)) : (a - b);  in idx_occupied()
46 static inline void cache_wb(void *data, size_t len, uint32_t flags)  in cache_wb()  argument
50 		sys_cache_data_flush_range(data, len);  in cache_wb()
54 static inline void cache_inv(void *data, size_t len, uint32_t flags)  in cache_inv()  argument
58 		sys_cache_data_invd_range(data, len);  in cache_inv()
89 	uint32_t len = blen - sizeof(struct spsc_pbuf_common);  in get_len()  local
93 		return len - sizeof(struct spsc_pbuf_ext_cache);  in get_len()
96 	return len - sizeof(struct spsc_pbuf_ext_nocache);  in get_len()
124 	pb->common.len = get_len(blen, flags);  in spsc_pbuf_init()
136 int spsc_pbuf_alloc(struct spsc_pbuf *pb, uint16_t len, char **buf)  in spsc_pbuf_alloc()  argument
139 	const uint32_t pblen = pb->common.len;  in spsc_pbuf_alloc()
145 	uint32_t space = len + LEN_SZ; /* data + length field */  in spsc_pbuf_alloc()
147 	if (len == 0 || len > SPSC_PBUF_MAX_LEN) {  in spsc_pbuf_alloc()
166 		if (len == SPSC_PBUF_MAX_LEN) {  in spsc_pbuf_alloc()
195 	len = MIN(len, MAX(free_space - (int32_t)LEN_SZ, 0));  in spsc_pbuf_alloc()
198 	return len;  in spsc_pbuf_alloc()
201 void spsc_pbuf_commit(struct spsc_pbuf *pb, uint16_t len)  in spsc_pbuf_commit()  argument
203 	if (len == 0) {  in spsc_pbuf_commit()
208 	const uint32_t pblen = pb->common.len;  in spsc_pbuf_commit()
215 	sys_put_be16(len, &data_loc[wr_idx]);  in spsc_pbuf_commit()
217 	cache_wb(&data_loc[wr_idx], len + LEN_SZ, flags);  in spsc_pbuf_commit()
219 	wr_idx += len + LEN_SZ;  in spsc_pbuf_commit()
228 int spsc_pbuf_write(struct spsc_pbuf *pb, const char *buf, uint16_t len)  in spsc_pbuf_write()  argument
233 	if (len >= SPSC_PBUF_MAX_LEN) {  in spsc_pbuf_write()
237 	outlen = spsc_pbuf_alloc(pb, len, &pbuf);  in spsc_pbuf_write()
238 	if (outlen != len) {  in spsc_pbuf_write()
242 	memcpy(pbuf, buf, len);  in spsc_pbuf_write()
244 	spsc_pbuf_commit(pb, len);  in spsc_pbuf_write()
246 	return len;  in spsc_pbuf_write()
252 	const uint32_t pblen = pb->common.len;  in spsc_pbuf_claim()
282 	uint16_t len;  in spsc_pbuf_claim()  local
305 		cache_inv(&data_loc[rd_idx], sizeof(len), flags);  in spsc_pbuf_claim()
308 	len = sys_get_be16(&data_loc[rd_idx]);  in spsc_pbuf_claim()
311 	__ASSERT_NO_MSG(bytes_stored >= (len + LEN_SZ));  in spsc_pbuf_claim()
313 	cache_inv(&data_loc[rd_idx + LEN_SZ], len, flags);  in spsc_pbuf_claim()
316 	return len;  in spsc_pbuf_claim()
319 void spsc_pbuf_free(struct spsc_pbuf *pb, uint16_t len)  in spsc_pbuf_free()  argument
322 	const uint32_t pblen = pb->common.len;  in spsc_pbuf_free()
326 	uint16_t rd_idx = *rd_idx_loc + len + LEN_SZ;  in spsc_pbuf_free()
352 int spsc_pbuf_read(struct spsc_pbuf *pb, char *buf, uint16_t len)  in spsc_pbuf_read()  argument
365 	if (len < plen) {  in spsc_pbuf_read()