40 #define PERSISTENT_RAM_SIG (0x43474244) /* DBGC */
57 	unsigned long flags = 0;  in buffer_start_add()
79 	unsigned long flags = 0;  in buffer_size_add()
104 	memset(prz->ecc_info.par, 0,  in persistent_ram_encode_rs8()
105 	       prz->ecc_info.ecc_size * sizeof(prz->ecc_info.par[0]));  in persistent_ram_encode_rs8()
106 	encode_rs8(prz->rs_decoder, data, len, prz->ecc_info.par, 0);  in persistent_ram_encode_rs8()
107 	for (i = 0; i < prz->ecc_info.ecc_size; i++)  in persistent_ram_encode_rs8()
116 	for (i = 0; i < prz->ecc_info.ecc_size; i++)  in persistent_ram_decode_rs8()
119 				NULL, 0, NULL, 0, NULL);  in persistent_ram_decode_rs8()
176 		if (numerr > 0) {  in persistent_ram_ecc_old()
179 		} else if (numerr < 0) {  in persistent_ram_ecc_old()
197 		return 0;  in persistent_ram_init_ecc()
202 	prz->ecc_info.poly = ecc_info->poly ?: 0x11d;  in persistent_ram_init_ecc()
221 	 * first consecutive root is 0  in persistent_ram_init_ecc()
225 				  0, 1, prz->ecc_info.ecc_size);  in persistent_ram_init_ecc()
240 	prz->corrected_bytes = 0;  in persistent_ram_init_ecc()
241 	prz->bad_blocks = 0;  in persistent_ram_init_ecc()
245 	if (numerr > 0) {  in persistent_ram_init_ecc()
248 	} else if (numerr < 0) {  in persistent_ram_init_ecc()
253 	return 0;  in persistent_ram_init_ecc()
262 		return 0;  in persistent_ram_ecc_string()
287 		-EFAULT : 0;  in persistent_ram_update_user()
312 	memcpy_fromio(prz->old_log + size - start, &buffer->data[0], start);  in persistent_ram_save_old()
336 		start = 0;  in persistent_ram_write()
348 	int rem, ret = 0, c = count;  in persistent_ram_write_user()
365 		start = 0;  in persistent_ram_write_user()
389 	prz->old_log_size = 0;  in persistent_ram_free_old()
394 	atomic_set(&prz->buffer->start, 0);  in persistent_ram_zap()
395 	atomic_set(&prz->buffer->size, 0);  in persistent_ram_zap()
399 #define MEM_TYPE_WCOMBINE	0
438 	for (i = 0; i < page_count; i++) {  in persistent_ram_vmap()
463 		pr_err("request mem region (%s 0x%llx@0x%llx) failed\n",  in persistent_ram_iomap()
495 		pr_err("%s: Failed to map 0x%llx pages at 0x%llx\n", __func__,  in persistent_ram_buffer_map()
503 	return 0;  in persistent_ram_buffer_map()
521 		if (buffer_size(prz) == 0 && buffer_start(prz) == 0) {  in persistent_ram_post_init()
523 			return 0;  in persistent_ram_post_init()
537 		pr_debug("no valid data in buffer (sig = 0x%08x)\n",  in persistent_ram_post_init()
547 	return 0;  in persistent_ram_post_init()
612 	pr_debug("attached %s 0x%zx@0x%llx: %zu header, %zu data, %zu ecc (%d/%d)\n",  in persistent_ram_new()