Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2)  * This file is subject to the terms and conditions of the GNU General Public
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * License.  See the file "COPYING" in the main directory of this archive
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  * for more details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * Copyright (c) 2000 Silicon Graphics, Inc.  All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * Copyright (c) 2002 NEC Corp.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  * Copyright (c) 2002 Erich Focht <efocht@ess.nec.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  * Copyright (c) 2002 Kimio Suganuma <k-suganuma@da.jp.nec.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #ifndef _ASM_IA64_NODEDATA_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #define _ASM_IA64_NODEDATA_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/numa.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <asm/percpu.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <asm/mmzone.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #ifdef CONFIG_NUMA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)  * Node Data. One of these structures is located on each node of a NUMA system.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) struct pglist_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) struct ia64_node_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	short			active_cpu_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	short			node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	struct pglist_data	*pg_data_ptrs[MAX_NUMNODES];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)  * Return a pointer to the node_data structure for the executing cpu.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define local_node_data		(local_cpu_data->node_data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)  * Given a node id, return a pointer to the pg_data_t for the node.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)  * NODE_DATA 	- should be used in all code not related to system
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)  *		  initialization. It uses pernode data structures to minimize
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)  *		  offnode memory references. However, these structure are not 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)  *		  present during boot. This macro can be used once cpu_init
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)  *		  completes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define NODE_DATA(nid)		(local_node_data->pg_data_ptrs[nid])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)  * LOCAL_DATA_ADDR - This is to calculate the address of other node's
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)  *		     "local_node_data" at hot-plug phase. The local_node_data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)  *		     is pointed by per_cpu_page. Kernel usually use it for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)  *		     just executing cpu. However, when new node is hot-added,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)  *		     the addresses of local data for other nodes are necessary
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)  *		     to update all of them.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #define LOCAL_DATA_ADDR(pgdat)  			\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 	((struct ia64_node_data *)((u64)(pgdat) + 	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 				   L1_CACHE_ALIGN(sizeof(struct pglist_data))))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #endif /* CONFIG_NUMA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #endif /* _ASM_IA64_NODEDATA_H */