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     ˆÂÁƒ¬µÀ¿Ã Æ    /* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright Â© 1999-2010 David Woodhouse <dwmw2@infradead.org>
 */

#ifndef __MTD_NFTL_H__
#define __MTD_NFTL_H__

#include <linux/mtd/mtd.h>
#include <linux/mtd/blktrans.h>

#include <mtd/nftl-user.h>

/* these info are used in ReplUnitTable */
#define BLOCK_NIL          0xffff /* last block of a chain */
#define BLOCK_FREE         0xfffe /* free block */
#define BLOCK_NOTEXPLORED  0xfffd /* non explored block, only used during mounting */
#define BLOCK_RESERVED     0xfffc /* bios block or bad block */

struct NFTLrecord {
	struct mtd_blktrans_dev mbd;
	__u16 MediaUnit, SpareMediaUnit;
	__u32 EraseSize;
	struct NFTLMediaHeader MediaHdr;
	int usecount;
	unsigned char heads;
	unsigned char sectors;
	unsigned short cylinders;
	__u16 numvunits;
	__u16 lastEUN;                  /* should be suppressed */
	__u16 numfreeEUNs;
	__u16 LastFreeEUN; 		/* To speed up finding a free EUN */
	int head,sect,cyl;
	__u16 *EUNtable; 		/* [numvunits]: First EUN for each virtual unit  */
	__u16 *ReplUnitTable; 		/* [numEUNs]: ReplUnitNumber for each */
        unsigned int nb_blocks;		/* number of physical blocks */
        unsigned int nb_boot_blocks;	/* number of blocks used by the bios */
        struct erase_info instr;
};

int NFTL_mount(struct NFTLrecord *s);
int NFTL_formatblock(struct NFTLrecord *s, int block);

int nftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len,
		  size_t *retlen, uint8_t *buf);
int nftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len,
		   size_t *retlen, uint8_t *buf);

#ifndef NFTL_MAJOR
#define NFTL_MAJOR 93
#endif

#define MAX_NFTLS 16
#define MAX_SECTORS_PER_UNIT 64
#define NFTL_PARTN_BITS 4

#endif /* __MTD_NFTL_H__ */
     ˆÂÁƒuÑ9À¿Ã .    /*
 * include/linux/topology.h
 *
 * Written by: Matthew Dobson, IBM Corporation
 *
 * Copyright (C) 2002, IBM Corp.
 *
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
 * NON INFRINGEMENT.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * Send feedback to <colpatch@us.ibm.com>
 */
#ifndef _LINUX_TOPOLOGY_H
#define _LINUX_TOPOLOGY_H

#include <linux/arch_topology.h>
#include <linux/cpumask.h>
#include <linux/bitops.h>
#include <linux/mmzone.h>
#include <linux/smp.h>
#include <linux/percpu.h>
#include <asm/topology.h>

#ifndef nr_cpus_node
#define nr_cpus_node(node) cpumask_weight(cpumask_of_node(node))
#endif

#define for_each_node_with_cpus(node)			\
	for_each_online_node(node)			\
		if (nr_cpus_node(node))

int arch_update_cpu_topology(void);

/* Conform to ACPI 2.0 SLIT distance definitions */
#define LOCAL_DISTANCE		10
#define REMOTE_DISTANCE		20
#define DISTANCE_BITS           8
#ifndef node_distance
#define node_distance(from,to)	((from) == (to) ? LOCAL_DISTANCE : REMOTE_DISTANCE)
#endif
#ifndef RECLAIM_DISTANCE
/*
 * If the distance between nodes in a system is larger than RECLAIM_DISTANCE
 * (in whatever arch specific measurement units returned by node_distance())
 * and node_reclaim_mode is enabled then the VM will only call node_reclaim()
 * on nodes within this distance.
 */
#define RECLAIM_DISTANCE 30
#endif

/*
 * The following tunable allows platforms to override the default node
 * reclaim distance (RECLAIM_DISTANCE) if remote memory accesses are
 * sufficiently fast that the default value actually hurts
 * performance.
 *
 * AMD EPYC machines use this because even though the 2-hop distance
 * is 32 (3.2x slow