Return to pmap.h CVS log

Up to [local] / sys / arch / m88k / include

Import of OpenBSD 4.2 release kernel tree with initial code to support 
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO

Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)

/*	$OpenBSD: pmap.h,v 1.9 2005/12/11 21:45:28 miod Exp $	*/
/*
 * Mach Operating System
 * Copyright (c) 1991 Carnegie Mellon University
 * Copyright (c) 1991 OMRON Corporation
 * All Rights Reserved.
 *
 * Permission to use, copy, modify and distribute this software and its
 * documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 *
 */
#ifndef _M88K_PMAP_H_
#define _M88K_PMAP_H_

#include <machine/mmu.h>

/*
 * PMAP structure
 */

struct pmap {
	sdt_entry_t		*pm_stab;	/* virtual pointer to sdt */
	apr_t			 pm_apr;
	int			 pm_count;	/* reference count */
	/* cpus using of this pmap; NCPU must be <= 32 */
	u_int32_t		 pm_cpus;
#ifdef MULTIPROCESSOR
	__cpu_simple_lock_t	 pm_lock;
#endif
	struct pmap_statistics	pm_stats;	/* pmap statistics */
};

/* 	The PV (Physical to virtual) List.
 *
 * For each vm_page_t, pmap keeps a list of all currently valid virtual
 * mappings of that page. An entry is a pv_entry_t; the list is the
 * pv_head_table. This is used by things like pmap_remove, when we must
 * find and remove all mappings for a particular physical page.
 */
/* XXX - struct pv_entry moved to vmparam.h because of include ordering issues */

typedef struct pmap *pmap_t;
typedef struct pv_entry *pv_entry_t;

#ifdef	_KERNEL

extern	pmap_t		kernel_pmap;
extern	struct pmap	kernel_pmap_store;
extern	caddr_t		vmmap;

#define	pmap_kernel()			(&kernel_pmap_store)
#define pmap_resident_count(pmap)	((pmap)->pm_stats.resident_count)
#define	pmap_wired_count(pmap)		((pmap)->pm_stats.wired_count)
#define pmap_phys_address(frame)        ((paddr_t)(ptoa(frame)))

#define pmap_copy(dp,sp,d,l,s)		do { /* nothing */ } while (0)
#define pmap_update(pmap)		do { /* nothing (yet) */ } while (0)

#define	pmap_clear_modify(pg)		pmap_unsetbit(pg, PG_M)
#define	pmap_clear_reference(pg)	pmap_unsetbit(pg, PG_U)

void	pmap_bootstrap(vaddr_t);
void	pmap_bootstrap_cpu(cpuid_t);
void	pmap_cache_ctrl(pmap_t, vaddr_t, vaddr_t, u_int);
void	pmap_proc_iflush(struct proc *, vaddr_t, vsize_t);
#define pmap_unuse_final(p)		/* nothing */
boolean_t pmap_unsetbit(struct vm_page *, int);

#endif	/* _KERNEL */

#endif /* _M88K_PMAP_H_ */