File: [local] / sys / arch / solbourne / include / pmap.h (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:07:51 2008 UTC (16 years, 4 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
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)
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/* $OpenBSD: pmap.h,v 1.1 2005/04/19 21:30:18 miod Exp $ */
/*
* Copyright (c) 2005, Miodrag Vallat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _SOLBOURNE_PMAP_H_
#define _SOLBOURNE_PMAP_H_
#include <machine/pte.h>
/*
* PMAP structure
*/
struct pmap {
pd_entry_t *pm_segtab; /* first level table */
paddr_t pm_psegtab; /* pa of above */
int pm_refcount; /* reference count */
struct simplelock pm_lock;
struct pmap_statistics pm_stats; /* pmap statistics */
};
typedef struct pmap *pmap_t;
/*
* Extra constants passed in the low bits of pa in pmap_enter() to
* request specific memory attributes.
*/
#define PMAP_NC 1
#define PMAP_OBIO PMAP_NC
#define PMAP_BWS 2
/*
* Macro to pass iospace bits in the low bits of pa in pmap_enter().
* Provided for source code compatibility - we don't need such bits.
*/
#define PMAP_IOENC(x) 0
#ifdef _KERNEL
extern struct pmap kernel_pmap_store;
#define kvm_recache(addr, npages) kvm_setcache(addr, npages, 1)
#define kvm_uncache(addr, npages) kvm_setcache(addr, npages, 0)
#define pmap_copy(a,b,c,d,e) do { /* nothing */ } while (0)
#define pmap_deactivate(p) do { /* nothing */ } while (0)
#define pmap_kernel() (&kernel_pmap_store)
#define pmap_phys_address(frame) ptoa(frame)
#define pmap_resident_count(p) ((p)->pm_stats.resident_count)
#define pmap_update(p) do { /* nothing */ } while (0)
#define pmap_wired_count(p) ((p)->pm_stats.wired_count)
#define PMAP_PREFER(fo, ap) pmap_prefer((fo), (ap))
struct proc;
void kvm_setcache(caddr_t, int, int);
void switchexit(struct proc *); /* locore.s */
void pmap_activate(struct proc *);
void pmap_bootstrap(size_t);
void pmap_cache_enable(void);
void pmap_changeprot(pmap_t, vaddr_t, vm_prot_t, int);
boolean_t pmap_clear_modify(struct vm_page *);
boolean_t pmap_clear_reference(struct vm_page *);
void pmap_copy_page(struct vm_page *, struct vm_page *);
pmap_t pmap_create(void);
void pmap_destroy(pmap_t);
int pmap_enter(pmap_t, vaddr_t, paddr_t, vm_prot_t, int);
boolean_t pmap_extract(pmap_t, vaddr_t, paddr_t *);
void pmap_init(void);
boolean_t pmap_is_modified(struct vm_page *);
boolean_t pmap_is_referenced(struct vm_page *);
void pmap_kenter_pa(vaddr_t, paddr_t, vm_prot_t);
void pmap_kremove(vaddr_t, vsize_t);
vaddr_t pmap_map(vaddr_t, paddr_t, paddr_t, int);
int pmap_pa_exists(paddr_t);
void pmap_page_protect(struct vm_page *, vm_prot_t);
void pmap_prefer(vaddr_t, vaddr_t *);
void pmap_proc_iflush(struct proc *, vaddr_t, vsize_t);
void pmap_protect(pmap_t, vaddr_t, vaddr_t, vm_prot_t);
void pmap_reference(pmap_t);
void pmap_release(pmap_t);
void pmap_redzone(void);
void pmap_remove(pmap_t, vaddr_t, vaddr_t);
void pmap_unwire(pmap_t, vaddr_t);
void pmap_virtual_space(vaddr_t *, vaddr_t *);
void pmap_writetext(unsigned char *, int);
void pmap_zero_page(struct vm_page *);
#endif /* _KERNEL */
#endif /* _SOLBOURNE_PMAP_H_ */