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Annotation of sys/arch/m88k/include/pmap.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: pmap.h,v 1.9 2005/12/11 21:45:28 miod Exp $   */
                      2: /*
                      3:  * Mach Operating System
                      4:  * Copyright (c) 1991 Carnegie Mellon University
                      5:  * Copyright (c) 1991 OMRON Corporation
                      6:  * All Rights Reserved.
                      7:  *
                      8:  * Permission to use, copy, modify and distribute this software and its
                      9:  * documentation is hereby granted, provided that both the copyright
                     10:  * notice and this permission notice appear in all copies of the
                     11:  * software, derivative works or modified versions, and any portions
                     12:  * thereof, and that both notices appear in supporting documentation.
                     13:  *
                     14:  */
                     15: #ifndef _M88K_PMAP_H_
                     16: #define _M88K_PMAP_H_
                     17:
                     18: #include <machine/mmu.h>
                     19:
                     20: /*
                     21:  * PMAP structure
                     22:  */
                     23:
                     24: struct pmap {
                     25:        sdt_entry_t             *pm_stab;       /* virtual pointer to sdt */
                     26:        apr_t                    pm_apr;
                     27:        int                      pm_count;      /* reference count */
                     28:        /* cpus using of this pmap; NCPU must be <= 32 */
                     29:        u_int32_t                pm_cpus;
                     30: #ifdef MULTIPROCESSOR
                     31:        __cpu_simple_lock_t      pm_lock;
                     32: #endif
                     33:        struct pmap_statistics  pm_stats;       /* pmap statistics */
                     34: };
                     35:
                     36: /*     The PV (Physical to virtual) List.
                     37:  *
                     38:  * For each vm_page_t, pmap keeps a list of all currently valid virtual
                     39:  * mappings of that page. An entry is a pv_entry_t; the list is the
                     40:  * pv_head_table. This is used by things like pmap_remove, when we must
                     41:  * find and remove all mappings for a particular physical page.
                     42:  */
                     43: /* XXX - struct pv_entry moved to vmparam.h because of include ordering issues */
                     44:
                     45: typedef struct pmap *pmap_t;
                     46: typedef struct pv_entry *pv_entry_t;
                     47:
                     48: #ifdef _KERNEL
                     49:
                     50: extern pmap_t          kernel_pmap;
                     51: extern struct pmap     kernel_pmap_store;
                     52: extern caddr_t         vmmap;
                     53:
                     54: #define        pmap_kernel()                   (&kernel_pmap_store)
                     55: #define pmap_resident_count(pmap)      ((pmap)->pm_stats.resident_count)
                     56: #define        pmap_wired_count(pmap)          ((pmap)->pm_stats.wired_count)
                     57: #define pmap_phys_address(frame)        ((paddr_t)(ptoa(frame)))
                     58:
                     59: #define pmap_copy(dp,sp,d,l,s)         do { /* nothing */ } while (0)
                     60: #define pmap_update(pmap)              do { /* nothing (yet) */ } while (0)
                     61:
                     62: #define        pmap_clear_modify(pg)           pmap_unsetbit(pg, PG_M)
                     63: #define        pmap_clear_reference(pg)        pmap_unsetbit(pg, PG_U)
                     64:
                     65: void   pmap_bootstrap(vaddr_t);
                     66: void   pmap_bootstrap_cpu(cpuid_t);
                     67: void   pmap_cache_ctrl(pmap_t, vaddr_t, vaddr_t, u_int);
                     68: void   pmap_proc_iflush(struct proc *, vaddr_t, vsize_t);
                     69: #define pmap_unuse_final(p)            /* nothing */
                     70: boolean_t pmap_unsetbit(struct vm_page *, int);
                     71:
                     72: #endif /* _KERNEL */
                     73:
                     74: #endif /* _M88K_PMAP_H_ */