osfmk/ppc/savearea.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 #ifndef _PPC_SAVEAREA_H_
  23 #define _PPC_SAVEAREA_H_
  24
  25 #include <ppc/exception.h>
  26 #include <mach/ppc/vm_types.h>
  27
  28 void                    save_release(struct savearea *save);    /* Release a save area  */
  29 struct savectl  *save_dequeue(void);                    /* Find and dequeue one that is all empty */
  30 unsigned int    save_queue(vm_offset_t);                /* Add a new savearea block to the free list */
  31 struct savearea *save_get(void);                                /* Obtains a savearea from the free list (returns virtual address) */
  32 struct savearea *save_get_phys(void);                   /* Obtains a savearea from the free list (returns physical address) */
  33 struct savearea *save_alloc(void);                              /* Obtains a savearea and allocates blocks if needed */
  34 struct savearea *save_cpv(struct savearea *);   /* Converts a physical savearea address to virtual */
  35 unsigned int    *save_deb(unsigned int *msr);   /* Finds virtual of first free block and disableds interrupts */
  36 void                    save_ret(struct savearea *);    /* Returns a savearea to the free list */
  37 void                    save_free_dump(void);                   /* Dump the free chain */
  38 void                    DumpTheSave(struct savearea *); /* Prints out a savearea */
  39 void                    DumpBackChain(struct savearea *save); /* Dumps a backchain */
  40
  41 #endif /* _PPC_SAVEAREA_H_ */
  42
  43