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Added a prototype for the internal function _pmap_extract_pmeg, 

used by the bus_dma implementation when double-mapping pages
by hand.
Now define PMAP_OBMEM for completeness.
This commit is contained in:
fredette 2001-04-06 13:12:06 +00:00
parent 874e89c74d
commit d8d78f2801
1 changed files with 5 additions and 1 deletions
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6
sys/arch/sun2/include/pmap.h
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@ -1,4 +1,4 @@
/* $NetBSD: pmap.h,v 1.1 2001/03/29 04:44:20 fredette Exp $ */
/* $NetBSD: pmap.h,v 1.2 2001/04/06 13:12:06 fredette Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
@ -91,6 +91,9 @@ extern segsz_t pmap_wired_pages(pmap_t);
/* Map a given physical region to a virtual region */
extern vm_offset_t pmap_map __P((vm_offset_t, vm_offset_t, vm_offset_t, int));
/* Extract the PMEG for a given physical address. */
extern int _pmap_extract_pmeg __P((pmap_t, vm_offset_t));
/*
* Since PTEs also contain type bits, we have to have some way
* to tell pmap_enter `this is an IO page' or `this is not to
@ -100,6 +103,7 @@ extern vm_offset_t pmap_map __P((vm_offset_t, vm_offset_t, vm_offset_t, int));
* The values below must agree with pte.h such that:
* (PMAP_OBIO << PG_MOD_SHIFT) == PGT_OBIO
*/
#define PMAP_OBMEM 0x00
#define PMAP_OBIO 0x04 /* tells pmap_enter to use PG_OBIO */
#define PMAP_VME16 0x08 /* etc */
#define PMAP_MBMEM 0x08 /* etc (sun-2/120) */