Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Implement eisa_mem_{alloc,free}(), a method for allocating/freeing 

EISA bus physical address space.

This i386 implementation allocates system physical address space
after the end of RAM.
This commit is contained in:
thorpej 1996-10-21 23:12:56 +00:00
parent 546c8abcee
commit b84a8f42d9
2 changed files with 36 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
sys/arch/i386/eisa/eisa_machdep.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: eisa_machdep.c,v 1.4 1996/10/13 03:19:38 christos Exp $ */
/* $NetBSD: eisa_machdep.c,v 1.5 1996/10/21 23:12:56 thorpej Exp $ */
/*
* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
@ -40,8 +40,10 @@
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/device.h>
#include <sys/extent.h>
#include <i386/isa/icu.h>
#include <dev/isa/isareg.h>
#include <dev/isa/isavar.h>
#include <dev/eisa/eisavar.h>
@ -123,3 +125,31 @@ eisa_intr_disestablish(ec, cookie)
return isa_intr_disestablish(NULL, cookie);
}
int
eisa_mem_alloc(t, size, align, boundary, cacheable, addrp, bahp)
bus_space_tag_t t;
bus_size_t size, align;
bus_addr_t boundary;
int cacheable;
bus_addr_t *addrp;
bus_space_handle_t *bahp;
{
extern struct extent *iomem_ex;
/*
* Allocate physical address space after the ISA hole.
*/
return bus_space_alloc(t, IOM_END, iomem_ex->ex_end, size, align,
boundary, cacheable, addrp, bahp);
}
void
eisa_mem_free(t, bah, size)
bus_space_tag_t t;
bus_space_handle_t bah;
bus_size_t size;
{
bus_space_free(t, bah, size);
}

6
sys/arch/i386/eisa/eisa_machdep.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: eisa_machdep.h,v 1.2 1996/04/09 23:00:27 cgd Exp $ */
/* $NetBSD: eisa_machdep.h,v 1.3 1996/10/21 23:12:58 thorpej Exp $ */
/*
* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
@ -60,3 +60,7 @@ const char *eisa_intr_string __P((eisa_chipset_tag_t, eisa_intr_handle_t));
void *eisa_intr_establish __P((eisa_chipset_tag_t,
eisa_intr_handle_t, int, int, int (*)(void *), void *));
void eisa_intr_disestablish __P((eisa_chipset_tag_t, void *));
int eisa_mem_alloc __P((bus_space_tag_t, bus_size_t, bus_size_t,
bus_addr_t, int, bus_addr_t *, bus_space_handle_t *));
void eisa_mem_free __P((bus_space_tag_t, bus_space_handle_t,
bus_size_t));