tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright (C) Paul Mackerras 1997.
3 * Copyright (C) Leigh Brown 2002.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version
8 * 2 of the License, or (at your option) any later version.
9 */
10
11#include "of1275.h"
12#include "nonstdio.h"
13
14extern ihandle of_prom_mmu;
15
16int
17map(unsigned int phys, unsigned int virt, unsigned int size)
18{
19 struct prom_args {
20 char *service;
21 int nargs;
22 int nret;
23 char *method;
24 ihandle mmu_ihandle;
25 int misc;
26 unsigned int size;
27 unsigned int virt;
28 unsigned int phys;
29 int ret0;
30 } args;
31
32 if (of_prom_mmu == 0) {
33 printf("map() called, no MMU found\n");
34 return -1;
35 }
36 args.service = "call-method";
37 args.nargs = 6;
38 args.nret = 1;
39 args.method = "map";
40 args.mmu_ihandle = of_prom_mmu;
41 args.misc = 0;
42 args.phys = phys;
43 args.virt = virt;
44 args.size = size;
45 (*of_prom_entry)(&args);
46
47 return (int)args.ret0;
48}