source: grub-pc/trunk/fuentes/grub-core/kern/sparc64/ieee1275/ieee1275.c @ 22

Last change on this file since 22 was 22, checked in by mabarracus, 4 years ago

updated version and apply net.ifnames=0 into debian/rules

File size: 2.5 KB
Line 
1/*
2 *  GRUB  --  GRand Unified Bootloader
3 *  Copyright (C) 2009  Free Software Foundation, Inc.
4 *
5 *  GRUB is free software: you can redistribute it and/or modify
6 *  it under the terms of the GNU General Public License as published by
7 *  the Free Software Foundation, either version 3 of the License, or
8 *  (at your option) any later version.
9 *
10 *  GRUB is distributed in the hope that it will be useful,
11 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 *  GNU General Public License for more details.
14 *
15 *  You should have received a copy of the GNU General Public License
16 *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
17 */
18
19#include <grub/ieee1275/ieee1275.h>
20#include <grub/types.h>
21
22/* Sun specific ieee1275 interfaces used by GRUB.  */
23
24int
25grub_ieee1275_claim_vaddr (grub_addr_t vaddr, grub_size_t size)
26{
27  struct claim_vaddr_args
28  {
29    struct grub_ieee1275_common_hdr common;
30    grub_ieee1275_cell_t method;
31    grub_ieee1275_cell_t ihandle;
32    grub_ieee1275_cell_t align;
33    grub_ieee1275_cell_t size;
34    grub_ieee1275_cell_t virt;
35    grub_ieee1275_cell_t catch_result;
36  }
37  args;
38
39  INIT_IEEE1275_COMMON (&args.common, "call-method", 5, 2);
40  args.method = (grub_ieee1275_cell_t) "claim";
41  args.ihandle = grub_ieee1275_mmu;
42  args.align = 0;
43  args.size = size;
44  args.virt = vaddr;
45  args.catch_result = (grub_ieee1275_cell_t) -1;
46
47  if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
48    return -1;
49  return args.catch_result;
50}
51
52int
53grub_ieee1275_alloc_physmem (grub_addr_t *paddr, grub_size_t size,
54                             grub_uint32_t align)
55{
56  grub_uint32_t memory_ihandle;
57  struct alloc_physmem_args
58  {
59    struct grub_ieee1275_common_hdr common;
60    grub_ieee1275_cell_t method;
61    grub_ieee1275_cell_t ihandle;
62    grub_ieee1275_cell_t align;
63    grub_ieee1275_cell_t size;
64    grub_ieee1275_cell_t catch_result;
65    grub_ieee1275_cell_t phys_high;
66    grub_ieee1275_cell_t phys_low;
67  }
68  args;
69  grub_ssize_t actual = 0;
70
71  grub_ieee1275_get_property (grub_ieee1275_chosen, "memory",
72                              &memory_ihandle, sizeof (memory_ihandle),
73                              &actual);
74  if (actual != sizeof (memory_ihandle))
75    return -1;
76
77  if (!align)
78    align = 1;
79
80  INIT_IEEE1275_COMMON (&args.common, "call-method", 4, 3);
81  args.method = (grub_ieee1275_cell_t) "claim";
82  args.ihandle = memory_ihandle;
83  args.align = (align ? align : 1);
84  args.size = size;
85  if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
86    return -1;
87
88  *paddr = args.phys_low;
89
90  return args.catch_result;
91}
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