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* kern/sparc64/ieee1275/ieee1275.c: New file.

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* include/grub/sparc64/ieee1275/ieee1275.h (IEEE1275_MAP_WRITE,
	IEEE1275_MAP_READ, IEEE1275_MAP_EXEC, IEEE1275_MAP_LOCKED,
	IEEE1275_MAP_CACHED, IEEE1275_MAP_SE, IEEE1275_MAP_GLOBAL,
	IEEE1275_MAP_IE, IEEE1275_MAP_DEFAULT): Define.
	(grub_ieee1275_map_physical, grub_ieee1275_claim_vaddr,
	grub_ieee1275_alloc_physmem): Declare new exported functions.
This commit is contained in:
davem 2009-04-13 07:06:09 +00:00
parent 91c88b1219
commit 234022fe7b
4 changed files with 157 additions and 0 deletions
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124
kern/sparc64/ieee1275/ieee1275.c Normal file
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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2009 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/ieee1275/ieee1275.h>
#include <grub/types.h>
/* Sun specific ieee1275 interfaces used by GRUB. */
int
grub_ieee1275_map_physical (grub_addr_t paddr, grub_addr_t vaddr,
grub_size_t size, grub_uint32_t mode)
{
struct map_physical_args
{
struct grub_ieee1275_common_hdr common;
grub_ieee1275_cell_t method;
grub_ieee1275_cell_t ihandle;
grub_ieee1275_cell_t mode;
grub_ieee1275_cell_t size;
grub_ieee1275_cell_t virt;
grub_ieee1275_cell_t phys_high;
grub_ieee1275_cell_t phys_low;
grub_ieee1275_cell_t catch_result;
}
args;
INIT_IEEE1275_COMMON (&args.common, "call-method", 7, 1);
args.method = (grub_ieee1275_cell_t) "map";
args.ihandle = grub_ieee1275_mmu;
args.mode = mode;
args.size = size;
args.virt = vaddr;
args.phys_high = 0;
args.phys_low = paddr;
args.catch_result = (grub_ieee1275_cell_t) -1;
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
return -1;
return args.catch_result;
}
int
grub_ieee1275_claim_vaddr (grub_addr_t vaddr, grub_size_t size)
{
struct claim_vaddr_args
{
struct grub_ieee1275_common_hdr common;
grub_ieee1275_cell_t method;
grub_ieee1275_cell_t ihandle;
grub_ieee1275_cell_t align;
grub_ieee1275_cell_t size;
grub_ieee1275_cell_t virt;
grub_ieee1275_cell_t catch_result;
}
args;
INIT_IEEE1275_COMMON (&args.common, "call-method", 5, 2);
args.method = (grub_ieee1275_cell_t) "claim";
args.ihandle = grub_ieee1275_mmu;
args.align = 0;
args.size = size;
args.virt = vaddr;
args.catch_result = (grub_ieee1275_cell_t) -1;
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
return -1;
return args.catch_result;
}
int
grub_ieee1275_alloc_physmem (grub_addr_t *paddr, grub_size_t size,
grub_uint32_t align)
{
grub_uint32_t memory_ihandle;
struct alloc_physmem_args
{
struct grub_ieee1275_common_hdr common;
grub_ieee1275_cell_t method;
grub_ieee1275_cell_t ihandle;
grub_ieee1275_cell_t align;
grub_ieee1275_cell_t size;
grub_ieee1275_cell_t catch_result;
grub_ieee1275_cell_t phys_high;
grub_ieee1275_cell_t phys_low;
}
args;
grub_ssize_t actual = 0;
grub_ieee1275_get_property (grub_ieee1275_chosen, "memory",
&memory_ihandle, sizeof (memory_ihandle),
&actual);
if (actual != sizeof (memory_ihandle))
return -1;
if (!align)
align = 1;
INIT_IEEE1275_COMMON (&args.common, "call-method", 4, 3);
args.method = (grub_ieee1275_cell_t) "claim";
args.ihandle = memory_ihandle;
args.align = (align ? align : 1);
args.size = size;
if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
return -1;
*paddr = args.phys_low;
return args.catch_result;
}