sravan/system76-coreboot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

emulation/qemu-x86: Rename memory.c to memmap.c

Browse Source 
Change-Id: I311423cb565485236f89bd6043155aaf6296a031
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34974
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Kyösti Mälkki
2019-08-18 08:14:11 +03:00
parent f0a3d44458
commit eb0eeb21be
3 changed files with 18 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

69
src/mainboard/emulation/qemu-i440fx/memmap.c Normal file
View File

@@ -0,0 +1,69 @@
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2004 Stefan Reinauer <stefan.reinauer@coreboot.org>
*
* This program 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; version 2 of the License.
*
* This program 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.
*/
#include <cbmem.h>
#include <arch/io.h>
#include <arch/romstage.h>
#include "memory.h"
#include "fw_cfg.h"
#define CMOS_ADDR_PORT 0x70
#define CMOS_DATA_PORT 0x71
#define HIGH_RAM_ADDR 0x35
#define LOW_RAM_ADDR 0x34
#define HIGH_HIGHRAM_ADDR 0x5d
#define MID_HIGHRAM_ADDR 0x5c
#define LOW_HIGHRAM_ADDR 0x5b
unsigned long qemu_get_high_memory_size(void)
{
unsigned long high;
outb(HIGH_HIGHRAM_ADDR, CMOS_ADDR_PORT);
high = ((unsigned long) inb(CMOS_DATA_PORT)) << 22;
outb(MID_HIGHRAM_ADDR, CMOS_ADDR_PORT);
high |= ((unsigned long) inb(CMOS_DATA_PORT)) << 14;
outb(LOW_HIGHRAM_ADDR, CMOS_ADDR_PORT);
high |= ((unsigned long) inb(CMOS_DATA_PORT)) << 6;
return high;
}
unsigned long qemu_get_memory_size(void)
{
unsigned long tomk;
outb(HIGH_RAM_ADDR, CMOS_ADDR_PORT);
tomk = ((unsigned long) inb(CMOS_DATA_PORT)) << 14;
outb(LOW_RAM_ADDR, CMOS_ADDR_PORT);
tomk |= ((unsigned long) inb(CMOS_DATA_PORT)) << 6;
tomk += 16 * 1024;
return tomk;
}
void *cbmem_top(void)
{
uintptr_t top = 0;
top = fw_cfg_tolud();
if (!top)
top = (uintptr_t)qemu_get_memory_size() * 1024;
return (void *)top;
}
/* Nothing to do, MTRRs are no-op on QEMU. */
void fill_postcar_frame(struct postcar_frame *pcf)
{
}