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author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2019-08-18 08:14:11 +0300 |
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committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2019-08-26 21:13:28 +0000 |
commit | eb0eeb21be9886f509d51340ca886b450e2ce95b (patch) | |
tree | 061c3af2958182ae8dceff6d160856d12b80f087 /src/mainboard/emulation/qemu-i440fx/memmap.c | |
parent | f0a3d444580a8dd80c6f8260be2fbd1448118faf (diff) | |
download | coreboot-eb0eeb21be9886f509d51340ca886b450e2ce95b.tar.xz |
emulation/qemu-x86: Rename memory.c to memmap.c
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>
Diffstat (limited to 'src/mainboard/emulation/qemu-i440fx/memmap.c')
-rw-r--r-- | src/mainboard/emulation/qemu-i440fx/memmap.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/src/mainboard/emulation/qemu-i440fx/memmap.c b/src/mainboard/emulation/qemu-i440fx/memmap.c new file mode 100644 index 0000000000..8209379bef --- /dev/null +++ b/src/mainboard/emulation/qemu-i440fx/memmap.c @@ -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) +{ +} |