u-boot-brain/arch/x86/cpu/qemu/e820.c
Simon Glass 401d1c4f5d common: Drop asm/global_data.h from common header
Move this out of the common header and include it only where needed.  In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly.   Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
2021-02-02 15:33:42 -05:00

70 lines
1.7 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* QEMU x86 specific E820 table generation
*
* (C) Copyright 2015 Miao Yan <yanmiaobest@gmail.com>
* (C) Copyright 2019 Bin Meng <bmeng.cn@gmail.com>
*/
#include <common.h>
#include <env_internal.h>
#include <malloc.h>
#include <asm/e820.h>
#include <asm/arch/qemu.h>
#include <asm/global_data.h>
DECLARE_GLOBAL_DATA_PTR;
unsigned int install_e820_map(unsigned int max_entries,
struct e820_entry *entries)
{
u64 high_mem_size;
int n = 0;
entries[n].addr = 0;
entries[n].size = ISA_START_ADDRESS;
entries[n].type = E820_RAM;
n++;
entries[n].addr = ISA_START_ADDRESS;
entries[n].size = ISA_END_ADDRESS - ISA_START_ADDRESS;
entries[n].type = E820_RESERVED;
n++;
/*
* since we use memalign(malloc) to allocate high memory for
* storing ACPI tables, we need to reserve them in e820 tables,
* otherwise kernel will reclaim them and data will be corrupted
*/
entries[n].addr = ISA_END_ADDRESS;
entries[n].size = gd->relocaddr - TOTAL_MALLOC_LEN - ISA_END_ADDRESS;
entries[n].type = E820_RAM;
n++;
/* for simplicity, reserve entire malloc space */
entries[n].addr = gd->relocaddr - TOTAL_MALLOC_LEN;
entries[n].size = TOTAL_MALLOC_LEN;
entries[n].type = E820_RESERVED;
n++;
entries[n].addr = gd->relocaddr;
entries[n].size = qemu_get_low_memory_size() - gd->relocaddr;
entries[n].type = E820_RESERVED;
n++;
entries[n].addr = CONFIG_PCIE_ECAM_BASE;
entries[n].size = CONFIG_PCIE_ECAM_SIZE;
entries[n].type = E820_RESERVED;
n++;
high_mem_size = qemu_get_high_memory_size();
if (high_mem_size) {
entries[n].addr = SZ_4G;
entries[n].size = high_mem_size;
entries[n].type = E820_RAM;
n++;
}
return n;
}