Commit 73346081 authored by Marcin Nowakowski's avatar Marcin Nowakowski Committed by Ralf Baechle
Browse files

MIPS: Use early_init_fdt_reserve_self to protect DTB location 



early_init_fdt_reserve_self is used to tell the boot memory allocator
that a memory is occupied by the DTB, so add it in the MIPS init code to
ensure information about the DTB is added to the boot memory array.

Signed-off-by: default avatarMarcin Nowakowski <marcin.nowakowski@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/14610/


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent d9b5b658

arch/mips/kernel/prom.c

+7 −0
Original line number Diff line number Diff line
@@ -49,6 +49,13 @@ void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align) 
	return __alloc_bootmem(size, align, __pa(MAX_DMA_ADDRESS));

}



int __init early_init_dt_reserve_memory_arch(phys_addr_t base,

					phys_addr_t size, bool nomap)

{

	add_memory_region(base, size, BOOT_MEM_RESERVED);

	return 0;

}



void __init __dt_setup_arch(void *bph)

{

	if (!early_init_dt_scan(bph))

arch/mips/kernel/setup.c

+4 −0
Original line number Diff line number Diff line
@@ -27,6 +27,7 @@ 
#include <linux/device.h>

#include <linux/dma-contiguous.h>

#include <linux/decompress/generic.h>

#include <linux/of_fdt.h>



#include <asm/addrspace.h>

#include <asm/bootinfo.h>
@@ -832,6 +833,9 @@ static void __init arch_mem_init(char **cmdline_p) 
		print_memory_map();

	}



	early_init_fdt_reserve_self();

	early_init_fdt_scan_reserved_mem();



	bootmem_init();

#ifdef CONFIG_PROC_VMCORE

	if (setup_elfcorehdr && setup_elfcorehdr_size) {

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