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ARM: fix memblock breakage 

Will says:
| Commit e63075a3 removed the explicit MEMBLOCK_REAL_LIMIT #define
| and introduced the requirement that arch code calls
| memblock_set_current_limit to ensure that the __va macro can
| be used on physical addresses returned from memblock_alloc.

Unfortunately, ARM was missed out of this change.  Fix this.

Reported-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
hifive-unleashed-5.1
Russell King 2010-10-27 18:09:59 +01:00
parent 88d927e948
commit 4e929d2bcf
2 changed files with 1 additions and 10 deletions
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7
arch/arm/include/asm/memblock.h
View File

@ -1,13 +1,6 @@
#ifndef _ASM_ARM_MEMBLOCK_H
#define _ASM_ARM_MEMBLOCK_H
#ifdef CONFIG_MMU
extern phys_addr_t lowmem_end_addr;
#define MEMBLOCK_REAL_LIMIT lowmem_end_addr
#else
#define MEMBLOCK_REAL_LIMIT 0
#endif
struct meminfo;
struct machine_desc;

4
arch/arm/mm/mmu.c
View File

@ -745,13 +745,11 @@ static int __init early_vmalloc(char *arg)
}
early_param("vmalloc", early_vmalloc);
phys_addr_t lowmem_end_addr;
static void __init sanity_check_meminfo(void)
{
int i, j, highmem = 0;
lowmem_end_addr = __pa(vmalloc_min - 1) + 1;
memblock_set_current_limit(__pa(vmalloc_min - 1) + 1);
for (i = 0, j = 0; i < meminfo.nr_banks; i++) {
struct membank *bank = &meminfo.bank[j];