diff options
Diffstat (limited to 'arch/arm/mm')
| -rw-r--r-- | arch/arm/mm/mmu.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index f03ad87f6ba..e7af83e569d 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -566,6 +566,28 @@ void __init iotable_init(struct map_desc *io_desc, int nr) create_mapping(io_desc + i); } +static unsigned long __initdata vmalloc_reserve = SZ_128M; + +/* + * vmalloc=size forces the vmalloc area to be exactly 'size' + * bytes. This can be used to increase (or decrease) the vmalloc + * area - the default is 128m. + */ +static void __init early_vmalloc(char **arg) +{ + vmalloc_reserve = memparse(*arg, arg); + + if (vmalloc_reserve < SZ_16M) { + vmalloc_reserve = SZ_16M; + printk(KERN_WARNING + "vmalloc area too small, limiting to %luMB\n", + vmalloc_reserve >> 20); + } +} +__early_param("vmalloc=", early_vmalloc); + +#define VMALLOC_MIN (void *)(VMALLOC_END - vmalloc_reserve) + static int __init check_membank_valid(struct membank *mb) { /* |