diff options
Diffstat (limited to 'arch')
-rw-r--r-- | arch/arm/mm/mmu.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index 285894171186..6a08087ab022 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c | |||
@@ -668,7 +668,7 @@ void __init iotable_init(struct map_desc *io_desc, int nr) | |||
668 | create_mapping(io_desc + i); | 668 | create_mapping(io_desc + i); |
669 | } | 669 | } |
670 | 670 | ||
671 | static unsigned long __initdata vmalloc_reserve = SZ_128M; | 671 | static void * __initdata vmalloc_min = (void *)(VMALLOC_END - SZ_128M); |
672 | 672 | ||
673 | /* | 673 | /* |
674 | * vmalloc=size forces the vmalloc area to be exactly 'size' | 674 | * vmalloc=size forces the vmalloc area to be exactly 'size' |
@@ -677,7 +677,7 @@ static unsigned long __initdata vmalloc_reserve = SZ_128M; | |||
677 | */ | 677 | */ |
678 | static int __init early_vmalloc(char *arg) | 678 | static int __init early_vmalloc(char *arg) |
679 | { | 679 | { |
680 | vmalloc_reserve = memparse(arg, NULL); | 680 | unsigned long vmalloc_reserve = memparse(arg, NULL); |
681 | 681 | ||
682 | if (vmalloc_reserve < SZ_16M) { | 682 | if (vmalloc_reserve < SZ_16M) { |
683 | vmalloc_reserve = SZ_16M; | 683 | vmalloc_reserve = SZ_16M; |
@@ -692,12 +692,12 @@ static int __init early_vmalloc(char *arg) | |||
692 | "vmalloc area is too big, limiting to %luMB\n", | 692 | "vmalloc area is too big, limiting to %luMB\n", |
693 | vmalloc_reserve >> 20); | 693 | vmalloc_reserve >> 20); |
694 | } | 694 | } |
695 | |||
696 | vmalloc_min = (void *)(VMALLOC_END - vmalloc_reserve); | ||
695 | return 0; | 697 | return 0; |
696 | } | 698 | } |
697 | early_param("vmalloc", early_vmalloc); | 699 | early_param("vmalloc", early_vmalloc); |
698 | 700 | ||
699 | #define VMALLOC_MIN (void *)(VMALLOC_END - vmalloc_reserve) | ||
700 | |||
701 | static void __init sanity_check_meminfo(void) | 701 | static void __init sanity_check_meminfo(void) |
702 | { | 702 | { |
703 | int i, j, highmem = 0; | 703 | int i, j, highmem = 0; |
@@ -707,7 +707,7 @@ static void __init sanity_check_meminfo(void) | |||
707 | *bank = meminfo.bank[i]; | 707 | *bank = meminfo.bank[i]; |
708 | 708 | ||
709 | #ifdef CONFIG_HIGHMEM | 709 | #ifdef CONFIG_HIGHMEM |
710 | if (__va(bank->start) > VMALLOC_MIN || | 710 | if (__va(bank->start) > vmalloc_min || |
711 | __va(bank->start) < (void *)PAGE_OFFSET) | 711 | __va(bank->start) < (void *)PAGE_OFFSET) |
712 | highmem = 1; | 712 | highmem = 1; |
713 | 713 | ||
@@ -717,8 +717,8 @@ static void __init sanity_check_meminfo(void) | |||
717 | * Split those memory banks which are partially overlapping | 717 | * Split those memory banks which are partially overlapping |
718 | * the vmalloc area greatly simplifying things later. | 718 | * the vmalloc area greatly simplifying things later. |
719 | */ | 719 | */ |
720 | if (__va(bank->start) < VMALLOC_MIN && | 720 | if (__va(bank->start) < vmalloc_min && |
721 | bank->size > VMALLOC_MIN - __va(bank->start)) { | 721 | bank->size > vmalloc_min - __va(bank->start)) { |
722 | if (meminfo.nr_banks >= NR_BANKS) { | 722 | if (meminfo.nr_banks >= NR_BANKS) { |
723 | printk(KERN_CRIT "NR_BANKS too low, " | 723 | printk(KERN_CRIT "NR_BANKS too low, " |
724 | "ignoring high memory\n"); | 724 | "ignoring high memory\n"); |
@@ -727,12 +727,12 @@ static void __init sanity_check_meminfo(void) | |||
727 | (meminfo.nr_banks - i) * sizeof(*bank)); | 727 | (meminfo.nr_banks - i) * sizeof(*bank)); |
728 | meminfo.nr_banks++; | 728 | meminfo.nr_banks++; |
729 | i++; | 729 | i++; |
730 | bank[1].size -= VMALLOC_MIN - __va(bank->start); | 730 | bank[1].size -= vmalloc_min - __va(bank->start); |
731 | bank[1].start = __pa(VMALLOC_MIN - 1) + 1; | 731 | bank[1].start = __pa(vmalloc_min - 1) + 1; |
732 | bank[1].highmem = highmem = 1; | 732 | bank[1].highmem = highmem = 1; |
733 | j++; | 733 | j++; |
734 | } | 734 | } |
735 | bank->size = VMALLOC_MIN - __va(bank->start); | 735 | bank->size = vmalloc_min - __va(bank->start); |
736 | } | 736 | } |
737 | #else | 737 | #else |
738 | bank->highmem = highmem; | 738 | bank->highmem = highmem; |
@@ -741,7 +741,7 @@ static void __init sanity_check_meminfo(void) | |||
741 | * Check whether this memory bank would entirely overlap | 741 | * Check whether this memory bank would entirely overlap |
742 | * the vmalloc area. | 742 | * the vmalloc area. |
743 | */ | 743 | */ |
744 | if (__va(bank->start) >= VMALLOC_MIN || | 744 | if (__va(bank->start) >= vmalloc_min || |
745 | __va(bank->start) < (void *)PAGE_OFFSET) { | 745 | __va(bank->start) < (void *)PAGE_OFFSET) { |
746 | printk(KERN_NOTICE "Ignoring RAM at %.8lx-%.8lx " | 746 | printk(KERN_NOTICE "Ignoring RAM at %.8lx-%.8lx " |
747 | "(vmalloc region overlap).\n", | 747 | "(vmalloc region overlap).\n", |
@@ -753,9 +753,9 @@ static void __init sanity_check_meminfo(void) | |||
753 | * Check whether this memory bank would partially overlap | 753 | * Check whether this memory bank would partially overlap |
754 | * the vmalloc area. | 754 | * the vmalloc area. |
755 | */ | 755 | */ |
756 | if (__va(bank->start + bank->size) > VMALLOC_MIN || | 756 | if (__va(bank->start + bank->size) > vmalloc_min || |
757 | __va(bank->start + bank->size) < __va(bank->start)) { | 757 | __va(bank->start + bank->size) < __va(bank->start)) { |
758 | unsigned long newsize = VMALLOC_MIN - __va(bank->start); | 758 | unsigned long newsize = vmalloc_min - __va(bank->start); |
759 | printk(KERN_NOTICE "Truncating RAM at %.8lx-%.8lx " | 759 | printk(KERN_NOTICE "Truncating RAM at %.8lx-%.8lx " |
760 | "to -%.8lx (vmalloc region overlap).\n", | 760 | "to -%.8lx (vmalloc region overlap).\n", |
761 | bank->start, bank->start + bank->size - 1, | 761 | bank->start, bank->start + bank->size - 1, |