diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/m32r/Kconfig | 1 | ||||
| -rw-r--r-- | arch/um/include/asm/page.h | 23 | ||||
| -rw-r--r-- | arch/x86/mm/hugetlbpage.c | 4 |
3 files changed, 13 insertions, 15 deletions
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig index 836ac5a963c8..2841c0a3fd3b 100644 --- a/arch/m32r/Kconfig +++ b/arch/m32r/Kconfig @@ -276,6 +276,7 @@ source "kernel/Kconfig.preempt" config SMP bool "Symmetric multi-processing support" + depends on MMU ---help--- This enables support for systems with more than one CPU. If you have a system with only one CPU, say N. If you have a system with more diff --git a/arch/um/include/asm/page.h b/arch/um/include/asm/page.h index e13d41c392ae..f878bec23576 100644 --- a/arch/um/include/asm/page.h +++ b/arch/um/include/asm/page.h @@ -34,21 +34,18 @@ struct page; #if defined(CONFIG_3_LEVEL_PGTABLES) && !defined(CONFIG_64BIT) -typedef struct { unsigned long pte_low, pte_high; } pte_t; +typedef struct { unsigned long pte; } pte_t; typedef struct { unsigned long pmd; } pmd_t; typedef struct { unsigned long pgd; } pgd_t; -#define pte_val(x) ((x).pte_low | ((unsigned long long) (x).pte_high << 32)) - -#define pte_get_bits(pte, bits) ((pte).pte_low & (bits)) -#define pte_set_bits(pte, bits) ((pte).pte_low |= (bits)) -#define pte_clear_bits(pte, bits) ((pte).pte_low &= ~(bits)) -#define pte_copy(to, from) ({ (to).pte_high = (from).pte_high; \ - smp_wmb(); \ - (to).pte_low = (from).pte_low; }) -#define pte_is_zero(pte) (!((pte).pte_low & ~_PAGE_NEWPAGE) && !(pte).pte_high) -#define pte_set_val(pte, phys, prot) \ - ({ (pte).pte_high = (phys) >> 32; \ - (pte).pte_low = (phys) | pgprot_val(prot); }) +#define pte_val(p) ((p).pte) + +#define pte_get_bits(p, bits) ((p).pte & (bits)) +#define pte_set_bits(p, bits) ((p).pte |= (bits)) +#define pte_clear_bits(p, bits) ((p).pte &= ~(bits)) +#define pte_copy(to, from) ({ (to).pte = (from).pte; }) +#define pte_is_zero(p) (!((p).pte & ~_PAGE_NEWPAGE)) +#define pte_set_val(p, phys, prot) \ + ({ (p).pte = (phys) | pgprot_val(prot); }) #define pmd_val(x) ((x).pmd) #define __pmd(x) ((pmd_t) { (x) } ) diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c index 42982b26e32b..740d7ac03a55 100644 --- a/arch/x86/mm/hugetlbpage.c +++ b/arch/x86/mm/hugetlbpage.c @@ -173,10 +173,10 @@ static __init int setup_hugepagesz(char *opt) } __setup("hugepagesz=", setup_hugepagesz); -#ifdef CONFIG_CMA +#if (defined(CONFIG_MEMORY_ISOLATION) && defined(CONFIG_COMPACTION)) || defined(CONFIG_CMA) static __init int gigantic_pages_init(void) { - /* With CMA we can allocate gigantic pages at runtime */ + /* With compaction or CMA we can allocate gigantic pages at runtime */ if (cpu_has_gbpages && !size_to_hstate(1UL << PUD_SHIFT)) hugetlb_add_hstate(PUD_SHIFT - PAGE_SHIFT); return 0; |
