diff options
Diffstat (limited to 'ANDROID_3.4.5/include/linux/hugetlb.h')
| -rw-r--r-- | ANDROID_3.4.5/include/linux/hugetlb.h | 317 |
1 files changed, 0 insertions, 317 deletions
diff --git a/ANDROID_3.4.5/include/linux/hugetlb.h b/ANDROID_3.4.5/include/linux/hugetlb.h deleted file mode 100644 index 000837e1..00000000 --- a/ANDROID_3.4.5/include/linux/hugetlb.h +++ /dev/null @@ -1,317 +0,0 @@ -#ifndef _LINUX_HUGETLB_H -#define _LINUX_HUGETLB_H - -#include <linux/mm_types.h> -#include <linux/fs.h> -#include <linux/hugetlb_inline.h> - -struct ctl_table; -struct user_struct; - -#ifdef CONFIG_HUGETLB_PAGE - -#include <linux/mempolicy.h> -#include <linux/shm.h> -#include <asm/tlbflush.h> - -struct hugepage_subpool { - spinlock_t lock; - long count; - long max_hpages, used_hpages; -}; - -struct hugepage_subpool *hugepage_new_subpool(long nr_blocks); -void hugepage_put_subpool(struct hugepage_subpool *spool); - -int PageHuge(struct page *page); - -void reset_vma_resv_huge_pages(struct vm_area_struct *vma); -int hugetlb_sysctl_handler(struct ctl_table *, int, void __user *, size_t *, loff_t *); -int hugetlb_overcommit_handler(struct ctl_table *, int, void __user *, size_t *, loff_t *); -int hugetlb_treat_movable_handler(struct ctl_table *, int, void __user *, size_t *, loff_t *); - -#ifdef CONFIG_NUMA -int hugetlb_mempolicy_sysctl_handler(struct ctl_table *, int, - void __user *, size_t *, loff_t *); -#endif - -int copy_hugetlb_page_range(struct mm_struct *, struct mm_struct *, struct vm_area_struct *); -int follow_hugetlb_page(struct mm_struct *, struct vm_area_struct *, - struct page **, struct vm_area_struct **, - unsigned long *, int *, int, unsigned int flags); -void unmap_hugepage_range(struct vm_area_struct *, - unsigned long, unsigned long, struct page *); -void __unmap_hugepage_range(struct vm_area_struct *, - unsigned long, unsigned long, struct page *); -int hugetlb_prefault(struct address_space *, struct vm_area_struct *); -void hugetlb_report_meminfo(struct seq_file *); -int hugetlb_report_node_meminfo(int, char *); -unsigned long hugetlb_total_pages(void); -int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, - unsigned long address, unsigned int flags); -int hugetlb_reserve_pages(struct inode *inode, long from, long to, - struct vm_area_struct *vma, - vm_flags_t vm_flags); -void hugetlb_unreserve_pages(struct inode *inode, long offset, long freed); -int dequeue_hwpoisoned_huge_page(struct page *page); -void copy_huge_page(struct page *dst, struct page *src); - -extern unsigned long hugepages_treat_as_movable; -extern const unsigned long hugetlb_zero, hugetlb_infinity; -extern int sysctl_hugetlb_shm_group; -extern struct list_head huge_boot_pages; - -/* arch callbacks */ - -pte_t *huge_pte_alloc(struct mm_struct *mm, - unsigned long addr, unsigned long sz); -pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr); -int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep); -struct page *follow_huge_addr(struct mm_struct *mm, unsigned long address, - int write); -struct page *follow_huge_pmd(struct mm_struct *mm, unsigned long address, - pmd_t *pmd, int write); -struct page *follow_huge_pud(struct mm_struct *mm, unsigned long address, - pud_t *pud, int write); -int pmd_huge(pmd_t pmd); -int pud_huge(pud_t pmd); -void hugetlb_change_protection(struct vm_area_struct *vma, - unsigned long address, unsigned long end, pgprot_t newprot); - -#else /* !CONFIG_HUGETLB_PAGE */ - -static inline int PageHuge(struct page *page) -{ - return 0; -} - -static inline void reset_vma_resv_huge_pages(struct vm_area_struct *vma) -{ -} - -static inline unsigned long hugetlb_total_pages(void) -{ - return 0; -} - -#define follow_hugetlb_page(m,v,p,vs,a,b,i,w) ({ BUG(); 0; }) -#define follow_huge_addr(mm, addr, write) ERR_PTR(-EINVAL) -#define copy_hugetlb_page_range(src, dst, vma) ({ BUG(); 0; }) -#define hugetlb_prefault(mapping, vma) ({ BUG(); 0; }) -#define unmap_hugepage_range(vma, start, end, page) BUG() -static inline void hugetlb_report_meminfo(struct seq_file *m) -{ -} -#define hugetlb_report_node_meminfo(n, buf) 0 -#define follow_huge_pmd(mm, addr, pmd, write) NULL -#define follow_huge_pud(mm, addr, pud, write) NULL -#define prepare_hugepage_range(file, addr, len) (-EINVAL) -#define pmd_huge(x) 0 -#define pud_huge(x) 0 -#define is_hugepage_only_range(mm, addr, len) 0 -#define hugetlb_free_pgd_range(tlb, addr, end, floor, ceiling) ({BUG(); 0; }) -#define hugetlb_fault(mm, vma, addr, flags) ({ BUG(); 0; }) -#define huge_pte_offset(mm, address) 0 -#define dequeue_hwpoisoned_huge_page(page) 0 -static inline void copy_huge_page(struct page *dst, struct page *src) -{ -} - -#define hugetlb_change_protection(vma, address, end, newprot) - -#endif /* !CONFIG_HUGETLB_PAGE */ - -#define HUGETLB_ANON_FILE "anon_hugepage" - -enum { - /* - * The file will be used as an shm file so shmfs accounting rules - * apply - */ - HUGETLB_SHMFS_INODE = 1, - /* - * The file is being created on the internal vfs mount and shmfs - * accounting rules do not apply - */ - HUGETLB_ANONHUGE_INODE = 2, -}; - -#ifdef CONFIG_HUGETLBFS -struct hugetlbfs_sb_info { - long max_inodes; /* inodes allowed */ - long free_inodes; /* inodes free */ - spinlock_t stat_lock; - struct hstate *hstate; - struct hugepage_subpool *spool; -}; - -static inline struct hugetlbfs_sb_info *HUGETLBFS_SB(struct super_block *sb) -{ - return sb->s_fs_info; -} - -extern const struct file_operations hugetlbfs_file_operations; -extern const struct vm_operations_struct hugetlb_vm_ops; -struct file *hugetlb_file_setup(const char *name, unsigned long addr, - size_t size, vm_flags_t acct, - struct user_struct **user, int creat_flags); - -static inline int is_file_hugepages(struct file *file) -{ - if (file->f_op == &hugetlbfs_file_operations) - return 1; - if (is_file_shm_hugepages(file)) - return 1; - - return 0; -} - -#else /* !CONFIG_HUGETLBFS */ - -#define is_file_hugepages(file) 0 -static inline struct file * -hugetlb_file_setup(const char *name, unsigned long addr, size_t size, - vm_flags_t acctflag, struct user_struct **user, int creat_flags) -{ - return ERR_PTR(-ENOSYS); -} - -#endif /* !CONFIG_HUGETLBFS */ - -#ifdef HAVE_ARCH_HUGETLB_UNMAPPED_AREA -unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, - unsigned long len, unsigned long pgoff, - unsigned long flags); -#endif /* HAVE_ARCH_HUGETLB_UNMAPPED_AREA */ - -#ifdef CONFIG_HUGETLB_PAGE - -#define HSTATE_NAME_LEN 32 -/* Defines one hugetlb page size */ -struct hstate { - int next_nid_to_alloc; - int next_nid_to_free; - unsigned int order; - unsigned long mask; - unsigned long max_huge_pages; - unsigned long nr_huge_pages; - unsigned long free_huge_pages; - unsigned long resv_huge_pages; - unsigned long surplus_huge_pages; - unsigned long nr_overcommit_huge_pages; - struct list_head hugepage_freelists[MAX_NUMNODES]; - unsigned int nr_huge_pages_node[MAX_NUMNODES]; - unsigned int free_huge_pages_node[MAX_NUMNODES]; - unsigned int surplus_huge_pages_node[MAX_NUMNODES]; - char name[HSTATE_NAME_LEN]; -}; - -struct huge_bootmem_page { - struct list_head list; - struct hstate *hstate; -#ifdef CONFIG_HIGHMEM - phys_addr_t phys; -#endif -}; - -struct page *alloc_huge_page_node(struct hstate *h, int nid); - -/* arch callback */ -int __init alloc_bootmem_huge_page(struct hstate *h); - -void __init hugetlb_add_hstate(unsigned order); -struct hstate *size_to_hstate(unsigned long size); - -#ifndef HUGE_MAX_HSTATE -#define HUGE_MAX_HSTATE 1 -#endif - -extern struct hstate hstates[HUGE_MAX_HSTATE]; -extern unsigned int default_hstate_idx; - -#define default_hstate (hstates[default_hstate_idx]) - -static inline struct hstate *hstate_inode(struct inode *i) -{ - struct hugetlbfs_sb_info *hsb; - hsb = HUGETLBFS_SB(i->i_sb); - return hsb->hstate; -} - -static inline struct hstate *hstate_file(struct file *f) -{ - return hstate_inode(f->f_dentry->d_inode); -} - -static inline struct hstate *hstate_vma(struct vm_area_struct *vma) -{ - return hstate_file(vma->vm_file); -} - -static inline unsigned long huge_page_size(struct hstate *h) -{ - return (unsigned long)PAGE_SIZE << h->order; -} - -extern unsigned long vma_kernel_pagesize(struct vm_area_struct *vma); - -extern unsigned long vma_mmu_pagesize(struct vm_area_struct *vma); - -static inline unsigned long huge_page_mask(struct hstate *h) -{ - return h->mask; -} - -static inline unsigned int huge_page_order(struct hstate *h) -{ - return h->order; -} - -static inline unsigned huge_page_shift(struct hstate *h) -{ - return h->order + PAGE_SHIFT; -} - -static inline unsigned int pages_per_huge_page(struct hstate *h) -{ - return 1 << h->order; -} - -static inline unsigned int blocks_per_huge_page(struct hstate *h) -{ - return huge_page_size(h) / 512; -} - -#include <asm/hugetlb.h> - -static inline struct hstate *page_hstate(struct page *page) -{ - return size_to_hstate(PAGE_SIZE << compound_order(page)); -} - -static inline unsigned hstate_index_to_shift(unsigned index) -{ - return hstates[index].order + PAGE_SHIFT; -} - -#else -struct hstate {}; -#define alloc_huge_page_node(h, nid) NULL -#define alloc_bootmem_huge_page(h) NULL -#define hstate_file(f) NULL -#define hstate_vma(v) NULL -#define hstate_inode(i) NULL -#define huge_page_size(h) PAGE_SIZE -#define huge_page_mask(h) PAGE_MASK -#define vma_kernel_pagesize(v) PAGE_SIZE -#define vma_mmu_pagesize(v) PAGE_SIZE -#define huge_page_order(h) 0 -#define huge_page_shift(h) PAGE_SHIFT -static inline unsigned int pages_per_huge_page(struct hstate *h) -{ - return 1; -} -#define hstate_index_to_shift(index) 0 -#endif - -#endif /* _LINUX_HUGETLB_H */ |