diff options
Diffstat (limited to 'sys/compat/linuxkpi/common/include/linux/mm.h')
| -rw-r--r-- | sys/compat/linuxkpi/common/include/linux/mm.h | 117 |
1 files changed, 104 insertions, 13 deletions
diff --git a/sys/compat/linuxkpi/common/include/linux/mm.h b/sys/compat/linuxkpi/common/include/linux/mm.h index 5a16cf0d0a58..109bfffe7d6a 100644 --- a/sys/compat/linuxkpi/common/include/linux/mm.h +++ b/sys/compat/linuxkpi/common/include/linux/mm.h @@ -27,8 +27,6 @@ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $FreeBSD$ */ #ifndef _LINUXKPI_LINUX_MM_H_ #define _LINUXKPI_LINUX_MM_H_ @@ -40,6 +38,9 @@ #include <linux/pfn.h> #include <linux/list.h> #include <linux/mmap_lock.h> +#include <linux/overflow.h> +#include <linux/shrinker.h> +#include <linux/page.h> #include <asm/pgtable.h> @@ -55,6 +56,8 @@ CTASSERT((VM_PROT_ALL & -(1 << 8)) == 0); #define VM_WRITE VM_PROT_WRITE #define VM_EXEC VM_PROT_EXECUTE +#define VM_ACCESS_FLAGS (VM_READ | VM_WRITE | VM_EXEC) + #define VM_PFNINTERNAL (1 << 8) /* FreeBSD private flag to vm_insert_pfn() */ #define VM_MIXEDMAP (1 << 9) #define VM_NORESERVE (1 << 10) @@ -143,11 +146,20 @@ struct vm_operations_struct { }; struct sysinfo { - uint64_t totalram; - uint64_t totalhigh; - uint32_t mem_unit; + uint64_t totalram; /* Total usable main memory size */ + uint64_t freeram; /* Available memory size */ + uint64_t totalhigh; /* Total high memory size */ + uint64_t freehigh; /* Available high memory size */ + uint32_t mem_unit; /* Memory unit size in bytes */ }; +static inline struct page * +virt_to_head_page(const void *p) +{ + + return (virt_to_page(p)); +} + /* * Compute log2 of the power of two rounded up count of pages * needed for size bytes. @@ -217,11 +229,15 @@ apply_to_page_range(struct mm_struct *mm, unsigned long address, int zap_vma_ptes(struct vm_area_struct *vma, unsigned long address, unsigned long size); +int lkpi_remap_pfn_range(struct vm_area_struct *vma, + unsigned long start_addr, unsigned long start_pfn, unsigned long size, + pgprot_t prot); + static inline int remap_pfn_range(struct vm_area_struct *vma, unsigned long addr, unsigned long pfn, unsigned long size, pgprot_t prot) { - return (-ENOTSUP); + return (lkpi_remap_pfn_range(vma, addr, pfn, size, prot)); } static inline unsigned long @@ -233,44 +249,73 @@ vma_pages(struct vm_area_struct *vma) #define offset_in_page(off) ((unsigned long)(off) & (PAGE_SIZE - 1)) static inline void -set_page_dirty(struct vm_page *page) +set_page_dirty(struct page *page) { vm_page_dirty(page); } static inline void -mark_page_accessed(struct vm_page *page) +mark_page_accessed(struct page *page) { vm_page_reference(page); } static inline void -get_page(struct vm_page *page) +get_page(struct page *page) { vm_page_wire(page); } extern long get_user_pages(unsigned long start, unsigned long nr_pages, - int gup_flags, struct page **, + unsigned int gup_flags, struct page **, struct vm_area_struct **); +static inline long +pin_user_pages(unsigned long start, unsigned long nr_pages, + unsigned int gup_flags, struct page **pages, + struct vm_area_struct **vmas) +{ + return get_user_pages(start, nr_pages, gup_flags, pages, vmas); +} + extern int __get_user_pages_fast(unsigned long start, int nr_pages, int write, struct page **); +static inline int +pin_user_pages_fast(unsigned long start, int nr_pages, + unsigned int gup_flags, struct page **pages) +{ + return __get_user_pages_fast( + start, nr_pages, !!(gup_flags & FOLL_WRITE), pages); +} + extern long get_user_pages_remote(struct task_struct *, struct mm_struct *, unsigned long start, unsigned long nr_pages, - int gup_flags, struct page **, + unsigned int gup_flags, struct page **, struct vm_area_struct **); +static inline long +pin_user_pages_remote(struct task_struct *task, struct mm_struct *mm, + unsigned long start, unsigned long nr_pages, + unsigned int gup_flags, struct page **pages, + struct vm_area_struct **vmas) +{ + return get_user_pages_remote( + task, mm, start, nr_pages, gup_flags, pages, vmas); +} + static inline void -put_page(struct vm_page *page) +put_page(struct page *page) { vm_page_unwire(page, PQ_ACTIVE); } +#define unpin_user_page(page) put_page(page) +#define unpin_user_pages(pages, npages) release_pages(pages, npages) + #define copy_highpage(to, from) pmap_copy_page(from, to) static inline pgprot_t @@ -279,7 +324,19 @@ vm_get_page_prot(unsigned long vm_flags) return (vm_flags & VM_PROT_ALL); } -static inline vm_page_t +static inline void +vm_flags_set(struct vm_area_struct *vma, unsigned long flags) +{ + vma->vm_flags |= flags; +} + +static inline void +vm_flags_clear(struct vm_area_struct *vma, unsigned long flags) +{ + vma->vm_flags &= ~flags; +} + +static inline struct page * vmalloc_to_page(const void *addr) { vm_paddr_t paddr; @@ -288,13 +345,47 @@ vmalloc_to_page(const void *addr) return (PHYS_TO_VM_PAGE(paddr)); } +static inline int +trylock_page(struct page *page) +{ + return (vm_page_trylock(page)); +} + +static inline void +unlock_page(struct page *page) +{ + + vm_page_unlock(page); +} + extern int is_vmalloc_addr(const void *addr); void si_meminfo(struct sysinfo *si); +static inline unsigned long +totalram_pages(void) +{ + return ((unsigned long)physmem); +} + #define unmap_mapping_range(...) lkpi_unmap_mapping_range(__VA_ARGS__) void lkpi_unmap_mapping_range(void *obj, loff_t const holebegin __unused, loff_t const holelen, int even_cows __unused); #define PAGE_ALIGNED(p) __is_aligned(p, PAGE_SIZE) +void vma_set_file(struct vm_area_struct *vma, struct linux_file *file); + +static inline void +might_alloc(gfp_t gfp_mask __unused) +{ +} + +#define is_cow_mapping(flags) (false) + +static inline bool +want_init_on_free(void) +{ + return (false); +} + #endif /* _LINUXKPI_LINUX_MM_H_ */ |