1 /**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 **************************************************************************** 11 ****************************************************************************/ 12 #ifndef __ASM_SH_PAGE_H 13 #define __ASM_SH_PAGE_H 14 15 #include <linux/const.h> 16 17 #define PAGE_SHIFT 12 18 19 #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) 20 #define PAGE_MASK (~(PAGE_SIZE-1)) 21 #define PTE_MASK PAGE_MASK 22 23 #ifndef __ASSEMBLY__ 24 25 struct page; 26 struct vm_area_struct; 27 28 #define __HAVE_ARCH_COPY_USER_HIGHPAGE 29 30 typedef struct { unsigned long pte_low; } pte_t; 31 typedef struct { unsigned long pgprot; } pgprot_t; 32 typedef struct { unsigned long pgd; } pgd_t; 33 #define pte_val(x) ((x).pte_low) 34 #define __pte(x) ((pte_t) { (x) } ) 35 36 #define pgd_val(x) ((x).pgd) 37 #define pgprot_val(x) ((x).pgprot) 38 39 #define __pgd(x) ((pgd_t) { (x) } ) 40 #define __pgprot(x) ((pgprot_t) { (x) } ) 41 42 typedef struct page *pgtable_t; 43 44 #endif 45 46 #define __MEMORY_START CONFIG_MEMORY_START 47 #define __MEMORY_SIZE CONFIG_MEMORY_SIZE 48 49 #define PAGE_OFFSET CONFIG_PAGE_OFFSET 50 51 #define __pa(x) ((unsigned long)(x)-PAGE_OFFSET) 52 #define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET)) 53 54 #define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) 55 #define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) 56 57 #define PFN_START (__MEMORY_START >> PAGE_SHIFT) 58 #define ARCH_PFN_OFFSET (PFN_START) 59 #define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) 60 #define pfn_valid(pfn) ((pfn) >= min_low_pfn && (pfn) < max_low_pfn) 61 #define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) 62 63 #define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) 64 65 #include <asm-generic/memory_model.h> 66 67 #define __HAVE_ARCH_GATE_AREA 68 69 #define ARCH_KMALLOC_MINALIGN L1_CACHE_BYTES 70 71 #endif 72