libc/kernel/arch-sh/asm/pgtable_32.h

/****************************************************************************
 ****************************************************************************
 ***
 ***   This header was automatically generated from a Linux kernel header
 ***   of the same name, to make information necessary for userspace to
 ***   call into the kernel available to libc.  It contains only constants,
 ***   structures, and macros generated from the original header, and thus,
 ***   contains no copyrightable information.
 ***
 ****************************************************************************
 ****************************************************************************/
#ifndef __ASM_SH_PGTABLE_32_H
#define __ASM_SH_PGTABLE_32_H

#define _PAGE_WT 0x001  
#define _PAGE_HW_SHARED 0x002  
#define _PAGE_DIRTY 0x004  
#define _PAGE_CACHABLE 0x008  
#define _PAGE_SZ0 0x010  
#define _PAGE_RW 0x020  
#define _PAGE_USER 0x040  
#define _PAGE_SZ1 0x080  
#define _PAGE_PRESENT 0x100  
#define _PAGE_PROTNONE 0x200  
#define _PAGE_ACCESSED 0x400  
#define _PAGE_FILE _PAGE_WT  

#define _PAGE_SZ_MASK (_PAGE_SZ0 | _PAGE_SZ1)
#define _PAGE_PR_MASK (_PAGE_RW | _PAGE_USER)

#define _PAGE_EXT_ESZ0 0x0010  
#define _PAGE_EXT_ESZ1 0x0020  
#define _PAGE_EXT_ESZ2 0x0040  
#define _PAGE_EXT_ESZ3 0x0080  

#define _PAGE_EXT_USER_EXEC 0x0100  
#define _PAGE_EXT_USER_WRITE 0x0200  
#define _PAGE_EXT_USER_READ 0x0400  

#define _PAGE_EXT_KERN_EXEC 0x0800  
#define _PAGE_EXT_KERN_WRITE 0x1000  
#define _PAGE_EXT_KERN_READ 0x2000  

#define _PAGE_EXT(x) ((unsigned long long)(x) << 32)

#define _PAGE_PCC_AREA5 0x00000000  
#define _PAGE_PCC_AREA6 0x80000000  

#define _PAGE_PCC_IODYN 0x00000001  
#define _PAGE_PCC_IO8 0x20000000  
#define _PAGE_PCC_IO16 0x20000001  
#define _PAGE_PCC_COM8 0x40000000  
#define _PAGE_PCC_COM16 0x40000001  
#define _PAGE_PCC_ATR8 0x60000000  
#define _PAGE_PCC_ATR16 0x60000001  

#define _PAGE_CLEAR_FLAGS (_PAGE_PROTNONE | _PAGE_ACCESSED | _PAGE_FILE)

#define _PAGE_FLAGS_HARDWARE_MASK (PHYS_ADDR_MASK & ~(_PAGE_CLEAR_FLAGS))

#define _PAGE_FLAGS_HARD _PAGE_SZ0

#ifndef _PAGE_SZHUGE
#define _PAGE_SZHUGE (_PAGE_FLAGS_HARD)
#endif

#define _PAGE_CHG_MASK   (PTE_MASK | _PAGE_ACCESSED | _PAGE_CACHABLE | _PAGE_DIRTY)

#ifndef __ASSEMBLY__

#define PAGE_NONE __pgprot(_PAGE_PROTNONE | _PAGE_CACHABLE |   _PAGE_ACCESSED | _PAGE_FLAGS_HARD)

#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER |   _PAGE_CACHABLE | _PAGE_ACCESSED |   _PAGE_FLAGS_HARD)

#define PAGE_COPY __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_CACHABLE |   _PAGE_ACCESSED | _PAGE_FLAGS_HARD)

#define PAGE_READONLY __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_CACHABLE |   _PAGE_ACCESSED | _PAGE_FLAGS_HARD)

#define PAGE_EXECREAD PAGE_READONLY
#define PAGE_RWX PAGE_SHARED
#define PAGE_WRITEONLY PAGE_SHARED

#define PAGE_KERNEL __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_CACHABLE |   _PAGE_DIRTY | _PAGE_ACCESSED |   _PAGE_HW_SHARED | _PAGE_FLAGS_HARD)

#define PAGE_KERNEL_NOCACHE   __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY |   _PAGE_ACCESSED | _PAGE_HW_SHARED |   _PAGE_FLAGS_HARD)

#define PAGE_KERNEL_RO __pgprot(_PAGE_PRESENT | _PAGE_CACHABLE |   _PAGE_DIRTY | _PAGE_ACCESSED |   _PAGE_HW_SHARED | _PAGE_FLAGS_HARD)

#define PAGE_KERNEL_PCC(slot, type)   __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY |   _PAGE_ACCESSED | _PAGE_FLAGS_HARD |   (slot ? _PAGE_PCC_AREA5 : _PAGE_PCC_AREA6) |   (type))

#endif

#ifndef __ASSEMBLY__

#define set_pte(pteptr, pteval) (*(pteptr) = pteval)

#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)

#define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval)

#define pfn_pte(pfn, prot)   __pte(((unsigned long long)(pfn) << PAGE_SHIFT) | pgprot_val(prot))
#define pfn_pmd(pfn, prot)   __pmd(((unsigned long long)(pfn) << PAGE_SHIFT) | pgprot_val(prot))

#define pte_none(x) (!pte_val(x))
#define pte_present(x) ((x).pte_low & (_PAGE_PRESENT | _PAGE_PROTNONE))

#define pte_clear(mm,addr,xp) do { set_pte_at(mm, addr, xp, __pte(0)); } while (0)

#define pmd_none(x) (!pmd_val(x))
#define pmd_present(x) (pmd_val(x))
#define pmd_clear(xp) do { set_pmd(xp, __pmd(0)); } while (0)
#define pmd_bad(x) (pmd_val(x) & ~PAGE_MASK)

#define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT))
#define pte_page(x) pfn_to_page(pte_pfn(x))

#define pte_not_present(pte) (!((pte).pte_low & _PAGE_PRESENT))
#define pte_dirty(pte) ((pte).pte_low & _PAGE_DIRTY)
#define pte_young(pte) ((pte).pte_low & _PAGE_ACCESSED)
#define pte_file(pte) ((pte).pte_low & _PAGE_FILE)
#define pte_special(pte) (0)

#define pte_write(pte) ((pte).pte_low & _PAGE_RW)

#define PTE_BIT_FUNC(h,fn,op)  static inline pte_t pte_##fn(pte_t pte) { pte.pte_##h op; return pte; }

#define pgprot_writecombine(prot)   __pgprot(pgprot_val(prot) & ~_PAGE_CACHABLE)
#define pgprot_noncached pgprot_writecombine
#define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot))
#define pmd_page_vaddr(pmd) ((unsigned long)pmd_val(pmd))
#define pmd_page(pmd) (virt_to_page(pmd_val(pmd)))
#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
#define pgd_offset(mm, address) ((mm)->pgd+pgd_index(address))
#define pgd_offset_k(address) pgd_offset(&init_mm, address)
#define pte_index(address) ((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
#define pte_offset_kernel(dir, address)   ((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address))
#define pte_offset_map(dir, address) pte_offset_kernel(dir, address)
#define pte_offset_map_nested(dir, address) pte_offset_kernel(dir, address)
#define pte_unmap(pte) do { } while (0)
#define pte_unmap_nested(pte) do { } while (0)
#define pte_ERROR(e)   printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e))
#define pgd_ERROR(e)   printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
#define __swp_type(x) ((x).val & 0xff)
#define __swp_offset(x) ((x).val >> 10)
#define __swp_entry(type, offset) ((swp_entry_t){(type) | (offset) <<10})
#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) >> 1 })
#define __swp_entry_to_pte(x) ((pte_t) { (x).val << 1 })
#define PTE_FILE_MAX_BITS 29
#define pte_to_pgoff(pte) (pte_val(pte) >> 1)
#define pgoff_to_pte(off) ((pte_t) { ((off) << 1) | _PAGE_FILE })
#endif
#endif