diff options
Diffstat (limited to 'libc/kernel/arch-sh/asm/pgtable_32.h')
-rw-r--r-- | libc/kernel/arch-sh/asm/pgtable_32.h | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/libc/kernel/arch-sh/asm/pgtable_32.h b/libc/kernel/arch-sh/asm/pgtable_32.h new file mode 100644 index 0000000..6ef21f1 --- /dev/null +++ b/libc/kernel/arch-sh/asm/pgtable_32.h @@ -0,0 +1,152 @@ +/**************************************************************************** + **************************************************************************** + *** + *** 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 |