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/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 2003 Ralf Baechle
 */
#ifndef _ASM_PGTABLE_H
#define _ASM_PGTABLE_H

#include <linux/mm_types.h>
#include <linux/mmzone.h>
#ifdef CONFIG_32BIT
#include <asm/pgtable-32.h>
#endif
#ifdef CONFIG_64BIT
#include <asm/pgtable-64.h>
#endif

#include <asm/io.h>
#include <asm/pgtable-bits.h>

struct mm_struct;
struct vm_area_struct;

#define PAGE_NONE	__pgprot(_PAGE_PRESENT | _PAGE_NO_READ | \
				 _page_cachable_default)
#define PAGE_SHARED	__pgprot(_PAGE_PRESENT | _PAGE_WRITE | \
				 _page_cachable_default)
#define PAGE_COPY	__pgprot(_PAGE_PRESENT | _PAGE_NO_EXEC | \
				 _page_cachable_default)
#define PAGE_READONLY	__pgprot(_PAGE_PRESENT | \
				 _page_cachable_default)
#define PAGE_KERNEL	__pgprot(_PAGE_PRESENT | __READABLE | __WRITEABLE | \
				 _PAGE_GLOBAL | _page_cachable_default)
#define PAGE_KERNEL_NC	__pgprot(_PAGE_PRESENT | __READABLE | __WRITEABLE | \
				 _PAGE_GLOBAL | _CACHE_CACHABLE_NONCOHERENT)
#define PAGE_USERIO	__pgprot(_PAGE_PRESENT | _PAGE_WRITE | \
				 _page_cachable_default)
#define PAGE_KERNEL_UNCACHED __pgprot(_PAGE_PRESENT | __READABLE | \
			__WRITEABLE | _PAGE_GLOBAL | _CACHE_UNCACHED)

/*
 * If _PAGE_NO_EXEC is not defined, we can't do page protection for
 * execute, and consider it to be the same as read. Also, write
 * permissions imply read permissions. This is the closest we can get
 * by reasonable means..
 */

/*
 * Dummy values to fill the table in mmap.c
 * The real values will be generated at runtime
 */
#define __P000 __pgprot(0)
#define __P001 __pgprot(0)
#define __P010 __pgprot(0)
#define __P011 __pgprot(0)
#define __P100 __pgprot(0)
#define __P101 __pgprot(0)
#define __P110 __pgprot(0)
#define __P111 __pgprot(0)

#define __S000 __pgprot(0)
#define __S001 __pgprot(0)
#define __S010 __pgprot(0)
#define __S011 __pgprot(0)
#define __S100 __pgprot(0)
#define __S101 __pgprot(0)
#define __S110 __pgprot(0)
#define __S111 __pgprot(0)

extern unsigned long _page_cachable_default;

/*
 * ZERO_PAGE is a global shared page that is always zero; used
 * for zero-mapped memory areas etc..
 */

extern unsigned long empty_zero_page;
extern unsigned long zero_page_mask;

#define ZERO_PAGE(vaddr) \
	(virt_to_page((void *)(empty_zero_page + (((unsigned long)(vaddr)) & zero_page_mask))))
#define __HAVE_COLOR_ZERO_PAGE

extern void paging_init(void);

/*
 * Conversion functions: convert a page and protection to a page entry,
 * and a page entry and page directory to the page they refer to.
 */
#define pmd_phys(pmd)		virt_to_phys((void *)pmd_val(pmd))

#define __pmd_page(pmd)		(pfn_to_page(pmd_phys(pmd) >> PAGE_SHIFT))
#ifndef CONFIG_TRANSPARENT_HUGEPAGE
#define pmd_page(pmd)		__pmd_page(pmd)
#endif /* CONFIG_TRANSPARENT_HUGEPAGE  */

#define pmd_page_vaddr(pmd)	pmd_val(pmd)

#define htw_stop()							\
do {									\
	unsigned long flags;						\
									\
	if (cpu_has_htw) {						\
		local_irq_save(flags);					\
		if(!raw_current_cpu_data.htw_seq++) {			\
			write_c0_pwctl(read_c0_pwctl() &		\
				       ~(1 << MIPS_PWCTL_PWEN_SHIFT));	\
			back_to_back_c0_hazard();			\
		}							\
		local_irq_restore(flags);				\
	}								\
} while(0)

#define htw_start()							\
do {									\
	unsigned long flags;						\
									\
	if (cpu_has_htw) {						\
		local_irq_save(flags);					\
		if (!--raw_current_cpu_data.htw_seq) {			\
			write_c0_pwctl(read_c0_pwctl() |		\
				       (1 << MIPS_PWCTL_PWEN_SHIFT));	\
			back_to_back_c0_hazard();			\
		}							\
		local_irq_restore(flags);				\
	}								\
} while(0)

static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
			      pte_t *ptep, pte_t pteval);

#if defined(CONFIG_PHYS_ADDR_T_64BIT) && defined(CONFIG_CPU_MIPS32)

#ifdef CONFIG_XPA
# define pte_none(pte)		(!(((pte).pte_high) & ~_PAGE_GLOBAL))
#else
# define pte_none(pte)		(!(((pte).pte_low | (pte).pte_high) & ~_PAGE_GLOBAL))
#endif

#define pte_present(pte)	((pte).pte_low & _PAGE_PRESENT)
#define pte_no_exec(pte)	((pte).pte_low & _PAGE_NO_EXEC)

static inline void set_pte(pte_t *ptep, pte_t pte)
{
	ptep->pte_high = pte.pte_high;
	smp_wmb();
	ptep->pte_low = pte.pte_low;

#ifdef CONFIG_XPA
	if (pte.pte_high & _PAGE_GLOBAL) {
#else
	if (pte.pte_low & _PAGE_GLOBAL) {
#endif
		pte_t *buddy = ptep_buddy(ptep);
		/*
		 * Make sure the buddy is global too (if it's !none,
		 * it better already be global)
		 */
		if (pte_none(*buddy)) {
			if (!IS_ENABLED(CONFIG_XPA))
				buddy->pte_low |= _PAGE_GLOBAL;
			buddy->pte_high |= _PAGE_GLOBAL;
		}
	}
}

static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
{
	pte_t null = __pte(0);

	htw_stop();
	/* Preserve global status for the pair */
	if (IS_ENABLED(CONFIG_XPA)) {
		if (ptep_buddy(ptep)->pte_high & _PAGE_GLOBAL)
			null.pte_high = _PAGE_GLOBAL;
	} else {
		if (ptep_buddy(ptep)->pte_low & _PAGE_GLOBAL)
			null.pte_low = null.pte_high = _PAGE_GLOBAL;
	}

	set_pte_at(mm, addr, ptep, null);
	htw_start();
}
#else

#define pte_none(pte)		(!(pte_val(pte) & ~_PAGE_GLOBAL))
#define pte_present(pte)	(pte_val(pte) & _PAGE_PRESENT)
#define pte_no_exec(pte)	(pte_val(pte) & _PAGE_NO_EXEC)

/*
 * Certain architectures need to do special things when pte's
 * within a page table are directly modified.  Thus, the following
 * hook is made available.
 */
static inline void set_pte(pte_t *ptep, pte_t pteval)
{
	*ptep = pteval;
#if !defined(CONFIG_CPU_R3000) && !defined(CONFIG_CPU_TX39XX)
	if (pte_val(pteval) & _PAGE_GLOBAL) {
		pte_t *buddy = ptep_buddy(ptep);
		/*
		 * Make sure the buddy is global too (if it's !none,
		 * it better already be global)
		 */
#ifdef CONFIG_SMP
		/*
		 * For SMP, multiple CPUs can race, so we need to do
		 * this atomically.
		 */
		unsigned long page_global = _PAGE_GLOBAL;
		unsigned long tmp;

		if (kernel_uses_llsc && R10000_LLSC_WAR) {
			__asm__ __volatile__ (
			"	.set	arch=r4000			\n"
			"	.set	push				\n"
			"	.set	noreorder			\n"
			"1:"	__LL	"%[tmp], %[buddy]		\n"
			"	bnez	%[tmp], 2f			\n"
			"	 or	%[tmp], %[tmp], %[global]	\n"
				__SC	"%[tmp], %[buddy]		\n"
			"	beqzl	%[tmp], 1b			\n"
			"	nop					\n"
			"2:						\n"
			"	.set	pop				\n"
			"	.set	mips0				\n"
			: [buddy] "+m" (buddy->pte), [tmp] "=&r" (tmp)
			: [global] "r" (page_global));
		} else if (kernel_uses_llsc) {
			__asm__ __volatile__ (
			"	.set	"MIPS_ISA_ARCH_LEVEL"		\n"
			"	.set	push				\n"
			"	.set	noreorder			\n"
			"1:"	__LL	"%[tmp], %[buddy]		\n"
			"	bnez	%[tmp], 2f			\n"
			"	 or	%[tmp], %[tmp], %[global]	\n"
				__SC	"%[tmp], %[buddy]		\n"
			"	beqz	%[tmp], 1b			\n"
			"	nop					\n"
			"2:						\n"
			"	.set	pop				\n"
			"	.set	mips0				\n"
			: [buddy] "+m" (buddy->pte), [tmp] "=&r" (tmp)
			: [global] "r" (page_global));
		}
#else /* !CONFIG_SMP */
		if (pte_none(*buddy))
			pte_val(*buddy) = pte_val(*buddy) | _PAGE_GLOBAL;
#endif /* CONFIG_SMP */
	}
#endif
}

static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
{
	htw_stop();
#if !defined(CONFIG_CPU_R3000) && !defined(CONFIG_CPU_TX39XX)
	/* Preserve global status for the pair */
	if (pte_val(*ptep_buddy(ptep)) & _PAGE_GLOBAL)
		set_pte_at(mm, addr, ptep, __pte(_PAGE_GLOBAL));
	else
#endif
		set_pte_at(mm, addr, ptep, __pte(0));
	htw_start();
}
#endif

static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
			      pte_t *ptep, pte_t pteval)
{
	extern void __update_cache(unsigned long address, pte_t pte);

	if (!pte_present(pteval))
		goto cache_sync_done;

	if (pte_present(*ptep) && (pte_pfn(*ptep) == pte_pfn(pteval)))
		goto cache_sync_done;

	__update_cache(addr, pteval);
cache_sync_done:
	set_pte(ptep, pteval);
}

/*
 * (pmds are folded into puds so this doesn't get actually called,
 * but the define is needed for a generic inline function.)
 */
#define set_pmd(pmdptr, pmdval) do { *(pmdptr) = (pmdval); } while(0)

#ifndef __PAGETABLE_PMD_FOLDED
/*
 * (puds are folded into pgds so this doesn't get actually called,
 * but the define is needed for a generic inline function.)
 */
#define set_pud(pudptr, pudval) do { *(pudptr) = (pudval); } while(0)
#endif

#define PGD_T_LOG2	(__builtin_ffs(sizeof(pgd_t)) - 1)
#define PMD_T_LOG2	(__builtin_ffs(sizeof(pmd_t)) - 1)
#define PTE_T_LOG2	(__builtin_ffs(sizeof(pte_t)) - 1)

/*
 * We used to declare this array with size but gcc 3.3 and older are not able
 * to find that this expression is a constant, so the size is dropped.
 */
extern pgd_t swapper_pg_dir[];

/*
 * The following only work if pte_present() is true.
 * Undefined behaviour if not..
 */
#if defined(CONFIG_PHYS_ADDR_T_64BIT) && defined(CONFIG_CPU_MIPS32)
static inline int pte_write(pte_t pte)	{ return pte.pte_low & _PAGE_WRITE; }
static inline int pte_dirty(pte_t pte)	{ return pte.pte_low & _PAGE_MODIFIED; }
static inline int pte_young(pte_t pte)	{ return pte.pte_low & _PAGE_ACCESSED; }

static inline pte_t pte_wrprotect(pte_t pte)
{
	pte.pte_low  &= ~_PAGE_WRITE;
	if (!IS_ENABLED(CONFIG_XPA))
		pte.pte_low &= ~_PAGE_SILENT_WRITE;
	pte.pte_high &= ~_PAGE_SILENT_WRITE;
	return pte;
}

static inline pte_t pte_mkclean(pte_t pte)
{
	pte.pte_low  &= ~_PAGE_MODIFIED;
	if (!IS_ENABLED(CONFIG_XPA))
		pte.pte_low &= ~_PAGE_SILENT_WRITE;
	pte.pte_high &= ~_PAGE_SILENT_WRITE;
	return pte;
}

static inline pte_t pte_mkold(pte_t pte)
{
	pte.pte_low  &= ~_PAGE_ACCESSED;
	if (!IS_ENABLED(CONFIG_XPA))
		pte.pte_low &= ~_PAGE_SILENT_READ;
	pte.pte_high &= ~_PAGE_SILENT_READ;
	return pte;
}

static inline pte_t pte_mkwrite(pte_t pte)
{
	pte.pte_low |= _PAGE_WRITE;
	if (pte.pte_low & _PAGE_MODIFIED) {
		if (!IS_ENABLED(CONFIG_XPA))
			pte.pte_low |= _PAGE_SILENT_WRITE;
		pte.pte_high |= _PAGE_SILENT_WRITE;
	}
	return pte;
}

static inline pte_t pte_mkdirty(pte_t pte)
{
	pte.pte_low |= _PAGE_MODIFIED;
	if (pte.pte_low & _PAGE_WRITE) {
		if (!IS_ENABLED(CONFIG_XPA))
			pte.pte_low |= _PAGE_SILENT_WRITE;
		pte.pte_high |= _PAGE_SILENT_WRITE;
	}
	return pte;
}

static inline pte_t pte_mkyoung(pte_t pte)
{
	pte.pte_low |= _PAGE_ACCESSED;
	if (!(pte.pte_low & _PAGE_NO_READ)) {
		if (!IS_ENABLED(CONFIG_XPA))
			pte.pte_low |= _PAGE_SILENT_READ;
		pte.pte_high |= _PAGE_SILENT_READ;
	}
	return pte;
}
#else
static inline int pte_write(pte_t pte)	{ return pte_val(pte) & _PAGE_WRITE; }
static inline int pte_dirty(pte_t pte)	{ return pte_val(pte) & _PAGE_MODIFIED; }
static inline int pte_young(pte_t pte)	{ return pte_val(pte) & _PAGE_ACCESSED; }

static inline pte_t pte_wrprotect(pte_t pte)
{
	pte_val(pte) &= ~(_PAGE_WRITE | _PAGE_SILENT_WRITE);
	return pte;
}

static inline pte_t pte_mkclean(pte_t pte)
{
	pte_val(pte) &= ~(_PAGE_MODIFIED | _PAGE_SILENT_WRITE);
	return pte;
}

static inline pte_t pte_mkold(pte_t pte)
{
	pte_val(pte) &= ~(_PAGE_ACCESSED | _PAGE_SILENT_READ);
	return pte;
}

static inline pte_t pte_mkwrite(pte_t pte)
{
	pte_val(pte) |= _PAGE_WRITE;
	if (pte_val(pte) & _PAGE_MODIFIED)
		pte_val(pte) |= _PAGE_SILENT_WRITE;
	return pte;
}

static inline pte_t pte_mkdirty(pte_t pte)
{
	pte_val(pte) |= _PAGE_MODIFIED;
	if (pte_val(pte) & _PAGE_WRITE)
		pte_val(pte) |= _PAGE_SILENT_WRITE;
	return pte;
}

static inline pte_t pte_mkyoung(pte_t pte)
{
	pte_val(pte) |= _PAGE_ACCESSED;
	if (!(pte_val(pte) & _PAGE_NO_READ))
		pte_val(pte) |= _PAGE_SILENT_READ;
	return pte;
}

#ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT
static inline int pte_huge(pte_t pte)	{ return pte_val(pte) & _PAGE_HUGE; }

static inline pte_t pte_mkhuge(pte_t pte)
{
	pte_val(pte) |= _PAGE_HUGE;
	return pte;
}
#endif /* CONFIG_MIPS_HUGE_TLB_SUPPORT */
#endif
static inline int pte_special(pte_t pte)	{ return 0; }
static inline pte_t pte_mkspecial(pte_t pte)	{ return pte; }

/*
 * Macro to make mark a page protection value as "uncacheable".	 Note
 * that "protection" is really a misnomer here as the protection value
 * contains the memory attribute bits, dirty bits, and various other
 * bits as well.
 */
#define pgprot_noncached pgprot_noncached

static inline pgprot_t pgprot_noncached(pgprot_t _prot)
{
	unsigned long prot = pgprot_val(_prot);

	prot = (prot & ~_CACHE_MASK) | _CACHE_UNCACHED;

	return __pgprot(prot);
}

#define pgprot_writecombine pgprot_writecombine

static inline pgprot_t pgprot_writecombine(pgprot_t _prot)
{
	unsigned long prot = pgprot_val(_prot);

	/* cpu_data[0].writecombine is already shifted by _CACHE_SHIFT */
	prot = (prot & ~_CACHE_MASK) | cpu_data[0].writecombine;

	return __pgprot(prot);
}

/*
 * Conversion functions: convert a page and protection to a page entry,
 * and a page entry and page directory to the page they refer to.
 */
#define mk_pte(page, pgprot)	pfn_pte(page_to_pfn(page), (pgprot))

#if defined(CONFIG_XPA)
static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
{
	pte.pte_low  &= (_PAGE_MODIFIED | _PAGE_ACCESSED | _PFNX_MASK);
	pte.pte_high &= (_PFN_MASK | _CACHE_MASK);
	pte.pte_low  |= pgprot_val(newprot) & ~_PFNX_MASK;
	pte.pte_high |= pgprot_val(newprot) & ~(_PFN_MASK | _CACHE_MASK);
	return pte;
}
#elif defined(CONFIG_PHYS_ADDR_T_64BIT) && defined(CONFIG_CPU_MIPS32)
static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
{
	pte.pte_low  &= _PAGE_CHG_MASK;
	pte.pte_high &= (_PFN_MASK | _CACHE_MASK);
	pte.pte_low  |= pgprot_val(newprot);
	pte.pte_high |= pgprot_val(newprot) & ~(_PFN_MASK | _CACHE_MASK);
	return pte;
}
#else
static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
{
	return __pte((pte_val(pte) & _PAGE_CHG_MASK) |
		     (pgprot_val(newprot) & ~_PAGE_CHG_MASK));
}
#endif


extern void __update_tlb(struct vm_area_struct *vma, unsigned long address,
	pte_t pte);

static inline void update_mmu_cache(struct vm_area_struct *vma,
	unsigned long address, pte_t *ptep)
{
	pte_t pte = *ptep;
	__update_tlb(vma, address, pte);
}

static inline void update_mmu_cache_pmd(struct vm_area_struct *vma,
	unsigned long address, pmd_t *pmdp)
{
	pte_t pte = *(pte_t *)pmdp;

	__update_tlb(vma, address, pte);
}

#define kern_addr_valid(addr)	(1)

#ifdef CONFIG_PHYS_ADDR_T_64BIT
extern int remap_pfn_range(struct vm_area_struct *vma, unsigned long from, unsigned long pfn, unsigned long size, pgprot_t prot);

static inline int io_remap_pfn_range(struct vm_area_struct *vma,
		unsigned long vaddr,
		unsigned long pfn,
		unsigned long size,
		pgprot_t prot)
{
	phys_addr_t phys_addr_high = fixup_bigphys_addr(pfn << PAGE_SHIFT, size);
	return remap_pfn_range(vma, vaddr, phys_addr_high >> PAGE_SHIFT, size, prot);
}
#define io_remap_pfn_range io_remap_pfn_range
#endif

#ifdef CONFIG_TRANSPARENT_HUGEPAGE

#define has_transparent_hugepage has_transparent_hugepage
extern int has_transparent_hugepage(void);

static inline int pmd_trans_huge(pmd_t pmd)
{
	return !!(pmd_val(pmd) & _PAGE_HUGE);
}

static inline pmd_t pmd_mkhuge(pmd_t pmd)
{
	pmd_val(pmd) |= _PAGE_HUGE;

	return pmd;
}

extern void set_pmd_at(struct mm_struct *mm, unsigned long addr,
		       pmd_t *pmdp, pmd_t pmd);

#define pmd_write pmd_write
static inline int pmd_write(pmd_t pmd)
{
	return !!(pmd_val(pmd) & _PAGE_WRITE);
}

static inline pmd_t pmd_wrprotect(pmd_t pmd)
{
	pmd_val(pmd) &= ~(_PAGE_WRITE | _PAGE_SILENT_WRITE);
	return pmd;
}

static inline pmd_t pmd_mkwrite(pmd_t pmd)
{
	pmd_val(pmd) |= _PAGE_WRITE;
	if (pmd_val(pmd) & _PAGE_MODIFIED)
		pmd_val(pmd) |= _PAGE_SILENT_WRITE;

	return pmd;
}

static inline int pmd_dirty(pmd_t pmd)
{
	return !!(pmd_val(pmd) & _PAGE_MODIFIED);
}

static inline pmd_t pmd_mkclean(pmd_t pmd)
{
	pmd_val(pmd) &= ~(_PAGE_MODIFIED | _PAGE_SILENT_WRITE);
	return pmd;
}

static inline pmd_t pmd_mkdirty(pmd_t pmd)
{
	pmd_val(pmd) |= _PAGE_MODIFIED;
	if (pmd_val(pmd) & _PAGE_WRITE)
		pmd_val(pmd) |= _PAGE_SILENT_WRITE;

	return pmd;
}

static inline int pmd_young(pmd_t pmd)
{
	return !!(pmd_val(pmd) & _PAGE_ACCESSED);
}

static inline pmd_t pmd_mkold(pmd_t pmd)
{
	pmd_val(pmd) &= ~(_PAGE_ACCESSED|_PAGE_SILENT_READ);

	return pmd;
}

static inline pmd_t pmd_mkyoung(pmd_t pmd)
{
	pmd_val(pmd) |= _PAGE_ACCESSED;

	if (!(pmd_val(pmd) & _PAGE_NO_READ))
		pmd_val(pmd) |= _PAGE_SILENT_READ;

	return pmd;
}

/* Extern to avoid header file madness */
extern pmd_t mk_pmd(struct page *page, pgprot_t prot);

static inline unsigned long pmd_pfn(pmd_t pmd)
{
	return pmd_val(pmd) >> _PFN_SHIFT;
}

static inline struct page *pmd_page(pmd_t pmd)
{
	if (pmd_trans_huge(pmd))
		return pfn_to_page(pmd_pfn(pmd));

	return pfn_to_page(pmd_phys(pmd) >> PAGE_SHIFT);
}

static inline pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot)
{
	pmd_val(pmd) = (pmd_val(pmd) & (_PAGE_CHG_MASK | _PAGE_HUGE)) |
		       (pgprot_val(newprot) & ~_PAGE_CHG_MASK);
	return pmd;
}

static inline pmd_t pmd_mknotpresent(pmd_t pmd)
{
	pmd_val(pmd) &= ~(_PAGE_PRESENT | _PAGE_VALID | _PAGE_DIRTY);

	return pmd;
}

/*
 * The generic version pmdp_huge_get_and_clear uses a version of pmd_clear() with a
 * different prototype.
 */
#define __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR
static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,
					    unsigned long address, pmd_t *pmdp)
{
	pmd_t old = *pmdp;

	pmd_clear(pmdp);

	return old;
}

#endif /* CONFIG_TRANSPARENT_HUGEPAGE */

#include <asm-generic/pgtable.h>

/*
 * uncached accelerated TLB map for video memory access
 */
#ifdef CONFIG_CPU_SUPPORTS_UNCACHED_ACCELERATED
#define __HAVE_PHYS_MEM_ACCESS_PROT

struct file;
pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
		unsigned long size, pgprot_t vma_prot);
#endif

/*
 * We provide our own get_unmapped area to cope with the virtual aliasing
 * constraints placed on us by the cache architecture.
 */
#define HAVE_ARCH_UNMAPPED_AREA
#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN

/*
 * No page table caches to initialise
 */
#define pgtable_cache_init()	do { } while (0)

#endif /* _ASM_PGTABLE_H */

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dec Folder 0755
emma Folder 0755
fw Folder 0755
ip32 Folder 0755
lasat Folder 0755
mach-ar7 Folder 0755
mach-ath25 Folder 0755
mach-ath79 Folder 0755
mach-au1x00 Folder 0755
mach-bcm47xx Folder 0755
mach-bcm63xx Folder 0755
mach-bmips Folder 0755
mach-cavium-octeon Folder 0755
mach-cobalt Folder 0755
mach-db1x00 Folder 0755
mach-dec Folder 0755
mach-emma2rh Folder 0755
mach-generic Folder 0755
mach-ip22 Folder 0755
mach-ip27 Folder 0755
mach-ip28 Folder 0755
mach-ip32 Folder 0755
mach-jazz Folder 0755
mach-jz4740 Folder 0755
mach-lantiq Folder 0755
mach-lasat Folder 0755
mach-loongson32 Folder 0755
mach-loongson64 Folder 0755
mach-malta Folder 0755
mach-netlogic Folder 0755
mach-paravirt Folder 0755
mach-pic32 Folder 0755
mach-pistachio Folder 0755
mach-pmcs-msp71xx Folder 0755
mach-pnx833x Folder 0755
mach-ralink Folder 0755
mach-rc32434 Folder 0755
mach-rm Folder 0755
mach-sibyte Folder 0755
mach-tx39xx Folder 0755
mach-tx49xx Folder 0755
mach-vr41xx Folder 0755
mach-xilfpga Folder 0755
mips-boards Folder 0755
netlogic Folder 0755
octeon Folder 0755
pci Folder 0755
sgi Folder 0755
sibyte Folder 0755
sn Folder 0755
txx9 Folder 0755
vr41xx Folder 0755
xtalk Folder 0755
Kbuild File 577 B 0644
abi.h File 853 B 0644
addrspace.h File 4.1 KB 0644
amon.h File 409 B 0644
arch_hweight.h File 792 B 0644
asm-eva.h File 6.82 KB 0644
asm-offsets.h File 35 B 0644
asm-prototypes.h File 197 B 0644
asm.h File 8.47 KB 0644
asmmacro-32.h File 2.47 KB 0644
asmmacro-64.h File 1.22 KB 0644
asmmacro.h File 14.07 KB 0644
atomic.h File 19.73 KB 0644
barrier.h File 8.03 KB 0644
bcache.h File 2.04 KB 0644
bitops.h File 15.46 KB 0644
bitrev.h File 608 B 0644
bmips-spaces.h File 268 B 0644
bmips.h File 3.45 KB 0644
bootinfo.h File 5.08 KB 0644
branch.h File 2.35 KB 0644
break.h File 787 B 0644
bug.h File 759 B 0644
bugs.h File 944 B 0644
cache.h File 546 B 0644
cacheflush.h File 4.99 KB 0644
cacheops.h File 3.71 KB 0644
cdmm.h File 3.67 KB 0644
cevt-r4k.h File 823 B 0644
checksum.h File 6.43 KB 0644
clock.h File 997 B 0644
clocksource.h File 884 B 0644
cmp.h File 492 B 0644
cmpxchg.h File 5.28 KB 0644
compat-signal.h File 640 B 0644
compat.h File 6.66 KB 0644
compiler.h File 2.96 KB 0644
cop2.h File 1.77 KB 0644
cpu-features.h File 19.46 KB 0644
cpu-info.h File 5.84 KB 0644
cpu-type.h File 4.13 KB 0644
cpu.h File 15.54 KB 0644
cpufeature.h File 717 B 0644
debug.h File 654 B 0644
delay.h File 841 B 0644
device.h File 347 B 0644
div64.h File 2.17 KB 0644
dma-coherence.h File 813 B 0644
dma-mapping.h File 981 B 0644
dma.h File 9.92 KB 0644
ds1287.h File 1019 B 0644
dsemul.h File 3.24 KB 0644
dsp.h File 1.91 KB 0644
edac.h File 819 B 0644
elf.h File 15.04 KB 0644
errno.h File 429 B 0644
eva.h File 796 B 0644
exec.h File 579 B 0644
extable.h File 241 B 0644
fb.h File 372 B 0644
fixmap.h File 2.29 KB 0644
floppy.h File 1.57 KB 0644
fpregdef.h File 2.66 KB 0644
fpu.h File 5.21 KB 0644
fpu_emulator.h File 5.74 KB 0644
ftrace.h File 2.11 KB 0644
futex.h File 4.87 KB 0644
gio_device.h File 1.5 KB 0644
gt64120.h File 19.37 KB 0644
hardirq.h File 544 B 0644
hazards.h File 8.36 KB 0644
highmem.h File 1.72 KB 0644
hpet.h File 1.93 KB 0644
hugetlb.h File 2.76 KB 0644
hw_irq.h File 475 B 0644
i8259.h File 2.52 KB 0644
ide.h File 330 B 0644
idle.h File 689 B 0644
inst.h File 2.34 KB 0644
io.h File 18.44 KB 0644
irq.h File 2.26 KB 0644
irq_cpu.h File 708 B 0644
irq_gt641xx.h File 2.69 KB 0644
irq_regs.h File 744 B 0644
irqflags.h File 4.04 KB 0644
isa-rev.h File 556 B 0644
isadep.h File 603 B 0644
jazz.h File 8 KB 0644
jazzdma.h File 2.97 KB 0644
jump_label.h File 1.4 KB 0644
kdebug.h File 303 B 0644
kexec.h File 1.53 KB 0644
kgdb.h File 1.19 KB 0644
kmap_types.h File 221 B 0644
kprobes.h File 2.68 KB 0644
kvm_host.h File 37.88 KB 0644
kvm_para.h File 2.09 KB 0644
linkage.h File 306 B 0644
llsc.h File 623 B 0644
local.h File 4.99 KB 0644
m48t37.h File 732 B 0644
maar.h File 4.04 KB 0644
machine.h File 2.93 KB 0644
mc146818-time.h File 3.69 KB 0644
mc146818rtc.h File 450 B 0644
mips-cm.h File 15.86 KB 0644
mips-cpc.h File 5.83 KB 0644
mips-cps.h File 6.55 KB 0644
mips-gic.h File 12.3 KB 0644
mips-r2-to-r6-emul.h File 2.05 KB 0644
mips_machine.h File 1.32 KB 0644
mips_mt.h File 707 B 0644
mipsmtregs.h File 10.9 KB 0644
mipsprom.h File 2.1 KB 0644
mipsregs.h File 88.1 KB 0644
mmu.h File 550 B 0644
mmu_context.h File 5.41 KB 0644
mmzone.h File 561 B 0644
module.h File 4.45 KB 0644
msa.h File 8.01 KB 0644
msc01_ic.h File 6.55 KB 0644
nile4.h File 10.33 KB 0644
paccess.h File 3.07 KB 0644
page.h File 7.19 KB 0644
pci.h File 4.08 KB 0644
perf_event.h File 482 B 0644
pgalloc.h File 3.21 KB 0644
pgtable-32.h File 7.31 KB 0644
pgtable-64.h File 10.87 KB 0644
pgtable-bits.h File 7.36 KB 0644
pgtable.h File 17.34 KB 0644
pm-cps.h File 1.68 KB 0644
pm.h File 3.99 KB 0644
pmon.h File 1.64 KB 0644
prefetch.h File 2.1 KB 0644
processor.h File 11.71 KB 0644
prom.h File 845 B 0644
ptrace.h File 5.55 KB 0644
r4k-timer.h File 604 B 0644
r4kcache.h File 26.34 KB 0644
reboot.h File 440 B 0644
reg.h File 26 B 0644
regdef.h File 2.63 KB 0644
rtlx.h File 2.1 KB 0644
seccomp.h File 800 B 0644
serial.h File 607 B 0644
setup.h File 884 B 0644
sgialib.h File 2.45 KB 0644
sgiarcs.h File 15.32 KB 0644
shmparam.h File 352 B 0644
sigcontext.h File 1.04 KB 0644
signal.h File 1.02 KB 0644
sim.h File 2.32 KB 0644
smp-cps.h File 1.18 KB 0644
smp-ops.h File 2.33 KB 0644
smp.h File 3.31 KB 0644
sni.h File 7.27 KB 0644
socket.h File 1.34 KB 0644
sparsemem.h File 486 B 0644
spinlock.h File 459 B 0644
spinlock_types.h File 188 B 0644
spram.h File 262 B 0644
stackframe.h File 10.82 KB 0644
stackprotector.h File 1.15 KB 0644
stacktrace.h File 2.15 KB 0644
string.h File 2.94 KB 0644
switch_to.h File 4.19 KB 0644
syscall.h File 3.57 KB 0644
termios.h File 2.89 KB 0644
thread_info.h File 6.63 KB 0644
time.h File 2.13 KB 0644
timex.h File 2.87 KB 0644
tlb.h File 1.09 KB 0644
tlbdebug.h File 403 B 0644
tlbex.h File 788 B 0644
tlbflush.h File 1.67 KB 0644
tlbmisc.h File 320 B 0644
topology.h File 619 B 0644
traps.h File 1.25 KB 0644
txx9irq.h File 743 B 0644
txx9pio.h File 592 B 0644
txx9tmr.h File 1.59 KB 0644
types.h File 487 B 0644
uaccess.h File 22.2 KB 0644
uasm.h File 9.18 KB 0644
unistd.h File 1.9 KB 0644
uprobes.h File 1.11 KB 0644
vdso.h File 3.72 KB 0644
vga.h File 1.26 KB 0644
vpe.h File 2.7 KB 0644
war.h File 7.48 KB 0644
watch.h File 827 B 0644
wbflush.h File 694 B 0644
yamon-dt.h File 1.88 KB 0644