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/*
 * Copyright (C) 2013-15 Synopsys, Inc. (www.synopsys.com)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */


#ifndef _ASM_ARC_HUGEPAGE_H
#define _ASM_ARC_HUGEPAGE_H

#include <linux/types.h>
#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>

static inline pte_t pmd_pte(pmd_t pmd)
{
	return __pte(pmd_val(pmd));
}

static inline pmd_t pte_pmd(pte_t pte)
{
	return __pmd(pte_val(pte));
}

#define pmd_wrprotect(pmd)	pte_pmd(pte_wrprotect(pmd_pte(pmd)))
#define pmd_mkwrite(pmd)	pte_pmd(pte_mkwrite(pmd_pte(pmd)))
#define pmd_mkdirty(pmd)	pte_pmd(pte_mkdirty(pmd_pte(pmd)))
#define pmd_mkold(pmd)		pte_pmd(pte_mkold(pmd_pte(pmd)))
#define pmd_mkyoung(pmd)	pte_pmd(pte_mkyoung(pmd_pte(pmd)))
#define pmd_mkhuge(pmd)		pte_pmd(pte_mkhuge(pmd_pte(pmd)))
#define pmd_mknotpresent(pmd)	pte_pmd(pte_mknotpresent(pmd_pte(pmd)))
#define pmd_mkclean(pmd)	pte_pmd(pte_mkclean(pmd_pte(pmd)))

#define pmd_write(pmd)		pte_write(pmd_pte(pmd))
#define pmd_young(pmd)		pte_young(pmd_pte(pmd))
#define pmd_pfn(pmd)		pte_pfn(pmd_pte(pmd))
#define pmd_dirty(pmd)		pte_dirty(pmd_pte(pmd))

#define mk_pmd(page, prot)	pte_pmd(mk_pte(page, prot))

#define pmd_trans_huge(pmd)	(pmd_val(pmd) & _PAGE_HW_SZ)

#define pfn_pmd(pfn, prot)	(__pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot)))

static inline pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot)
{
        /*
         * open-coded pte_modify() with additional retaining of HW_SZ bit
         * so that pmd_trans_huge() remains true for this PMD
         */
        return __pmd((pmd_val(pmd) & (_PAGE_CHG_MASK | _PAGE_HW_SZ)) | pgprot_val(newprot));
}

static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
			      pmd_t *pmdp, pmd_t pmd)
{
	*pmdp = pmd;
}

extern void update_mmu_cache_pmd(struct vm_area_struct *vma, unsigned long addr,
				 pmd_t *pmd);

/* Generic variants assume pgtable_t is struct page *, hence need for these */
#define __HAVE_ARCH_PGTABLE_DEPOSIT
extern void pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp,
				       pgtable_t pgtable);

#define __HAVE_ARCH_PGTABLE_WITHDRAW
extern pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp);

#define __HAVE_ARCH_FLUSH_PMD_TLB_RANGE
extern void flush_pmd_tlb_range(struct vm_area_struct *vma, unsigned long start,
				unsigned long end);

#endif

Filemanager

Name Type Size Permission Actions
Kbuild File 681 B 0644
arcregs.h File 8.59 KB 0644
asm-offsets.h File 311 B 0644
atomic.h File 15.14 KB 0644
barrier.h File 1.75 KB 0644
bitops.h File 9.81 KB 0644
bug.h File 938 B 0644
cache.h File 3.77 KB 0644
cacheflush.h File 3.88 KB 0644
checksum.h File 2.45 KB 0644
cmpxchg.h File 5.4 KB 0644
current.h File 695 B 0644
delay.h File 1.99 KB 0644
disasm.h File 3.87 KB 0644
dma-mapping.h File 734 B 0644
dma.h File 459 B 0644
dwarf.h File 892 B 0644
elf.h File 2.15 KB 0644
entry-arcv2.h File 4.85 KB 0644
entry-compact.h File 9.29 KB 0644
entry.h File 6.73 KB 0644
exec.h File 410 B 0644
fb.h File 411 B 0644
futex.h File 3.67 KB 0644
highmem.h File 1.46 KB 0644
hugepage.h File 2.41 KB 0644
io.h File 6.42 KB 0644
irq.h File 825 B 0644
irqflags-arcv2.h File 3.45 KB 0644
irqflags-compact.h File 4.25 KB 0644
irqflags.h File 509 B 0644
kdebug.h File 400 B 0644
kgdb.h File 1.35 KB 0644
kmap_types.h File 489 B 0644
kprobes.h File 1.37 KB 0644
linkage.h File 1.42 KB 0644
mach_desc.h File 2.06 KB 0644
mmu.h File 2.44 KB 0644
mmu_context.h File 5.67 KB 0644
mmzone.h File 989 B 0644
module.h File 661 B 0644
page.h File 2.99 KB 0644
pci.h File 705 B 0644
perf_event.h File 6.86 KB 0644
pgalloc.h File 3.79 KB 0644
pgtable.h File 14.2 KB 0644
processor.h File 4.69 KB 0644
ptrace.h File 3.87 KB 0644
sections.h File 407 B 0644
segment.h File 612 B 0644
serial.h File 644 B 0644
setup.h File 1.18 KB 0644
shmparam.h File 442 B 0644
smp.h File 4.25 KB 0644
spinlock.h File 8.79 KB 0644
spinlock_types.h File 1.03 KB 0644
stacktrace.h File 1.29 KB 0644
string.h File 1.15 KB 0644
switch_to.h File 1.17 KB 0644
syscall.h File 1.57 KB 0644
syscalls.h File 653 B 0644
thread_info.h File 3.39 KB 0644
timex.h File 508 B 0644
tlb-mmu1.h File 3.48 KB 0644
tlb.h File 1.23 KB 0644
tlbflush.h File 1.76 KB 0644
uaccess.h File 18.45 KB 0644
unaligned.h File 771 B 0644
unwind.h File 3.51 KB 0644