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/*
 * Copyright 2010 Tilera Corporation. All Rights Reserved.
 *
 *   This program is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU General Public License
 *   as published by the Free Software Foundation, version 2.
 *
 *   This program is distributed in the hope that it will be useful, but
 *   WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
 *   NON INFRINGEMENT.  See the GNU General Public License for
 *   more details.
 */

#ifndef _ASM_TILE_HUGETLB_H
#define _ASM_TILE_HUGETLB_H

#include <asm/page.h>
#include <asm-generic/hugetlb.h>


static inline int is_hugepage_only_range(struct mm_struct *mm,
					 unsigned long addr,
					 unsigned long len) {
	return 0;
}

/*
 * If the arch doesn't supply something else, assume that hugepage
 * size aligned regions are ok without further preparation.
 */
static inline int prepare_hugepage_range(struct file *file,
					 unsigned long addr, unsigned long len)
{
	struct hstate *h = hstate_file(file);
	if (len & ~huge_page_mask(h))
		return -EINVAL;
	if (addr & ~huge_page_mask(h))
		return -EINVAL;
	return 0;
}

static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
					  unsigned long addr, unsigned long end,
					  unsigned long floor,
					  unsigned long ceiling)
{
	free_pgd_range(tlb, addr, end, floor, ceiling);
}

static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
				   pte_t *ptep, pte_t pte)
{
	set_pte(ptep, pte);
}

static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
					    unsigned long addr, pte_t *ptep)
{
	return ptep_get_and_clear(mm, addr, ptep);
}

static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
					 unsigned long addr, pte_t *ptep)
{
	ptep_clear_flush(vma, addr, ptep);
}

static inline int huge_pte_none(pte_t pte)
{
	return pte_none(pte);
}

static inline pte_t huge_pte_wrprotect(pte_t pte)
{
	return pte_wrprotect(pte);
}

static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
					   unsigned long addr, pte_t *ptep)
{
	ptep_set_wrprotect(mm, addr, ptep);
}

static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
					     unsigned long addr, pte_t *ptep,
					     pte_t pte, int dirty)
{
	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
}

static inline pte_t huge_ptep_get(pte_t *ptep)
{
	return *ptep;
}

static inline void arch_clear_hugepage_flags(struct page *page)
{
}

#ifdef CONFIG_HUGETLB_SUPER_PAGES
static inline pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
				       struct page *page, int writable)
{
	size_t pagesize = huge_page_size(hstate_vma(vma));
	if (pagesize != PUD_SIZE && pagesize != PMD_SIZE)
		entry = pte_mksuper(entry);
	return entry;
}
#define arch_make_huge_pte arch_make_huge_pte

/* Sizes to scale up page size for PTEs with HV_PTE_SUPER bit. */
enum {
	HUGE_SHIFT_PGDIR = 0,
	HUGE_SHIFT_PMD = 1,
	HUGE_SHIFT_PAGE = 2,
	HUGE_SHIFT_ENTRIES
};
extern int huge_shift[HUGE_SHIFT_ENTRIES];
#endif

#endif /* _ASM_TILE_HUGETLB_H */

Filemanager

Name Type Size Permission Actions
Kbuild File 439 B 0644
asm-offsets.h File 35 B 0644
atomic.h File 5.14 KB 0644
atomic_32.h File 8.91 KB 0644
atomic_64.h File 5.51 KB 0644
backtrace.h File 3.98 KB 0644
barrier.h File 2.89 KB 0644
bitops.h File 2.37 KB 0644
bitops_32.h File 4.01 KB 0644
bitops_64.h File 2.67 KB 0644
cache.h File 2.6 KB 0644
cacheflush.h File 4.94 KB 0644
checksum.h File 1.23 KB 0644
cmpxchg.h File 3.47 KB 0644
compat.h File 7.38 KB 0644
current.h File 947 B 0644
delay.h File 1.1 KB 0644
device.h File 978 B 0644
div64.h File 319 B 0644
dma-mapping.h File 1.82 KB 0644
dma.h File 762 B 0644
elf.h File 5.42 KB 0644
fixmap.h File 2.73 KB 0644
ftrace.h File 1.08 KB 0644
futex.h File 4.23 KB 0644
hardirq.h File 1.28 KB 0644
hardwall.h File 1.08 KB 0644
highmem.h File 2.08 KB 0644
homecache.h File 4.21 KB 0644
hugetlb.h File 3.04 KB 0644
hv_driver.h File 1.92 KB 0644
ide.h File 758 B 0644
insn.h File 1.79 KB 0644
io.h File 12.43 KB 0644
irq.h File 3.11 KB 0644
irq_work.h File 283 B 0644
irqflags.h File 10.55 KB 0644
jump_label.h File 1.47 KB 0644
kdebug.h File 769 B 0644
kexec.h File 2.23 KB 0644
kgdb.h File 1.99 KB 0644
kmap_types.h File 1.02 KB 0644
kprobes.h File 2.19 KB 0644
linkage.h File 1.46 KB 0644
mmu.h File 965 B 0644
mmu_context.h File 4.5 KB 0644
mmzone.h File 2.07 KB 0644
module.h File 1.12 KB 0644
page.h File 10.32 KB 0644
pci.h File 6.58 KB 0644
percpu.h File 1.79 KB 0644
perf_event.h File 766 B 0644
pgalloc.h File 4.76 KB 0644
pgtable.h File 15.66 KB 0644
pgtable_32.h File 4.08 KB 0644
pgtable_64.h File 5.11 KB 0644
pmc.h File 2.15 KB 0644
processor.h File 10.62 KB 0644
ptrace.h File 2.96 KB 0644
sections.h File 1.37 KB 0644
setup.h File 1.63 KB 0644
sigframe.h File 956 B 0644
signal.h File 1.07 KB 0644
smp.h File 3.98 KB 0644
spinlock.h File 741 B 0644
spinlock_32.h File 2.9 KB 0644
spinlock_64.h File 3.88 KB 0644
spinlock_types.h File 1.58 KB 0644
stack.h File 2.59 KB 0644
string.h File 1.19 KB 0644
switch_to.h File 2.75 KB 0644
syscall.h File 2.88 KB 0644
syscalls.h File 2.35 KB 0644
thread_info.h File 5.54 KB 0644
tile-desc.h File 650 B 0644
tile-desc_32.h File 12.54 KB 0644
tile-desc_64.h File 10.83 KB 0644
timex.h File 1.71 KB 0644
tlb.h File 878 B 0644
tlbflush.h File 3.99 KB 0644
topology.h File 1.52 KB 0644
traps.h File 2.44 KB 0644
uaccess.h File 12.77 KB 0644
unaligned.h File 1.56 KB 0644
unistd.h File 777 B 0644
user.h File 717 B 0644
vdso.h File 1.84 KB 0644
vga.h File 1.05 KB 0644
word-at-a-time.h File 1.07 KB 0644