Contributors: 15
Author Tokens Token Proportion Commits Commit Proportion
Ralf Baechle 128 31.07% 4 11.11%
Linus Torvalds (pre-git) 86 20.87% 11 30.56%
Alex Belits 61 14.81% 1 2.78%
Huang Pei 43 10.44% 2 5.56%
Yaliang Wang 23 5.58% 1 2.78%
Linus Torvalds 21 5.10% 2 5.56%
Mike Rapoport 17 4.13% 6 16.67%
Benjamin Herrenschmidt 7 1.70% 2 5.56%
Feiyang Chen 7 1.70% 1 2.78%
Andrew Morton 6 1.46% 1 2.78%
David Daney 6 1.46% 1 2.78%
James Hogan 2 0.49% 1 2.78%
Matthew Wilcox 2 0.49% 1 2.78%
Martin Schwidefsky 2 0.49% 1 2.78%
Mark Rutland 1 0.24% 1 2.78%
Total 412 36


/*
 * 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) 1994 - 2001, 2003 by Ralf Baechle
 * Copyright (C) 1999, 2000, 2001 Silicon Graphics, Inc.
 */
#ifndef _ASM_PGALLOC_H
#define _ASM_PGALLOC_H

#include <linux/highmem.h>
#include <linux/mm.h>
#include <linux/sched.h>

#define __HAVE_ARCH_PMD_ALLOC_ONE
#define __HAVE_ARCH_PUD_ALLOC_ONE
#define __HAVE_ARCH_PGD_FREE
#include <asm-generic/pgalloc.h>

static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
	pte_t *pte)
{
	set_pmd(pmd, __pmd((unsigned long)pte));
}

static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
	pgtable_t pte)
{
	set_pmd(pmd, __pmd((unsigned long)page_address(pte)));
}

/*
 * Initialize a new pmd table with invalid pointers.
 */
extern void pmd_init(void *addr);

#ifndef __PAGETABLE_PMD_FOLDED

static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
{
	set_pud(pud, __pud((unsigned long)pmd));
}
#endif

/*
 * Initialize a new pgd table with invalid pointers.
 */
extern void pgd_init(void *addr);
extern pgd_t *pgd_alloc(struct mm_struct *mm);

static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
{
	free_pages((unsigned long)pgd, PGD_TABLE_ORDER);
}

#define __pte_free_tlb(tlb,pte,address)			\
do {							\
	pgtable_pte_page_dtor(pte);			\
	tlb_remove_page((tlb), pte);			\
} while (0)

#ifndef __PAGETABLE_PMD_FOLDED

static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
{
	pmd_t *pmd;
	struct page *pg;

	pg = alloc_pages(GFP_KERNEL_ACCOUNT, PMD_TABLE_ORDER);
	if (!pg)
		return NULL;

	if (!pgtable_pmd_page_ctor(pg)) {
		__free_pages(pg, PMD_TABLE_ORDER);
		return NULL;
	}

	pmd = (pmd_t *)page_address(pg);
	pmd_init(pmd);
	return pmd;
}

#define __pmd_free_tlb(tlb, x, addr)	pmd_free((tlb)->mm, x)

#endif

#ifndef __PAGETABLE_PUD_FOLDED

static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long address)
{
	pud_t *pud;

	pud = (pud_t *) __get_free_pages(GFP_KERNEL, PUD_TABLE_ORDER);
	if (pud)
		pud_init(pud);
	return pud;
}

static inline void p4d_populate(struct mm_struct *mm, p4d_t *p4d, pud_t *pud)
{
	set_p4d(p4d, __p4d((unsigned long)pud));
}

#define __pud_free_tlb(tlb, x, addr)	pud_free((tlb)->mm, x)

#endif /* __PAGETABLE_PUD_FOLDED */

extern void pagetable_init(void);

#endif /* _ASM_PGALLOC_H */