Contributors: 9
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Matthew Wilcox |
82 |
32.28% |
4 |
20.00% |
| Linus Torvalds (pre-git) |
70 |
27.56% |
5 |
25.00% |
| Kevin Brodsky |
43 |
16.93% |
2 |
10.00% |
| Mike Rapoport |
34 |
13.39% |
4 |
20.00% |
| Helge Deller |
15 |
5.91% |
1 |
5.00% |
| Benjamin Herrenschmidt |
6 |
2.36% |
1 |
5.00% |
| Linus Torvalds |
2 |
0.79% |
1 |
5.00% |
| Greg Kroah-Hartman |
1 |
0.39% |
1 |
5.00% |
| Kirill A. Shutemov |
1 |
0.39% |
1 |
5.00% |
| Total |
254 |
|
20 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_PGALLOC_H
#define _ASM_PGALLOC_H
#include <linux/gfp.h>
#include <linux/mm.h>
#include <linux/threads.h>
#include <asm/processor.h>
#include <asm/fixmap.h>
#include <asm/cache.h>
#define __HAVE_ARCH_PMD_ALLOC_ONE
#include <asm-generic/pgalloc.h>
/* Allocate the top level pgd (page directory) */
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
return __pgd_alloc(mm, PGD_TABLE_ORDER);
}
#if CONFIG_PGTABLE_LEVELS == 3
/* Three Level Page Table Support for pmd's */
static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
{
set_pud(pud, __pud((PxD_FLAG_PRESENT | PxD_FLAG_VALID) +
(__u32)(__pa((unsigned long)pmd) >> PxD_VALUE_SHIFT)));
}
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
{
struct ptdesc *ptdesc;
gfp_t gfp = GFP_PGTABLE_USER;
if (mm == &init_mm)
gfp = GFP_PGTABLE_KERNEL;
ptdesc = pagetable_alloc(gfp, PMD_TABLE_ORDER);
if (!ptdesc)
return NULL;
if (!pagetable_pmd_ctor(ptdesc)) {
pagetable_free(ptdesc);
return NULL;
}
return ptdesc_address(ptdesc);
}
#endif
static inline void
pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
{
set_pmd(pmd, __pmd((PxD_FLAG_PRESENT | PxD_FLAG_VALID)
+ (__u32)(__pa((unsigned long)pte) >> PxD_VALUE_SHIFT)));
}
#define pmd_populate(mm, pmd, pte_page) \
pmd_populate_kernel(mm, pmd, page_address(pte_page))
#endif