Something went wrong. Try again.
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Something went wrong. Try again.
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768/* SPDX-License-Identifier: GPL-2.0-only *//* * include/asm-xtensa/pgalloc.h * * Copyright (C) 2001-2007 Tensilica Inc. */
#ifndef _XTENSA_PGALLOC_H#define _XTENSA_PGALLOC_H
#ifdef CONFIG_MMU#include <linux/highmem.h>#include <linux/slab.h>
#define __HAVE_ARCH_PTE_ALLOC_ONE_KERNEL#define __HAVE_ARCH_PTE_ALLOC_ONE#include <asm-generic/pgalloc.h>
/* * Allocating and freeing a pmd is trivial: the 1-entry pmd is * inside the pgd, so has no extra memory associated with it. */
#define pmd_populate_kernel(mm, pmdp, ptep) \ (pmd_val(*(pmdp)) = ((unsigned long)ptep))#define pmd_populate(mm, pmdp, page) \ (pmd_val(*(pmdp)) = ((unsigned long)page_to_virt(page)))
static inline pgd_t*pgd_alloc(struct mm_struct *mm){ return __pgd_alloc(mm, 0);}
static inline void ptes_clear(pte_t *ptep){ int i;
for (i = 0; i < PTRS_PER_PTE; i++) pte_clear(NULL, 0, ptep + i);}
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm){ pte_t *ptep;
ptep = (pte_t *)__pte_alloc_one_kernel(mm); if (!ptep) return NULL; ptes_clear(ptep); return ptep;}
static inline pgtable_t pte_alloc_one(struct mm_struct *mm){ struct page *page;
page = __pte_alloc_one(mm, GFP_PGTABLE_USER); if (!page) return NULL; ptes_clear(page_address(page)); return page;}
#endif /* CONFIG_MMU */
#endif /* _XTENSA_PGALLOC_H */