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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_CSKY_PGALLOC_H#define __ASM_CSKY_PGALLOC_H
#include <linux/highmem.h>#include <linux/mm.h>#include <linux/sched.h>
#define __HAVE_ARCH_PTE_ALLOC_ONE_KERNEL#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(__pa(pte)));}
static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, pgtable_t pte){ set_pmd(pmd, __pmd(__pa(page_address(pte))));}
extern void pgd_init(unsigned long *p);
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm){ pte_t *pte; unsigned long i;
pte = __pte_alloc_one_kernel(mm); if (!pte) return NULL;
for (i = 0; i < PAGE_SIZE/sizeof(pte_t); i++) (pte + i)->pte_low = _PAGE_GLOBAL;
return pte;}
static inline pgd_t *pgd_alloc(struct mm_struct *mm){ pgd_t *ret; pgd_t *init;
ret = __pgd_alloc(mm, 0); if (ret) { init = pgd_offset(&init_mm, 0UL); pgd_init((unsigned long *)ret); memcpy(ret + USER_PTRS_PER_PGD, init + USER_PTRS_PER_PGD, (PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t)); /* prevent out of order excute */ smp_mb();#ifdef CONFIG_CPU_NEED_TLBSYNC dcache_wb_range((unsigned int)ret, (unsigned int)(ret + PTRS_PER_PGD));#endif }
return ret;}
#define __pte_free_tlb(tlb, pte, address) \ tlb_remove_ptdesc((tlb), page_ptdesc(pte))
extern void pagetable_init(void);extern void mmu_init(unsigned long min_pfn, unsigned long max_pfn);extern void pre_trap_init(void);
#endif /* __ASM_CSKY_PGALLOC_H */