mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-26 00:25:33 +07:00
9849a5697d
If an architecture uses 4level-fixup.h we don't need to do anything as it includes 5level-fixup.h. If an architecture uses pgtable-nop*d.h, define __ARCH_USE_5LEVEL_HACK before inclusion of the header. It makes asm-generic code to use 5level-fixup.h. If an architecture has 4-level paging or folds levels on its own, include 5level-fixup.h directly. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
78 lines
2.4 KiB
C
78 lines
2.4 KiB
C
/*
|
|
* Copyright (C) 2013-15 Synopsys, Inc. (www.synopsys.com)
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
|
|
#ifndef _ASM_ARC_HUGEPAGE_H
|
|
#define _ASM_ARC_HUGEPAGE_H
|
|
|
|
#include <linux/types.h>
|
|
#define __ARCH_USE_5LEVEL_HACK
|
|
#include <asm-generic/pgtable-nopmd.h>
|
|
|
|
static inline pte_t pmd_pte(pmd_t pmd)
|
|
{
|
|
return __pte(pmd_val(pmd));
|
|
}
|
|
|
|
static inline pmd_t pte_pmd(pte_t pte)
|
|
{
|
|
return __pmd(pte_val(pte));
|
|
}
|
|
|
|
#define pmd_wrprotect(pmd) pte_pmd(pte_wrprotect(pmd_pte(pmd)))
|
|
#define pmd_mkwrite(pmd) pte_pmd(pte_mkwrite(pmd_pte(pmd)))
|
|
#define pmd_mkdirty(pmd) pte_pmd(pte_mkdirty(pmd_pte(pmd)))
|
|
#define pmd_mkold(pmd) pte_pmd(pte_mkold(pmd_pte(pmd)))
|
|
#define pmd_mkyoung(pmd) pte_pmd(pte_mkyoung(pmd_pte(pmd)))
|
|
#define pmd_mkhuge(pmd) pte_pmd(pte_mkhuge(pmd_pte(pmd)))
|
|
#define pmd_mknotpresent(pmd) pte_pmd(pte_mknotpresent(pmd_pte(pmd)))
|
|
#define pmd_mkclean(pmd) pte_pmd(pte_mkclean(pmd_pte(pmd)))
|
|
|
|
#define pmd_write(pmd) pte_write(pmd_pte(pmd))
|
|
#define pmd_young(pmd) pte_young(pmd_pte(pmd))
|
|
#define pmd_pfn(pmd) pte_pfn(pmd_pte(pmd))
|
|
#define pmd_dirty(pmd) pte_dirty(pmd_pte(pmd))
|
|
|
|
#define mk_pmd(page, prot) pte_pmd(mk_pte(page, prot))
|
|
|
|
#define pmd_trans_huge(pmd) (pmd_val(pmd) & _PAGE_HW_SZ)
|
|
|
|
#define pfn_pmd(pfn, prot) (__pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot)))
|
|
|
|
static inline pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot)
|
|
{
|
|
/*
|
|
* open-coded pte_modify() with additional retaining of HW_SZ bit
|
|
* so that pmd_trans_huge() remains true for this PMD
|
|
*/
|
|
return __pmd((pmd_val(pmd) & (_PAGE_CHG_MASK | _PAGE_HW_SZ)) | pgprot_val(newprot));
|
|
}
|
|
|
|
static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
|
|
pmd_t *pmdp, pmd_t pmd)
|
|
{
|
|
*pmdp = pmd;
|
|
}
|
|
|
|
extern void update_mmu_cache_pmd(struct vm_area_struct *vma, unsigned long addr,
|
|
pmd_t *pmd);
|
|
|
|
/* Generic variants assume pgtable_t is struct page *, hence need for these */
|
|
#define __HAVE_ARCH_PGTABLE_DEPOSIT
|
|
extern void pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp,
|
|
pgtable_t pgtable);
|
|
|
|
#define __HAVE_ARCH_PGTABLE_WITHDRAW
|
|
extern pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp);
|
|
|
|
#define __HAVE_ARCH_FLUSH_PMD_TLB_RANGE
|
|
extern void flush_pmd_tlb_range(struct vm_area_struct *vma, unsigned long start,
|
|
unsigned long end);
|
|
|
|
#endif
|