mirror of
https://github.com/torvalds/linux
synced 2024-10-19 17:58:44 +00:00
5be9934328
There are multiple similar definitions for arch_clear_hugepage_flags() on various platforms. Lets just add it's generic fallback definition for platforms that do not override. This help reduce code duplication. Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Mike Kravetz <mike.kravetz@oracle.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: Helge Deller <deller@gmx.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Rich Felker <dalias@libc.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Link: http://lkml.kernel.org/r/1588907271-11920-4-git-send-email-anshuman.khandual@arm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _ASM_SPARC64_HUGETLB_H
|
|
#define _ASM_SPARC64_HUGETLB_H
|
|
|
|
#include <asm/page.h>
|
|
|
|
#ifdef CONFIG_HUGETLB_PAGE
|
|
struct pud_huge_patch_entry {
|
|
unsigned int addr;
|
|
unsigned int insn;
|
|
};
|
|
extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
|
|
#endif
|
|
|
|
#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
|
|
void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
|
|
pte_t *ptep, pte_t pte);
|
|
|
|
#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
|
|
pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
|
|
pte_t *ptep);
|
|
|
|
#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
|
|
static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
|
|
unsigned long addr, pte_t *ptep)
|
|
{
|
|
}
|
|
|
|
#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
|
|
static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
|
|
unsigned long addr, pte_t *ptep)
|
|
{
|
|
pte_t old_pte = *ptep;
|
|
set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
|
|
}
|
|
|
|
#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
|
|
static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
|
|
unsigned long addr, pte_t *ptep,
|
|
pte_t pte, int dirty)
|
|
{
|
|
int changed = !pte_same(*ptep, pte);
|
|
if (changed) {
|
|
set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
|
|
flush_tlb_page(vma, addr);
|
|
}
|
|
return changed;
|
|
}
|
|
|
|
#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
|
|
void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
|
|
unsigned long end, unsigned long floor,
|
|
unsigned long ceiling);
|
|
|
|
#include <asm-generic/hugetlb.h>
|
|
|
|
#endif /* _ASM_SPARC64_HUGETLB_H */
|