cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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hugetlb.h (1609B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef _ASM_SPARC64_HUGETLB_H
      3#define _ASM_SPARC64_HUGETLB_H
      4
      5#include <asm/page.h>
      6
      7#ifdef CONFIG_HUGETLB_PAGE
      8struct pud_huge_patch_entry {
      9	unsigned int addr;
     10	unsigned int insn;
     11};
     12extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
     13#endif
     14
     15#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
     16void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
     17		     pte_t *ptep, pte_t pte);
     18
     19#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
     20pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
     21			      pte_t *ptep);
     22
     23#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
     24static inline pte_t huge_ptep_clear_flush(struct vm_area_struct *vma,
     25					  unsigned long addr, pte_t *ptep)
     26{
     27	return *ptep;
     28}
     29
     30#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
     31static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
     32					   unsigned long addr, pte_t *ptep)
     33{
     34	pte_t old_pte = *ptep;
     35	set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
     36}
     37
     38#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
     39static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
     40					     unsigned long addr, pte_t *ptep,
     41					     pte_t pte, int dirty)
     42{
     43	int changed = !pte_same(*ptep, pte);
     44	if (changed) {
     45		set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
     46		flush_tlb_page(vma, addr);
     47	}
     48	return changed;
     49}
     50
     51#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
     52void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
     53			    unsigned long end, unsigned long floor,
     54			    unsigned long ceiling);
     55
     56#include <asm-generic/hugetlb.h>
     57
     58#endif /* _ASM_SPARC64_HUGETLB_H */