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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pgalloc.h (1619B)

      1/* SPDX-License-Identifier: GPL-2.0-or-later */
      2#ifndef _ASM_POWERPC_PGALLOC_64_H
      3#define _ASM_POWERPC_PGALLOC_64_H
      4/*
      5 */
      6
      7#include <linux/slab.h>
      8#include <linux/cpumask.h>
      9#include <linux/percpu.h>
     10
     11struct vmemmap_backing {
     12	struct vmemmap_backing *list;
     13	unsigned long phys;
     14	unsigned long virt_addr;
     15};
     16extern struct vmemmap_backing *vmemmap_list;
     17
     18#define p4d_populate(MM, P4D, PUD)	p4d_set(P4D, (unsigned long)PUD)
     19
     20static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
     21{
     22	return kmem_cache_alloc(PGT_CACHE(PUD_INDEX_SIZE),
     23			pgtable_gfp_flags(mm, GFP_KERNEL));
     24}
     25
     26static inline void pud_free(struct mm_struct *mm, pud_t *pud)
     27{
     28	kmem_cache_free(PGT_CACHE(PUD_INDEX_SIZE), pud);
     29}
     30
     31static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
     32{
     33	pud_set(pud, (unsigned long)pmd);
     34}
     35
     36static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
     37				       pte_t *pte)
     38{
     39	pmd_set(pmd, (unsigned long)pte);
     40}
     41
     42static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
     43				pgtable_t pte_page)
     44{
     45	pmd_set(pmd, (unsigned long)pte_page);
     46}
     47
     48static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
     49{
     50	return kmem_cache_alloc(PGT_CACHE(PMD_CACHE_INDEX),
     51			pgtable_gfp_flags(mm, GFP_KERNEL));
     52}
     53
     54static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
     55{
     56	kmem_cache_free(PGT_CACHE(PMD_CACHE_INDEX), pmd);
     57}
     58
     59#define __pmd_free_tlb(tlb, pmd, addr)		      \
     60	pgtable_free_tlb(tlb, pmd, PMD_CACHE_INDEX)
     61#define __pud_free_tlb(tlb, pud, addr)		      \
     62	pgtable_free_tlb(tlb, pud, PUD_INDEX_SIZE)
     63
     64#endif /* _ASM_POWERPC_PGALLOC_64_H */