1/* SPDX-License-Identifier: GPL-2.0 */
  2#ifndef _SPARC64_PGALLOC_H
  3#define _SPARC64_PGALLOC_H
  4
  5#include <linux/kernel.h>
  6#include <linux/sched.h>
  7#include <linux/mm.h>
  8#include <linux/slab.h>
  9
 10#include <asm/spitfire.h>
 11#include <asm/cpudata.h>
 12#include <asm/cacheflush.h>
 13#include <asm/page.h>
 14
 15/* Page table allocation/freeing. */
 16
 17extern struct kmem_cache *pgtable_cache;
 18
 19static inline void __pgd_populate(pgd_t *pgd, pud_t *pud)
 20{
 21	pgd_set(pgd, pud);
 22}
 23
 24#define pgd_populate(MM, PGD, PUD)	__pgd_populate(PGD, PUD)
 25
 26static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 27{
 28	return kmem_cache_alloc(pgtable_cache, GFP_KERNEL);
 29}
 30
 31static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 32{
 33	kmem_cache_free(pgtable_cache, pgd);
 34}
 35
 36static inline void __pud_populate(pud_t *pud, pmd_t *pmd)
 37{
 38	pud_set(pud, pmd);
 39}
 40
 41#define pud_populate(MM, PUD, PMD)	__pud_populate(PUD, PMD)
 42
 43static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
 44{
 45	return kmem_cache_alloc(pgtable_cache, GFP_KERNEL);
 46}
 47
 48static inline void pud_free(struct mm_struct *mm, pud_t *pud)
 49{
 50	kmem_cache_free(pgtable_cache, pud);
 51}
 52
 53static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
 54{
 55	return kmem_cache_alloc(pgtable_cache, GFP_KERNEL);
 56}
 57
 58static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 59{
 60	kmem_cache_free(pgtable_cache, pmd);
 61}
 62
 63pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 64			    unsigned long address);
 65pgtable_t pte_alloc_one(struct mm_struct *mm,
 66			unsigned long address);
 67void pte_free_kernel(struct mm_struct *mm, pte_t *pte);
 68void pte_free(struct mm_struct *mm, pgtable_t ptepage);
 69
 70#define pmd_populate_kernel(MM, PMD, PTE)	pmd_set(MM, PMD, PTE)
 71#define pmd_populate(MM, PMD, PTE)		pmd_set(MM, PMD, PTE)
 72#define pmd_pgtable(PMD)			((pte_t *)__pmd_page(PMD))
 73
 74#define check_pgt_cache()	do { } while (0)
 75
 76void pgtable_free(void *table, bool is_page);
 77
 78#ifdef CONFIG_SMP
 79
 80struct mmu_gather;
 81void tlb_remove_table(struct mmu_gather *, void *);
 82
 83static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, bool is_page)
 84{
 85	unsigned long pgf = (unsigned long)table;
 86	if (is_page)
 87		pgf |= 0x1UL;
 88	tlb_remove_table(tlb, (void *)pgf);
 89}
 90
 91static inline void __tlb_remove_table(void *_table)
 92{
 93	void *table = (void *)((unsigned long)_table & ~0x1UL);
 94	bool is_page = false;
 95
 96	if ((unsigned long)_table & 0x1UL)
 97		is_page = true;
 98	pgtable_free(table, is_page);
 99}
100#else /* CONFIG_SMP */
101static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, bool is_page)
102{
103	pgtable_free(table, is_page);
104}
105#endif /* !CONFIG_SMP */
106
107static inline void __pte_free_tlb(struct mmu_gather *tlb, pte_t *pte,
108				  unsigned long address)
109{
110	pgtable_free_tlb(tlb, pte, true);
111}
112
113#define __pmd_free_tlb(tlb, pmd, addr)		      \
114	pgtable_free_tlb(tlb, pmd, false)
115
116#define __pud_free_tlb(tlb, pud, addr)		      \
117	pgtable_free_tlb(tlb, pud, false)
118
119#endif /* _SPARC64_PGALLOC_H */

 
  1#ifndef _SPARC64_PGALLOC_H
  2#define _SPARC64_PGALLOC_H
  3
  4#include <linux/kernel.h>
  5#include <linux/sched.h>
  6#include <linux/mm.h>
  7#include <linux/slab.h>
  8
  9#include <asm/spitfire.h>
 10#include <asm/cpudata.h>
 11#include <asm/cacheflush.h>
 12#include <asm/page.h>
 13
 14/* Page table allocation/freeing. */
 15
 16extern struct kmem_cache *pgtable_cache;
 17
 18static inline void __pgd_populate(pgd_t *pgd, pud_t *pud)
 19{
 20	pgd_set(pgd, pud);
 21}
 22
 23#define pgd_populate(MM, PGD, PUD)	__pgd_populate(PGD, PUD)
 24
 25static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 26{
 27	return kmem_cache_alloc(pgtable_cache, GFP_KERNEL);
 28}
 29
 30static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 31{
 32	kmem_cache_free(pgtable_cache, pgd);
 33}
 34
 35static inline void __pud_populate(pud_t *pud, pmd_t *pmd)
 36{
 37	pud_set(pud, pmd);
 38}
 39
 40#define pud_populate(MM, PUD, PMD)	__pud_populate(PUD, PMD)
 41
 42static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
 43{
 44	return kmem_cache_alloc(pgtable_cache, GFP_KERNEL);
 45}
 46
 47static inline void pud_free(struct mm_struct *mm, pud_t *pud)
 48{
 49	kmem_cache_free(pgtable_cache, pud);
 50}
 51
 52static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
 53{
 54	return kmem_cache_alloc(pgtable_cache, GFP_KERNEL);
 55}
 56
 57static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 58{
 59	kmem_cache_free(pgtable_cache, pmd);
 60}
 61
 62pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 63			    unsigned long address);
 64pgtable_t pte_alloc_one(struct mm_struct *mm,
 65			unsigned long address);
 66void pte_free_kernel(struct mm_struct *mm, pte_t *pte);
 67void pte_free(struct mm_struct *mm, pgtable_t ptepage);
 68
 69#define pmd_populate_kernel(MM, PMD, PTE)	pmd_set(MM, PMD, PTE)
 70#define pmd_populate(MM, PMD, PTE)		pmd_set(MM, PMD, PTE)
 71#define pmd_pgtable(PMD)			((pte_t *)__pmd_page(PMD))
 72
 73#define check_pgt_cache()	do { } while (0)
 74
 75void pgtable_free(void *table, bool is_page);
 76
 77#ifdef CONFIG_SMP
 78
 79struct mmu_gather;
 80void tlb_remove_table(struct mmu_gather *, void *);
 81
 82static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, bool is_page)
 83{
 84	unsigned long pgf = (unsigned long)table;
 85	if (is_page)
 86		pgf |= 0x1UL;
 87	tlb_remove_table(tlb, (void *)pgf);
 88}
 89
 90static inline void __tlb_remove_table(void *_table)
 91{
 92	void *table = (void *)((unsigned long)_table & ~0x1UL);
 93	bool is_page = false;
 94
 95	if ((unsigned long)_table & 0x1UL)
 96		is_page = true;
 97	pgtable_free(table, is_page);
 98}
 99#else /* CONFIG_SMP */
100static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, bool is_page)
101{
102	pgtable_free(table, is_page);
103}
104#endif /* !CONFIG_SMP */
105
106static inline void __pte_free_tlb(struct mmu_gather *tlb, pte_t *pte,
107				  unsigned long address)
108{
109	pgtable_free_tlb(tlb, pte, true);
110}
111
112#define __pmd_free_tlb(tlb, pmd, addr)		      \
113	pgtable_free_tlb(tlb, pmd, false)
114
115#define __pud_free_tlb(tlb, pud, addr)		      \
116	pgtable_free_tlb(tlb, pud, false)
117
118#endif /* _SPARC64_PGALLOC_H */