1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _SPARC_PGALLOC_H
 3#define _SPARC_PGALLOC_H
 4
 5#include <linux/kernel.h>
 6#include <linux/sched.h>
 7
 8#include <asm/pgtsrmmu.h>
 9#include <asm/pgtable.h>
10#include <asm/vaddrs.h>
11#include <asm/page.h>
12
13struct page;
14
15void *srmmu_get_nocache(int size, int align);
16void srmmu_free_nocache(void *addr, int size);
17
18extern struct resource sparc_iomap;
19
 
 
20pgd_t *get_pgd_fast(void);
21static inline void free_pgd_fast(pgd_t *pgd)
22{
23	srmmu_free_nocache(pgd, SRMMU_PGD_TABLE_SIZE);
24}
25
26#define pgd_free(mm, pgd)	free_pgd_fast(pgd)
27#define pgd_alloc(mm)	get_pgd_fast()
28
29static inline void pgd_set(pgd_t * pgdp, pmd_t * pmdp)
30{
31	unsigned long pa = __nocache_pa(pmdp);
32
33	set_pte((pte_t *)pgdp, __pte((SRMMU_ET_PTD | (pa >> 4))));
34}
35
36#define pgd_populate(MM, PGD, PMD)      pgd_set(PGD, PMD)
37
38static inline pmd_t *pmd_alloc_one(struct mm_struct *mm,
39				   unsigned long address)
40{
41	return srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE,
42				 SRMMU_PMD_TABLE_SIZE);
43}
44
45static inline void free_pmd_fast(pmd_t * pmd)
46{
47	srmmu_free_nocache(pmd, SRMMU_PMD_TABLE_SIZE);
48}
49
50#define pmd_free(mm, pmd)		free_pmd_fast(pmd)
51#define __pmd_free_tlb(tlb, pmd, addr)	pmd_free((tlb)->mm, pmd)
52
53void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep);
54#define pmd_pgtable(pmd) pmd_page(pmd)
55
56void pmd_set(pmd_t *pmdp, pte_t *ptep);
57#define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE)
58
59pgtable_t pte_alloc_one(struct mm_struct *mm);
60
61static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
 
62{
63	return srmmu_get_nocache(PTE_SIZE, PTE_SIZE);
64}
65
66
67static inline void free_pte_fast(pte_t *pte)
68{
69	srmmu_free_nocache(pte, PTE_SIZE);
70}
71
72#define pte_free_kernel(mm, pte)	free_pte_fast(pte)
73
74void pte_free(struct mm_struct * mm, pgtable_t pte);
75#define __pte_free_tlb(tlb, pte, addr)	pte_free((tlb)->mm, pte)
76
77#endif /* _SPARC_PGALLOC_H */

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _SPARC_PGALLOC_H
 3#define _SPARC_PGALLOC_H
 4
 5#include <linux/kernel.h>
 6#include <linux/sched.h>
 7
 8#include <asm/pgtsrmmu.h>
 9#include <asm/pgtable.h>
10#include <asm/vaddrs.h>
11#include <asm/page.h>
12
13struct page;
14
15void *srmmu_get_nocache(int size, int align);
16void srmmu_free_nocache(void *addr, int size);
17
18extern struct resource sparc_iomap;
19
20#define check_pgt_cache()	do { } while (0)
21
22pgd_t *get_pgd_fast(void);
23static inline void free_pgd_fast(pgd_t *pgd)
24{
25	srmmu_free_nocache(pgd, SRMMU_PGD_TABLE_SIZE);
26}
27
28#define pgd_free(mm, pgd)	free_pgd_fast(pgd)
29#define pgd_alloc(mm)	get_pgd_fast()
30
31static inline void pgd_set(pgd_t * pgdp, pmd_t * pmdp)
32{
33	unsigned long pa = __nocache_pa(pmdp);
34
35	set_pte((pte_t *)pgdp, __pte((SRMMU_ET_PTD | (pa >> 4))));
36}
37
38#define pgd_populate(MM, PGD, PMD)      pgd_set(PGD, PMD)
39
40static inline pmd_t *pmd_alloc_one(struct mm_struct *mm,
41				   unsigned long address)
42{
43	return srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE,
44				 SRMMU_PMD_TABLE_SIZE);
45}
46
47static inline void free_pmd_fast(pmd_t * pmd)
48{
49	srmmu_free_nocache(pmd, SRMMU_PMD_TABLE_SIZE);
50}
51
52#define pmd_free(mm, pmd)		free_pmd_fast(pmd)
53#define __pmd_free_tlb(tlb, pmd, addr)	pmd_free((tlb)->mm, pmd)
54
55void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep);
56#define pmd_pgtable(pmd) pmd_page(pmd)
57
58void pmd_set(pmd_t *pmdp, pte_t *ptep);
59#define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE)
60
61pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address);
62
63static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
64					  unsigned long address)
65{
66	return srmmu_get_nocache(PTE_SIZE, PTE_SIZE);
67}
68
69
70static inline void free_pte_fast(pte_t *pte)
71{
72	srmmu_free_nocache(pte, PTE_SIZE);
73}
74
75#define pte_free_kernel(mm, pte)	free_pte_fast(pte)
76
77void pte_free(struct mm_struct * mm, pgtable_t pte);
78#define __pte_free_tlb(tlb, pte, addr)	pte_free((tlb)->mm, pte)
79
80#endif /* _SPARC_PGALLOC_H */