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#ifndef _SPARC_PGALLOC_H
 2#define _SPARC_PGALLOC_H
 3
 4#include <linux/kernel.h>
 5#include <linux/sched.h>
 6
 7#include <asm/pgtsrmmu.h>
 8#include <asm/pgtable.h>
 9#include <asm/vaddrs.h>
10#include <asm/page.h>
11
12struct page;
13
14void *srmmu_get_nocache(int size, int align);
15void srmmu_free_nocache(void *addr, int size);
16
17#define check_pgt_cache()	do { } while (0)
18
19pgd_t *get_pgd_fast(void);
20static inline void free_pgd_fast(pgd_t *pgd)
21{
22	srmmu_free_nocache(pgd, SRMMU_PGD_TABLE_SIZE);
23}
24
25#define pgd_free(mm, pgd)	free_pgd_fast(pgd)
26#define pgd_alloc(mm)	get_pgd_fast()
27
28static inline void pgd_set(pgd_t * pgdp, pmd_t * pmdp)
29{
30	unsigned long pa = __nocache_pa((unsigned long)pmdp);
31
32	set_pte((pte_t *)pgdp, (SRMMU_ET_PTD | (pa >> 4)));
33}
34
35#define pgd_populate(MM, PGD, PMD)      pgd_set(PGD, PMD)
36
37static inline pmd_t *pmd_alloc_one(struct mm_struct *mm,
38				   unsigned long address)
39{
40	return srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE,
41				 SRMMU_PMD_TABLE_SIZE);
42}
43
44static inline void free_pmd_fast(pmd_t * pmd)
45{
46	srmmu_free_nocache(pmd, SRMMU_PMD_TABLE_SIZE);
47}
48
49#define pmd_free(mm, pmd)		free_pmd_fast(pmd)
50#define __pmd_free_tlb(tlb, pmd, addr)	pmd_free((tlb)->mm, pmd)
51
52void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep);
53#define pmd_pgtable(pmd) pmd_page(pmd)
54
55void pmd_set(pmd_t *pmdp, pte_t *ptep);
56#define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE)
57
58pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address);
59
60static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
61					  unsigned long address)
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 */