1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_POWERPC_NOHASH_PGALLOC_H
3 #define _ASM_POWERPC_NOHASH_PGALLOC_H
6 #include <linux/slab.h>
8 extern void tlb_remove_table(struct mmu_gather *tlb, void *table);
10 extern void tlb_flush_pgtable(struct mmu_gather *tlb, unsigned long address);
12 /* 44x etc which is BOOKE not BOOK3E */
13 static inline void tlb_flush_pgtable(struct mmu_gather *tlb,
14 unsigned long address)
18 #endif /* !CONFIG_PPC_BOOK3E_64 */
20 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
22 return kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE),
23 pgtable_gfp_flags(mm, GFP_KERNEL));
26 static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
28 kmem_cache_free(PGT_CACHE(PGD_INDEX_SIZE), pgd);
32 #include <asm/nohash/64/pgalloc.h>
34 #include <asm/nohash/32/pgalloc.h>
37 static inline void pgtable_free(void *table, int shift)
40 pte_fragment_free((unsigned long *)table, 0);
42 BUG_ON(shift > MAX_PGTABLE_INDEX_SIZE);
43 kmem_cache_free(PGT_CACHE(shift), table);
47 #define get_hugepd_cache_index(x) (x)
49 static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, int shift)
51 unsigned long pgf = (unsigned long)table;
53 BUG_ON(shift > MAX_PGTABLE_INDEX_SIZE);
55 tlb_remove_table(tlb, (void *)pgf);
58 static inline void __tlb_remove_table(void *_table)
60 void *table = (void *)((unsigned long)_table & ~MAX_PGTABLE_INDEX_SIZE);
61 unsigned shift = (unsigned long)_table & MAX_PGTABLE_INDEX_SIZE;
63 pgtable_free(table, shift);
66 static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table,
67 unsigned long address)
69 tlb_flush_pgtable(tlb, address);
70 pgtable_free_tlb(tlb, table, 0);
72 #endif /* _ASM_POWERPC_NOHASH_PGALLOC_H */