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Diffstat (limited to '')
-rw-r--r-- | arch/powerpc/include/asm/nohash/64/pgalloc.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/nohash/64/pgalloc.h b/arch/powerpc/include/asm/nohash/64/pgalloc.h new file mode 100644 index 000000000..e50b211be --- /dev/null +++ b/arch/powerpc/include/asm/nohash/64/pgalloc.h @@ -0,0 +1,67 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#ifndef _ASM_POWERPC_PGALLOC_64_H +#define _ASM_POWERPC_PGALLOC_64_H +/* + */ + +#include <linux/slab.h> +#include <linux/cpumask.h> +#include <linux/percpu.h> + +struct vmemmap_backing { + struct vmemmap_backing *list; + unsigned long phys; + unsigned long virt_addr; +}; +extern struct vmemmap_backing *vmemmap_list; + +static inline void p4d_populate(struct mm_struct *mm, p4d_t *p4d, pud_t *pud) +{ + p4d_set(p4d, (unsigned long)pud); +} + +static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) +{ + return kmem_cache_alloc(PGT_CACHE(PUD_INDEX_SIZE), + pgtable_gfp_flags(mm, GFP_KERNEL)); +} + +static inline void pud_free(struct mm_struct *mm, pud_t *pud) +{ + kmem_cache_free(PGT_CACHE(PUD_INDEX_SIZE), pud); +} + +static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) +{ + pud_set(pud, (unsigned long)pmd); +} + +static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, + pte_t *pte) +{ + pmd_set(pmd, (unsigned long)pte); +} + +static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, + pgtable_t pte_page) +{ + pmd_set(pmd, (unsigned long)pte_page); +} + +static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) +{ + return kmem_cache_alloc(PGT_CACHE(PMD_CACHE_INDEX), + pgtable_gfp_flags(mm, GFP_KERNEL)); +} + +static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) +{ + kmem_cache_free(PGT_CACHE(PMD_CACHE_INDEX), pmd); +} + +#define __pmd_free_tlb(tlb, pmd, addr) \ + pgtable_free_tlb(tlb, pmd, PMD_CACHE_INDEX) +#define __pud_free_tlb(tlb, pud, addr) \ + pgtable_free_tlb(tlb, pud, PUD_INDEX_SIZE) + +#endif /* _ASM_POWERPC_PGALLOC_64_H */ |