xref: /openbmc/linux/arch/powerpc/include/asm/nohash/64/pgalloc.h (revision 2db2008e)

/* 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 */