89 lines
2.3 KiB
C
89 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _ASM_POWERPC_HUGETLB_H
|
|
#define _ASM_POWERPC_HUGETLB_H
|
|
|
|
#ifdef CONFIG_HUGETLB_PAGE
|
|
#include <asm/page.h>
|
|
|
|
#ifdef CONFIG_PPC_BOOK3S_64
|
|
#include <asm/book3s/64/hugetlb.h>
|
|
#elif defined(CONFIG_PPC_E500)
|
|
#include <asm/nohash/hugetlb-e500.h>
|
|
#elif defined(CONFIG_PPC_8xx)
|
|
#include <asm/nohash/32/hugetlb-8xx.h>
|
|
#endif /* CONFIG_PPC_BOOK3S_64 */
|
|
|
|
extern bool hugetlb_disabled;
|
|
|
|
static inline bool hugepages_supported(void)
|
|
{
|
|
if (hugetlb_disabled)
|
|
return false;
|
|
|
|
return HPAGE_SHIFT != 0;
|
|
}
|
|
#define hugepages_supported hugepages_supported
|
|
|
|
void __init hugetlbpage_init_defaultsize(void);
|
|
|
|
int slice_is_hugepage_only_range(struct mm_struct *mm, unsigned long addr,
|
|
unsigned long len);
|
|
|
|
static inline int is_hugepage_only_range(struct mm_struct *mm,
|
|
unsigned long addr,
|
|
unsigned long len)
|
|
{
|
|
if (IS_ENABLED(CONFIG_PPC_64S_HASH_MMU) && !radix_enabled())
|
|
return slice_is_hugepage_only_range(mm, addr, len);
|
|
return 0;
|
|
}
|
|
#define is_hugepage_only_range is_hugepage_only_range
|
|
|
|
#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
|
|
void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep,
|
|
pte_t pte, unsigned long sz);
|
|
|
|
#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
|
|
static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
|
|
unsigned long addr, pte_t *ptep,
|
|
unsigned long sz)
|
|
{
|
|
return __pte(pte_update(mm, addr, ptep, ~0UL, 0, 1));
|
|
}
|
|
|
|
#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
|
|
static inline pte_t huge_ptep_clear_flush(struct vm_area_struct *vma,
|
|
unsigned long addr, pte_t *ptep)
|
|
{
|
|
pte_t pte;
|
|
unsigned long sz = huge_page_size(hstate_vma(vma));
|
|
|
|
pte = huge_ptep_get_and_clear(vma->vm_mm, addr, ptep, sz);
|
|
flush_hugetlb_page(vma, addr);
|
|
return pte;
|
|
}
|
|
|
|
#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
|
|
int huge_ptep_set_access_flags(struct vm_area_struct *vma,
|
|
unsigned long addr, pte_t *ptep,
|
|
pte_t pte, int dirty);
|
|
|
|
void gigantic_hugetlb_cma_reserve(void) __init;
|
|
#include <asm-generic/hugetlb.h>
|
|
|
|
#else /* ! CONFIG_HUGETLB_PAGE */
|
|
static inline void flush_hugetlb_page(struct vm_area_struct *vma,
|
|
unsigned long vmaddr)
|
|
{
|
|
}
|
|
|
|
static inline void __init gigantic_hugetlb_cma_reserve(void)
|
|
{
|
|
}
|
|
|
|
static inline void __init hugetlbpage_init_defaultsize(void)
|
|
{
|
|
}
|
|
#endif /* CONFIG_HUGETLB_PAGE */
|
|
|
|
#endif /* _ASM_POWERPC_HUGETLB_H */
|