[mirror_ubuntu-focal-kernel.git] / arch / powerpc / include / asm / book3s / 64 / pgtable-4k.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_POWERPC_BOOK3S_64_PGTABLE_4K_H
#define _ASM_POWERPC_BOOK3S_64_PGTABLE_4K_H
/*
 * hash 4k can't share hugetlb and also doesn't support THP
 */
#ifndef __ASSEMBLY__
#ifdef CONFIG_HUGETLB_PAGE
static inline int pmd_huge(pmd_t pmd)
{
	/*
	 * leaf pte for huge page
	 */
	if (radix_enabled())
		return !!(pmd_raw(pmd) & cpu_to_be64(_PAGE_PTE));
	return 0;
}

static inline int pud_huge(pud_t pud)
{
	/*
	 * leaf pte for huge page
	 */
	if (radix_enabled())
		return !!(pud_raw(pud) & cpu_to_be64(_PAGE_PTE));
	return 0;
}

static inline int pgd_huge(pgd_t pgd)
{
	/*
	 * leaf pte for huge page
	 */
	if (radix_enabled())
		return !!(pgd_raw(pgd) & cpu_to_be64(_PAGE_PTE));
	return 0;
}
#define pgd_huge pgd_huge
/*
 * With radix , we have hugepage ptes in the pud and pmd entries. We don't
 * need to setup hugepage directory for them. Our pte and page directory format
 * enable us to have this enabled.
 */
static inline int hugepd_ok(hugepd_t hpd)
{
	if (radix_enabled())
		return 0;
	return hash__hugepd_ok(hpd);
}
#define is_hugepd(hpd)		(hugepd_ok(hpd))

#else /* !CONFIG_HUGETLB_PAGE */
static inline int pmd_huge(pmd_t pmd) { return 0; }
static inline int pud_huge(pud_t pud) { return 0; }
#endif /* CONFIG_HUGETLB_PAGE */

#endif /* __ASSEMBLY__ */

#endif /*_ASM_POWERPC_BOOK3S_64_PGTABLE_4K_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
a9252aae AK	2	#ifndef _ASM_POWERPC_BOOK3S_64_PGTABLE_4K_H
	3	#define _ASM_POWERPC_BOOK3S_64_PGTABLE_4K_H
	4	/*
	5	* hash 4k can't share hugetlb and also doesn't support THP
	6	*/
c0a6c719 AK	7	#ifndef __ASSEMBLY__
	8	#ifdef CONFIG_HUGETLB_PAGE
	9	static inline int pmd_huge(pmd_t pmd)
	10	{
	11	/*
	12	* leaf pte for huge page
	13	*/
	14	if (radix_enabled())
66c570f5	15	return !!(pmd_raw(pmd) & cpu_to_be64(_PAGE_PTE));
c0a6c719 AK	16	return 0;
	17	}
	18
	19	static inline int pud_huge(pud_t pud)
	20	{
	21	/*
	22	* leaf pte for huge page
	23	*/
	24	if (radix_enabled())
66c570f5	25	return !!(pud_raw(pud) & cpu_to_be64(_PAGE_PTE));
c0a6c719 AK	26	return 0;
	27	}
	28
	29	static inline int pgd_huge(pgd_t pgd)
	30	{
	31	/*
	32	* leaf pte for huge page
	33	*/
	34	if (radix_enabled())
66c570f5	35	return !!(pgd_raw(pgd) & cpu_to_be64(_PAGE_PTE));
c0a6c719 AK	36	return 0;
	37	}
	38	#define pgd_huge pgd_huge
	39	/*
	40	* With radix , we have hugepage ptes in the pud and pmd entries. We don't
	41	* need to setup hugepage directory for them. Our pte and page directory format
	42	* enable us to have this enabled.
	43	*/
	44	static inline int hugepd_ok(hugepd_t hpd)
	45	{
	46	if (radix_enabled())
	47	return 0;
	48	return hash__hugepd_ok(hpd);
	49	}
	50	#define is_hugepd(hpd) (hugepd_ok(hpd))
aad71e39 ME	51
	52	#else /* !CONFIG_HUGETLB_PAGE */
	53	static inline int pmd_huge(pmd_t pmd) { return 0; }
	54	static inline int pud_huge(pud_t pud) { return 0; }
c0a6c719	55	#endif /* CONFIG_HUGETLB_PAGE */
aad71e39	56
c0a6c719	57	#endif /* __ASSEMBLY__ */
a9252aae AK	58
a9252aae AK	59	#endif /_ASM_POWERPC_BOOK3S_64_PGTABLE_4K_H /