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45 lines
1.2 KiB
45 lines
1.2 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _ASM_POWERPC_NOHASH_HUGETLB_BOOK3E_H |
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#define _ASM_POWERPC_NOHASH_HUGETLB_BOOK3E_H |
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static inline pte_t *hugepd_page(hugepd_t hpd) |
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{ |
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if (WARN_ON(!hugepd_ok(hpd))) |
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return NULL; |
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return (pte_t *)((hpd_val(hpd) & ~HUGEPD_SHIFT_MASK) | PD_HUGE); |
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} |
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static inline unsigned int hugepd_shift(hugepd_t hpd) |
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{ |
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return hpd_val(hpd) & HUGEPD_SHIFT_MASK; |
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} |
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static inline pte_t *hugepte_offset(hugepd_t hpd, unsigned long addr, |
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unsigned int pdshift) |
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{ |
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/* |
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* On FSL BookE, we have multiple higher-level table entries that |
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* point to the same hugepte. Just use the first one since they're all |
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* identical. So for that case, idx=0. |
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*/ |
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return hugepd_page(hpd); |
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} |
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void flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr); |
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static inline void hugepd_populate(hugepd_t *hpdp, pte_t *new, unsigned int pshift) |
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{ |
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/* We use the old format for PPC_FSL_BOOK3E */ |
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*hpdp = __hugepd(((unsigned long)new & ~PD_HUGE) | pshift); |
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} |
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static inline int check_and_get_huge_psize(int shift) |
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{ |
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if (shift & 1) /* Not a power of 4 */ |
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return -EINVAL; |
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return shift_to_mmu_psize(shift); |
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} |
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#endif /* _ASM_POWERPC_NOHASH_HUGETLB_BOOK3E_H */
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