069239169a
pgd_alloc() and pgd_free() are identical on nohash 32 and 64. Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
35 lines
1,015 B
C
35 lines
1,015 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_POWERPC_PGALLOC_32_H
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#define _ASM_POWERPC_PGALLOC_32_H
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#include <linux/threads.h>
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#include <linux/slab.h>
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/*
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* We don't have any real pmd's, and this code never triggers because
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* the pgd will always be present..
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*/
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/* #define pmd_alloc_one(mm,address) ({ BUG(); ((pmd_t *)2); }) */
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#define pmd_free(mm, x) do { } while (0)
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#define __pmd_free_tlb(tlb,x,a) do { } while (0)
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/* #define pgd_populate(mm, pmd, pte) BUG() */
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static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmdp,
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pte_t *pte)
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{
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if (IS_ENABLED(CONFIG_BOOKE))
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*pmdp = __pmd((unsigned long)pte | _PMD_PRESENT);
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else
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*pmdp = __pmd(__pa(pte) | _PMD_PRESENT);
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}
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static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmdp,
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pgtable_t pte_page)
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{
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if (IS_ENABLED(CONFIG_BOOKE))
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*pmdp = __pmd((unsigned long)pte_page | _PMD_PRESENT);
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else
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*pmdp = __pmd(__pa(pte_page) | _PMD_USER | _PMD_PRESENT);
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}
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#endif /* _ASM_POWERPC_PGALLOC_32_H */
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