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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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a3286f05bc
In preparation for the following patch which will enhance 'slices' for supporting PPC32 in order to fix an issue on hugepages on 8xx, this patch takes out of page*.h all bits related to 'slices' and put them into newly created slice.h header files. While common parts go into asm/slice.h, subarch specific parts go into respective books3s/64/slice.c and nohash/64/slice.c 'slices' Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Reviewed-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
41 lines
1.0 KiB
C
41 lines
1.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_POWERPC_SLICE_H
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#define _ASM_POWERPC_SLICE_H
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#ifdef CONFIG_PPC_BOOK3S_64
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#include <asm/book3s/64/slice.h>
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#else
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#include <asm/nohash/64/slice.h>
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#endif
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#ifdef CONFIG_PPC_MM_SLICES
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#ifdef CONFIG_HUGETLB_PAGE
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#define HAVE_ARCH_HUGETLB_UNMAPPED_AREA
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#endif
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#define HAVE_ARCH_UNMAPPED_AREA
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#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
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#ifndef __ASSEMBLY__
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struct mm_struct;
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unsigned long slice_get_unmapped_area(unsigned long addr, unsigned long len,
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unsigned long flags, unsigned int psize,
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int topdown);
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unsigned int get_slice_psize(struct mm_struct *mm, unsigned long addr);
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void slice_set_user_psize(struct mm_struct *mm, unsigned int psize);
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void slice_set_range_psize(struct mm_struct *mm, unsigned long start,
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unsigned long len, unsigned int psize);
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#endif /* __ASSEMBLY__ */
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#else /* CONFIG_PPC_MM_SLICES */
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#define slice_set_range_psize(mm, start, len, psize) \
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slice_set_user_psize((mm), (psize))
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#endif /* CONFIG_PPC_MM_SLICES */
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#endif /* _ASM_POWERPC_SLICE_H */
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