mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
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Nicholas Piggin
6f680e70b6
If an architecture doesn't support a particular page table level as a huge vmap page size then allow it to skip defining the support query function. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Nicholas Piggin <[email protected]> Suggested-by: Christoph Hellwig <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Catalin Marinas <[email protected]> Cc: Ding Tianhong <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Miaohe Lin <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Russell King <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Uladzislau Rezki (Sony) <[email protected]> Cc: Will Deacon <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
27 lines
560 B
C
27 lines
560 B
C
#ifndef _ASM_X86_VMALLOC_H
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#define _ASM_X86_VMALLOC_H
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#include <asm/cpufeature.h>
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#include <asm/page.h>
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#include <asm/pgtable_areas.h>
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#ifdef CONFIG_HAVE_ARCH_HUGE_VMAP
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#ifdef CONFIG_X86_64
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#define arch_vmap_pud_supported arch_vmap_pud_supported
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static inline bool arch_vmap_pud_supported(pgprot_t prot)
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{
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return boot_cpu_has(X86_FEATURE_GBPAGES);
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}
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#endif
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#define arch_vmap_pmd_supported arch_vmap_pmd_supported
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static inline bool arch_vmap_pmd_supported(pgprot_t prot)
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{
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return boot_cpu_has(X86_FEATURE_PSE);
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}
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#endif
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#endif /* _ASM_X86_VMALLOC_H */
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