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![Ingo Molnar](/assets/img/avatar_default.png)
Half of the declarations have an 'extern', half of them not, use 'extern' consistently. This makes grepping for APIs easier, such as: dagon:~/tip> git grep -E '\<memtype_.*\(' arch/x86/ | grep extern arch/x86/include/asm/memtype.h:extern int memtype_reserve(u64 start, u64 end, arch/x86/include/asm/memtype.h:extern int memtype_free(u64 start, u64 end); arch/x86/include/asm/memtype.h:extern int memtype_kernel_map_sync(u64 base, unsigned long size, arch/x86/include/asm/memtype.h:extern int memtype_reserve_io(resource_size_t start, resource_size_t end, arch/x86/include/asm/memtype.h:extern void memtype_free_io(resource_size_t start, resource_size_t end); arch/x86/mm/pat/memtype.h:extern int memtype_check_insert(struct memtype *entry_new, arch/x86/mm/pat/memtype.h:extern struct memtype *memtype_erase(u64 start, u64 end); arch/x86/mm/pat/memtype.h:extern struct memtype *memtype_lookup(u64 addr); arch/x86/mm/pat/memtype.h:extern int memtype_copy_nth_element(struct memtype *entry_out, loff_t pos); Signed-off-by: Ingo Molnar <mingo@kernel.org>
27 lines
815 B
C
27 lines
815 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_X86_MEMTYPE_H
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#define _ASM_X86_MEMTYPE_H
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#include <linux/types.h>
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#include <asm/pgtable_types.h>
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extern bool pat_enabled(void);
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extern void pat_disable(const char *reason);
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extern void pat_init(void);
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extern void init_cache_modes(void);
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extern int memtype_reserve(u64 start, u64 end,
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enum page_cache_mode req_pcm, enum page_cache_mode *ret_pcm);
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extern int memtype_free(u64 start, u64 end);
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extern int memtype_kernel_map_sync(u64 base, unsigned long size,
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enum page_cache_mode pcm);
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extern int memtype_reserve_io(resource_size_t start, resource_size_t end,
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enum page_cache_mode *pcm);
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extern void memtype_free_io(resource_size_t start, resource_size_t end);
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extern bool pat_pfn_immune_to_uc_mtrr(unsigned long pfn);
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#endif /* _ASM_X86_MEMTYPE_H */
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