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Merge tag 'perf-urgent-for-mingo-4.14-20170928' of git://git.kernel.o…
…rg/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/urgent fixes from Arnaldo Carvalho de Melo: - Fix syscalltbl build failure (Akemi Yagi) - Fix attr.exclude_kernel setting for default cycles:p, this time for !root with kernel.perf_event_paranoid = -1 (Arnaldo Carvalho de Melo) - Sync kernel ABI headers with tooling headers (Ingo Molnar) - Remove misleading debug messages with --call-graph option (Mengting Zhang) - Revert vmlinux symbol resolution patches for s390x (Thomas Richter) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
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#ifndef _ASM_GENERIC_HUGETLB_ENCODE_H_ | ||
#define _ASM_GENERIC_HUGETLB_ENCODE_H_ | ||
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/* | ||
* Several system calls take a flag to request "hugetlb" huge pages. | ||
* Without further specification, these system calls will use the | ||
* system's default huge page size. If a system supports multiple | ||
* huge page sizes, the desired huge page size can be specified in | ||
* bits [26:31] of the flag arguments. The value in these 6 bits | ||
* will encode the log2 of the huge page size. | ||
* | ||
* The following definitions are associated with this huge page size | ||
* encoding in flag arguments. System call specific header files | ||
* that use this encoding should include this file. They can then | ||
* provide definitions based on these with their own specific prefix. | ||
* for example: | ||
* #define MAP_HUGE_SHIFT HUGETLB_FLAG_ENCODE_SHIFT | ||
*/ | ||
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#define HUGETLB_FLAG_ENCODE_SHIFT 26 | ||
#define HUGETLB_FLAG_ENCODE_MASK 0x3f | ||
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#define HUGETLB_FLAG_ENCODE_64KB (16 << HUGETLB_FLAG_ENCODE_SHIFT) | ||
#define HUGETLB_FLAG_ENCODE_512KB (19 << HUGETLB_FLAG_ENCODE_SHIFT) | ||
#define HUGETLB_FLAG_ENCODE_1MB (20 << HUGETLB_FLAG_ENCODE_SHIFT) | ||
#define HUGETLB_FLAG_ENCODE_2MB (21 << HUGETLB_FLAG_ENCODE_SHIFT) | ||
#define HUGETLB_FLAG_ENCODE_8MB (23 << HUGETLB_FLAG_ENCODE_SHIFT) | ||
#define HUGETLB_FLAG_ENCODE_16MB (24 << HUGETLB_FLAG_ENCODE_SHIFT) | ||
#define HUGETLB_FLAG_ENCODE_256MB (28 << HUGETLB_FLAG_ENCODE_SHIFT) | ||
#define HUGETLB_FLAG_ENCODE_1GB (30 << HUGETLB_FLAG_ENCODE_SHIFT) | ||
#define HUGETLB_FLAG_ENCODE_2GB (31 << HUGETLB_FLAG_ENCODE_SHIFT) | ||
#define HUGETLB_FLAG_ENCODE_16GB (34 << HUGETLB_FLAG_ENCODE_SHIFT) | ||
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#endif /* _ASM_GENERIC_HUGETLB_ENCODE_H_ */ |
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