From: Anshuman Khandual <khandual@linux.vnet.ibm.com>
To: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org
Cc: hughd@google.com, kirill@shutemov.name,
n-horiguchi@ah.jp.nec.com, akpm@linux-foundation.org,
mgorman@techsingularity.net, dave.hansen@intel.com,
aneesh.kumar@linux.vnet.ibm.com, mpe@ellerman.id.au
Subject: [PATCH 04/10] powerpc/hugetlb: Add ABI defines for MAP_HUGE_16MB and MAP_HUGE_16GB
Date: Thu, 7 Apr 2016 11:07:38 +0530 [thread overview]
Message-ID: <1460007464-26726-5-git-send-email-khandual@linux.vnet.ibm.com> (raw)
In-Reply-To: <1460007464-26726-1-git-send-email-khandual@linux.vnet.ibm.com>
This just adds user space exported ABI definitions for both 16MB and
16GB non default huge page sizes to be used with mmap() system call.
Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
---
arch/powerpc/include/uapi/asm/mman.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index 03c06ba..e78980b 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -29,4 +29,7 @@
#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */
#define MAP_HUGETLB 0x40000 /* create a huge page mapping */
+#define MAP_HUGE_16MB (24 << MAP_HUGE_SHIFT) /* 16MB HugeTLB Page */
+#define MAP_HUGE_16GB (34 << MAP_HUGE_SHIFT) /* 16GB HugeTLB Page */
+
#endif /* _UAPI_ASM_POWERPC_MMAN_H */
--
2.1.0
--
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next prev parent reply other threads:[~2016-04-07 5:38 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-07 5:37 [PATCH 00/10] Enable HugeTLB page migration on POWER Anshuman Khandual
2016-04-07 5:37 ` [PATCH 01/10] mm/mmap: Replace SHM_HUGE_MASK with MAP_HUGE_MASK inside mmap_pgoff Anshuman Khandual
2016-04-07 8:28 ` Balbir Singh
2016-04-13 7:54 ` Michal Hocko
2016-04-07 5:37 ` [PATCH 02/10] mm/hugetlb: Add PGD based implementation awareness Anshuman Khandual
2016-04-07 9:04 ` Balbir Singh
2016-04-11 5:25 ` Anshuman Khandual
2016-04-11 6:10 ` Anshuman Khandual
2016-04-07 5:37 ` [PATCH 03/10] mm/hugetlb: Protect follow_huge_(pud|pgd) functions from race Anshuman Khandual
2016-04-07 9:16 ` kbuild test robot
2016-04-18 8:44 ` Anshuman Khandual
2016-04-07 9:26 ` Balbir Singh
2016-04-11 5:39 ` Anshuman Khandual
2016-04-11 12:46 ` Balbir Singh
2016-04-07 9:34 ` kbuild test robot
2016-04-11 6:04 ` Anshuman Khandual
2016-04-18 8:42 ` Anshuman Khandual
2016-04-07 5:37 ` Anshuman Khandual [this message]
2016-04-07 5:37 ` [PATCH 05/10] powerpc/hugetlb: Split the function 'huge_pte_alloc' Anshuman Khandual
2016-04-11 13:51 ` Balbir Singh
2016-04-13 11:08 ` Anshuman Khandual
2016-04-07 5:37 ` [PATCH 06/10] powerpc/hugetlb: Split the function 'huge_pte_offset' Anshuman Khandual
2016-04-07 5:37 ` [PATCH 07/10] powerpc/hugetlb: Prepare arch functions for ARCH_WANT_GENERAL_HUGETLB Anshuman Khandual
2016-04-07 5:37 ` [PATCH 08/10] powerpc/hugetlb: Selectively enable ARCH_WANT_GENERAL_HUGETLB Anshuman Khandual
2016-04-07 5:37 ` [PATCH 09/10] powerpc/hugetlb: Selectively enable ARCH_ENABLE_HUGEPAGE_MIGRATION Anshuman Khandual
2016-04-07 5:37 ` [PATCH 10/10] selfttest/powerpc: Add memory page migration tests Anshuman Khandual
2016-04-18 8:52 ` [PATCH 00/10] Enable HugeTLB page migration on POWER Anshuman Khandual
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