mm/hugetlb: add mmap() encodings for 32MB and 512MB page sizes

ARM64 architecture also supports 32MB and 512MB HugeTLB page sizes. This just adds mmap() system call argument encoding for them. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Anshuman Khandual <[email protected]> Acked-by: Punit Agrawal <[email protected]> Acked-by: Mike Kravetz <[email protected]> Cc: Michal Hocko <[email protected]> Cc: Will Deacon <[email protected]> Cc: Catalin Marinas <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
zarubaf · Oct 5, 2018 · 20916d4 · 20916d4
1 parent e6112fc
commit 20916d4
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diff --git a/include/uapi/asm-generic/hugetlb_encode.h b/include/uapi/asm-generic/hugetlb_encode.h
@@ -26,7 +26,9 @@
 #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_32MB	(25 << HUGETLB_FLAG_ENCODE_SHIFT)
 #define HUGETLB_FLAG_ENCODE_256MB	(28 << HUGETLB_FLAG_ENCODE_SHIFT)
+#define HUGETLB_FLAG_ENCODE_512MB	(29 << 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)

diff --git a/include/uapi/linux/memfd.h b/include/uapi/linux/memfd.h
@@ -25,7 +25,9 @@
 #define MFD_HUGE_2MB	HUGETLB_FLAG_ENCODE_2MB
 #define MFD_HUGE_8MB	HUGETLB_FLAG_ENCODE_8MB
 #define MFD_HUGE_16MB	HUGETLB_FLAG_ENCODE_16MB
+#define MFD_HUGE_32MB	HUGETLB_FLAG_ENCODE_32MB
 #define MFD_HUGE_256MB	HUGETLB_FLAG_ENCODE_256MB
+#define MFD_HUGE_512MB	HUGETLB_FLAG_ENCODE_512MB
 #define MFD_HUGE_1GB	HUGETLB_FLAG_ENCODE_1GB
 #define MFD_HUGE_2GB	HUGETLB_FLAG_ENCODE_2GB
 #define MFD_HUGE_16GB	HUGETLB_FLAG_ENCODE_16GB

diff --git a/include/uapi/linux/mman.h b/include/uapi/linux/mman.h
@@ -28,7 +28,9 @@
 #define MAP_HUGE_2MB	HUGETLB_FLAG_ENCODE_2MB
 #define MAP_HUGE_8MB	HUGETLB_FLAG_ENCODE_8MB
 #define MAP_HUGE_16MB	HUGETLB_FLAG_ENCODE_16MB
+#define MAP_HUGE_32MB	HUGETLB_FLAG_ENCODE_32MB
 #define MAP_HUGE_256MB	HUGETLB_FLAG_ENCODE_256MB
+#define MAP_HUGE_512MB	HUGETLB_FLAG_ENCODE_512MB
 #define MAP_HUGE_1GB	HUGETLB_FLAG_ENCODE_1GB
 #define MAP_HUGE_2GB	HUGETLB_FLAG_ENCODE_2GB
 #define MAP_HUGE_16GB	HUGETLB_FLAG_ENCODE_16GB

diff --git a/include/uapi/linux/shm.h b/include/uapi/linux/shm.h
@@ -65,7 +65,9 @@ struct shmid_ds {
 #define SHM_HUGE_2MB	HUGETLB_FLAG_ENCODE_2MB
 #define SHM_HUGE_8MB	HUGETLB_FLAG_ENCODE_8MB
 #define SHM_HUGE_16MB	HUGETLB_FLAG_ENCODE_16MB
+#define SHM_HUGE_32MB	HUGETLB_FLAG_ENCODE_32MB
 #define SHM_HUGE_256MB	HUGETLB_FLAG_ENCODE_256MB
+#define SHM_HUGE_512MB	HUGETLB_FLAG_ENCODE_512MB
 #define SHM_HUGE_1GB	HUGETLB_FLAG_ENCODE_1GB
 #define SHM_HUGE_2GB	HUGETLB_FLAG_ENCODE_2GB
 #define SHM_HUGE_16GB	HUGETLB_FLAG_ENCODE_16GB