* [PATCH] mm/hugetlb: Add mmap() encodings for 32MB and 512MB page sizes
@ 2018-09-24 14:06 Anshuman Khandual
2018-09-24 16:48 ` Mike Kravetz
2018-09-25 2:08 ` [PATCH V2] " Anshuman Khandual
0 siblings, 2 replies; 5+ messages in thread
From: Anshuman Khandual @ 2018-09-24 14:06 UTC (permalink / raw)
To: linux-kernel, linux-mm
Cc: mike.kravetz, mhocko, punit.agrawal, will.deacon, akpm
ARM64 architecture also supports 32MB and 512MB HugeTLB page sizes.
This just adds mmap() system call argument encoding for them.
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
include/uapi/asm-generic/hugetlb_encode.h | 2 ++
include/uapi/linux/mman.h | 2 ++
2 files changed, 4 insertions(+)
diff --git a/include/uapi/asm-generic/hugetlb_encode.h b/include/uapi/asm-generic/hugetlb_encode.h
index e4732d3..b0f8e87 100644
--- 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/mman.h b/include/uapi/linux/mman.h
index bfd5938..d0f515d 100644
--- 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
--
2.7.4
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH] mm/hugetlb: Add mmap() encodings for 32MB and 512MB page sizes
2018-09-24 14:06 [PATCH] mm/hugetlb: Add mmap() encodings for 32MB and 512MB page sizes Anshuman Khandual
@ 2018-09-24 16:48 ` Mike Kravetz
2018-09-25 2:08 ` [PATCH V2] " Anshuman Khandual
1 sibling, 0 replies; 5+ messages in thread
From: Mike Kravetz @ 2018-09-24 16:48 UTC (permalink / raw)
To: Anshuman Khandual, linux-kernel, linux-mm
Cc: mhocko, punit.agrawal, will.deacon, akpm
On 9/24/18 7:06 AM, Anshuman Khandual wrote:
> ARM64 architecture also supports 32MB and 512MB HugeTLB page sizes.
> This just adds mmap() system call argument encoding for them.
>
> Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
> ---
> include/uapi/asm-generic/hugetlb_encode.h | 2 ++
> include/uapi/linux/mman.h | 2 ++
> 2 files changed, 4 insertions(+)
Thanks Anshuman,
However, I think we should also add similar definitions in:
uapi/linux/memfd.h
uapi/linux/shm.h
--
Mike Kravetz
^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH V2] mm/hugetlb: Add mmap() encodings for 32MB and 512MB page sizes
2018-09-24 14:06 [PATCH] mm/hugetlb: Add mmap() encodings for 32MB and 512MB page sizes Anshuman Khandual
2018-09-24 16:48 ` Mike Kravetz
@ 2018-09-25 2:08 ` Anshuman Khandual
2018-09-25 10:02 ` Punit Agrawal
2018-09-25 16:39 ` Mike Kravetz
1 sibling, 2 replies; 5+ messages in thread
From: Anshuman Khandual @ 2018-09-25 2:08 UTC (permalink / raw)
To: linux-kernel, linux-mm
Cc: mike.kravetz, mhocko, punit.agrawal, will.deacon, akpm
ARM64 architecture also supports 32MB and 512MB HugeTLB page sizes.
This just adds mmap() system call argument encoding for them.
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
Changes in V2:
- Updated SHM and MFD definitions per Mike
include/uapi/asm-generic/hugetlb_encode.h | 2 ++
include/uapi/linux/memfd.h | 2 ++
include/uapi/linux/mman.h | 2 ++
include/uapi/linux/shm.h | 2 ++
4 files changed, 8 insertions(+)
diff --git a/include/uapi/asm-generic/hugetlb_encode.h b/include/uapi/asm-generic/hugetlb_encode.h
index e4732d3..b0f8e87 100644
--- 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
index 015a4c0..7a8a267 100644
--- 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
index bfd5938..d0f515d 100644
--- 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
index dde1344..6507ad0 100644
--- 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
--
2.7.4
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH V2] mm/hugetlb: Add mmap() encodings for 32MB and 512MB page sizes
2018-09-25 2:08 ` [PATCH V2] " Anshuman Khandual
@ 2018-09-25 10:02 ` Punit Agrawal
2018-09-25 16:39 ` Mike Kravetz
1 sibling, 0 replies; 5+ messages in thread
From: Punit Agrawal @ 2018-09-25 10:02 UTC (permalink / raw)
To: Anshuman Khandual
Cc: linux-kernel, linux-mm, mike.kravetz, mhocko, will.deacon, akpm
Anshuman Khandual <anshuman.khandual@arm.com> writes:
> ARM64 architecture also supports 32MB and 512MB HugeTLB page sizes.
> This just adds mmap() system call argument encoding for them.
>
> Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Thanks for adding the encodings.
Acked-by: Punit Agrawal <punit.agrawal@arm.com>
> ---
>
> Changes in V2:
> - Updated SHM and MFD definitions per Mike
>
> include/uapi/asm-generic/hugetlb_encode.h | 2 ++
> include/uapi/linux/memfd.h | 2 ++
> include/uapi/linux/mman.h | 2 ++
> include/uapi/linux/shm.h | 2 ++
> 4 files changed, 8 insertions(+)
>
> diff --git a/include/uapi/asm-generic/hugetlb_encode.h b/include/uapi/asm-generic/hugetlb_encode.h
> index e4732d3..b0f8e87 100644
> --- 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
> index 015a4c0..7a8a267 100644
> --- 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
> index bfd5938..d0f515d 100644
> --- 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
> index dde1344..6507ad0 100644
> --- 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
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH V2] mm/hugetlb: Add mmap() encodings for 32MB and 512MB page sizes
2018-09-25 2:08 ` [PATCH V2] " Anshuman Khandual
2018-09-25 10:02 ` Punit Agrawal
@ 2018-09-25 16:39 ` Mike Kravetz
1 sibling, 0 replies; 5+ messages in thread
From: Mike Kravetz @ 2018-09-25 16:39 UTC (permalink / raw)
To: Anshuman Khandual, linux-kernel, linux-mm
Cc: mhocko, punit.agrawal, will.deacon, akpm
On 9/24/18 7:08 PM, Anshuman Khandual wrote:
> ARM64 architecture also supports 32MB and 512MB HugeTLB page sizes.
> This just adds mmap() system call argument encoding for them.
>
> Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
> ---
>
> Changes in V2:
> - Updated SHM and MFD definitions per Mike
Thanks Anshuman,
Acked-by: Mike Kravetz <mike.kravetz@oracle.com>
--
Mike Kravetz
>
> include/uapi/asm-generic/hugetlb_encode.h | 2 ++
> include/uapi/linux/memfd.h | 2 ++
> include/uapi/linux/mman.h | 2 ++
> include/uapi/linux/shm.h | 2 ++
> 4 files changed, 8 insertions(+)
>
> diff --git a/include/uapi/asm-generic/hugetlb_encode.h b/include/uapi/asm-generic/hugetlb_encode.h
> index e4732d3..b0f8e87 100644
> --- 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
> index 015a4c0..7a8a267 100644
> --- 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
> index bfd5938..d0f515d 100644
> --- 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
> index dde1344..6507ad0 100644
> --- 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
>
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2018-09-25 16:39 UTC | newest]
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2018-09-24 14:06 [PATCH] mm/hugetlb: Add mmap() encodings for 32MB and 512MB page sizes Anshuman Khandual
2018-09-24 16:48 ` Mike Kravetz
2018-09-25 2:08 ` [PATCH V2] " Anshuman Khandual
2018-09-25 10:02 ` Punit Agrawal
2018-09-25 16:39 ` Mike Kravetz
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