diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2023-05-31 15:08:35 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2023-06-05 09:36:35 +0200 |
| commit | 224d80c584d3016cb8d83d1c33914fdd3508aa8c (patch) | |
| tree | 09619ad80961c82b1cd752e1c3e56a1c9ffca100 | |
| parent | f413e724818c6482146218b3bcaf3d75b1317fc4 (diff) | |
types: Introduce [us]128
Introduce [us]128 (when available). Unlike [us]64, ensure they are
always naturally aligned.
This also enables 128bit wide atomics (which require natural
alignment) such as cmpxchg128().
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20230531132323.385005581@infradead.org
| -rw-r--r-- | include/linux/types.h | 5 | ||||
| -rw-r--r-- | include/uapi/linux/types.h | 4 | ||||
| -rw-r--r-- | lib/crypto/curve25519-hacl64.c | 2 | ||||
| -rw-r--r-- | lib/crypto/poly1305-donna64.c | 2 |
4 files changed, 9 insertions, 4 deletions
diff --git a/include/linux/types.h b/include/linux/types.h index 688fb943556a..becb8cd5916f 100644 --- a/include/linux/types.h +++ b/include/linux/types.h @@ -10,6 +10,11 @@ #define DECLARE_BITMAP(name,bits) \ unsigned long name[BITS_TO_LONGS(bits)] +#ifdef __SIZEOF_INT128__ +typedef __s128 s128; +typedef __u128 u128; +#endif + typedef u32 __kernel_dev_t; typedef __kernel_fd_set fd_set; diff --git a/include/uapi/linux/types.h b/include/uapi/linux/types.h index 308433be33c2..6375a0684052 100644 --- a/include/uapi/linux/types.h +++ b/include/uapi/linux/types.h @@ -13,6 +13,10 @@ #include <linux/posix_types.h> +#ifdef __SIZEOF_INT128__ +typedef __signed__ __int128 __s128 __attribute__((aligned(16))); +typedef unsigned __int128 __u128 __attribute__((aligned(16))); +#endif /* * Below are truly Linux-specific types that should never collide with diff --git a/lib/crypto/curve25519-hacl64.c b/lib/crypto/curve25519-hacl64.c index 771d82dc5f14..c40e5d913234 100644 --- a/lib/crypto/curve25519-hacl64.c +++ b/lib/crypto/curve25519-hacl64.c @@ -14,8 +14,6 @@ #include <crypto/curve25519.h> #include <linux/string.h> -typedef __uint128_t u128; - static __always_inline u64 u64_eq_mask(u64 a, u64 b) { u64 x = a ^ b; diff --git a/lib/crypto/poly1305-donna64.c b/lib/crypto/poly1305-donna64.c index d34cf4053668..988702c9b3b2 100644 --- a/lib/crypto/poly1305-donna64.c +++ b/lib/crypto/poly1305-donna64.c @@ -10,8 +10,6 @@ #include <asm/unaligned.h> #include <crypto/internal/poly1305.h> -typedef __uint128_t u128; - void poly1305_core_setkey(struct poly1305_core_key *key, const u8 raw_key[POLY1305_BLOCK_SIZE]) { |