From e11ed9d2b4558eeacff81557dc9557001af42a6b Mon Sep 17 00:00:00 2001 From: Wilco Dijkstra Date: Wed, 14 Oct 2020 13:56:21 +0100 Subject: [PATCH] AArch64: Use __memcpy_simd on Neoverse N2/V1 Add CPU detection of Neoverse N2 and Neoverse V1, and select __memcpy_simd as the memcpy/memmove ifunc. Reviewed-by: Adhemerval Zanella --- sysdeps/aarch64/multiarch/memcpy.c | 3 ++- sysdeps/aarch64/multiarch/memmove.c | 3 ++- sysdeps/unix/sysv/linux/aarch64/cpu-features.h | 4 ++++ 3 files changed, 8 insertions(+), 2 deletions(-) diff --git a/sysdeps/aarch64/multiarch/memcpy.c b/sysdeps/aarch64/multiarch/memcpy.c index 7cf5f033e8..799d60c98c 100644 --- a/sysdeps/aarch64/multiarch/memcpy.c +++ b/sysdeps/aarch64/multiarch/memcpy.c @@ -41,7 +41,8 @@ libc_ifunc (__libc_memcpy, ? __memcpy_falkor : (IS_THUNDERX2 (midr) || IS_THUNDERX2PA (midr) ? __memcpy_thunderx2 - : (IS_NEOVERSE_N1 (midr) + : (IS_NEOVERSE_N1 (midr) || IS_NEOVERSE_N2 (midr) + || IS_NEOVERSE_V1 (midr) ? __memcpy_simd : __memcpy_generic))))); diff --git a/sysdeps/aarch64/multiarch/memmove.c b/sysdeps/aarch64/multiarch/memmove.c index ad10aa8ac6..46a4cb3a54 100644 --- a/sysdeps/aarch64/multiarch/memmove.c +++ b/sysdeps/aarch64/multiarch/memmove.c @@ -41,7 +41,8 @@ libc_ifunc (__libc_memmove, ? __memmove_falkor : (IS_THUNDERX2 (midr) || IS_THUNDERX2PA (midr) ? __memmove_thunderx2 - : (IS_NEOVERSE_N1 (midr) + : (IS_NEOVERSE_N1 (midr) || IS_NEOVERSE_N2 (midr) + || IS_NEOVERSE_V1 (midr) ? __memmove_simd : __memmove_generic))))); diff --git a/sysdeps/unix/sysv/linux/aarch64/cpu-features.h b/sysdeps/unix/sysv/linux/aarch64/cpu-features.h index fc688450ee..00a4d0c8e7 100644 --- a/sysdeps/unix/sysv/linux/aarch64/cpu-features.h +++ b/sysdeps/unix/sysv/linux/aarch64/cpu-features.h @@ -54,6 +54,10 @@ && MIDR_PARTNUM(midr) == 0x000) #define IS_NEOVERSE_N1(midr) (MIDR_IMPLEMENTOR(midr) == 'A' \ && MIDR_PARTNUM(midr) == 0xd0c) +#define IS_NEOVERSE_N2(midr) (MIDR_IMPLEMENTOR(midr) == 'A' \ + && MIDR_PARTNUM(midr) == 0xd49) +#define IS_NEOVERSE_V1(midr) (MIDR_IMPLEMENTOR(midr) == 'A' \ + && MIDR_PARTNUM(midr) == 0xd40) #define IS_EMAG(midr) (MIDR_IMPLEMENTOR(midr) == 'P' \ && MIDR_PARTNUM(midr) == 0x000) -- 2.11.4.GIT