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| author | Wilco Dijkstra <wdijkstr@arm.com> | 2020-10-14 13:56:21 +0100 |
|---|---|---|
| committer | Wilco Dijkstra <wdijkstr@arm.com> | 2020-10-14 14:29:07 +0100 |
| commit | 81c5484d93a7768a8acc4cfdc228d925d60cd906 (patch) | |
| tree | 680aec425e8ba4227c39d3ed39862dd4cefcbb14 | |
| parent | 0f8f0ed25c196cfb93edf461aefdad15314ae05c (diff) | |
| download | glibc-81c5484d93a7768a8acc4cfdc228d925d60cd906.tar.gz glibc-81c5484d93a7768a8acc4cfdc228d925d60cd906.tar.xz glibc-81c5484d93a7768a8acc4cfdc228d925d60cd906.zip | |
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 <adhemerval.zanella@linaro.org> (cherry picked from commit e11ed9d2b4558eeacff81557dc9557001af42a6b)
| -rw-r--r-- | sysdeps/aarch64/multiarch/memcpy.c | 3 | ||||
| -rw-r--r-- | sysdeps/aarch64/multiarch/memmove.c | 3 | ||||
| -rw-r--r-- | 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) |