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| author |   Wilco Dijkstra <Wilco.Dijkstra@arm.com> | 2018-12-19 18:28:24 +0000 |
|---|---|---|
| committer |   Szabolcs Nagy <szabolcs.nagy@arm.com> | 2019-01-09 10:35:34 +0000 |
| commit | 02f440c1ef5d5d79552a524065aa3e2fabe469b9 (patch) | |
| tree | edffea1dbdd7ecb69885170e9b06fda564ebe7f7 /sysdeps/unix | |
| parent | soft-fp: Properly check _FP_W_TYPE_SIZE [BZ #24066] (diff) | |
| download | glibc-02f440c1ef5d5d79552a524065aa3e2fabe469b9.tar.gz glibc-02f440c1ef5d5d79552a524065aa3e2fabe469b9.tar.bz2 glibc-02f440c1ef5d5d79552a524065aa3e2fabe469b9.zip | |
[AArch64] Add ifunc support for Ares
Add Ares to the midr_el0 list and support ifunc dispatch. Since Ares
supports 2 128-bit loads/stores, use Neon registers for memcpy by
selecting __memcpy_falkor by default (we should rename this to
__memcpy_simd or similar).
* manual/tunables.texi (glibc.cpu.name): Add ares tunable.
* sysdeps/aarch64/multiarch/memcpy.c (__libc_memcpy): Use
__memcpy_falkor for ares.
* sysdeps/unix/sysv/linux/aarch64/cpu-features.h (IS_ARES):
Add new define.
* sysdeps/unix/sysv/linux/aarch64/cpu-features.c (cpu_list):
Add ares cpu.
Diffstat (limited to 'sysdeps/unix')
| -rw-r--r-- | sysdeps/unix/sysv/linux/aarch64/cpu-features.c | 1 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/aarch64/cpu-features.h | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/aarch64/cpu-features.c b/sysdeps/unix/sysv/linux/aarch64/cpu-features.c index ce5998ae73..4243ceda07 100644 --- a/sysdeps/unix/sysv/linux/aarch64/cpu-features.c +++ b/sysdeps/unix/sysv/linux/aarch64/cpu-features.c @@ -36,6 +36,7 @@ static struct cpu_list cpu_list[] = { {"thunderx2t99", 0x431F0AF0}, {"thunderx2t99p1", 0x420F5160}, {"phecda", 0x680F0000}, + {"ares", 0x411FD0C0}, {"generic", 0x0} }; diff --git a/sysdeps/unix/sysv/linux/aarch64/cpu-features.h b/sysdeps/unix/sysv/linux/aarch64/cpu-features.h index fa6d8dbd95..6f8b35ff09 100644 --- a/sysdeps/unix/sysv/linux/aarch64/cpu-features.h +++ b/sysdeps/unix/sysv/linux/aarch64/cpu-features.h @@ -51,6 +51,8 @@ #define IS_PHECDA(midr) (MIDR_IMPLEMENTOR(midr) == 'h' \ && MIDR_PARTNUM(midr) == 0x000) +#define IS_ARES(midr) (MIDR_IMPLEMENTOR(midr) == 'A' \ + && MIDR_PARTNUM(midr) == 0xd0c) struct cpu_features { |