From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1895) id 418D2386F47C; Wed, 14 Oct 2020 16:26:50 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 418D2386F47C Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: Wilco Dijkstra To: glibc-cvs@sourceware.org Subject: [glibc/release/2.29/master] AArch64: Use __memcpy_simd on Neoverse N2/V1 X-Act-Checkin: glibc X-Git-Author: Wilco Dijkstra X-Git-Refname: refs/heads/release/2.29/master X-Git-Oldrev: be3eaffd5a6036179f6bbecf5175cb1b604e213d X-Git-Newrev: 28ff0f650c36a2871eb968751be77fd38673c1c6 Message-Id: <20201014162650.418D2386F47C@sourceware.org> Date: Wed, 14 Oct 2020 16:26:50 +0000 (GMT) X-BeenThere: glibc-cvs@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Glibc-cvs mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 14 Oct 2020 16:26:50 -0000 https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=28ff0f650c36a2871eb968751be77fd38673c1c6 commit 28ff0f650c36a2871eb968751be77fd38673c1c6 Author: Wilco Dijkstra Date: Wed Oct 14 13:56:21 2020 +0100 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 (cherry picked from commit e11ed9d2b4558eeacff81557dc9557001af42a6b) Diff: --- 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 be23c1ef02..1528d89e54 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 e1194c1618..621af2b296 100644 --- a/sysdeps/aarch64/multiarch/memmove.c +++ b/sysdeps/aarch64/multiarch/memmove.c @@ -38,7 +38,8 @@ libc_ifunc (__libc_memmove, ? __memmove_thunderx : (IS_FALKOR (midr) || IS_PHECDA (midr) ? __memmove_falkor - : (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 342e06eaf4..35c7072395 100644 --- a/sysdeps/unix/sysv/linux/aarch64/cpu-features.h +++ b/sysdeps/unix/sysv/linux/aarch64/cpu-features.h @@ -53,6 +53,10 @@ && 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) struct cpu_features {