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authorWilco Dijkstra <wdijkstr@arm.com>2020-10-14 13:56:21 +0100
committerWilco Dijkstra <wdijkstr@arm.com>2020-10-14 14:27:50 +0100
commite11ed9d2b4558eeacff81557dc9557001af42a6b (patch)
treec7adb040894f0c0403170aecebcdfdceee4b20d9 /sysdeps
parentf1f00c072138af90ae6da180f260111f09afe7a3 (diff)
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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>
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/aarch64/multiarch/memcpy.c3
-rw-r--r--sysdeps/aarch64/multiarch/memmove.c3
-rw-r--r--sysdeps/unix/sysv/linux/aarch64/cpu-features.h4
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)