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authorFeng Xue <fxue@os.amperecomputing.com>2018-08-01 03:42:44 -0400
committerFeng Xue <fxue@os.amperecomputing.com>2019-02-01 07:59:18 -0500
commit07c3d1ec03ee3633918afb59213cd1bac2ab276e (patch)
tree8652dd6bb415be5a1b00e953b97613e37c86876c /sysdeps
parent114f792eaea2505cd8aee02d330aad37238da6a5 (diff)
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aarch64: Add AmpereComputing emag to tunable cpu list
Emag is a 64-bit CPU core released by AmpereComputing. Add its name to cpu list, and corresponding macro as utilities for later IFUNC dispatch. * manual/tunables.texi (Tunable glibc.cpu.name): Add emag. * sysdeps/unix/sysv/linux/aarch64/cpu-features.c (cpu_list): Add emag. * sysdeps/unix/sysv/linux/aarch64/cpu-features.h (IS_EMAG): New macro.
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/unix/sysv/linux/aarch64/cpu-features.c1
-rw-r--r--sysdeps/unix/sysv/linux/aarch64/cpu-features.h3
2 files changed, 4 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/aarch64/cpu-features.c b/sysdeps/unix/sysv/linux/aarch64/cpu-features.c
index 4243ceda07..28dfcef8a9 100644
--- a/sysdeps/unix/sysv/linux/aarch64/cpu-features.c
+++ b/sysdeps/unix/sysv/linux/aarch64/cpu-features.c
@@ -37,6 +37,7 @@ static struct cpu_list cpu_list[] = {
{"thunderx2t99p1", 0x420F5160},
{"phecda", 0x680F0000},
{"ares", 0x411FD0C0},
+ {"emag", 0x503F0001},
{"generic", 0x0}
};
diff --git a/sysdeps/unix/sysv/linux/aarch64/cpu-features.h b/sysdeps/unix/sysv/linux/aarch64/cpu-features.h
index 6f8b35ff09..127391138d 100644
--- a/sysdeps/unix/sysv/linux/aarch64/cpu-features.h
+++ b/sysdeps/unix/sysv/linux/aarch64/cpu-features.h
@@ -54,6 +54,9 @@
#define IS_ARES(midr) (MIDR_IMPLEMENTOR(midr) == 'A' \
&& MIDR_PARTNUM(midr) == 0xd0c)
+#define IS_EMAG(midr) (MIDR_IMPLEMENTOR(midr) == 'P' \
+ && MIDR_PARTNUM(midr) == 0x000)
+
struct cpu_features
{
uint64_t midr_el1;