diff mbox

[1/3] aarch64: Add AmpereComputing skylark to tunable cpu list

Message ID PS1PR0201MB1771D8B46491D280E5AF35F084E20@PS1PR0201MB1771.apcprd02.prod.outlook.com
State New, archived
Headers

Commit Message

Xue Feng Oct. 12, 2018, 11:49 a.m. UTC 
  I'm from AmpereComputing Corp, and working on adding support for Skylark processor to glibc.

Feng
---

Skylark 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 skylark.
    * sysdeps/unix/sysv/linux/aarch64/cpu-features.c (cpu_list):
    Add skylark.
    * sysdeps/unix/sysv/linux/aarch64/cpu-features.h (IS_SKYLARK):
    New macro.
---
 ChangeLog                                      | 8 ++++++++
 manual/tunables.texi                           | 2 +-
 sysdeps/unix/sysv/linux/aarch64/cpu-features.c | 1 +
 sysdeps/unix/sysv/linux/aarch64/cpu-features.h | 3 +++
 4 files changed, 13 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/ChangeLog b/ChangeLog
index 10b38cc..2533c9d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@ 
+2018-10-11  Feng Xue  <feng.xue@amperecomputing.com>
+
+	* manual/tunables.texi (Tunable glibc.cpu.name): Add skylark.
+	* sysdeps/unix/sysv/linux/aarch64/cpu-features.c (cpu_list):
+	Add skylark.
+	* sysdeps/unix/sysv/linux/aarch64/cpu-features.h (IS_SKYLARK):
+	New macro.
+
 2018-10-10  Joseph Myers  <joseph@codesourcery.com>
 
 	* sysdeps/unix/sysv/linux/bits/shm.h: Include <bits/wordsize.h>.
diff --git a/manual/tunables.texi b/manual/tunables.texi
index 3345a23..4fa61fc 100644
--- a/manual/tunables.texi
+++ b/manual/tunables.texi
@@ -333,7 +333,7 @@  This tunable is specific to powerpc, powerpc64 and powerpc64le.
 The @code{glibc.cpu.name=xxx} tunable allows the user to tell @theglibc{} to
 assume that the CPU is @code{xxx} where xxx may have one of these values:
 @code{generic}, @code{falkor}, @code{thunderxt88}, @code{thunderx2t99},
-@code{thunderx2t99p1}.
+@code{thunderx2t99p1}, @code{skylark}.
 
 This tunable is specific to aarch64.
 @end deftp
diff --git a/sysdeps/unix/sysv/linux/aarch64/cpu-features.c b/sysdeps/unix/sysv/linux/aarch64/cpu-features.c
index b4f3485..6448493 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},
+      {"skylark",	 0x503F0001},
       {"generic", 	 0x0}
 };
 
diff --git a/sysdeps/unix/sysv/linux/aarch64/cpu-features.h b/sysdeps/unix/sysv/linux/aarch64/cpu-features.h
index eb35adf..c53b65d 100644
--- a/sysdeps/unix/sysv/linux/aarch64/cpu-features.h
+++ b/sysdeps/unix/sysv/linux/aarch64/cpu-features.h
@@ -52,6 +52,9 @@ 
 #define IS_PHECDA(midr) (MIDR_IMPLEMENTOR(midr) == 'h'			      \
                         && MIDR_PARTNUM(midr) == 0x000)
 
+#define IS_SKYLARK(midr) (MIDR_IMPLEMENTOR(midr) == 'P'			      \
+                        && MIDR_PARTNUM(midr) == 0x000)
+
 struct cpu_features
 {
   uint64_t midr_el1;