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| author | Robert Mustacchi <rm@joyent.com> | 2019-05-01 16:19:13 +0000 |
|---|---|---|
| committer | Robert Mustacchi <rm@joyent.com> | 2019-05-09 03:17:34 +0000 |
| commit | d0e58ef5d66890a3cd67c9c6eb8c823f9865a70f (patch) | |
| tree | 4ceb1df56c86753eb2548678b40e7ce33d96b5ba /usr/src/uts/intel/ia32/os/cpc_subr.c | |
| parent | c18e9bc303e04175d63c5c51206b2ce6f6efe6a4 (diff) | |
| download | illumos-gate-d0e58ef5d66890a3cd67c9c6eb8c823f9865a70f.tar.gz | |
10896 Want support for AMD Zen CPC events
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>
Reviewed by: Patrick Mooney <patrick.mooney@joyent.com>
Reviewed by: Dan McDonald <danmcd@joyent.com>
Approved by: Richard Lowe <richlowe@richlowe.net>
Diffstat (limited to 'usr/src/uts/intel/ia32/os/cpc_subr.c')
| -rw-r--r-- | usr/src/uts/intel/ia32/os/cpc_subr.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/usr/src/uts/intel/ia32/os/cpc_subr.c b/usr/src/uts/intel/ia32/os/cpc_subr.c index b15c57a8e5..f7b86fd602 100644 --- a/usr/src/uts/intel/ia32/os/cpc_subr.c +++ b/usr/src/uts/intel/ia32/os/cpc_subr.c @@ -20,6 +20,7 @@ */ /* * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. + * Copyright 2019 Joyent, Inc. */ /* @@ -139,6 +140,12 @@ kcpc_hw_init(cpu_t *cp) strands_perfmon_shared = 1; } } + } else if (cpuid_getvendor(cpu[0]) == X86_VENDOR_AMD) { + /* + * On AMD systems with HT, all of the performance + * monitors exist on a per-logical CPU basis. + */ + strands_perfmon_shared = 0; } else { strands_perfmon_shared = 1; } |