From: Karel Zak <kzak@redhat.com>
Date: Fri, 15 Mar 2019 12:33:40 +0000 (+0100)
Subject: lscpu: add 'Frequency boost'
X-Git-Tag: v2.34-rc1~61
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=16ca05511b90ba3204fccdad28b5526ba10263cf;p=thirdparty%2Futil-linux.git

lscpu: add 'Frequency boost'

Show turbo boost status on platforms where is available a file
/sys/devices/system/cpu/cpufreq/boost.

Addresses: https://github.com/karelzak/util-linux/issues/755
Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/sys-utils/lscpu.c b/sys-utils/lscpu.c
index 245be6e5ce..1d78dac369 100644
--- a/sys-utils/lscpu.c
+++ b/sys-utils/lscpu.c
@@ -508,6 +508,10 @@ read_basicinfo(struct lscpu_desc *desc, struct lscpu_modifier *mod)
 	if (ul_path_read_s32(desc->syscpu, &desc->dispatching, "dispatching") != 0)
 		desc->dispatching = -1;
 
+	/* get cpufreq boost mode */
+	if (ul_path_read_s32(desc->syscpu, &desc->freqboost, "cpufreq/boost") != 0)
+		desc->freqboost = -1;
+
 	if (mod->system == SYSTEM_LIVE)
 		read_physical_info_powerpc(desc);
 
@@ -1837,6 +1841,9 @@ print_summary(struct lscpu_desc *desc, struct lscpu_modifier *mod)
 		add_summary_s(tb, _("Model name:"), desc->cpu ? desc->cpu : desc->modelname);
 	if (desc->stepping)
 		add_summary_s(tb, _("Stepping:"), desc->stepping);
+	if (desc->freqboost >= 0)
+		add_summary_s(tb, _("Frequency boost:"), desc->freqboost ?
+				_("enabled") : _("disabled"));
 	if (desc->mhz)
 		add_summary_s(tb, _("CPU MHz:"), desc->mhz);
 	if (desc->dynamic_mhz)
diff --git a/sys-utils/lscpu.h b/sys-utils/lscpu.h
index 24bc11e968..a8311b33d0 100644
--- a/sys-utils/lscpu.h
+++ b/sys-utils/lscpu.h
@@ -105,6 +105,7 @@ struct lscpu_desc {
 	char	*mtid;		/* maximum thread id (s390) */
 	char	*addrsz;	/* address sizes */
 	int	dispatching;	/* none, horizontal or vertical */
+	int	freqboost;	/* -1 if not evailable */
 	int	mode;		/* rm, lm or/and tm */
 
 	int		ncpuspos;	/* maximal possible CPUs */
diff --git a/tests/expected/lscpu/lscpu-x86_64-epyc_7451 b/tests/expected/lscpu/lscpu-x86_64-epyc_7451
index c19474cfd4..a4af6ea0b9 100644
--- a/tests/expected/lscpu/lscpu-x86_64-epyc_7451
+++ b/tests/expected/lscpu/lscpu-x86_64-epyc_7451
@@ -11,6 +11,7 @@ CPU family:          23
 Model:               1
 Model name:          AMD EPYC 7451 24-Core Processor
 Stepping:            2
+Frequency boost:     enabled
 CPU MHz:             2894.214
 CPU max MHz:         2300.0000
 CPU min MHz:         1200.0000