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Mon, 08 Mar 2021 13:02:44 -0800 (PST) From: Jason Andryuk To: xen-devel@lists.xenproject.org Cc: pawel@invisiblethingslab.com, marmarek@invisiblethingslab.com, Jason Andryuk , Ian Jackson , Wei Liu Subject: [RFC 11/12] libxc: Add xc_set_cpufreq_hwp Date: Mon, 8 Mar 2021 16:02:09 -0500 Message-Id: <20210308210210.116278-12-jandryuk@gmail.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210308210210.116278-1-jandryuk@gmail.com> References: <20210308210210.116278-1-jandryuk@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @gmail.com) Content-Type: text/plain; charset="utf-8" Add xc_set_cpufreq_hwp to allow calling xen_systctl_pm_op SET_CPUFREQ_HWP. Signed-off-by: Jason Andryuk --- Am I allowed to do set_hwp =3D *set_hwp struct assignment? --- tools/include/xenctrl.h | 4 ++++ tools/libs/ctrl/xc_pm.c | 18 ++++++++++++++++++ 2 files changed, 22 insertions(+) diff --git a/tools/include/xenctrl.h b/tools/include/xenctrl.h index 3b0ca62fc7..dc8e1bb23a 100644 --- a/tools/include/xenctrl.h +++ b/tools/include/xenctrl.h @@ -1994,11 +1994,15 @@ struct xc_get_cpufreq_para { int32_t turbo_enabled; }; =20 +typedef struct xen_set_hwp_para xc_set_hwp_para_t; + int xc_get_cpufreq_para(xc_interface *xch, int cpuid, struct xc_get_cpufreq_para *user_para); int xc_set_cpufreq_gov(xc_interface *xch, int cpuid, char *govname); int xc_set_cpufreq_para(xc_interface *xch, int cpuid, int ctrl_type, int ctrl_value); +int xc_set_cpufreq_hwp(xc_interface *xch, int cpuid, + xc_set_hwp_para_t *set_hwp); int xc_get_cpufreq_avgfreq(xc_interface *xch, int cpuid, int *avg_freq); =20 int xc_set_sched_opt_smt(xc_interface *xch, uint32_t value); diff --git a/tools/libs/ctrl/xc_pm.c b/tools/libs/ctrl/xc_pm.c index 76d7eb7f26..407a24d2aa 100644 --- a/tools/libs/ctrl/xc_pm.c +++ b/tools/libs/ctrl/xc_pm.c @@ -330,6 +330,24 @@ int xc_set_cpufreq_para(xc_interface *xch, int cpuid, return xc_sysctl(xch, &sysctl); } =20 +int xc_set_cpufreq_hwp(xc_interface *xch, int cpuid, + xc_set_hwp_para_t *set_hwp) +{ + DECLARE_SYSCTL; + + if ( !xch ) + { + errno =3D EINVAL; + return -1; + } + sysctl.cmd =3D XEN_SYSCTL_pm_op; + sysctl.u.pm_op.cmd =3D SET_CPUFREQ_HWP; + sysctl.u.pm_op.cpuid =3D cpuid; + sysctl.u.pm_op.u.set_hwp =3D *set_hwp; + + return xc_sysctl(xch, &sysctl); +} + int xc_get_cpufreq_avgfreq(xc_interface *xch, int cpuid, int *avg_freq) { int ret =3D 0; --=20 2.29.2