--- cpufreq/src/cpufreq-selector/Makefile.am.orig	2021-08-07 11:25:17 UTC
+++ cpufreq/src/cpufreq-selector/Makefile.am
@@ -24,7 +24,7 @@ mate_cpufreq_selector_SOURCES = \
 	$(service_files)						\
 	cpufreq-selector-factory.c	 cpufreq-selector-factory.h	\
 	$(BUILT_SOURCES)						\
-	main.c
+	main.c cpufreq-selector-sysctl.c cpufreq-selector-sysctl.h
 
 if HAVE_LIBCPUFREQ
 mate_cpufreq_selector_SOURCES += \
--- cpufreq/src/cpufreq-selector/cpufreq-selector-factory.c.orig	2021-08-07 11:25:17 UTC
+++ cpufreq/src/cpufreq-selector/cpufreq-selector-factory.c
@@ -27,19 +27,29 @@
 #else
 #include "cpufreq-selector-sysfs.h"
 #endif
+#ifdef __FreeBSD__
+#include "cpufreq-selector-sysctl.h"
+#endif /* __FreeBSD__ */
 
 CPUFreqSelector *
 cpufreq_selector_factory_create_selector (guint cpu)
 {
+#ifdef __FreeBSD__
+   size_t len;
+#endif
 #ifdef HAVE_LIBCPUFREQ
     return cpufreq_selector_libcpufreq_new (cpu);
 #else
     CPUFreqSelector *selector = NULL;
-
+#ifndef __FreeBSD__
     if (g_file_test ("/sys/devices/system/cpu/cpu0/cpufreq", G_FILE_TEST_EXISTS)) {
         selector = cpufreq_selector_sysfs_new (cpu);
     }
-
+#else
+   if (sysctlbyname ("dev.cpu.0.freq", NULL, &len, NULL, 0) == 0) {
+       selector = cpufreq_selector_sysctl_new (cpu);
+   }
+#endif /* __FreeBSD__ */
     return selector;
 #endif /* HAVE_LIBCPUFREQ */
 }
--- cpufreq/src/cpufreq-selector/cpufreq-selector-sysctl.c.orig	2021-10-12 01:37:36 UTC
+++ cpufreq/src/cpufreq-selector/cpufreq-selector-sysctl.c
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2001, 2002 Free Software Foundation
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public
+ *  License along with this library; if not, write to the Free
+ *  Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Authors : Joe Marcus Clarke <marcus@FreeBSD.org>
+ */
+
+#include <glib.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#ifdef __FreeBSD__
+#include <sys/types.h>
+#include <sys/sysctl.h>
+#endif /* __FreeBSD__ */
+
+#include "cpufreq-selector-sysctl.h"
+
+static void cpufreq_selector_sysctl_init	(CPUFreqSelectorSysctl *selector);
+static void cpufreq_selector_sysctl_class_init	(CPUFreqSelectorSysctlClass *klass);
+
+static gboolean cpufreq_selector_sysctl_set_frequency	(CPUFreqSelector *selector, guint frequency, GError **error);
+static gboolean cpufreq_selector_sysctl_set_governor	(CPUFreqSelector *selector, const gchar *governor, GError **error);
+
+G_DEFINE_TYPE (CPUFreqSelectorSysctl, cpufreq_selector_sysctl, CPUFREQ_TYPE_SELECTOR)
+
+static void
+cpufreq_selector_sysctl_init (CPUFreqSelectorSysctl *selector)
+{
+}
+
+static void
+cpufreq_selector_sysctl_class_init (CPUFreqSelectorSysctlClass *klass)
+{
+	CPUFreqSelectorClass *selector_class = CPUFREQ_SELECTOR_CLASS (klass);
+
+	selector_class->set_frequency = cpufreq_selector_sysctl_set_frequency;
+	selector_class->set_governor = cpufreq_selector_sysctl_set_governor;
+}
+
+CPUFreqSelector *
+cpufreq_selector_sysctl_new (guint cpu)
+{
+	CPUFreqSelector *selector;
+
+	selector = CPUFREQ_SELECTOR (g_object_new (CPUFREQ_TYPE_SELECTOR_SYSCTL,
+				                   "cpu", cpu, NULL));
+
+	return selector;
+}
+
+static gboolean
+cpufreq_selector_sysctl_set_governor (CPUFreqSelector *selector, const gchar *governor, GError **error)
+{
+	return TRUE;
+}
+
+static gboolean
+cpufreq_selector_sysctl_set_frequency (CPUFreqSelector *selector, guint frequency, GError **error)
+{
+	   guint                 cpu, i;
+	   size_t                len;
+	   gchar                *freq_oid;
+
+	   g_object_get (G_OBJECT (selector), "cpu", &cpu, NULL);
+
+	   frequency = (guint) ((gdouble) frequency / 1000); /* Convert back to MHz*/
+           freq_oid = g_strdup_printf ("dev.cpu.%d.freq", (gint) 0);
+
+           sysctlbyname (freq_oid, NULL, &len, &frequency, sizeof (frequency));
+           g_free (freq_oid);
+
+	   return TRUE;
+}
--- cpufreq/src/cpufreq-selector/cpufreq-selector-sysctl.h.orig	2021-10-12 01:37:36 UTC
+++ cpufreq/src/cpufreq-selector/cpufreq-selector-sysctl.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2001, 2002 Free Software Foundation
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public
+ *  License along with this library; if not, write to the Free
+ *  Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Authors : Joe Marcus Clarke <marcus@FreeBSD.org>
+ */
+
+#ifndef __CPUFREQ_SELECTOR_SYSCTL_H__
+#define __CPUFREQ_SELECTOR_SYSCTL_H__
+
+#include <glib-object.h>
+
+#include "cpufreq-selector.h"
+
+G_BEGIN_DECLS
+
+#define CPUFREQ_TYPE_SELECTOR_SYSCTL            (cpufreq_selector_sysctl_get_type ())
+#define CPUFREQ_SELECTOR_SYSCTL(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), CPUFREQ_TYPE_SELECTOR_SYSCTL, CPUFreqSelectorProcfs))
+#define CPUFREQ_SELECTOR_SYSCTL_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass), CPUFREQ_TYPE_SELECTOR_SYSCTL, CPUFreqSelectorProcfsClass))
+#define CPUFREQ_IS_SELECTOR_SYSCTL(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CPUFREQ_TYPE_SELECTOR_SYSCTL))
+#define CPUFREQ_IS_SELECTOR_SYSCTL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CPUFREQ_TYPE_SELECTOR_SYSCTL))
+#define CPUFREQ_SELECTOR_SYSCTL_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), CPUFREQ_TYPE_SELECTOR_SYSCTL, CPUFreqSelectorProcfsClass))
+
+typedef struct _CPUFreqSelectorSysctl		CPUFreqSelectorSysctl;
+typedef struct _CPUFreqSelectorSysctlClass	CPUFreqSelectorSysctlClass;
+
+struct _CPUFreqSelectorSysctl {
+	CPUFreqSelector parent;
+};
+
+struct _CPUFreqSelectorSysctlClass {
+	CPUFreqSelectorClass parent_class;
+};
+
+GType		cpufreq_selector_sysctl_get_type (void) G_GNUC_CONST;
+CPUFreqSelector	*cpufreq_selector_sysctl_new     (guint cpu);
+
+G_END_DECLS
+
+#endif /* __CPUFREQ_SELECTOR_SYSCTL_H__ */
