Support setting the platform profile

common/common-profile.c

@@ -0,0 +1,78 @@
+/*
+
+Copyright (c) 2025, MithicSpirit
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice,
+   this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+ * Neither the name of Feral Interactive nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+
+ */
+
+#define _GNU_SOURCE
+
+#include "common-profile.h"
+#include "common-logging.h"
+
+/**
+ * Path for platform profile
+ */
+const char *profile_path = "/sys/firmware/acpi/platform_profile";
+
+/**
+ * Return the current platform profile state
+ */
+const char *get_profile_state(void)
+{
+	/* Persistent profile state */
+	static char profile[64] = { 0 };
+	memset(profile, 0, sizeof(profile));
+
+	FILE *f = fopen(profile_path, "r");
+	if (!f) {
+		LOG_ERROR("Failed to open file for read %s\n", profile_path);
+		return "none";
+	}
+
+	/* Grab the file length */
+	fseek(f, 0, SEEK_END);
+	long length = ftell(f);
+	fseek(f, 0, SEEK_SET);
+
+	if (length == -1) {
+		LOG_ERROR("Failed to seek file %s\n", profile_path);
+	} else {
+		char contents[length + 1];
+
+		if (fread(contents, 1, (size_t)length, f) > 0) {
+			strtok(contents, "\n");
+			strncpy(profile, contents, sizeof(profile) - 1);
+		} else {
+			LOG_ERROR("Failed to read contents of %s\n", profile_path);
+		}
+	}
+
+	fclose(f);
+
+	return profile;
+}

common/common-profile.h

@@ -0,0 +1,44 @@
+/*
+
+Copyright (c) 2025, MithicSpirit
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice,
+   this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+ * Neither the name of Feral Interactive nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+
+ */
+
+#pragma once
+
+#include <linux/limits.h>
+
+/**
+ * Path for platform profile
+ */
+extern const char *profile_path;
+
+/**
+ * Get the current platform profile state
+ */
+const char *get_profile_state(void);

common/common-splitlock.c

@@ -0,0 +1,64 @@
+/*
+
+Copyright (c) 2025, MithicSpirit
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice,
+   this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+ * Neither the name of Feral Interactive nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+
+ */
+
+#define _GNU_SOURCE
+
+#include "common-splitlock.h"
+#include "common-logging.h"
+
+/**
+ * Path for the split lock mitigation state
+ */
+const char *splitlock_path = "/proc/sys/kernel/split_lock_mitigate";
+
+/**
+ * Return the current split lock mitigation state
+ */
+long get_splitlock_state(void)
+{
+	FILE *f = fopen(splitlock_path, "r");
+	if (!f) {
+		LOG_ERROR("Failed to open file for read %s\n", splitlock_path);
+		return -1;
+	}
+
+	char contents[41] = { 0 };
+	long value = -1;
+
+	if (fread(contents, 1, sizeof contents - 1, f) > 0) {
+		value = strtol(contents, NULL, 10);
+	} else {
+		LOG_ERROR("Failed to read contents of %s\n", splitlock_path);
+	}
+	fclose(f);
+
+	return value;
+}

common/common-splitlock.h

@@ -0,0 +1,44 @@
+/*
+
+Copyright (c) 2025, MithicSpirit
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice,
+   this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+ * Neither the name of Feral Interactive nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+
+ */
+
+#pragma once
+
+#include <linux/limits.h>
+
+/**
+ * Path for the split lock mitagation state
+ */
+extern const char *splitlock_path;
+
+/**
+ * Get the current split lock mitigation state
+ */
+long get_splitlock_state(void);

common/meson.build

@@ -2,6 +2,8 @@
 common_sources = [
     'common-logging.c',
     'common-governors.c',
+    'common-profile.c',
+    'common-splitlock.c',
     'common-external.c',
     'common-helpers.c',
     'common-gpu.c',

daemon/gamemode-config.c

@@ -88,6 +88,9 @@ struct GameModeConfig {
 		char defaultgov[CONFIG_VALUE_MAX];
 		char desiredgov[CONFIG_VALUE_MAX];
 
+		char defaultprof[CONFIG_VALUE_MAX];
+		char desiredprof[CONFIG_VALUE_MAX];
+
 		char igpu_desiredgov[CONFIG_VALUE_MAX];
 		float igpu_power_threshold;
 
@@ -265,6 +268,10 @@ static int inih_handler(void *user, const char *section, const char *name, const
 			valid = get_string_value(value, self->values.defaultgov);
 		} else if (strcmp(name, "desiredgov") == 0) {
 			valid = get_string_value(value, self->values.desiredgov);
+		} else if (strcmp(name, "defaultprof") == 0) {
+			valid = get_string_value(value, self->values.defaultprof);
+		} else if (strcmp(name, "desiredprof") == 0) {
+			valid = get_string_value(value, self->values.desiredprof);
 		} else if (strcmp(name, "igpu_desiredgov") == 0) {
 			valid = get_string_value(value, self->values.igpu_desiredgov);
 		} else if (strcmp(name, "igpu_power_threshold") == 0) {
@@ -691,13 +698,29 @@ void config_get_default_governor(GameModeConfig *self, char governor[CONFIG_VALU
 }
 
 /*
- * Get the chosen desired governor
+ * Get the chosen desired platform profile
  */
 void config_get_desired_governor(GameModeConfig *self, char governor[CONFIG_VALUE_MAX])
 {
 	memcpy_locked_config(self, governor, self->values.desiredgov, sizeof(self->values.desiredgov));
 }
 
+/*
+ * Get the chosen default platform profile
+ */
+void config_get_default_profile(GameModeConfig *self, char profile[CONFIG_VALUE_MAX])
+{
+	memcpy_locked_config(self, profile, self->values.defaultprof, sizeof(self->values.defaultprof));
+}
+
+/*
+ * Get the chosen desired governor
+ */
+void config_get_desired_profile(GameModeConfig *self, char profile[CONFIG_VALUE_MAX])
+{
+	memcpy_locked_config(self, profile, self->values.desiredprof, sizeof(self->values.desiredprof));
+}
+
 /*
  * Get the chosen iGPU desired governor
  */

daemon/gamemode-config.h

@@ -102,6 +102,8 @@ bool config_get_inhibit_screensaver(GameModeConfig *self);
 long config_get_script_timeout(GameModeConfig *self);
 void config_get_default_governor(GameModeConfig *self, char governor[CONFIG_VALUE_MAX]);
 void config_get_desired_governor(GameModeConfig *self, char governor[CONFIG_VALUE_MAX]);
+void config_get_default_profile(GameModeConfig *self, char profile[CONFIG_VALUE_MAX]);
+void config_get_desired_profile(GameModeConfig *self, char profile[CONFIG_VALUE_MAX]);
 void config_get_igpu_desired_governor(GameModeConfig *self, char governor[CONFIG_VALUE_MAX]);
 float config_get_igpu_power_threshold(GameModeConfig *self);
 void config_get_soft_realtime(GameModeConfig *self, char softrealtime[CONFIG_VALUE_MAX]);