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Support setting the platform profile

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The platform profile lives in /sys/firmware/acpi/platform_profile. The
desiredprof and defaultprof options correspond to the values for the
platform profile set when gamescope begins and ends, respectively.

HACK: The platform profile may restrict what values the governor can
take, so we choose to set the governor before the platform profile in
order to store the correct default governor, and restore the platform
profile before the governor. This is done to maximize correctness after
restoration, but it can cause issues if the previous platform profile
restricts the governor.

TODO: Save all the state we care about before any of it is changed. In
thsi case, we should set (and restore) the platform profile before the
governor.
This commit is contained in:
MithicSpirit
2025-01-28 18:36:47 -05:00
committed by afayaz-feral
parent 81d26c79b4
commit e75f2c3942
11 changed files with 333 additions and 2 deletions
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25
daemon/gamemode-config.c
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@@ -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
*/