summaryrefslogtreecommitdiff
path: root/src/include
diff options
context:
space:
mode:
Diffstat (limited to 'src/include')
-rw-r--r--src/include/acpi/acpigen_dptf.h24
1 files changed, 24 insertions, 0 deletions
diff --git a/src/include/acpi/acpigen_dptf.h b/src/include/acpi/acpigen_dptf.h
index 214578a4c1..45fbe8f29f 100644
--- a/src/include/acpi/acpigen_dptf.h
+++ b/src/include/acpi/acpigen_dptf.h
@@ -28,6 +28,7 @@ enum {
DPTF_MAX_ACX = 10,
DPTF_MAX_ACTIVE_POLICIES = (DPTF_PARTICIPANT_COUNT-1),
DPTF_MAX_PASSIVE_POLICIES = (DPTF_PARTICIPANT_COUNT-1),
+ DPTF_MAX_CRITICAL_POLICIES = (DPTF_PARTICIPANT_COUNT-1),
};
/* Active Policy */
@@ -59,6 +60,22 @@ struct dptf_passive_policy {
uint8_t priority;
};
+/* Critical Policy type: graceful S4 transition or graceful shutdown */
+enum dptf_critical_policy_type {
+ DPTF_CRITICAL_S4,
+ DPTF_CRITICAL_SHUTDOWN,
+};
+
+/* Critical Policy */
+struct dptf_critical_policy {
+ /* The device that can trigger a critical event */
+ enum dptf_participant source;
+ /* What type of critical policy */
+ enum dptf_critical_policy_type type;
+ /* Temperature to activate policy, degrees C */
+ uint8_t temp;
+};
+
/*
* This function provides tables of temperature and corresponding fan or percent. When the
* temperature thresholds are met (_AC0 - _AC9), the fan is driven to corresponding percentage
@@ -74,6 +91,13 @@ void dptf_write_active_policies(const struct dptf_active_policy *policies, int m
*/
void dptf_write_passive_policies(const struct dptf_passive_policy *policies, int max_count);
+/*
+ * Critical policies are temperature thresholds that, when reached, will cause the system to
+ * take some emergency action in order to eliminate excess temperatures from damaging the
+ * system. The emergency actions are a graceful suspend or a graceful shutdown.
+ */
+void dptf_write_critical_policies(const struct dptf_critical_policy *policies, int max_count);
+
/* Helper method to open the scope for a given participant. */
void dptf_write_scope(enum dptf_participant participant);