diff options
Diffstat (limited to 'src/include/acpi/acpigen_dptf.h')
| -rw-r--r-- | src/include/acpi/acpigen_dptf.h | 24 |
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); |