/*
* sets master_ops_debug flag from propertyu passed by the boot
*/
static void
set_master_ops_debug_flags()
{
char *prop;
long flags;
if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(),
DDI_PROP_DONTPASS, "master_ops_debug", &prop) == DDI_PROP_SUCCESS) {
long data;
if (ddi_strtol(prop, NULL, 0, &data) == 0) {
master_ops_debug = (unsigned long)data;
e_ddi_prop_remove(DDI_DEV_T_NONE, ddi_root_node(),
"master_ops_debug");
e_ddi_prop_update_int(DDI_DEV_T_NONE, ddi_root_node(),
"master_ops_debug", data);
}
ddi_prop_free(prop);
}
}
/*
* Initialize the CA subsystem if it hasn't been done already
*/
int
acpica_init()
{
extern void acpica_find_ioapics(void);
ACPI_STATUS status;
/*
* Make sure user options are processed,
* then fail to initialize if ACPI CA has been
* disabled
*/
acpica_process_user_options();
if (!acpica_enable)
return (AE_ERROR);
mutex_enter(&acpica_module_lock);
if (acpica_init_state == ACPICA_INITIALIZED) {
mutex_exit(&acpica_module_lock);
return (AE_OK);
}
if (ACPI_FAILURE(status = AcpiLoadTables()))
goto error;
if (ACPI_FAILURE(status = acpica_install_handlers()))
goto error;
/*
* Create ACPI-to-devinfo mapping now so _INI and _STA
* methods can access PCI config space when needed
*/
scan_d2a_map();
if (ACPI_FAILURE(status = AcpiEnableSubsystem(acpi_init_level)))
goto error;
/* do after AcpiEnableSubsystem() so GPEs are initialized */
acpica_ec_init(); /* initialize EC if present */
/* This runs all device _STA and _INI methods. */
if (ACPI_FAILURE(status = AcpiInitializeObjects(0)))
goto error;
acpica_init_state = ACPICA_INITIALIZED;
/*
* [ACPI, sec. 4.4.1.1]
* As of ACPICA version 20101217 (December 2010), the _PRW methods
* (Power Resources for Wake) are no longer automatically executed
* as part of the ACPICA initialization. The OS must do this.
*/
(void) AcpiWalkNamespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
UINT32_MAX, acpica_init_PRW, NULL, NULL, NULL);
(void) AcpiUpdateAllGpes();
/*
* If we are running on the Xen hypervisor as dom0 we need to
* find the ioapics so we can prevent ACPI from trying to
* access them.
*/
if (get_hwenv() == HW_XEN_PV && is_controldom())
acpica_find_ioapics();
acpica_init_kstats();
error:
if (acpica_init_state != ACPICA_INITIALIZED) {
cmn_err(CE_NOTE, "!failed to initialize ACPI services");
}
/*
* Set acpi-status to 13 if acpica has been initialized successfully.
* This indicates that acpica is up and running. This variable name
* and value were chosen in order to remain compatible with acpi_intp.
*/
e_ddi_prop_update_int(DDI_DEV_T_NONE, ddi_root_node(), "acpi-status",
(ACPI_SUCCESS(status)) ? (ACPI_BOOT_INIT | ACPI_BOOT_ENABLE |
ACPI_BOOT_BOOTCONF) : 0);
/* Mark acpica subsystem as fully initialized. */
if (ACPI_SUCCESS(status) &&
acpi_init_level == ACPI_FULL_INITIALIZATION) {
acpica_set_core_feature(ACPI_FEATURE_FULL_INIT);
}
mutex_exit(&acpica_module_lock);
return (status);
}
/*
* Process acpi-user-options property if present
*/
static void
acpica_process_user_options()
{
static int processed = 0;
int acpi_user_options;
char *acpi_prop;
/*
* return if acpi-user-options has already been processed
*/
if (processed)
return;
else
processed = 1;
/* converts acpi-user-options from type string to int, if any */
if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(),
DDI_PROP_DONTPASS, "acpi-user-options", &acpi_prop) ==
DDI_PROP_SUCCESS) {
long data;
int ret;
ret = ddi_strtol(acpi_prop, NULL, 0, &data);
if (ret == 0) {
e_ddi_prop_remove(DDI_DEV_T_NONE, ddi_root_node(),
"acpi-user-options");
e_ddi_prop_update_int(DDI_DEV_T_NONE, ddi_root_node(),
"acpi-user-options", data);
}
ddi_prop_free(acpi_prop);
}
/*
* fetch the optional options property
*/
acpi_user_options = ddi_prop_get_int(DDI_DEV_T_ANY, ddi_root_node(),
DDI_PROP_DONTPASS, "acpi-user-options", 0);
/*
* Note that 'off' has precedence over 'on'
* Also note - all cases of ACPI_OUSER_MASK
* provided here, no default: case is present
*/
switch (acpi_user_options & ACPI_OUSER_MASK) {
case ACPI_OUSER_DFLT:
acpica_enable = acpica_check_bios_date(1999, 1, 1);
break;
case ACPI_OUSER_ON:
acpica_enable = TRUE;
break;
case ACPI_OUSER_OFF:
case ACPI_OUSER_OFF | ACPI_OUSER_ON:
acpica_enable = FALSE;
break;
}
acpi_init_level = ACPI_FULL_INITIALIZATION;
/*
* special test here; may be generalized in the
* future - test for a machines that are known to
* work only in legacy mode, and set OUSER_LEGACY if
* we're on one
*/
if (acpica_metro_old_bios())
acpi_user_options |= ACPI_OUSER_LEGACY;
/*
* If legacy mode is specified, set initialization
* options to avoid entering ACPI mode and hooking SCI
* - basically try to act like legacy acpi_intp
*/
if ((acpi_user_options & ACPI_OUSER_LEGACY) != 0)
acpi_init_level |= (ACPI_NO_ACPI_ENABLE | ACPI_NO_HANDLER_INIT);
/*
* modify default ACPI CA debug output level for non-DEBUG builds
* (to avoid BIOS debug chatter in /var/adm/messages)
*/
if (acpica_muzzle_debug_output)
AcpiDbgLevel = 0;
}
