struct psci_operations psci_ops = {
.conduit = PSCI_CONDUIT_NONE,
+ .smccc_version = SMCCC_VERSION_1_0,
};
typedef unsigned long (psci_fn)(unsigned long, unsigned long,
pr_info("Trusted OS resident on physical CPU 0x%lx\n", cpuid);
}
+static void __init psci_init_smccc(void)
+{
+ u32 ver = ARM_SMCCC_VERSION_1_0;
+ int feature;
+
+ feature = psci_features(ARM_SMCCC_VERSION_FUNC_ID);
+
+ if (feature != PSCI_RET_NOT_SUPPORTED) {
+ u32 ret;
+ ret = invoke_psci_fn(ARM_SMCCC_VERSION_FUNC_ID, 0, 0, 0);
+ if (ret == ARM_SMCCC_VERSION_1_1) {
+ psci_ops.smccc_version = SMCCC_VERSION_1_1;
+ ver = ret;
+ }
+ }
+
+ /*
+ * Conveniently, the SMCCC and PSCI versions are encoded the
+ * same way. No, this isn't accidental.
+ */
+ pr_info("SMC Calling Convention v%d.%d\n",
+ PSCI_VERSION_MAJOR(ver), PSCI_VERSION_MINOR(ver));
+
+}
+
static void __init psci_0_2_set_functions(void)
{
pr_info("Using standard PSCI v0.2 function IDs\n");
psci_init_migrate();
if (PSCI_VERSION_MAJOR(ver) >= 1) {
+ psci_init_smccc();
psci_init_cpu_suspend();
psci_init_system_suspend();
}
PSCI_CONDUIT_HVC,
};
+enum smccc_version {
+ SMCCC_VERSION_1_0,
+ SMCCC_VERSION_1_1,
+};
+
struct psci_operations {
int (*cpu_suspend)(u32 state, unsigned long entry_point);
int (*cpu_off)(u32 state);
unsigned long lowest_affinity_level);
int (*migrate_info_type)(void);
enum psci_conduit conduit;
+ enum smccc_version smccc_version;
};
extern struct psci_operations psci_ops;