GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/trusted-firmware/trusted-firmware-a-2.8/lib/psci/psci_system_off.c

@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2014-2020, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <stddef.h>
+
+#include <arch_helpers.h>
+#include <common/debug.h>
+#include <drivers/console.h>
+#include <plat/common/platform.h>
+
+#include "psci_private.h"
+
+void __dead2 psci_system_off(void)
+{
+	psci_print_power_domain_map();
+
+	assert(psci_plat_pm_ops->system_off != NULL);
+
+	/* Notify the Secure Payload Dispatcher */
+	if ((psci_spd_pm != NULL) && (psci_spd_pm->svc_system_off != NULL)) {
+		psci_spd_pm->svc_system_off();
+	}
+
+	console_flush();
+
+	/* Call the platform specific hook */
+	psci_plat_pm_ops->system_off();
+
+	/* This function does not return. We should never get here */
+}
+
+void __dead2 psci_system_reset(void)
+{
+	psci_print_power_domain_map();
+
+	assert(psci_plat_pm_ops->system_reset != NULL);
+
+	/* Notify the Secure Payload Dispatcher */
+	if ((psci_spd_pm != NULL) && (psci_spd_pm->svc_system_reset != NULL)) {
+		psci_spd_pm->svc_system_reset();
+	}
+
+	console_flush();
+
+	/* Call the platform specific hook */
+	psci_plat_pm_ops->system_reset();
+
+	/* This function does not return. We should never get here */
+}
+
+u_register_t psci_system_reset2(uint32_t reset_type, u_register_t cookie)
+{
+	unsigned int is_vendor;
+
+	psci_print_power_domain_map();
+
+	assert(psci_plat_pm_ops->system_reset2 != NULL);
+
+	is_vendor = (reset_type >> PSCI_RESET2_TYPE_VENDOR_SHIFT) & 1U;
+	if (is_vendor == 0U) {
+		/*
+		 * Only WARM_RESET is allowed for architectural type resets.
+		 */
+		if (reset_type != PSCI_RESET2_SYSTEM_WARM_RESET)
+			return (u_register_t) PSCI_E_INVALID_PARAMS;
+		if ((psci_plat_pm_ops->write_mem_protect != NULL) &&
+		    (psci_plat_pm_ops->write_mem_protect(0) < 0)) {
+			return (u_register_t) PSCI_E_NOT_SUPPORTED;
+		}
+	}
+
+	/* Notify the Secure Payload Dispatcher */
+	if ((psci_spd_pm != NULL) && (psci_spd_pm->svc_system_reset != NULL)) {
+		psci_spd_pm->svc_system_reset();
+	}
+	console_flush();
+
+	return (u_register_t)
+		psci_plat_pm_ops->system_reset2((int) is_vendor, reset_type,
+						cookie);
+}