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

source/trusted-firmware/trusted-firmware-a-2.8/plat/qemu/common/qemu_gicv3.c

@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2019, Linaro Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <drivers/arm/gicv3.h>
+#include <drivers/arm/gic_common.h>
+#include <platform_def.h>
+#include <plat/common/platform.h>
+
+static const interrupt_prop_t qemu_interrupt_props[] = {
+	PLATFORM_G1S_PROPS(INTR_GROUP1S),
+	PLATFORM_G0_PROPS(INTR_GROUP0)
+};
+
+static uintptr_t qemu_rdistif_base_addrs[PLATFORM_CORE_COUNT];
+
+static unsigned int qemu_mpidr_to_core_pos(unsigned long mpidr)
+{
+	return (unsigned int)plat_core_pos_by_mpidr(mpidr);
+}
+
+static const gicv3_driver_data_t qemu_gicv3_driver_data = {
+	.gicd_base = GICD_BASE,
+	.gicr_base = GICR_BASE,
+	.interrupt_props = qemu_interrupt_props,
+	.interrupt_props_num = ARRAY_SIZE(qemu_interrupt_props),
+	.rdistif_num = PLATFORM_CORE_COUNT,
+	.rdistif_base_addrs = qemu_rdistif_base_addrs,
+	.mpidr_to_core_pos = qemu_mpidr_to_core_pos
+};
+
+void plat_qemu_gic_init(void)
+{
+	gicv3_driver_init(&qemu_gicv3_driver_data);
+	gicv3_distif_init();
+	gicv3_rdistif_init(plat_my_core_pos());
+	gicv3_cpuif_enable(plat_my_core_pos());
+}
+
+void qemu_pwr_gic_on_finish(void)
+{
+	gicv3_rdistif_init(plat_my_core_pos());
+	gicv3_cpuif_enable(plat_my_core_pos());
+}
+
+void qemu_pwr_gic_off(void)
+{
+	gicv3_cpuif_disable(plat_my_core_pos());
+	gicv3_rdistif_off(plat_my_core_pos());
+}