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

source/trusted-firmware/trusted-firmware-a-2.8/plat/nvidia/tegra/common/tegra_gicv2.c

@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2020, NVIDIA Corporation. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <platform_def.h>
+
+#include <common/bl_common.h>
+#include <drivers/arm/gicv2.h>
+#include <lib/utils.h>
+#include <plat/common/platform.h>
+
+#include <tegra_private.h>
+#include <tegra_def.h>
+
+static unsigned int tegra_target_masks[PLATFORM_CORE_COUNT];
+
+/******************************************************************************
+ * Tegra common helper to setup the GICv2 driver data.
+ *****************************************************************************/
+void tegra_gic_setup(const interrupt_prop_t *interrupt_props,
+		     unsigned int interrupt_props_num)
+{
+	/*
+	 * Tegra GIC configuration settings
+	 */
+	static gicv2_driver_data_t tegra_gic_data;
+
+	/*
+	 * Register Tegra GICv2 driver
+	 */
+	tegra_gic_data.gicd_base = TEGRA_GICD_BASE;
+	tegra_gic_data.gicc_base = TEGRA_GICC_BASE;
+	tegra_gic_data.interrupt_props = interrupt_props;
+	tegra_gic_data.interrupt_props_num = interrupt_props_num;
+	tegra_gic_data.target_masks = tegra_target_masks;
+	tegra_gic_data.target_masks_num = ARRAY_SIZE(tegra_target_masks);
+	gicv2_driver_init(&tegra_gic_data);
+}
+
+/******************************************************************************
+ * Tegra common helper to initialize the GICv2 only driver.
+ *****************************************************************************/
+void tegra_gic_init(void)
+{
+	gicv2_distif_init();
+	gicv2_pcpu_distif_init();
+	gicv2_set_pe_target_mask(plat_my_core_pos());
+	gicv2_cpuif_enable();
+}
+
+/******************************************************************************
+ * Tegra common helper to disable the GICv2 CPU interface
+ *****************************************************************************/
+void tegra_gic_cpuif_deactivate(void)
+{
+	gicv2_cpuif_disable();
+}
+
+/******************************************************************************
+ * Tegra common helper to initialize the per cpu distributor interface
+ * in GICv2
+ *****************************************************************************/
+void tegra_gic_pcpu_init(void)
+{
+	gicv2_pcpu_distif_init();
+	gicv2_set_pe_target_mask(plat_my_core_pos());
+	gicv2_cpuif_enable();
+}