plat/qemu: add gicv3 support for qemu
This patch adds gicv3 support for qemu, in order not to break any legacy
use case, gicv2 is still set by default, gicv3 can be selected by
compiling parameter QEMU_USE_GIC_DRIVER=QEMU_GICV3.
Signed-off-by: Hongbo Zhang <hongbo.zhang@linaro.org>
Reviewed-by: Radoslaw Biernacki <radoslaw.biernacki@linaro.org>
Tested-by: Radoslaw Biernacki <radoslaw.biernacki@linaro.org>
Change-Id: Ic63f38abf16ed3c36aa60e80d50103cf05cf797b
diff --git a/plat/qemu/qemu_gicv3.c b/plat/qemu/qemu_gicv3.c
new file mode 100644
index 0000000..28572c5
--- /dev/null
+++ b/plat/qemu/qemu_gicv3.c
@@ -0,0 +1,46 @@
+/*
+ * 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());
+}