irqchip/gic-phytium-2500: Add support for GIC of Phytium S2500

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I41AUQ
CVE: NA

-------------------------------------------------

Phytium S2500 adjusts the GIC's implementation to support multi-socket
system designs. This patch adds the driver of this new implementation
while keeping the kernel binary compatible with other ARM servers
in the ecosystem.
Signed-off-by: NWang Yinfeng <wangyinfeng@phytium.com.cn>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
Reviewed-by: NXiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

arch/arm64/Kconfig.platforms

@@ -199,6 +199,12 @@ config ARCH_MXC
 	  This enables support for the ARMv8 based SoCs in the
 	  NXP i.MX family.
 
+config ARCH_PHYTIUM
+    bool "Phytium SoC Family"
+    help
+      This enables support for Phytium ARMv8 SoC family.
+    select ARM_GIC_PHYTIUM_2500
+
 config ARCH_QCOM
 	bool "Qualcomm Platforms"
 	select GPIOLIB

drivers/irqchip/Kconfig

@@ -56,6 +56,15 @@ config ARM_GIC_V3_ITS_FSL_MC
 	depends on FSL_MC_BUS
 	default ARM_GIC_V3_ITS
 
+config ARM_GIC_PHYTIUM_2500
+    bool
+    select IRQ_DOMAIN
+    select GENERIC_IRQ_MULTI_HANDLER
+    select IRQ_DOMAIN_HIERARCHY
+    select PARTITION_PERCPU
+    select GENERIC_IRQ_EFFECTIVE_AFF_MASK
+    select GENERIC_MSI_IRQ_DOMAIN
+
 config ARM_NVIC
 	bool
 	select IRQ_DOMAIN_HIERARCHY

drivers/irqchip/Makefile

@@ -34,6 +34,7 @@ obj-$(CONFIG_ARM_GIC_V3)		+= irq-gic-v3.o irq-gic-v3-mbi.o irq-gic-common.o
 obj-$(CONFIG_ARM_GIC_V3_ITS)		+= irq-gic-v3-its.o irq-gic-v3-its-platform-msi.o irq-gic-v4.o
 obj-$(CONFIG_ARM_GIC_V3_ITS_PCI)	+= irq-gic-v3-its-pci-msi.o
 obj-$(CONFIG_ARM_GIC_V3_ITS_FSL_MC)	+= irq-gic-v3-its-fsl-mc-msi.o
+obj-$(CONFIG_ARM_GIC_PHYTIUM_2500) += irq-gic-phytium-2500.o irq-gic-phytium-2500-its.o
 obj-$(CONFIG_PARTITION_PERCPU)		+= irq-partition-percpu.o
 obj-$(CONFIG_HISILICON_IRQ_MBIGEN)	+= irq-mbigen.o
 obj-$(CONFIG_ARM_NVIC)			+= irq-nvic.o

include/acpi/actbl2.h

@@ -518,7 +518,8 @@ enum acpi_madt_type {
 	ACPI_MADT_TYPE_GENERIC_MSI_FRAME = 13,
 	ACPI_MADT_TYPE_GENERIC_REDISTRIBUTOR = 14,
 	ACPI_MADT_TYPE_GENERIC_TRANSLATOR = 15,
-	ACPI_MADT_TYPE_RESERVED = 16	/* 16 and greater are reserved */
+	ACPI_MADT_TYPE_RESERVED = 16,	/* 16 and greater are reserved */
+    ACPI_MADT_TYPE_PHYTIUM_2500 = 128
 };
 
 /*