hw/loongarch/virt: rename PCH_PIC_IRQ_OFFSET with VIRT_GSI_BASE
In theory gsi base can start from 0 on loongarch virt machine, however gsi base is hard-coded in linux kernel loongarch system, else system fails to boot. This patch renames macro PCH_PIC_IRQ_OFFSET with VIRT_GSI_BASE, keeps value unchanged. GSI base is common concept in acpi spec and easy to understand. Signed-off-by: Bibo Mao <maobibo@loongson.cn> Reviewed-by: Song Gao <gaosong@loongson.cn> Message-Id: <20221228030719.991878-1-maobibo@loongson.cn> Signed-off-by: Song Gao <gaosong@loongson.cn>
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@ -271,7 +271,7 @@ static void build_pci_device_aml(Aml *scope, LoongArchMachineState *lams)
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.pio.size = VIRT_PCI_IO_SIZE,
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.ecam.base = VIRT_PCI_CFG_BASE,
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.ecam.size = VIRT_PCI_CFG_SIZE,
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.irq = PCH_PIC_IRQ_OFFSET + VIRT_DEVICE_IRQS,
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.irq = VIRT_GSI_BASE + VIRT_DEVICE_IRQS,
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.bus = lams->pci_bus,
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};
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@ -432,7 +432,7 @@ static DeviceState *create_acpi_ged(DeviceState *pch_pic, LoongArchMachineState
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sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, VIRT_GED_REG_ADDR);
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sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0,
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qdev_get_gpio_in(pch_pic, VIRT_SCI_IRQ - PCH_PIC_IRQ_OFFSET));
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qdev_get_gpio_in(pch_pic, VIRT_SCI_IRQ - VIRT_GSI_BASE));
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sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
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return dev;
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}
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@ -452,7 +452,7 @@ static DeviceState *create_platform_bus(DeviceState *pch_pic)
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sysbus = SYS_BUS_DEVICE(dev);
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for (i = 0; i < VIRT_PLATFORM_BUS_NUM_IRQS; i++) {
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irq = VIRT_PLATFORM_BUS_IRQ - PCH_PIC_IRQ_OFFSET + i;
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irq = VIRT_PLATFORM_BUS_IRQ - VIRT_GSI_BASE + i;
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sysbus_connect_irq(sysbus, i, qdev_get_gpio_in(pch_pic, irq));
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}
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@ -509,7 +509,7 @@ static void loongarch_devices_init(DeviceState *pch_pic, LoongArchMachineState *
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serial_mm_init(get_system_memory(), VIRT_UART_BASE, 0,
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qdev_get_gpio_in(pch_pic,
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VIRT_UART_IRQ - PCH_PIC_IRQ_OFFSET),
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VIRT_UART_IRQ - VIRT_GSI_BASE),
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115200, serial_hd(0), DEVICE_LITTLE_ENDIAN);
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fdt_add_uart_node(lams);
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@ -531,7 +531,7 @@ static void loongarch_devices_init(DeviceState *pch_pic, LoongArchMachineState *
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create_unimplemented_device("pci-dma-cfg", 0x1001041c, 0x4);
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sysbus_create_simple("ls7a_rtc", VIRT_RTC_REG_BASE,
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qdev_get_gpio_in(pch_pic,
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VIRT_RTC_IRQ - PCH_PIC_IRQ_OFFSET));
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VIRT_RTC_IRQ - VIRT_GSI_BASE));
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fdt_add_rtc_node(lams);
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pm_mem = g_new(MemoryRegion, 1);
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@ -26,24 +26,25 @@
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#define VIRT_PCH_MSI_ADDR_LOW 0x2FF00000UL
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/*
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* According to the kernel pch irq start from 64 offset
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* 0 ~ 16 irqs used for non-pci device while 16 ~ 64 irqs
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* used for pci device.
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* GSI_BASE is hard-coded with 64 in linux kernel, else kernel fails to boot
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* 0 - 15 GSI for ISA devices even if there is no ISA devices
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* 16 - 63 GSI for CPU devices such as timers/perf monitor etc
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* 64 - GSI for external devices
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*/
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#define VIRT_PCH_PIC_IRQ_NUM 32
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#define PCH_PIC_IRQ_OFFSET 64
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#define VIRT_GSI_BASE 64
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#define VIRT_DEVICE_IRQS 16
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#define VIRT_UART_IRQ (PCH_PIC_IRQ_OFFSET + 2)
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#define VIRT_UART_IRQ (VIRT_GSI_BASE + 2)
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#define VIRT_UART_BASE 0x1fe001e0
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#define VIRT_UART_SIZE 0X100
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#define VIRT_RTC_IRQ (PCH_PIC_IRQ_OFFSET + 3)
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#define VIRT_RTC_IRQ (VIRT_GSI_BASE + 3)
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#define VIRT_MISC_REG_BASE (VIRT_PCH_REG_BASE + 0x00080000)
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#define VIRT_RTC_REG_BASE (VIRT_MISC_REG_BASE + 0x00050100)
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#define VIRT_RTC_LEN 0x100
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#define VIRT_SCI_IRQ (PCH_PIC_IRQ_OFFSET + 4)
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#define VIRT_SCI_IRQ (VIRT_GSI_BASE + 4)
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#define VIRT_PLATFORM_BUS_BASEADDRESS 0x16000000
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#define VIRT_PLATFORM_BUS_SIZE 0x2000000
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#define VIRT_PLATFORM_BUS_NUM_IRQS 2
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#define VIRT_PLATFORM_BUS_IRQ 69
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#define VIRT_PLATFORM_BUS_IRQ (VIRT_GSI_BASE + 5)
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#endif
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