Currently LoongArch and MIPS architectures share loongson_ipi, and modifications to loongson_ipi by the MIPS architecture may lead to some unknown problems in the LoongArch architecture. In order to minimize the impact of this inter-architectural interaction, we believe that it is necessary to restore loongarch_ipi.
Signed-off-by: Song Gao <gaos...@loongson.cn> --- MAINTAINERS | 2 -- include/hw/intc/loongarch_ipi.h | 54 +++++++++++++++++++++++++++++++++ include/hw/loongarch/virt.h | 2 +- hw/loongarch/virt.c | 4 +-- hw/intc/Kconfig | 3 ++ hw/intc/meson.build | 1 + hw/intc/trace-events | 3 ++ hw/loongarch/Kconfig | 2 +- 8 files changed, 65 insertions(+), 6 deletions(-) create mode 100644 include/hw/intc/loongarch_ipi.h diff --git a/MAINTAINERS b/MAINTAINERS index 19f67dc5d2..9d7575a7f1 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1246,9 +1246,7 @@ F: configs/devices/loongarch64-softmmu/default.mak F: hw/loongarch/ F: include/hw/loongarch/virt.h F: include/hw/intc/loongarch_*.h -F: include/hw/intc/loongson_ipi.h F: hw/intc/loongarch_*.c -F: hw/intc/loongson_ipi.c F: include/hw/pci-host/ls7a.h F: hw/rtc/ls7a_rtc.c F: gdb-xml/loongarch*.xml diff --git a/include/hw/intc/loongarch_ipi.h b/include/hw/intc/loongarch_ipi.h new file mode 100644 index 0000000000..1c1e834849 --- /dev/null +++ b/include/hw/intc/loongarch_ipi.h @@ -0,0 +1,54 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * LoongArch ipi interrupt header files + * + * Copyright (C) 2021 Loongson Technology Corporation Limited + */ + +#ifndef HW_LOONGARCH_IPI_H +#define HW_LOONGARCH_IPI_H + +#include "hw/sysbus.h" + +/* Mainy used by iocsr read and write */ +#define SMP_IPI_MAILBOX 0x1000ULL +#define CORE_STATUS_OFF 0x0 +#define CORE_EN_OFF 0x4 +#define CORE_SET_OFF 0x8 +#define CORE_CLEAR_OFF 0xc +#define CORE_BUF_20 0x20 +#define CORE_BUF_28 0x28 +#define CORE_BUF_30 0x30 +#define CORE_BUF_38 0x38 +#define IOCSR_IPI_SEND 0x40 +#define IOCSR_MAIL_SEND 0x48 +#define IOCSR_ANY_SEND 0x158 + +#define MAIL_SEND_ADDR (SMP_IPI_MAILBOX + IOCSR_MAIL_SEND) +#define MAIL_SEND_OFFSET 0 +#define ANY_SEND_OFFSET (IOCSR_ANY_SEND - IOCSR_MAIL_SEND) + +#define IPI_MBX_NUM 4 + +#define TYPE_LOONGARCH_IPI "loongarch_ipi" +OBJECT_DECLARE_SIMPLE_TYPE(LoongArchIPI, LOONGARCH_IPI) + +typedef struct IPICore { + uint32_t status; + uint32_t en; + uint32_t set; + uint32_t clear; + /* 64bit buf divide into 2 32bit buf */ + uint32_t buf[IPI_MBX_NUM * 2]; + qemu_irq irq; +} IPICore; + +struct LoongArchIPI { + SysBusDevice parent_obj; + MemoryRegion ipi_iocsr_mem; + MemoryRegion ipi64_iocsr_mem; + uint32_t num_cpu; + IPICore *cpu; +}; + +#endif diff --git a/include/hw/loongarch/virt.h b/include/hw/loongarch/virt.h index 8fdfacf268..fe92971de1 100644 --- a/include/hw/loongarch/virt.h +++ b/include/hw/loongarch/virt.h @@ -11,7 +11,7 @@ #include "target/loongarch/cpu.h" #include "hw/boards.h" #include "qemu/queue.h" -#include "hw/intc/loongson_ipi.h" +#include "hw/intc/loongarch_ipi.h" #include "hw/block/flash.h" #include "hw/loongarch/boot.h" diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c index 8be2d2ff6a..6bef2f1165 100644 --- a/hw/loongarch/virt.c +++ b/hw/loongarch/virt.c @@ -23,7 +23,7 @@ #include "net/net.h" #include "hw/loader.h" #include "elf.h" -#include "hw/intc/loongson_ipi.h" +#include "hw/intc/loongarch_ipi.h" #include "hw/intc/loongarch_extioi.h" #include "hw/intc/loongarch_pch_pic.h" #include "hw/intc/loongarch_pch_msi.h" @@ -788,7 +788,7 @@ static void virt_irq_init(LoongArchVirtMachineState *lvms) */ /* Create IPI device */ - ipi = qdev_new(TYPE_LOONGSON_IPI); + ipi = qdev_new(TYPE_LOONGARCH_IPI); qdev_prop_set_uint32(ipi, "num-cpu", ms->smp.cpus); sysbus_realize_and_unref(SYS_BUS_DEVICE(ipi), &error_fatal); diff --git a/hw/intc/Kconfig b/hw/intc/Kconfig index 58b6d3a710..576c04e4e4 100644 --- a/hw/intc/Kconfig +++ b/hw/intc/Kconfig @@ -87,6 +87,9 @@ config GOLDFISH_PIC config M68K_IRQC bool +config LOONGARCH_IPI + bool + config LOONGSON_IPI bool diff --git a/hw/intc/meson.build b/hw/intc/meson.build index afd1aa51ee..19b719c336 100644 --- a/hw/intc/meson.build +++ b/hw/intc/meson.build @@ -70,6 +70,7 @@ specific_ss.add(when: ['CONFIG_KVM', 'CONFIG_XIVE'], if_true: files('spapr_xive_kvm.c')) specific_ss.add(when: 'CONFIG_M68K_IRQC', if_true: files('m68k_irqc.c')) specific_ss.add(when: 'CONFIG_LOONGSON_IPI', if_true: files('loongson_ipi.c')) +specific_ss.add(when: 'CONFIG_LOONGARCH_IPI', if_true: files('loongarch_ipi.c')) specific_ss.add(when: 'CONFIG_LOONGARCH_PCH_PIC', if_true: files('loongarch_pch_pic.c')) specific_ss.add(when: 'CONFIG_LOONGARCH_PCH_MSI', if_true: files('loongarch_pch_msi.c')) specific_ss.add(when: 'CONFIG_LOONGARCH_EXTIOI', if_true: files('loongarch_extioi.c')) diff --git a/hw/intc/trace-events b/hw/intc/trace-events index 3dcf147198..4e42360a60 100644 --- a/hw/intc/trace-events +++ b/hw/intc/trace-events @@ -307,6 +307,9 @@ sh_intc_set(int id, int enable) "setting interrupt group %d to %d" # loongson_ipi.c loongson_ipi_read(unsigned size, uint64_t addr, uint64_t val) "size: %u addr: 0x%"PRIx64 "val: 0x%"PRIx64 loongson_ipi_write(unsigned size, uint64_t addr, uint64_t val) "size: %u addr: 0x%"PRIx64 "val: 0x%"PRIx64 +# loongarch_ipi.c +loongarch_ipi_read(unsigned size, uint64_t addr, uint64_t val) "size: %u addr: 0x%"PRIx64 "val: 0x%"PRIx64 +loongarch_ipi_write(unsigned size, uint64_t addr, uint64_t val) "size: %u addr: 0x%"PRIx64 "val: 0x%"PRIx64 # loongarch_pch_pic.c loongarch_pch_pic_irq_handler(int irq, int level) "irq %d level %d" loongarch_pch_pic_low_readw(unsigned size, uint64_t addr, uint64_t val) "size: %u addr: 0x%"PRIx64 "val: 0x%" PRIx64 diff --git a/hw/loongarch/Kconfig b/hw/loongarch/Kconfig index 90a0dba9d5..830cfef72d 100644 --- a/hw/loongarch/Kconfig +++ b/hw/loongarch/Kconfig @@ -11,7 +11,7 @@ config LOONGARCH_VIRT select SERIAL select VIRTIO_PCI select PLATFORM_BUS - select LOONGSON_IPI + select LOONGARCH_IPI select LOONGARCH_PCH_PIC select LOONGARCH_PCH_MSI select LOONGARCH_EXTIOI -- 2.34.1