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| author | Song Gao <gaosong@loongson.cn> | 2023-04-06 15:25:28 +0800 |
|---|---|---|
| committer | Song Gao <gaosong@loongson.cn> | 2023-05-15 19:09:33 +0800 |
| commit | 646c39b220f789158313fee5d207f370e29c586a (patch) | |
| tree | 9c46867ad4f65aa45a301f402f323fb126ddeaae /include/hw | |
| parent | 78464f023b5407c636239de43cef864d76098009 (diff) | |
| download | qemu-646c39b220f789158313fee5d207f370e29c586a.zip qemu-646c39b220f789158313fee5d207f370e29c586a.tar.gz qemu-646c39b220f789158313fee5d207f370e29c586a.tar.bz2 | |
hw/loongarch/virt: Set max 256 cpus support on loongarch virt machine
Add separate macro EXTIOI_CPUS for extioi interrupt controller, extioi
only supports 4 cpu. And set macro LOONGARCH_MAX_CPUS as 256 so that
loongarch virt machine supports more cpus.
Interrupts from external devices can only be routed cpu 0-3 because
of extioi limits, cpu internal interrupt such as timer/ipi can be
triggered on all cpus.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230512100421.1867848-3-gaosong@loongson.cn>
Diffstat (limited to 'include/hw')
| -rw-r--r-- | include/hw/intc/loongarch_extioi.h | 10 | ||||
| -rw-r--r-- | include/hw/loongarch/virt.h | 2 |
2 files changed, 7 insertions, 5 deletions
diff --git a/include/hw/intc/loongarch_extioi.h b/include/hw/intc/loongarch_extioi.h index 15b8c99..fbdef9a 100644 --- a/include/hw/intc/loongarch_extioi.h +++ b/include/hw/intc/loongarch_extioi.h @@ -14,6 +14,8 @@ #define LS3A_INTC_IP 8 #define EXTIOI_IRQS (256) #define EXTIOI_IRQS_BITMAP_SIZE (256 / 8) +/* irq from EXTIOI is routed to no more than 4 cpus */ +#define EXTIOI_CPUS (4) /* map to ipnum per 32 irqs */ #define EXTIOI_IRQS_IPMAP_SIZE (256 / 32) #define EXTIOI_IRQS_COREMAP_SIZE 256 @@ -46,17 +48,17 @@ struct LoongArchExtIOI { uint32_t nodetype[EXTIOI_IRQS_NODETYPE_COUNT / 2]; uint32_t bounce[EXTIOI_IRQS_GROUP_COUNT]; uint32_t isr[EXTIOI_IRQS / 32]; - uint32_t coreisr[LOONGARCH_MAX_VCPUS][EXTIOI_IRQS_GROUP_COUNT]; + uint32_t coreisr[EXTIOI_CPUS][EXTIOI_IRQS_GROUP_COUNT]; uint32_t enable[EXTIOI_IRQS / 32]; uint32_t ipmap[EXTIOI_IRQS_IPMAP_SIZE / 4]; uint32_t coremap[EXTIOI_IRQS / 4]; uint32_t sw_pending[EXTIOI_IRQS / 32]; - DECLARE_BITMAP(sw_isr[LOONGARCH_MAX_VCPUS][LS3A_INTC_IP], EXTIOI_IRQS); + DECLARE_BITMAP(sw_isr[EXTIOI_CPUS][LS3A_INTC_IP], EXTIOI_IRQS); uint8_t sw_ipmap[EXTIOI_IRQS_IPMAP_SIZE]; uint8_t sw_coremap[EXTIOI_IRQS]; - qemu_irq parent_irq[LOONGARCH_MAX_VCPUS][LS3A_INTC_IP]; + qemu_irq parent_irq[EXTIOI_CPUS][LS3A_INTC_IP]; qemu_irq irq[EXTIOI_IRQS]; - MemoryRegion extioi_iocsr_mem[LOONGARCH_MAX_VCPUS]; + MemoryRegion extioi_iocsr_mem[EXTIOI_CPUS]; MemoryRegion extioi_system_mem; }; #endif /* LOONGARCH_EXTIOI_H */ diff --git a/include/hw/loongarch/virt.h b/include/hw/loongarch/virt.h index 54a9f59..f165965 100644 --- a/include/hw/loongarch/virt.h +++ b/include/hw/loongarch/virt.h @@ -14,7 +14,7 @@ #include "hw/intc/loongarch_ipi.h" #include "hw/block/flash.h" -#define LOONGARCH_MAX_VCPUS 4 +#define LOONGARCH_MAX_CPUS 256 #define VIRT_ISA_IO_BASE 0x18000000UL #define VIRT_ISA_IO_SIZE 0x0004000 |