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hw/loongarch/virt: Modify ipi as percpu device

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ipi is used to communicate between cpus, this patch modified
loongarch ipi device as percpu device, so that there are
2 MemoryRegions with ipi device, rather than 2*cpus
MemoryRegions, which may be large than QDEV_MAX_MMIO if
more cpus are added on loongarch virt machine.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230512100421.1867848-2-gaosong@loongson.cn>
This commit is contained in:
Song Gao 2023-04-06 14:57:27 +08:00
parent 7318c62215
commit 78464f023b
No known key found for this signature in database
GPG key ID: 40A2FFF239263EDF
4 changed files with 26 additions and 41 deletions
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10
include/hw/intc/loongarch_ipi.h
View file

@ -28,9 +28,6 @@
#define MAIL_SEND_OFFSET 0
#define ANY_SEND_OFFSET (IOCSR_ANY_SEND - IOCSR_MAIL_SEND)
#define MAX_IPI_CORE_NUM 4
#define MAX_IPI_MBX_NUM 4
#define TYPE_LOONGARCH_IPI "loongarch_ipi"
OBJECT_DECLARE_SIMPLE_TYPE(LoongArchIPI, LOONGARCH_IPI)
@ -40,14 +37,15 @@ typedef struct IPICore {
uint32_t set;
uint32_t clear;
/* 64bit buf divide into 2 32bit buf */
uint32_t buf[MAX_IPI_MBX_NUM * 2];
uint32_t buf[2];
qemu_irq irq;
} IPICore;
struct LoongArchIPI {
SysBusDevice parent_obj;
MemoryRegion ipi_iocsr_mem[MAX_IPI_CORE_NUM];
MemoryRegion ipi64_iocsr_mem[MAX_IPI_CORE_NUM];
MemoryRegion ipi_iocsr_mem;
MemoryRegion ipi64_iocsr_mem;
IPICore ipi_core;
};
#endif

1
include/hw/loongarch/virt.h
View file

@ -36,7 +36,6 @@ struct LoongArchMachineState {
/*< private >*/
MachineState parent_obj;
IPICore ipi_core[MAX_IPI_CORE_NUM];
MemoryRegion lowmem;
MemoryRegion highmem;
MemoryRegion isa_io;