arch/loongarch/include/asm/kvm_pch_pic.h

Source file repositories/reference/linux-study-clean/arch/loongarch/include/asm/kvm_pch_pic.h

File Facts

System
Linux kernel
Corpus path
arch/loongarch/include/asm/kvm_pch_pic.h
Extension
.h
Size
2352 bytes
Lines
77
Domain
Architecture Layer
Bucket
arch/loongarch
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

struct loongarch_pch_pic {
	spinlock_t lock;
	struct kvm *kvm;
	struct kvm_io_device device;
	union pch_pic_id id;
	uint64_t mask; /* 1:disable irq, 0:enable irq */
	uint64_t htmsi_en; /* 1:msi */
	uint64_t edge; /* 1:edge triggered, 0:level triggered */
	uint64_t auto_ctrl0; /* only use default value 00b */
	uint64_t auto_ctrl1; /* only use default value 00b */
	uint64_t last_intirr; /* edge detection */
	uint64_t irr; /* interrupt request register */
	uint64_t isr; /* interrupt service register */
	uint64_t polarity; /* 0: high level trigger, 1: low level trigger */
	uint8_t  route_entry[64]; /* default value 0, route to int0: eiointc */
	uint8_t  htmsi_vector[64]; /* irq route table for routing to eiointc */
	uint64_t pch_pic_base;
};

struct kvm_kernel_irq_routing_entry;
int kvm_loongarch_register_pch_pic_device(void);
void pch_pic_set_irq(struct loongarch_pch_pic *s, int irq, int level);
int pch_msi_set_irq(struct kvm *kvm, struct kvm_kernel_irq_routing_entry *e, int level);

#endif /* __ASM_KVM_PCH_PIC_H */

Annotation

Implementation Notes