DragonOS-Community/DragonOS
4
1
Fork 0
mirror of https://github.com/DragonOS-Community/DragonOS.git synced 2025-06-18 08:06:32 +00:00
Code Issues Releases Wiki Activity

new: msix中断

Browse Source
This commit is contained in:
fslongjin
2022-08-23 21:10:48 +08:00
parent 554b73ec99
commit ff94280f77
6 changed files with 176 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
kernel/driver/pci/pci.h
View File

@ -19,6 +19,13 @@ void pci_init();
struct pci_device_structure_header_t
{
struct List list;
// 包含msix table地址的bar的mmio基地址
uint64_t msix_mmio_vaddr;
uint64_t msix_mmio_size; // msix映射长度
uint32_t msix_offset; // msix表的offset
uint16_t msix_table_size; // msix表的表项数量
// ==== 以下三个变量表示该结构体所处的位置
uint8_t bus;
uint8_t device;
@ -43,7 +50,7 @@ struct pci_device_structure_header_t
// | bit7 | bit6 | Bits 5-4 | Bits 3-0 |
// | BIST Capable | Start BIST | Reserved | Completion Code |
// for more details, please visit https://wiki.osdev.org/PCI
} __attribute__((packed));
};
/**
* @brief 表头类型为0x0的pci设备结构
@ -215,4 +222,4 @@ void pci_get_device_structure(uint8_t class_code, uint8_t sub_class, struct pci_
* @param cap_type c要寻找的capability类型
* @return uint64_t cap list的偏移量
*/
uint32_t pci_enumerate_capability_list(struct pci_device_structure_header_t *pci_dev, int cap_type);
int32_t pci_enumerate_capability_list(struct pci_device_structure_header_t *pci_dev, uint32_t cap_type);