34 lines
1.1 KiB
C
34 lines
1.1 KiB
C
#ifndef _KERNEL_ARCH_x86_MSI_H
|
|
#define _KERNEL_ARCH_x86_MSI_H
|
|
|
|
#include <SupportDefs.h>
|
|
|
|
// address register
|
|
#define MSI_ADDRESS_BASE 0xfee00000
|
|
#define MSI_DESTINATION_ID_SHIFT 12
|
|
#define MSI_REDIRECTION 0x00000008
|
|
#define MSI_NO_REDIRECTION 0x00000000
|
|
#define MSI_DESTINATION_MODE_LOGICAL 0x00000004
|
|
#define MSI_DESTINATION_MODE_PHYSICAL 0x00000000
|
|
|
|
// data register
|
|
#define MSI_TRIGGER_MODE_EDGE 0x00000000
|
|
#define MSI_TRIGGER_MODE_LEVEL 0x00008000
|
|
#define MSI_LEVEL_DEASSERT 0x00000000
|
|
#define MSI_LEVEL_ASSERT 0x00004000
|
|
#define MSI_DELIVERY_MODE_FIXED 0x00000000
|
|
#define MSI_DELIVERY_MODE_LOWEST_PRIO 0x00000100
|
|
#define MSI_DELIVERY_MODE_SMI 0x00000200
|
|
#define MSI_DELIVERY_MODE_NMI 0x00000400
|
|
#define MSI_DELIVERY_MODE_INIT 0x00000500
|
|
#define MSI_DELIVERY_MODE_EXT_INT 0x00000700
|
|
|
|
|
|
bool msi_supported();
|
|
status_t msi_allocate_vectors(uint8 count, uint8 *startVector,
|
|
uint64 *address, uint16 *data);
|
|
void msi_free_vectors(uint8 count, uint8 startVector);
|
|
void msi_assign_interrupt_to_cpu(uint8 irq, int32 cpu);
|
|
|
|
#endif // _KERNEL_ARCH_x86_MSI_H
|