diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-i386/msi.h | 7 | ||||
| -rw-r--r-- | include/asm-i386/msidef.h | 47 |
2 files changed, 49 insertions, 5 deletions
diff --git a/include/asm-i386/msi.h b/include/asm-i386/msi.h index b11c4b7dfaef..7368a89a0f42 100644 --- a/include/asm-i386/msi.h +++ b/include/asm-i386/msi.h @@ -9,14 +9,11 @@ #include <asm/desc.h> #include <mach_apic.h> -#define LAST_DEVICE_VECTOR (FIRST_SYSTEM_VECTOR - 1) -#define MSI_TARGET_CPU_SHIFT 12 - -extern struct msi_ops msi_apic_ops; +extern struct msi_ops arch_msi_ops; static inline int msi_arch_init(void) { - msi_register(&msi_apic_ops); + msi_register(&arch_msi_ops); return 0; } diff --git a/include/asm-i386/msidef.h b/include/asm-i386/msidef.h new file mode 100644 index 000000000000..5b8acddb70fb --- /dev/null +++ b/include/asm-i386/msidef.h @@ -0,0 +1,47 @@ +#ifndef ASM_MSIDEF_H +#define ASM_MSIDEF_H + +/* + * Constants for Intel APIC based MSI messages. + */ + +/* + * Shifts for MSI data + */ + +#define MSI_DATA_VECTOR_SHIFT 0 +#define MSI_DATA_VECTOR_MASK 0x000000ff +#define MSI_DATA_VECTOR(v) (((v) << MSI_DATA_VECTOR_SHIFT) & MSI_DATA_VECTOR_MASK) + +#define MSI_DATA_DELIVERY_MODE_SHIFT 8 +#define MSI_DATA_DELIVERY_FIXED (0 << MSI_DATA_DELIVERY_MODE_SHIFT) +#define MSI_DATA_DELIVERY_LOWPRI (1 << MSI_DATA_DELIVERY_MODE_SHIFT) + +#define MSI_DATA_LEVEL_SHIFT 14 +#define MSI_DATA_LEVEL_DEASSERT (0 << MSI_DATA_LEVEL_SHIFT) +#define MSI_DATA_LEVEL_ASSERT (1 << MSI_DATA_LEVEL_SHIFT) + +#define MSI_DATA_TRIGGER_SHIFT 15 +#define MSI_DATA_TRIGGER_EDGE (0 << MSI_DATA_TRIGGER_SHIFT) +#define MSI_DATA_TRIGGER_LEVEL (1 << MSI_DATA_TRIGGER_SHIFT) + +/* + * Shift/mask fields for msi address + */ + +#define MSI_ADDR_BASE_HI 0 +#define MSI_ADDR_BASE_LO 0xfee00000 + +#define MSI_ADDR_DEST_MODE_SHIFT 2 +#define MSI_ADDR_DEST_MODE_PHYSICAL (0 << MSI_ADDR_DEST_MODE_SHIFT) +#define MSI_ADDR_DEST_MODE_LOGICAL (1 << MSI_ADDR_DEST_MODE_SHIFT) + +#define MSI_ADDR_REDIRECTION_SHIFT 3 +#define MSI_ADDR_REDIRECTION_CPU (0 << MSI_ADDR_REDIRECTION_SHIFT) /* dedicated cpu */ +#define MSI_ADDR_REDIRECTION_LOWPRI (1 << MSI_ADDR_REDIRECTION_SHIFT) /* lowest priority */ + +#define MSI_ADDR_DEST_ID_SHIFT 12 +#define MSI_ADDR_DEST_ID_MASK 0x00ffff0 +#define MSI_ADDR_DEST_ID(dest) (((dest) << MSI_ADDR_DEST_ID_SHIFT) & MSI_ADDR_DEST_ID_MASK) + +#endif /* ASM_MSIDEF_H */ |