diff options
| author | Xiantao Zhang <xiantao.zhang@intel.com> | 2009-02-16 10:14:48 +0300 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2009-03-24 12:03:12 +0300 |
| commit | 2fa8937f3af8873e006ce324e7b2d3f9b2077b87 (patch) | |
| tree | ba1554042de5724443f696e3ccd8ae804a9260d5 /arch/ia64/include | |
| parent | 4a906e49f103c2e544148a209ba1db316510799f (diff) | |
| download | linux-2fa8937f3af8873e006ce324e7b2d3f9b2077b87.tar.xz | |
ia64: Move the macro definitions related to MSI to one header file.
For kvm's MSI support, it needs these macros defined in ia64_msi.c, and
to avoid duplicate them, move them to one header file and share with
kvm.
Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/ia64/include')
| -rw-r--r-- | arch/ia64/include/asm/msidef.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/msidef.h b/arch/ia64/include/asm/msidef.h new file mode 100644 index 000000000000..592c1047a0c5 --- /dev/null +++ b/arch/ia64/include/asm/msidef.h @@ -0,0 +1,42 @@ +#ifndef _IA64_MSI_DEF_H +#define _IA64_MSI_DEF_H + +/* + * Shifts for APIC-based data + */ + +#define MSI_DATA_VECTOR_SHIFT 0 +#define MSI_DATA_VECTOR(v) (((u8)v) << MSI_DATA_VECTOR_SHIFT) +#define MSI_DATA_VECTOR_MASK 0xffffff00 + +#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 APIC-based bus address + */ + +#define MSI_ADDR_DEST_ID_SHIFT 4 +#define MSI_ADDR_HEADER 0xfee00000 + +#define MSI_ADDR_DEST_ID_MASK 0xfff0000f +#define MSI_ADDR_DEST_ID_CPU(cpu) ((cpu) << MSI_ADDR_DEST_ID_SHIFT) + +#define MSI_ADDR_DEST_MODE_SHIFT 2 +#define MSI_ADDR_DEST_MODE_PHYS (0 << MSI_ADDR_DEST_MODE_SHIFT) +#define MSI_ADDR_DEST_MODE_LOGIC (1 << MSI_ADDR_DEST_MODE_SHIFT) + +#define MSI_ADDR_REDIRECTION_SHIFT 3 +#define MSI_ADDR_REDIRECTION_CPU (0 << MSI_ADDR_REDIRECTION_SHIFT) +#define MSI_ADDR_REDIRECTION_LOWPRI (1 << MSI_ADDR_REDIRECTION_SHIFT) + +#endif/* _IA64_MSI_DEF_H */ |