1 files changed, 55 insertions, 0 deletions

diff --git a/arch/x86/include/asm/msidef.h b/arch/x86/include/asm/msidef.h
new file mode 100644
index 000000000000..ed9190246876
--- /dev/null
+++ b/arch/x86/include/asm/msidef.h
@@ -0,0 +1,55 @@
+#ifndef ASM_X86__MSIDEF_H
+#define ASM_X86__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)
+
+#define MSI_ADDR_IR_EXT_INT             (1 << 4)
+#define MSI_ADDR_IR_SHV                 (1 << 3)
+#define MSI_ADDR_IR_INDEX1(index)       ((index & 0x8000) >> 13)
+#define MSI_ADDR_IR_INDEX2(index)       ((index & 0x7fff) << 5)
+#endif /* ASM_X86__MSIDEF_H */