x86, io-apic: define names for redirection table entry fields

Each I/O APIC redirection table entry has a number of fields.
Define names for them to eliminate reference by hard coded
numbers.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 9 insertions, 0 deletions

diff --git a/include/asm-x86/io_apic.h b/include/asm-x86/io_apic.h
index a6732566ad05..dc0f55f2b034 100644
--- a/include/asm-x86/io_apic.h
+++ b/include/asm-x86/io_apic.h
@@ -11,6 +11,15 @@
  * Copyright (C) 1997, 1998, 1999, 2000 Ingo Molnar
  */
 
+/* I/O Unit Redirection Table */
+#define IO_APIC_REDIR_VECTOR_MASK       0x000FF
+#define IO_APIC_REDIR_DEST_LOGICAL      0x00800
+#define IO_APIC_REDIR_DEST_PHYSICAL     0x00000
+#define IO_APIC_REDIR_SEND_PENDING      (1 << 12)
+#define IO_APIC_REDIR_REMOTE_IRR        (1 << 14)
+#define IO_APIC_REDIR_LEVEL_TRIGGER     (1 << 15)
+#define IO_APIC_REDIR_MASKED            (1 << 16)
+
 /*
  * The structure of the IO-APIC:
  */