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

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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>
This commit is contained in:
Cyrill Gorcunov 2008-06-07 19:53:56 +04:00 committed by Ingo Molnar
parent d788bada2f
commit d3f020d2f9
1 changed files with 9 additions and 0 deletions
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9
include/asm-x86/io_apic.h
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@ -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:
*/