diff options
| author | Natalie Protasevich <Natalie.Protasevich@unisys.com> | 2005-06-23 03:08:22 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-23 12:45:09 -0400 |
| commit | ca05fea6db5259c6d62e517c41d448a4249175f4 (patch) | |
| tree | fae2369b5a38a7b01be366129b5dc3105acfacf6 /include/asm-i386/mach-summit | |
| parent | 7c1def1652c6c1a95eafca2991baace34afaed0f (diff) | |
[PATCH] Do not enforce unique IO_APIC_ID check for xAPIC systems (i386)
This patch is per Andi's request to remove NO_IOAPIC_CHECK from genapic and
use heuristics to prevent unique I/O APIC ID check for systems that don't
need it. The patch disables unique I/O APIC ID check for Xeon-based and
other platforms that don't use serial APIC bus for interrupt delivery.
Andi stated that AMD systems don't need unique IO_APIC_IDs either.
Signed-off-by: Natalie Protasevich <Natalie.Protasevich@unisys.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-i386/mach-summit')
| -rw-r--r-- | include/asm-i386/mach-summit/mach_apic.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/include/asm-i386/mach-summit/mach_apic.h b/include/asm-i386/mach-summit/mach_apic.h index 74e9cbc8c01b..3d6d12937e1f 100644 --- a/include/asm-i386/mach-summit/mach_apic.h +++ b/include/asm-i386/mach-summit/mach_apic.h | |||
| @@ -7,8 +7,6 @@ | |||
| 7 | #define esr_disable (1) | 7 | #define esr_disable (1) |
| 8 | #define NO_BALANCE_IRQ (0) | 8 | #define NO_BALANCE_IRQ (0) |
| 9 | 9 | ||
| 10 | #define NO_IOAPIC_CHECK (1) /* Don't check I/O APIC ID for xAPIC */ | ||
| 11 | |||
| 12 | /* In clustered mode, the high nibble of APIC ID is a cluster number. | 10 | /* In clustered mode, the high nibble of APIC ID is a cluster number. |
| 13 | * The low nibble is a 4-bit bitmap. */ | 11 | * The low nibble is a 4-bit bitmap. */ |
| 14 | #define XAPIC_DEST_CPUS_SHIFT 4 | 12 | #define XAPIC_DEST_CPUS_SHIFT 4 |