x86: Use EOI register in io-apic on intel platforms

Browse source

IO-APIC's in intel chipsets support EOI register starting from
IO-APIC version 2. Use that when ever we need to clear the
IO-APIC RTE's RemoteIRR bit explicitly.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Acked-by: Gary Hade <garyhade@us.ibm.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
LKML-Reference: <20091026230001.947855317@sbs-t61.sc.intel.com>
[ Marked use_eio_reg as __read_mostly, fixed small details ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>

...

This commit is contained in:

Suresh Siddha 2009-10-26 14:24:35 -08:00 • committed by Ingo Molnar

parent a5e74b8419

commit b3ec0a37a7

1 changed files with 54 additions and 27 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

81

arch/x86/kernel/apic/io_apic.c

View file