| commit | 91b84c89188eb1189e05581d7d4318f9445dd0b8 | |
| author | Shaohua Li <shaohua.li@intel.com> | |
| Tue, 19 May 2009 08:09:54 +0000 (19 16:09 +0800) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Mon, 15 Jun 2009 16:40:07 +0000 (15 09:40 -0700) | ||
| tree | d44cd6fc742cac5c3abc791c333b11fea007dc93 | treesnapshot (tar.gz zip) |
| parent | ab726ea2b8ceb78da2ed2e9fd6a60444f01e5d0d | commitdiff |
cpuidle: fix AMD C1E suspend hang
commit 7d60e8ab0d5507229dfbdf456501cc378610fa01 upstream.
When AMD C1E is enabled, local APIC timer will stop even in C1. To avoid
suspend/resume hang, this patch removes C1 and replace it with a cpu_relax() in
suspend/resume path. This hasn't any impact in runtime path.
http://bugzilla.kernel.org/show_bug.cgi?id=13233
[ impact: avoid suspend/resume hang in AMD CPU with C1E enabled ]
Tested-by: Dmitry Lyzhyn <thisistempbox@yahoo.com>
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
commit 7d60e8ab0d5507229dfbdf456501cc378610fa01 upstream.
When AMD C1E is enabled, local APIC timer will stop even in C1. To avoid
suspend/resume hang, this patch removes C1 and replace it with a cpu_relax() in
suspend/resume path. This hasn't any impact in runtime path.
http://bugzilla.kernel.org/show_bug.cgi?id=13233
[ impact: avoid suspend/resume hang in AMD CPU with C1E enabled ]
Tested-by: Dmitry Lyzhyn <thisistempbox@yahoo.com>
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| drivers/acpi/processor_idle.c | diffblobblamehistory |