.
thanks,
Len Brown, Intel Open Source Technology Center
ps. lots of people are mis-using acpi_osi= in debugging, please consult
Documentation/kernel-parameters.txt for a detailed description of how
this cmdline option works. Note, in particular, that acpi_osi=XYZ by itself
will _add_ XYZ to the list
From: Len Brown
In Linux-3.9 we removed the mwait_idle() loop:
'x86 idle: remove mwait_idle() and "idle=mwait" cmdline param'
(69fb3676df3329a7142803bb3502fa59dc0db2e3)
The reasoning was that modern machines should be sufficiently
happy during the boot process using the defa
imit
the CLFLUSH to C-states deeper than C1E, and let me know what you see.
- if (this_cpu_has(X86_FEATURE_CLFLUSH_MONITOR))
+ if ((eax > 1) && this_cpu_has(X86_FEATURE_CLFLUSH_MONITOR))
clflush((void *)¤t_thread_info()->flags);
thanks,
Len Brown, Intel Open Source Techn
1.07%) 1537.33 (-30.30%)
>> Mean 24 2162.33 ( 0.00%) 2168.67 ( 0.29%) 1535.33 (-29.00%)
>> Mean 28 2139.33 ( 0.00%) 2107.67 ( -1.48%) 1535.00 (-28.25%)
>> Mean 32 2084.67 ( 0.00%) 2089.00 ( 0.21%) 1537.33 (-26.26%)
>>
From: Len Brown
Linux 3.10 changed the timing of how thread_info->flags is touched:
x86: Use generic idle loop
(7d1a941731fabf27e5fb6edbebb79fe856edb4e5)
This caused Intel NHM-EX and WSM-EX servers to experience a large number
of immediate MONITOR/MWAIT break wakeups, wh
how_bug.cgi?id=45151
Signed-off-by: Feng Tang
Signed-off-by: Len Brown
cc: stable@vger.kernel.org
---
drivers/acpi/ec.c | 14 ++
1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 7edaccc..615264c 100644
--- a/drivers/acpi/ec.
From: Feng Tang
By enlarging the GPE storm threshold back to 20, that laptop's
EC works fine with interrupt mode instead of polling mode.
https://bugzilla.kernel.org/show_bug.cgi?id=45151
Reported-and-Tested-by: Francesco
Signed-off-by: Feng Tang
Signed-off-by: Len Brown
cc: s
From: Lin Ming
The _OSC method may exist in module level code,
so it must be called after ACPI_FULL_INITIALIZATION
On some new platforms with Zero-Power-Optical-Disk-Drive (ZPODD)
support, this fix is necessary to save power.
Signed-off-by: Lin Ming
Tested-by: Aaron Lu
Signed-off-by: Len
o register,
but ACPI driver's add() ops returns sucessfully.
The ACPI device will receive ACPI notification and cause OOPS.
https://bugzilla.redhat.com/show_bug.cgi?id=772730
Signed-off-by: Lan Tianyu
Cc: stable@vger.kernel.org
Signed-off-by: Len Brown
---
drivers/acpi/ac.c | 4 +++-
1
-by: Len Brown
---
drivers/acpi/acpi_pad.c | 7 ---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c
index a43fa1a..1502c502 100644
--- a/drivers/acpi/acpi_pad.c
+++ b/drivers/acpi/acpi_pad.c
@@ -36,6 +36,7 @@
#define
too much
error reporting in runtime.
Reported-by: Pawel Sikora
Signed-off-by: Huang Ying
Tested-by: Jean Delvare
Cc: stable@vger.kernel.org
Signed-off-by: Len Brown
---
drivers/acpi/apei/apei-base.c | 17 +++--
drivers/acpi/apei/apei-internal.h | 9 +
drivers/acpi
https://bugzilla.kernel.org/show_bug.cgi?id=43168
Cc: Igor Murzov
Cc: stable@vger.kernel.org
Signed-off-by: Zhang Rui
Signed-off-by: Len Brown
---
drivers/acpi/video.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 9577b6f..4134b30 100644
--- a/dr
applied.
thanks,
-Len Brown, Intel Open Source Technology Center
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Signed-off-by: Andy Whitcroft
Tested-by: Ralf Jung
Signed-off-by: Len Brown
---
drivers/acpi/battery.c | 10 +-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 86933ca..7dd3f9f 100644
--- a/drivers/acpi/battery.c
+++ b
during every calling.
Add pu_device calling before returning.
Signed-off-by: Yinghai Lu
Cc: stable@vger.kernel.org
Signed-off-by: Len Brown
---
drivers/pnp/pnpacpi/core.c |7 ++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi
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