This is a note to let you know that I've just added the patch titled
[CPUFREQ] Fix _OSC UUID in pcc-cpufreq
to the 2.6.39-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
fix-_osc-uuid-in-pcc-cpufreq.patch
and it can be found in the queue-2.6.39 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 904cc1e637a00dba1b58e7752f485f90ebf2a568 Mon Sep 17 00:00:00 2001
From: Naga Chumbalkar <[email protected]>
Date: Tue, 26 Apr 2011 17:05:18 +0000
Subject: [CPUFREQ] Fix _OSC UUID in pcc-cpufreq
From: Naga Chumbalkar <[email protected]>
commit 904cc1e637a00dba1b58e7752f485f90ebf2a568 upstream.
UUID needs to be written out the way it is described in
Sec 18.5.124 of ACPI 4.0a Specification.
Platform firmware's use of this UUID/_OSC is optional, which is
why we didn't notice this bug earlier.
Signed-off-by: Naga Chumbalkar <[email protected]>
Signed-off-by: Dave Jones <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/x86/kernel/cpu/cpufreq/pcc-cpufreq.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/x86/kernel/cpu/cpufreq/pcc-cpufreq.c
+++ b/arch/x86/kernel/cpu/cpufreq/pcc-cpufreq.c
@@ -39,7 +39,7 @@
#include <acpi/processor.h>
-#define PCC_VERSION "1.00.00"
+#define PCC_VERSION "1.10.00"
#define POLL_LOOPS 300
#define CMD_COMPLETE 0x1
@@ -102,7 +102,7 @@ static struct acpi_generic_address doorb
static u64 doorbell_preserve;
static u64 doorbell_write;
-static u8 OSC_UUID[16] = {0x63, 0x9B, 0x2C, 0x9F, 0x70, 0x91, 0x49, 0x1f,
+static u8 OSC_UUID[16] = {0x9F, 0x2C, 0x9B, 0x63, 0x91, 0x70, 0x1f, 0x49,
0xBB, 0x4F, 0xA5, 0x98, 0x2F, 0xA1, 0xB5, 0x46};
struct pcc_cpu {
Patches currently in stable-queue which might be from
[email protected] are
queue-2.6.39/fix-_osc-uuid-in-pcc-cpufreq.patch
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