diff options
Diffstat (limited to 'abs/core/kernel26.orig/coretemp.patch')
| -rw-r--r-- | abs/core/kernel26.orig/coretemp.patch | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/abs/core/kernel26.orig/coretemp.patch b/abs/core/kernel26.orig/coretemp.patch new file mode 100644 index 0000000..07ce434 --- /dev/null +++ b/abs/core/kernel26.orig/coretemp.patch @@ -0,0 +1,86 @@ +diff -ubr orig/linux-2.6.28/Documentation/hwmon/coretemp linux-2.6.28/Documentation/hwmon/coretemp +--- orig/linux-2.6.28/Documentation/hwmon/coretemp 2008-12-25 00:26:37.000000000 +0100 ++++ linux-2.6.28/Documentation/hwmon/coretemp 2009-07-18 07:29:37.000000000 +0200 +@@ -4,7 +4,7 @@ + Supported chips: + * All Intel Core family + Prefix: 'coretemp' +- CPUID: family 0x6, models 0xe, 0xf, 0x16, 0x17 ++ CPUID: family 0x6, models 0xe, 0xf, 0x16, 0x17, 0x1c + Datasheet: Intel 64 and IA-32 Architectures Software Developer's Manual + Volume 3A: System Programming Guide + http://softwarecommunity.intel.com/Wiki/Mobility/720.htm +@@ -14,10 +14,11 @@ + Description + ----------- + +-This driver permits reading temperature sensor embedded inside Intel Core CPU. +-Temperature is measured in degrees Celsius and measurement resolution is +-1 degree C. Valid temperatures are from 0 to TjMax degrees C, because +-the actual value of temperature register is in fact a delta from TjMax. ++This driver permits reading temperature sensor embedded inside Intel ++Core and Intel Atom CPUs. Temperature is measured in degrees Celsius ++and measurement resolution is 1 degree C. Valid temperatures are from 0 ++to TjMax degrees C, because the actual value of temperature register is ++in fact a delta from TjMax. + + Temperature known as TjMax is the maximum junction temperature of processor. + Intel defines this temperature as 85C or 100C. At this temperature, protection +@@ -35,4 +36,5 @@ + + The TjMax temperature is set to 85 degrees C if undocumented model specific + register (UMSR) 0xee has bit 30 set. If not the TjMax is 100 degrees C as +-(sometimes) documented in processor datasheet. ++(sometimes) documented in processor datasheet. The Intel Atom has TjMax 95C ++as per the specification. +diff -ubr orig/linux-2.6.28/drivers/hwmon/coretemp.c linux-2.6.28/drivers/hwmon/coretemp.c +--- orig/linux-2.6.28/drivers/hwmon/coretemp.c 2008-12-25 00:26:37.000000000 +0100 ++++ linux-2.6.28/drivers/hwmon/coretemp.c 2009-07-18 08:12:16.000000000 +0200 +@@ -1,7 +1,7 @@ + /* + * coretemp.c - Linux kernel module for hardware monitoring + * +- * Copyright (C) 2007 Rudolf Marek <r.marek@assembler.cz> ++ * Copyright (C) 2007, 2008 Rudolf Marek <r.marek@assembler.cz> + * + * Inspired from many hwmon drivers + * +@@ -244,8 +244,14 @@ + } + } + ++ /* Intel Atom has only fixed TjMax at 95C */ ++ ++ if (c->x86_model == 0x1c) { ++ data->tjmax = 95000; ++ } else { ++ /* Adjust the TjMax for the rest of Core2 family */ + data->tjmax = adjust_tjmax(c, data->id, &pdev->dev); +- platform_set_drvdata(pdev, data); ++ } + + /* read the still undocumented IA32_TEMPERATURE_TARGET it exists + on older CPUs but not in this register */ +@@ -265,6 +271,8 @@ + } + } + ++ platform_set_drvdata(pdev, data); ++ + if ((err = sysfs_create_group(&pdev->dev.kobj, &coretemp_group))) + goto exit_dev; + +@@ -413,11 +421,11 @@ + for_each_online_cpu(i) { + struct cpuinfo_x86 *c = &cpu_data(i); + +- /* check if family 6, models 0xe, 0xf, 0x16, 0x17, 0x1A */ ++ /* check if family 6, models 0xe, 0xf, 0x16, 0x17, 0x1A, 0x1C */ + if ((c->cpuid_level < 0) || (c->x86 != 0x6) || + !((c->x86_model == 0xe) || (c->x86_model == 0xf) || + (c->x86_model == 0x16) || (c->x86_model == 0x17) || +- (c->x86_model == 0x1A))) { ++ (c->x86_model == 0x1A) || (c->x86_model == 0x1C))) { + + /* supported CPU not found, but report the unknown + family 6 CPU */ |