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Added kernel patch to support temp readings for some atom processors.

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This modifies the coretemp kernel modul and adds support for newer
intel atom processors temp modules.
This commit is contained in:
Christian Schmidt
2010-02-07 18:28:08 +01:00
parent e803f8dd2e
commit cfa7d74f9d
2 changed files with 61 additions and 0 deletions
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3
lfs/linux
View File

@@ -147,6 +147,9 @@ endif
# ipp2p 0.8.2-pomng
cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-2.6.27.19-ipp2p-0.8.2-pomng.patch
# Intel Atom Coretemp Patch
cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-2.6.27-atom-coretemp.patch
# Layer7-patch
cd $(DIR_SRC) && rm -rf $(DIR_SRC)/netfilter-layer7-v2.21
cd $(DIR_SRC) && tar xzf $(DIR_DL)/netfilter-layer7-v2.21.tar.gz

58
src/patches/linux-2.6.27-atom-coretemp.patch Normal file
View File

@@ -0,0 +1,58 @@
diff -Naur linux-2.6.27.42.org/drivers/hwmon/coretemp.c linux-2.6.27.42/drivers/hwmon/coretemp.c
--- linux-2.6.27.42.org/drivers/hwmon/coretemp.c 2009-12-18 22:31:34.000000000 +0100
+++ linux-2.6.27.42/drivers/hwmon/coretemp.c 2010-02-07 12:36:39.000000000 +0100
@@ -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 @@
}
}
- data->tjmax = adjust_tjmax(c, data->id, &pdev->dev);
- platform_set_drvdata(pdev, data);
+ /* 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);
+ }
/* 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;
@@ -409,15 +417,15 @@
err = platform_driver_register(&coretemp_driver);
if (err)
goto exit;
-
+
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 == 0x16) || (c->x86_model == 0x17) ||
+ (c->x86_model == 0x1c) || (c->x86_model == 0x1A))) {
/* supported CPU not found, but report the unknown
family 6 CPU */