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* hwmon: (coretemp) Delete an obsolete commentZhang Rui2023-04-191-4/+0
| | | | | | | | | | | | The refinement of tjmax value retrieved from MSR_IA32_TEMPERATURE_TARGET has been changed for several times. Now, the raw value from MSR is used without refinement. Thus remove the obsolete comment. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Link: https://lore.kernel.org/r/20230330103346.6044-2-rui.zhang@intel.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (coretemp) Delete tjmax debug messageZhang Rui2023-04-191-3/+1
| | | | | | | | | | | | | | | | | | | After commit c0c67f8761ce ("hwmon: (coretemp) Add support for dynamic tjmax"), tjmax value is retrieved from MSR every time the temperature is read. This means that, with debug message enabled, the tjmax debug message is printed out for every single temperature read for any CPU. This spams the syslog. Ideally, as tjmax is package scope unique, the debug message should show once when tjmax is changed for one package. But this requires inventing some new per-package data in the coretemp driver, and this is overkill. To keep the code simple, delete the tjmax debug message. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Link: https://lore.kernel.org/r/20230330103346.6044-1-rui.zhang@intel.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (coretemp) Simplify platform device handlingRobin Murphy2023-02-031-70/+58
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Coretemp's platform driver is unconventional. All the real work is done globally by the initcall and CPU hotplug notifiers, while the "driver" effectively just wraps an allocation and the registration of the hwmon interface in a long-winded round-trip through the driver core. The whole logic of dynamically creating and destroying platform devices to bring the interfaces up and down is error prone, since it assumes platform_device_add() will synchronously bind the driver and set drvdata before it returns, thus results in a NULL dereference if drivers_autoprobe is turned off for the platform bus. Furthermore, the unusual approach of doing that from within a CPU hotplug notifier, already commented in the code that it deadlocks suspend, also causes lockdep issues for other drivers or subsystems which may want to legitimately register a CPU hotplug notifier from a platform bus notifier. All of these issues can be solved by ripping this unusual behaviour out completely, simply tying the platform devices to the lifetime of the module itself, and directly managing the hwmon interfaces from the hotplug notifiers. There is a slight user-visible change in that /sys/bus/platform/drivers/coretemp will no longer appear, and /sys/devices/platform/coretemp.n will remain present if package n is hotplugged off, but hwmon users should really only be looking for the presence of the hwmon interfaces, whose behaviour remains unchanged. Link: https://lore.kernel.org/lkml/20220922101036.87457-1-janusz.krzysztofik@linux.intel.com/ Link: https://gitlab.freedesktop.org/drm/intel/issues/6641 Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com> Link: https://lore.kernel.org/r/20230103114620.15319-1-janusz.krzysztofik@linux.intel.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (coretemp) avoid RDMSR interrupts to isolated CPUsMarcelo Tosatti2023-02-031-0/+4
| | | | | | | | | | | | | | | | | | | The coretemp driver uses rdmsr_on_cpu calls to read MSR_IA32_PACKAGE_THERM_STATUS/MSR_IA32_THERM_STATUS registers, which contain information about current core temperature. For certain low latency applications, the RDMSR interruption exceeds the applications requirements. So do not create core files in sysfs, for CPUs which have isolation and nohz_full enabled. Temperature information from the housekeeping cores should be sufficient to infer die temperature. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Link: https://lore.kernel.org/r/Y5zT6B1mY9/pnwJV@tpad Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (coretemp) Add support for dynamic ttargetZhang Rui2022-12-041-16/+41
| | | | | | | | | | | | | Tjmax value retrieved from MSR_IA32_TEMPERATURE_TARGET can be changed at runtime when the Intel SST-PP (Intel Speed Select Technology - Performance Profile) level is changed. As a result, the ttarget value also becomes dyamic. Improve the code to always get updated ttarget value. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Link: https://lore.kernel.org/r/20221113153145.32696-4-rui.zhang@intel.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (coretemp) Add support for dynamic tjmaxZhang Rui2022-12-041-15/+31
| | | | | | | | | | | | | | | | Tjmax value retrieved from MSR_IA32_TEMPERATURE_TARGET can be changed at runtime when the Intel SST-PP (Intel Speed Select Technology - Performance Profile) level is changed. Improve the code to always use updated tjmax when it can be retrieved from MSR_IA32_TEMPERATURE_TARGET. When tjmax can not be retrieved from MSR_IA32_TEMPERATURE_TARGET, still follow the previous logic and always use a static tjmax value. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Link: https://lore.kernel.org/r/20221113153145.32696-3-rui.zhang@intel.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (coretemp) rearrange tjmax handing codeZhang Rui2022-12-041-78/+78
| | | | | | | | | | | Rearrange the tjmax handling code so that it can be used directly in the sysfs attribute callbacks without forward declarations. No functional change in this patch. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Link: https://lore.kernel.org/r/20221113153145.32696-2-rui.zhang@intel.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (coretemp) Remove obsolete temp_data->validZhang Rui2022-12-041-4/+1
| | | | | | | | | | | | | Checking for the valid bit of IA32_THERM_STATUS is removed in commit bf6ea084ebb5 ("hwmon: (coretemp) Do not return -EAGAIN for low temperatures"), and temp_data->valid is set and never cleared when the temperature has been read once. Remove the obsolete temp_data->valid field. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Link: https://lore.kernel.org/r/20221108075051.5139-2-rui.zhang@intel.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (coretemp) fix pci device refcount leak in nv1a_ram_new()Yang Yingliang2022-12-011-1/+4
| | | | | | | | | | | | As comment of pci_get_domain_bus_and_slot() says, it returns a pci device with refcount increment, when finish using it, the caller must decrement the reference count by calling pci_dev_put(). So call it after using to avoid refcount leak. Fixes: 14513ee696a0 ("hwmon: (coretemp) Use PCI host bridge ID to identify CPU if necessary") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20221118093303.214163-1-yangyingliang@huawei.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (coretemp) Check for null before removing sysfs attrsPhil Auld2022-12-011-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If coretemp_add_core() gets an error then pdata->core_data[indx] is already NULL and has been kfreed. Don't pass that to sysfs_remove_group() as that will crash in sysfs_remove_group(). [Shortened for readability] [91854.020159] sysfs: cannot create duplicate filename '/devices/platform/coretemp.0/hwmon/hwmon2/temp20_label' <cpu offline> [91855.126115] BUG: kernel NULL pointer dereference, address: 0000000000000188 [91855.165103] #PF: supervisor read access in kernel mode [91855.194506] #PF: error_code(0x0000) - not-present page [91855.224445] PGD 0 P4D 0 [91855.238508] Oops: 0000 [#1] PREEMPT SMP PTI ... [91855.342716] RIP: 0010:sysfs_remove_group+0xc/0x80 ... [91855.796571] Call Trace: [91855.810524] coretemp_cpu_offline+0x12b/0x1dd [coretemp] [91855.841738] ? coretemp_cpu_online+0x180/0x180 [coretemp] [91855.871107] cpuhp_invoke_callback+0x105/0x4b0 [91855.893432] cpuhp_thread_fun+0x8e/0x150 ... Fix this by checking for NULL first. Signed-off-by: Phil Auld <pauld@redhat.com> Cc: linux-hwmon@vger.kernel.org Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Jean Delvare <jdelvare@suse.com> Cc: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20221117162313.3164803-1-pauld@redhat.com Fixes: 199e0de7f5df3 ("hwmon: (coretemp) Merge pkgtemp with coretemp") Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon/coretemp: Handle large core ID valueZhang Rui2022-10-171-15/+41
| | | | | | | | | | | | | | | | | | | The coretemp driver supports up to a hard-coded limit of 128 cores. Today, the driver can not support a core with an ID above that limit. Yet, the encoding of core ID's is arbitrary (BIOS APIC-ID) and so they may be sparse and they may be large. Update the driver to map arbitrary core ID numbers into appropriate array indexes so that 128 cores can be supported, no matter the encoding of core ID's. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Acked-by: Len Brown <len.brown@intel.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20221014090147.1836-3-rui.zhang@intel.com
* hwmon: cleanup non-bool "valid" data fieldsPaul Fertser2021-10-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have bool so use it consistently in all the drivers. The following Coccinelle script was used: @@ identifier T; type t = { char, int }; @@ struct T { ... - t valid; + bool valid; ... } @@ identifier v; @@ ( - v->valid = 0 + v->valid = false | - v->valid = 1 + v->valid = true ) followed by sed to fixup the comments: sed '/bool valid;/{s/!=0/true/;s/zero/false/}' Few whitespace changes were fixed manually. All modified drivers were compile-tested. Signed-off-by: Paul Fertser <fercerpav@gmail.com> Link: https://lore.kernel.org/r/20210924195202.27917-1-fercerpav@gmail.com [groeck: Fixed up 'u8 valid' to 'boool valid' in atxp1.c] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: Convert to new X86 CPU match macrosThomas Gleixner2020-03-241-1/+1
| | | | | | | | | | The new macro set has a consistent namespace and uses C99 initializers instead of the grufty C89 ones. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lkml.kernel.org/r/20200320131509.859324598@linutronix.de
* hwmon (coretemp) Fix a memory leak bugWenwen Wang2019-08-311-1/+2
| | | | | | | | | | | | In coretemp_init(), 'zone_devices' is allocated through kcalloc(). However, it is not deallocated in the following execution if platform_driver_register() fails, leading to a memory leak. To fix this issue, introduce the 'outzone' label to free 'zone_devices' before returning the error. Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu> Link: https://lore.kernel.org/r/1566248402-6538-1-git-send-email-wenwen@cs.uga.edu Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* Merge branch 'x86-topology-for-linus' of ↵Linus Torvalds2019-07-081-18/+18
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 topology updates from Ingo Molnar: "Implement multi-die topology support on Intel CPUs and expose the die topology to user-space tooling, by Len Brown, Kan Liang and Zhang Rui. These changes should have no effect on the kernel's existing understanding of topologies, i.e. there should be no behavioral impact on cache, NUMA, scheduler, perf and other topologies and overall system performance" * 'x86-topology-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel/rapl: Cosmetic rename internal variables in response to multi-die/pkg support perf/x86/intel/uncore: Cosmetic renames in response to multi-die/pkg support hwmon/coretemp: Cosmetic: Rename internal variables to zones from packages thermal/x86_pkg_temp_thermal: Cosmetic: Rename internal variables to zones from packages perf/x86/intel/cstate: Support multi-die/package perf/x86/intel/rapl: Support multi-die/package perf/x86/intel/uncore: Support multi-die/package topology: Create core_cpus and die_cpus sysfs attributes topology: Create package_cpus sysfs attribute hwmon/coretemp: Support multi-die/package powercap/intel_rapl: Update RAPL domain name and debug messages thermal/x86_pkg_temp_thermal: Support multi-die/package powercap/intel_rapl: Support multi-die/package powercap/intel_rapl: Simplify rapl_find_package() x86/topology: Define topology_logical_die_id() x86/topology: Define topology_die_id() cpu/topology: Export die_id x86/topology: Create topology_max_die_per_package() x86/topology: Add CPUID.1F multi-die/package support
| * hwmon/coretemp: Cosmetic: Rename internal variables to zones from packagesLen Brown2019-05-231-18/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Syntax update only -- no logical or functional change. In response to the new multi-die/package changes, update variable names to use the more generic thermal "zone" terminology, instead of "package", as the zones can refer to either packages or die. Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Zhang Rui <rui.zhang@intel.com> Link: https://lkml.kernel.org/r/facecfd3525d55c2051f63a7ec709aeb03cc1dc1.1557769318.git.len.brown@intel.com
| * hwmon/coretemp: Support multi-die/packageZhang Rui2019-05-231-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Package temperature sensors are actually implemented in hardware per-die. Update coretemp to be "die-aware", so it can expose mulitple sensors per package, instead of just one. No change to single-die/package systems. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@kernel.org> Acked-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: linux-pm@vger.kernel.org Cc: linux-hwmon@vger.kernel.org Link: https://lkml.kernel.org/r/ec2868f35113a01ff72d9041e0b97fc6a1c7df84.1557769318.git.len.brown@intel.com
* | treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 164Thomas Gleixner2019-05-301-14/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation version 2 of the license this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin street fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 12 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.745497013@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* hwmon: (coretemp) Replace S_<PERMS> with octal valuesGuenter Roeck2018-12-161-1/+1
| | | | | | | | | | | | | | Replace S_<PERMS> with octal values. The conversion was done automatically with coccinelle. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches/hwmon/. This patch does not introduce functional changes. It was verified by compiling the old and new files and comparing text and data sizes. Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* treewide: kzalloc() -> kcalloc()Kees Cook2018-06-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The kzalloc() function has a 2-factor argument form, kcalloc(). This patch replaces cases of: kzalloc(a * b, gfp) with: kcalloc(a * b, gfp) as well as handling cases of: kzalloc(a * b * c, gfp) with: kzalloc(array3_size(a, b, c), gfp) as it's slightly less ugly than: kzalloc_array(array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: kzalloc(4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( kzalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | kzalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( kzalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(char) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(u8) * COUNT + COUNT , ...) | kzalloc( - sizeof(__u8) * COUNT + COUNT , ...) | kzalloc( - sizeof(char) * COUNT + COUNT , ...) | kzalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - kzalloc + kcalloc ( - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ - kzalloc + kcalloc ( - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( kzalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( kzalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kzalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kzalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( kzalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( kzalloc(C1 * C2 * C3, ...) | kzalloc( - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | kzalloc( - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | kzalloc( - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | kzalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( kzalloc(sizeof(THING) * C2, ...) | kzalloc(sizeof(TYPE) * C2, ...) | kzalloc(C1 * C2 * C3, ...) | kzalloc(C1 * C2, ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - kzalloc + kcalloc ( - (E1) * E2 + E1, E2 , ...) | - kzalloc + kcalloc ( - (E1) * (E2) + E1, E2 , ...) | - kzalloc + kcalloc ( - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
* Merge branch 'x86-pti-for-linus' of ↵Linus Torvalds2018-02-141-3/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 PTI and Spectre related fixes and updates from Ingo Molnar: "Here's the latest set of Spectre and PTI related fixes and updates: Spectre: - Add entry code register clearing to reduce the Spectre attack surface - Update the Spectre microcode blacklist - Inline the KVM Spectre helpers to get close to v4.14 performance again. - Fix indirect_branch_prediction_barrier() - Fix/improve Spectre related kernel messages - Fix array_index_nospec_mask() asm constraint - KVM: fix two MSR handling bugs PTI: - Fix a paranoid entry PTI CR3 handling bug - Fix comments objtool: - Fix paranoid_entry() frame pointer warning - Annotate WARN()-related UD2 as reachable - Various fixes - Add Add Peter Zijlstra as objtool co-maintainer Misc: - Various x86 entry code self-test fixes - Improve/simplify entry code stack frame generation and handling after recent heavy-handed PTI and Spectre changes. (There's two more WIP improvements expected here.) - Type fix for cache entries There's also some low risk non-fix changes I've included in this branch to reduce backporting conflicts: - rename a confusing x86_cpu field name - de-obfuscate the naming of single-TLB flushing primitives" * 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (41 commits) x86/entry/64: Fix CR3 restore in paranoid_exit() x86/cpu: Change type of x86_cache_size variable to unsigned int x86/spectre: Fix an error message x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping selftests/x86/mpx: Fix incorrect bounds with old _sigfault x86/mm: Rename flush_tlb_single() and flush_tlb_one() to __flush_tlb_one_[user|kernel]() x86/speculation: Add <asm/msr-index.h> dependency nospec: Move array_index_nospec() parameter checking into separate macro x86/speculation: Fix up array_index_nospec_mask() asm constraint x86/debug: Use UD2 for WARN() x86/debug, objtool: Annotate WARN()-related UD2 as reachable objtool: Fix segfault in ignore_unreachable_insn() selftests/x86: Disable tests requiring 32-bit support on pure 64-bit systems selftests/x86: Do not rely on "int $0x80" in single_step_syscall.c selftests/x86: Do not rely on "int $0x80" in test_mremap_vdso.c selftests/x86: Fix build bug caused by the 5lvl test which has been moved to the VM directory selftests/x86/pkeys: Remove unused functions selftests/x86: Clean up and document sscanf() usage selftests/x86: Fix vDSO selftest segfault for vsyscall=none x86/entry/64: Remove the unused 'icebp' macro ...
| * x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_steppingJia Zhang2018-02-151-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | x86_mask is a confusing name which is hard to associate with the processor's stepping. Additionally, correct an indent issue in lib/cpu.c. Signed-off-by: Jia Zhang <qianyue.zj@alibaba-inc.com> [ Updated it to more recent kernels. ] Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: bp@alien8.de Cc: tony.luck@intel.com Link: http://lkml.kernel.org/r/1514771530-70829-1-git-send-email-qianyue.zj@alibaba-inc.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | hwmon: (coretemp) deprecate pci_get_bus_and_slot()Sinan Kaya2018-01-021-1/+2
|/ | | | | | | | | | | | | pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as where a PCI device is present. This restricts the device drivers to be reused for other domain numbers. Use pci_get_domain_bus_and_slot() with a domain number of 0 where we can't extract the domain number. Other places, use the actual domain number from the device. Signed-off-by: Sinan Kaya <okaya@codeaurora.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (coretemp) Handle frozen hotplug state correctlyThomas Gleixner2017-05-141-0/+14
| | | | | | | | | | | | | | | | | | | | | | The recent conversion to the hotplug state machine missed that the original hotplug notifiers did not execute in the frozen state, which is used on suspend on resume. This does not matter on single socket machines, but on multi socket systems this breaks when the device for a non-boot socket is removed when the last CPU of that socket is brought offline. The device removal locks up the machine hard w/o any debug output. Prevent executing the hotplug callbacks when cpuhp_tasks_frozen is true. Thanks to Tommi for providing debug information patiently while I failed to spot the obvious. Fixes: e00ca5df37ad ("hwmon: (coretemp) Convert to hotplug state machine") Reported-by: Tommi Rantala <tt.rantala@gmail.com> Tested-by: Tommi Rantala <tt.rantala@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (coretemp) Simplify package managementThomas Gleixner2016-12-091-82/+38
| | | | | | | | | | | | | | | | Keeping track of the per package platform devices requires an extra object, which is held in a linked list. The maximum number of packages is known at init() time. So the extra object and linked list management can be replaced by an array of platform device pointers in which the per package devices pointers can be stored. Lookup becomes a simple array lookup instead of a list walk. The mutex protecting the list can be removed as well because the array is only accessed from cpu hotplug callbacks which are already serialized. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (coretemp) Use proper error codes in cpu online callbackThomas Gleixner2016-12-091-19/+5
| | | | | | | | | | | | | | | | | | The cpu online callback returns success unconditionally even when the device has no support, micro code mismatches or device allocation fails. Only if CPU_HOTPLUG is disabled, the init function checks whether the device list is empty and removes the driver. This does not make sense. If CPU HOTPLUG is enabled then there is no point to keep the driver around when it failed to initialize on the already online cpus. The chance that not yet online CPUs will provide a functional interface later is very close to zero. Add proper error return codes, so the setup of the cpu hotplug states fails when the device cannot be initialized and remove all the magic cruft. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (coretemp) Convert to hotplug state machineThomas Gleixner2016-12-091-57/+29
| | | | | | | | | | | | | | Install the callbacks via the state machine. Setup and teardown are handled by the hotplug core. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: linux-hwmon@vger.kernel.org Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Jean Delvare <jdelvare@suse.com> Cc: rt@linuxtronix.de Cc: Guenter Roeck <linux@roeck-us.net> Link: http://lkml.kernel.org/r/20161117183541.8588-5-bigeasy@linutronix.de Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (coretemp) Avoid redundant lookupsThomas Gleixner2016-12-091-13/+6
| | | | | | | No point in looking up the same thing over and over. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (coretemp) Simplify sibling managementThomas Gleixner2016-12-091-56/+37
| | | | | | | | | | | | | | | | The coretemp driver provides a sysfs interface per physical core. If hyperthreading is enabled and one of the siblings goes offline the sysfs interface is removed and then immeditately created again for the sibling. The only difference of them is the target cpu for the rdmsr_on_cpu() in the sysfs show functions. It's way simpler to keep a cpumask of cpus which are active in a package and only remove the interface when the last sibling goes offline. Otherwise just move the target cpu for the sysfs show functions to the still online sibling. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (coretemp) Fixup target cpu for package when cpu is offlinedThomas Gleixner2016-12-091-7/+24
| | | | | | | | | | | | | | | | | | | When a CPU is offlined nothing checks whether it is the target CPU for the package temperature sysfs interface. As a consequence all future readouts of the package temperature return crap: 90000 which is Tjmax of that package. Check whether the outgoing CPU is the target for the package and assign it to some other still online CPU in the package. Protect the change against the rdmsr_on_cpu() in show_crit_alarm(). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (coretemp) Increase limit of maximum core ID from 32 to 128.Lukasz Odzioba2015-10-141-1/+1
| | | | | | | | | | | | A new limit selected arbitrarily as power of two greater than required minimum for Xeon Phi processor (72 for Knights Landing). Currently driver is not able to handle cores with core ID greater than 32. Such attempt ends up with the following error in dmesg: coretemp coretemp.0: Adding Core XXX failed Signed-off-by: Lukasz Odzioba <lukasz.odzioba@intel.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* coretemp: Replace cpu_sibling_mask() with topology_sibling_cpumask()Bartosz Golaszewski2015-05-271-1/+2
| | | | | | | | | | | | | | | | | | | | | | The former duplicates the functionality of the latter but is neither documented nor arch-independent. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Cc: Benoit Cousson <bcousson@baylibre.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Jean Delvare <jdelvare@suse.de> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Oleg Drokin <oleg.drokin@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Cc: Russell King <linux@arm.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Viresh Kumar <viresh.kumar@linaro.org> Link: http://lkml.kernel.org/r/1432645896-12588-4-git-send-email-bgolaszewski@baylibre.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
* hwmon: (coretemp) Allow format checkingRasmus Villemoes2015-03-091-6/+5
| | | | | | | | | By extracting the only part that differs we can allow static checking of the format string, and possibly save a little .rodata. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> [Guenter Roeck: continuation line alignment] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: drop owner assignment from platform_driversWolfram Sang2014-10-201-1/+0
| | | | | | | A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* Revert "hwmon: (coretemp) Refine TjMax detection"Guenter Roeck2014-05-011-2/+2
| | | | | | | | | | | | | | | | | | | | | This reverts commit 9fb6c9c73b11bef65ba80a362547fd116c1e1c9d. Tjmax on some Intel CPUs is below 85 degrees C. One known example is L5630 with Tjmax of 71 degrees C. There are other Xeon processors with Tjmax of 70 or 80 degrees C. Also, the Intel IA32 System Programming document states that the temperature target is in bits 23:16 of MSR 0x1a2 (MSR_TEMPERATURE_TARGET), which is 8 bits, not 7. So even if turbostat uses similar checks to validate Tjmax, there is no evidence that the checks are actually required. On the contrary, the checks are known to cause problems and therefore need to be removed. This fixes https://bugzilla.kernel.org/show_bug.cgi?id=75071. Fixes: 9fb6c9c hwmon: (coretemp) Refine TjMax detection Reviewed-by: Jean Delvare <jdelvare@suse.de> Cc: stable@vger.kernel.org # 3.14+ Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* Merge tag 'cpu-hotplug-3.15-rc1' of ↵Linus Torvalds2014-04-071-7/+7
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull CPU hotplug notifiers registration fixes from Rafael Wysocki: "The purpose of this single series of commits from Srivatsa S Bhat (with a small piece from Gautham R Shenoy) touching multiple subsystems that use CPU hotplug notifiers is to provide a way to register them that will not lead to deadlocks with CPU online/offline operations as described in the changelog of commit 93ae4f978ca7f ("CPU hotplug: Provide lockless versions of callback registration functions"). The first three commits in the series introduce the API and document it and the rest simply goes through the users of CPU hotplug notifiers and converts them to using the new method" * tag 'cpu-hotplug-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (52 commits) net/iucv/iucv.c: Fix CPU hotplug callback registration net/core/flow.c: Fix CPU hotplug callback registration mm, zswap: Fix CPU hotplug callback registration mm, vmstat: Fix CPU hotplug callback registration profile: Fix CPU hotplug callback registration trace, ring-buffer: Fix CPU hotplug callback registration xen, balloon: Fix CPU hotplug callback registration hwmon, via-cputemp: Fix CPU hotplug callback registration hwmon, coretemp: Fix CPU hotplug callback registration thermal, x86-pkg-temp: Fix CPU hotplug callback registration octeon, watchdog: Fix CPU hotplug callback registration oprofile, nmi-timer: Fix CPU hotplug callback registration intel-idle: Fix CPU hotplug callback registration clocksource, dummy-timer: Fix CPU hotplug callback registration drivers/base/topology.c: Fix CPU hotplug callback registration acpi-cpufreq: Fix CPU hotplug callback registration zsmalloc: Fix CPU hotplug callback registration scsi, fcoe: Fix CPU hotplug callback registration scsi, bnx2fc: Fix CPU hotplug callback registration scsi, bnx2i: Fix CPU hotplug callback registration ...
| * hwmon, coretemp: Fix CPU hotplug callback registrationSrivatsa S. Bhat2014-03-201-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Subsystems that want to register CPU hotplug callbacks, as well as perform initialization for the CPUs that are already online, often do it as shown below: get_online_cpus(); for_each_online_cpu(cpu) init_cpu(cpu); register_cpu_notifier(&foobar_cpu_notifier); put_online_cpus(); This is wrong, since it is prone to ABBA deadlocks involving the cpu_add_remove_lock and the cpu_hotplug.lock (when running concurrently with CPU hotplug operations). Instead, the correct and race-free way of performing the callback registration is: cpu_notifier_register_begin(); for_each_online_cpu(cpu) init_cpu(cpu); /* Note the use of the double underscored version of the API */ __register_cpu_notifier(&foobar_cpu_notifier); cpu_notifier_register_done(); Fix the hwmon coretemp code by using this latter form of callback registration. Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Jean Delvare <jdelvare@suse.de> Cc: Ingo Molnar <mingo@kernel.org> Acked-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | hwmon: (coretemp) Convert to use devm_hwmon_device_register_with_groupsGuenter Roeck2014-03-031-39/+8
| | | | | | | | | | | | | | | | | | | | | | | | Simplify code, reduce code size, and attach sysfs attributes to hwmon device. For this driver, the only attribute created is the name attribute. Other attributes are still created and removed dynamically as cores are added or removed. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Tested-by: Jean Delvare <jdelvare@suse.de>
* | hwmon: (coretemp) Allocate platform data with devm_kzallocGuenter Roeck2014-03-031-7/+5
| | | | | | | | | | | | | | | | This simplifies error handling. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Tested-by: Jean Delvare <jdelvare@suse.de>
* | hwmon: (coretemp) Use sysfs_create_group to create sysfs attributesGuenter Roeck2014-03-031-13/+7
|/ | | | | | | | | Instead of creating each attribute individually, use sysfs_create_group to create all attributes for one core with a single call. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de> Tested-by: Jean Delvare <jdelvare@suse.de>
* hwmon: (coretemp) Do not return -EAGAIN for low temperaturesGuenter Roeck2014-01-141-8/+9
| | | | | | | | | | | Some Intel CPUs do not set the 'valid' bit in IA32_THERM_STATUS if the temperature is too low to be measured. This condition will not change until the CPU is hot enough for its temperature to be measured. Returning an error in such conditions is not very useful. Drop checking the valid bit and just return the reported temperature instead. Reviewed-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (coretemp) Refine TjMax detectionGuenter Roeck2014-01-141-2/+2
| | | | | | | | Intel's turbostat code uses only 7 bits from MSR_IA32_TEMPERATURE_TARGET to read TjMax, and also only accepts it if the reported temperature is at least 85 degrees C. Play safe and do the same. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (coretemp) Add PCI device ID for CE41x0 CPUsGuenter Roeck2014-01-141-3/+1
| | | | | | | | Since we now have to use PCI IDs to detect CPU types anyway, use this mechanism to detect CE41x0 CPUs. Advantage is that it only requires a single entry and covers all variants of CE41x0, including those unknown to us. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (coretemp) Use PCI host bridge ID to identify CPU if necessaryGuenter Roeck2014-01-141-3/+30
| | | | | | | | | | | | Atom S12x0 CPUs are identified by the CPU host bridge ID. Add an override table based on PCI IDs as well as code to detect it. PCI access functions can now be called with PCI disabled, so unlike previous attempts to use PCI IDs, the code no longer depends on it. If PCI is disabled, the CPU will not be identified correctly. Since it is unlikely that anything will work in this case, this is an acceptable limitation. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (coretemp) Fix truncated name of alarm attributesJean Delvare2014-01-141-1/+1
| | | | | | | | | | | | When the core number exceeds 9, the size of the buffer storing the alarm attribute name is insufficient and the attribute name is truncated. This causes libsensors to skip these attributes as the truncated name is not recognized. Reported-by: Andreas Hollmann <hollmann@in.tum.de> Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: stable@vger.kernel.org Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (coretemp) Atom CPUs don't support TjMax; no warning neededGuenter Roeck2013-08-111-1/+13
| | | | | | | Display warning "Unable to read TjMax from CPU x" only if the CPU is supposed to support it. This is not the case for the various Atom CPUs. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: delete __cpuinit usage from all hwmon filesPaul Gortmaker2013-07-141-21/+18
| | | | | | | | | | | | | | | | | | | | | | | The __cpuinit type of throwaway sections might have made sense some time ago when RAM was more constrained, but now the savings do not offset the cost and complications. For example, the fix in commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time") is a good example of the nasty type of bugs that can be created with improper use of the various __init prefixes. After a discussion on LKML[1] it was decided that cpuinit should go the way of devinit and be phased out. Once all the users are gone, we can then finally remove the macros themselves from linux/init.h. This removes all the drivers/hwmon uses of the __cpuinit macros from all C files. [1] https://lkml.org/lkml/2013/5/20/589 Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: lm-sensors@lm-sensors.org Acked-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* hwmon: (coretemp) Remove redundant platform_set_drvdata()Sachin Kamat2013-06-211-2/+0
| | | | | | | | | | Commit 0998d06310 (device-core: Ensure drvdata = NULL when no driver is bound) removes the need to set driver data field to NULL. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Rudolf Marek <r.marek@assembler.cz> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: Fix checkpatch warning 'quoted string split across lines'Guenter Roeck2013-04-071-2/+1
| | | | | | | | | | | | | Cc: Corentin Labbe <corentin.labbe@geomatys.fr> Cc: Mark M. Hoffman <mhoffman@lightlink.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Juerg Haefliger <juergh@gmail.com> Cc: Andreas Herrmann <herrmann.der.user@googlemail.com> Cc: Rudolf Marek <r.marek@assembler.cz> Cc: Jim Cromie <jim.cromie@gmail.com> Cc: Roger Lucas <vt8231@hiddenengine.co.uk> Cc: Marc Hulsman <m.hulsman@tudelft.nl> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (coretemp) Document and add support for additional CPU modelsGuenter Roeck2013-01-251-2/+3
| | | | | Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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