talos-op-linux/drivers/hwmon/coretemp.c, branch v3.1-rc3

hwmon: (coretemp) Add core/pkg threshold support to Coretemp

2011-07-28T07:17:36+00:00

This patch adds the core and pkg support to coretemp. These thresholds can be configured via the sysfs interfaces tempX_max and tempX_max_hyst. An interrupt is generated when CPU temperature reaches or crosses above tempX_max OR drops below tempX_max_hyst. This patch is based on the documentation in IA Manual vol 3A, that can be downloaded from here: http://download.intel.com/design/processor/manuals/253668.pdf Signed-off-by: Durgadoss R Signed-off-by: Guenter Roeck

hwmon: (coretemp) Drop unused struct members

2011-06-18T06:22:26+00:00

pdev_entry.cpu and pdev_entry.cpu_core_id aren't used anywhere in the driver code so we can drop these struct members. Signed-off-by: Jean Delvare Cc: Fenghua Yu Cc: Guenter Roeck Cc: Durgadoss R Signed-off-by: Guenter Roeck

hwmon: (coretemp) Further relax temperature range checks

2011-06-02T03:10:40+00:00

Further relax temperature range checks after reading the IA32_TEMPERATURE_TARGET register. If the register returns a value other than 0 in bits 16..32, assume that the returned value is correct. This change applies to both packet and core temperature limits. Cc: Carsten Emde Cc: Fenghua Yu Cc: Jean Delvare Signed-off-by: Guenter Roeck Acked-by: Fenghua Yu

hwmon: (coretemp) Fix TjMax detection for older CPUs

2011-06-02T03:10:31+00:00

Commit a321cedb12904114e2ba5041a3673ca24deb09c9 excludes CPU models 0xe, 0xf, 0x16, and 0x1a from TjMax temperature adjustment, even though several of those CPUs are known to have TiMax other than 100 degrees C, and even though the code in adjust_tjmax() explicitly handles those CPUs and points to a Web document listing several of the affected CPU IDs. Reinstate original TjMax adjustment if TjMax can not be determined using the IA32_TEMPERATURE_TARGET register. https://bugzilla.kernel.org/show_bug.cgi?id=32582 Signed-off-by: Guenter Roeck Cc: Huaxu Wan Cc: Carsten Emde Cc: Valdis Kletnieks Cc: Henrique de Moraes Holschuh Cc: Yong Wang Cc: Rudolf Marek Cc: Fenghua Yu Tested-by: Jean Delvare Acked-by: Jean Delvare Acked-by: Fenghua Yu Cc: # .35.x .36.x .37.x .38.x .39.x

hwmon: (coretemp) Relax target temperature range check

2011-06-01T18:11:28+00:00

The current temperature range check of MSR_IA32_TEMPERATURE_TARGET seems too strict to me, some TjMax values documented in Documentation/hwmon/coretemp wouldn't pass. Relax the check so that all the documented values pass. Signed-off-by: Jean Delvare Cc: Carsten Emde Cc: Fenghua Yu Signed-off-by: Guenter Roeck

hwmon: (coretemp) Fix section mismatch

2011-05-27T09:24:54+00:00

chk_ucode_version() is only called from coretemp_probe() which is __devinit, so it can be marked __devinit too. Signed-off-by: Jean Delvare Cc: Durgadoss R Cc: Fenghua Yu Cc: Guenter Roeck Signed-off-by: Guenter Roeck

hwmon: (coretemp) Update comments describing the handling of HT CPUs

2011-05-27T09:24:53+00:00

Update comments describing the handling of HT CPUs based on review feedback. Signed-off-by: Guenter Roeck Cc: Fenghua Yu Cc: Durgadoss R Acked-by: Jean Delvare

hwmon: (coretemp) Initialize sysfs attributes

2011-05-27T09:24:53+00:00

Initialize sysfs attrs before device_create_file() call to suppress lockdep_init_map() warning: [ 3.653628] WARNING: at kernel/lockdep.c:2885 lockdep_init_map+0xea/0x43c() [ 3.653698] Modules linked in: [ 3.654835] Pid: 1, comm: swapper Not tainted 2.6.39-dbg-git8-05624-g46187f8 #576 [ 3.656014] Call Trace: [ 3.657139] [] warn_slowpath_common+0x7e/0x96 [ 3.658298] [] warn_slowpath_null+0x15/0x17 [ 3.659460] [] lockdep_init_map+0xea/0x43c [ 3.660616] [] sysfs_add_file_mode+0x5d/0xa8 [ 3.661785] [] sysfs_add_file+0xc/0xe [ 3.662929] [] sysfs_create_file+0x23/0x25 [ 3.664045] [] device_create_file+0x14/0x16 [ 3.665172] [] coretemp_probe+0xf9/0x185 [ 3.666306] [] platform_drv_probe+0x12/0x14 [ 3.667420] [] driver_probe_device+0xb0/0x14b [ 3.668542] [] __device_attach+0x35/0x3a [ 3.669710] [] ? __driver_attach+0x7c/0x7c [ 3.670816] [] bus_for_each_drv+0x54/0x88 [ 3.671921] [] device_attach+0x77/0x9b [ 3.673027] [] bus_probe_device+0x22/0x39 [ 3.674137] [] device_add+0x3c1/0x550 [ 3.675249] [] ? dev_set_name+0x3c/0x3e [ 3.676371] [] platform_device_add+0x10c/0x156 [ 3.677491] [] get_core_online+0xab/0x16e [ 3.678608] [] coretemp_init+0x4b/0x80 [ 3.679724] [] ? hwmon_init+0xee/0xee [ 3.680853] [] do_one_initcall+0x7a/0x13c [ 3.681975] [] kernel_init+0xe1/0x15b [ 3.683081] [] kernel_thread_helper+0x4/0x10 [ 3.684174] [] ? finish_task_switch+0x76/0xf0 [ 3.685266] [] ? retint_restore_args+0x13/0x13 [ 3.686356] [] ? start_kernel+0x3ee/0x3ee [ 3.687425] [] ? gs_change+0x13/0x13 [ 3.688489] ---[ end trace 7392ad3e6a92ae39 ]--- Signed-off-by: Sergey Senozhatsky Signed-off-by: Guenter Roeck

hwmon: (coretemp) Add comments describing the handling of HT CPUs

2011-05-24T04:11:14+00:00

The coretemp driver provides a single set of device attributes for each physical core of a HT CPU to avoid duplicate sensors. This functionality was introduced with commit d883b9f09772 ("hwmon: (coretemp) Skip duplicate CPU entries"). Commit e40cc4bdfd4b ("x86/hwmon: register alternate sibling upon CPU removal") extends this functionality to register the HT sibling of a CPU which is taken offline, to ensure that sensor attributes are provided if at least one HT sibling of a core is online. Add comments into the code describing the functionality in some more detail. Signed-off-by: Guenter Roeck Cc: Fenghua Yu Cc: Durgadoss R Signed-off-by: Linus Torvalds

hwmon: (coretemp) Fix compile error if CONFIG_SMP is not defined

2011-05-23T18:59:08+00:00

cpu_sibling_mask() is not defined unless CONFIG_SMP is defined, so it must not be used directly in the code without ifdef protection. To solve the problem and avoid ifdefs in the code, define for_each_sibling() and use it instead. Signed-off-by: Guenter Roeck Cc: Fenghua Yu Cc: Durgadoss R Signed-off-by: Linus Torvalds