kernel/drivers/thermal, branch linux-5.19.y

thermal: intel_powerclamp: Use get_cpu() instead of smp_processor_id() to avoid crash

2022-10-24T07:58:09Z

[ Upstream commit 68b99e94a4a2db6ba9b31fe0485e057b9354a640 ] When CPU 0 is offline and intel_powerclamp is used to inject idle, it generates kernel BUG: BUG: using smp_processor_id() in preemptible [00000000] code: bash/15687 caller is debug_smp_processor_id+0x17/0x20 CPU: 4 PID: 15687 Comm: bash Not tainted 5.19.0-rc7+ #57 Call Trace: dump_stack_lvl+0x49/0x63 dump_stack+0x10/0x16 check_preemption_disabled+0xdd/0xe0 debug_smp_processor_id+0x17/0x20 powerclamp_set_cur_state+0x7f/0xf9 [intel_powerclamp] ... ... Here CPU 0 is the control CPU by default and changed to the current CPU, if CPU 0 offlined. This check has to be performed under cpus_read_lock(), hence the above warning. Use get_cpu() instead of smp_processor_id() to avoid this BUG. Suggested-by: Chen Yu Signed-off-by: Srinivas Pandruvada [ rjw: Subject edits ] Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin

thermal/drivers/qcom/tsens-v0_1: Fix MSM8939 fourth sensor hw_id

2022-10-24T07:58:07Z

[ Upstream commit b0c883e900702f408d62cf92b0ef01303ed69be9 ] Reading temperature from this sensor fails with 'Invalid argument'. Looking at old vendor dts [1], its hw_id should be 3 instead of 4. Change this hw_id accordingly. [1] https://github.com/msm8916-mainline/android_kernel_qcom_msm8916/blob/master/arch/arm/boot/dts/qcom/msm8939-common.dtsi#L511 Fixes: 332bc8ebab2c ("thermal: qcom: tsens-v0_1: Add support for MSM8939") Signed-off-by: Vincent Knecht Reviewed-by: Dmitry Baryshkov Reviewed-by: Bjorn Andersson Reviewed-by: Bryan O'Donoghue Link: https://lore.kernel.org/r/20220811105014.7194-1-vincent.knecht@mailoo.org Signed-off-by: Daniel Lezcano Signed-off-by: Sasha Levin

thermal: cpufreq_cooling: Check the policy first in cpufreq_cooling_register()

2022-10-24T07:57:01Z

[ Upstream commit cff895277c8558221ba180aefe26799dcb4eec86 ] Since the policy needs to be accessed first when obtaining cpu devices, first check whether the policy is legal before this. Fixes: 5130802ddbb1 ("thermal: cpu_cooling: Switch to QoS requests for freq limits") Signed-off-by: Xuewen Yan Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin

thermal/int340x_thermal: handle data_vault when the value is ZERO_SIZE_PTR

2022-09-15T08:47:09Z

[ Upstream commit 7931e28098a4c1a2a6802510b0cbe57546d2049d ] In some case, the GDDV returns a package with a buffer which has zero length. It causes that kmemdup() returns ZERO_SIZE_PTR (0x10). Then the data_vault_read() got NULL point dereference problem when accessing the 0x10 value in data_vault. [ 71.024560] BUG: kernel NULL pointer dereference, address: 0000000000000010 This patch uses ZERO_OR_NULL_PTR() for checking ZERO_SIZE_PTR or NULL value in data_vault. Signed-off-by: "Lee, Chun-Yi" Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin

PM: EM: convert power field to micro-Watts precision and align drivers

2022-08-17T13:14:05Z

[ Upstream commit ae6ccaa650380d243cf43d31c864c5ced2fd4612 ] The milli-Watts precision causes rounding errors while calculating efficiency cost for each OPP. This is especially visible in the 'simple' Energy Model (EM), where the power for each OPP is provided from OPP framework. This can cause some OPPs to be marked inefficient, while using micro-Watts precision that might not happen. Update all EM users which access 'power' field and assume the value is in milli-Watts. Solve also an issue with potential overflow in calculation of energy estimation on 32bit machine. It's needed now since the power value (thus the 'cost' as well) are higher. Example calculation which shows the rounding error and impact: power = 'dyn-power-coeff' * volt_mV * volt_mV * freq_MHz power_a_uW = (100 * 600mW * 600mW * 500MHz) / 10^6 = 18000 power_a_mW = (100 * 600mW * 600mW * 500MHz) / 10^9 = 18 power_b_uW = (100 * 605mW * 605mW * 600MHz) / 10^6 = 21961 power_b_mW = (100 * 605mW * 605mW * 600MHz) / 10^9 = 21 max_freq = 2000MHz cost_a_mW = 18 * 2000MHz/500MHz = 72 cost_a_uW = 18000 * 2000MHz/500MHz = 72000 cost_b_mW = 21 * 2000MHz/600MHz = 70 // <- artificially better cost_b_uW = 21961 * 2000MHz/600MHz = 73203 The 'cost_b_mW' (which is based on old milli-Watts) is misleadingly better that the 'cost_b_uW' (this patch uses micro-Watts) and such would have impact on the 'inefficient OPPs' information in the Cpufreq framework. This patch set removes the rounding issue. Signed-off-by: Lukasz Luba Acked-by: Daniel Lezcano Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin

thermal: sysfs: Fix cooling_device_stats_setup() error code path

2022-08-17T13:13:47Z

commit d5a8aa5d7d80d21ab6b266f1bed4194b61746199 upstream. If cooling_device_stats_setup() fails to create the stats object, it must clear the last slot in cooling_device_attr_groups that was initially empty (so as to make it possible to add stats attributes to the cooling device attribute groups). Failing to do so may cause the stats attributes to be created by mistake for a device that doesn't have a stats object, because the slot in question might be populated previously during the registration of another cooling device. Fixes: 8ea229511e06 ("thermal: Add cooling device's statistics in sysfs") Reported-by: Di Shen Tested-by: Di Shen Cc: 4.17+ # 4.17+ Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman

Merge tag 'thermal-5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2022-07-01T20:00:47Z

Pull thermal control fix from Rafael Wysocki: "Add a new CPU ID to the list of supported processors in the intel_tcc_cooling driver (Sumeet Pawnikar)" * tag 'thermal-5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: thermal: intel_tcc_cooling: Add TCC cooling support for RaptorLake

thermal: intel_tcc_cooling: Add TCC cooling support for RaptorLake

2022-06-30T17:48:44Z

Add RaptorLake to the list of processor models supported by the Intel TCC cooling driver. Signed-off-by: Sumeet Pawnikar [ rjw: Subject edits, new changelog ] Signed-off-by: Rafael J. Wysocki

Merge tag 'thermal-5.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2022-05-30T18:34:13Z

Pull additional thermal control update from Rafael Wysocki: "Add Meteor Lake PCI device ID to the int340x thermal control driver (Sumeet Pawnikar)" * tag 'thermal-5.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: thermal: int340x: Add Meteor Lake PCI device ID

thermal: int340x: Add Meteor Lake PCI device ID

2022-05-25T13:44:58Z

Add Meteor Lake PCI ID for processor thermal device. Signed-off-by: Sumeet Pawnikar Reviewed-by: Srinivas Pandruvada Signed-off-by: Rafael J. Wysocki