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OpenCloudOS-Kernel
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Zhang Rui 2eb87d75f9 thermal/drivers/intel: Introduce tcc cooling driver 
On Intel processors, the core frequency can be reduced below OS request,
when the current temperature reaches the TCC (Thermal Control Circuit)
activation temperature.

The default TCC activation temperature is specified by
MSR_IA32_TEMPERATURE_TARGET. However, it can be adjusted by specifying an
offset in degrees C, using the TCC Offset bits in the same MSR register.

This patch introduces a cooling devices driver that utilizes the TCC
Offset feature. The bigger the current cooling state is, the lower the
effective TCC activation temperature is, so that the processors can be
throttled earlier before system critical overheats.

Note that, on different platforms, the behavior might be different on
how fast the setting takes effect, and how much the CPU frequency is
reduced.

This patch has been tested on a KabyLake mobile platform from me, and also
on a CometLake platform from Doug.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Tested by: Doug Smythies <dsmythies@telus.net>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210412125901.12549-1-rui.zhang@intel.com
 		2021-04-20 09:18:57 +02:00
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accessibility Char/Misc driver patches for 5.12-rc1 2021-02-24 10:25:37 -08:00
acpi Additional ACPI updates for v5.12-rc1 2021-02-25 12:03:13 -08:00
amba
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android
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ata
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atm atm: idt77252: fix build broken on amd64 2021-02-15 12:36:27 -08:00
auxdisplay treewide: Miguel has moved 2021-02-26 09:41:03 -08:00
base PM: runtime: Update device status before letting suppliers suspend 2021-03-01 17:40:38 +01:00
bcma
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block rsxx: Return -EFAULT if copy_to_user() fails 2021-03-03 06:48:44 -07:00
bluetooth TTY/Serial driver changes for 5.12-rc1 2021-02-20 21:28:04 -08:00
bus Char/Misc driver patches for 5.12-rc1 2021-02-24 10:25:37 -08:00
cdrom
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char tpmdd updates for Linux v5.12-rc2 2021-03-04 12:51:57 -08:00
clk RISC-V Patches for the 5.12 Merge Window 2021-02-26 10:28:35 -08:00
clocksource A small set of clockevent fixes which fell through the cracks 2021-02-22 14:11:36 -08:00
connector
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counter
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cpufreq Simple Firmware Interface (SFI) support removal for v5.12-rc1 2021-02-24 10:35:29 -08:00
cpuidle
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crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2021-02-21 17:23:56 -08:00
cxl cxl/mem: Fix potential memory leak 2021-02-22 14:44:39 -08:00
dax Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2021-02-27 08:07:12 -08:00
dca
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devfreq Merge branches 'pm-devfreq' and 'pm-tools' 2021-02-15 17:02:04 +01:00
dio
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dma dmaengine updates for v5.12-rc1 2021-02-23 15:05:10 -08:00
dma-buf dma-fence: allow signaling drivers to set fence timestamp 2021-02-24 21:05:28 +05:30
edac Merge branch 'edac-misc' into edac-updates-for-v5.12 2021-02-15 10:06:58 +01:00
eisa
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extcon
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firewire
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firmware Char/Misc driver patches for 5.12-rc1 2021-02-24 10:25:37 -08:00
fpga
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fsi
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gnss
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gpio Driver core / debugfs update for 5.12-rc1 2021-02-24 10:13:55 -08:00
gpu Merge tag 'amd-drm-fixes-5.12-2021-03-03' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes 2021-03-05 11:13:22 +10:00
greybus
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hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid 2021-02-23 14:52:22 -08:00
hsi
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hv mm/memory_hotplug: MEMHP_MERGE_RESOURCE -> MHP_MERGE_RESOURCE 2021-02-26 09:41:00 -08:00
hwmon Devicetree updates for v5.12: 2021-02-22 10:05:12 -08:00
hwspinlock
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hwtracing ARM updates for 5.12-rc1: 2021-02-22 14:27:07 -08:00
i2c i2c: exynos5: Preserve high speed master code 2021-02-26 11:47:42 +01:00
i3c I3C for 5.12 2021-02-22 09:52:55 -08:00
ide ide-5.11-2021-02-28 2021-02-28 15:48:25 -08:00
idle
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iio - Use the newly introduced 'hot' and 'critical' ops for the acpi 2021-02-22 09:39:11 -08:00
infiniband RDMA/rxe: Fix errant WARN_ONCE in rxe_completer() 2021-03-05 14:15:22 -04:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2021-02-23 14:56:23 -08:00
interconnect
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iommu IOMMU Fixes for Linux v5.12-rc1 2021-03-05 12:26:24 -08:00
ipack
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irqchip irqchip updates for Linux 5.12: 2021-02-15 15:41:56 +01:00
isdn
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leds Updates for 5.12-rc1. Besides usual fixes and new drivers, we are 2021-02-26 13:56:40 -08:00
lightnvm lightnvm: pblk: Replace guid_copy() with export_guid()/import_guid() 2021-02-14 21:27:24 -07:00
macintosh
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mailbox mailbox: arm_mhuv2: Skip calling kfree() with invalid pointer 2021-02-22 13:34:27 -06:00
mcb
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md Fix DM verity target's optional Forward Error Correction (FEC) for 2021-03-05 13:25:23 -08:00
media Fixes around VM_FPNMAP and follow_pfn 2021-02-22 17:45:02 -08:00
memory Char/Misc driver patches for 5.12-rc1 2021-02-24 10:25:37 -08:00
memstick
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message
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mfd Simple Firmware Interface (SFI) support removal for v5.12-rc1 2021-02-24 10:35:29 -08:00
misc pci-v5.12-changes 2021-02-25 09:56:08 -08:00
mmc Merge branch 'stable/for-linus-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb 2021-02-26 13:59:32 -08:00
most
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mtd This pull request contains changes (actually just fixes) for UBIFS 2021-02-21 13:57:08 -08:00
mux
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net thermal/drivers/core: Use a char pointer for the cooling device name 2021-03-15 04:46:25 +01:00
nfc Char/Misc driver patches for 5.12-rc1 2021-02-24 10:25:37 -08:00
ntb NTB: Add support for EPF PCI Non-Transparent Bridge 2021-02-23 14:12:53 -06:00
nubus
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nvdimm libnvdimm + device-dax for 5.12 2021-02-24 09:35:54 -08:00
nvme nvmet: model_number must be immutable once set 2021-03-05 13:41:03 +01:00
nvmem
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of Char/Misc driver patches for 5.12-rc1 2021-02-24 10:25:37 -08:00
opp opp: Don't skip freq update for different frequency 2021-02-18 12:31:08 +05:30
parisc
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parport
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pci pci-v5.12-changes 2021-02-25 09:56:08 -08:00
pcmcia Merge branch 'pcmcia-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux 2021-02-26 13:54:43 -08:00
perf IOMMU Updates for Linux v5.12 2021-02-22 10:31:29 -08:00
phy
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pinctrl RISC-V Patches for the 5.12 Merge Window 2021-02-26 10:28:35 -08:00
platform Additional ACPI updates for v5.12-rc1 2021-02-25 12:03:13 -08:00
pnp
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power
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powercap powercap/drivers/dtpm: Add the experimental label to the option description 2021-03-01 17:43:29 +01:00
pps
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ps3
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ptp ptp: ptp_clockmatrix: clean-up - parenthesis around a == b are unnecessary 2021-02-17 13:49:26 -08:00
pwm pwm: Changes for v5.12-rc1 2021-02-25 12:23:49 -08:00
rapidio
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ras
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regulator - Core Frameworks 2021-02-22 09:29:42 -08:00
remoteproc remoteproc: qcom: pas: Add SM8350 PAS remoteprocs 2021-02-11 12:52:18 -06:00
reset RISC-V Patches for the 5.12 Merge Window 2021-02-26 10:28:35 -08:00
rpmsg
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rtc Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2021-02-27 08:07:12 -08:00
s390 Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2021-02-27 08:07:12 -08:00
sbus
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scsi scsi: iscsi: Verify lengths on passthrough PDUs 2021-03-04 20:09:51 -05:00
sh
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siox
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slimbus
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soc OpenRISC updates for 5.12 2021-02-26 14:16:06 -08:00
soundwire ALSA: hda: move Intel SoundWire ACPI scan to dedicated module 2021-03-02 15:33:00 +01:00
spi powerpc updates for 5.12 2021-02-22 14:34:00 -08:00
spmi spmi: spmi-pmic-arb: Fix hw_irq overflow 2021-02-12 12:26:46 +01:00
ssb
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staging Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2021-02-27 08:07:12 -08:00
target SCSI misc on 20210228 2021-02-28 11:51:20 -08:00
tc
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tee
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thermal thermal/drivers/intel: Introduce tcc cooling driver 2021-04-20 09:18:57 +02:00
thunderbolt
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tty Char/Misc driver patches for 5.12-rc1 2021-02-24 10:25:37 -08:00
uio
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usb Kbuild updates for v5.12 2021-02-25 10:17:31 -08:00
vdpa vdpa/mlx5: fix param validation in mlx5_vdpa_get_config() 2021-02-23 07:52:59 -05:00
vfio VFIO updates for v5.12-rc1 2021-02-24 10:43:40 -08:00
vhost virtio: features, fixes 2021-02-25 12:21:08 -08:00
video drm fixes for 5.12-rc1 + msm-next 2021-02-25 12:10:22 -08:00
virt
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virtio Merge branch 'akpm' (patches from Andrew) 2021-02-26 09:50:09 -08:00
visorbus
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vlynq
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vme
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w1
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watchdog Char/Misc driver patches for 5.12-rc1 2021-02-24 10:25:37 -08:00
xen xen: branch for v5.12-rc1 2021-02-26 10:04:45 -08:00
zorro
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Kconfig cxl/mem: Introduce a driver for CXL-2.0-Type-3 endpoints 2021-02-16 20:36:38 -08:00
Makefile Simple Firmware Interface (SFI) support removal for v5.12-rc1 2021-02-24 10:35:29 -08:00