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Message-ID: <e1b3112fd6c8c889408915e9a849301d13acf2f1.camel@fifi.org> Date: Tue, 08 Mar 2022 19:50:35 -0800 From: Philippe Troin <phil@...i.org> To: "Rafael J. Wysocki" <rafael.j.wysocki@...el.com> Cc: linux-kernel@...r.kernel.org Subject: Bisected regression: 4287509b4d21 causes HP Spectre 14t-ea100 to overheat while suspended Linux 5.16.9 was working fine, but starting with 5.16.10 my main laptop has been overheating while suspended. I've also tried 5.16.11, 5.16.12 and 5.16.13 and they also show the same issue (overheating while suspended). I could not spot any difference between the dmesg messages issued during suspend between a working version (5.16.9) and the the broken ones (5.16.1[0-3]). I've bisected the regression down to commit 4287509b4d21 https://lore.kernel.org/lkml/20220214092510.074083242@linuxfoundation.org/ I have also tried reverting that change on top of 5.16.12, and the overheating behavior is gone. lspci and other details below. Phil. The laptop is a HP Spectre x360 Convertible 14t-ea100. CPU (/proc/cpuinfo): 11th Gen Intel(R) Core(TM) i7-1195G7 @ 2.90GHz # lspci -v 0000:00:00.0 Host bridge: Intel Corporation 11th Gen Core Processor Host Bridge/DRAM Registers (rev 02) Subsystem: Hewlett-Packard Company Device 89db Flags: bus master, fast devsel, latency 0, IOMMU group 0 Capabilities: [e0] Vendor Specific Information: Len=14 <?> Kernel modules: igen6_edac 0000:00:02.0 VGA compatible controller: Intel Corporation TigerLake-LP GT2 [Iris Xe Graphics] (rev 03) (prog-if 00 [VGA controller]) DeviceName: Onboard IGD Subsystem: Hewlett-Packard Company Device 89db Flags: bus master, fast devsel, latency 0, IRQ 159, IOMMU group 1 Memory at 603e000000 (64-bit, non-prefetchable) [size=16M] Memory at 4000000000 (64-bit, prefetchable) [size=256M] I/O ports at 3000 [size=64] Expansion ROM at 000c0000 [virtual] [disabled] [size=128K] Capabilities: [40] Vendor Specific Information: Len=0c <?> Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00 Capabilities: [ac] MSI: Enable+ Count=1/1 Maskable+ 64bit- Capabilities: [d0] Power Management version 2 Capabilities: [100] Process Address Space ID (PASID) Capabilities: [200] Address Translation Service (ATS) Capabilities: [300] Page Request Interface (PRI) Capabilities: [320] Single Root I/O Virtualization (SR-IOV) Kernel driver in use: i915 Kernel modules: i915 0000:00:04.0 Signal processing controller: Intel Corporation TigerLake-LP Dynamic Tuning Processor Participant (rev 02) Subsystem: Hewlett-Packard Company Device 89db Flags: fast devsel, IRQ 16, IOMMU group 2 Memory at 603f240000 (64-bit, non-prefetchable) [size=128K] Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [d0] Power Management version 3 Capabilities: [e0] Vendor Specific Information: Len=0c <?> Kernel driver in use: proc_thermal Kernel modules: processor_thermal_device_pci_legacy 0000:00:07.0 PCI bridge: Intel Corporation Tiger Lake-LP Thunderbolt 4 PCI Express Root Port #0 (rev 02) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0, IRQ 124, IOMMU group 3 Bus: primary=00, secondary=01, subordinate=2b, sec-latency=0 I/O behind bridge: 00004000-00004fff [size=4K] Memory behind bridge: 7a000000-861fffff [size=194M] Prefetchable memory behind bridge: 0000006020000000-000000603bffffff [size=448M] Capabilities: [40] Express Root Port (Slot+), MSI 00 Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Hewlett-Packard Company Device 89da Capabilities: [a0] Power Management version 3 Capabilities: [100] Null Capabilities: [220] Access Control Services Capabilities: [a00] Downstream Port Containment Kernel driver in use: pcieport 0000:00:07.1 PCI bridge: Intel Corporation Tiger Lake-LP Thunderbolt 4 PCI Express Root Port #1 (rev 02) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0, IRQ 125, IOMMU group 4 Bus: primary=00, secondary=2c, subordinate=56, sec-latency=0 I/O behind bridge: 00005000-00005fff [size=4K] Memory behind bridge: 6c000000-781fffff [size=194M] Prefetchable memory behind bridge: 0000006000000000-000000601bffffff [size=448M] Capabilities: [40] Express Root Port (Slot+), MSI 00 Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Hewlett-Packard Company Device 89da Capabilities: [a0] Power Management version 3 Capabilities: [100] Null Capabilities: [220] Access Control Services Capabilities: [a00] Downstream Port Containment Kernel driver in use: pcieport 0000:00:08.0 System peripheral: Intel Corporation GNA Scoring Accelerator module (rev 02) Subsystem: Hewlett-Packard Company Device 89db Flags: fast devsel, IRQ 255, IOMMU group 5 Memory at 603f2a2000 (64-bit, non-prefetchable) [disabled] [size=4K] Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [a0] Vendor Specific Information: Len=14 <?> Capabilities: [dc] Power Management version 2 Capabilities: [f0] PCI Advanced Features 0000:00:0d.0 USB controller: Intel Corporation Tiger Lake-LP Thunderbolt 4 USB Controller (rev 02) (prog-if 30 [XHCI]) Subsystem: Hewlett-Packard Company Device 89db Flags: bus master, medium devsel, latency 0, IRQ 127, IOMMU group 6 Memory at 603f280000 (64-bit, non-prefetchable) [size=64K] Capabilities: [70] Power Management version 2 Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+ Capabilities: [90] Vendor Specific Information: Len=14 <?> Capabilities: [b0] Vendor Specific Information: Len=00 <?> Kernel driver in use: xhci_hcd 0000:00:0d.2 USB controller: Intel Corporation Tiger Lake-LP Thunderbolt 4 NHI #0 (rev 02) (prog-if 40 [USB4 Host Interface]) Subsystem: Device 2222:1111 Flags: bus master, fast devsel, latency 0, IRQ 16, IOMMU group 6 Memory at 603f200000 (64-bit, non-prefetchable) [size=256K] Memory at 603f2a1000 (64-bit, non-prefetchable) [size=4K] Capabilities: [80] Power Management version 3 Capabilities: [88] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [a0] MSI-X: Enable+ Count=16 Masked- Kernel driver in use: thunderbolt Kernel modules: thunderbolt 0000:00:0e.0 RAID bus controller: Intel Corporation Volume Management Device NVMe RAID Controller Subsystem: Intel Corporation Device 0000 Flags: bus master, fast devsel, latency 0, IOMMU group 7 Memory at 603c000000 (64-bit, non-prefetchable) [size=32M] Memory at 6a000000 (32-bit, non-prefetchable) [size=32M] Memory at 603f100000 (64-bit, non-prefetchable) [size=1M] Capabilities: [80] MSI-X: Enable+ Count=19 Masked- Capabilities: [90] Express Root Complex Integrated Endpoint, MSI 00 Capabilities: [e0] Power Management version 3 Kernel driver in use: vmd Kernel modules: vmd 0000:00:12.0 Serial controller: Intel Corporation Tiger Lake-LP Integrated Sensor Hub (rev 30) (prog-if 00 [8250]) Subsystem: Hewlett-Packard Company Device 89db Flags: bus master, fast devsel, latency 0, IRQ 16, IOMMU group 8 Memory at 603f270000 (64-bit, non-prefetchable) [size=64K] Capabilities: [80] Power Management version 3 Capabilities: [90] Vendor Specific Information: Len=14 <?> Kernel driver in use: intel_ish_ipc Kernel modules: intel_ish_ipc 0000:00:14.0 USB controller: Intel Corporation Tiger Lake-LP USB 3.2 Gen 2x1 xHCI Host Controller (rev 30) (prog-if 30 [XHCI]) Subsystem: Hewlett-Packard Company Device 89db Flags: bus master, medium devsel, latency 0, IRQ 128, IOMMU group 9 Memory at 603f260000 (64-bit, non-prefetchable) [size=64K] Capabilities: [70] Power Management version 2 Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+ Capabilities: [90] Vendor Specific Information: Len=14 <?> Capabilities: [b0] Vendor Specific Information: Len=00 <?> Kernel driver in use: xhci_hcd 0000:00:14.2 RAM memory: Intel Corporation Tiger Lake-LP Shared SRAM (rev 30) Subsystem: Hewlett-Packard Company Device 89db Flags: fast devsel, IOMMU group 9 Memory at 603f298000 (64-bit, non-prefetchable) [disabled] [size=16K] Memory at 603f2a0000 (64-bit, non-prefetchable) [disabled] [size=4K] Capabilities: [80] Power Management version 3 0000:00:14.3 Network controller: Intel Corporation Wi-Fi 6 AX201 (rev 30) DeviceName: Intel Wi-Fi 6 AX201 Subsystem: Intel Corporation Device 0074 Flags: bus master, fast devsel, latency 0, IRQ 19, IOMMU group 10 Memory at 603f294000 (64-bit, non-prefetchable) [size=16K] Capabilities: [c8] Power Management version 3 Capabilities: [d0] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [40] Express Root Complex Integrated Endpoint, MSI 00 Capabilities: [80] MSI-X: Enable+ Count=16 Masked- Capabilities: [100] Latency Tolerance Reporting Capabilities: [164] Vendor Specific Information: ID=0010 Rev=0 Len=014 <?> Kernel driver in use: iwlwifi Kernel modules: iwlwifi 0000:00:15.0 Serial bus controller: Intel Corporation Tiger Lake-LP Serial IO I2C Controller #0 (rev 30) Subsystem: Hewlett-Packard Company Device 89db Flags: bus master, fast devsel, latency 0, IRQ 27, IOMMU group 11 Memory at 4017000000 (64-bit, non-prefetchable) [virtual] [size=4K] Capabilities: [80] Power Management version 3 Capabilities: [90] Vendor Specific Information: Len=14 <?> Kernel driver in use: intel-lpss 0000:00:15.1 Serial bus controller: Intel Corporation Tiger Lake-LP Serial IO I2C Controller #1 (rev 30) Subsystem: Hewlett-Packard Company Device 89db Flags: bus master, fast devsel, latency 0, IRQ 40, IOMMU group 11 Memory at 4017001000 (64-bit, non-prefetchable) [virtual] [size=4K] Capabilities: [80] Power Management version 3 Capabilities: [90] Vendor Specific Information: Len=14 <?> Kernel driver in use: intel-lpss 0000:00:16.0 Communication controller: Intel Corporation Tiger Lake-LP Management Engine Interface (rev 30) Subsystem: Hewlett-Packard Company Device 89db Flags: bus master, fast devsel, latency 0, IRQ 186, IOMMU group 12 Memory at 603f29d000 (64-bit, non-prefetchable) [size=4K] Capabilities: [50] Power Management version 3 Capabilities: [8c] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [a4] Vendor Specific Information: Len=14 <?> Kernel driver in use: mei_me Kernel modules: mei_me 0000:00:1c.0 PCI bridge: Intel Corporation Tigerlake PCH-LP PCI Express Root Port #6 (rev 30) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0, IRQ 126, IOMMU group 13 Bus: primary=00, secondary=57, subordinate=57, sec-latency=0 I/O behind bridge: [disabled] Memory behind bridge: 86300000-863fffff [size=1M] Prefetchable memory behind bridge: [disabled] Capabilities: [40] Express Root Port (Slot-), MSI 00 Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Hewlett-Packard Company Device 89db Capabilities: [a0] Power Management version 3 Capabilities: [100] Advanced Error Reporting Capabilities: [220] Access Control Services Capabilities: [150] Precision Time Measurement Capabilities: [200] L1 PM Substates Capabilities: [a30] Secondary PCI Express Capabilities: [a00] Downstream Port Containment Kernel driver in use: pcieport 0000:00:1d.0 System peripheral: Intel Corporation Device 09ab Subsystem: Hewlett-Packard Company Device 89da Flags: fast devsel, IOMMU group 14 0000:00:1f.0 ISA bridge: Intel Corporation Tiger Lake-LP LPC Controller (rev 30) Subsystem: Hewlett-Packard Company Device 89db Flags: bus master, fast devsel, latency 0, IOMMU group 15 0000:00:1f.3 Multimedia audio controller: Intel Corporation Tiger Lake-LP Smart Sound Technology Audio Controller (rev 30) Subsystem: Hewlett-Packard Company Device 89da Flags: bus master, fast devsel, latency 32, IRQ 197, IOMMU group 15 Memory at 603f290000 (64-bit, non-prefetchable) [size=16K] Memory at 603f000000 (64-bit, non-prefetchable) [size=1M] Capabilities: [50] Power Management version 3 Capabilities: [80] Vendor Specific Information: Len=14 <?> Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+ Kernel driver in use: sof-audio-pci-intel-tgl Kernel modules: snd_hda_intel, snd_sof_pci_intel_tgl 0000:00:1f.4 SMBus: Intel Corporation Tiger Lake-LP SMBus Controller (rev 30) Subsystem: Hewlett-Packard Company Device 89db Flags: medium devsel, IRQ 16, IOMMU group 15 Memory at 603f29c000 (64-bit, non-prefetchable) [size=256] I/O ports at efa0 [size=32] Kernel driver in use: i801_smbus Kernel modules: i2c_i801 0000:00:1f.5 Serial bus controller: Intel Corporation Tiger Lake-LP SPI Controller (rev 30) Subsystem: Hewlett-Packard Company Device 89db Flags: fast devsel, IOMMU group 15 Memory at 68400000 (32-bit, non-prefetchable) [size=4K] 0000:2c:00.0 PCI bridge: Intel Corporation Thunderbolt 4 Bridge [Goshen Ridge 2020] (rev 03) (prog-if 00 [Normal decode]) Physical Slot: 0-1 Flags: bus master, fast devsel, latency 0, IRQ 16, IOMMU group 17 Bus: primary=2c, secondary=2d, subordinate=56, sec-latency=0 I/O behind bridge: 00005000-00005fff [size=4K] Memory behind bridge: 6c000000-781fffff [size=194M] Prefetchable memory behind bridge: 0000006000000000-000000601bffffff [size=448M] Capabilities: [80] Power Management version 3 Capabilities: [88] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [ac] Subsystem: Intel Corporation Device 0000 Capabilities: [c0] Express Upstream Port, MSI 00 Capabilities: [50] Capability ID 0x15 [0000] Capabilities: [100] Device Serial Number c2-d5-04-18-86-b7-d0-00 Capabilities: [200] Advanced Error Reporting Capabilities: [300] Virtual Channel Capabilities: [400] Power Budgeting <?> Capabilities: [500] Vendor Specific Information: ID=1234 Rev=1 Len=100 <?> Capabilities: [600] Vendor Specific Information: ID=8086 Rev=2 Len=04c <?> Capabilities: [700] Secondary PCI Express Capabilities: [800] Latency Tolerance Reporting Capabilities: [a00] L1 PM Substates Capabilities: [b00] Precision Time Measurement Kernel driver in use: pcieport 0000:2d:00.0 PCI bridge: Intel Corporation Thunderbolt 4 Bridge [Goshen Ridge 2020] (rev 03) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0, IRQ 16, IOMMU group 18 Bus: primary=2d, secondary=2e, subordinate=2e, sec-latency=0 I/O behind bridge: 00005000-00005fff [size=4K] Memory behind bridge: 6c000000-6c0fffff [size=1M] Prefetchable memory behind bridge: 0000006000000000-00000060000fffff [size=1M] Capabilities: [80] Power Management version 3 Capabilities: [88] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [ac] Subsystem: Intel Corporation Device 0000 Capabilities: [c0] Express Downstream Port (Slot+), MSI 00 Capabilities: [50] Capability ID 0x15 [0000] Capabilities: [100] Device Serial Number c2-d5-04-18-86-b7-d0-00 Capabilities: [200] Advanced Error Reporting Capabilities: [300] Virtual Channel Capabilities: [400] Power Budgeting <?> Capabilities: [500] Vendor Specific Information: ID=1234 Rev=1 Len=100 <?> Capabilities: [600] Vendor Specific Information: ID=8086 Rev=2 Len=04c <?> Capabilities: [700] Secondary PCI Express Capabilities: [900] Access Control Services Capabilities: [c00] Designated Vendor-Specific: Vendor=8086 ID=0006 Rev=0 Len=16 <?> Kernel driver in use: pcieport 0000:2d:01.0 PCI bridge: Intel Corporation Thunderbolt 4 Bridge [Goshen Ridge 2020] (rev 03) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0, IRQ 198, IOMMU group 19 Bus: primary=2d, secondary=2f, subordinate=3b, sec-latency=0 I/O behind bridge: [disabled] Memory behind bridge: 6c100000-700fffff [size=64M] Prefetchable memory behind bridge: 0000006000100000-00000060095fffff [size=149M] Capabilities: [80] Power Management version 3 Capabilities: [88] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [ac] Subsystem: Intel Corporation Device 0000 Capabilities: [c0] Express Downstream Port (Slot+), MSI 00 Capabilities: [50] Capability ID 0x15 [0000] Capabilities: [100] Device Serial Number c2-d5-04-18-86-b7-d0-00 Capabilities: [200] Advanced Error Reporting Capabilities: [300] Virtual Channel Capabilities: [400] Power Budgeting <?> Capabilities: [500] Vendor Specific Information: ID=1234 Rev=1 Len=100 <?> Capabilities: [600] Vendor Specific Information: ID=8086 Rev=2 Len=04c <?> Capabilities: [700] Secondary PCI Express Capabilities: [900] Access Control Services Capabilities: [c00] Designated Vendor-Specific: Vendor=8086 ID=0006 Rev=0 Len=16 <?> Kernel driver in use: pcieport 0000:2d:02.0 PCI bridge: Intel Corporation Thunderbolt 4 Bridge [Goshen Ridge 2020] (rev 03) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0, IRQ 199, IOMMU group 20 Bus: primary=2d, secondary=3c, subordinate=48, sec-latency=0 I/O behind bridge: [disabled] Memory behind bridge: 70100000-740fffff [size=64M] Prefetchable memory behind bridge: 0000006009600000-0000006012afffff [size=149M] Capabilities: [80] Power Management version 3 Capabilities: [88] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [ac] Subsystem: Intel Corporation Device 0000 Capabilities: [c0] Express Downstream Port (Slot+), MSI 00 Capabilities: [50] Capability ID 0x15 [0000] Capabilities: [100] Device Serial Number c2-d5-04-18-86-b7-d0-00 Capabilities: [200] Advanced Error Reporting Capabilities: [300] Virtual Channel Capabilities: [400] Power Budgeting <?> Capabilities: [500] Vendor Specific Information: ID=1234 Rev=1 Len=100 <?> Capabilities: [600] Vendor Specific Information: ID=8086 Rev=2 Len=04c <?> Capabilities: [700] Secondary PCI Express Capabilities: [900] Access Control Services Capabilities: [c00] Designated Vendor-Specific: Vendor=8086 ID=0006 Rev=0 Len=16 <?> Kernel driver in use: pcieport 0000:2d:03.0 PCI bridge: Intel Corporation Thunderbolt 4 Bridge [Goshen Ridge 2020] (rev 03) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0, IRQ 200, IOMMU group 21 Bus: primary=2d, secondary=49, subordinate=55, sec-latency=0 I/O behind bridge: [disabled] Memory behind bridge: 74100000-780fffff [size=64M] Prefetchable memory behind bridge: 0000006012b00000-000000601befffff [size=148M] Capabilities: [80] Power Management version 3 Capabilities: [88] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [ac] Subsystem: Intel Corporation Device 0000 Capabilities: [c0] Express Downstream Port (Slot+), MSI 00 Capabilities: [50] Capability ID 0x15 [0000] Capabilities: [100] Device Serial Number c2-d5-04-18-86-b7-d0-00 Capabilities: [200] Advanced Error Reporting Capabilities: [300] Virtual Channel Capabilities: [400] Power Budgeting <?> Capabilities: [500] Vendor Specific Information: ID=1234 Rev=1 Len=100 <?> Capabilities: [600] Vendor Specific Information: ID=8086 Rev=2 Len=04c <?> Capabilities: [700] Secondary PCI Express Capabilities: [900] Access Control Services Capabilities: [c00] Designated Vendor-Specific: Vendor=8086 ID=0006 Rev=0 Len=16 <?> Kernel driver in use: pcieport 0000:2d:04.0 PCI bridge: Intel Corporation Thunderbolt 4 Bridge [Goshen Ridge 2020] (rev 03) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0, IRQ 16, IOMMU group 22 Bus: primary=2d, secondary=56, subordinate=56, sec-latency=0 I/O behind bridge: [disabled] Memory behind bridge: 78100000-781fffff [size=1M] Prefetchable memory behind bridge: 000000601bf00000-000000601bffffff [size=1M] Capabilities: [80] Power Management version 3 Capabilities: [88] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [ac] Subsystem: Intel Corporation Device 0000 Capabilities: [c0] Express Downstream Port (Slot+), MSI 00 Capabilities: [50] Capability ID 0x15 [0000] Capabilities: [100] Device Serial Number c2-d5-04-18-86-b7-d0-00 Capabilities: [200] Advanced Error Reporting Capabilities: [300] Virtual Channel Capabilities: [400] Power Budgeting <?> Capabilities: [500] Vendor Specific Information: ID=1234 Rev=1 Len=100 <?> Capabilities: [600] Vendor Specific Information: ID=8086 Rev=2 Len=04c <?> Capabilities: [700] Secondary PCI Express Capabilities: [900] Access Control Services Capabilities: [c00] Designated Vendor-Specific: Vendor=8086 ID=0006 Rev=0 Len=16 <?> Kernel driver in use: pcieport 0000:57:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader (rev 01) DeviceName: Realtek PCIE CardReader Subsystem: Hewlett-Packard Company Device 89db Flags: bus master, fast devsel, latency 0, IRQ 149, IOMMU group 16 Memory at 86300000 (32-bit, non-prefetchable) [size=4K] Capabilities: [80] Power Management version 3 Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [b0] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [148] Device Serial Number 00-00-00-01-00-4c-e0-00 Capabilities: [158] Latency Tolerance Reporting Capabilities: [160] L1 PM Substates Kernel driver in use: rtsx_pci Kernel modules: rtsx_pci 10000:e0:1d.0 PCI bridge: Intel Corporation Tiger Lake-LP PCI Express Root Port #9 (rev 30) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0, IRQ 148, IOMMU group 7 Bus: primary=00, secondary=e1, subordinate=e1, sec-latency=0 I/O behind bridge: [disabled] Memory behind bridge: 6a000000-6a0fffff [size=1M] Prefetchable memory behind bridge: [disabled] Capabilities: [40] Express Root Port (Slot-), MSI 00 Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [90] Subsystem: Hewlett-Packard Company Device 89db Capabilities: [a0] Power Management version 3 Capabilities: [100] Advanced Error Reporting Capabilities: [220] Access Control Services Capabilities: [150] Precision Time Measurement Capabilities: [200] L1 PM Substates Capabilities: [a30] Secondary PCI Express Capabilities: [a00] Downstream Port Containment Kernel driver in use: pcieport 10000:e1:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller SM981/PM981/PM983 (prog-if 02 [NVM Express]) Subsystem: Samsung Electronics Co Ltd SSD 970 EVO Plus 1TB Flags: bus master, fast devsel, latency 0, IRQ -2147483648, NUMA node 0, IOMMU group 7 Memory at 6a000000 (64-bit, non-prefetchable) [size=16K] Capabilities: [40] Power Management version 3 Capabilities: [50] MSI: Enable- Count=1/32 Maskable- 64bit+ Capabilities: [70] Express Endpoint, MSI 00 Capabilities: [b0] MSI-X: Enable+ Count=33 Masked- Capabilities: [100] Advanced Error Reporting Capabilities: [148] Device Serial Number 00-00-00-00-00-00-00-00 Capabilities: [158] Power Budgeting <?> Capabilities: [168] Secondary PCI Express Capabilities: [188] Latency Tolerance Reporting Capabilities: [190] L1 PM Substates Kernel driver in use: nvme Kernel modules: nvme
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