(Resending as it seems to have been spamfiltered out from the ml; sorry Peter, Jarkko for the duplicate) Hello maintainers, When attempting to setup the TPM 2.0 firmware TPM built into the Dell Inspiron 11 3180, it does not show up in /dev nor does it show up in /sys/class/tpm. An inspection of dmesg shows the following error: [ 6.359382] tpm_crb MSFT0101:00: can't request region for resource [mem 0xe7bba000-0xe7bbdfff] [ 6.359430] tpm_crb: probe of MSFT0101:00 failed with error -16 I have tested both on kernel version 4.17.0-1 and 4.18.0-rc4, both x86_64, and they have shown the same error. Similarly, I have tested with both the 1.1.0 and 1.3.0 versions of the underlying firmware. The Dell Inspiron 11 3180 has the following cpuinfo (trimmed for brevity): processor : 1 vendor_id : AuthenticAMD cpu family : 21 model : 112 model name : AMD A6-9220e RADEON R4, 5 COMPUTE CORES 2C+3G stepping : 0 microcode : 0x6006704 cpu MHz : 1367.077 cache size : 1024 KB physical id : 0 siblings : 2 core id : 1 cpu cores : 2 apicid : 17 initial apicid : 1 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good acc_power nopl nonstop_tsc cpuid extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm perfctr_core perfctr_nb bpext ptsc mwaitx cpb hw_pstate ssbd vmmcall fsgsbase bmi1 avx2 smep bmi2 xsaveopt arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif overflow_recov bugs : fxsave_leak sysret_ss_attrs null_seg spectre_v1 spectre_v2 spec_store_bypass bogomips : 3193.84 TLB size : 1536 4K pages clflush size : 64 cache_alignment : 64 address sizes : 48 bits physical, 48 bits virtual power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro acc_power [13] The ver_linux output: Linux brick 4.18.0-rc4-amd64 #1 SMP Debian 4.18~rc4-1~exp1 (2018-07-12) x86_64 GNU/Linux GNU Make 4.2.1 Binutils 2.31.1 Util-linux 2.32 Mount 2.32 Linux C Library 2.27 Dynamic linker (ldd) 2.27 Procps 3.3.15 Kbd 2.0.4 Console-tools 2.0.4 Sh-utils 8.28 Udev 239 Modules Loaded ac acpi_cpufreq aesni_intel aes_x86_64 af_alg ahci algif_skcipher amdgpu amdkfd ansi_cprng arc4 ath ath3k ath9k ath9k_common ath9k_hw autofs4 battery bluetooth bnep btbcm btintel btrtl btusb button ccp cfg80211 chash crc16 crc32c_generic crc32c_intel crc32_pclmul crct10dif_pclmul cryptd crypto_simd dcdbas dell_laptop dell_rbtn dell_smbios dell_smm_hwmon dell_wmi dell_wmi_descriptor dm_crypt dm_mod drbg drm drm_kms_helper ecb ecdh_generic edac_mce_amd efi_pstore efivarfs efivars ehci_hcd ehci_pci evdev ext4 fam15h_power fat fscrypto fuse ghash_clmulni_intel glue_helper gpu_sched hid i2c_algo_bit i2c_hid i2c_piix4 ip_tables irqbypass jbd2 jitterentropy_rng joydev k10temp kvm kvm_amd libahci libata lp mac80211 mbcache media memstick mmc_core nls_ascii nls_cp437 parport parport_pc pcbc pcspkr ppdev psmouse rfkill rng_core rtsx_usb rtsx_usb_ms rtsx_usb_sdmmc scsi_mod sd_mod serio_raw sg snd snd_hda_codec snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_core snd_hda_intel snd_hwdep snd_pcm snd_timer soundcore sp5100_tco sparse_keymap thermal tpm tpm_crb tpm_tis tpm_tis_core ttm usb_common usbcore uvcvideo vfat video videobuf2_common videobuf2_memops videobuf2_v4l2 videobuf2_vmalloc videodev wmi wmi_bmof xhci_hcd xhci_pci x_tables The ioports, iomem, lspci, and acpidump are located at https://gist.github.com/hlieberman-gov/a718cf4aff8aa701e10eb37162bb943f. I am happy to help debug this however is needed. Sincerely, -- Harlan Lieberman-Berg Defense Digital Service
