dmesg | grep AMD

[    0.000000]   AMD AuthenticAMD
[    0.000000] RAMDISK: 359e0000 - 36ce8000
[    0.000000] ACPI: SRAT c7e9f8a0 00108 (v03 AMD    FAM_F_10 00000002 AMD  00000001)
[    0.000000] ACPI: SSDT c7e9f9f0 00DA4 (v01 A M I  POWERNOW 00000001 AMD  00000001)
[    0.004212] using AMD E400 aware idle routine
[    0.056051] CPU0: AMD Phenom(tm) II X6 1055T Processor stepping 00
[    0.060003] Performance Events: AMD PMU driver.
[    0.148036] System has AMD C1E enabled
[    2.028604] perf: AMD IBS detected (0x0000001f)
[    2.645110] ehci_hcd 0000:00:12.2: applying AMD SB700/SB800/Hudson-2/3 EHCI dummy qh workaround
[    2.645122] QUIRK: Enable AMD PLL fix
[    2.656305] ehci_hcd 0000:00:13.2: applying AMD SB700/SB800/Hudson-2/3 EHCI dummy qh workaround
[    2.668297] ehci_hcd 0000:00:16.2: applying AMD SB700/SB800/Hudson-2/3 EHCI dummy qh workaround
[    2.963279] powernow-k8: Found 1 AMD Phenom(tm) II X6 1055T Processor (6 cpu cores) (version 2.20.00)