diff options
| author | Laveesh Bansal <laveeshb@laveeshbansal.com> | 2026-01-06 15:54:26 +0000 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2026-01-31 07:38:32 -0800 |
| commit | bcd5120ad454c7c5824de1869dc76d62abe8dd0c (patch) | |
| tree | 54f678eca05e129b8338611f1068978532f6cc21 /tools/perf/lib/Documentation/tutorial/git@git.tavy.me:linux.git | |
| parent | f6702aa05acc8986c87ed4c14f70ca1d9f5ab998 (diff) | |
hwmon: (coretemp) Add TjMax for Silvermont through Tremont Atoms
Add fallback TjMax values for Intel Atom processors based on Silvermont,
Airmont, Goldmont, and Tremont microarchitectures. These processors
support MSR_IA32_TEMPERATURE_TARGET for reading TjMax directly, so these
table entries serve as fallback values only when the MSR read fails
(e.g., in some virtualization scenarios).
Added processors and TjMax values:
- INTEL_ATOM_SILVERMONT (0x37, Bay Trail):
- Stepping 9 (E38xx embedded): 110C
- Other steppings (Z37xx tablet): 90C
Stepping identified from Intel E3800 Specification Update.
- INTEL_ATOM_SILVERMONT_MID (0x4a, Merrifield): 90C
- INTEL_ATOM_SILVERMONT_MID2 (0x5a, Moorefield): 90C
- INTEL_ATOM_AIRMONT (0x4c, Cherry Trail): 90C
- INTEL_ATOM_GOLDMONT (0x5c, Apollo Lake): 105C
- INTEL_ATOM_GOLDMONT_PLUS (0x7a, Gemini Lake): 105C
- INTEL_ATOM_TREMONT (0x96, Elkhart Lake): 105C
- INTEL_ATOM_TREMONT_L (0x9c, Jasper Lake): 105C
Not included (MSR reads work reliably, server/specialized chips):
- INTEL_ATOM_SILVERMONT_D (Avoton): Server, Tcase 97C
- INTEL_ATOM_GOLDMONT_D (Denverton): Server, Tcase 82C
- INTEL_ATOM_AIRMONT_NP (Lightning Mountain): Network processor
- INTEL_ATOM_TREMONT_D (Jacobsville): Server
- INTEL_ATOM_GRACEMONT (Alder Lake-N): Very new, MSR works
Reference: Intel datasheets and ARK processor specifications
- Z3600/Z3700 datasheet: https://www.intel.com/content/dam/www/public/us/en/documents/datasheets/atom-z36xxx-z37xxx-datasheet-vol-1.pdf
- E3845 ARK: https://www.intel.com/content/www/us/en/products/sku/78475/intel-atom-processor-e3845-2m-cache-1-91-ghz/specifications.html
- E3800 Spec Update: https://community.intel.com/cipcp26785/attachments/cipcp26785/embedded-atom-processors/4708/1/600834-329901-intel-atom-processor-e3800-product-family-su-rev015.pdf
Signed-off-by: Laveesh Bansal <laveeshb@laveeshbansal.com>
Link: https://lore.kernel.org/r/20260106155426.547872-3-laveeshb@laveeshbansal.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'tools/perf/lib/Documentation/tutorial/git@git.tavy.me:linux.git')
0 files changed, 0 insertions, 0 deletions