diff options
| author | Felix Held <felix-coreboot@felixheld.de> | 2023-02-06 15:19:11 +0100 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2023-02-08 15:07:45 +0000 |
| commit | 6a6ac1e0b929a47aedcff41420990cd700e22d13 (patch) | |
| tree | 669b654a6876be7ae88045783bda9254b55e457e /src/soc/intel/denverton_ns | |
| parent | 2fe5d3e5a5982169aeac86188949a301ab9ed0aa (diff) | |
arch/x86/cpu: introduce and use device_match_mask
Instead of always doing exact matches between the CPUID read in
identify_cpu and the device entries of the CPU device ID table,
offer the possibility to use a bit mask in the CPUID matching. This
allows covering all steppings of a CPU family/model with one entry and
avoids that case of a missing new stepping causing the CPUs not being
properly initialized.
Some of the CPU device ID tables can now be deduplicated using the
CPUID_ALL_STEPPINGS_MASK define, but that's outside of the scope of this
patch.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I0540b514ca42591c0d3468307a82b5612585f614
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72847
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Diffstat (limited to 'src/soc/intel/denverton_ns')
| -rw-r--r-- | src/soc/intel/denverton_ns/cpu.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/src/soc/intel/denverton_ns/cpu.c b/src/soc/intel/denverton_ns/cpu.c index 8b5fb40e3c..210aefe312 100644 --- a/src/soc/intel/denverton_ns/cpu.c +++ b/src/soc/intel/denverton_ns/cpu.c @@ -122,10 +122,11 @@ static struct device_operations cpu_dev_ops = { }; static const struct cpu_device_id cpu_table[] = { - {X86_VENDOR_INTEL, - CPUID_DENVERTON_A0_A1}, /* Denverton-NS A0/A1 CPUID */ - {X86_VENDOR_INTEL, CPUID_DENVERTON_B0}, /* Denverton-NS B0 CPUID */ - {0, 0}, + /* Denverton-NS A0/A1 CPUID */ + {X86_VENDOR_INTEL, CPUID_DENVERTON_A0_A1, CPUID_EXACT_MATCH_MASK }, + /* Denverton-NS B0 CPUID */ + {X86_VENDOR_INTEL, CPUID_DENVERTON_B0, CPUID_EXACT_MATCH_MASK }, + {0, 0, 0 }, }; static const struct cpu_driver driver __cpu_driver = { |