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The_Great_Sephiroth
Veteran
Joined: 03 Oct 2014
Posts: 1606
Location: Fayetteville, NC, USA
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 Posted: Fri May 19, 2017 8:34 pm Post subject: Intel driver missing? |
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System Rescue CD has a driver loaded called "hsw_uncore" and I cannot find it in the kernel configuration anywhere. Where is this driver located?
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00:00.0 Host bridge [0600]: Intel Corporation Haswell-ULT DRAM Controller [8086:0a04] (rev 0b)
Subsystem: Dell Haswell-ULT DRAM Controller [1028:05de]
Kernel driver in use: hsw_uncore
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Thanks!
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Ant P.
Watchman
Joined: 18 Apr 2009
Posts: 6920
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| Posted: Fri May 19, 2017 8:54 pm Post subject: |
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The filename listed in "modinfo hsw_uncore" might give a hint to what section it's in.
The only thing with "uncore" in the name I could find is PERF_EVENTS_INTEL_UNCORE, and that doesn't look like the same thing. Probably doesn't hurt to enable though. |
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The_Great_Sephiroth
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Joined: 03 Oct 2014
Posts: 1606
Location: Fayetteville, NC, USA
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| Posted: Fri May 19, 2017 9:02 pm Post subject: |
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It just got strange.
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root@sysresccd /root % modinfo hsw_uncore
modinfo: ERROR: Module hsw_uncore not found.
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I am confused at this point. Seems something always nags at me while building a fresh kernel. Oh well, fun to do.
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Hu
Administrator
Joined: 06 Mar 2007
Posts: 23092
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| Posted: Sat May 20, 2017 3:29 pm Post subject: |
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| git grep hsw_uncore v4.12-rc1 --: | v4.12-rc1:arch/x86/events/intel/uncore_snb.c:648:static struct pci_driver hsw_uncore_pci_driver = {
v4.12-rc1:arch/x86/events/intel/uncore_snb.c:649: .name = "hsw_uncore",
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| git grep 'uncore_snb\.o' v4.12-rc1 --: | | v4.12-rc1:arch/x86/events/intel/Makefile:7:intel-uncore-objs := uncore.o uncore_nhmex.o uncore_snb.o uncore_snbep.o |
| git grep 'intel/' v4.12-rc1 -- '*Makefile*': | | v4.12-rc1:arch/x86/events/Makefile:4:obj-$(CONFIG_CPU_SUP_INTEL) += intel/ |
That suggests CONFIG_CPU_SUP_INTEL is the relevant symbol for you. The first two I found through application of rules about how the kernel build system typically works. That last step required poking around by hand. |
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The_Great_Sephiroth
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Location: Fayetteville, NC, USA
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| Posted: Sun May 21, 2017 4:37 pm Post subject: |
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I found it already, but thanks for the detailed instructions. Hopefully it will help a future user and is good advice should I hit this issue in the future.
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