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Wed, 01 Jul 2026 06:04:32 -0700 (PDT) Message-ID: Date: Wed, 1 Jul 2026 15:04:30 +0200 Precedence: bulk X-Mailing-List: linux-edac@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] RAS: Move contents from arch/x86/ras/Kconfig into drivers/ras/Kconfig From: Thomas Huth To: Borislav Petkov , Tony Luck , linux-edac@vger.kernel.org Cc: Thomas Gleixner , Ingo Molnar , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , linux-kernel@vger.kernel.org References: <20260410122748.29978-1-thuth@redhat.com> Content-Language: en-US Autocrypt: addr=thuth@redhat.com; keydata= xsFNBFH7eUwBEACzyOXKU+5Pcs6wNpKzrlJwzRl3VGZt95VCdb+FgoU9g11m7FWcOafrVRwU yYkTm9+7zBUc0sW5AuPGR/dp3pSLX/yFWsA/UB4nJsHqgDvDU7BImSeiTrnpMOTXb7Arw2a2 4CflIyFqjCpfDM4MuTmzTjXq4Uov1giGE9X6viNo1pxyEpd7PanlKNnf4PqEQp06X4IgUacW tSGj6Gcns1bCuHV8OPWLkf4hkRnu8hdL6i60Yxz4E6TqlrpxsfYwLXgEeswPHOA6Mn4Cso9O 0lewVYfFfsmokfAVMKWzOl1Sr0KGI5T9CpmRfAiSHpthhHWnECcJFwl72NTi6kUcUzG4se81 O6n9d/kTj7pzTmBdfwuOZ0YUSqcqs0W+l1NcASSYZQaDoD3/SLk+nqVeCBB4OnYOGhgmIHNW 0CwMRO/GK+20alxzk//V9GmIM2ACElbfF8+Uug3pqiHkVnKqM7W9/S1NH2qmxB6zMiJUHlTH gnVeZX0dgH27mzstcF786uPcdEqS0KJuxh2kk5IvUSL3Qn3ZgmgdxBMyCPciD/1cb7/Ahazr 3ThHQXSHXkH/aDXdfLsKVuwDzHLVSkdSnZdt5HHh75/NFHxwaTlydgfHmFFwodK8y/TjyiGZ zg2Kje38xnz8zKn9iesFBCcONXS7txENTzX0z80WKBhK+XSFJwARAQABzR5UaG9tYXMgSHV0 aCA8dGh1dGhAcmVkaGF0LmNvbT7CwXgEEwECACIFAlVgX6oCGwMGCwkIBwMCBhUIAgkKCwQW AgMBAh4BAheAAAoJEC7Z13T+cC21EbIP/ii9cvT2HHGbFRl8HqGT6+7Wkb+XLMqJBMAIGiQK QIP3xk1HPTsLfVG0ao4hy/oYkGNOP8+ubLnZen6Yq3zAFiMhQ44lvgigDYJo3Ve59gfe99KX EbtB+X95ODARkq0McR6OAsPNJ7gpEUzfkQUUJTXRDQXfG/FX303Gvk+YU0spm2tsIKPl6AmV 1CegDljzjycyfJbk418MQmMu2T82kjrkEofUO2a24ed3VGC0/Uz//XCR2ZTo+vBoBUQl41BD eFFtoCSrzo3yPFS+w5fkH9NT8ChdpSlbNS32NhYQhJtr9zjWyFRf0Zk+T/1P7ECn6gTEkp5k ofFIA4MFBc/fXbaDRtBmPB0N9pqTFApIUI4vuFPPO0JDrII9dLwZ6lO9EKiwuVlvr1wwzsgq zJTPBU3qHaUO4d/8G+gD7AL/6T4zi8Jo/GmjBsnYaTzbm94lf0CjXjsOX3seMhaE6WAZOQQG tZHAO1kAPWpaxne+wtgMKthyPLNwelLf+xzGvrIKvLX6QuLoWMnWldu22z2ICVnLQChlR9d6 WW8QFEpo/FK7omuS8KvvopFcOOdlbFMM8Y/8vBgVMSsK6fsYUhruny/PahprPbYGiNIhKqz7 UvgyZVl4pBFjTaz/SbimTk210vIlkDyy1WuS8Zsn0htv4+jQPgo9rqFE4mipJjy/iboDzsFN BFH7eUwBEAC2nzfUeeI8dv0C4qrfCPze6NkryUflEut9WwHhfXCLjtvCjnoGqFelH/PE9NF4 4VPSCdvD1SSmFVzu6T9qWdcwMSaC+e7G/z0/AhBfqTeosAF5XvKQlAb9ZPkdDr7YN0a1XDfa +NgA+JZB4ROyBZFFAwNHT+HCnyzy0v9Sh3BgJJwfpXHH2l3LfncvV8rgFv0bvdr70U+On2XH 5bApOyW1WpIG5KPJlDdzcQTyptOJ1dnEHfwnABEfzI3dNf63rlxsGouX/NFRRRNqkdClQR3K gCwciaXfZ7ir7fF0u1N2UuLsWA8Ei1JrNypk+MRxhbvdQC4tyZCZ8mVDk+QOK6pyK2f4rMf/ WmqxNTtAVmNuZIwnJdjRMMSs4W4w6N/bRvpqtykSqx7VXcgqtv6eqoDZrNuhGbekQA0sAnCJ VPArerAZGArm63o39me/bRUQeQVSxEBmg66yshF9HkcUPGVeC4B0TPwz+HFcVhheo6hoJjLq knFOPLRj+0h+ZL+D0GenyqD3CyuyeTT5dGcNU9qT74bdSr20k/CklvI7S9yoQje8BeQAHtdV cvO8XCLrpGuw9SgOS7OP5oI26a0548M4KldAY+kqX6XVphEw3/6U1KTf7WxW5zYLTtadjISB X9xsRWSU+Yqs3C7oN5TIPSoj9tXMoxZkCIHWvnqGwZ7JhwARAQABwsFfBBgBAgAJBQJR+3lM AhsMAAoJEC7Z13T+cC21hPAQAIsBL9MdGpdEpvXs9CYrBkd6tS9mbaSWj6XBDfA1AEdQkBOn ZH1Qt7HJesk+qNSnLv6+jP4VwqK5AFMrKJ6IjE7jqgzGxtcZnvSjeDGPF1h2CKZQPpTw890k fy18AvgFHkVk2Oylyexw3aOBsXg6ukN44vIFqPoc+YSU0+0QIdYJp/XFsgWxnFIMYwDpxSHS 5fdDxUjsk3UBHZx+IhFjs2siVZi5wnHIqM7eK9abr2cK2weInTBwXwqVWjsXZ4tq5+jQrwDK cvxIcwXdUTLGxc4/Z/VRH1PZSvfQxdxMGmNTGaXVNfdFZjm4fz0mz+OUi6AHC4CZpwnsliGV ODqwX8Y1zic9viSTbKS01ZNp175POyWViUk9qisPZB7ypfSIVSEULrL347qY/hm9ahhqmn17 Ng255syASv3ehvX7iwWDfzXbA0/TVaqwa1YIkec+/8miicV0zMP9siRcYQkyTqSzaTFBBmqD oiT+z+/E59qj/EKfyce3sbC9XLjXv3mHMrq1tKX4G7IJGnS989E/fg6crv6NHae9Ckm7+lSs IQu4bBP2GxiRQ+NV3iV/KU3ebMRzqIC//DCOxzQNFNJAKldPe/bKZMCxEqtVoRkuJtNdp/5a yXFZ6TfE1hGKrDBYAm4vrnZ4CXFSBDllL59cFFOJCkn4Xboj/aVxxJxF30bn In-Reply-To: <20260410122748.29978-1-thuth@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 10/04/2026 14.27, Thomas Huth wrote: > From: Thomas Huth > > Commit bc8e80d56c1ec ("x86/mce: Merge mce_amd_inj into mce-inject") > removed the last .c file from arch/x86/ras/, so that there is now > only a lonely Kconfig file in this folder. Its config switches > CONFIG_RAS_CEC and CONFIG_RAS_CEC_DEBUG are only used in code that > resides in drivers/ras/, so those Kconfig switches should better > reside in drivers/ras/, too. Thus move the contents of arch/x86/ras/ > into drivers/ras/Kconfig now. > > Signed-off-by: Thomas Huth > --- > arch/x86/ras/Kconfig | 23 ----------------------- > drivers/ras/Kconfig | 24 +++++++++++++++++++++++- > 2 files changed, 23 insertions(+), 24 deletions(-) > delete mode 100644 arch/x86/ras/Kconfig > > diff --git a/arch/x86/ras/Kconfig b/arch/x86/ras/Kconfig > deleted file mode 100644 > index 7488c715427e5..0000000000000 > --- a/arch/x86/ras/Kconfig > +++ /dev/null > @@ -1,23 +0,0 @@ > -# SPDX-License-Identifier: GPL-2.0 > -config RAS_CEC > - bool "Correctable Errors Collector" > - depends on X86_MCE && MEMORY_FAILURE && DEBUG_FS > - help > - This is a small cache which collects correctable memory errors per 4K > - page PFN and counts their repeated occurrence. Once the counter for a > - PFN overflows, we try to soft-offline that page as we take it to mean > - that it has reached a relatively high error count and would probably > - be best if we don't use it anymore. > - > - Bear in mind that this is absolutely useless if your platform doesn't > - have ECC DIMMs and doesn't have DRAM ECC checking enabled in the BIOS. > - > -config RAS_CEC_DEBUG > - bool "CEC debugging machinery" > - default n > - depends on RAS_CEC > - help > - Add extra files to (debugfs)/ras/cec to test the correctable error > - collector feature. "pfn" is a writable file that allows user to > - simulate an error in a particular page frame. "array" is a read-only > - file that dumps out the current state of all pages logged so far. > diff --git a/drivers/ras/Kconfig b/drivers/ras/Kconfig > index fc4f4bb94a4c6..070e17639faa3 100644 > --- a/drivers/ras/Kconfig > +++ b/drivers/ras/Kconfig > @@ -31,7 +31,29 @@ menuconfig RAS > > if RAS > > -source "arch/x86/ras/Kconfig" > +config RAS_CEC > + bool "Correctable Errors Collector" > + depends on X86_MCE && MEMORY_FAILURE && DEBUG_FS > + help > + This is a small cache which collects correctable memory errors per 4K > + page PFN and counts their repeated occurrence. Once the counter for a > + PFN overflows, we try to soft-offline that page as we take it to mean > + that it has reached a relatively high error count and would probably > + be best if we don't use it anymore. > + > + Bear in mind that this is absolutely useless if your platform doesn't > + have ECC DIMMs and doesn't have DRAM ECC checking enabled in the BIOS. > + > +config RAS_CEC_DEBUG > + bool "CEC debugging machinery" > + default n > + depends on RAS_CEC > + help > + Add extra files to (debugfs)/ras/cec to test the correctable error > + collector feature. "pfn" is a writable file that allows user to > + simulate an error in a particular page frame. "array" is a read-only > + file that dumps out the current state of all pages logged so far. > + > source "drivers/ras/amd/atl/Kconfig" > > config RAS_FMPM Friendly ping? Thomas