Combine all queued EDAC changes for submission into v6.2:

* ras/edac-ghes:
  EDAC/igen6: Return the correct error type when not the MC owner
  apei/ghes: Use xchg_release() for updating new cache slot instead of cmpxchg()
  EDAC: Check for GHES preference in the chipset-specific EDAC drivers
  EDAC/ghes: Make ghes_edac a proper module
  EDAC/ghes: Prepare to make ghes_edac a proper module
  EDAC/ghes: Add a notifier for reporting memory errors
  efi/cper: Export several helpers for ghes_edac to use

* ras/edac-misc:
  EDAC/i10nm: fix refcount leak in pci_get_dev_wrapper()
  EDAC/i5400: Fix typo in comment: vaious -> various
  EDAC/mc_sysfs: Increase legacy channel support to 12
  MAINTAINERS: Make Mauro EDAC reviewer
  MAINTAINERS: Make Manivannan Sadhasivam the maintainer of qcom_edac
  EDAC/i5000: Mark as BROKEN

Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>

As the comment of pci_get_domain_bus_and_slot() says, it returns
a PCI device with refcount incremented, so it doesn't need to
call an extra pci_dev_get() in pci_get_dev_wrapper(), and the PCI
device needs to be put in the error path.

Fixes: d4dc89d069aa ("EDAC, i10nm: Add a driver for Intel 10nm server processors")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/r/20221128065512.3572550-1-yangyingliang@huawei.com

Fix spelling typo in comment: vaious -> various.

  [ bp: Massage. ]

Reported-by: k2ci <kernel-bot@kylinos.cn>
Signed-off-by: Chen Zhang <chenzhang@kylinos.cn>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20221102081248.45694-1-chenzhang@kylinos.cn

Newer AMD systems, such as Genoa, can support up to 12 channels per EDAC
"mc" device. These are detected by the device's EDAC module, and the
current EDAC interface is properly enumerated. However, the legacy EDAC
sysfs interface provides device attributes only for channels 0 to 7.
Therefore, channels 8 to 11 will not be visible in the legacy interface.
This was overlooked in the initial support for AMD Genoa.

Add additional device attributes so that up to 12 channels are visible
in the legacy EDAC sysfs interface.

Fixes: e2be5955a886 ("EDAC/amd64: Add support for AMD Family 19h Models 10h-1Fh and A0h-AFh")
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20221018153630.14664-1-yazen.ghannam@amd.com

Return -EBUSY instead of -ENODEV just like the other EDAC drivers do.

  [ bp: Rewrite text. ]

Signed-off-by: Jia He <justin.he@arm.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20221018082214.569504-8-justin.he@arm.com

Call ghes_get_devices() to check whether ghes_edac should be used on the
platform where it is preferred over the corresponding chipset-specific
EDAC driver.

Unlike the existing edac_get_owner() check, the ghes_get_devices() check
works independent to the module_init ordering.

  [ bp: Massage. ]

Suggested-by: Toshi Kani <toshi.kani@hpe.com>
Signed-off-by: Jia He <justin.he@arm.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20221010023559.69655-6-justin.he@arm.com

Commit

  dc4e8c07e9e2 ("ACPI: APEI: explicit init of HEST and GHES in apci_init()")

introduced a bug leading to ghes_edac_register() to be invoked before
edac_init(). Because at that time the bus "edac" hadn't been even
registered, this created sysfs nodes as /devices/mc0 instead of
/sys/devices/system/edac/mc/mc0 on an Ampere eMag server.

Fix this by turning ghes_edac into a proper module.

The list of GHES devices returned is not protected from being modified
concurrently but it is pretty static as it gets created only during GHES
init and latter is not a module so...

  [ bp: Massage. ]

Fixes: dc4e8c07e9e2 ("ACPI: APEI: explicit init of HEST and GHES in apci_init()")
Co-developed-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Jia He <justin.he@arm.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20221010023559.69655-5-justin.he@arm.com

To make ghes_edac a proper module, prepare to decouple its dependencies
from GHES.

Move the ghes_edac.force_load parameter to ghes.c in order to
properly control whether ghes_edac should be force-loaded: In
ghes_edac_register() it is too late to set the module flag.

Introduce a helper ghes_get_devices(), which returns the list of GHES
devices which got probed when the platform-check passes on the system.

The previous force_load check is not needed in ghes_edac_unregister()
since it will be checked in the module's init function of ghes_edac
later.

  [ bp: Massage. ]

Suggested-by: Toshi Kani <toshi.kani@hpe.com>
Suggested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Jia He <justin.he@arm.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20221010023559.69655-4-justin.he@arm.com

In order to make it a proper module and disentangle it from facilities,
add a notifier for reporting memory errors. Use an atomic notifier
because calls sites like ghes_proc_in_irq() run in interrupt context.

  [ bp: Massage commit message. ]

Suggested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Jia He <justin.he@arm.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20221010023559.69655-3-justin.he@arm.com

i5000_edac supports very old hardware which isn't available and it's
been broken for single/dual channel for many years without anyone
noticing. Marking as BROKEN.

Signed-off-by: Aristeu Rozanski <aris@redhat.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20220921181009.oxytvicy6sry6it7@redhat.com