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acpi, nfit: Add function to look up nvdimm device and provide SMBIOS handle

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EDAC driver needs to look up attributes of NVDIMMs provided in SMBIOS.

Provide a function that looks up an acpi_nfit_memory_map from a device
handle (node/socket/mc/channel/dimm) and returns the SMBIOS handle.
Also pass back the "flags" so we can see if the NVDIMM is OK.

Acked-by: Dan Williams <[email protected]>
Signed-off-by: Tony Luck <[email protected]>
Cc: "Rafael J. Wysocki" <[email protected]>
Cc: Aristeu Rozanski <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: Erik Schmauss <[email protected]>
Cc: Jean Delvare <[email protected]>
Cc: Len Brown <[email protected]>
Cc: Mauro Carvalho Chehab <[email protected]>
Cc: Qiuxu Zhuo <[email protected]>
Cc: Robert Moore <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Borislav Petkov <[email protected]>
This commit is contained in:
Tony Luck 2018-03-12 11:24:28 -07:00 • committed by Borislav Petkov
commit 23222f8f8d
2 changed files with 45 additions and 0 deletions
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18
include/acpi/nfit.h Normal file
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@ -0,0 +1,18 @@
/*
* SPDX-License-Identifier: GPL-2.0
* Copyright (C) 2018 Intel Corporation
*/
#ifndef __ACPI_NFIT_H
#define __ACPI_NFIT_H
#if IS_ENABLED(CONFIG_ACPI_NFIT)
int nfit_get_smbios_id(u32 device_handle, u16 *flags);
#else
static inline int nfit_get_smbios_id(u32 device_handle, u16 *flags)
{
return -EOPNOTSUPP;
}
#endif
#endif /* __ACPI_NFIT_H */