Commit 4fc2cf1f authored by Justin Ernst's avatar Justin Ernst Committed by Borislav Petkov
Browse files

x86/platform/uv: Add new uv_sysfs platform driver 



Add the uv_sysfs driver to construct a read-only sysfs interface at
/sys/firmware/sgi_uv/ to expose information gathered from UV BIOS. This
information includes:

  * UV Hub descriptions, including physical location
  * Cabling layout between hubs on the fabric
  * PCI topology, including physical location of PCI cards

Together, the information provides a robust physical description of a UV
system, useful for correlating to performance data or performing remote
support.

Signed-off-by: default avatarJustin Ernst <justin.ernst@hpe.com>
Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
Reviewed-by: default avatarSteve Wahl <steve.wahl@hpe.com>
Acked-by: default avatarHans de Goede <hdegoede@redhat.com>
Link: https://lkml.kernel.org/r/20201125175444.279074-4-justin.ernst@hpe.com
parent 9a3c425c

drivers/platform/x86/Kconfig

+11 −0
Original line number Diff line number Diff line
@@ -78,6 +78,17 @@ config HUAWEI_WMI 
	  To compile this driver as a module, choose M here: the module

	  will be called huawei-wmi.



config UV_SYSFS

	tristate "Sysfs structure for UV systems"

	depends on X86_UV

	depends on SYSFS

	help

	  This driver supports a sysfs tree describing information about

	  UV systems at /sys/firmware/sgi_uv/.



	  To compile this driver as a module, choose M here: the module will

	  be called uv_sysfs.



config INTEL_WMI_SBL_FW_UPDATE

	tristate "Intel WMI Slim Bootloader firmware update signaling driver"

	depends on ACPI_WMI

drivers/platform/x86/Makefile

+3 −0
Original line number Diff line number Diff line
@@ -62,6 +62,9 @@ obj-$(CONFIG_HP_WIRELESS) += hp-wireless.o 
obj-$(CONFIG_HP_WMI)		+= hp-wmi.o

obj-$(CONFIG_TC1100_WMI)	+= tc1100-wmi.o



# Hewlett Packard Enterprise

obj-$(CONFIG_UV_SYSFS)       += uv_sysfs.o



# IBM Thinkpad and Lenovo

obj-$(CONFIG_IBM_RTL)		+= ibm_rtl.o

obj-$(CONFIG_IDEAPAD_LAPTOP)	+= ideapad-laptop.o

drivers/platform/x86/uv_sysfs.c

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