block: Clear kernel memory before copying to user

[mirror_ubuntu-bionic-kernel.git] / drivers / edac / Kconfig

#
#	EDAC Kconfig
#	Copyright (c) 2008 Doug Thompson www.softwarebitmaker.com
#	Licensed and distributed under the GPL

config EDAC_ATOMIC_SCRUB
	bool

config EDAC_SUPPORT
	bool

menuconfig EDAC
	tristate "EDAC (Error Detection And Correction) reporting"
	depends on HAS_IOMEM && EDAC_SUPPORT && RAS
	help
	  EDAC is a subsystem along with hardware-specific drivers designed to
	  report hardware errors. These are low-level errors that are reported
	  in the CPU or supporting chipset or other subsystems:
	  memory errors, cache errors, PCI errors, thermal throttling, etc..
	  If unsure, select 'Y'.

	  The mailing list for the EDAC project is linux-edac@vger.kernel.org.

if EDAC

config EDAC_LEGACY_SYSFS
	bool "EDAC legacy sysfs"
	default y
	help
	  Enable the compatibility sysfs nodes.
	  Use 'Y' if your edac utilities aren't ported to work with the newer
	  structures.

config EDAC_DEBUG
	bool "Debugging"
	select DEBUG_FS
	help
	  This turns on debugging information for the entire EDAC subsystem.
	  You do so by inserting edac_module with "edac_debug_level=x." Valid
	  levels are 0-4 (from low to high) and by default it is set to 2.
	  Usually you should select 'N' here.

config EDAC_DECODE_MCE
	tristate "Decode MCEs in human-readable form (only on AMD for now)"
	depends on CPU_SUP_AMD && X86_MCE_AMD
	default y
	---help---
	  Enable this option if you want to decode Machine Check Exceptions
	  occurring on your machine in human-readable form.

	  You should definitely say Y here in case you want to decode MCEs
	  which occur really early upon boot, before the module infrastructure
	  has been initialized.

config EDAC_GHES
	bool "Output ACPI APEI/GHES BIOS detected errors via EDAC"
	depends on ACPI_APEI_GHES && (EDAC=y)
	help
	  Not all machines support hardware-driven error report. Some of those
	  provide a BIOS-driven error report mechanism via ACPI, using the
	  APEI/GHES driver. By enabling this option, the error reports provided
	  by GHES are sent to userspace via the EDAC API.

	  When this option is enabled, it will disable the hardware-driven
	  mechanisms, if a GHES BIOS is detected, entering into the
	  "Firmware First" mode.

	  It should be noticed that keeping both GHES and a hardware-driven
	  error mechanism won't work well, as BIOS will race with OS, while
	  reading the error registers. So, if you want to not use "Firmware
	  first" GHES error mechanism, you should disable GHES either at
	  compilation time or by passing "ghes.disable=1" Kernel parameter
	  at boot time.

	  In doubt, say 'Y'.

config EDAC_AMD64
	tristate "AMD64 (Opteron, Athlon64)"
	depends on AMD_NB && EDAC_DECODE_MCE
	help
	  Support for error detection and correction of DRAM ECC errors on
	  the AMD64 families (>= K8) of memory controllers.

config EDAC_AMD64_ERROR_INJECTION
	bool "Sysfs HW Error injection facilities"
	depends on EDAC_AMD64
	help
	  Recent Opterons (Family 10h and later) provide for Memory Error
	  Injection into the ECC detection circuits. The amd64_edac module
	  allows the operator/user to inject Uncorrectable and Correctable
	  errors into DRAM.

	  When enabled, in each of the respective memory controller directories
	  (/sys/devices/system/edac/mc/mcX), there are 3 input files:

	  - inject_section (0..3, 16-byte section of 64-byte cacheline),
	  - inject_word (0..8, 16-bit word of 16-byte section),
	  - inject_ecc_vector (hex ecc vector: select bits of inject word)

	  In addition, there are two control files, inject_read and inject_write,
	  which trigger the DRAM ECC Read and Write respectively.

config EDAC_AMD76X
	tristate "AMD 76x (760, 762, 768)"
	depends on PCI && X86_32
	help
	  Support for error detection and correction on the AMD 76x
	  series of chipsets used with the Athlon processor.

config EDAC_E7XXX
	tristate "Intel e7xxx (e7205, e7500, e7501, e7505)"
	depends on PCI && X86_32
	help
	  Support for error detection and correction on the Intel
	  E7205, E7500, E7501 and E7505 server chipsets.

config EDAC_E752X
	tristate "Intel e752x (e7520, e7525, e7320) and 3100"
	depends on PCI && X86
	help
	  Support for error detection and correction on the Intel
	  E7520, E7525, E7320 server chipsets.

config EDAC_I82443BXGX
	tristate "Intel 82443BX/GX (440BX/GX)"
	depends on PCI && X86_32
	depends on BROKEN
	help
	  Support for error detection and correction on the Intel
	  82443BX/GX memory controllers (440BX/GX chipsets).

config EDAC_I82875P
	tristate "Intel 82875p (D82875P, E7210)"
	depends on PCI && X86_32
	help
	  Support for error detection and correction on the Intel
	  DP82785P and E7210 server chipsets.

config EDAC_I82975X
	tristate "Intel 82975x (D82975x)"
	depends on PCI && X86
	help
	  Support for error detection and correction on the Intel
	  DP82975x server chipsets.

config EDAC_I3000
	tristate "Intel 3000/3010"
	depends on PCI && X86
	help
	  Support for error detection and correction on the Intel
	  3000 and 3010 server chipsets.

config EDAC_I3200
	tristate "Intel 3200"
	depends on PCI && X86
	help
	  Support for error detection and correction on the Intel
	  3200 and 3210 server chipsets.

config EDAC_IE31200
	tristate "Intel e312xx"
	depends on PCI && X86
	help
	  Support for error detection and correction on the Intel
	  E3-1200 based DRAM controllers.

config EDAC_X38
	tristate "Intel X38"
	depends on PCI && X86
	help
	  Support for error detection and correction on the Intel
	  X38 server chipsets.

config EDAC_I5400
	tristate "Intel 5400 (Seaburg) chipsets"
	depends on PCI && X86
	help
	  Support for error detection and correction the Intel
	  i5400 MCH chipset (Seaburg).

config EDAC_I7CORE
	tristate "Intel i7 Core (Nehalem) processors"
	depends on PCI && X86 && X86_MCE_INTEL
	help
	  Support for error detection and correction the Intel
	  i7 Core (Nehalem) Integrated Memory Controller that exists on
	  newer processors like i7 Core, i7 Core Extreme, Xeon 35xx
	  and Xeon 55xx processors.

config EDAC_I82860
	tristate "Intel 82860"
	depends on PCI && X86_32
	help
	  Support for error detection and correction on the Intel
	  82860 chipset.

config EDAC_R82600
	tristate "Radisys 82600 embedded chipset"
	depends on PCI && X86_32
	help
	  Support for error detection and correction on the Radisys
	  82600 embedded chipset.

config EDAC_I5000
	tristate "Intel Greencreek/Blackford chipset"
	depends on X86 && PCI
	help
	  Support for error detection and correction the Intel
	  Greekcreek/Blackford chipsets.

config EDAC_I5100
	tristate "Intel San Clemente MCH"
	depends on X86 && PCI
	help
	  Support for error detection and correction the Intel
	  San Clemente MCH.

config EDAC_I7300
	tristate "Intel Clarksboro MCH"
	depends on X86 && PCI
	help
	  Support for error detection and correction the Intel
	  Clarksboro MCH (Intel 7300 chipset).

config EDAC_SBRIDGE
	tristate "Intel Sandy-Bridge/Ivy-Bridge/Haswell Integrated MC"
	depends on PCI && X86_64 && X86_MCE_INTEL && PCI_MMCONFIG
	help
	  Support for error detection and correction the Intel
	  Sandy Bridge, Ivy Bridge and Haswell Integrated Memory Controllers.

config EDAC_SKX
	tristate "Intel Skylake server Integrated MC"
	depends on PCI && X86_64 && X86_MCE_INTEL && PCI_MMCONFIG
	help
	  Support for error detection and correction the Intel
	  Skylake server Integrated Memory Controllers.

config EDAC_PND2
	tristate "Intel Pondicherry2"
	depends on PCI && X86_64 && X86_MCE_INTEL
	help
	  Support for error detection and correction on the Intel
	  Pondicherry2 Integrated Memory Controller. This SoC IP is
	  first used on the Apollo Lake platform and Denverton
	  micro-server but may appear on others in the future.

config EDAC_MPC85XX
	tristate "Freescale MPC83xx / MPC85xx"
	depends on FSL_SOC
	help
	  Support for error detection and correction on the Freescale
	  MPC8349, MPC8560, MPC8540, MPC8548, T4240

config EDAC_LAYERSCAPE
	tristate "Freescale Layerscape DDR"
	depends on ARCH_LAYERSCAPE
	help
	  Support for error detection and correction on Freescale memory
	  controllers on Layerscape SoCs.

config EDAC_MV64X60
	tristate "Marvell MV64x60"
	depends on MV64X60
	help
	  Support for error detection and correction on the Marvell
	  MV64360 and MV64460 chipsets.

config EDAC_PASEMI
	tristate "PA Semi PWRficient"
	depends on PPC_PASEMI && PCI
	help
	  Support for error detection and correction on PA Semi
	  PWRficient.

config EDAC_CELL
	tristate "Cell Broadband Engine memory controller"
	depends on PPC_CELL_COMMON
	help
	  Support for error detection and correction on the
	  Cell Broadband Engine internal memory controller
	  on platform without a hypervisor

config EDAC_PPC4XX
	tristate "PPC4xx IBM DDR2 Memory Controller"
	depends on 4xx
	help
	  This enables support for EDAC on the ECC memory used
	  with the IBM DDR2 memory controller found in various
	  PowerPC 4xx embedded processors such as the 405EX[r],
	  440SP, 440SPe, 460EX, 460GT and 460SX.

config EDAC_AMD8131
	tristate "AMD8131 HyperTransport PCI-X Tunnel"
	depends on PCI && PPC_MAPLE
	help
	  Support for error detection and correction on the
	  AMD8131 HyperTransport PCI-X Tunnel chip.
	  Note, add more Kconfig dependency if it's adopted
	  on some machine other than Maple.

config EDAC_AMD8111
	tristate "AMD8111 HyperTransport I/O Hub"
	depends on PCI && PPC_MAPLE
	help
	  Support for error detection and correction on the
	  AMD8111 HyperTransport I/O Hub chip.
	  Note, add more Kconfig dependency if it's adopted
	  on some machine other than Maple.

config EDAC_CPC925
	tristate "IBM CPC925 Memory Controller (PPC970FX)"
	depends on PPC64
	help
	  Support for error detection and correction on the
	  IBM CPC925 Bridge and Memory Controller, which is
	  a companion chip to the PowerPC 970 family of
	  processors.

config EDAC_TILE
	tristate "Tilera Memory Controller"
	depends on TILE
	default y
	help
	  Support for error detection and correction on the
	  Tilera memory controller.

config EDAC_HIGHBANK_MC
	tristate "Highbank Memory Controller"
	depends on ARCH_HIGHBANK
	help
	  Support for error detection and correction on the
	  Calxeda Highbank memory controller.

config EDAC_HIGHBANK_L2
	tristate "Highbank L2 Cache"
	depends on ARCH_HIGHBANK
	help
	  Support for error detection and correction on the
	  Calxeda Highbank memory controller.

config EDAC_OCTEON_PC
	tristate "Cavium Octeon Primary Caches"
	depends on CPU_CAVIUM_OCTEON
	help
	  Support for error detection and correction on the primary caches of
	  the cnMIPS cores of Cavium Octeon family SOCs.

config EDAC_OCTEON_L2C
	tristate "Cavium Octeon Secondary Caches (L2C)"
	depends on CAVIUM_OCTEON_SOC
	help
	  Support for error detection and correction on the
	  Cavium Octeon family of SOCs.

config EDAC_OCTEON_LMC
	tristate "Cavium Octeon DRAM Memory Controller (LMC)"
	depends on CAVIUM_OCTEON_SOC
	help
	  Support for error detection and correction on the
	  Cavium Octeon family of SOCs.

config EDAC_OCTEON_PCI
	tristate "Cavium Octeon PCI Controller"
	depends on PCI && CAVIUM_OCTEON_SOC
	help
	  Support for error detection and correction on the
	  Cavium Octeon family of SOCs.

config EDAC_THUNDERX
	tristate "Cavium ThunderX EDAC"
	depends on ARM64
	depends on PCI
	help
	  Support for error detection and correction on the
	  Cavium ThunderX memory controllers (LMC), Cache
	  Coherent Processor Interconnect (CCPI) and L2 cache
	  blocks (TAD, CBC, MCI).

config EDAC_ALTERA
	bool "Altera SOCFPGA ECC"
	depends on EDAC=y && ARCH_SOCFPGA
	help
	  Support for error detection and correction on the
	  Altera SOCs. This must be selected for SDRAM ECC.
	  Note that the preloader must initialize the SDRAM
	  before loading the kernel.

config EDAC_ALTERA_L2C
	bool "Altera L2 Cache ECC"
	depends on EDAC_ALTERA=y && CACHE_L2X0
	help
	  Support for error detection and correction on the
	  Altera L2 cache Memory for Altera SoCs. This option
	  requires L2 cache.

config EDAC_ALTERA_OCRAM
	bool "Altera On-Chip RAM ECC"
	depends on EDAC_ALTERA=y && SRAM && GENERIC_ALLOCATOR
	help
	  Support for error detection and correction on the
	  Altera On-Chip RAM Memory for Altera SoCs.

config EDAC_ALTERA_ETHERNET
	bool "Altera Ethernet FIFO ECC"
	depends on EDAC_ALTERA=y
	help
	  Support for error detection and correction on the
	  Altera Ethernet FIFO Memory for Altera SoCs.

config EDAC_ALTERA_NAND
	bool "Altera NAND FIFO ECC"
	depends on EDAC_ALTERA=y && MTD_NAND_DENALI
	help
	  Support for error detection and correction on the
	  Altera NAND FIFO Memory for Altera SoCs.

config EDAC_ALTERA_DMA
	bool "Altera DMA FIFO ECC"
	depends on EDAC_ALTERA=y && PL330_DMA=y
	help
	  Support for error detection and correction on the
	  Altera DMA FIFO Memory for Altera SoCs.

config EDAC_ALTERA_USB
	bool "Altera USB FIFO ECC"
	depends on EDAC_ALTERA=y && USB_DWC2
	help
	  Support for error detection and correction on the
	  Altera USB FIFO Memory for Altera SoCs.

config EDAC_ALTERA_QSPI
	bool "Altera QSPI FIFO ECC"
	depends on EDAC_ALTERA=y && SPI_CADENCE_QUADSPI
	help
	  Support for error detection and correction on the
	  Altera QSPI FIFO Memory for Altera SoCs.

config EDAC_ALTERA_SDMMC
	bool "Altera SDMMC FIFO ECC"
	depends on EDAC_ALTERA=y && MMC_DW
	help
	  Support for error detection and correction on the
	  Altera SDMMC FIFO Memory for Altera SoCs.

config EDAC_SYNOPSYS
	tristate "Synopsys DDR Memory Controller"
	depends on ARCH_ZYNQ
	help
	  Support for error detection and correction on the Synopsys DDR
	  memory controller.

config EDAC_XGENE
	tristate "APM X-Gene SoC"
	depends on (ARM64 || COMPILE_TEST)
	help
	  Support for error detection and correction on the
	  APM X-Gene family of SOCs.

endif # EDAC