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- diff -Nur linux-3.9.11.orig/arch/arm/Kconfig linux-3.9.11/arch/arm/Kconfig
- --- linux-3.9.11.orig/arch/arm/Kconfig 2013-07-21 02:16:17.000000000 +0200
- +++ linux-3.9.11/arch/arm/Kconfig 2013-09-12 07:26:36.000000000 +0200
- @@ -6,7 +6,6 @@
- select ARCH_HAVE_CUSTOM_GPIO_H
- select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
- select ARCH_WANT_IPC_PARSE_VERSION
- - select BUILDTIME_EXTABLE_SORT if MMU
- select CPU_PM if (SUSPEND || CPU_IDLE)
- select DCACHE_WORD_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && !CPU_BIG_ENDIAN && MMU
- select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
- diff -Nur linux-3.9.11.orig/arch/mips/Kconfig linux-3.9.11/arch/mips/Kconfig
- --- linux-3.9.11.orig/arch/mips/Kconfig 2013-07-21 02:16:17.000000000 +0200
- +++ linux-3.9.11/arch/mips/Kconfig 2013-09-12 07:26:20.000000000 +0200
- @@ -34,7 +34,6 @@
- select HAVE_MEMBLOCK_NODE_MAP
- select ARCH_DISCARD_MEMBLOCK
- select GENERIC_SMP_IDLE_THREAD
- - select BUILDTIME_EXTABLE_SORT
- select GENERIC_CLOCKEVENTS
- select GENERIC_CMOS_UPDATE
- select HAVE_MOD_ARCH_SPECIFIC
- diff -Nur linux-3.9.11.orig/arch/mips/Kconfig.orig linux-3.9.11/arch/mips/Kconfig.orig
- --- linux-3.9.11.orig/arch/mips/Kconfig.orig 1970-01-01 01:00:00.000000000 +0100
- +++ linux-3.9.11/arch/mips/Kconfig.orig 2013-07-21 02:16:17.000000000 +0200
- @@ -0,0 +1,2557 @@
- +config MIPS
- + bool
- + default y
- + select HAVE_GENERIC_DMA_COHERENT
- + select HAVE_IDE
- + select HAVE_OPROFILE
- + select HAVE_PERF_EVENTS
- + select PERF_USE_VMALLOC
- + select HAVE_ARCH_KGDB
- + select ARCH_HAVE_CUSTOM_GPIO_H
- + select HAVE_FUNCTION_TRACER
- + select HAVE_FUNCTION_TRACE_MCOUNT_TEST
- + select HAVE_DYNAMIC_FTRACE
- + select HAVE_FTRACE_MCOUNT_RECORD
- + select HAVE_C_RECORDMCOUNT
- + select HAVE_FUNCTION_GRAPH_TRACER
- + select HAVE_KPROBES
- + select HAVE_KRETPROBES
- + select HAVE_DEBUG_KMEMLEAK
- + select ARCH_BINFMT_ELF_RANDOMIZE_PIE
- + select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
- + select RTC_LIB if !MACH_LOONGSON
- + select GENERIC_ATOMIC64 if !64BIT
- + select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
- + select HAVE_DMA_ATTRS
- + select HAVE_DMA_API_DEBUG
- + select HAVE_GENERIC_HARDIRQS
- + select GENERIC_IRQ_PROBE
- + select GENERIC_IRQ_SHOW
- + select HAVE_ARCH_JUMP_LABEL
- + select ARCH_WANT_IPC_PARSE_VERSION
- + select IRQ_FORCED_THREADING
- + select HAVE_MEMBLOCK
- + select HAVE_MEMBLOCK_NODE_MAP
- + select ARCH_DISCARD_MEMBLOCK
- + select GENERIC_SMP_IDLE_THREAD
- + select BUILDTIME_EXTABLE_SORT
- + select GENERIC_CLOCKEVENTS
- + select GENERIC_CMOS_UPDATE
- + select HAVE_MOD_ARCH_SPECIFIC
- + select VIRT_TO_BUS
- + select MODULES_USE_ELF_REL if MODULES
- + select MODULES_USE_ELF_RELA if MODULES && 64BIT
- + select CLONE_BACKWARDS
- +
- +menu "Machine selection"
- +
- +config ZONE_DMA
- + bool
- +
- +choice
- + prompt "System type"
- + default SGI_IP22
- +
- +config MIPS_ALCHEMY
- + bool "Alchemy processor based machines"
- + select 64BIT_PHYS_ADDR
- + select CEVT_R4K
- + select CSRC_R4K
- + select IRQ_CPU
- + select SYS_HAS_CPU_MIPS32_R1
- + select SYS_SUPPORTS_32BIT_KERNEL
- + select SYS_SUPPORTS_APM_EMULATION
- + select GENERIC_GPIO
- + select ARCH_WANT_OPTIONAL_GPIOLIB
- + select SYS_SUPPORTS_ZBOOT
- + select USB_ARCH_HAS_OHCI
- + select USB_ARCH_HAS_EHCI
- +
- +config AR7
- + bool "Texas Instruments AR7"
- + select BOOT_ELF32
- + select DMA_NONCOHERENT
- + select CEVT_R4K
- + select CSRC_R4K
- + select IRQ_CPU
- + select NO_EXCEPT_FILL
- + select SWAP_IO_SPACE
- + select SYS_HAS_CPU_MIPS32_R1
- + select SYS_HAS_EARLY_PRINTK
- + select SYS_SUPPORTS_32BIT_KERNEL
- + select SYS_SUPPORTS_LITTLE_ENDIAN
- + select SYS_SUPPORTS_ZBOOT_UART16550
- + select ARCH_REQUIRE_GPIOLIB
- + select VLYNQ
- + select HAVE_CLK
- + help
- + Support for the Texas Instruments AR7 System-on-a-Chip
- + family: TNETD7100, 7200 and 7300.
- +
- +config ATH79
- + bool "Atheros AR71XX/AR724X/AR913X based boards"
- + select ARCH_REQUIRE_GPIOLIB
- + select BOOT_RAW
- + select CEVT_R4K
- + select CSRC_R4K
- + select DMA_NONCOHERENT
- + select HAVE_CLK
- + select IRQ_CPU
- + select MIPS_MACHINE
- + select SYS_HAS_CPU_MIPS32_R2
- + select SYS_HAS_EARLY_PRINTK
- + select SYS_SUPPORTS_32BIT_KERNEL
- + select SYS_SUPPORTS_BIG_ENDIAN
- + help
- + Support for the Atheros AR71XX/AR724X/AR913X SoCs.
- +
- +config BCM47XX
- + bool "Broadcom BCM47XX based boards"
- + select ARCH_WANT_OPTIONAL_GPIOLIB
- + select BOOT_RAW
- + select CEVT_R4K
- + select CSRC_R4K
- + select DMA_NONCOHERENT
- + select FW_CFE
- + select HW_HAS_PCI
- + select IRQ_CPU
- + select NO_EXCEPT_FILL
- + select SYS_SUPPORTS_32BIT_KERNEL
- + select SYS_SUPPORTS_LITTLE_ENDIAN
- + select SYS_HAS_EARLY_PRINTK
- + help
- + Support for BCM47XX based boards
- +
- +config BCM63XX
- + bool "Broadcom BCM63XX based boards"
- + select CEVT_R4K
- + select CSRC_R4K
- + select DMA_NONCOHERENT
- + select IRQ_CPU
- + select SYS_HAS_CPU_MIPS32_R1
- + select SYS_SUPPORTS_32BIT_KERNEL
- + select SYS_SUPPORTS_BIG_ENDIAN
- + select SYS_HAS_EARLY_PRINTK
- + select SWAP_IO_SPACE
- + select ARCH_REQUIRE_GPIOLIB
- + select HAVE_CLK
- + help
- + Support for BCM63XX based boards
- +
- +config MIPS_COBALT
- + bool "Cobalt Server"
- + select CEVT_R4K
- + select CSRC_R4K
- + select CEVT_GT641XX
- + select DMA_NONCOHERENT
- + select HW_HAS_PCI
- + select I8253
- + select I8259
- + select IRQ_CPU
- + select IRQ_GT641XX
- + select PCI_GT64XXX_PCI0
- + select PCI
- + select SYS_HAS_CPU_NEVADA
- + select SYS_HAS_EARLY_PRINTK
- + select SYS_SUPPORTS_32BIT_KERNEL
- + select SYS_SUPPORTS_64BIT_KERNEL
- + select SYS_SUPPORTS_LITTLE_ENDIAN
- +
- +config MACH_DECSTATION
- + bool "DECstations"
- + select BOOT_ELF32
- + select CEVT_DS1287
- + select CEVT_R4K
- + select CSRC_IOASIC
- + select CSRC_R4K
- + select CPU_DADDI_WORKAROUNDS if 64BIT
- + select CPU_R4000_WORKAROUNDS if 64BIT
- + select CPU_R4400_WORKAROUNDS if 64BIT
- + select DMA_NONCOHERENT
- + select NO_IOPORT
- + select IRQ_CPU
- + select SYS_HAS_CPU_R3000
- + select SYS_HAS_CPU_R4X00
- + select SYS_SUPPORTS_32BIT_KERNEL
- + select SYS_SUPPORTS_64BIT_KERNEL
- + select SYS_SUPPORTS_LITTLE_ENDIAN
- + select SYS_SUPPORTS_128HZ
- + select SYS_SUPPORTS_256HZ
- + select SYS_SUPPORTS_1024HZ
- + help
- + This enables support for DEC's MIPS based workstations. For details
- + see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
- + DECstation porting pages on <http://decstation.unix-ag.org/>.
- +
- + If you have one of the following DECstation Models you definitely
- + want to choose R4xx0 for the CPU Type:
- +
- + DECstation 5000/50
- + DECstation 5000/150
- + DECstation 5000/260
- + DECsystem 5900/260
- +
- + otherwise choose R3000.
- +
- +config MACH_JAZZ
- + bool "Jazz family of machines"
- + select FW_ARC
- + select FW_ARC32
- + select ARCH_MAY_HAVE_PC_FDC
- + select CEVT_R4K
- + select CSRC_R4K
- + select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
- + select GENERIC_ISA_DMA
- + select HAVE_PCSPKR_PLATFORM
- + select IRQ_CPU
- + select I8253
- + select I8259
- + select ISA
- + select SYS_HAS_CPU_R4X00
- + select SYS_SUPPORTS_32BIT_KERNEL
- + select SYS_SUPPORTS_64BIT_KERNEL
- + select SYS_SUPPORTS_100HZ
- + help
- + This a family of machines based on the MIPS R4030 chipset which was
- + used by several vendors to build RISC/os and Windows NT workstations.
- + Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
- + Olivetti M700-10 workstations.
- +
- +config MACH_JZ4740
- + bool "Ingenic JZ4740 based machines"
- + select SYS_HAS_CPU_MIPS32_R1
- + select SYS_SUPPORTS_32BIT_KERNEL
- + select SYS_SUPPORTS_LITTLE_ENDIAN
- + select SYS_SUPPORTS_ZBOOT_UART16550
- + select DMA_NONCOHERENT
- + select IRQ_CPU
- + select GENERIC_GPIO
- + select ARCH_REQUIRE_GPIOLIB
- + select SYS_HAS_EARLY_PRINTK
- + select HAVE_PWM
- + select HAVE_CLK
- + select GENERIC_IRQ_CHIP
- +
- +config LANTIQ
- + bool "Lantiq based platforms"
- + select DMA_NONCOHERENT
- + select IRQ_CPU
- + select CEVT_R4K
- + select CSRC_R4K
- + select SYS_HAS_CPU_MIPS32_R1
- + select SYS_HAS_CPU_MIPS32_R2
- + select SYS_SUPPORTS_BIG_ENDIAN
- + select SYS_SUPPORTS_32BIT_KERNEL
- + select SYS_SUPPORTS_MULTITHREADING
- + select SYS_HAS_EARLY_PRINTK
- + select ARCH_REQUIRE_GPIOLIB
- + select SWAP_IO_SPACE
- + select BOOT_RAW
- + select HAVE_MACH_CLKDEV
- + select CLKDEV_LOOKUP
- + select USE_OF
- + select PINCTRL
- + select PINCTRL_LANTIQ
- +
- +config LASAT
- + bool "LASAT Networks platforms"
- + select CEVT_R4K
- + select CSRC_R4K
- + select DMA_NONCOHERENT
- + select SYS_HAS_EARLY_PRINTK
- + select HW_HAS_PCI
- + select IRQ_CPU
- + select PCI_GT64XXX_PCI0
- + select MIPS_NILE4
- + select R5000_CPU_SCACHE
- + select SYS_HAS_CPU_R5000
- + select SYS_SUPPORTS_32BIT_KERNEL
- + select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
- + select SYS_SUPPORTS_LITTLE_ENDIAN
- +
- +config MACH_LOONGSON
- + bool "Loongson family of machines"
- + select SYS_SUPPORTS_ZBOOT
- + help
- + This enables the support of Loongson family of machines.
- +
- + Loongson is a family of general-purpose MIPS-compatible CPUs.
- + developed at Institute of Computing Technology (ICT),
- + Chinese Academy of Sciences (CAS) in the People's Republic
- + of China. The chief architect is Professor Weiwu Hu.
- +
- +config MACH_LOONGSON1
- + bool "Loongson 1 family of machines"
- + select SYS_SUPPORTS_ZBOOT
- + help
- + This enables support for the Loongson 1 based machines.
- +
- + Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
- + the ICT (Institute of Computing Technology) and the Chinese Academy
- + of Sciences.
- +
- +config MIPS_MALTA
- + bool "MIPS Malta board"
- + select ARCH_MAY_HAVE_PC_FDC
- + select BOOT_ELF32
- + select BOOT_RAW
- + select CEVT_R4K
- + select CSRC_R4K
- + select CSRC_GIC
- + select DMA_NONCOHERENT
- + select GENERIC_ISA_DMA
- + select HAVE_PCSPKR_PLATFORM
- + select IRQ_CPU
- + select IRQ_GIC
- + select HW_HAS_PCI
- + select I8253
- + select I8259
- + select MIPS_BOARDS_GEN
- + select MIPS_BONITO64
- + select MIPS_CPU_SCACHE
- + select PCI_GT64XXX_PCI0
- + select MIPS_MSC
- + select SWAP_IO_SPACE
- + select SYS_HAS_CPU_MIPS32_R1
- + select SYS_HAS_CPU_MIPS32_R2
- + select SYS_HAS_CPU_MIPS64_R1
- + select SYS_HAS_CPU_MIPS64_R2
- + select SYS_HAS_CPU_NEVADA
- + select SYS_HAS_CPU_RM7000
- + select SYS_HAS_EARLY_PRINTK
- + select SYS_SUPPORTS_32BIT_KERNEL
- + select SYS_SUPPORTS_64BIT_KERNEL
- + select SYS_SUPPORTS_BIG_ENDIAN
- + select SYS_SUPPORTS_LITTLE_ENDIAN
- + select SYS_SUPPORTS_MIPS_CMP
- + select SYS_SUPPORTS_MULTITHREADING
- + select SYS_SUPPORTS_SMARTMIPS
- + select SYS_SUPPORTS_ZBOOT
- + help
- + This enables support for the MIPS Technologies Malta evaluation
- + board.
- +
- +config MIPS_SEAD3
- + bool "MIPS SEAD3 board"
- + select BOOT_ELF32
- + select BOOT_RAW
- + select CEVT_R4K
- + select CSRC_R4K
- + select CPU_MIPSR2_IRQ_VI
- + select CPU_MIPSR2_IRQ_EI
- + select DMA_NONCOHERENT
- + select IRQ_CPU
- + select IRQ_GIC
- + select MIPS_BOARDS_GEN
- + select MIPS_CPU_SCACHE
- + select MIPS_MSC
- + select SYS_HAS_CPU_MIPS32_R1
- + select SYS_HAS_CPU_MIPS32_R2
- + select SYS_HAS_CPU_MIPS64_R1
- + select SYS_HAS_EARLY_PRINTK
- + select SYS_SUPPORTS_32BIT_KERNEL
- + select SYS_SUPPORTS_64BIT_KERNEL
- + select SYS_SUPPORTS_BIG_ENDIAN
- + select SYS_SUPPORTS_LITTLE_ENDIAN
- + select SYS_SUPPORTS_SMARTMIPS
- + select USB_ARCH_HAS_EHCI
- + select USB_EHCI_BIG_ENDIAN_DESC
- + select USB_EHCI_BIG_ENDIAN_MMIO
- + select USE_OF
- + help
- + This enables support for the MIPS Technologies SEAD3 evaluation
- + board.
- +
- +config NEC_MARKEINS
- + bool "NEC EMMA2RH Mark-eins board"
- + select SOC_EMMA2RH
- + select HW_HAS_PCI
- + help
- + This enables support for the NEC Electronics Mark-eins boards.
- +
- +config MACH_VR41XX
- + bool "NEC VR4100 series based machines"
- + select CEVT_R4K
- + select CSRC_R4K
- + select SYS_HAS_CPU_VR41XX
- + select ARCH_REQUIRE_GPIOLIB
- +
- +config NXP_STB220
- + bool "NXP STB220 board"
- + select SOC_PNX833X
- + help
- + Support for NXP Semiconductors STB220 Development Board.
- +
- +config NXP_STB225
- + bool "NXP 225 board"
- + select SOC_PNX833X
- + select SOC_PNX8335
- + help
- + Support for NXP Semiconductors STB225 Development Board.
- +
- +config PMC_MSP
- + bool "PMC-Sierra MSP chipsets"
- + select CEVT_R4K
- + select CSRC_R4K
- + select DMA_NONCOHERENT
- + select SWAP_IO_SPACE
- + select NO_EXCEPT_FILL
- + select BOOT_RAW
- + select SYS_HAS_CPU_MIPS32_R1
- + select SYS_HAS_CPU_MIPS32_R2
- + select SYS_SUPPORTS_32BIT_KERNEL
- + select SYS_SUPPORTS_BIG_ENDIAN
- + select IRQ_CPU
- + select SERIAL_8250
- + select SERIAL_8250_CONSOLE
- + help
- + This adds support for the PMC-Sierra family of Multi-Service
- + Processor System-On-A-Chips. These parts include a number
- + of integrated peripherals, interfaces and DSPs in addition to
- + a variety of MIPS cores.
- +
- +config POWERTV
- + bool "Cisco PowerTV"
- + select BOOT_ELF32
- + select CEVT_R4K
- + select CPU_MIPSR2_IRQ_VI
- + select CPU_MIPSR2_IRQ_EI
- + select CSRC_POWERTV
- + select DMA_NONCOHERENT
- + select HW_HAS_PCI
- + select SYS_HAS_EARLY_PRINTK
- + select SYS_HAS_CPU_MIPS32_R2
- + select SYS_SUPPORTS_32BIT_KERNEL
- + select SYS_SUPPORTS_BIG_ENDIAN
- + select SYS_SUPPORTS_HIGHMEM
- + select USB_OHCI_LITTLE_ENDIAN
- + help
- + This enables support for the Cisco PowerTV Platform.
- +
- +config RALINK
- + bool "Ralink based machines"
- + select CEVT_R4K
- + select CSRC_R4K
- + select BOOT_RAW
- + select DMA_NONCOHERENT
- + select IRQ_CPU
- + select USE_OF
- + select SYS_HAS_CPU_MIPS32_R1
- + select SYS_HAS_CPU_MIPS32_R2
- + select SYS_SUPPORTS_32BIT_KERNEL
- + select SYS_SUPPORTS_LITTLE_ENDIAN
- + select SYS_HAS_EARLY_PRINTK
- + select HAVE_MACH_CLKDEV
- + select CLKDEV_LOOKUP
- +
- +config SGI_IP22
- + bool "SGI IP22 (Indy/Indigo2)"
- + select FW_ARC
- + select FW_ARC32
- + select BOOT_ELF32
- + select CEVT_R4K
- + select CSRC_R4K
- + select DEFAULT_SGI_PARTITION
- + select DMA_NONCOHERENT
- + select HW_HAS_EISA
- + select I8253
- + select I8259
- + select IP22_CPU_SCACHE
- + select IRQ_CPU
- + select GENERIC_ISA_DMA_SUPPORT_BROKEN
- + select SGI_HAS_I8042
- + select SGI_HAS_INDYDOG
- + select SGI_HAS_HAL2
- + select SGI_HAS_SEEQ
- + select SGI_HAS_WD93
- + select SGI_HAS_ZILOG
- + select SWAP_IO_SPACE
- + select SYS_HAS_CPU_R4X00
- + select SYS_HAS_CPU_R5000
- + #
- + # Disable EARLY_PRINTK for now since it leads to overwritten prom
- + # memory during early boot on some machines.
- + #
- + # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
- + # for a more details discussion
- + #
- + # select SYS_HAS_EARLY_PRINTK
- + select SYS_SUPPORTS_32BIT_KERNEL
- + select SYS_SUPPORTS_64BIT_KERNEL
- + select SYS_SUPPORTS_BIG_ENDIAN
- + help
- + This are the SGI Indy, Challenge S and Indigo2, as well as certain
- + OEM variants like the Tandem CMN B006S. To compile a Linux kernel
- + that runs on these, say Y here.
- +
- +config SGI_IP27
- + bool "SGI IP27 (Origin200/2000)"
- + select FW_ARC
- + select FW_ARC64
- + select BOOT_ELF64
- + select DEFAULT_SGI_PARTITION
- + select DMA_COHERENT
- + select SYS_HAS_EARLY_PRINTK
- + select HW_HAS_PCI
- + select NR_CPUS_DEFAULT_64
- + select SYS_HAS_CPU_R10000
- + select SYS_SUPPORTS_64BIT_KERNEL
- + select SYS_SUPPORTS_BIG_ENDIAN
- + select SYS_SUPPORTS_NUMA
- + select SYS_SUPPORTS_SMP
- + help
- + This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
- + workstations. To compile a Linux kernel that runs on these, say Y
- + here.
- +
- +config SGI_IP28
- + bool "SGI IP28 (Indigo2 R10k)"
- + select FW_ARC
- + select FW_ARC64
- + select BOOT_ELF64
- + select CEVT_R4K
- + select CSRC_R4K
- + select DEFAULT_SGI_PARTITION
- + select DMA_NONCOHERENT
- + select GENERIC_ISA_DMA_SUPPORT_BROKEN
- + select IRQ_CPU
- + select HW_HAS_EISA
- + select I8253
- + select I8259
- + select SGI_HAS_I8042
- + select SGI_HAS_INDYDOG
- + select SGI_HAS_HAL2
- + select SGI_HAS_SEEQ
- + select SGI_HAS_WD93
- + select SGI_HAS_ZILOG
- + select SWAP_IO_SPACE
- + select SYS_HAS_CPU_R10000
- + #
- + # Disable EARLY_PRINTK for now since it leads to overwritten prom
- + # memory during early boot on some machines.
- + #
- + # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
- + # for a more details discussion
- + #
- + # select SYS_HAS_EARLY_PRINTK
- + select SYS_SUPPORTS_64BIT_KERNEL
- + select SYS_SUPPORTS_BIG_ENDIAN
- + help
- + This is the SGI Indigo2 with R10000 processor. To compile a Linux
- + kernel that runs on these, say Y here.
- +
- +config SGI_IP32
- + bool "SGI IP32 (O2)"
- + select FW_ARC
- + select FW_ARC32
- + select BOOT_ELF32
- + select CEVT_R4K
- + select CSRC_R4K
- + select DMA_NONCOHERENT
- + select HW_HAS_PCI
- + select IRQ_CPU
- + select R5000_CPU_SCACHE
- + select RM7000_CPU_SCACHE
- + select SYS_HAS_CPU_R5000
- + select SYS_HAS_CPU_R10000 if BROKEN
- + select SYS_HAS_CPU_RM7000
- + select SYS_HAS_CPU_NEVADA
- + select SYS_SUPPORTS_64BIT_KERNEL
- + select SYS_SUPPORTS_BIG_ENDIAN
- + help
- + If you want this kernel to run on SGI O2 workstation, say Y here.
- +
- +config SIBYTE_CRHINE
- + bool "Sibyte BCM91120C-CRhine"
- + select BOOT_ELF32
- + select DMA_COHERENT
- + select SIBYTE_BCM1120
- + select SWAP_IO_SPACE
- + select SYS_HAS_CPU_SB1
- + select SYS_SUPPORTS_BIG_ENDIAN
- + select SYS_SUPPORTS_LITTLE_ENDIAN
- +
- +config SIBYTE_CARMEL
- + bool "Sibyte BCM91120x-Carmel"
- + select BOOT_ELF32
- + select DMA_COHERENT
- + select SIBYTE_BCM1120
- + select SWAP_IO_SPACE
- + select SYS_HAS_CPU_SB1
- + select SYS_SUPPORTS_BIG_ENDIAN
- + select SYS_SUPPORTS_LITTLE_ENDIAN
- +
- +config SIBYTE_CRHONE
- + bool "Sibyte BCM91125C-CRhone"
- + select BOOT_ELF32
- + select DMA_COHERENT
- + select SIBYTE_BCM1125
- + select SWAP_IO_SPACE
- + select SYS_HAS_CPU_SB1
- + select SYS_SUPPORTS_BIG_ENDIAN
- + select SYS_SUPPORTS_HIGHMEM
- + select SYS_SUPPORTS_LITTLE_ENDIAN
- +
- +config SIBYTE_RHONE
- + bool "Sibyte BCM91125E-Rhone"
- + select BOOT_ELF32
- + select DMA_COHERENT
- + select SIBYTE_BCM1125H
- + select SWAP_IO_SPACE
- + select SYS_HAS_CPU_SB1
- + select SYS_SUPPORTS_BIG_ENDIAN
- + select SYS_SUPPORTS_LITTLE_ENDIAN
- +
- +config SIBYTE_SWARM
- + bool "Sibyte BCM91250A-SWARM"
- + select BOOT_ELF32
- + select DMA_COHERENT
- + select HAVE_PATA_PLATFORM
- + select NR_CPUS_DEFAULT_2
- + select SIBYTE_SB1250
- + select SWAP_IO_SPACE
- + select SYS_HAS_CPU_SB1
- + select SYS_SUPPORTS_BIG_ENDIAN
- + select SYS_SUPPORTS_HIGHMEM
- + select SYS_SUPPORTS_LITTLE_ENDIAN
- + select ZONE_DMA32 if 64BIT
- +
- +config SIBYTE_LITTLESUR
- + bool "Sibyte BCM91250C2-LittleSur"
- + select BOOT_ELF32
- + select DMA_COHERENT
- + select HAVE_PATA_PLATFORM
- + select NR_CPUS_DEFAULT_2
- + select SIBYTE_SB1250
- + select SWAP_IO_SPACE
- + select SYS_HAS_CPU_SB1
- + select SYS_SUPPORTS_BIG_ENDIAN
- + select SYS_SUPPORTS_HIGHMEM
- + select SYS_SUPPORTS_LITTLE_ENDIAN
- +
- +config SIBYTE_SENTOSA
- + bool "Sibyte BCM91250E-Sentosa"
- + select BOOT_ELF32
- + select DMA_COHERENT
- + select NR_CPUS_DEFAULT_2
- + select SIBYTE_SB1250
- + select SWAP_IO_SPACE
- + select SYS_HAS_CPU_SB1
- + select SYS_SUPPORTS_BIG_ENDIAN
- + select SYS_SUPPORTS_LITTLE_ENDIAN
- +
- +config SIBYTE_BIGSUR
- + bool "Sibyte BCM91480B-BigSur"
- + select BOOT_ELF32
- + select DMA_COHERENT
- + select NR_CPUS_DEFAULT_4
- + select SIBYTE_BCM1x80
- + select SWAP_IO_SPACE
- + select SYS_HAS_CPU_SB1
- + select SYS_SUPPORTS_BIG_ENDIAN
- + select SYS_SUPPORTS_HIGHMEM
- + select SYS_SUPPORTS_LITTLE_ENDIAN
- + select ZONE_DMA32 if 64BIT
- +
- +config SNI_RM
- + bool "SNI RM200/300/400"
- + select FW_ARC if CPU_LITTLE_ENDIAN
- + select FW_ARC32 if CPU_LITTLE_ENDIAN
- + select FW_SNIPROM if CPU_BIG_ENDIAN
- + select ARCH_MAY_HAVE_PC_FDC
- + select BOOT_ELF32
- + select CEVT_R4K
- + select CSRC_R4K
- + select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
- + select DMA_NONCOHERENT
- + select GENERIC_ISA_DMA
- + select HAVE_PCSPKR_PLATFORM
- + select HW_HAS_EISA
- + select HW_HAS_PCI
- + select IRQ_CPU
- + select I8253
- + select I8259
- + select ISA
- + select SWAP_IO_SPACE if CPU_BIG_ENDIAN
- + select SYS_HAS_CPU_R4X00
- + select SYS_HAS_CPU_R5000
- + select SYS_HAS_CPU_R10000
- + select R5000_CPU_SCACHE
- + select SYS_HAS_EARLY_PRINTK
- + select SYS_SUPPORTS_32BIT_KERNEL
- + select SYS_SUPPORTS_64BIT_KERNEL
- + select SYS_SUPPORTS_BIG_ENDIAN
- + select SYS_SUPPORTS_HIGHMEM
- + select SYS_SUPPORTS_LITTLE_ENDIAN
- + help
- + The SNI RM200/300/400 are MIPS-based machines manufactured by
- + Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
- + Technology and now in turn merged with Fujitsu. Say Y here to
- + support this machine type.
- +
- +config MACH_TX39XX
- + bool "Toshiba TX39 series based machines"
- +
- +config MACH_TX49XX
- + bool "Toshiba TX49 series based machines"
- +
- +config MIKROTIK_RB532
- + bool "Mikrotik RB532 boards"
- + select CEVT_R4K
- + select CSRC_R4K
- + select DMA_NONCOHERENT
- + select HW_HAS_PCI
- + select IRQ_CPU
- + select SYS_HAS_CPU_MIPS32_R1
- + select SYS_SUPPORTS_32BIT_KERNEL
- + select SYS_SUPPORTS_LITTLE_ENDIAN
- + select SWAP_IO_SPACE
- + select BOOT_RAW
- + select ARCH_REQUIRE_GPIOLIB
- + help
- + Support the Mikrotik(tm) RouterBoard 532 series,
- + based on the IDT RC32434 SoC.
- +
- +config WR_PPMC
- + bool "Wind River PPMC board"
- + select CEVT_R4K
- + select CSRC_R4K
- + select IRQ_CPU
- + select BOOT_ELF32
- + select DMA_NONCOHERENT
- + select HW_HAS_PCI
- + select PCI_GT64XXX_PCI0
- + select SWAP_IO_SPACE
- + select SYS_HAS_CPU_MIPS32_R1
- + select SYS_HAS_CPU_MIPS32_R2
- + select SYS_HAS_CPU_MIPS64_R1
- + select SYS_HAS_CPU_NEVADA
- + select SYS_HAS_CPU_RM7000
- + select SYS_SUPPORTS_32BIT_KERNEL
- + select SYS_SUPPORTS_64BIT_KERNEL
- + select SYS_SUPPORTS_BIG_ENDIAN
- + select SYS_SUPPORTS_LITTLE_ENDIAN
- + help
- + This enables support for the Wind River MIPS32 4KC PPMC evaluation
- + board, which is based on GT64120 bridge chip.
- +
- +config CAVIUM_OCTEON_SIMULATOR
- + bool "Cavium Networks Octeon Simulator"
- + select CEVT_R4K
- + select 64BIT_PHYS_ADDR
- + select DMA_COHERENT
- + select SYS_SUPPORTS_64BIT_KERNEL
- + select SYS_SUPPORTS_BIG_ENDIAN
- + select SYS_SUPPORTS_HOTPLUG_CPU
- + select SYS_HAS_CPU_CAVIUM_OCTEON
- + select HOLES_IN_ZONE
- + help
- + The Octeon simulator is software performance model of the Cavium
- + Octeon Processor. It supports simulating Octeon processors on x86
- + hardware.
- +
- +config CAVIUM_OCTEON_REFERENCE_BOARD
- + bool "Cavium Networks Octeon reference board"
- + select CEVT_R4K
- + select 64BIT_PHYS_ADDR
- + select DMA_COHERENT
- + select SYS_SUPPORTS_64BIT_KERNEL
- + select SYS_SUPPORTS_BIG_ENDIAN
- + select EDAC_SUPPORT
- + select SYS_SUPPORTS_HOTPLUG_CPU
- + select SYS_HAS_EARLY_PRINTK
- + select SYS_HAS_CPU_CAVIUM_OCTEON
- + select SWAP_IO_SPACE
- + select HW_HAS_PCI
- + select ARCH_SUPPORTS_MSI
- + select ZONE_DMA32
- + select USB_ARCH_HAS_OHCI
- + select USB_ARCH_HAS_EHCI
- + select HOLES_IN_ZONE
- + help
- + This option supports all of the Octeon reference boards from Cavium
- + Networks. It builds a kernel that dynamically determines the Octeon
- + CPU type and supports all known board reference implementations.
- + Some of the supported boards are:
- + EBT3000
- + EBH3000
- + EBH3100
- + Thunder
- + Kodama
- + Hikari
- + Say Y here for most Octeon reference boards.
- +
- +config NLM_XLR_BOARD
- + bool "Netlogic XLR/XLS based systems"
- + select BOOT_ELF32
- + select NLM_COMMON
- + select SYS_HAS_CPU_XLR
- + select SYS_SUPPORTS_SMP
- + select HW_HAS_PCI
- + select SWAP_IO_SPACE
- + select SYS_SUPPORTS_32BIT_KERNEL
- + select SYS_SUPPORTS_64BIT_KERNEL
- + select 64BIT_PHYS_ADDR
- + select SYS_SUPPORTS_BIG_ENDIAN
- + select SYS_SUPPORTS_HIGHMEM
- + select DMA_COHERENT
- + select NR_CPUS_DEFAULT_32
- + select CEVT_R4K
- + select CSRC_R4K
- + select IRQ_CPU
- + select ARCH_SUPPORTS_MSI
- + select ZONE_DMA32 if 64BIT
- + select SYNC_R4K
- + select SYS_HAS_EARLY_PRINTK
- + select USB_ARCH_HAS_OHCI if USB_SUPPORT
- + select USB_ARCH_HAS_EHCI if USB_SUPPORT
- + help
- + Support for systems based on Netlogic XLR and XLS processors.
- + Say Y here if you have a XLR or XLS based board.
- +
- +config NLM_XLP_BOARD
- + bool "Netlogic XLP based systems"
- + select BOOT_ELF32
- + select NLM_COMMON
- + select SYS_HAS_CPU_XLP
- + select SYS_SUPPORTS_SMP
- + select HW_HAS_PCI
- + select SYS_SUPPORTS_32BIT_KERNEL
- + select SYS_SUPPORTS_64BIT_KERNEL
- + select 64BIT_PHYS_ADDR
- + select SYS_SUPPORTS_BIG_ENDIAN
- + select SYS_SUPPORTS_LITTLE_ENDIAN
- + select SYS_SUPPORTS_HIGHMEM
- + select DMA_COHERENT
- + select NR_CPUS_DEFAULT_32
- + select CEVT_R4K
- + select CSRC_R4K
- + select IRQ_CPU
- + select ZONE_DMA32 if 64BIT
- + select SYNC_R4K
- + select SYS_HAS_EARLY_PRINTK
- + select USE_OF
- + help
- + This board is based on Netlogic XLP Processor.
- + Say Y here if you have a XLP based board.
- +
- +endchoice
- +
- +source "arch/mips/alchemy/Kconfig"
- +source "arch/mips/ath79/Kconfig"
- +source "arch/mips/bcm47xx/Kconfig"
- +source "arch/mips/bcm63xx/Kconfig"
- +source "arch/mips/jazz/Kconfig"
- +source "arch/mips/jz4740/Kconfig"
- +source "arch/mips/lantiq/Kconfig"
- +source "arch/mips/lasat/Kconfig"
- +source "arch/mips/pmcs-msp71xx/Kconfig"
- +source "arch/mips/powertv/Kconfig"
- +source "arch/mips/ralink/Kconfig"
- +source "arch/mips/sgi-ip27/Kconfig"
- +source "arch/mips/sibyte/Kconfig"
- +source "arch/mips/txx9/Kconfig"
- +source "arch/mips/vr41xx/Kconfig"
- +source "arch/mips/cavium-octeon/Kconfig"
- +source "arch/mips/loongson/Kconfig"
- +source "arch/mips/loongson1/Kconfig"
- +source "arch/mips/netlogic/Kconfig"
- +
- +endmenu
- +
- +config RWSEM_GENERIC_SPINLOCK
- + bool
- + default y
- +
- +config RWSEM_XCHGADD_ALGORITHM
- + bool
- +
- +config ARCH_HAS_ILOG2_U32
- + bool
- + default n
- +
- +config ARCH_HAS_ILOG2_U64
- + bool
- + default n
- +
- +config GENERIC_HWEIGHT
- + bool
- + default y
- +
- +config GENERIC_CALIBRATE_DELAY
- + bool
- + default y
- +
- +config SCHED_OMIT_FRAME_POINTER
- + bool
- + default y
- +
- +#
- +# Select some configuration options automatically based on user selections.
- +#
- +config FW_ARC
- + bool
- +
- +config ARCH_MAY_HAVE_PC_FDC
- + bool
- +
- +config BOOT_RAW
- + bool
- +
- +config CEVT_BCM1480
- + bool
- +
- +config CEVT_DS1287
- + bool
- +
- +config CEVT_GT641XX
- + bool
- +
- +config CEVT_R4K
- + bool
- +
- +config CEVT_SB1250
- + bool
- +
- +config CEVT_TXX9
- + bool
- +
- +config CSRC_BCM1480
- + bool
- +
- +config CSRC_IOASIC
- + bool
- +
- +config CSRC_POWERTV
- + bool
- +
- +config CSRC_R4K
- + bool
- +
- +config CSRC_GIC
- + bool
- +
- +config CSRC_SB1250
- + bool
- +
- +config GPIO_TXX9
- + select GENERIC_GPIO
- + select ARCH_REQUIRE_GPIOLIB
- + bool
- +
- +config FW_CFE
- + bool
- +
- +config ARCH_DMA_ADDR_T_64BIT
- + def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
- +
- +config DMA_COHERENT
- + bool
- +
- +config DMA_NONCOHERENT
- + bool
- + select NEED_DMA_MAP_STATE
- +
- +config NEED_DMA_MAP_STATE
- + bool
- +
- +config SYS_HAS_EARLY_PRINTK
- + bool
- +
- +config HOTPLUG_CPU
- + bool "Support for hot-pluggable CPUs"
- + depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
- + help
- + Say Y here to allow turning CPUs off and on. CPUs can be
- + controlled through /sys/devices/system/cpu.
- + (Note: power management support will enable this option
- + automatically on SMP systems. )
- + Say N if you want to disable CPU hotplug.
- +
- +config SYS_SUPPORTS_HOTPLUG_CPU
- + bool
- +
- +config I8259
- + bool
- +
- +config MIPS_BONITO64
- + bool
- +
- +config MIPS_MSC
- + bool
- +
- +config MIPS_NILE4
- + bool
- +
- +config MIPS_DISABLE_OBSOLETE_IDE
- + bool
- +
- +config SYNC_R4K
- + bool
- +
- +config MIPS_MACHINE
- + def_bool n
- +
- +config NO_IOPORT
- + def_bool n
- +
- +config GENERIC_ISA_DMA
- + bool
- + select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
- + select ISA_DMA_API
- +
- +config GENERIC_ISA_DMA_SUPPORT_BROKEN
- + bool
- + select GENERIC_ISA_DMA
- +
- +config ISA_DMA_API
- + bool
- +
- +config GENERIC_GPIO
- + bool
- +
- +config HOLES_IN_ZONE
- + bool
- +
- +#
- +# Endianness selection. Sufficiently obscure so many users don't know what to
- +# answer,so we try hard to limit the available choices. Also the use of a
- +# choice statement should be more obvious to the user.
- +#
- +choice
- + prompt "Endianness selection"
- + help
- + Some MIPS machines can be configured for either little or big endian
- + byte order. These modes require different kernels and a different
- + Linux distribution. In general there is one preferred byteorder for a
- + particular system but some systems are just as commonly used in the
- + one or the other endianness.
- +
- +config CPU_BIG_ENDIAN
- + bool "Big endian"
- + depends on SYS_SUPPORTS_BIG_ENDIAN
- +
- +config CPU_LITTLE_ENDIAN
- + bool "Little endian"
- + depends on SYS_SUPPORTS_LITTLE_ENDIAN
- + help
- +
- +endchoice
- +
- +config EXPORT_UASM
- + bool
- +
- +config SYS_SUPPORTS_APM_EMULATION
- + bool
- +
- +config SYS_SUPPORTS_BIG_ENDIAN
- + bool
- +
- +config SYS_SUPPORTS_LITTLE_ENDIAN
- + bool
- +
- +config SYS_SUPPORTS_HUGETLBFS
- + bool
- + depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
- + default y
- +
- +config MIPS_HUGE_TLB_SUPPORT
- + def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
- +
- +config IRQ_CPU
- + bool
- +
- +config IRQ_CPU_RM7K
- + bool
- +
- +config IRQ_MSP_SLP
- + bool
- +
- +config IRQ_MSP_CIC
- + bool
- +
- +config IRQ_TXX9
- + bool
- +
- +config IRQ_GT641XX
- + bool
- +
- +config IRQ_GIC
- + bool
- +
- +config MIPS_BOARDS_GEN
- + bool
- +
- +config PCI_GT64XXX_PCI0
- + bool
- +
- +config NO_EXCEPT_FILL
- + bool
- +
- +config SOC_EMMA2RH
- + bool
- + select CEVT_R4K
- + select CSRC_R4K
- + select DMA_NONCOHERENT
- + select IRQ_CPU
- + select SWAP_IO_SPACE
- + select SYS_HAS_CPU_R5500
- + select SYS_SUPPORTS_32BIT_KERNEL
- + select SYS_SUPPORTS_64BIT_KERNEL
- + select SYS_SUPPORTS_BIG_ENDIAN
- +
- +config SOC_PNX833X
- + bool
- + select CEVT_R4K
- + select CSRC_R4K
- + select IRQ_CPU
- + select DMA_NONCOHERENT
- + select SYS_HAS_CPU_MIPS32_R2
- + select SYS_SUPPORTS_32BIT_KERNEL
- + select SYS_SUPPORTS_LITTLE_ENDIAN
- + select SYS_SUPPORTS_BIG_ENDIAN
- + select GENERIC_GPIO
- + select CPU_MIPSR2_IRQ_VI
- +
- +config SOC_PNX8335
- + bool
- + select SOC_PNX833X
- +
- +config SWAP_IO_SPACE
- + bool
- +
- +config SGI_HAS_INDYDOG
- + bool
- +
- +config SGI_HAS_HAL2
- + bool
- +
- +config SGI_HAS_SEEQ
- + bool
- +
- +config SGI_HAS_WD93
- + bool
- +
- +config SGI_HAS_ZILOG
- + bool
- +
- +config SGI_HAS_I8042
- + bool
- +
- +config DEFAULT_SGI_PARTITION
- + bool
- +
- +config FW_ARC32
- + bool
- +
- +config FW_SNIPROM
- + bool
- +
- +config BOOT_ELF32
- + bool
- +
- +config MIPS_L1_CACHE_SHIFT
- + int
- + default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
- + default "6" if MIPS_CPU_SCACHE
- + default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
- + default "5"
- +
- +config HAVE_STD_PC_SERIAL_PORT
- + bool
- +
- +config ARC_CONSOLE
- + bool "ARC console support"
- + depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
- +
- +config ARC_MEMORY
- + bool
- + depends on MACH_JAZZ || SNI_RM || SGI_IP32
- + default y
- +
- +config ARC_PROMLIB
- + bool
- + depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
- + default y
- +
- +config FW_ARC64
- + bool
- +
- +config BOOT_ELF64
- + bool
- +
- +menu "CPU selection"
- +
- +choice
- + prompt "CPU type"
- + default CPU_R4X00
- +
- +config CPU_LOONGSON2E
- + bool "Loongson 2E"
- + depends on SYS_HAS_CPU_LOONGSON2E
- + select CPU_LOONGSON2
- + help
- + The Loongson 2E processor implements the MIPS III instruction set
- + with many extensions.
- +
- + It has an internal FPGA northbridge, which is compatible to
- + bonito64.
- +
- +config CPU_LOONGSON2F
- + bool "Loongson 2F"
- + depends on SYS_HAS_CPU_LOONGSON2F
- + select CPU_LOONGSON2
- + select GENERIC_GPIO
- + select ARCH_REQUIRE_GPIOLIB
- + help
- + The Loongson 2F processor implements the MIPS III instruction set
- + with many extensions.
- +
- + Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
- + have a similar programming interface with FPGA northbridge used in
- + Loongson2E.
- +
- +config CPU_LOONGSON1B
- + bool "Loongson 1B"
- + depends on SYS_HAS_CPU_LOONGSON1B
- + select CPU_LOONGSON1
- + help
- + The Loongson 1B is a 32-bit SoC, which implements the MIPS32
- + release 2 instruction set.
- +
- +config CPU_MIPS32_R1
- + bool "MIPS32 Release 1"
- + depends on SYS_HAS_CPU_MIPS32_R1
- + select CPU_HAS_PREFETCH
- + select CPU_SUPPORTS_32BIT_KERNEL
- + select CPU_SUPPORTS_HIGHMEM
- + help
- + Choose this option to build a kernel for release 1 or later of the
- + MIPS32 architecture. Most modern embedded systems with a 32-bit
- + MIPS processor are based on a MIPS32 processor. If you know the
- + specific type of processor in your system, choose those that one
- + otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
- + Release 2 of the MIPS32 architecture is available since several
- + years so chances are you even have a MIPS32 Release 2 processor
- + in which case you should choose CPU_MIPS32_R2 instead for better
- + performance.
- +
- +config CPU_MIPS32_R2
- + bool "MIPS32 Release 2"
- + depends on SYS_HAS_CPU_MIPS32_R2
- + select CPU_HAS_PREFETCH
- + select CPU_SUPPORTS_32BIT_KERNEL
- + select CPU_SUPPORTS_HIGHMEM
- + help
- + Choose this option to build a kernel for release 2 or later of the
- + MIPS32 architecture. Most modern embedded systems with a 32-bit
- + MIPS processor are based on a MIPS32 processor. If you know the
- + specific type of processor in your system, choose those that one
- + otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
- +
- +config CPU_MIPS64_R1
- + bool "MIPS64 Release 1"
- + depends on SYS_HAS_CPU_MIPS64_R1
- + select CPU_HAS_PREFETCH
- + select CPU_SUPPORTS_32BIT_KERNEL
- + select CPU_SUPPORTS_64BIT_KERNEL
- + select CPU_SUPPORTS_HIGHMEM
- + select CPU_SUPPORTS_HUGEPAGES
- + help
- + Choose this option to build a kernel for release 1 or later of the
- + MIPS64 architecture. Many modern embedded systems with a 64-bit
- + MIPS processor are based on a MIPS64 processor. If you know the
- + specific type of processor in your system, choose those that one
- + otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
- + Release 2 of the MIPS64 architecture is available since several
- + years so chances are you even have a MIPS64 Release 2 processor
- + in which case you should choose CPU_MIPS64_R2 instead for better
- + performance.
- +
- +config CPU_MIPS64_R2
- + bool "MIPS64 Release 2"
- + depends on SYS_HAS_CPU_MIPS64_R2
- + select CPU_HAS_PREFETCH
- + select CPU_SUPPORTS_32BIT_KERNEL
- + select CPU_SUPPORTS_64BIT_KERNEL
- + select CPU_SUPPORTS_HIGHMEM
- + select CPU_SUPPORTS_HUGEPAGES
- + help
- + Choose this option to build a kernel for release 2 or later of the
- + MIPS64 architecture. Many modern embedded systems with a 64-bit
- + MIPS processor are based on a MIPS64 processor. If you know the
- + specific type of processor in your system, choose those that one
- + otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
- +
- +config CPU_R3000
- + bool "R3000"
- + depends on SYS_HAS_CPU_R3000
- + select CPU_HAS_WB
- + select CPU_SUPPORTS_32BIT_KERNEL
- + select CPU_SUPPORTS_HIGHMEM
- + help
- + Please make sure to pick the right CPU type. Linux/MIPS is not
- + designed to be generic, i.e. Kernels compiled for R3000 CPUs will
- + *not* work on R4000 machines and vice versa. However, since most
- + of the supported machines have an R4000 (or similar) CPU, R4x00
- + might be a safe bet. If the resulting kernel does not work,
- + try to recompile with R3000.
- +
- +config CPU_TX39XX
- + bool "R39XX"
- + depends on SYS_HAS_CPU_TX39XX
- + select CPU_SUPPORTS_32BIT_KERNEL
- +
- +config CPU_VR41XX
- + bool "R41xx"
- + depends on SYS_HAS_CPU_VR41XX
- + select CPU_SUPPORTS_32BIT_KERNEL
- + select CPU_SUPPORTS_64BIT_KERNEL
- + help
- + The options selects support for the NEC VR4100 series of processors.
- + Only choose this option if you have one of these processors as a
- + kernel built with this option will not run on any other type of
- + processor or vice versa.
- +
- +config CPU_R4300
- + bool "R4300"
- + depends on SYS_HAS_CPU_R4300
- + select CPU_SUPPORTS_32BIT_KERNEL
- + select CPU_SUPPORTS_64BIT_KERNEL
- + help
- + MIPS Technologies R4300-series processors.
- +
- +config CPU_R4X00
- + bool "R4x00"
- + depends on SYS_HAS_CPU_R4X00
- + select CPU_SUPPORTS_32BIT_KERNEL
- + select CPU_SUPPORTS_64BIT_KERNEL
- + select CPU_SUPPORTS_HUGEPAGES
- + help
- + MIPS Technologies R4000-series processors other than 4300, including
- + the R4000, R4400, R4600, and 4700.
- +
- +config CPU_TX49XX
- + bool "R49XX"
- + depends on SYS_HAS_CPU_TX49XX
- + select CPU_HAS_PREFETCH
- + select CPU_SUPPORTS_32BIT_KERNEL
- + select CPU_SUPPORTS_64BIT_KERNEL
- + select CPU_SUPPORTS_HUGEPAGES
- +
- +config CPU_R5000
- + bool "R5000"
- + depends on SYS_HAS_CPU_R5000
- + select CPU_SUPPORTS_32BIT_KERNEL
- + select CPU_SUPPORTS_64BIT_KERNEL
- + select CPU_SUPPORTS_HUGEPAGES
- + help
- + MIPS Technologies R5000-series processors other than the Nevada.
- +
- +config CPU_R5432
- + bool "R5432"
- + depends on SYS_HAS_CPU_R5432
- + select CPU_SUPPORTS_32BIT_KERNEL
- + select CPU_SUPPORTS_64BIT_KERNEL
- + select CPU_SUPPORTS_HUGEPAGES
- +
- +config CPU_R5500
- + bool "R5500"
- + depends on SYS_HAS_CPU_R5500
- + select CPU_SUPPORTS_32BIT_KERNEL
- + select CPU_SUPPORTS_64BIT_KERNEL
- + select CPU_SUPPORTS_HUGEPAGES
- + help
- + NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
- + instruction set.
- +
- +config CPU_R6000
- + bool "R6000"
- + depends on SYS_HAS_CPU_R6000
- + select CPU_SUPPORTS_32BIT_KERNEL
- + help
- + MIPS Technologies R6000 and R6000A series processors. Note these
- + processors are extremely rare and the support for them is incomplete.
- +
- +config CPU_NEVADA
- + bool "RM52xx"
- + depends on SYS_HAS_CPU_NEVADA
- + select CPU_SUPPORTS_32BIT_KERNEL
- + select CPU_SUPPORTS_64BIT_KERNEL
- + select CPU_SUPPORTS_HUGEPAGES
- + help
- + QED / PMC-Sierra RM52xx-series ("Nevada") processors.
- +
- +config CPU_R8000
- + bool "R8000"
- + depends on SYS_HAS_CPU_R8000
- + select CPU_HAS_PREFETCH
- + select CPU_SUPPORTS_64BIT_KERNEL
- + help
- + MIPS Technologies R8000 processors. Note these processors are
- + uncommon and the support for them is incomplete.
- +
- +config CPU_R10000
- + bool "R10000"
- + depends on SYS_HAS_CPU_R10000
- + select CPU_HAS_PREFETCH
- + select CPU_SUPPORTS_32BIT_KERNEL
- + select CPU_SUPPORTS_64BIT_KERNEL
- + select CPU_SUPPORTS_HIGHMEM
- + select CPU_SUPPORTS_HUGEPAGES
- + help
- + MIPS Technologies R10000-series processors.
- +
- +config CPU_RM7000
- + bool "RM7000"
- + depends on SYS_HAS_CPU_RM7000
- + select CPU_HAS_PREFETCH
- + select CPU_SUPPORTS_32BIT_KERNEL
- + select CPU_SUPPORTS_64BIT_KERNEL
- + select CPU_SUPPORTS_HIGHMEM
- + select CPU_SUPPORTS_HUGEPAGES
- +
- +config CPU_SB1
- + bool "SB1"
- + depends on SYS_HAS_CPU_SB1
- + select CPU_SUPPORTS_32BIT_KERNEL
- + select CPU_SUPPORTS_64BIT_KERNEL
- + select CPU_SUPPORTS_HIGHMEM
- + select CPU_SUPPORTS_HUGEPAGES
- + select WEAK_ORDERING
- +
- +config CPU_CAVIUM_OCTEON
- + bool "Cavium Octeon processor"
- + depends on SYS_HAS_CPU_CAVIUM_OCTEON
- + select ARCH_SPARSEMEM_ENABLE
- + select CPU_HAS_PREFETCH
- + select CPU_SUPPORTS_64BIT_KERNEL
- + select SYS_SUPPORTS_SMP
- + select NR_CPUS_DEFAULT_16
- + select WEAK_ORDERING
- + select CPU_SUPPORTS_HIGHMEM
- + select CPU_SUPPORTS_HUGEPAGES
- + select LIBFDT
- + select USE_OF
- + help
- + The Cavium Octeon processor is a highly integrated chip containing
- + many ethernet hardware widgets for networking tasks. The processor
- + can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
- + Full details can be found at http://www.caviumnetworks.com.
- +
- +config CPU_BMIPS3300
- + bool "BMIPS3300"
- + depends on SYS_HAS_CPU_BMIPS3300
- + select CPU_BMIPS
- + help
- + Broadcom BMIPS3300 processors.
- +
- +config CPU_BMIPS4350
- + bool "BMIPS4350"
- + depends on SYS_HAS_CPU_BMIPS4350
- + select CPU_BMIPS
- + select SYS_SUPPORTS_SMP
- + select SYS_SUPPORTS_HOTPLUG_CPU
- + help
- + Broadcom BMIPS4350 ("VIPER") processors.
- +
- +config CPU_BMIPS4380
- + bool "BMIPS4380"
- + depends on SYS_HAS_CPU_BMIPS4380
- + select CPU_BMIPS
- + select SYS_SUPPORTS_SMP
- + select SYS_SUPPORTS_HOTPLUG_CPU
- + help
- + Broadcom BMIPS4380 processors.
- +
- +config CPU_BMIPS5000
- + bool "BMIPS5000"
- + depends on SYS_HAS_CPU_BMIPS5000
- + select CPU_BMIPS
- + select CPU_SUPPORTS_HIGHMEM
- + select MIPS_CPU_SCACHE
- + select SYS_SUPPORTS_SMP
- + select SYS_SUPPORTS_HOTPLUG_CPU
- + help
- + Broadcom BMIPS5000 processors.
- +
- +config CPU_XLR
- + bool "Netlogic XLR SoC"
- + depends on SYS_HAS_CPU_XLR
- + select CPU_SUPPORTS_32BIT_KERNEL
- + select CPU_SUPPORTS_64BIT_KERNEL
- + select CPU_SUPPORTS_HIGHMEM
- + select CPU_SUPPORTS_HUGEPAGES
- + select WEAK_ORDERING
- + select WEAK_REORDERING_BEYOND_LLSC
- + help
- + Netlogic Microsystems XLR/XLS processors.
- +
- +config CPU_XLP
- + bool "Netlogic XLP SoC"
- + depends on SYS_HAS_CPU_XLP
- + select CPU_SUPPORTS_32BIT_KERNEL
- + select CPU_SUPPORTS_64BIT_KERNEL
- + select CPU_SUPPORTS_HIGHMEM
- + select WEAK_ORDERING
- + select WEAK_REORDERING_BEYOND_LLSC
- + select CPU_HAS_PREFETCH
- + select CPU_MIPSR2
- + help
- + Netlogic Microsystems XLP processors.
- +endchoice
- +
- +if CPU_LOONGSON2F
- +config CPU_NOP_WORKAROUNDS
- + bool
- +
- +config CPU_JUMP_WORKAROUNDS
- + bool
- +
- +config CPU_LOONGSON2F_WORKAROUNDS
- + bool "Loongson 2F Workarounds"
- + default y
- + select CPU_NOP_WORKAROUNDS
- + select CPU_JUMP_WORKAROUNDS
- + help
- + Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
- + require workarounds. Without workarounds the system may hang
- + unexpectedly. For more information please refer to the gas
- + -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
- +
- + Loongson 2F03 and later have fixed these issues and no workarounds
- + are needed. The workarounds have no significant side effect on them
- + but may decrease the performance of the system so this option should
- + be disabled unless the kernel is intended to be run on 2F01 or 2F02
- + systems.
- +
- + If unsure, please say Y.
- +endif # CPU_LOONGSON2F
- +
- +config SYS_SUPPORTS_ZBOOT
- + bool
- + select HAVE_KERNEL_GZIP
- + select HAVE_KERNEL_BZIP2
- + select HAVE_KERNEL_LZMA
- + select HAVE_KERNEL_LZO
- +
- +config SYS_SUPPORTS_ZBOOT_UART16550
- + bool
- + select SYS_SUPPORTS_ZBOOT
- +
- +config CPU_LOONGSON2
- + bool
- + select CPU_SUPPORTS_32BIT_KERNEL
- + select CPU_SUPPORTS_64BIT_KERNEL
- + select CPU_SUPPORTS_HIGHMEM
- + select CPU_SUPPORTS_HUGEPAGES
- +
- +config CPU_LOONGSON1
- + bool
- + select CPU_MIPS32
- + select CPU_MIPSR2
- + select CPU_HAS_PREFETCH
- + select CPU_SUPPORTS_32BIT_KERNEL
- + select CPU_SUPPORTS_HIGHMEM
- +
- +config CPU_BMIPS
- + bool
- + select CPU_MIPS32
- + select CPU_SUPPORTS_32BIT_KERNEL
- + select DMA_NONCOHERENT
- + select IRQ_CPU
- + select SWAP_IO_SPACE
- + select WEAK_ORDERING
- +
- +config SYS_HAS_CPU_LOONGSON2E
- + bool
- +
- +config SYS_HAS_CPU_LOONGSON2F
- + bool
- + select CPU_SUPPORTS_CPUFREQ
- + select CPU_SUPPORTS_ADDRWINCFG if 64BIT
- + select CPU_SUPPORTS_UNCACHED_ACCELERATED
- +
- +config SYS_HAS_CPU_LOONGSON1B
- + bool
- +
- +config SYS_HAS_CPU_MIPS32_R1
- + bool
- +
- +config SYS_HAS_CPU_MIPS32_R2
- + bool
- +
- +config SYS_HAS_CPU_MIPS64_R1
- + bool
- +
- +config SYS_HAS_CPU_MIPS64_R2
- + bool
- +
- +config SYS_HAS_CPU_R3000
- + bool
- +
- +config SYS_HAS_CPU_TX39XX
- + bool
- +
- +config SYS_HAS_CPU_VR41XX
- + bool
- +
- +config SYS_HAS_CPU_R4300
- + bool
- +
- +config SYS_HAS_CPU_R4X00
- + bool
- +
- +config SYS_HAS_CPU_TX49XX
- + bool
- +
- +config SYS_HAS_CPU_R5000
- + bool
- +
- +config SYS_HAS_CPU_R5432
- + bool
- +
- +config SYS_HAS_CPU_R5500
- + bool
- +
- +config SYS_HAS_CPU_R6000
- + bool
- +
- +config SYS_HAS_CPU_NEVADA
- + bool
- +
- +config SYS_HAS_CPU_R8000
- + bool
- +
- +config SYS_HAS_CPU_R10000
- + bool
- +
- +config SYS_HAS_CPU_RM7000
- + bool
- +
- +config SYS_HAS_CPU_SB1
- + bool
- +
- +config SYS_HAS_CPU_CAVIUM_OCTEON
- + bool
- +
- +config SYS_HAS_CPU_BMIPS3300
- + bool
- +
- +config SYS_HAS_CPU_BMIPS4350
- + bool
- +
- +config SYS_HAS_CPU_BMIPS4380
- + bool
- +
- +config SYS_HAS_CPU_BMIPS5000
- + bool
- +
- +config SYS_HAS_CPU_XLR
- + bool
- +
- +config SYS_HAS_CPU_XLP
- + bool
- +
- +#
- +# CPU may reorder R->R, R->W, W->R, W->W
- +# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
- +#
- +config WEAK_ORDERING
- + bool
- +
- +#
- +# CPU may reorder reads and writes beyond LL/SC
- +# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
- +#
- +config WEAK_REORDERING_BEYOND_LLSC
- + bool
- +endmenu
- +
- +#
- +# These two indicate any level of the MIPS32 and MIPS64 architecture
- +#
- +config CPU_MIPS32
- + bool
- + default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
- +
- +config CPU_MIPS64
- + bool
- + default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
- +
- +#
- +# These two indicate the revision of the architecture, either Release 1 or Release 2
- +#
- +config CPU_MIPSR1
- + bool
- + default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
- +
- +config CPU_MIPSR2
- + bool
- + default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
- +
- +config SYS_SUPPORTS_32BIT_KERNEL
- + bool
- +config SYS_SUPPORTS_64BIT_KERNEL
- + bool
- +config CPU_SUPPORTS_32BIT_KERNEL
- + bool
- +config CPU_SUPPORTS_64BIT_KERNEL
- + bool
- +config CPU_SUPPORTS_CPUFREQ
- + bool
- +config CPU_SUPPORTS_ADDRWINCFG
- + bool
- +config CPU_SUPPORTS_HUGEPAGES
- + bool
- +config CPU_SUPPORTS_UNCACHED_ACCELERATED
- + bool
- +config MIPS_PGD_C0_CONTEXT
- + bool
- + default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
- +
- +#
- +# Set to y for ptrace access to watch registers.
- +#
- +config HARDWARE_WATCHPOINTS
- + bool
- + default y if CPU_MIPSR1 || CPU_MIPSR2
- +
- +menu "Kernel type"
- +
- +choice
- + prompt "Kernel code model"
- + help
- + You should only select this option if you have a workload that
- + actually benefits from 64-bit processing or if your machine has
- + large memory. You will only be presented a single option in this
- + menu if your system does not support both 32-bit and 64-bit kernels.
- +
- +config 32BIT
- + bool "32-bit kernel"
- + depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
- + select TRAD_SIGNALS
- + help
- + Select this option if you want to build a 32-bit kernel.
- +config 64BIT
- + bool "64-bit kernel"
- + depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
- + select HAVE_SYSCALL_WRAPPERS
- + help
- + Select this option if you want to build a 64-bit kernel.
- +
- +endchoice
- +
- +choice
- + prompt "Kernel page size"
- + default PAGE_SIZE_4KB
- +
- +config PAGE_SIZE_4KB
- + bool "4kB"
- + depends on !CPU_LOONGSON2
- + help
- + This option select the standard 4kB Linux page size. On some
- + R3000-family processors this is the only available page size. Using
- + 4kB page size will minimize memory consumption and is therefore
- + recommended for low memory systems.
- +
- +config PAGE_SIZE_8KB
- + bool "8kB"
- + depends on CPU_R8000 || CPU_CAVIUM_OCTEON
- + help
- + Using 8kB page size will result in higher performance kernel at
- + the price of higher memory consumption. This option is available
- + only on R8000 and cnMIPS processors. Note that you will need a
- + suitable Linux distribution to support this.
- +
- +config PAGE_SIZE_16KB
- + bool "16kB"
- + depends on !CPU_R3000 && !CPU_TX39XX
- + help
- + Using 16kB page size will result in higher performance kernel at
- + the price of higher memory consumption. This option is available on
- + all non-R3000 family processors. Note that you will need a suitable
- + Linux distribution to support this.
- +
- +config PAGE_SIZE_32KB
- + bool "32kB"
- + depends on CPU_CAVIUM_OCTEON
- + help
- + Using 32kB page size will result in higher performance kernel at
- + the price of higher memory consumption. This option is available
- + only on cnMIPS cores. Note that you will need a suitable Linux
- + distribution to support this.
- +
- +config PAGE_SIZE_64KB
- + bool "64kB"
- + depends on !CPU_R3000 && !CPU_TX39XX
- + help
- + Using 64kB page size will result in higher performance kernel at
- + the price of higher memory consumption. This option is available on
- + all non-R3000 family processor. Not that at the time of this
- + writing this option is still high experimental.
- +
- +endchoice
- +
- +config FORCE_MAX_ZONEORDER
- + int "Maximum zone order"
- + range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
- + default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
- + range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
- + default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
- + range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
- + default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
- + range 11 64
- + default "11"
- + help
- + The kernel memory allocator divides physically contiguous memory
- + blocks into "zones", where each zone is a power of two number of
- + pages. This option selects the largest power of two that the kernel
- + keeps in the memory allocator. If you need to allocate very large
- + blocks of physically contiguous memory, then you may need to
- + increase this value.
- +
- + This config option is actually maximum order plus one. For example,
- + a value of 11 means that the largest free memory block is 2^10 pages.
- +
- + The page size is not necessarily 4KB. Keep this in mind
- + when choosing a value for this option.
- +
- +config BOARD_SCACHE
- + bool
- +
- +config IP22_CPU_SCACHE
- + bool
- + select BOARD_SCACHE
- +
- +#
- +# Support for a MIPS32 / MIPS64 style S-caches
- +#
- +config MIPS_CPU_SCACHE
- + bool
- + select BOARD_SCACHE
- +
- +config R5000_CPU_SCACHE
- + bool
- + select BOARD_SCACHE
- +
- +config RM7000_CPU_SCACHE
- + bool
- + select BOARD_SCACHE
- +
- +config SIBYTE_DMA_PAGEOPS
- + bool "Use DMA to clear/copy pages"
- + depends on CPU_SB1
- + help
- + Instead of using the CPU to zero and copy pages, use a Data Mover
- + channel. These DMA channels are otherwise unused by the standard
- + SiByte Linux port. Seems to give a small performance benefit.
- +
- +config CPU_HAS_PREFETCH
- + bool
- +
- +config CPU_GENERIC_DUMP_TLB
- + bool
- + default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
- +
- +config CPU_R4K_FPU
- + bool
- + default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
- +
- +config CPU_R4K_CACHE_TLB
- + bool
- + default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
- +
- +choice
- + prompt "MIPS MT options"
- +
- +config MIPS_MT_DISABLED
- + bool "Disable multithreading support."
- + help
- + Use this option if your workload can't take advantage of
- + MIPS hardware multithreading support. On systems that don't have
- + the option of an MT-enabled processor this option will be the only
- + option in this menu.
- +
- +config MIPS_MT_SMP
- + bool "Use 1 TC on each available VPE for SMP"
- + depends on SYS_SUPPORTS_MULTITHREADING
- + select CPU_MIPSR2_IRQ_VI
- + select CPU_MIPSR2_IRQ_EI
- + select MIPS_MT
- + select NR_CPUS_DEFAULT_2
- + select SMP
- + select SYS_SUPPORTS_SCHED_SMT if SMP
- + select SYS_SUPPORTS_SMP
- + select SMP_UP
- + select MIPS_PERF_SHARED_TC_COUNTERS
- + help
- + This is a kernel model which is known a VSMP but lately has been
- + marketesed into SMVP.
- + Virtual SMP uses the processor's VPEs to implement virtual
- + processors. In currently available configuration of the 34K processor
- + this allows for a dual processor. Both processors will share the same
- + primary caches; each will obtain the half of the TLB for it's own
- + exclusive use. For a layman this model can be described as similar to
- + what Intel calls Hyperthreading.
- +
- + For further information see http://www.linux-mips.org/wiki/34K#VSMP
- +
- +config MIPS_MT_SMTC
- + bool "SMTC: Use all TCs on all VPEs for SMP"
- + depends on CPU_MIPS32_R2
- + #depends on CPU_MIPS64_R2 # once there is hardware ...
- + depends on SYS_SUPPORTS_MULTITHREADING
- + select CPU_MIPSR2_IRQ_VI
- + select CPU_MIPSR2_IRQ_EI
- + select MIPS_MT
- + select NR_CPUS_DEFAULT_8
- + select SMP
- + select SYS_SUPPORTS_SMP
- + select SMP_UP
- + help
- + This is a kernel model which is known a SMTC or lately has been
- + marketesed into SMVP.
- + is presenting the available TC's of the core as processors to Linux.
- + On currently available 34K processors this means a Linux system will
- + see up to 5 processors. The implementation of the SMTC kernel differs
- + significantly from VSMP and cannot efficiently coexist in the same
- + kernel binary so the choice between VSMP and SMTC is a compile time
- + decision.
- +
- + For further information see http://www.linux-mips.org/wiki/34K#SMTC
- +
- +endchoice
- +
- +config MIPS_MT
- + bool
- +
- +config SCHED_SMT
- + bool "SMT (multithreading) scheduler support"
- + depends on SYS_SUPPORTS_SCHED_SMT
- + default n
- + help
- + SMT scheduler support improves the CPU scheduler's decision making
- + when dealing with MIPS MT enabled cores at a cost of slightly
- + increased overhead in some places. If unsure say N here.
- +
- +config SYS_SUPPORTS_SCHED_SMT
- + bool
- +
- +config SYS_SUPPORTS_MULTITHREADING
- + bool
- +
- +config MIPS_MT_FPAFF
- + bool "Dynamic FPU affinity for FP-intensive threads"
- + default y
- + depends on MIPS_MT_SMP || MIPS_MT_SMTC
- +
- +config MIPS_VPE_LOADER
- + bool "VPE loader support."
- + depends on SYS_SUPPORTS_MULTITHREADING
- + select CPU_MIPSR2_IRQ_VI
- + select CPU_MIPSR2_IRQ_EI
- + select MIPS_MT
- + help
- + Includes a loader for loading an elf relocatable object
- + onto another VPE and running it.
- +
- +config MIPS_MT_SMTC_IM_BACKSTOP
- + bool "Use per-TC register bits as backstop for inhibited IM bits"
- + depends on MIPS_MT_SMTC
- + default n
- + help
- + To support multiple TC microthreads acting as "CPUs" within
- + a VPE, VPE-wide interrupt mask bits must be specially manipulated
- + during interrupt handling. To support legacy drivers and interrupt
- + controller management code, SMTC has a "backstop" to track and
- + if necessary restore the interrupt mask. This has some performance
- + impact on interrupt service overhead.
- +
- +config MIPS_MT_SMTC_IRQAFF
- + bool "Support IRQ affinity API"
- + depends on MIPS_MT_SMTC
- + default n
- + help
- + Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
- + for SMTC Linux kernel. Requires platform support, of which
- + an example can be found in the MIPS kernel i8259 and Malta
- + platform code. Adds some overhead to interrupt dispatch, and
- + should be used only if you know what you are doing.
- +
- +config MIPS_VPE_LOADER_TOM
- + bool "Load VPE program into memory hidden from linux"
- + depends on MIPS_VPE_LOADER
- + default y
- + help
- + The loader can use memory that is present but has been hidden from
- + Linux using the kernel command line option "mem=xxMB". It's up to
- + you to ensure the amount you put in the option and the space your
- + program requires is less or equal to the amount physically present.
- +
- +# this should possibly be in drivers/char, but it is rather cpu related. Hmmm
- +config MIPS_VPE_APSP_API
- + bool "Enable support for AP/SP API (RTLX)"
- + depends on MIPS_VPE_LOADER
- + help
- +
- +config MIPS_CMP
- + bool "MIPS CMP framework support"
- + depends on SYS_SUPPORTS_MIPS_CMP
- + select SYNC_R4K
- + select SYS_SUPPORTS_SMP
- + select SYS_SUPPORTS_SCHED_SMT if SMP
- + select WEAK_ORDERING
- + default n
- + help
- + This is a placeholder option for the GCMP work. It will need to
- + be handled differently...
- +
- +config SB1_PASS_1_WORKAROUNDS
- + bool
- + depends on CPU_SB1_PASS_1
- + default y
- +
- +config SB1_PASS_2_WORKAROUNDS
- + bool
- + depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
- + default y
- +
- +config SB1_PASS_2_1_WORKAROUNDS
- + bool
- + depends on CPU_SB1 && CPU_SB1_PASS_2
- + default y
- +
- +config 64BIT_PHYS_ADDR
- + bool
- +
- +config ARCH_PHYS_ADDR_T_64BIT
- + def_bool 64BIT_PHYS_ADDR
- +
- +config CPU_HAS_SMARTMIPS
- + depends on SYS_SUPPORTS_SMARTMIPS
- + bool "Support for the SmartMIPS ASE"
- + help
- + SmartMIPS is a extension of the MIPS32 architecture aimed at
- + increased security at both hardware and software level for
- + smartcards. Enabling this option will allow proper use of the
- + SmartMIPS instructions by Linux applications. However a kernel with
- + this option will not work on a MIPS core without SmartMIPS core. If
- + you don't know you probably don't have SmartMIPS and should say N
- + here.
- +
- +config CPU_HAS_WB
- + bool
- +
- +config XKS01
- + bool
- +
- +#
- +# Vectored interrupt mode is an R2 feature
- +#
- +config CPU_MIPSR2_IRQ_VI
- + bool
- +
- +#
- +# Extended interrupt mode is an R2 feature
- +#
- +config CPU_MIPSR2_IRQ_EI
- + bool
- +
- +config CPU_HAS_SYNC
- + bool
- + depends on !CPU_R3000
- + default y
- +
- +#
- +# CPU non-features
- +#
- +config CPU_DADDI_WORKAROUNDS
- + bool
- +
- +config CPU_R4000_WORKAROUNDS
- + bool
- + select CPU_R4400_WORKAROUNDS
- +
- +config CPU_R4400_WORKAROUNDS
- + bool
- +
- +#
- +# - Highmem only makes sense for the 32-bit kernel.
- +# - The current highmem code will only work properly on physically indexed
- +# caches such as R3000, SB1, R7000 or those that look like they're virtually
- +# indexed such as R4000/R4400 SC and MC versions or R10000. So for the
- +# moment we protect the user and offer the highmem option only on machines
- +# where it's known to be safe. This will not offer highmem on a few systems
- +# such as MIPS32 and MIPS64 CPUs which may have virtual and physically
- +# indexed CPUs but we're playing safe.
- +# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
- +# know they might have memory configurations that could make use of highmem
- +# support.
- +#
- +config HIGHMEM
- + bool "High Memory Support"
- + depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM
- +
- +config CPU_SUPPORTS_HIGHMEM
- + bool
- +
- +config SYS_SUPPORTS_HIGHMEM
- + bool
- +
- +config SYS_SUPPORTS_SMARTMIPS
- + bool
- +
- +config ARCH_FLATMEM_ENABLE
- + def_bool y
- + depends on !NUMA && !CPU_LOONGSON2
- +
- +config ARCH_DISCONTIGMEM_ENABLE
- + bool
- + default y if SGI_IP27
- + help
- + Say Y to support efficient handling of discontiguous physical memory,
- + for architectures which are either NUMA (Non-Uniform Memory Access)
- + or have huge holes in the physical address space for other reasons.
- + See <file:Documentation/vm/numa> for more.
- +
- +config ARCH_SPARSEMEM_ENABLE
- + bool
- + select SPARSEMEM_STATIC
- +
- +config NUMA
- + bool "NUMA Support"
- + depends on SYS_SUPPORTS_NUMA
- + help
- + Say Y to compile the kernel to support NUMA (Non-Uniform Memory
- + Access). This option improves performance on systems with more
- + than two nodes; on two node systems it is generally better to
- + leave it disabled; on single node systems disable this option
- + disabled.
- +
- +config SYS_SUPPORTS_NUMA
- + bool
- +
- +config NODES_SHIFT
- + int
- + default "6"
- + depends on NEED_MULTIPLE_NODES
- +
- +config HW_PERF_EVENTS
- + bool "Enable hardware performance counter support for perf events"
- + depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
- + default y
- + help
- + Enable hardware performance counter support for perf events. If
- + disabled, perf events will use software events only.
- +
- +source "mm/Kconfig"
- +
- +config SMP
- + bool "Multi-Processing support"
- + depends on SYS_SUPPORTS_SMP
- + select USE_GENERIC_SMP_HELPERS
- + help
- + This enables support for systems with more than one CPU. If you have
- + a system with only one CPU, like most personal computers, say N. If
- + you have a system with more than one CPU, say Y.
- +
- + If you say N here, the kernel will run on single and multiprocessor
- + machines, but will use only one CPU of a multiprocessor machine. If
- + you say Y here, the kernel will run on many, but not all,
- + singleprocessor machines. On a singleprocessor machine, the kernel
- + will run faster if you say N here.
- +
- + People using multiprocessor machines who say Y here should also say
- + Y to "Enhanced Real Time Clock Support", below.
- +
- + See also the SMP-HOWTO available at
- + <http://www.tldp.org/docs.html#howto>.
- +
- + If you don't know what to do here, say N.
- +
- +config SMP_UP
- + bool
- +
- +config SYS_SUPPORTS_MIPS_CMP
- + bool
- +
- +config SYS_SUPPORTS_SMP
- + bool
- +
- +config NR_CPUS_DEFAULT_1
- + bool
- +
- +config NR_CPUS_DEFAULT_2
- + bool
- +
- +config NR_CPUS_DEFAULT_4
- + bool
- +
- +config NR_CPUS_DEFAULT_8
- + bool
- +
- +config NR_CPUS_DEFAULT_16
- + bool
- +
- +config NR_CPUS_DEFAULT_32
- + bool
- +
- +config NR_CPUS_DEFAULT_64
- + bool
- +
- +config NR_CPUS
- + int "Maximum number of CPUs (2-64)"
- + range 1 64 if NR_CPUS_DEFAULT_1
- + depends on SMP
- + default "1" if NR_CPUS_DEFAULT_1
- + default "2" if NR_CPUS_DEFAULT_2
- + default "4" if NR_CPUS_DEFAULT_4
- + default "8" if NR_CPUS_DEFAULT_8
- + default "16" if NR_CPUS_DEFAULT_16
- + default "32" if NR_CPUS_DEFAULT_32
- + default "64" if NR_CPUS_DEFAULT_64
- + help
- + This allows you to specify the maximum number of CPUs which this
- + kernel will support. The maximum supported value is 32 for 32-bit
- + kernel and 64 for 64-bit kernels; the minimum value which makes
- + sense is 1 for Qemu (useful only for kernel debugging purposes)
- + and 2 for all others.
- +
- + This is purely to save memory - each supported CPU adds
- + approximately eight kilobytes to the kernel image. For best
- + performance should round up your number of processors to the next
- + power of two.
- +
- +config MIPS_PERF_SHARED_TC_COUNTERS
- + bool
- +
- +#
- +# Timer Interrupt Frequency Configuration
- +#
- +
- +choice
- + prompt "Timer frequency"
- + default HZ_250
- + help
- + Allows the configuration of the timer frequency.
- +
- + config HZ_48
- + bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
- +
- + config HZ_100
- + bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
- +
- + config HZ_128
- + bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
- +
- + config HZ_250
- + bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
- +
- + config HZ_256
- + bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
- +
- + config HZ_1000
- + bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
- +
- + config HZ_1024
- + bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
- +
- +endchoice
- +
- +config SYS_SUPPORTS_48HZ
- + bool
- +
- +config SYS_SUPPORTS_100HZ
- + bool
- +
- +config SYS_SUPPORTS_128HZ
- + bool
- +
- +config SYS_SUPPORTS_250HZ
- + bool
- +
- +config SYS_SUPPORTS_256HZ
- + bool
- +
- +config SYS_SUPPORTS_1000HZ
- + bool
- +
- +config SYS_SUPPORTS_1024HZ
- + bool
- +
- +config SYS_SUPPORTS_ARBIT_HZ
- + bool
- + default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
- + !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
- + !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
- + !SYS_SUPPORTS_1024HZ
- +
- +config HZ
- + int
- + default 48 if HZ_48
- + default 100 if HZ_100
- + default 128 if HZ_128
- + default 250 if HZ_250
- + default 256 if HZ_256
- + default 1000 if HZ_1000
- + default 1024 if HZ_1024
- +
- +source "kernel/Kconfig.preempt"
- +
- +config KEXEC
- + bool "Kexec system call"
- + help
- + kexec is a system call that implements the ability to shutdown your
- + current kernel, and to start another kernel. It is like a reboot
- + but it is independent of the system firmware. And like a reboot
- + you can start any kernel with it, not just Linux.
- +
- + The name comes from the similarity to the exec system call.
- +
- + It is an ongoing process to be certain the hardware in a machine
- + is properly shutdown, so do not be surprised if this code does not
- + initially work for you. It may help to enable device hotplugging
- + support. As of this writing the exact hardware interface is
- + strongly in flux, so no good recommendation can be made.
- +
- +config CRASH_DUMP
- + bool "Kernel crash dumps"
- + help
- + Generate crash dump after being started by kexec.
- + This should be normally only set in special crash dump kernels
- + which are loaded in the main kernel with kexec-tools into
- + a specially reserved region and then later executed after
- + a crash by kdump/kexec. The crash dump kernel must be compiled
- + to a memory address not used by the main kernel or firmware using
- + PHYSICAL_START.
- +
- +config PHYSICAL_START
- + hex "Physical address where the kernel is loaded"
- + default "0xffffffff84000000" if 64BIT
- + default "0x84000000" if 32BIT
- + depends on CRASH_DUMP
- + help
- + This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
- + If you plan to use kernel for capturing the crash dump change
- + this value to start of the reserved region (the "X" value as
- + specified in the "crashkernel=YM@XM" command line boot parameter
- + passed to the panic-ed kernel).
- +
- +config SECCOMP
- + bool "Enable seccomp to safely compute untrusted bytecode"
- + depends on PROC_FS
- + default y
- + help
- + This kernel feature is useful for number crunching applications
- + that may need to compute untrusted bytecode during their
- + execution. By using pipes or other transports made available to
- + the process as file descriptors supporting the read/write
- + syscalls, it's possible to isolate those applications in
- + their own address space using seccomp. Once seccomp is
- + enabled via /proc/<pid>/seccomp, it cannot be disabled
- + and the task is only allowed to execute a few safe syscalls
- + defined by each seccomp mode.
- +
- + If unsure, say Y. Only embedded should say N here.
- +
- +config USE_OF
- + bool
- + select OF
- + select OF_EARLY_FLATTREE
- + select IRQ_DOMAIN
- +
- +endmenu
- +
- +config LOCKDEP_SUPPORT
- + bool
- + default y
- +
- +config STACKTRACE_SUPPORT
- + bool
- + default y
- +
- +source "init/Kconfig"
- +
- +source "kernel/Kconfig.freezer"
- +
- +menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
- +
- +config HW_HAS_EISA
- + bool
- +config HW_HAS_PCI
- + bool
- +
- +config PCI
- + bool "Support for PCI controller"
- + depends on HW_HAS_PCI
- + select PCI_DOMAINS
- + select GENERIC_PCI_IOMAP
- + select NO_GENERIC_PCI_IOPORT_MAP
- + help
- + Find out whether you have a PCI motherboard. PCI is the name of a
- + bus system, i.e. the way the CPU talks to the other stuff inside
- + your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
- + say Y, otherwise N.
- +
- +config PCI_DOMAINS
- + bool
- +
- +source "drivers/pci/Kconfig"
- +
- +source "drivers/pci/pcie/Kconfig"
- +
- +#
- +# ISA support is now enabled via select. Too many systems still have the one
- +# or other ISA chip on the board that users don't know about so don't expect
- +# users to choose the right thing ...
- +#
- +config ISA
- + bool
- +
- +config EISA
- + bool "EISA support"
- + depends on HW_HAS_EISA
- + select ISA
- + select GENERIC_ISA_DMA
- + ---help---
- + The Extended Industry Standard Architecture (EISA) bus was
- + developed as an open alternative to the IBM MicroChannel bus.
- +
- + The EISA bus provided some of the features of the IBM MicroChannel
- + bus while maintaining backward compatibility with cards made for
- + the older ISA bus. The EISA bus saw limited use between 1988 and
- + 1995 when it was made obsolete by the PCI bus.
- +
- + Say Y here if you are building a kernel for an EISA-based machine.
- +
- + Otherwise, say N.
- +
- +source "drivers/eisa/Kconfig"
- +
- +config TC
- + bool "TURBOchannel support"
- + depends on MACH_DECSTATION
- + help
- + TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
- + processors. TURBOchannel programming specifications are available
- + at:
- + <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
- + and:
- + <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
- + Linux driver support status is documented at:
- + <http://www.linux-mips.org/wiki/DECstation>
- +
- +config MMU
- + bool
- + default y
- +
- +config I8253
- + bool
- + select CLKSRC_I8253
- + select CLKEVT_I8253
- + select MIPS_EXTERNAL_TIMER
- +
- +config ZONE_DMA32
- + bool
- +
- +source "drivers/pcmcia/Kconfig"
- +
- +source "drivers/pci/hotplug/Kconfig"
- +
- +config RAPIDIO
- + bool "RapidIO support"
- + depends on PCI
- + default n
- + help
- + If you say Y here, the kernel will include drivers and
- + infrastructure code to support RapidIO interconnect devices.
- +
- +source "drivers/rapidio/Kconfig"
- +
- +endmenu
- +
- +menu "Executable file formats"
- +
- +source "fs/Kconfig.binfmt"
- +
- +config TRAD_SIGNALS
- + bool
- +
- +config MIPS32_COMPAT
- + bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
- + depends on 64BIT
- + help
- + Select this option if you want Linux/MIPS 32-bit binary
- + compatibility. Since all software available for Linux/MIPS is
- + currently 32-bit you should say Y here.
- +
- +config COMPAT
- + bool
- + depends on MIPS32_COMPAT
- + select ARCH_WANT_OLD_COMPAT_IPC
- + default y
- +
- +config SYSVIPC_COMPAT
- + bool
- + depends on COMPAT && SYSVIPC
- + default y
- +
- +config MIPS32_O32
- + bool "Kernel support for o32 binaries"
- + depends on MIPS32_COMPAT
- + help
- + Select this option if you want to run o32 binaries. These are pure
- + 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
- + existing binaries are in this format.
- +
- + If unsure, say Y.
- +
- +config MIPS32_N32
- + bool "Kernel support for n32 binaries"
- + depends on MIPS32_COMPAT
- + help
- + Select this option if you want to run n32 binaries. These are
- + 64-bit binaries using 32-bit quantities for addressing and certain
- + data that would normally be 64-bit. They are used in special
- + cases.
- +
- + If unsure, say N.
- +
- +config BINFMT_ELF32
- + bool
- + default y if MIPS32_O32 || MIPS32_N32
- +
- +endmenu
- +
- +menu "Power management options"
- +
- +config ARCH_HIBERNATION_POSSIBLE
- + def_bool y
- + depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
- +
- +config ARCH_SUSPEND_POSSIBLE
- + def_bool y
- + depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
- +
- +source "kernel/power/Kconfig"
- +
- +endmenu
- +
- +source "arch/mips/kernel/cpufreq/Kconfig"
- +
- +source "net/Kconfig"
- +
- +source "drivers/Kconfig"
- +
- +source "drivers/firmware/Kconfig"
- +
- +source "fs/Kconfig"
- +
- +source "arch/mips/Kconfig.debug"
- +
- +source "security/Kconfig"
- +
- +source "crypto/Kconfig"
- +
- +source "lib/Kconfig"
- diff -Nur linux-3.9.11.orig/arch/x86/Kconfig linux-3.9.11/arch/x86/Kconfig
- --- linux-3.9.11.orig/arch/x86/Kconfig 2013-07-21 02:16:17.000000000 +0200
- +++ linux-3.9.11/arch/x86/Kconfig 2013-09-12 07:26:20.000000000 +0200
- @@ -99,7 +99,6 @@
- select GENERIC_SMP_IDLE_THREAD
- select ARCH_WANT_IPC_PARSE_VERSION if X86_32
- select HAVE_ARCH_SECCOMP_FILTER
- - select BUILDTIME_EXTABLE_SORT
- select GENERIC_CMOS_UPDATE
- select CLOCKSOURCE_WATCHDOG
- select GENERIC_CLOCKEVENTS
- diff -Nur linux-3.9.11.orig/arch/x86/Kconfig.orig linux-3.9.11/arch/x86/Kconfig.orig
- --- linux-3.9.11.orig/arch/x86/Kconfig.orig 1970-01-01 01:00:00.000000000 +0100
- +++ linux-3.9.11/arch/x86/Kconfig.orig 2013-07-21 02:16:17.000000000 +0200
- @@ -0,0 +1,2351 @@
- +# Select 32 or 64 bit
- +config 64BIT
- + bool "64-bit kernel" if ARCH = "x86"
- + default ARCH != "i386"
- + ---help---
- + Say yes to build a 64-bit kernel - formerly known as x86_64
- + Say no to build a 32-bit kernel - formerly known as i386
- +
- +config X86_32
- + def_bool y
- + depends on !64BIT
- + select CLKSRC_I8253
- + select HAVE_UID16
- +
- +config X86_64
- + def_bool y
- + depends on 64BIT
- + select X86_DEV_DMA_OPS
- +
- +### Arch settings
- +config X86
- + def_bool y
- + select HAVE_AOUT if X86_32
- + select HAVE_UNSTABLE_SCHED_CLOCK
- + select ARCH_SUPPORTS_NUMA_BALANCING
- + select ARCH_WANTS_PROT_NUMA_PROT_NONE
- + select HAVE_IDE
- + select HAVE_OPROFILE
- + select HAVE_PCSPKR_PLATFORM
- + select HAVE_PERF_EVENTS
- + select HAVE_IOREMAP_PROT
- + select HAVE_KPROBES
- + select HAVE_MEMBLOCK
- + select HAVE_MEMBLOCK_NODE_MAP
- + select ARCH_DISCARD_MEMBLOCK
- + select ARCH_WANT_OPTIONAL_GPIOLIB
- + select ARCH_WANT_FRAME_POINTERS
- + select HAVE_DMA_ATTRS
- + select HAVE_DMA_CONTIGUOUS if !SWIOTLB
- + select HAVE_KRETPROBES
- + select HAVE_OPTPROBES
- + select HAVE_KPROBES_ON_FTRACE
- + select HAVE_FTRACE_MCOUNT_RECORD
- + select HAVE_FENTRY if X86_64
- + select HAVE_C_RECORDMCOUNT
- + select HAVE_DYNAMIC_FTRACE
- + select HAVE_DYNAMIC_FTRACE_WITH_REGS
- + select HAVE_FUNCTION_TRACER
- + select HAVE_FUNCTION_GRAPH_TRACER
- + select HAVE_FUNCTION_GRAPH_FP_TEST
- + select HAVE_FUNCTION_TRACE_MCOUNT_TEST
- + select HAVE_SYSCALL_TRACEPOINTS
- + select SYSCTL_EXCEPTION_TRACE
- + select HAVE_KVM
- + select HAVE_ARCH_KGDB
- + select HAVE_ARCH_TRACEHOOK
- + select HAVE_GENERIC_DMA_COHERENT if X86_32
- + select HAVE_EFFICIENT_UNALIGNED_ACCESS
- + select USER_STACKTRACE_SUPPORT
- + select HAVE_REGS_AND_STACK_ACCESS_API
- + select HAVE_DMA_API_DEBUG
- + select HAVE_KERNEL_GZIP
- + select HAVE_KERNEL_BZIP2
- + select HAVE_KERNEL_LZMA
- + select HAVE_KERNEL_XZ
- + select HAVE_KERNEL_LZO
- + select HAVE_HW_BREAKPOINT
- + select HAVE_MIXED_BREAKPOINTS_REGS
- + select PERF_EVENTS
- + select HAVE_PERF_EVENTS_NMI
- + select HAVE_PERF_REGS
- + select HAVE_PERF_USER_STACK_DUMP
- + select HAVE_DEBUG_KMEMLEAK
- + select ANON_INODES
- + select HAVE_ALIGNED_STRUCT_PAGE if SLUB
- + select HAVE_CMPXCHG_LOCAL
- + select HAVE_CMPXCHG_DOUBLE
- + select HAVE_ARCH_KMEMCHECK
- + select HAVE_USER_RETURN_NOTIFIER
- + select ARCH_BINFMT_ELF_RANDOMIZE_PIE
- + select HAVE_ARCH_JUMP_LABEL
- + select HAVE_TEXT_POKE_SMP
- + select HAVE_GENERIC_HARDIRQS
- + select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
- + select SPARSE_IRQ
- + select GENERIC_FIND_FIRST_BIT
- + select GENERIC_IRQ_PROBE
- + select GENERIC_PENDING_IRQ if SMP
- + select GENERIC_IRQ_SHOW
- + select GENERIC_CLOCKEVENTS_MIN_ADJUST
- + select IRQ_FORCED_THREADING
- + select USE_GENERIC_SMP_HELPERS if SMP
- + select HAVE_BPF_JIT if X86_64
- + select HAVE_ARCH_TRANSPARENT_HUGEPAGE
- + select CLKEVT_I8253
- + select ARCH_HAVE_NMI_SAFE_CMPXCHG
- + select GENERIC_IOMAP
- + select DCACHE_WORD_ACCESS
- + select GENERIC_SMP_IDLE_THREAD
- + select ARCH_WANT_IPC_PARSE_VERSION if X86_32
- + select HAVE_ARCH_SECCOMP_FILTER
- + select BUILDTIME_EXTABLE_SORT
- + select GENERIC_CMOS_UPDATE
- + select CLOCKSOURCE_WATCHDOG
- + select GENERIC_CLOCKEVENTS
- + select ARCH_CLOCKSOURCE_DATA if X86_64
- + select GENERIC_CLOCKEVENTS_BROADCAST if X86_64 || (X86_32 && X86_LOCAL_APIC)
- + select GENERIC_TIME_VSYSCALL if X86_64
- + select KTIME_SCALAR if X86_32
- + select GENERIC_STRNCPY_FROM_USER
- + select GENERIC_STRNLEN_USER
- + select HAVE_CONTEXT_TRACKING if X86_64
- + select HAVE_IRQ_TIME_ACCOUNTING
- + select VIRT_TO_BUS
- + select MODULES_USE_ELF_REL if X86_32
- + select MODULES_USE_ELF_RELA if X86_64
- + select CLONE_BACKWARDS if X86_32
- + select ARCH_USE_BUILTIN_BSWAP
- + select OLD_SIGSUSPEND3 if X86_32 || IA32_EMULATION
- + select OLD_SIGACTION if X86_32
- + select COMPAT_OLD_SIGACTION if IA32_EMULATION
- +
- +config INSTRUCTION_DECODER
- + def_bool y
- + depends on KPROBES || PERF_EVENTS || UPROBES
- +
- +config OUTPUT_FORMAT
- + string
- + default "elf32-i386" if X86_32
- + default "elf64-x86-64" if X86_64
- +
- +config ARCH_DEFCONFIG
- + string
- + default "arch/x86/configs/i386_defconfig" if X86_32
- + default "arch/x86/configs/x86_64_defconfig" if X86_64
- +
- +config LOCKDEP_SUPPORT
- + def_bool y
- +
- +config STACKTRACE_SUPPORT
- + def_bool y
- +
- +config HAVE_LATENCYTOP_SUPPORT
- + def_bool y
- +
- +config MMU
- + def_bool y
- +
- +config SBUS
- + bool
- +
- +config NEED_DMA_MAP_STATE
- + def_bool y
- + depends on X86_64 || INTEL_IOMMU || DMA_API_DEBUG
- +
- +config NEED_SG_DMA_LENGTH
- + def_bool y
- +
- +config GENERIC_ISA_DMA
- + def_bool y
- + depends on ISA_DMA_API
- +
- +config GENERIC_BUG
- + def_bool y
- + depends on BUG
- + select GENERIC_BUG_RELATIVE_POINTERS if X86_64
- +
- +config GENERIC_BUG_RELATIVE_POINTERS
- + bool
- +
- +config GENERIC_HWEIGHT
- + def_bool y
- +
- +config GENERIC_GPIO
- + bool
- +
- +config ARCH_MAY_HAVE_PC_FDC
- + def_bool y
- + depends on ISA_DMA_API
- +
- +config RWSEM_XCHGADD_ALGORITHM
- + def_bool y
- +
- +config GENERIC_CALIBRATE_DELAY
- + def_bool y
- +
- +config ARCH_HAS_CPU_RELAX
- + def_bool y
- +
- +config ARCH_HAS_DEFAULT_IDLE
- + def_bool y
- +
- +config ARCH_HAS_CACHE_LINE_SIZE
- + def_bool y
- +
- +config ARCH_HAS_CPU_AUTOPROBE
- + def_bool y
- +
- +config HAVE_SETUP_PER_CPU_AREA
- + def_bool y
- +
- +config NEED_PER_CPU_EMBED_FIRST_CHUNK
- + def_bool y
- +
- +config NEED_PER_CPU_PAGE_FIRST_CHUNK
- + def_bool y
- +
- +config ARCH_HIBERNATION_POSSIBLE
- + def_bool y
- +
- +config ARCH_SUSPEND_POSSIBLE
- + def_bool y
- +
- +config ZONE_DMA32
- + bool
- + default X86_64
- +
- +config AUDIT_ARCH
- + bool
- + default X86_64
- +
- +config ARCH_SUPPORTS_OPTIMIZED_INLINING
- + def_bool y
- +
- +config ARCH_SUPPORTS_DEBUG_PAGEALLOC
- + def_bool y
- +
- +config HAVE_INTEL_TXT
- + def_bool y
- + depends on INTEL_IOMMU && ACPI
- +
- +config X86_32_SMP
- + def_bool y
- + depends on X86_32 && SMP
- +
- +config X86_64_SMP
- + def_bool y
- + depends on X86_64 && SMP
- +
- +config X86_HT
- + def_bool y
- + depends on SMP
- +
- +config X86_32_LAZY_GS
- + def_bool y
- + depends on X86_32 && !CC_STACKPROTECTOR
- +
- +config ARCH_HWEIGHT_CFLAGS
- + string
- + default "-fcall-saved-ecx -fcall-saved-edx" if X86_32
- + default "-fcall-saved-rdi -fcall-saved-rsi -fcall-saved-rdx -fcall-saved-rcx -fcall-saved-r8 -fcall-saved-r9 -fcall-saved-r10 -fcall-saved-r11" if X86_64
- +
- +config ARCH_CPU_PROBE_RELEASE
- + def_bool y
- + depends on HOTPLUG_CPU
- +
- +config ARCH_SUPPORTS_UPROBES
- + def_bool y
- +
- +source "init/Kconfig"
- +source "kernel/Kconfig.freezer"
- +
- +menu "Processor type and features"
- +
- +config ZONE_DMA
- + bool "DMA memory allocation support" if EXPERT
- + default y
- + help
- + DMA memory allocation support allows devices with less than 32-bit
- + addressing to allocate within the first 16MB of address space.
- + Disable if no such devices will be used.
- +
- + If unsure, say Y.
- +
- +config SMP
- + bool "Symmetric multi-processing support"
- + ---help---
- + This enables support for systems with more than one CPU. If you have
- + a system with only one CPU, like most personal computers, say N. If
- + you have a system with more than one CPU, say Y.
- +
- + If you say N here, the kernel will run on single and multiprocessor
- + machines, but will use only one CPU of a multiprocessor machine. If
- + you say Y here, the kernel will run on many, but not all,
- + singleprocessor machines. On a singleprocessor machine, the kernel
- + will run faster if you say N here.
- +
- + Note that if you say Y here and choose architecture "586" or
- + "Pentium" under "Processor family", the kernel will not work on 486
- + architectures. Similarly, multiprocessor kernels for the "PPro"
- + architecture may not work on all Pentium based boards.
- +
- + People using multiprocessor machines who say Y here should also say
- + Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
- + Management" code will be disabled if you say Y here.
- +
- + See also <file:Documentation/x86/i386/IO-APIC.txt>,
- + <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
- + <http://www.tldp.org/docs.html#howto>.
- +
- + If you don't know what to do here, say N.
- +
- +config X86_X2APIC
- + bool "Support x2apic"
- + depends on X86_LOCAL_APIC && X86_64 && IRQ_REMAP
- + ---help---
- + This enables x2apic support on CPUs that have this feature.
- +
- + This allows 32-bit apic IDs (so it can support very large systems),
- + and accesses the local apic via MSRs not via mmio.
- +
- + If you don't know what to do here, say N.
- +
- +config X86_MPPARSE
- + bool "Enable MPS table" if ACPI || SFI
- + default y
- + depends on X86_LOCAL_APIC
- + ---help---
- + For old smp systems that do not have proper acpi support. Newer systems
- + (esp with 64bit cpus) with acpi support, MADT and DSDT will override it
- +
- +config X86_BIGSMP
- + bool "Support for big SMP systems with more than 8 CPUs"
- + depends on X86_32 && SMP
- + ---help---
- + This option is needed for the systems that have more than 8 CPUs
- +
- +config GOLDFISH
- + def_bool y
- + depends on X86_GOLDFISH
- +
- +if X86_32
- +config X86_EXTENDED_PLATFORM
- + bool "Support for extended (non-PC) x86 platforms"
- + default y
- + ---help---
- + If you disable this option then the kernel will only support
- + standard PC platforms. (which covers the vast majority of
- + systems out there.)
- +
- + If you enable this option then you'll be able to select support
- + for the following (non-PC) 32 bit x86 platforms:
- + AMD Elan
- + NUMAQ (IBM/Sequent)
- + RDC R-321x SoC
- + SGI 320/540 (Visual Workstation)
- + STA2X11-based (e.g. Northville)
- + Summit/EXA (IBM x440)
- + Unisys ES7000 IA32 series
- + Moorestown MID devices
- +
- + If you have one of these systems, or if you want to build a
- + generic distribution kernel, say Y here - otherwise say N.
- +endif
- +
- +if X86_64
- +config X86_EXTENDED_PLATFORM
- + bool "Support for extended (non-PC) x86 platforms"
- + default y
- + ---help---
- + If you disable this option then the kernel will only support
- + standard PC platforms. (which covers the vast majority of
- + systems out there.)
- +
- + If you enable this option then you'll be able to select support
- + for the following (non-PC) 64 bit x86 platforms:
- + Numascale NumaChip
- + ScaleMP vSMP
- + SGI Ultraviolet
- +
- + If you have one of these systems, or if you want to build a
- + generic distribution kernel, say Y here - otherwise say N.
- +endif
- +# This is an alphabetically sorted list of 64 bit extended platforms
- +# Please maintain the alphabetic order if and when there are additions
- +config X86_NUMACHIP
- + bool "Numascale NumaChip"
- + depends on X86_64
- + depends on X86_EXTENDED_PLATFORM
- + depends on NUMA
- + depends on SMP
- + depends on X86_X2APIC
- + depends on PCI_MMCONFIG
- + ---help---
- + Adds support for Numascale NumaChip large-SMP systems. Needed to
- + enable more than ~168 cores.
- + If you don't have one of these, you should say N here.
- +
- +config X86_VSMP
- + bool "ScaleMP vSMP"
- + select PARAVIRT_GUEST
- + select PARAVIRT
- + depends on X86_64 && PCI
- + depends on X86_EXTENDED_PLATFORM
- + depends on SMP
- + ---help---
- + Support for ScaleMP vSMP systems. Say 'Y' here if this kernel is
- + supposed to run on these EM64T-based machines. Only choose this option
- + if you have one of these machines.
- +
- +config X86_UV
- + bool "SGI Ultraviolet"
- + depends on X86_64
- + depends on X86_EXTENDED_PLATFORM
- + depends on NUMA
- + depends on X86_X2APIC
- + ---help---
- + This option is needed in order to support SGI Ultraviolet systems.
- + If you don't have one of these, you should say N here.
- +
- +# Following is an alphabetically sorted list of 32 bit extended platforms
- +# Please maintain the alphabetic order if and when there are additions
- +
- +config X86_GOLDFISH
- + bool "Goldfish (Virtual Platform)"
- + depends on X86_32
- + ---help---
- + Enable support for the Goldfish virtual platform used primarily
- + for Android development. Unless you are building for the Android
- + Goldfish emulator say N here.
- +
- +config X86_INTEL_CE
- + bool "CE4100 TV platform"
- + depends on PCI
- + depends on PCI_GODIRECT
- + depends on X86_32
- + depends on X86_EXTENDED_PLATFORM
- + select X86_REBOOTFIXUPS
- + select OF
- + select OF_EARLY_FLATTREE
- + select IRQ_DOMAIN
- + ---help---
- + Select for the Intel CE media processor (CE4100) SOC.
- + This option compiles in support for the CE4100 SOC for settop
- + boxes and media devices.
- +
- +config X86_WANT_INTEL_MID
- + bool "Intel MID platform support"
- + depends on X86_32
- + depends on X86_EXTENDED_PLATFORM
- + ---help---
- + Select to build a kernel capable of supporting Intel MID platform
- + systems which do not have the PCI legacy interfaces (Moorestown,
- + Medfield). If you are building for a PC class system say N here.
- +
- +if X86_WANT_INTEL_MID
- +
- +config X86_INTEL_MID
- + bool
- +
- +config X86_MDFLD
- + bool "Medfield MID platform"
- + depends on PCI
- + depends on PCI_GOANY
- + depends on X86_IO_APIC
- + select X86_INTEL_MID
- + select SFI
- + select DW_APB_TIMER
- + select APB_TIMER
- + select I2C
- + select SPI
- + select INTEL_SCU_IPC
- + select X86_PLATFORM_DEVICES
- + select MFD_INTEL_MSIC
- + ---help---
- + Medfield is Intel's Low Power Intel Architecture (LPIA) based Moblin
- + Internet Device(MID) platform.
- + Unlike standard x86 PCs, Medfield does not have many legacy devices
- + nor standard legacy replacement devices/features. e.g. Medfield does
- + not contain i8259, i8254, HPET, legacy BIOS, most of the io ports.
- +
- +endif
- +
- +config X86_INTEL_LPSS
- + bool "Intel Low Power Subsystem Support"
- + depends on ACPI
- + select COMMON_CLK
- + ---help---
- + Select to build support for Intel Low Power Subsystem such as
- + found on Intel Lynxpoint PCH. Selecting this option enables
- + things like clock tree (common clock framework) which are needed
- + by the LPSS peripheral drivers.
- +
- +config X86_RDC321X
- + bool "RDC R-321x SoC"
- + depends on X86_32
- + depends on X86_EXTENDED_PLATFORM
- + select M486
- + select X86_REBOOTFIXUPS
- + ---help---
- + This option is needed for RDC R-321x system-on-chip, also known
- + as R-8610-(G).
- + If you don't have one of these chips, you should say N here.
- +
- +config X86_32_NON_STANDARD
- + bool "Support non-standard 32-bit SMP architectures"
- + depends on X86_32 && SMP
- + depends on X86_EXTENDED_PLATFORM
- + ---help---
- + This option compiles in the NUMAQ, Summit, bigsmp, ES7000,
- + STA2X11, default subarchitectures. It is intended for a generic
- + binary kernel. If you select them all, kernel will probe it
- + one by one and will fallback to default.
- +
- +# Alphabetically sorted list of Non standard 32 bit platforms
- +
- +config X86_NUMAQ
- + bool "NUMAQ (IBM/Sequent)"
- + depends on X86_32_NON_STANDARD
- + depends on PCI
- + select NUMA
- + select X86_MPPARSE
- + ---help---
- + This option is used for getting Linux to run on a NUMAQ (IBM/Sequent)
- + NUMA multiquad box. This changes the way that processors are
- + bootstrapped, and uses Clustered Logical APIC addressing mode instead
- + of Flat Logical. You will need a new lynxer.elf file to flash your
- + firmware with - send email to <Martin.Bligh@us.ibm.com>.
- +
- +config X86_SUPPORTS_MEMORY_FAILURE
- + def_bool y
- + # MCE code calls memory_failure():
- + depends on X86_MCE
- + # On 32-bit this adds too big of NODES_SHIFT and we run out of page flags:
- + depends on !X86_NUMAQ
- + # On 32-bit SPARSEMEM adds too big of SECTIONS_WIDTH:
- + depends on X86_64 || !SPARSEMEM
- + select ARCH_SUPPORTS_MEMORY_FAILURE
- +
- +config X86_VISWS
- + bool "SGI 320/540 (Visual Workstation)"
- + depends on X86_32 && PCI && X86_MPPARSE && PCI_GODIRECT
- + depends on X86_32_NON_STANDARD
- + ---help---
- + The SGI Visual Workstation series is an IA32-based workstation
- + based on SGI systems chips with some legacy PC hardware attached.
- +
- + Say Y here to create a kernel to run on the SGI 320 or 540.
- +
- + A kernel compiled for the Visual Workstation will run on general
- + PCs as well. See <file:Documentation/sgi-visws.txt> for details.
- +
- +config STA2X11
- + bool "STA2X11 Companion Chip Support"
- + depends on X86_32_NON_STANDARD && PCI
- + select X86_DEV_DMA_OPS
- + select X86_DMA_REMAP
- + select SWIOTLB
- + select MFD_STA2X11
- + select ARCH_REQUIRE_GPIOLIB
- + default n
- + ---help---
- + This adds support for boards based on the STA2X11 IO-Hub,
- + a.k.a. "ConneXt". The chip is used in place of the standard
- + PC chipset, so all "standard" peripherals are missing. If this
- + option is selected the kernel will still be able to boot on
- + standard PC machines.
- +
- +config X86_SUMMIT
- + bool "Summit/EXA (IBM x440)"
- + depends on X86_32_NON_STANDARD
- + ---help---
- + This option is needed for IBM systems that use the Summit/EXA chipset.
- + In particular, it is needed for the x440.
- +
- +config X86_ES7000
- + bool "Unisys ES7000 IA32 series"
- + depends on X86_32_NON_STANDARD && X86_BIGSMP
- + ---help---
- + Support for Unisys ES7000 systems. Say 'Y' here if this kernel is
- + supposed to run on an IA32-based Unisys ES7000 system.
- +
- +config X86_32_IRIS
- + tristate "Eurobraille/Iris poweroff module"
- + depends on X86_32
- + ---help---
- + The Iris machines from EuroBraille do not have APM or ACPI support
- + to shut themselves down properly. A special I/O sequence is
- + needed to do so, which is what this module does at
- + kernel shutdown.
- +
- + This is only for Iris machines from EuroBraille.
- +
- + If unused, say N.
- +
- +config SCHED_OMIT_FRAME_POINTER
- + def_bool y
- + prompt "Single-depth WCHAN output"
- + depends on X86
- + ---help---
- + Calculate simpler /proc/<PID>/wchan values. If this option
- + is disabled then wchan values will recurse back to the
- + caller function. This provides more accurate wchan values,
- + at the expense of slightly more scheduling overhead.
- +
- + If in doubt, say "Y".
- +
- +menuconfig PARAVIRT_GUEST
- + bool "Paravirtualized guest support"
- + ---help---
- + Say Y here to get to see options related to running Linux under
- + various hypervisors. This option alone does not add any kernel code.
- +
- + If you say N, all options in this submenu will be skipped and disabled.
- +
- +if PARAVIRT_GUEST
- +
- +config PARAVIRT_TIME_ACCOUNTING
- + bool "Paravirtual steal time accounting"
- + select PARAVIRT
- + default n
- + ---help---
- + Select this option to enable fine granularity task steal time
- + accounting. Time spent executing other tasks in parallel with
- + the current vCPU is discounted from the vCPU power. To account for
- + that, there can be a small performance impact.
- +
- + If in doubt, say N here.
- +
- +source "arch/x86/xen/Kconfig"
- +
- +config KVM_GUEST
- + bool "KVM Guest support (including kvmclock)"
- + select PARAVIRT
- + select PARAVIRT
- + select PARAVIRT_CLOCK
- + default y if PARAVIRT_GUEST
- + ---help---
- + This option enables various optimizations for running under the KVM
- + hypervisor. It includes a paravirtualized clock, so that instead
- + of relying on a PIT (or probably other) emulation by the
- + underlying device model, the host provides the guest with
- + timing infrastructure such as time of day, and system time
- +
- +source "arch/x86/lguest/Kconfig"
- +
- +config PARAVIRT
- + bool "Enable paravirtualization code"
- + ---help---
- + This changes the kernel so it can modify itself when it is run
- + under a hypervisor, potentially improving performance significantly
- + over full virtualization. However, when run without a hypervisor
- + the kernel is theoretically slower and slightly larger.
- +
- +config PARAVIRT_SPINLOCKS
- + bool "Paravirtualization layer for spinlocks"
- + depends on PARAVIRT && SMP
- + ---help---
- + Paravirtualized spinlocks allow a pvops backend to replace the
- + spinlock implementation with something virtualization-friendly
- + (for example, block the virtual CPU rather than spinning).
- +
- + Unfortunately the downside is an up to 5% performance hit on
- + native kernels, with various workloads.
- +
- + If you are unsure how to answer this question, answer N.
- +
- +config PARAVIRT_CLOCK
- + bool
- +
- +endif
- +
- +config PARAVIRT_DEBUG
- + bool "paravirt-ops debugging"
- + depends on PARAVIRT && DEBUG_KERNEL
- + ---help---
- + Enable to debug paravirt_ops internals. Specifically, BUG if
- + a paravirt_op is missing when it is called.
- +
- +config NO_BOOTMEM
- + def_bool y
- +
- +config MEMTEST
- + bool "Memtest"
- + ---help---
- + This option adds a kernel parameter 'memtest', which allows memtest
- + to be set.
- + memtest=0, mean disabled; -- default
- + memtest=1, mean do 1 test pattern;
- + ...
- + memtest=4, mean do 4 test patterns.
- + If you are unsure how to answer this question, answer N.
- +
- +config X86_SUMMIT_NUMA
- + def_bool y
- + depends on X86_32 && NUMA && X86_32_NON_STANDARD
- +
- +config X86_CYCLONE_TIMER
- + def_bool y
- + depends on X86_SUMMIT
- +
- +source "arch/x86/Kconfig.cpu"
- +
- +config HPET_TIMER
- + def_bool X86_64
- + prompt "HPET Timer Support" if X86_32
- + ---help---
- + Use the IA-PC HPET (High Precision Event Timer) to manage
- + time in preference to the PIT and RTC, if a HPET is
- + present.
- + HPET is the next generation timer replacing legacy 8254s.
- + The HPET provides a stable time base on SMP
- + systems, unlike the TSC, but it is more expensive to access,
- + as it is off-chip. You can find the HPET spec at
- + <http://www.intel.com/hardwaredesign/hpetspec_1.pdf>.
- +
- + You can safely choose Y here. However, HPET will only be
- + activated if the platform and the BIOS support this feature.
- + Otherwise the 8254 will be used for timing services.
- +
- + Choose N to continue using the legacy 8254 timer.
- +
- +config HPET_EMULATE_RTC
- + def_bool y
- + depends on HPET_TIMER && (RTC=y || RTC=m || RTC_DRV_CMOS=m || RTC_DRV_CMOS=y)
- +
- +config APB_TIMER
- + def_bool y if X86_INTEL_MID
- + prompt "Intel MID APB Timer Support" if X86_INTEL_MID
- + select DW_APB_TIMER
- + depends on X86_INTEL_MID && SFI
- + help
- + APB timer is the replacement for 8254, HPET on X86 MID platforms.
- + The APBT provides a stable time base on SMP
- + systems, unlike the TSC, but it is more expensive to access,
- + as it is off-chip. APB timers are always running regardless of CPU
- + C states, they are used as per CPU clockevent device when possible.
- +
- +# Mark as expert because too many people got it wrong.
- +# The code disables itself when not needed.
- +config DMI
- + default y
- + bool "Enable DMI scanning" if EXPERT
- + ---help---
- + Enabled scanning of DMI to identify machine quirks. Say Y
- + here unless you have verified that your setup is not
- + affected by entries in the DMI blacklist. Required by PNP
- + BIOS code.
- +
- +config GART_IOMMU
- + bool "GART IOMMU support" if EXPERT
- + default y
- + select SWIOTLB
- + depends on X86_64 && PCI && AMD_NB
- + ---help---
- + Support for full DMA access of devices with 32bit memory access only
- + on systems with more than 3GB. This is usually needed for USB,
- + sound, many IDE/SATA chipsets and some other devices.
- + Provides a driver for the AMD Athlon64/Opteron/Turion/Sempron GART
- + based hardware IOMMU and a software bounce buffer based IOMMU used
- + on Intel systems and as fallback.
- + The code is only active when needed (enough memory and limited
- + device) unless CONFIG_IOMMU_DEBUG or iommu=force is specified
- + too.
- +
- +config CALGARY_IOMMU
- + bool "IBM Calgary IOMMU support"
- + select SWIOTLB
- + depends on X86_64 && PCI
- + ---help---
- + Support for hardware IOMMUs in IBM's xSeries x366 and x460
- + systems. Needed to run systems with more than 3GB of memory
- + properly with 32-bit PCI devices that do not support DAC
- + (Double Address Cycle). Calgary also supports bus level
- + isolation, where all DMAs pass through the IOMMU. This
- + prevents them from going anywhere except their intended
- + destination. This catches hard-to-find kernel bugs and
- + mis-behaving drivers and devices that do not use the DMA-API
- + properly to set up their DMA buffers. The IOMMU can be
- + turned off at boot time with the iommu=off parameter.
- + Normally the kernel will make the right choice by itself.
- + If unsure, say Y.
- +
- +config CALGARY_IOMMU_ENABLED_BY_DEFAULT
- + def_bool y
- + prompt "Should Calgary be enabled by default?"
- + depends on CALGARY_IOMMU
- + ---help---
- + Should Calgary be enabled by default? if you choose 'y', Calgary
- + will be used (if it exists). If you choose 'n', Calgary will not be
- + used even if it exists. If you choose 'n' and would like to use
- + Calgary anyway, pass 'iommu=calgary' on the kernel command line.
- + If unsure, say Y.
- +
- +# need this always selected by IOMMU for the VIA workaround
- +config SWIOTLB
- + def_bool y if X86_64
- + ---help---
- + Support for software bounce buffers used on x86-64 systems
- + which don't have a hardware IOMMU. Using this PCI devices
- + which can only access 32-bits of memory can be used on systems
- + with more than 3 GB of memory.
- + If unsure, say Y.
- +
- +config IOMMU_HELPER
- + def_bool y
- + depends on CALGARY_IOMMU || GART_IOMMU || SWIOTLB || AMD_IOMMU
- +
- +config MAXSMP
- + bool "Enable Maximum number of SMP Processors and NUMA Nodes"
- + depends on X86_64 && SMP && DEBUG_KERNEL
- + select CPUMASK_OFFSTACK
- + ---help---
- + Enable maximum number of CPUS and NUMA Nodes for this architecture.
- + If unsure, say N.
- +
- +config NR_CPUS
- + int "Maximum number of CPUs" if SMP && !MAXSMP
- + range 2 8 if SMP && X86_32 && !X86_BIGSMP
- + range 2 512 if SMP && !MAXSMP
- + default "1" if !SMP
- + default "4096" if MAXSMP
- + default "32" if SMP && (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES7000)
- + default "8" if SMP
- + ---help---
- + This allows you to specify the maximum number of CPUs which this
- + kernel will support. The maximum supported value is 512 and the
- + minimum value which makes sense is 2.
- +
- + This is purely to save memory - each supported CPU adds
- + approximately eight kilobytes to the kernel image.
- +
- +config SCHED_SMT
- + bool "SMT (Hyperthreading) scheduler support"
- + depends on X86_HT
- + ---help---
- + SMT scheduler support improves the CPU scheduler's decision making
- + when dealing with Intel Pentium 4 chips with HyperThreading at a
- + cost of slightly increased overhead in some places. If unsure say
- + N here.
- +
- +config SCHED_MC
- + def_bool y
- + prompt "Multi-core scheduler support"
- + depends on X86_HT
- + ---help---
- + Multi-core scheduler support improves the CPU scheduler's decision
- + making when dealing with multi-core CPU chips at a cost of slightly
- + increased overhead in some places. If unsure say N here.
- +
- +source "kernel/Kconfig.preempt"
- +
- +config X86_UP_APIC
- + bool "Local APIC support on uniprocessors"
- + depends on X86_32 && !SMP && !X86_32_NON_STANDARD
- + ---help---
- + A local APIC (Advanced Programmable Interrupt Controller) is an
- + integrated interrupt controller in the CPU. If you have a single-CPU
- + system which has a processor with a local APIC, you can say Y here to
- + enable and use it. If you say Y here even though your machine doesn't
- + have a local APIC, then the kernel will still run with no slowdown at
- + all. The local APIC supports CPU-generated self-interrupts (timer,
- + performance counters), and the NMI watchdog which detects hard
- + lockups.
- +
- +config X86_UP_IOAPIC
- + bool "IO-APIC support on uniprocessors"
- + depends on X86_UP_APIC
- + ---help---
- + An IO-APIC (I/O Advanced Programmable Interrupt Controller) is an
- + SMP-capable replacement for PC-style interrupt controllers. Most
- + SMP systems and many recent uniprocessor systems have one.
- +
- + If you have a single-CPU system with an IO-APIC, you can say Y here
- + to use it. If you say Y here even though your machine doesn't have
- + an IO-APIC, then the kernel will still run with no slowdown at all.
- +
- +config X86_LOCAL_APIC
- + def_bool y
- + depends on X86_64 || SMP || X86_32_NON_STANDARD || X86_UP_APIC
- +
- +config X86_IO_APIC
- + def_bool y
- + depends on X86_64 || SMP || X86_32_NON_STANDARD || X86_UP_IOAPIC
- +
- +config X86_VISWS_APIC
- + def_bool y
- + depends on X86_32 && X86_VISWS
- +
- +config X86_REROUTE_FOR_BROKEN_BOOT_IRQS
- + bool "Reroute for broken boot IRQs"
- + depends on X86_IO_APIC
- + ---help---
- + This option enables a workaround that fixes a source of
- + spurious interrupts. This is recommended when threaded
- + interrupt handling is used on systems where the generation of
- + superfluous "boot interrupts" cannot be disabled.
- +
- + Some chipsets generate a legacy INTx "boot IRQ" when the IRQ
- + entry in the chipset's IO-APIC is masked (as, e.g. the RT
- + kernel does during interrupt handling). On chipsets where this
- + boot IRQ generation cannot be disabled, this workaround keeps
- + the original IRQ line masked so that only the equivalent "boot
- + IRQ" is delivered to the CPUs. The workaround also tells the
- + kernel to set up the IRQ handler on the boot IRQ line. In this
- + way only one interrupt is delivered to the kernel. Otherwise
- + the spurious second interrupt may cause the kernel to bring
- + down (vital) interrupt lines.
- +
- + Only affects "broken" chipsets. Interrupt sharing may be
- + increased on these systems.
- +
- +config X86_MCE
- + bool "Machine Check / overheating reporting"
- + default y
- + ---help---
- + Machine Check support allows the processor to notify the
- + kernel if it detects a problem (e.g. overheating, data corruption).
- + The action the kernel takes depends on the severity of the problem,
- + ranging from warning messages to halting the machine.
- +
- +config X86_MCE_INTEL
- + def_bool y
- + prompt "Intel MCE features"
- + depends on X86_MCE && X86_LOCAL_APIC
- + ---help---
- + Additional support for intel specific MCE features such as
- + the thermal monitor.
- +
- +config X86_MCE_AMD
- + def_bool y
- + prompt "AMD MCE features"
- + depends on X86_MCE && X86_LOCAL_APIC
- + ---help---
- + Additional support for AMD specific MCE features such as
- + the DRAM Error Threshold.
- +
- +config X86_ANCIENT_MCE
- + bool "Support for old Pentium 5 / WinChip machine checks"
- + depends on X86_32 && X86_MCE
- + ---help---
- + Include support for machine check handling on old Pentium 5 or WinChip
- + systems. These typically need to be enabled explicitely on the command
- + line.
- +
- +config X86_MCE_THRESHOLD
- + depends on X86_MCE_AMD || X86_MCE_INTEL
- + def_bool y
- +
- +config X86_MCE_INJECT
- + depends on X86_MCE
- + tristate "Machine check injector support"
- + ---help---
- + Provide support for injecting machine checks for testing purposes.
- + If you don't know what a machine check is and you don't do kernel
- + QA it is safe to say n.
- +
- +config X86_THERMAL_VECTOR
- + def_bool y
- + depends on X86_MCE_INTEL
- +
- +config VM86
- + bool "Enable VM86 support" if EXPERT
- + default y
- + depends on X86_32
- + ---help---
- + This option is required by programs like DOSEMU to run 16-bit legacy
- + code on X86 processors. It also may be needed by software like
- + XFree86 to initialize some video cards via BIOS. Disabling this
- + option saves about 6k.
- +
- +config TOSHIBA
- + tristate "Toshiba Laptop support"
- + depends on X86_32
- + ---help---
- + This adds a driver to safely access the System Management Mode of
- + the CPU on Toshiba portables with a genuine Toshiba BIOS. It does
- + not work on models with a Phoenix BIOS. The System Management Mode
- + is used to set the BIOS and power saving options on Toshiba portables.
- +
- + For information on utilities to make use of this driver see the
- + Toshiba Linux utilities web site at:
- + <http://www.buzzard.org.uk/toshiba/>.
- +
- + Say Y if you intend to run this kernel on a Toshiba portable.
- + Say N otherwise.
- +
- +config I8K
- + tristate "Dell laptop support"
- + select HWMON
- + ---help---
- + This adds a driver to safely access the System Management Mode
- + of the CPU on the Dell Inspiron 8000. The System Management Mode
- + is used to read cpu temperature and cooling fan status and to
- + control the fans on the I8K portables.
- +
- + This driver has been tested only on the Inspiron 8000 but it may
- + also work with other Dell laptops. You can force loading on other
- + models by passing the parameter `force=1' to the module. Use at
- + your own risk.
- +
- + For information on utilities to make use of this driver see the
- + I8K Linux utilities web site at:
- + <http://people.debian.org/~dz/i8k/>
- +
- + Say Y if you intend to run this kernel on a Dell Inspiron 8000.
- + Say N otherwise.
- +
- +config X86_REBOOTFIXUPS
- + bool "Enable X86 board specific fixups for reboot"
- + depends on X86_32
- + ---help---
- + This enables chipset and/or board specific fixups to be done
- + in order to get reboot to work correctly. This is only needed on
- + some combinations of hardware and BIOS. The symptom, for which
- + this config is intended, is when reboot ends with a stalled/hung
- + system.
- +
- + Currently, the only fixup is for the Geode machines using
- + CS5530A and CS5536 chipsets and the RDC R-321x SoC.
- +
- + Say Y if you want to enable the fixup. Currently, it's safe to
- + enable this option even if you don't need it.
- + Say N otherwise.
- +
- +config MICROCODE
- + tristate "CPU microcode loading support"
- + select FW_LOADER
- + ---help---
- +
- + If you say Y here, you will be able to update the microcode on
- + certain Intel and AMD processors. The Intel support is for the
- + IA32 family, e.g. Pentium Pro, Pentium II, Pentium III, Pentium 4,
- + Xeon etc. The AMD support is for families 0x10 and later. You will
- + obviously need the actual microcode binary data itself which is not
- + shipped with the Linux kernel.
- +
- + This option selects the general module only, you need to select
- + at least one vendor specific module as well.
- +
- + To compile this driver as a module, choose M here: the module
- + will be called microcode.
- +
- +config MICROCODE_INTEL
- + bool "Intel microcode loading support"
- + depends on MICROCODE
- + default MICROCODE
- + select FW_LOADER
- + ---help---
- + This options enables microcode patch loading support for Intel
- + processors.
- +
- + For latest news and information on obtaining all the required
- + Intel ingredients for this driver, check:
- + <http://www.urbanmyth.org/microcode/>.
- +
- +config MICROCODE_AMD
- + bool "AMD microcode loading support"
- + depends on MICROCODE
- + select FW_LOADER
- + ---help---
- + If you select this option, microcode patch loading support for AMD
- + processors will be enabled.
- +
- +config MICROCODE_OLD_INTERFACE
- + def_bool y
- + depends on MICROCODE
- +
- +config MICROCODE_INTEL_LIB
- + def_bool y
- + depends on MICROCODE_INTEL
- +
- +config MICROCODE_INTEL_EARLY
- + bool "Early load microcode"
- + depends on MICROCODE_INTEL && BLK_DEV_INITRD
- + default y
- + help
- + This option provides functionality to read additional microcode data
- + at the beginning of initrd image. The data tells kernel to load
- + microcode to CPU's as early as possible. No functional change if no
- + microcode data is glued to the initrd, therefore it's safe to say Y.
- +
- +config MICROCODE_EARLY
- + def_bool y
- + depends on MICROCODE_INTEL_EARLY
- +
- +config X86_MSR
- + tristate "/dev/cpu/*/msr - Model-specific register support"
- + ---help---
- + This device gives privileged processes access to the x86
- + Model-Specific Registers (MSRs). It is a character device with
- + major 202 and minors 0 to 31 for /dev/cpu/0/msr to /dev/cpu/31/msr.
- + MSR accesses are directed to a specific CPU on multi-processor
- + systems.
- +
- +config X86_CPUID
- + tristate "/dev/cpu/*/cpuid - CPU information support"
- + ---help---
- + This device gives processes access to the x86 CPUID instruction to
- + be executed on a specific processor. It is a character device
- + with major 203 and minors 0 to 31 for /dev/cpu/0/cpuid to
- + /dev/cpu/31/cpuid.
- +
- +choice
- + prompt "High Memory Support"
- + default HIGHMEM64G if X86_NUMAQ
- + default HIGHMEM4G
- + depends on X86_32
- +
- +config NOHIGHMEM
- + bool "off"
- + depends on !X86_NUMAQ
- + ---help---
- + Linux can use up to 64 Gigabytes of physical memory on x86 systems.
- + However, the address space of 32-bit x86 processors is only 4
- + Gigabytes large. That means that, if you have a large amount of
- + physical memory, not all of it can be "permanently mapped" by the
- + kernel. The physical memory that's not permanently mapped is called
- + "high memory".
- +
- + If you are compiling a kernel which will never run on a machine with
- + more than 1 Gigabyte total physical RAM, answer "off" here (default
- + choice and suitable for most users). This will result in a "3GB/1GB"
- + split: 3GB are mapped so that each process sees a 3GB virtual memory
- + space and the remaining part of the 4GB virtual memory space is used
- + by the kernel to permanently map as much physical memory as
- + possible.
- +
- + If the machine has between 1 and 4 Gigabytes physical RAM, then
- + answer "4GB" here.
- +
- + If more than 4 Gigabytes is used then answer "64GB" here. This
- + selection turns Intel PAE (Physical Address Extension) mode on.
- + PAE implements 3-level paging on IA32 processors. PAE is fully
- + supported by Linux, PAE mode is implemented on all recent Intel
- + processors (Pentium Pro and better). NOTE: If you say "64GB" here,
- + then the kernel will not boot on CPUs that don't support PAE!
- +
- + The actual amount of total physical memory will either be
- + auto detected or can be forced by using a kernel command line option
- + such as "mem=256M". (Try "man bootparam" or see the documentation of
- + your boot loader (lilo or loadlin) about how to pass options to the
- + kernel at boot time.)
- +
- + If unsure, say "off".
- +
- +config HIGHMEM4G
- + bool "4GB"
- + depends on !X86_NUMAQ
- + ---help---
- + Select this if you have a 32-bit processor and between 1 and 4
- + gigabytes of physical RAM.
- +
- +config HIGHMEM64G
- + bool "64GB"
- + depends on !M486
- + select X86_PAE
- + ---help---
- + Select this if you have a 32-bit processor and more than 4
- + gigabytes of physical RAM.
- +
- +endchoice
- +
- +choice
- + prompt "Memory split" if EXPERT
- + default VMSPLIT_3G
- + depends on X86_32
- + ---help---
- + Select the desired split between kernel and user memory.
- +
- + If the address range available to the kernel is less than the
- + physical memory installed, the remaining memory will be available
- + as "high memory". Accessing high memory is a little more costly
- + than low memory, as it needs to be mapped into the kernel first.
- + Note that increasing the kernel address space limits the range
- + available to user programs, making the address space there
- + tighter. Selecting anything other than the default 3G/1G split
- + will also likely make your kernel incompatible with binary-only
- + kernel modules.
- +
- + If you are not absolutely sure what you are doing, leave this
- + option alone!
- +
- + config VMSPLIT_3G
- + bool "3G/1G user/kernel split"
- + config VMSPLIT_3G_OPT
- + depends on !X86_PAE
- + bool "3G/1G user/kernel split (for full 1G low memory)"
- + config VMSPLIT_2G
- + bool "2G/2G user/kernel split"
- + config VMSPLIT_2G_OPT
- + depends on !X86_PAE
- + bool "2G/2G user/kernel split (for full 2G low memory)"
- + config VMSPLIT_1G
- + bool "1G/3G user/kernel split"
- +endchoice
- +
- +config PAGE_OFFSET
- + hex
- + default 0xB0000000 if VMSPLIT_3G_OPT
- + default 0x80000000 if VMSPLIT_2G
- + default 0x78000000 if VMSPLIT_2G_OPT
- + default 0x40000000 if VMSPLIT_1G
- + default 0xC0000000
- + depends on X86_32
- +
- +config HIGHMEM
- + def_bool y
- + depends on X86_32 && (HIGHMEM64G || HIGHMEM4G)
- +
- +config X86_PAE
- + bool "PAE (Physical Address Extension) Support"
- + depends on X86_32 && !HIGHMEM4G
- + ---help---
- + PAE is required for NX support, and furthermore enables
- + larger swapspace support for non-overcommit purposes. It
- + has the cost of more pagetable lookup overhead, and also
- + consumes more pagetable space per process.
- +
- +config ARCH_PHYS_ADDR_T_64BIT
- + def_bool y
- + depends on X86_64 || X86_PAE
- +
- +config ARCH_DMA_ADDR_T_64BIT
- + def_bool y
- + depends on X86_64 || HIGHMEM64G
- +
- +config DIRECT_GBPAGES
- + bool "Enable 1GB pages for kernel pagetables" if EXPERT
- + default y
- + depends on X86_64
- + ---help---
- + Allow the kernel linear mapping to use 1GB pages on CPUs that
- + support it. This can improve the kernel's performance a tiny bit by
- + reducing TLB pressure. If in doubt, say "Y".
- +
- +# Common NUMA Features
- +config NUMA
- + bool "Numa Memory Allocation and Scheduler Support"
- + depends on SMP
- + depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || X86_BIGSMP || X86_SUMMIT && ACPI))
- + default y if (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP)
- + ---help---
- + Enable NUMA (Non Uniform Memory Access) support.
- +
- + The kernel will try to allocate memory used by a CPU on the
- + local memory controller of the CPU and add some more
- + NUMA awareness to the kernel.
- +
- + For 64-bit this is recommended if the system is Intel Core i7
- + (or later), AMD Opteron, or EM64T NUMA.
- +
- + For 32-bit this is only needed on (rare) 32-bit-only platforms
- + that support NUMA topologies, such as NUMAQ / Summit, or if you
- + boot a 32-bit kernel on a 64-bit NUMA platform.
- +
- + Otherwise, you should say N.
- +
- +comment "NUMA (Summit) requires SMP, 64GB highmem support, ACPI"
- + depends on X86_32 && X86_SUMMIT && (!HIGHMEM64G || !ACPI)
- +
- +config AMD_NUMA
- + def_bool y
- + prompt "Old style AMD Opteron NUMA detection"
- + depends on X86_64 && NUMA && PCI
- + ---help---
- + Enable AMD NUMA node topology detection. You should say Y here if
- + you have a multi processor AMD system. This uses an old method to
- + read the NUMA configuration directly from the builtin Northbridge
- + of Opteron. It is recommended to use X86_64_ACPI_NUMA instead,
- + which also takes priority if both are compiled in.
- +
- +config X86_64_ACPI_NUMA
- + def_bool y
- + prompt "ACPI NUMA detection"
- + depends on X86_64 && NUMA && ACPI && PCI
- + select ACPI_NUMA
- + ---help---
- + Enable ACPI SRAT based node topology detection.
- +
- +# Some NUMA nodes have memory ranges that span
- +# other nodes. Even though a pfn is valid and
- +# between a node's start and end pfns, it may not
- +# reside on that node. See memmap_init_zone()
- +# for details.
- +config NODES_SPAN_OTHER_NODES
- + def_bool y
- + depends on X86_64_ACPI_NUMA
- +
- +config NUMA_EMU
- + bool "NUMA emulation"
- + depends on NUMA
- + ---help---
- + Enable NUMA emulation. A flat machine will be split
- + into virtual nodes when booted with "numa=fake=N", where N is the
- + number of nodes. This is only useful for debugging.
- +
- +config NODES_SHIFT
- + int "Maximum NUMA Nodes (as a power of 2)" if !MAXSMP
- + range 1 10
- + default "10" if MAXSMP
- + default "6" if X86_64
- + default "4" if X86_NUMAQ
- + default "3"
- + depends on NEED_MULTIPLE_NODES
- + ---help---
- + Specify the maximum number of NUMA Nodes available on the target
- + system. Increases memory reserved to accommodate various tables.
- +
- +config ARCH_HAVE_MEMORY_PRESENT
- + def_bool y
- + depends on X86_32 && DISCONTIGMEM
- +
- +config NEED_NODE_MEMMAP_SIZE
- + def_bool y
- + depends on X86_32 && (DISCONTIGMEM || SPARSEMEM)
- +
- +config ARCH_FLATMEM_ENABLE
- + def_bool y
- + depends on X86_32 && !NUMA
- +
- +config ARCH_DISCONTIGMEM_ENABLE
- + def_bool y
- + depends on NUMA && X86_32
- +
- +config ARCH_DISCONTIGMEM_DEFAULT
- + def_bool y
- + depends on NUMA && X86_32
- +
- +config ARCH_SPARSEMEM_ENABLE
- + def_bool y
- + depends on X86_64 || NUMA || X86_32 || X86_32_NON_STANDARD
- + select SPARSEMEM_STATIC if X86_32
- + select SPARSEMEM_VMEMMAP_ENABLE if X86_64
- +
- +config ARCH_SPARSEMEM_DEFAULT
- + def_bool y
- + depends on X86_64
- +
- +config ARCH_SELECT_MEMORY_MODEL
- + def_bool y
- + depends on ARCH_SPARSEMEM_ENABLE
- +
- +config ARCH_MEMORY_PROBE
- + def_bool y
- + depends on X86_64 && MEMORY_HOTPLUG
- +
- +config ARCH_PROC_KCORE_TEXT
- + def_bool y
- + depends on X86_64 && PROC_KCORE
- +
- +config ILLEGAL_POINTER_VALUE
- + hex
- + default 0 if X86_32
- + default 0xdead000000000000 if X86_64
- +
- +source "mm/Kconfig"
- +
- +config HIGHPTE
- + bool "Allocate 3rd-level pagetables from highmem"
- + depends on HIGHMEM
- + ---help---
- + The VM uses one page table entry for each page of physical memory.
- + For systems with a lot of RAM, this can be wasteful of precious
- + low memory. Setting this option will put user-space page table
- + entries in high memory.
- +
- +config X86_CHECK_BIOS_CORRUPTION
- + bool "Check for low memory corruption"
- + ---help---
- + Periodically check for memory corruption in low memory, which
- + is suspected to be caused by BIOS. Even when enabled in the
- + configuration, it is disabled at runtime. Enable it by
- + setting "memory_corruption_check=1" on the kernel command
- + line. By default it scans the low 64k of memory every 60
- + seconds; see the memory_corruption_check_size and
- + memory_corruption_check_period parameters in
- + Documentation/kernel-parameters.txt to adjust this.
- +
- + When enabled with the default parameters, this option has
- + almost no overhead, as it reserves a relatively small amount
- + of memory and scans it infrequently. It both detects corruption
- + and prevents it from affecting the running system.
- +
- + It is, however, intended as a diagnostic tool; if repeatable
- + BIOS-originated corruption always affects the same memory,
- + you can use memmap= to prevent the kernel from using that
- + memory.
- +
- +config X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK
- + bool "Set the default setting of memory_corruption_check"
- + depends on X86_CHECK_BIOS_CORRUPTION
- + default y
- + ---help---
- + Set whether the default state of memory_corruption_check is
- + on or off.
- +
- +config X86_RESERVE_LOW
- + int "Amount of low memory, in kilobytes, to reserve for the BIOS"
- + default 64
- + range 4 640
- + ---help---
- + Specify the amount of low memory to reserve for the BIOS.
- +
- + The first page contains BIOS data structures that the kernel
- + must not use, so that page must always be reserved.
- +
- + By default we reserve the first 64K of physical RAM, as a
- + number of BIOSes are known to corrupt that memory range
- + during events such as suspend/resume or monitor cable
- + insertion, so it must not be used by the kernel.
- +
- + You can set this to 4 if you are absolutely sure that you
- + trust the BIOS to get all its memory reservations and usages
- + right. If you know your BIOS have problems beyond the
- + default 64K area, you can set this to 640 to avoid using the
- + entire low memory range.
- +
- + If you have doubts about the BIOS (e.g. suspend/resume does
- + not work or there's kernel crashes after certain hardware
- + hotplug events) then you might want to enable
- + X86_CHECK_BIOS_CORRUPTION=y to allow the kernel to check
- + typical corruption patterns.
- +
- + Leave this to the default value of 64 if you are unsure.
- +
- +config MATH_EMULATION
- + bool
- + prompt "Math emulation" if X86_32
- + ---help---
- + Linux can emulate a math coprocessor (used for floating point
- + operations) if you don't have one. 486DX and Pentium processors have
- + a math coprocessor built in, 486SX and 386 do not, unless you added
- + a 487DX or 387, respectively. (The messages during boot time can
- + give you some hints here ["man dmesg"].) Everyone needs either a
- + coprocessor or this emulation.
- +
- + If you don't have a math coprocessor, you need to say Y here; if you
- + say Y here even though you have a coprocessor, the coprocessor will
- + be used nevertheless. (This behavior can be changed with the kernel
- + command line option "no387", which comes handy if your coprocessor
- + is broken. Try "man bootparam" or see the documentation of your boot
- + loader (lilo or loadlin) about how to pass options to the kernel at
- + boot time.) This means that it is a good idea to say Y here if you
- + intend to use this kernel on different machines.
- +
- + More information about the internals of the Linux math coprocessor
- + emulation can be found in <file:arch/x86/math-emu/README>.
- +
- + If you are not sure, say Y; apart from resulting in a 66 KB bigger
- + kernel, it won't hurt.
- +
- +config MTRR
- + def_bool y
- + prompt "MTRR (Memory Type Range Register) support" if EXPERT
- + ---help---
- + On Intel P6 family processors (Pentium Pro, Pentium II and later)
- + the Memory Type Range Registers (MTRRs) may be used to control
- + processor access to memory ranges. This is most useful if you have
- + a video (VGA) card on a PCI or AGP bus. Enabling write-combining
- + allows bus write transfers to be combined into a larger transfer
- + before bursting over the PCI/AGP bus. This can increase performance
- + of image write operations 2.5 times or more. Saying Y here creates a
- + /proc/mtrr file which may be used to manipulate your processor's
- + MTRRs. Typically the X server should use this.
- +
- + This code has a reasonably generic interface so that similar
- + control registers on other processors can be easily supported
- + as well:
- +
- + The Cyrix 6x86, 6x86MX and M II processors have Address Range
- + Registers (ARRs) which provide a similar functionality to MTRRs. For
- + these, the ARRs are used to emulate the MTRRs.
- + The AMD K6-2 (stepping 8 and above) and K6-3 processors have two
- + MTRRs. The Centaur C6 (WinChip) has 8 MCRs, allowing
- + write-combining. All of these processors are supported by this code
- + and it makes sense to say Y here if you have one of them.
- +
- + Saying Y here also fixes a problem with buggy SMP BIOSes which only
- + set the MTRRs for the boot CPU and not for the secondary CPUs. This
- + can lead to all sorts of problems, so it's good to say Y here.
- +
- + You can safely say Y even if your machine doesn't have MTRRs, you'll
- + just add about 9 KB to your kernel.
- +
- + See <file:Documentation/x86/mtrr.txt> for more information.
- +
- +config MTRR_SANITIZER
- + def_bool y
- + prompt "MTRR cleanup support"
- + depends on MTRR
- + ---help---
- + Convert MTRR layout from continuous to discrete, so X drivers can
- + add writeback entries.
- +
- + Can be disabled with disable_mtrr_cleanup on the kernel command line.
- + The largest mtrr entry size for a continuous block can be set with
- + mtrr_chunk_size.
- +
- + If unsure, say Y.
- +
- +config MTRR_SANITIZER_ENABLE_DEFAULT
- + int "MTRR cleanup enable value (0-1)"
- + range 0 1
- + default "0"
- + depends on MTRR_SANITIZER
- + ---help---
- + Enable mtrr cleanup default value
- +
- +config MTRR_SANITIZER_SPARE_REG_NR_DEFAULT
- + int "MTRR cleanup spare reg num (0-7)"
- + range 0 7
- + default "1"
- + depends on MTRR_SANITIZER
- + ---help---
- + mtrr cleanup spare entries default, it can be changed via
- + mtrr_spare_reg_nr=N on the kernel command line.
- +
- +config X86_PAT
- + def_bool y
- + prompt "x86 PAT support" if EXPERT
- + depends on MTRR
- + ---help---
- + Use PAT attributes to setup page level cache control.
- +
- + PATs are the modern equivalents of MTRRs and are much more
- + flexible than MTRRs.
- +
- + Say N here if you see bootup problems (boot crash, boot hang,
- + spontaneous reboots) or a non-working video driver.
- +
- + If unsure, say Y.
- +
- +config ARCH_USES_PG_UNCACHED
- + def_bool y
- + depends on X86_PAT
- +
- +config ARCH_RANDOM
- + def_bool y
- + prompt "x86 architectural random number generator" if EXPERT
- + ---help---
- + Enable the x86 architectural RDRAND instruction
- + (Intel Bull Mountain technology) to generate random numbers.
- + If supported, this is a high bandwidth, cryptographically
- + secure hardware random number generator.
- +
- +config X86_SMAP
- + def_bool y
- + prompt "Supervisor Mode Access Prevention" if EXPERT
- + ---help---
- + Supervisor Mode Access Prevention (SMAP) is a security
- + feature in newer Intel processors. There is a small
- + performance cost if this enabled and turned on; there is
- + also a small increase in the kernel size if this is enabled.
- +
- + If unsure, say Y.
- +
- +config EFI
- + bool "EFI runtime service support"
- + depends on ACPI
- + select UCS2_STRING
- + ---help---
- + This enables the kernel to use EFI runtime services that are
- + available (such as the EFI variable services).
- +
- + This option is only useful on systems that have EFI firmware.
- + In addition, you should use the latest ELILO loader available
- + at <http://elilo.sourceforge.net> in order to take advantage
- + of EFI runtime services. However, even with this option, the
- + resultant kernel should continue to boot on existing non-EFI
- + platforms.
- +
- +config EFI_STUB
- + bool "EFI stub support"
- + depends on EFI
- + ---help---
- + This kernel feature allows a bzImage to be loaded directly
- + by EFI firmware without the use of a bootloader.
- +
- + See Documentation/x86/efi-stub.txt for more information.
- +
- +config SECCOMP
- + def_bool y
- + prompt "Enable seccomp to safely compute untrusted bytecode"
- + ---help---
- + This kernel feature is useful for number crunching applications
- + that may need to compute untrusted bytecode during their
- + execution. By using pipes or other transports made available to
- + the process as file descriptors supporting the read/write
- + syscalls, it's possible to isolate those applications in
- + their own address space using seccomp. Once seccomp is
- + enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
- + and the task is only allowed to execute a few safe syscalls
- + defined by each seccomp mode.
- +
- + If unsure, say Y. Only embedded should say N here.
- +
- +config CC_STACKPROTECTOR
- + bool "Enable -fstack-protector buffer overflow detection"
- + ---help---
- + This option turns on the -fstack-protector GCC feature. This
- + feature puts, at the beginning of functions, a canary value on
- + the stack just before the return address, and validates
- + the value just before actually returning. Stack based buffer
- + overflows (that need to overwrite this return address) now also
- + overwrite the canary, which gets detected and the attack is then
- + neutralized via a kernel panic.
- +
- + This feature requires gcc version 4.2 or above, or a distribution
- + gcc with the feature backported. Older versions are automatically
- + detected and for those versions, this configuration option is
- + ignored. (and a warning is printed during bootup)
- +
- +source kernel/Kconfig.hz
- +
- +config KEXEC
- + bool "kexec system call"
- + ---help---
- + kexec is a system call that implements the ability to shutdown your
- + current kernel, and to start another kernel. It is like a reboot
- + but it is independent of the system firmware. And like a reboot
- + you can start any kernel with it, not just Linux.
- +
- + The name comes from the similarity to the exec system call.
- +
- + It is an ongoing process to be certain the hardware in a machine
- + is properly shutdown, so do not be surprised if this code does not
- + initially work for you. It may help to enable device hotplugging
- + support. As of this writing the exact hardware interface is
- + strongly in flux, so no good recommendation can be made.
- +
- +config CRASH_DUMP
- + bool "kernel crash dumps"
- + depends on X86_64 || (X86_32 && HIGHMEM)
- + ---help---
- + Generate crash dump after being started by kexec.
- + This should be normally only set in special crash dump kernels
- + which are loaded in the main kernel with kexec-tools into
- + a specially reserved region and then later executed after
- + a crash by kdump/kexec. The crash dump kernel must be compiled
- + to a memory address not used by the main kernel or BIOS using
- + PHYSICAL_START, or it must be built as a relocatable image
- + (CONFIG_RELOCATABLE=y).
- + For more details see Documentation/kdump/kdump.txt
- +
- +config KEXEC_JUMP
- + bool "kexec jump"
- + depends on KEXEC && HIBERNATION
- + ---help---
- + Jump between original kernel and kexeced kernel and invoke
- + code in physical address mode via KEXEC
- +
- +config PHYSICAL_START
- + hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP)
- + default "0x1000000"
- + ---help---
- + This gives the physical address where the kernel is loaded.
- +
- + If kernel is a not relocatable (CONFIG_RELOCATABLE=n) then
- + bzImage will decompress itself to above physical address and
- + run from there. Otherwise, bzImage will run from the address where
- + it has been loaded by the boot loader and will ignore above physical
- + address.
- +
- + In normal kdump cases one does not have to set/change this option
- + as now bzImage can be compiled as a completely relocatable image
- + (CONFIG_RELOCATABLE=y) and be used to load and run from a different
- + address. This option is mainly useful for the folks who don't want
- + to use a bzImage for capturing the crash dump and want to use a
- + vmlinux instead. vmlinux is not relocatable hence a kernel needs
- + to be specifically compiled to run from a specific memory area
- + (normally a reserved region) and this option comes handy.
- +
- + So if you are using bzImage for capturing the crash dump,
- + leave the value here unchanged to 0x1000000 and set
- + CONFIG_RELOCATABLE=y. Otherwise if you plan to use vmlinux
- + for capturing the crash dump change this value to start of
- + the reserved region. In other words, it can be set based on
- + the "X" value as specified in the "crashkernel=YM@XM"
- + command line boot parameter passed to the panic-ed
- + kernel. Please take a look at Documentation/kdump/kdump.txt
- + for more details about crash dumps.
- +
- + Usage of bzImage for capturing the crash dump is recommended as
- + one does not have to build two kernels. Same kernel can be used
- + as production kernel and capture kernel. Above option should have
- + gone away after relocatable bzImage support is introduced. But it
- + is present because there are users out there who continue to use
- + vmlinux for dump capture. This option should go away down the
- + line.
- +
- + Don't change this unless you know what you are doing.
- +
- +config RELOCATABLE
- + bool "Build a relocatable kernel"
- + default y
- + ---help---
- + This builds a kernel image that retains relocation information
- + so it can be loaded someplace besides the default 1MB.
- + The relocations tend to make the kernel binary about 10% larger,
- + but are discarded at runtime.
- +
- + One use is for the kexec on panic case where the recovery kernel
- + must live at a different physical address than the primary
- + kernel.
- +
- + Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
- + it has been loaded at and the compile time physical address
- + (CONFIG_PHYSICAL_START) is ignored.
- +
- +# Relocation on x86-32 needs some additional build support
- +config X86_NEED_RELOCS
- + def_bool y
- + depends on X86_32 && RELOCATABLE
- +
- +config PHYSICAL_ALIGN
- + hex "Alignment value to which kernel should be aligned" if X86_32
- + default "0x1000000"
- + range 0x2000 0x1000000
- + ---help---
- + This value puts the alignment restrictions on physical address
- + where kernel is loaded and run from. Kernel is compiled for an
- + address which meets above alignment restriction.
- +
- + If bootloader loads the kernel at a non-aligned address and
- + CONFIG_RELOCATABLE is set, kernel will move itself to nearest
- + address aligned to above value and run from there.
- +
- + If bootloader loads the kernel at a non-aligned address and
- + CONFIG_RELOCATABLE is not set, kernel will ignore the run time
- + load address and decompress itself to the address it has been
- + compiled for and run from there. The address for which kernel is
- + compiled already meets above alignment restrictions. Hence the
- + end result is that kernel runs from a physical address meeting
- + above alignment restrictions.
- +
- + Don't change this unless you know what you are doing.
- +
- +config HOTPLUG_CPU
- + bool "Support for hot-pluggable CPUs"
- + depends on SMP && HOTPLUG
- + ---help---
- + Say Y here to allow turning CPUs off and on. CPUs can be
- + controlled through /sys/devices/system/cpu.
- + ( Note: power management support will enable this option
- + automatically on SMP systems. )
- + Say N if you want to disable CPU hotplug.
- +
- +config BOOTPARAM_HOTPLUG_CPU0
- + bool "Set default setting of cpu0_hotpluggable"
- + default n
- + depends on HOTPLUG_CPU
- + ---help---
- + Set whether default state of cpu0_hotpluggable is on or off.
- +
- + Say Y here to enable CPU0 hotplug by default. If this switch
- + is turned on, there is no need to give cpu0_hotplug kernel
- + parameter and the CPU0 hotplug feature is enabled by default.
- +
- + Please note: there are two known CPU0 dependencies if you want
- + to enable the CPU0 hotplug feature either by this switch or by
- + cpu0_hotplug kernel parameter.
- +
- + First, resume from hibernate or suspend always starts from CPU0.
- + So hibernate and suspend are prevented if CPU0 is offline.
- +
- + Second dependency is PIC interrupts always go to CPU0. CPU0 can not
- + offline if any interrupt can not migrate out of CPU0. There may
- + be other CPU0 dependencies.
- +
- + Please make sure the dependencies are under your control before
- + you enable this feature.
- +
- + Say N if you don't want to enable CPU0 hotplug feature by default.
- + You still can enable the CPU0 hotplug feature at boot by kernel
- + parameter cpu0_hotplug.
- +
- +config DEBUG_HOTPLUG_CPU0
- + def_bool n
- + prompt "Debug CPU0 hotplug"
- + depends on HOTPLUG_CPU
- + ---help---
- + Enabling this option offlines CPU0 (if CPU0 can be offlined) as
- + soon as possible and boots up userspace with CPU0 offlined. User
- + can online CPU0 back after boot time.
- +
- + To debug CPU0 hotplug, you need to enable CPU0 offline/online
- + feature by either turning on CONFIG_BOOTPARAM_HOTPLUG_CPU0 during
- + compilation or giving cpu0_hotplug kernel parameter at boot.
- +
- + If unsure, say N.
- +
- +config COMPAT_VDSO
- + def_bool y
- + prompt "Compat VDSO support"
- + depends on X86_32 || IA32_EMULATION
- + ---help---
- + Map the 32-bit VDSO to the predictable old-style address too.
- +
- + Say N here if you are running a sufficiently recent glibc
- + version (2.3.3 or later), to remove the high-mapped
- + VDSO mapping and to exclusively use the randomized VDSO.
- +
- + If unsure, say Y.
- +
- +config CMDLINE_BOOL
- + bool "Built-in kernel command line"
- + ---help---
- + Allow for specifying boot arguments to the kernel at
- + build time. On some systems (e.g. embedded ones), it is
- + necessary or convenient to provide some or all of the
- + kernel boot arguments with the kernel itself (that is,
- + to not rely on the boot loader to provide them.)
- +
- + To compile command line arguments into the kernel,
- + set this option to 'Y', then fill in the
- + the boot arguments in CONFIG_CMDLINE.
- +
- + Systems with fully functional boot loaders (i.e. non-embedded)
- + should leave this option set to 'N'.
- +
- +config CMDLINE
- + string "Built-in kernel command string"
- + depends on CMDLINE_BOOL
- + default ""
- + ---help---
- + Enter arguments here that should be compiled into the kernel
- + image and used at boot time. If the boot loader provides a
- + command line at boot time, it is appended to this string to
- + form the full kernel command line, when the system boots.
- +
- + However, you can use the CONFIG_CMDLINE_OVERRIDE option to
- + change this behavior.
- +
- + In most cases, the command line (whether built-in or provided
- + by the boot loader) should specify the device for the root
- + file system.
- +
- +config CMDLINE_OVERRIDE
- + bool "Built-in command line overrides boot loader arguments"
- + depends on CMDLINE_BOOL
- + ---help---
- + Set this option to 'Y' to have the kernel ignore the boot loader
- + command line, and use ONLY the built-in command line.
- +
- + This is used to work around broken boot loaders. This should
- + be set to 'N' under normal conditions.
- +
- +endmenu
- +
- +config ARCH_ENABLE_MEMORY_HOTPLUG
- + def_bool y
- + depends on X86_64 || (X86_32 && HIGHMEM)
- +
- +config ARCH_ENABLE_MEMORY_HOTREMOVE
- + def_bool y
- + depends on MEMORY_HOTPLUG
- +
- +config USE_PERCPU_NUMA_NODE_ID
- + def_bool y
- + depends on NUMA
- +
- +menu "Power management and ACPI options"
- +
- +config ARCH_HIBERNATION_HEADER
- + def_bool y
- + depends on X86_64 && HIBERNATION
- +
- +source "kernel/power/Kconfig"
- +
- +source "drivers/acpi/Kconfig"
- +
- +source "drivers/sfi/Kconfig"
- +
- +config X86_APM_BOOT
- + def_bool y
- + depends on APM
- +
- +menuconfig APM
- + tristate "APM (Advanced Power Management) BIOS support"
- + depends on X86_32 && PM_SLEEP
- + ---help---
- + APM is a BIOS specification for saving power using several different
- + techniques. This is mostly useful for battery powered laptops with
- + APM compliant BIOSes. If you say Y here, the system time will be
- + reset after a RESUME operation, the /proc/apm device will provide
- + battery status information, and user-space programs will receive
- + notification of APM "events" (e.g. battery status change).
- +
- + If you select "Y" here, you can disable actual use of the APM
- + BIOS by passing the "apm=off" option to the kernel at boot time.
- +
- + Note that the APM support is almost completely disabled for
- + machines with more than one CPU.
- +
- + In order to use APM, you will need supporting software. For location
- + and more information, read <file:Documentation/power/apm-acpi.txt>
- + and the Battery Powered Linux mini-HOWTO, available from
- + <http://www.tldp.org/docs.html#howto>.
- +
- + This driver does not spin down disk drives (see the hdparm(8)
- + manpage ("man 8 hdparm") for that), and it doesn't turn off
- + VESA-compliant "green" monitors.
- +
- + This driver does not support the TI 4000M TravelMate and the ACER
- + 486/DX4/75 because they don't have compliant BIOSes. Many "green"
- + desktop machines also don't have compliant BIOSes, and this driver
- + may cause those machines to panic during the boot phase.
- +
- + Generally, if you don't have a battery in your machine, there isn't
- + much point in using this driver and you should say N. If you get
- + random kernel OOPSes or reboots that don't seem to be related to
- + anything, try disabling/enabling this option (or disabling/enabling
- + APM in your BIOS).
- +
- + Some other things you should try when experiencing seemingly random,
- + "weird" problems:
- +
- + 1) make sure that you have enough swap space and that it is
- + enabled.
- + 2) pass the "no-hlt" option to the kernel
- + 3) switch on floating point emulation in the kernel and pass
- + the "no387" option to the kernel
- + 4) pass the "floppy=nodma" option to the kernel
- + 5) pass the "mem=4M" option to the kernel (thereby disabling
- + all but the first 4 MB of RAM)
- + 6) make sure that the CPU is not over clocked.
- + 7) read the sig11 FAQ at <http://www.bitwizard.nl/sig11/>
- + 8) disable the cache from your BIOS settings
- + 9) install a fan for the video card or exchange video RAM
- + 10) install a better fan for the CPU
- + 11) exchange RAM chips
- + 12) exchange the motherboard.
- +
- + To compile this driver as a module, choose M here: the
- + module will be called apm.
- +
- +if APM
- +
- +config APM_IGNORE_USER_SUSPEND
- + bool "Ignore USER SUSPEND"
- + ---help---
- + This option will ignore USER SUSPEND requests. On machines with a
- + compliant APM BIOS, you want to say N. However, on the NEC Versa M
- + series notebooks, it is necessary to say Y because of a BIOS bug.
- +
- +config APM_DO_ENABLE
- + bool "Enable PM at boot time"
- + ---help---
- + Enable APM features at boot time. From page 36 of the APM BIOS
- + specification: "When disabled, the APM BIOS does not automatically
- + power manage devices, enter the Standby State, enter the Suspend
- + State, or take power saving steps in response to CPU Idle calls."
- + This driver will make CPU Idle calls when Linux is idle (unless this
- + feature is turned off -- see "Do CPU IDLE calls", below). This
- + should always save battery power, but more complicated APM features
- + will be dependent on your BIOS implementation. You may need to turn
- + this option off if your computer hangs at boot time when using APM
- + support, or if it beeps continuously instead of suspending. Turn
- + this off if you have a NEC UltraLite Versa 33/C or a Toshiba
- + T400CDT. This is off by default since most machines do fine without
- + this feature.
- +
- +config APM_CPU_IDLE
- + depends on CPU_IDLE
- + bool "Make CPU Idle calls when idle"
- + ---help---
- + Enable calls to APM CPU Idle/CPU Busy inside the kernel's idle loop.
- + On some machines, this can activate improved power savings, such as
- + a slowed CPU clock rate, when the machine is idle. These idle calls
- + are made after the idle loop has run for some length of time (e.g.,
- + 333 mS). On some machines, this will cause a hang at boot time or
- + whenever the CPU becomes idle. (On machines with more than one CPU,
- + this option does nothing.)
- +
- +config APM_DISPLAY_BLANK
- + bool "Enable console blanking using APM"
- + ---help---
- + Enable console blanking using the APM. Some laptops can use this to
- + turn off the LCD backlight when the screen blanker of the Linux
- + virtual console blanks the screen. Note that this is only used by
- + the virtual console screen blanker, and won't turn off the backlight
- + when using the X Window system. This also doesn't have anything to
- + do with your VESA-compliant power-saving monitor. Further, this
- + option doesn't work for all laptops -- it might not turn off your
- + backlight at all, or it might print a lot of errors to the console,
- + especially if you are using gpm.
- +
- +config APM_ALLOW_INTS
- + bool "Allow interrupts during APM BIOS calls"
- + ---help---
- + Normally we disable external interrupts while we are making calls to
- + the APM BIOS as a measure to lessen the effects of a badly behaving
- + BIOS implementation. The BIOS should reenable interrupts if it
- + needs to. Unfortunately, some BIOSes do not -- especially those in
- + many of the newer IBM Thinkpads. If you experience hangs when you
- + suspend, try setting this to Y. Otherwise, say N.
- +
- +endif # APM
- +
- +source "drivers/cpufreq/Kconfig"
- +
- +source "drivers/cpuidle/Kconfig"
- +
- +source "drivers/idle/Kconfig"
- +
- +endmenu
- +
- +
- +menu "Bus options (PCI etc.)"
- +
- +config PCI
- + bool "PCI support"
- + default y
- + select ARCH_SUPPORTS_MSI if (X86_LOCAL_APIC && X86_IO_APIC)
- + ---help---
- + Find out whether you have a PCI motherboard. PCI is the name of a
- + bus system, i.e. the way the CPU talks to the other stuff inside
- + your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
- + VESA. If you have PCI, say Y, otherwise N.
- +
- +choice
- + prompt "PCI access mode"
- + depends on X86_32 && PCI
- + default PCI_GOANY
- + ---help---
- + On PCI systems, the BIOS can be used to detect the PCI devices and
- + determine their configuration. However, some old PCI motherboards
- + have BIOS bugs and may crash if this is done. Also, some embedded
- + PCI-based systems don't have any BIOS at all. Linux can also try to
- + detect the PCI hardware directly without using the BIOS.
- +
- + With this option, you can specify how Linux should detect the
- + PCI devices. If you choose "BIOS", the BIOS will be used,
- + if you choose "Direct", the BIOS won't be used, and if you
- + choose "MMConfig", then PCI Express MMCONFIG will be used.
- + If you choose "Any", the kernel will try MMCONFIG, then the
- + direct access method and falls back to the BIOS if that doesn't
- + work. If unsure, go with the default, which is "Any".
- +
- +config PCI_GOBIOS
- + bool "BIOS"
- +
- +config PCI_GOMMCONFIG
- + bool "MMConfig"
- +
- +config PCI_GODIRECT
- + bool "Direct"
- +
- +config PCI_GOOLPC
- + bool "OLPC XO-1"
- + depends on OLPC
- +
- +config PCI_GOANY
- + bool "Any"
- +
- +endchoice
- +
- +config PCI_BIOS
- + def_bool y
- + depends on X86_32 && PCI && (PCI_GOBIOS || PCI_GOANY)
- +
- +# x86-64 doesn't support PCI BIOS access from long mode so always go direct.
- +config PCI_DIRECT
- + def_bool y
- + depends on PCI && (X86_64 || (PCI_GODIRECT || PCI_GOANY || PCI_GOOLPC || PCI_GOMMCONFIG))
- +
- +config PCI_MMCONFIG
- + def_bool y
- + depends on X86_32 && PCI && (ACPI || SFI) && (PCI_GOMMCONFIG || PCI_GOANY)
- +
- +config PCI_OLPC
- + def_bool y
- + depends on PCI && OLPC && (PCI_GOOLPC || PCI_GOANY)
- +
- +config PCI_XEN
- + def_bool y
- + depends on PCI && XEN
- + select SWIOTLB_XEN
- +
- +config PCI_DOMAINS
- + def_bool y
- + depends on PCI
- +
- +config PCI_MMCONFIG
- + bool "Support mmconfig PCI config space access"
- + depends on X86_64 && PCI && ACPI
- +
- +config PCI_CNB20LE_QUIRK
- + bool "Read CNB20LE Host Bridge Windows" if EXPERT
- + depends on PCI
- + help
- + Read the PCI windows out of the CNB20LE host bridge. This allows
- + PCI hotplug to work on systems with the CNB20LE chipset which do
- + not have ACPI.
- +
- + There's no public spec for this chipset, and this functionality
- + is known to be incomplete.
- +
- + You should say N unless you know you need this.
- +
- +source "drivers/pci/pcie/Kconfig"
- +
- +source "drivers/pci/Kconfig"
- +
- +# x86_64 have no ISA slots, but can have ISA-style DMA.
- +config ISA_DMA_API
- + bool "ISA-style DMA support" if (X86_64 && EXPERT)
- + default y
- + help
- + Enables ISA-style DMA support for devices requiring such controllers.
- + If unsure, say Y.
- +
- +if X86_32
- +
- +config ISA
- + bool "ISA support"
- + ---help---
- + Find out whether you have ISA slots on your motherboard. ISA is the
- + name of a bus system, i.e. the way the CPU talks to the other stuff
- + inside your box. Other bus systems are PCI, EISA, MicroChannel
- + (MCA) or VESA. ISA is an older system, now being displaced by PCI;
- + newer boards don't support it. If you have ISA, say Y, otherwise N.
- +
- +config EISA
- + bool "EISA support"
- + depends on ISA
- + ---help---
- + The Extended Industry Standard Architecture (EISA) bus was
- + developed as an open alternative to the IBM MicroChannel bus.
- +
- + The EISA bus provided some of the features of the IBM MicroChannel
- + bus while maintaining backward compatibility with cards made for
- + the older ISA bus. The EISA bus saw limited use between 1988 and
- + 1995 when it was made obsolete by the PCI bus.
- +
- + Say Y here if you are building a kernel for an EISA-based machine.
- +
- + Otherwise, say N.
- +
- +source "drivers/eisa/Kconfig"
- +
- +config SCx200
- + tristate "NatSemi SCx200 support"
- + ---help---
- + This provides basic support for National Semiconductor's
- + (now AMD's) Geode processors. The driver probes for the
- + PCI-IDs of several on-chip devices, so its a good dependency
- + for other scx200_* drivers.
- +
- + If compiled as a module, the driver is named scx200.
- +
- +config SCx200HR_TIMER
- + tristate "NatSemi SCx200 27MHz High-Resolution Timer Support"
- + depends on SCx200
- + default y
- + ---help---
- + This driver provides a clocksource built upon the on-chip
- + 27MHz high-resolution timer. Its also a workaround for
- + NSC Geode SC-1100's buggy TSC, which loses time when the
- + processor goes idle (as is done by the scheduler). The
- + other workaround is idle=poll boot option.
- +
- +config OLPC
- + bool "One Laptop Per Child support"
- + depends on !X86_PAE
- + select GPIOLIB
- + select OF
- + select OF_PROMTREE
- + select IRQ_DOMAIN
- + ---help---
- + Add support for detecting the unique features of the OLPC
- + XO hardware.
- +
- +config OLPC_XO1_PM
- + bool "OLPC XO-1 Power Management"
- + depends on OLPC && MFD_CS5535 && PM_SLEEP
- + select MFD_CORE
- + ---help---
- + Add support for poweroff and suspend of the OLPC XO-1 laptop.
- +
- +config OLPC_XO1_RTC
- + bool "OLPC XO-1 Real Time Clock"
- + depends on OLPC_XO1_PM && RTC_DRV_CMOS
- + ---help---
- + Add support for the XO-1 real time clock, which can be used as a
- + programmable wakeup source.
- +
- +config OLPC_XO1_SCI
- + bool "OLPC XO-1 SCI extras"
- + depends on OLPC && OLPC_XO1_PM
- + depends on INPUT=y
- + select POWER_SUPPLY
- + select GPIO_CS5535
- + select MFD_CORE
- + ---help---
- + Add support for SCI-based features of the OLPC XO-1 laptop:
- + - EC-driven system wakeups
- + - Power button
- + - Ebook switch
- + - Lid switch
- + - AC adapter status updates
- + - Battery status updates
- +
- +config OLPC_XO15_SCI
- + bool "OLPC XO-1.5 SCI extras"
- + depends on OLPC && ACPI
- + select POWER_SUPPLY
- + ---help---
- + Add support for SCI-based features of the OLPC XO-1.5 laptop:
- + - EC-driven system wakeups
- + - AC adapter status updates
- + - Battery status updates
- +
- +config ALIX
- + bool "PCEngines ALIX System Support (LED setup)"
- + select GPIOLIB
- + ---help---
- + This option enables system support for the PCEngines ALIX.
- + At present this just sets up LEDs for GPIO control on
- + ALIX2/3/6 boards. However, other system specific setup should
- + get added here.
- +
- + Note: You must still enable the drivers for GPIO and LED support
- + (GPIO_CS5535 & LEDS_GPIO) to actually use the LEDs
- +
- + Note: You have to set alix.force=1 for boards with Award BIOS.
- +
- +config NET5501
- + bool "Soekris Engineering net5501 System Support (LEDS, GPIO, etc)"
- + select GPIOLIB
- + ---help---
- + This option enables system support for the Soekris Engineering net5501.
- +
- +config GEOS
- + bool "Traverse Technologies GEOS System Support (LEDS, GPIO, etc)"
- + select GPIOLIB
- + depends on DMI
- + ---help---
- + This option enables system support for the Traverse Technologies GEOS.
- +
- +config TS5500
- + bool "Technologic Systems TS-5500 platform support"
- + depends on MELAN
- + select CHECK_SIGNATURE
- + select NEW_LEDS
- + select LEDS_CLASS
- + ---help---
- + This option enables system support for the Technologic Systems TS-5500.
- +
- +endif # X86_32
- +
- +config AMD_NB
- + def_bool y
- + depends on CPU_SUP_AMD && PCI
- +
- +source "drivers/pcmcia/Kconfig"
- +
- +source "drivers/pci/hotplug/Kconfig"
- +
- +config RAPIDIO
- + bool "RapidIO support"
- + depends on PCI
- + default n
- + help
- + If you say Y here, the kernel will include drivers and
- + infrastructure code to support RapidIO interconnect devices.
- +
- +source "drivers/rapidio/Kconfig"
- +
- +endmenu
- +
- +
- +menu "Executable file formats / Emulations"
- +
- +source "fs/Kconfig.binfmt"
- +
- +config IA32_EMULATION
- + bool "IA32 Emulation"
- + depends on X86_64
- + select BINFMT_ELF
- + select COMPAT_BINFMT_ELF
- + select HAVE_UID16
- + ---help---
- + Include code to run legacy 32-bit programs under a
- + 64-bit kernel. You should likely turn this on, unless you're
- + 100% sure that you don't have any 32-bit programs left.
- +
- +config IA32_AOUT
- + tristate "IA32 a.out support"
- + depends on IA32_EMULATION
- + ---help---
- + Support old a.out binaries in the 32bit emulation.
- +
- +config X86_X32
- + bool "x32 ABI for 64-bit mode"
- + depends on X86_64 && IA32_EMULATION
- + ---help---
- + Include code to run binaries for the x32 native 32-bit ABI
- + for 64-bit processors. An x32 process gets access to the
- + full 64-bit register file and wide data path while leaving
- + pointers at 32 bits for smaller memory footprint.
- +
- + You will need a recent binutils (2.22 or later) with
- + elf32_x86_64 support enabled to compile a kernel with this
- + option set.
- +
- +config COMPAT
- + def_bool y
- + depends on IA32_EMULATION || X86_X32
- + select ARCH_WANT_OLD_COMPAT_IPC
- +
- +if COMPAT
- +config COMPAT_FOR_U64_ALIGNMENT
- + def_bool y
- +
- +config SYSVIPC_COMPAT
- + def_bool y
- + depends on SYSVIPC
- +
- +config KEYS_COMPAT
- + def_bool y
- + depends on KEYS
- +endif
- +
- +endmenu
- +
- +
- +config HAVE_ATOMIC_IOMAP
- + def_bool y
- + depends on X86_32
- +
- +config HAVE_TEXT_POKE_SMP
- + bool
- + select STOP_MACHINE if SMP
- +
- +config X86_DEV_DMA_OPS
- + bool
- + depends on X86_64 || STA2X11
- +
- +config X86_DMA_REMAP
- + bool
- + depends on STA2X11
- +
- +source "net/Kconfig"
- +
- +source "drivers/Kconfig"
- +
- +source "drivers/firmware/Kconfig"
- +
- +source "fs/Kconfig"
- +
- +source "arch/x86/Kconfig.debug"
- +
- +source "security/Kconfig"
- +
- +source "crypto/Kconfig"
- +
- +source "arch/x86/kvm/Kconfig"
- +
- +source "lib/Kconfig"
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