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As documented in the Loongson 2F User Manual [2, 3], the old Loongson2F
series (2F01 / 2F02) have the NOP & JUMP issues which requires workarounds
in the kernel and binutils. This issue has been rectified in Loongson 2F
series 2F03 so no workarounds needed.
Now that the workarounds [1] adding the the -mfix-loongson2f-nop and
-mfix-loongson2f-jump options have been comitted to the binutils the CVS
repository), we can add the workarounds in the kernel.
The workarounds have no significant side effect on the system but may
decrease performance so we control them through a a new
CPU_LOONGSON2F_WORKAROUNDS config option allowing the users to only enable
it as necessary.
[1] "Fixups of Loongson2F" patch for binutils(actually for gas)
http://sourceware.org/ml/binutils/2009-11/msg00387.html
[2] Chapter 15 of "Loongson2F User Manual"(Chinese Version)
http://www.loongson.cn/uploadfile/file/200808211
[3] English Version of the above chapter 15
http://groups.google.com.hk/group/loongson-dev/msg/e0d2e220958f10a6?dmode=source
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips <linux-mips@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/1105/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2259 lines
52 KiB
Plaintext
2259 lines
52 KiB
Plaintext
config MIPS
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bool
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default y
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select HAVE_GENERIC_DMA_COHERENT
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select HAVE_IDE
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select HAVE_OPROFILE
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select HAVE_ARCH_KGDB
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select HAVE_FUNCTION_TRACER
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select HAVE_FUNCTION_TRACE_MCOUNT_TEST
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select HAVE_DYNAMIC_FTRACE
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select HAVE_FTRACE_MCOUNT_RECORD
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select HAVE_FUNCTION_GRAPH_TRACER
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select RTC_LIB if !MACH_LOONGSON
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mainmenu "Linux/MIPS Kernel Configuration"
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menu "Machine selection"
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config ZONE_DMA
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bool
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choice
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prompt "System type"
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default SGI_IP22
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config MACH_ALCHEMY
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bool "Alchemy processor based machines"
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select SYS_SUPPORTS_ZBOOT
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config AR7
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bool "Texas Instruments AR7"
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select BOOT_ELF32
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select DMA_NONCOHERENT
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select CEVT_R4K
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select CSRC_R4K
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select IRQ_CPU
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select NO_EXCEPT_FILL
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select SWAP_IO_SPACE
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select SYS_HAS_CPU_MIPS32_R1
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select SYS_HAS_EARLY_PRINTK
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select SYS_SUPPORTS_32BIT_KERNEL
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select SYS_SUPPORTS_LITTLE_ENDIAN
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select SYS_SUPPORTS_ZBOOT_UART16550
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select ARCH_REQUIRE_GPIOLIB
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select GCD
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select VLYNQ
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help
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Support for the Texas Instruments AR7 System-on-a-Chip
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family: TNETD7100, 7200 and 7300.
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config BCM47XX
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bool "Broadcom BCM47XX based boards"
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select CEVT_R4K
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select CSRC_R4K
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select DMA_NONCOHERENT
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select HW_HAS_PCI
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select IRQ_CPU
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select SYS_HAS_CPU_MIPS32_R1
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select SYS_SUPPORTS_32BIT_KERNEL
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select SYS_SUPPORTS_LITTLE_ENDIAN
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select SSB
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select SSB_DRIVER_MIPS
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select SSB_DRIVER_EXTIF
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select SSB_EMBEDDED
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select SSB_PCICORE_HOSTMODE if PCI
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select GENERIC_GPIO
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select SYS_HAS_EARLY_PRINTK
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select CFE
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help
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Support for BCM47XX based boards
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config BCM63XX
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bool "Broadcom BCM63XX based boards"
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select CEVT_R4K
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select CSRC_R4K
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select DMA_NONCOHERENT
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select IRQ_CPU
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select SYS_HAS_CPU_MIPS32_R1
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select SYS_SUPPORTS_32BIT_KERNEL
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select SYS_SUPPORTS_BIG_ENDIAN
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select SYS_HAS_EARLY_PRINTK
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select SWAP_IO_SPACE
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select ARCH_REQUIRE_GPIOLIB
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help
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Support for BCM63XX based boards
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config MIPS_COBALT
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bool "Cobalt Server"
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select CEVT_R4K
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select CSRC_R4K
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select CEVT_GT641XX
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select DMA_NONCOHERENT
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select HW_HAS_PCI
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select I8253
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select I8259
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select IRQ_CPU
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select IRQ_GT641XX
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select PCI_GT64XXX_PCI0
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select PCI
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select SYS_HAS_CPU_NEVADA
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select SYS_HAS_EARLY_PRINTK
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select SYS_SUPPORTS_32BIT_KERNEL
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select SYS_SUPPORTS_64BIT_KERNEL
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select SYS_SUPPORTS_LITTLE_ENDIAN
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config MACH_DECSTATION
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bool "DECstations"
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select BOOT_ELF32
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select CEVT_DS1287
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select CEVT_R4K
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select CSRC_IOASIC
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select CSRC_R4K
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select CPU_DADDI_WORKAROUNDS if 64BIT
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select CPU_R4000_WORKAROUNDS if 64BIT
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select CPU_R4400_WORKAROUNDS if 64BIT
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select DMA_NONCOHERENT
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select NO_IOPORT
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select IRQ_CPU
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select SYS_HAS_CPU_R3000
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select SYS_HAS_CPU_R4X00
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select SYS_SUPPORTS_32BIT_KERNEL
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select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
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select SYS_SUPPORTS_LITTLE_ENDIAN
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select SYS_SUPPORTS_128HZ
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select SYS_SUPPORTS_256HZ
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select SYS_SUPPORTS_1024HZ
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help
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This enables support for DEC's MIPS based workstations. For details
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see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
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DECstation porting pages on <http://decstation.unix-ag.org/>.
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If you have one of the following DECstation Models you definitely
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want to choose R4xx0 for the CPU Type:
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DECstation 5000/50
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DECstation 5000/150
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DECstation 5000/260
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DECsystem 5900/260
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otherwise choose R3000.
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config MACH_JAZZ
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bool "Jazz family of machines"
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select ARC
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select ARC32
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select ARCH_MAY_HAVE_PC_FDC
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select CEVT_R4K
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select CSRC_R4K
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select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
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select GENERIC_ISA_DMA
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select IRQ_CPU
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select I8253
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select I8259
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select ISA
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select SYS_HAS_CPU_R4X00
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select SYS_SUPPORTS_32BIT_KERNEL
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select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
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select SYS_SUPPORTS_100HZ
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help
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This a family of machines based on the MIPS R4030 chipset which was
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used by several vendors to build RISC/os and Windows NT workstations.
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Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
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Olivetti M700-10 workstations.
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config LASAT
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bool "LASAT Networks platforms"
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select CEVT_R4K
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select CSRC_R4K
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select DMA_NONCOHERENT
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select SYS_HAS_EARLY_PRINTK
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select HW_HAS_PCI
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select IRQ_CPU
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select PCI_GT64XXX_PCI0
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select MIPS_NILE4
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select R5000_CPU_SCACHE
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select SYS_HAS_CPU_R5000
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select SYS_SUPPORTS_32BIT_KERNEL
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select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
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select SYS_SUPPORTS_LITTLE_ENDIAN
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config MACH_LOONGSON
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bool "Loongson family of machines"
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select SYS_SUPPORTS_ZBOOT
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help
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This enables the support of Loongson family of machines.
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Loongson is a family of general-purpose MIPS-compatible CPUs.
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developed at Institute of Computing Technology (ICT),
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Chinese Academy of Sciences (CAS) in the People's Republic
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of China. The chief architect is Professor Weiwu Hu.
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config MIPS_MALTA
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bool "MIPS Malta board"
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select ARCH_MAY_HAVE_PC_FDC
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select BOOT_ELF32
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select BOOT_RAW
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select CEVT_R4K
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select CSRC_R4K
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select DMA_NONCOHERENT
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select GENERIC_ISA_DMA
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select IRQ_CPU
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select IRQ_GIC
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select HW_HAS_PCI
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select I8253
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select I8259
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select MIPS_BOARDS_GEN
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select MIPS_BONITO64
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select MIPS_CPU_SCACHE
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select PCI_GT64XXX_PCI0
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select MIPS_MSC
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select SWAP_IO_SPACE
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select SYS_HAS_CPU_MIPS32_R1
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select SYS_HAS_CPU_MIPS32_R2
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select SYS_HAS_CPU_MIPS64_R1
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select SYS_HAS_CPU_NEVADA
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select SYS_HAS_CPU_RM7000
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select SYS_HAS_EARLY_PRINTK
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select SYS_SUPPORTS_32BIT_KERNEL
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select SYS_SUPPORTS_64BIT_KERNEL
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select SYS_SUPPORTS_BIG_ENDIAN
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select SYS_SUPPORTS_LITTLE_ENDIAN
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select SYS_SUPPORTS_MIPS_CMP
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select SYS_SUPPORTS_MULTITHREADING
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select SYS_SUPPORTS_SMARTMIPS
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select SYS_SUPPORTS_ZBOOT
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help
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This enables support for the MIPS Technologies Malta evaluation
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board.
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config MIPS_SIM
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bool 'MIPS simulator (MIPSsim)'
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select CEVT_R4K
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select CSRC_R4K
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select DMA_NONCOHERENT
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select SYS_HAS_EARLY_PRINTK
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select IRQ_CPU
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select BOOT_RAW
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select SYS_HAS_CPU_MIPS32_R1
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select SYS_HAS_CPU_MIPS32_R2
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select SYS_HAS_EARLY_PRINTK
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select SYS_SUPPORTS_32BIT_KERNEL
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select SYS_SUPPORTS_BIG_ENDIAN
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select SYS_SUPPORTS_MULTITHREADING
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select SYS_SUPPORTS_LITTLE_ENDIAN
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help
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This option enables support for MIPS Technologies MIPSsim software
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emulator.
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config NEC_MARKEINS
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bool "NEC EMMA2RH Mark-eins board"
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select SOC_EMMA2RH
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select HW_HAS_PCI
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help
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This enables support for the NEC Electronics Mark-eins boards.
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config MACH_VR41XX
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bool "NEC VR4100 series based machines"
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select CEVT_R4K
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select CSRC_R4K
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select SYS_HAS_CPU_VR41XX
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select ARCH_REQUIRE_GPIOLIB
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config NXP_STB220
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bool "NXP STB220 board"
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select SOC_PNX833X
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help
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Support for NXP Semiconductors STB220 Development Board.
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config NXP_STB225
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bool "NXP 225 board"
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select SOC_PNX833X
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select SOC_PNX8335
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help
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Support for NXP Semiconductors STB225 Development Board.
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config PNX8550_JBS
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bool "NXP PNX8550 based JBS board"
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select PNX8550
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select SYS_SUPPORTS_LITTLE_ENDIAN
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config PNX8550_STB810
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bool "NXP PNX8550 based STB810 board"
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select PNX8550
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select SYS_SUPPORTS_LITTLE_ENDIAN
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config PMC_MSP
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bool "PMC-Sierra MSP chipsets"
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depends on EXPERIMENTAL
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select DMA_NONCOHERENT
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select SWAP_IO_SPACE
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select NO_EXCEPT_FILL
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select BOOT_RAW
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select SYS_HAS_CPU_MIPS32_R1
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select SYS_HAS_CPU_MIPS32_R2
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select SYS_SUPPORTS_32BIT_KERNEL
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select SYS_SUPPORTS_BIG_ENDIAN
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select IRQ_CPU
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select SERIAL_8250
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select SERIAL_8250_CONSOLE
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help
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This adds support for the PMC-Sierra family of Multi-Service
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Processor System-On-A-Chips. These parts include a number
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of integrated peripherals, interfaces and DSPs in addition to
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a variety of MIPS cores.
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config PMC_YOSEMITE
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bool "PMC-Sierra Yosemite eval board"
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select CEVT_R4K
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select CSRC_R4K
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select DMA_COHERENT
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select HW_HAS_PCI
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select IRQ_CPU
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select IRQ_CPU_RM7K
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select IRQ_CPU_RM9K
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select SWAP_IO_SPACE
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select SYS_HAS_CPU_RM9000
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select SYS_HAS_EARLY_PRINTK
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select SYS_SUPPORTS_32BIT_KERNEL
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select SYS_SUPPORTS_64BIT_KERNEL
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select SYS_SUPPORTS_BIG_ENDIAN
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select SYS_SUPPORTS_HIGHMEM
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select SYS_SUPPORTS_SMP
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help
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Yosemite is an evaluation board for the RM9000x2 processor
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manufactured by PMC-Sierra.
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config POWERTV
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bool "Cisco PowerTV"
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select BOOT_ELF32
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select CEVT_R4K
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select CPU_MIPSR2_IRQ_VI
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select CPU_MIPSR2_IRQ_EI
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select CSRC_POWERTV
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select DMA_NONCOHERENT
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select HW_HAS_PCI
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select SYS_HAS_EARLY_PRINTK
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select SYS_HAS_CPU_MIPS32_R2
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select SYS_SUPPORTS_32BIT_KERNEL
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select SYS_SUPPORTS_BIG_ENDIAN
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select SYS_SUPPORTS_HIGHMEM
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select USB_OHCI_LITTLE_ENDIAN
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help
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This enables support for the Cisco PowerTV Platform.
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config SGI_IP22
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bool "SGI IP22 (Indy/Indigo2)"
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select ARC
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select ARC32
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select BOOT_ELF32
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select CEVT_R4K
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select CSRC_R4K
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select DEFAULT_SGI_PARTITION
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select DMA_NONCOHERENT
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select HW_HAS_EISA
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select I8253
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select I8259
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select IP22_CPU_SCACHE
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select IRQ_CPU
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select GENERIC_ISA_DMA_SUPPORT_BROKEN
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select SGI_HAS_I8042
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select SGI_HAS_INDYDOG
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select SGI_HAS_HAL2
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select SGI_HAS_SEEQ
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select SGI_HAS_WD93
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select SGI_HAS_ZILOG
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select SWAP_IO_SPACE
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select SYS_HAS_CPU_R4X00
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select SYS_HAS_CPU_R5000
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#
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# Disable EARLY_PRINTK for now since it leads to overwritten prom
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|
# memory during early boot on some machines.
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#
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# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
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# for a more details discussion
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#
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# select SYS_HAS_EARLY_PRINTK
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select SYS_SUPPORTS_32BIT_KERNEL
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select SYS_SUPPORTS_64BIT_KERNEL
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select SYS_SUPPORTS_BIG_ENDIAN
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help
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This are the SGI Indy, Challenge S and Indigo2, as well as certain
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OEM variants like the Tandem CMN B006S. To compile a Linux kernel
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that runs on these, say Y here.
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config SGI_IP27
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bool "SGI IP27 (Origin200/2000)"
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select ARC
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select ARC64
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select BOOT_ELF64
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select DEFAULT_SGI_PARTITION
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select DMA_COHERENT
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select SYS_HAS_EARLY_PRINTK
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select HW_HAS_PCI
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select NR_CPUS_DEFAULT_64
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select SYS_HAS_CPU_R10000
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select SYS_SUPPORTS_64BIT_KERNEL
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|
select SYS_SUPPORTS_BIG_ENDIAN
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select SYS_SUPPORTS_NUMA
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|
select SYS_SUPPORTS_SMP
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|
help
|
|
This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
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workstations. To compile a Linux kernel that runs on these, say Y
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here.
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|
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config SGI_IP28
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bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
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depends on EXPERIMENTAL
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select ARC
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|
select ARC64
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|
select BOOT_ELF64
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|
select CEVT_R4K
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|
select CSRC_R4K
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|
select DEFAULT_SGI_PARTITION
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|
select DMA_NONCOHERENT
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|
select GENERIC_ISA_DMA_SUPPORT_BROKEN
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|
select IRQ_CPU
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|
select HW_HAS_EISA
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|
select I8253
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|
select I8259
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|
select SGI_HAS_I8042
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|
select SGI_HAS_INDYDOG
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|
select SGI_HAS_HAL2
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|
select SGI_HAS_SEEQ
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|
select SGI_HAS_WD93
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|
select SGI_HAS_ZILOG
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|
select SWAP_IO_SPACE
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|
select SYS_HAS_CPU_R10000
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|
#
|
|
# 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
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|
select SYS_SUPPORTS_64BIT_KERNEL
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|
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 ARC
|
|
select 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"
|
|
depends on EXPERIMENTAL
|
|
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"
|
|
depends on EXPERIMENTAL
|
|
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"
|
|
depends on EXPERIMENTAL
|
|
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"
|
|
depends on EXPERIMENTAL
|
|
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"
|
|
depends on EXPERIMENTAL
|
|
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"
|
|
depends on EXPERIMENTAL
|
|
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 ARC if CPU_LITTLE_ENDIAN
|
|
select ARC32 if CPU_LITTLE_ENDIAN
|
|
select 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 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 if EXPERIMENTAL
|
|
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_HIGHMEM
|
|
select SYS_SUPPORTS_HOTPLUG_CPU
|
|
select SYS_HAS_CPU_CAVIUM_OCTEON
|
|
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 SYS_SUPPORTS_HIGHMEM
|
|
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
|
|
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.
|
|
|
|
endchoice
|
|
|
|
source "arch/mips/alchemy/Kconfig"
|
|
source "arch/mips/bcm63xx/Kconfig"
|
|
source "arch/mips/jazz/Kconfig"
|
|
source "arch/mips/lasat/Kconfig"
|
|
source "arch/mips/pmc-sierra/Kconfig"
|
|
source "arch/mips/powertv/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"
|
|
|
|
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 ARCH_SUPPORTS_OPROFILE
|
|
bool
|
|
default y if !MIPS_MT_SMTC
|
|
|
|
config GENERIC_FIND_NEXT_BIT
|
|
bool
|
|
default y
|
|
|
|
config GENERIC_HWEIGHT
|
|
bool
|
|
default y
|
|
|
|
config GENERIC_CALIBRATE_DELAY
|
|
bool
|
|
default y
|
|
|
|
config GENERIC_CLOCKEVENTS
|
|
bool
|
|
default y
|
|
|
|
config GENERIC_TIME
|
|
bool
|
|
default y
|
|
|
|
config GENERIC_CMOS_UPDATE
|
|
bool
|
|
default y
|
|
|
|
config SCHED_OMIT_FRAME_POINTER
|
|
bool
|
|
default y
|
|
|
|
config GENERIC_HARDIRQS_NO__DO_IRQ
|
|
def_bool y
|
|
|
|
#
|
|
# Select some configuration options automatically based on user selections.
|
|
#
|
|
config 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_LIB
|
|
bool
|
|
|
|
config CEVT_R4K
|
|
select CEVT_R4K_LIB
|
|
bool
|
|
|
|
config CEVT_SB1250
|
|
bool
|
|
|
|
config CEVT_TXX9
|
|
bool
|
|
|
|
config CSRC_BCM1480
|
|
bool
|
|
|
|
config CSRC_IOASIC
|
|
bool
|
|
|
|
config CSRC_POWERTV
|
|
bool
|
|
|
|
config CSRC_R4K_LIB
|
|
bool
|
|
|
|
config CSRC_R4K
|
|
select CSRC_R4K_LIB
|
|
bool
|
|
|
|
config CSRC_SB1250
|
|
bool
|
|
|
|
config GPIO_TXX9
|
|
select GENERIC_GPIO
|
|
select ARCH_REQUIRE_GPIOLIB
|
|
bool
|
|
|
|
config CFE
|
|
bool
|
|
|
|
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 NO_IOPORT
|
|
def_bool n
|
|
|
|
config GENERIC_ISA_DMA
|
|
bool
|
|
select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
|
|
|
|
config GENERIC_ISA_DMA_SUPPORT_BROKEN
|
|
bool
|
|
select GENERIC_ISA_DMA
|
|
|
|
config GENERIC_GPIO
|
|
bool
|
|
|
|
#
|
|
# Endianess 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 "Endianess 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 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 IRQ_CPU
|
|
bool
|
|
|
|
config IRQ_CPU_RM7K
|
|
bool
|
|
|
|
config IRQ_CPU_RM9K
|
|
bool
|
|
|
|
config IRQ_MSP_SLP
|
|
bool
|
|
|
|
config IRQ_MSP_CIC
|
|
bool
|
|
|
|
config IRQ_TXX9
|
|
bool
|
|
|
|
config IRQ_GT641XX
|
|
bool
|
|
|
|
config IRQ_GIC
|
|
bool
|
|
|
|
config IRQ_CPU_OCTEON
|
|
bool
|
|
|
|
config MIPS_BOARDS_GEN
|
|
bool
|
|
|
|
config PCI_GT64XXX_PCI0
|
|
bool
|
|
|
|
config NO_EXCEPT_FILL
|
|
bool
|
|
|
|
config MIPS_RM9122
|
|
bool
|
|
select SERIAL_RM9000
|
|
|
|
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 PNX8550
|
|
bool
|
|
select SOC_PNX8550
|
|
|
|
config SOC_PNX8550
|
|
bool
|
|
select DMA_NONCOHERENT
|
|
select HW_HAS_PCI
|
|
select SYS_HAS_CPU_MIPS32_R1
|
|
select SYS_HAS_EARLY_PRINTK
|
|
select SYS_SUPPORTS_32BIT_KERNEL
|
|
select GENERIC_GPIO
|
|
|
|
config SWAP_IO_SPACE
|
|
bool
|
|
|
|
config SERIAL_RM9000
|
|
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 ARC32
|
|
bool
|
|
|
|
config 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 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 compatiable to
|
|
bonito64.
|
|
|
|
config CPU_LOONGSON2F
|
|
bool "Loongson 2F"
|
|
depends on SYS_HAS_CPU_LOONGSON2F
|
|
select CPU_LOONGSON2
|
|
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_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
|
|
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
|
|
|
|
config CPU_R5000
|
|
bool "R5000"
|
|
depends on SYS_HAS_CPU_R5000
|
|
select CPU_SUPPORTS_32BIT_KERNEL
|
|
select CPU_SUPPORTS_64BIT_KERNEL
|
|
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
|
|
|
|
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 EXPERIMENTAL
|
|
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
|
|
help
|
|
QED / PMC-Sierra RM52xx-series ("Nevada") processors.
|
|
|
|
config CPU_R8000
|
|
bool "R8000"
|
|
depends on EXPERIMENTAL
|
|
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
|
|
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
|
|
|
|
config CPU_RM9000
|
|
bool "RM9000"
|
|
depends on SYS_HAS_CPU_RM9000
|
|
select CPU_HAS_PREFETCH
|
|
select CPU_SUPPORTS_32BIT_KERNEL
|
|
select CPU_SUPPORTS_64BIT_KERNEL
|
|
select CPU_SUPPORTS_HIGHMEM
|
|
select WEAK_ORDERING
|
|
|
|
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 WEAK_ORDERING
|
|
|
|
config CPU_CAVIUM_OCTEON
|
|
bool "Cavium Octeon processor"
|
|
depends on SYS_HAS_CPU_CAVIUM_OCTEON
|
|
select IRQ_CPU
|
|
select IRQ_CPU_OCTEON
|
|
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
|
|
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.
|
|
|
|
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
|
|
|
|
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_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_RM9000
|
|
bool
|
|
|
|
config SYS_HAS_CPU_SB1
|
|
bool
|
|
|
|
config SYS_HAS_CPU_CAVIUM_OCTEON
|
|
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
|
|
|
|
#
|
|
# 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 (EXPERIMENTAL && 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 EXPERIMENTAL && !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 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
|
|
|
|
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
|
|
help
|
|
This is a kernel model which is also known a VSMP or lately
|
|
has been marketesed into SMVP.
|
|
|
|
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.
|
|
|
|
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_APSP_KSPD
|
|
bool "Enable KSPD"
|
|
depends on MIPS_VPE_APSP_API
|
|
default y
|
|
help
|
|
KSPD is a kernel daemon that accepts syscall requests from the SP
|
|
side, actions them and returns the results. It also handles the
|
|
"exit" syscall notifying other kernel modules the SP program is
|
|
exiting. You probably want to say yes here.
|
|
|
|
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
|
|
|
|
#
|
|
# 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
|
|
|
|
config GENERIC_CLOCKEVENTS_BROADCAST
|
|
bool
|
|
|
|
#
|
|
# CPU non-features
|
|
#
|
|
config CPU_DADDI_WORKAROUNDS
|
|
bool
|
|
|
|
config CPU_R4000_WORKAROUNDS
|
|
bool
|
|
select CPU_R4400_WORKAROUNDS
|
|
|
|
config CPU_R4400_WORKAROUNDS
|
|
bool
|
|
|
|
#
|
|
# Use the generic interrupt handling code in kernel/irq/:
|
|
#
|
|
config GENERIC_HARDIRQS
|
|
bool
|
|
default y
|
|
|
|
config GENERIC_IRQ_PROBE
|
|
bool
|
|
default y
|
|
|
|
config IRQ_PER_CPU
|
|
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_POPULATES_NODE_MAP
|
|
def_bool y
|
|
|
|
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
|
|
|
|
source "mm/Kconfig"
|
|
|
|
config SMP
|
|
bool "Multi-Processing support"
|
|
depends on SYS_SUPPORTS_SMP
|
|
select IRQ_PER_CPU
|
|
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.
|
|
|
|
source "kernel/time/Kconfig"
|
|
|
|
#
|
|
# 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 MIPS_INSANE_LARGE
|
|
bool "Support for large 64-bit configurations"
|
|
depends on CPU_R10000 && 64BIT
|
|
help
|
|
MIPS R10000 does support a 44 bit / 16TB address space as opposed to
|
|
previous 64-bit processors which only supported 40 bit / 1TB. If you
|
|
need processes of more than 1TB virtual address space, say Y here.
|
|
This will result in additional memory usage, so it is not
|
|
recommended for normal users.
|
|
|
|
config KEXEC
|
|
bool "Kexec system call (EXPERIMENTAL)"
|
|
depends on EXPERIMENTAL
|
|
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 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.
|
|
|
|
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
|
|
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"
|
|
|
|
#
|
|
# 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. Documentation on writing device drivers for TurboChannel
|
|
is available at:
|
|
<http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
|
|
|
|
#config ACCESSBUS
|
|
# bool "Access.Bus support"
|
|
# depends on TC
|
|
|
|
config MMU
|
|
bool
|
|
default y
|
|
|
|
config I8253
|
|
bool
|
|
select MIPS_EXTERNAL_TIMER
|
|
|
|
config ZONE_DMA32
|
|
bool
|
|
|
|
source "drivers/pcmcia/Kconfig"
|
|
|
|
source "drivers/pci/hotplug/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
|
|
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 "fs/Kconfig"
|
|
|
|
source "arch/mips/Kconfig.debug"
|
|
|
|
source "security/Kconfig"
|
|
|
|
source "crypto/Kconfig"
|
|
|
|
source "lib/Kconfig"
|