+++ /dev/null
-# SPDX-License-Identifier: GPL-2.0
-config METAG
- def_bool y
- select EMBEDDED
- select GENERIC_ATOMIC64
- select GENERIC_CLOCKEVENTS
- select GENERIC_IRQ_SHOW
- select GENERIC_SMP_IDLE_THREAD
- select HAVE_64BIT_ALIGNED_ACCESS
- select HAVE_ARCH_TRACEHOOK
- select HAVE_C_RECORDMCOUNT
- select HAVE_DEBUG_KMEMLEAK
- select HAVE_DEBUG_STACKOVERFLOW
- select HAVE_DYNAMIC_FTRACE
- select HAVE_EXIT_THREAD
- select HAVE_FTRACE_MCOUNT_RECORD
- select HAVE_FUNCTION_TRACER
- select HAVE_KERNEL_BZIP2
- select HAVE_KERNEL_GZIP
- select HAVE_KERNEL_LZO
- select HAVE_KERNEL_XZ
- select HAVE_MEMBLOCK
- select HAVE_MEMBLOCK_NODE_MAP
- select HAVE_MOD_ARCH_SPECIFIC
- select HAVE_OPROFILE
- select HAVE_PERF_EVENTS
- select HAVE_SYSCALL_TRACEPOINTS
- select HAVE_UNDERSCORE_SYMBOL_PREFIX
- select IRQ_DOMAIN
- select GENERIC_IRQ_EFFECTIVE_AFF_MASK
- select MODULES_USE_ELF_RELA
- select OF
- select OF_EARLY_FLATTREE
- select SPARSE_IRQ
- select CPU_NO_EFFICIENT_FFS
-
-config STACKTRACE_SUPPORT
- def_bool y
-
-config LOCKDEP_SUPPORT
- def_bool y
-
-config RWSEM_GENERIC_SPINLOCK
- def_bool y
-
-config RWSEM_XCHGADD_ALGORITHM
- bool
-
-config GENERIC_HWEIGHT
- def_bool y
-
-config GENERIC_CALIBRATE_DELAY
- def_bool y
-
-config NO_IOPORT_MAP
- def_bool y
-
-source "init/Kconfig"
-
-source "kernel/Kconfig.freezer"
-
-menu "Processor type and features"
-
-config MMU
- def_bool y
-
-config STACK_GROWSUP
- def_bool y
-
-config HOTPLUG_CPU
- bool "Enable CPU hotplug support"
- depends on SMP
- help
- Say Y here to allow turning CPUs off and on. CPUs can be
- controlled through /sys/devices/system/cpu.
-
- Say N if you want to disable CPU hotplug.
-
-config HIGHMEM
- bool "High Memory Support"
- help
- The address space of Meta processors is only 4 Gigabytes large
- and it has to accommodate user address space, kernel address
- space as well as some memory mapped IO. That means that, if you
- have a large amount of physical memory and/or IO, not all of the
- memory can be "permanently mapped" by the kernel. The physical
- memory that is not permanently mapped is called "high memory".
-
- Depending on the selected kernel/user memory split, minimum
- vmalloc space and actual amount of RAM, you may not need this
- option which should result in a slightly faster kernel.
-
- If unsure, say n.
-
-source "arch/metag/mm/Kconfig"
-
-source "arch/metag/Kconfig.soc"
-
-config METAG_META12
- bool
- help
- Select this from the SoC config symbol to indicate that it contains a
- Meta 1.2 core.
-
-config METAG_META21
- bool
- help
- Select this from the SoC config symbol to indicate that it contains a
- Meta 2.1 core.
-
-config SMP
- bool "Symmetric multi-processing support"
- depends on METAG_META21 && METAG_META21_MMU
- help
- This enables support for systems with more than one thread running
- Linux. If you have a system with only one thread running Linux,
- say N. Otherwise, say Y.
-
-config NR_CPUS
- int "Maximum number of CPUs (2-4)" if SMP
- range 2 4 if SMP
- default "1" if !SMP
- default "4" if SMP
-
-config METAG_SMP_WRITE_REORDERING
- bool
- help
- This attempts to prevent cache-memory incoherence due to external
- reordering of writes from different hardware threads when SMP is
- enabled. It adds fences (system event 0) to smp_mb and smp_rmb in an
- attempt to catch some of the cases, and also before writes to shared
- memory in LOCK1 protected atomics and spinlocks.
- This will not completely prevent cache incoherency on affected cores.
-
-config METAG_LNKGET_AROUND_CACHE
- bool
- depends on METAG_META21
- help
- This indicates that the LNKGET/LNKSET instructions go around the
- cache, which requires some extra cache flushes when the memory needs
- to be accessed by normal GET/SET instructions too.
-
-choice
- prompt "Atomicity primitive"
- default METAG_ATOMICITY_LNKGET
- help
- This option selects the mechanism for performing atomic operations.
-
-config METAG_ATOMICITY_IRQSOFF
- depends on !SMP
- bool "irqsoff"
- help
- This option disables interrupts to achieve atomicity. This mechanism
- is not SMP-safe.
-
-config METAG_ATOMICITY_LNKGET
- depends on METAG_META21
- bool "lnkget/lnkset"
- help
- This option uses the LNKGET and LNKSET instructions to achieve
- atomicity. LNKGET/LNKSET are load-link/store-conditional instructions.
- Choose this option if your system requires low latency.
-
-config METAG_ATOMICITY_LOCK1
- depends on SMP
- bool "lock1"
- help
- This option uses the LOCK1 instruction for atomicity. This is mainly
- provided as a debugging aid if the lnkget/lnkset atomicity primitive
- isn't working properly.
-
-endchoice
-
-config METAG_FPU
- bool "FPU Support"
- depends on METAG_META21
- default y
- help
- This option allows processes to use FPU hardware available with this
- CPU. If this option is not enabled FPU registers will not be saved
- and restored on context-switch.
-
- If you plan on running programs which are compiled to use hard floats
- say Y here.
-
-config METAG_DSP
- bool "DSP Support"
- help
- This option allows processes to use DSP hardware available
- with this CPU. If this option is not enabled DSP registers
- will not be saved and restored on context-switch.
-
- If you plan on running DSP programs say Y here.
-
-config METAG_PERFCOUNTER_IRQS
- bool "PerfCounters interrupt support"
- depends on METAG_META21
- help
- This option enables using interrupts to collect information from
- Performance Counters. This option is supported in new META21
- (starting from HTP265).
-
- When disabled, Performance Counters information will be collected
- based on Timer Interrupt.
-
-config HW_PERF_EVENTS
- def_bool METAG_PERFCOUNTER_IRQS && PERF_EVENTS
-
-config METAG_DA
- bool "DA support"
- help
- Say Y if you plan to use a DA debug adapter with Linux. The presence
- of the DA will be detected automatically at boot, so it is safe to say
- Y to this option even when booting without a DA.
-
- This enables support for services provided by DA JTAG debug adapters,
- such as:
- - communication over DA channels (such as the console driver).
- - use of the DA filesystem.
-
-menu "Boot options"
-
-config METAG_BUILTIN_DTB
- bool "Embed DTB in kernel image"
- default y
- help
- Embeds a device tree binary in the kernel image.
-
-config METAG_BUILTIN_DTB_NAME
- string "Built in DTB"
- depends on METAG_BUILTIN_DTB
- help
- Set the name of the DTB to embed (leave blank to pick one
- automatically based on kernel configuration).
-
-config CMDLINE_BOOL
- bool "Default bootloader kernel arguments"
-
-config CMDLINE
- string "Kernel command line"
- depends on CMDLINE_BOOL
- help
- On some architectures there is currently no way for the boot loader
- to pass arguments to the kernel. For these architectures, you should
- supply some command-line options at build time by entering them
- here.
-
-config CMDLINE_FORCE
- bool "Force default kernel command string"
- depends on CMDLINE_BOOL
- help
- Set this to have arguments from the default kernel command string
- override those passed by the boot loader.
-
-endmenu
-
-source "kernel/Kconfig.preempt"
-
-source kernel/Kconfig.hz
-
-endmenu
-
-menu "Power management options"
-
-source kernel/power/Kconfig
-
-endmenu
-
-menu "Executable file formats"
-
-source "fs/Kconfig.binfmt"
-
-endmenu
-
-source "net/Kconfig"
-
-source "drivers/Kconfig"
-
-source "fs/Kconfig"
-
-source "arch/metag/Kconfig.debug"
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
-
-source "lib/Kconfig"
git.samba.org / sfrench / cifs-2.6.git / blobdiff