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authorCatalin Marinas <catalin.marinas@arm.com>2012-04-20 14:45:54 +0100
committerCatalin Marinas <catalin.marinas@arm.com>2012-09-17 13:42:21 +0100
commit8c2c3df31e3b87cb5348e48776c366ebd1dc5a7a (patch)
treec67b6e60bffd8d61a7d61ccb48f18cf1d6a68d75 /arch/arm64/Kconfig
parent10b663aef1c24794d32141be86b4dfcc64293bd0 (diff)
downloadlinux-8c2c3df31e3b87cb5348e48776c366ebd1dc5a7a.tar.gz
arm64: Build infrastructure
This patch adds Makefile and Kconfig files required for building an AArch64 kernel. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm64/Kconfig')
-rw-r--r--arch/arm64/Kconfig222
1 files changed, 222 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
new file mode 100644
index 00000000000..767ba568545
--- /dev/null
+++ b/arch/arm64/Kconfig
@@ -0,0 +1,222 @@
+config ARM64
+ def_bool y
+ select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
+ select GENERIC_CLOCKEVENTS
+ select GENERIC_HARDIRQS_NO_DEPRECATED
+ select GENERIC_IOMAP
+ select GENERIC_IRQ_PROBE
+ select GENERIC_IRQ_SHOW
+ select GENERIC_SMP_IDLE_THREAD
+ select GENERIC_TIME_VSYSCALL
+ select HARDIRQS_SW_RESEND
+ select HAVE_ARCH_TRACEHOOK
+ select HAVE_DMA_API_DEBUG
+ select HAVE_DMA_ATTRS
+ select HAVE_GENERIC_DMA_COHERENT
+ select HAVE_GENERIC_HARDIRQS
+ select HAVE_HW_BREAKPOINT if PERF_EVENTS
+ select HAVE_IRQ_WORK
+ select HAVE_MEMBLOCK
+ select HAVE_PERF_EVENTS
+ select HAVE_SPARSE_IRQ
+ select IRQ_DOMAIN
+ select NO_BOOTMEM
+ select OF
+ select OF_EARLY_FLATTREE
+ select PERF_USE_VMALLOC
+ select RTC_LIB
+ select SPARSE_IRQ
+ help
+ ARM 64-bit (AArch64) Linux support.
+
+config 64BIT
+ def_bool y
+
+config ARCH_PHYS_ADDR_T_64BIT
+ def_bool y
+
+config MMU
+ def_bool y
+
+config NO_IOPORT
+ def_bool y
+
+config STACKTRACE_SUPPORT
+ def_bool y
+
+config LOCKDEP_SUPPORT
+ def_bool y
+
+config TRACE_IRQFLAGS_SUPPORT
+ def_bool y
+
+config GENERIC_LOCKBREAK
+ def_bool y
+ depends on SMP && PREEMPT
+
+config RWSEM_GENERIC_SPINLOCK
+ def_bool y
+
+config GENERIC_HWEIGHT
+ def_bool y
+
+config GENERIC_CSUM
+ def_bool y
+
+config GENERIC_CALIBRATE_DELAY
+ def_bool y
+
+config ZONE_DMA32
+ def_bool y
+
+config ARCH_DMA_ADDR_T_64BIT
+ def_bool y
+
+config NEED_DMA_MAP_STATE
+ def_bool y
+
+config NEED_SG_DMA_LENGTH
+ def_bool y
+
+config SWIOTLB
+ def_bool y
+
+config IOMMU_HELPER
+ def_bool SWIOTLB
+
+source "init/Kconfig"
+
+source "kernel/Kconfig.freezer"
+
+menu "System Type"
+
+endmenu
+
+menu "Bus support"
+
+config ARM_AMBA
+ bool
+
+endmenu
+
+menu "Kernel Features"
+
+source "kernel/time/Kconfig"
+
+config ARM64_64K_PAGES
+ bool "Enable 64KB pages support"
+ help
+ This feature enables 64KB pages support (4KB by default)
+ allowing only two levels of page tables and faster TLB
+ look-up. AArch32 emulation is not available when this feature
+ is enabled.
+
+config SMP
+ bool "Symmetric Multi-Processing"
+ select USE_GENERIC_SMP_HELPERS
+ help
+ This enables support for systems with more than one CPU. 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, single processor machines. On a single
+ processor machine, the kernel will run faster if you say N
+ here.
+
+ If you don't know what to do here, say N.
+
+config NR_CPUS
+ int "Maximum number of CPUs (2-32)"
+ range 2 32
+ depends on SMP
+ default "4"
+
+source kernel/Kconfig.preempt
+
+config HZ
+ int
+ default 100
+
+config ARCH_HAS_HOLES_MEMORYMODEL
+ def_bool y if SPARSEMEM
+
+config ARCH_SPARSEMEM_ENABLE
+ def_bool y
+ select SPARSEMEM_VMEMMAP_ENABLE
+
+config ARCH_SPARSEMEM_DEFAULT
+ def_bool ARCH_SPARSEMEM_ENABLE
+
+config ARCH_SELECT_MEMORY_MODEL
+ def_bool ARCH_SPARSEMEM_ENABLE
+
+config HAVE_ARCH_PFN_VALID
+ def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
+
+config HW_PERF_EVENTS
+ bool "Enable hardware performance counter support for perf events"
+ depends on PERF_EVENTS
+ default y
+ help
+ Enable hardware performance counter support for perf events. If
+ disabled, perf events will use software events only.
+
+source "mm/Kconfig"
+
+endmenu
+
+menu "Boot options"
+
+config CMDLINE
+ string "Default kernel command string"
+ default ""
+ help
+ Provide a set of default command-line options at build time by
+ entering them here. As a minimum, you should specify the the
+ root device (e.g. root=/dev/nfs).
+
+config CMDLINE_FORCE
+ bool "Always use the default kernel command string"
+ help
+ Always use the default kernel command string, even if the boot
+ loader passes other arguments to the kernel.
+ This is useful if you cannot or don't want to change the
+ command-line options your boot loader passes to the kernel.
+
+endmenu
+
+menu "Userspace binary formats"
+
+source "fs/Kconfig.binfmt"
+
+config COMPAT
+ bool "Kernel support for 32-bit EL0"
+ depends on !ARM64_64K_PAGES
+ select COMPAT_BINFMT_ELF
+ help
+ This option enables support for a 32-bit EL0 running under a 64-bit
+ kernel at EL1. AArch32-specific components such as system calls,
+ the user helper functions, VFP support and the ptrace interface are
+ handled appropriately by the kernel.
+
+ If you want to execute 32-bit userspace applications, say Y.
+
+config SYSVIPC_COMPAT
+ def_bool y
+ depends on COMPAT && SYSVIPC
+
+endmenu
+
+source "net/Kconfig"
+
+source "drivers/Kconfig"
+
+source "fs/Kconfig"
+
+source "arch/arm64/Kconfig.debug"
+
+source "security/Kconfig"
+
+source "crypto/Kconfig"
+
+source "lib/Kconfig"