1 # SPDX-License-Identifier: GPL-2.0
3 # For a description of the syntax of this configuration file,
4 # see Documentation/kbuild/kconfig-language.txt.
9 select ARCH_HAS_SYNC_DMA_FOR_CPU
10 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
12 select DMA_NONCOHERENT_OPS
13 select GENERIC_ATOMIC64
14 select GENERIC_IRQ_SHOW
15 select HAVE_ARCH_TRACEHOOK
20 select OF_EARLY_FLATTREE
21 select GENERIC_CLOCKEVENTS
22 select MODULES_USE_ELF_RELA
23 select ARCH_NO_COHERENT_DMA_MMAP
31 config RWSEM_GENERIC_SPINLOCK
34 config GENERIC_CALIBRATE_DELAY
37 config GENERIC_HWEIGHT
45 bool "Build a big kernel"
47 The C6X function call instruction has a limited range of +/- 2MiB.
48 This is sufficient for most kernels, but some kernel configurations
49 with lots of compiled-in functionality may require a larger range
50 for function calls. Use this option to have the compiler generate
51 function calls with 32-bit range. This will make the kernel both
58 # Use the generic interrupt handling code in kernel/irq/
60 source "kernel/Kconfig.freezer"
63 bool "Default bootloader kernel arguments"
66 string "Kernel command line"
67 depends on CMDLINE_BOOL
68 default "console=ttyS0,57600"
70 On some architectures there is currently no way for the boot loader
71 to pass arguments to the kernel. For these architectures, you should
72 supply some command-line options at build time by entering them
76 bool "Force default kernel command string"
77 depends on CMDLINE_BOOL
80 Set this to have arguments from the default kernel command string
81 override those passed by the boot loader.
84 bool "Build big-endian kernel"
87 Say Y if you plan on running a kernel in big-endian mode.
88 Note that your board must be properly built and your board
89 port must properly enable any big-endian related features
90 of your chipset/board/processor.
92 config FORCE_MAX_ZONEORDER
93 int "Maximum zone order"
96 The kernel memory allocator divides physically contiguous memory
97 blocks into "zones", where each zone is a power of two number of
98 pages. This option selects the largest power of two that the kernel
99 keeps in the memory allocator. If you need to allocate very large
100 blocks of physically contiguous memory, then you may need to
103 This config option is actually maximum order plus one. For example,
104 a value of 11 means that the largest free memory block is 2^10 pages.
106 menu "Processor type and features"
108 source "arch/c6x/platforms/Kconfig"
110 config KERNEL_RAM_BASE_ADDRESS
111 hex "Virtual address of memory base"
112 default 0xe0000000 if SOC_TMS320C6455
113 default 0xe0000000 if SOC_TMS320C6457
114 default 0xe0000000 if SOC_TMS320C6472
119 source "kernel/Kconfig.preempt"
121 source "kernel/Kconfig.hz"
125 menu "Executable file formats"
127 source "fs/Kconfig.binfmt"
133 source "drivers/Kconfig"
137 source "security/Kconfig"
139 source "crypto/Kconfig"
143 menu "Kernel hacking"
145 source "lib/Kconfig.debug"
148 bool "Check the user pointer address"
151 Usually the pointer transfer from user space is checked to see if its
152 address is in the kernel space.
154 Say N here to disable that check to improve the performance.