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Linux/arch/hexagon/Kconfig

  1 # Hexagon configuration
  2 comment "Linux Kernel Configuration for Hexagon"
  3 
  4 config HEXAGON
  5         def_bool y
  6         select HAVE_OPROFILE
  7         # Other pending projects/to-do items.
  8         # select HAVE_REGS_AND_STACK_ACCESS_API
  9         # select HAVE_HW_BREAKPOINT if PERF_EVENTS
 10         # select ARCH_HAS_CPU_IDLE_WAIT
 11         # select ARCH_WANT_OPTIONAL_GPIOLIB
 12         # select ARCH_REQUIRE_GPIOLIB
 13         # select HAVE_CLK
 14         # select GENERIC_PENDING_IRQ if SMP
 15         select GENERIC_ATOMIC64
 16         select HAVE_PERF_EVENTS
 17         # GENERIC_ALLOCATOR is used by dma_alloc_coherent()
 18         select GENERIC_ALLOCATOR
 19         select GENERIC_IRQ_SHOW
 20         select HAVE_ARCH_KGDB
 21         select HAVE_ARCH_TRACEHOOK
 22         select NO_IOPORT_MAP
 23         select GENERIC_IOMAP
 24         select GENERIC_SMP_IDLE_THREAD
 25         select STACKTRACE_SUPPORT
 26         select GENERIC_CLOCKEVENTS
 27         select GENERIC_CLOCKEVENTS_BROADCAST
 28         select MODULES_USE_ELF_RELA
 29         select GENERIC_CPU_DEVICES
 30         ---help---
 31           Qualcomm Hexagon is a processor architecture designed for high
 32           performance and low power across a wide variety of applications.
 33 
 34 config HEXAGON_PHYS_OFFSET
 35         def_bool y
 36         ---help---
 37           Platforms that don't load the kernel at zero set this.
 38 
 39 config FRAME_POINTER
 40         def_bool y
 41 
 42 config LOCKDEP_SUPPORT
 43         def_bool y
 44 
 45 config PCI
 46         def_bool n
 47 
 48 config EARLY_PRINTK
 49         def_bool y
 50 
 51 config MMU
 52         def_bool y
 53 
 54 config TRACE_IRQFLAGS_SUPPORT
 55         def_bool y
 56 
 57 config GENERIC_CSUM
 58         def_bool y
 59 
 60 #
 61 # Use the generic interrupt handling code in kernel/irq/:
 62 #
 63 config GENERIC_IRQ_PROBE
 64         def_bool y
 65 
 66 config NEED_SG_DMA_LENGTH
 67         def_bool y
 68 
 69 config RWSEM_GENERIC_SPINLOCK
 70         def_bool n
 71 
 72 config RWSEM_XCHGADD_ALGORITHM
 73         def_bool y
 74 
 75 config GENERIC_HWEIGHT
 76         def_bool y
 77 
 78 config STACKTRACE_SUPPORT
 79         def_bool y
 80         select STACKTRACE
 81 
 82 config GENERIC_BUG
 83         def_bool y
 84         depends on BUG
 85 
 86 menu "Machine selection"
 87 
 88 choice
 89         prompt "System type"
 90         default HEXAGON_COMET
 91 
 92 config HEXAGON_COMET
 93         bool "Comet Board"
 94         ---help---
 95           Support for the Comet platform.
 96 
 97 endchoice
 98 
 99 config HEXAGON_ARCH_VERSION
100         int "Architecture version"
101         default 2
102 
103 config CMDLINE
104         string "Default kernel command string"
105         default ""
106         help
107           On some platforms, there is currently no way for the boot loader
108           to pass arguments to the kernel. For these, you should supply some
109           command-line options at build time by entering them here.  At a
110           minimum, you should specify the memory size and the root device
111           (e.g., mem=64M root=/dev/nfs).
112 
113 config SMP
114         bool "Multi-Processing support"
115         ---help---
116           Enables SMP support in the kernel.  If unsure, say "Y"
117 
118 config NR_CPUS
119         int "Maximum number of CPUs" if SMP
120         range 2 6 if SMP
121         default "1" if !SMP
122         default "6" if SMP
123         ---help---
124           This allows you to specify the maximum number of CPUs which this
125           kernel will support.  The maximum supported value is 6 and the
126           minimum value which makes sense is 2.
127 
128           This is purely to save memory - each supported CPU adds
129           approximately eight kilobytes to the kernel image.
130 
131 choice
132         prompt "Kernel page size"
133         default PAGE_SIZE_4KB
134         ---help---
135           Changes the default page size; use with caution.
136 
137 config PAGE_SIZE_4KB
138         bool "4KB"
139 
140 config PAGE_SIZE_16KB
141         bool "16KB"
142 
143 config PAGE_SIZE_64KB
144         bool "64KB"
145 
146 config PAGE_SIZE_256KB
147         bool "256KB"
148 
149 endchoice
150 
151 source "mm/Kconfig"
152 
153 source "kernel/Kconfig.hz"
154 
155 endmenu
156 
157 source "init/Kconfig"
158 source "kernel/Kconfig.freezer"
159 source "drivers/Kconfig"
160 source "fs/Kconfig"
161 
162 menu "Executable File Formats"
163 source "fs/Kconfig.binfmt"
164 endmenu
165 
166 source "net/Kconfig"
167 source "security/Kconfig"
168 source "crypto/Kconfig"
169 source "lib/Kconfig"
170 
171 menu "Kernel hacking"
172 source "lib/Kconfig.debug"
173 endmenu

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