1# Hexagon configuration 2comment "Linux Kernel Configuration for Hexagon" 3 4config HEXAGON 5 def_bool y 6 select HAVE_OPROFILE 7 select USE_GENERIC_SMP_HELPERS if SMP 8 # Other pending projects/to-do items. 9 # select HAVE_REGS_AND_STACK_ACCESS_API 10 # select HAVE_HW_BREAKPOINT if PERF_EVENTS 11 # select ARCH_HAS_CPU_IDLE_WAIT 12 # select ARCH_WANT_OPTIONAL_GPIOLIB 13 # select ARCH_REQUIRE_GPIOLIB 14 # select HAVE_CLK 15 # select IRQ_PER_CPU 16 select HAVE_IRQ_WORK 17 # select GENERIC_PENDING_IRQ if SMP 18 select GENERIC_ATOMIC64 19 select HAVE_PERF_EVENTS 20 select HAVE_GENERIC_HARDIRQS 21 # GENERIC_ALLOCATOR is used by dma_alloc_coherent() 22 select GENERIC_ALLOCATOR 23 select GENERIC_IRQ_SHOW 24 select HAVE_ARCH_KGDB 25 select HAVE_ARCH_TRACEHOOK 26 select NO_IOPORT 27 select GENERIC_IOMAP 28 select GENERIC_SMP_IDLE_THREAD 29 # mostly generic routines, with some accelerated ones 30 ---help--- 31 Qualcomm Hexagon is a processor architecture designed for high 32 performance and low power across a wide variety of applications. 33 34config HEXAGON_ARCH_V1 35 bool 36 37config HEXAGON_ARCH_V2 38 bool 39 40config HEXAGON_ARCH_V3 41 bool 42 43config HEXAGON_ARCH_V4 44 bool 45 46config FRAME_POINTER 47 def_bool y 48 49config LOCKDEP_SUPPORT 50 def_bool y 51 52config PCI 53 def_bool n 54 55config EARLY_PRINTK 56 def_bool y 57 58config KTIME_SCALAR 59 def_bool y 60 61config MMU 62 def_bool y 63 64config TRACE_IRQFLAGS_SUPPORT 65 def_bool y 66 67config GENERIC_CSUM 68 def_bool y 69 70# 71# Use the generic interrupt handling code in kernel/irq/: 72# 73config GENERIC_IRQ_PROBE 74 def_bool y 75 76#config ZONE_DMA 77# bool 78# default y 79 80config HAS_DMA 81 bool 82 select HAVE_DMA_ATTRS 83 default y 84 85config NEED_SG_DMA_LENGTH 86 def_bool y 87 88config RWSEM_GENERIC_SPINLOCK 89 def_bool n 90 91config RWSEM_XCHGADD_ALGORITHM 92 def_bool y 93 94config GENERIC_FIND_NEXT_BIT 95 def_bool y 96 97config GENERIC_HWEIGHT 98 def_bool y 99 100config GENERIC_TIME 101 def_bool y 102 103config GENERIC_CLOCKEVENTS 104 def_bool y 105 106config GENERIC_CLOCKEVENTS_BROADCAST 107 def_bool y 108 109config STACKTRACE_SUPPORT 110 def_bool y 111 select STACKTRACE 112 113config GENERIC_BUG 114 def_bool y 115 depends on BUG 116 117config BUG 118 def_bool y 119 120menu "Machine selection" 121 122choice 123 prompt "System type" 124 default HEXAGON_ARCH_V2 125 126config HEXAGON_COMET 127 bool "Comet Board" 128 select HEXAGON_ARCH_V2 129 ---help--- 130 Support for the Comet platform. 131 132endchoice 133 134config HEXAGON_VM 135 def_bool y 136 137config CMDLINE 138 string "Default kernel command string" 139 default "" 140 help 141 On some platforms, there is currently no way for the boot loader 142 to pass arguments to the kernel. For these, you should supply some 143 command-line options at build time by entering them here. At a 144 minimum, you should specify the memory size and the root device 145 (e.g., mem=64M root=/dev/nfs). 146 147config HEXAGON_ANGEL_TRAPS 148 bool "Use Angel Traps" 149 default n 150 ---help--- 151 Enable angel debug traps (for printk's). 152 153config SMP 154 bool "Multi-Processing support" 155 ---help--- 156 Enables SMP support in the kernel. If unsure, say "Y" 157 158config NR_CPUS 159 int "Maximum number of CPUs" if SMP 160 range 2 6 if SMP 161 default "1" if !SMP 162 default "6" if SMP 163 ---help--- 164 This allows you to specify the maximum number of CPUs which this 165 kernel will support. The maximum supported value is 6 and the 166 minimum value which makes sense is 2. 167 168 This is purely to save memory - each supported CPU adds 169 approximately eight kilobytes to the kernel image. 170 171choice 172 prompt "Kernel page size" 173 default PAGE_SIZE_4KB 174 ---help--- 175 Changes the default page size; use with caution. 176 177config PAGE_SIZE_4KB 178 bool "4KB" 179 180config PAGE_SIZE_16KB 181 bool "16KB" 182 183config PAGE_SIZE_64KB 184 bool "64KB" 185 186config PAGE_SIZE_256KB 187 bool "256KB" 188 189endchoice 190 191source "mm/Kconfig" 192 193source "kernel/Kconfig.hz" 194source "kernel/time/Kconfig" 195 196config GENERIC_GPIO 197 bool "Generic GPIO support" 198 default n 199 200endmenu 201 202source "init/Kconfig" 203source "drivers/Kconfig" 204source "fs/Kconfig" 205 206menu "Executable File Formats" 207source "fs/Kconfig.binfmt" 208endmenu 209 210source "net/Kconfig" 211source "security/Kconfig" 212source "crypto/Kconfig" 213source "lib/Kconfig" 214 215menu "Kernel hacking" 216source "lib/Kconfig.debug" 217endmenu 218