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 select GENERIC_HARDIRQS_NO__DO_IRQ 22 select GENERIC_HARDIRQS_NO_DEPRECATED 23 # GENERIC_ALLOCATOR is used by dma_alloc_coherent() 24 select GENERIC_ALLOCATOR 25 select GENERIC_IRQ_SHOW 26 select HAVE_ARCH_KGDB 27 select HAVE_ARCH_TRACEHOOK 28 select NO_IOPORT 29 select GENERIC_IOMAP 30 # mostly generic routines, with some accelerated ones 31 ---help--- 32 Qualcomm Hexagon is a processor architecture designed for high 33 performance and low power across a wide variety of applications. 34 35config HEXAGON_ARCH_V1 36 bool 37 38config HEXAGON_ARCH_V2 39 bool 40 41config HEXAGON_ARCH_V3 42 bool 43 44config HEXAGON_ARCH_V4 45 bool 46 47config FRAME_POINTER 48 def_bool y 49 50config LOCKDEP_SUPPORT 51 def_bool y 52 53config PCI 54 def_bool n 55 56config EARLY_PRINTK 57 def_bool y 58 59config KTIME_SCALAR 60 def_bool y 61 62config MMU 63 def_bool y 64 65config TRACE_IRQFLAGS_SUPPORT 66 def_bool y 67 68config GENERIC_CSUM 69 def_bool y 70 71# 72# Use the generic interrupt handling code in kernel/irq/: 73# 74config GENERIC_IRQ_PROBE 75 def_bool y 76 77#config ZONE_DMA 78# bool 79# default y 80 81config HAS_DMA 82 bool 83 select HAVE_DMA_ATTRS 84 default y 85 86config NEED_SG_DMA_LENGTH 87 def_bool y 88 89config RWSEM_GENERIC_SPINLOCK 90 def_bool n 91 92config RWSEM_XCHGADD_ALGORITHM 93 def_bool y 94 95config GENERIC_FIND_NEXT_BIT 96 def_bool y 97 98config GENERIC_HWEIGHT 99 def_bool y 100 101config GENERIC_TIME 102 def_bool y 103 104config GENERIC_CLOCKEVENTS 105 def_bool y 106 107config GENERIC_CLOCKEVENTS_BROADCAST 108 def_bool y 109 110config STACKTRACE_SUPPORT 111 def_bool y 112 select STACKTRACE 113 114config GENERIC_BUG 115 def_bool y 116 depends on BUG 117 118config BUG 119 def_bool y 120 121menu "Machine selection" 122 123choice 124 prompt "System type" 125 default HEXAGON_ARCH_V2 126 127config HEXAGON_COMET 128 bool "Comet Board" 129 select HEXAGON_ARCH_V2 130 ---help--- 131 Support for the Comet platform. 132 133endchoice 134 135config HEXAGON_VM 136 def_bool y 137 138config CMDLINE 139 string "Default kernel command string" 140 default "" 141 help 142 On some platforms, there is currently no way for the boot loader 143 to pass arguments to the kernel. For these, you should supply some 144 command-line options at build time by entering them here. At a 145 minimum, you should specify the memory size and the root device 146 (e.g., mem=64M root=/dev/nfs). 147 148config HEXAGON_ANGEL_TRAPS 149 bool "Use Angel Traps" 150 default n 151 ---help--- 152 Enable angel debug traps (for printk's). 153 154config SMP 155 bool "Multi-Processing support" 156 ---help--- 157 Enables SMP support in the kernel. If unsure, say "Y" 158 159config NR_CPUS 160 int "Maximum number of CPUs" if SMP 161 range 2 6 if SMP 162 default "1" if !SMP 163 default "6" if SMP 164 ---help--- 165 This allows you to specify the maximum number of CPUs which this 166 kernel will support. The maximum supported value is 6 and the 167 minimum value which makes sense is 2. 168 169 This is purely to save memory - each supported CPU adds 170 approximately eight kilobytes to the kernel image. 171 172choice 173 prompt "Kernel page size" 174 default PAGE_SIZE_4KB 175 ---help--- 176 Changes the default page size; use with caution. 177 178config PAGE_SIZE_4KB 179 bool "4KB" 180 181config PAGE_SIZE_16KB 182 bool "16KB" 183 184config PAGE_SIZE_64KB 185 bool "64KB" 186 187config PAGE_SIZE_256KB 188 bool "256KB" 189 190endchoice 191 192source "mm/Kconfig" 193 194source "kernel/Kconfig.hz" 195source "kernel/time/Kconfig" 196 197config GENERIC_GPIO 198 bool "Generic GPIO support" 199 default n 200 201endmenu 202 203source "init/Kconfig" 204source "drivers/Kconfig" 205source "fs/Kconfig" 206 207menu "Executable File Formats" 208source "fs/Kconfig.binfmt" 209endmenu 210 211source "net/Kconfig" 212source "security/Kconfig" 213source "crypto/Kconfig" 214source "lib/Kconfig" 215 216menu "Kernel hacking" 217source "lib/Kconfig.debug" 218endmenu 219