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 GENERIC_PENDING_IRQ if SMP 17 select HAVE_IRQ_WORK 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 select STACKTRACE_SUPPORT 30 select KTIME_SCALAR 31 select GENERIC_CLOCKEVENTS 32 select GENERIC_CLOCKEVENTS_BROADCAST 33 select MODULES_USE_ELF_RELA 34 ---help--- 35 Qualcomm Hexagon is a processor architecture designed for high 36 performance and low power across a wide variety of applications. 37 38config HEXAGON_ARCH_V1 39 bool 40 41config HEXAGON_ARCH_V2 42 bool 43 44config HEXAGON_ARCH_V3 45 bool 46 47config HEXAGON_ARCH_V4 48 bool 49 50config FRAME_POINTER 51 def_bool y 52 53config LOCKDEP_SUPPORT 54 def_bool y 55 56config PCI 57 def_bool n 58 59config EARLY_PRINTK 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 77config NEED_SG_DMA_LENGTH 78 def_bool y 79 80config RWSEM_GENERIC_SPINLOCK 81 def_bool n 82 83config RWSEM_XCHGADD_ALGORITHM 84 def_bool y 85 86config GENERIC_FIND_NEXT_BIT 87 def_bool y 88 89config GENERIC_HWEIGHT 90 def_bool y 91 92config STACKTRACE_SUPPORT 93 def_bool y 94 select STACKTRACE 95 96config GENERIC_BUG 97 def_bool y 98 depends on BUG 99 100menu "Machine selection" 101 102choice 103 prompt "System type" 104 default HEXAGON_COMET 105 106config HEXAGON_COMET 107 bool "Comet Board" 108 select HEXAGON_ARCH_V2 109 ---help--- 110 Support for the Comet platform. 111 112endchoice 113 114config HEXAGON_VM 115 def_bool y 116 117config CMDLINE 118 string "Default kernel command string" 119 default "" 120 help 121 On some platforms, there is currently no way for the boot loader 122 to pass arguments to the kernel. For these, you should supply some 123 command-line options at build time by entering them here. At a 124 minimum, you should specify the memory size and the root device 125 (e.g., mem=64M root=/dev/nfs). 126 127config HEXAGON_ANGEL_TRAPS 128 bool "Use Angel Traps" 129 default n 130 ---help--- 131 Enable angel debug traps (for printk's). 132 133config SMP 134 bool "Multi-Processing support" 135 ---help--- 136 Enables SMP support in the kernel. If unsure, say "Y" 137 138config NR_CPUS 139 int "Maximum number of CPUs" if SMP 140 range 2 6 if SMP 141 default "1" if !SMP 142 default "6" if SMP 143 ---help--- 144 This allows you to specify the maximum number of CPUs which this 145 kernel will support. The maximum supported value is 6 and the 146 minimum value which makes sense is 2. 147 148 This is purely to save memory - each supported CPU adds 149 approximately eight kilobytes to the kernel image. 150 151choice 152 prompt "Kernel page size" 153 default PAGE_SIZE_4KB 154 ---help--- 155 Changes the default page size; use with caution. 156 157config PAGE_SIZE_4KB 158 bool "4KB" 159 160config PAGE_SIZE_16KB 161 bool "16KB" 162 163config PAGE_SIZE_64KB 164 bool "64KB" 165 166config PAGE_SIZE_256KB 167 bool "256KB" 168 169endchoice 170 171source "mm/Kconfig" 172 173source "kernel/Kconfig.hz" 174 175config GENERIC_GPIO 176 def_bool n 177 178endmenu 179 180source "init/Kconfig" 181source "drivers/Kconfig" 182source "fs/Kconfig" 183 184menu "Executable File Formats" 185source "fs/Kconfig.binfmt" 186endmenu 187 188source "net/Kconfig" 189source "security/Kconfig" 190source "crypto/Kconfig" 191source "lib/Kconfig" 192 193menu "Kernel hacking" 194source "lib/Kconfig.debug" 195endmenu 196