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 GENERIC_PENDING_IRQ if SMP 16 select GENERIC_ATOMIC64 17 select HAVE_PERF_EVENTS 18 select HAVE_GENERIC_HARDIRQS 19 # GENERIC_ALLOCATOR is used by dma_alloc_coherent() 20 select GENERIC_ALLOCATOR 21 select GENERIC_IRQ_SHOW 22 select HAVE_ARCH_KGDB 23 select HAVE_ARCH_TRACEHOOK 24 select NO_IOPORT 25 select GENERIC_IOMAP 26 select GENERIC_SMP_IDLE_THREAD 27 select STACKTRACE_SUPPORT 28 select KTIME_SCALAR 29 select GENERIC_CLOCKEVENTS 30 select GENERIC_CLOCKEVENTS_BROADCAST 31 select MODULES_USE_ELF_RELA 32 select GENERIC_CPU_DEVICES 33 ---help--- 34 Qualcomm Hexagon is a processor architecture designed for high 35 performance and low power across a wide variety of applications. 36 37config HEXAGON_PHYS_OFFSET 38 def_bool y 39 ---help--- 40 Platforms that don't load the kernel at zero set this. 41 42config FRAME_POINTER 43 def_bool y 44 45config LOCKDEP_SUPPORT 46 def_bool y 47 48config PCI 49 def_bool n 50 51config EARLY_PRINTK 52 def_bool y 53 54config MMU 55 def_bool y 56 57config TRACE_IRQFLAGS_SUPPORT 58 def_bool y 59 60config GENERIC_CSUM 61 def_bool y 62 63# 64# Use the generic interrupt handling code in kernel/irq/: 65# 66config GENERIC_IRQ_PROBE 67 def_bool y 68 69config NEED_SG_DMA_LENGTH 70 def_bool y 71 72config RWSEM_GENERIC_SPINLOCK 73 def_bool n 74 75config RWSEM_XCHGADD_ALGORITHM 76 def_bool y 77 78config GENERIC_HWEIGHT 79 def_bool y 80 81config STACKTRACE_SUPPORT 82 def_bool y 83 select STACKTRACE 84 85config GENERIC_BUG 86 def_bool y 87 depends on BUG 88 89menu "Machine selection" 90 91choice 92 prompt "System type" 93 default HEXAGON_COMET 94 95config HEXAGON_COMET 96 bool "Comet Board" 97 ---help--- 98 Support for the Comet platform. 99 100endchoice 101 102config HEXAGON_ARCH_VERSION 103 int "Architecture version" 104 default 2 105 106config CMDLINE 107 string "Default kernel command string" 108 default "" 109 help 110 On some platforms, there is currently no way for the boot loader 111 to pass arguments to the kernel. For these, you should supply some 112 command-line options at build time by entering them here. At a 113 minimum, you should specify the memory size and the root device 114 (e.g., mem=64M root=/dev/nfs). 115 116config SMP 117 bool "Multi-Processing support" 118 ---help--- 119 Enables SMP support in the kernel. If unsure, say "Y" 120 121config NR_CPUS 122 int "Maximum number of CPUs" if SMP 123 range 2 6 if SMP 124 default "1" if !SMP 125 default "6" if SMP 126 ---help--- 127 This allows you to specify the maximum number of CPUs which this 128 kernel will support. The maximum supported value is 6 and the 129 minimum value which makes sense is 2. 130 131 This is purely to save memory - each supported CPU adds 132 approximately eight kilobytes to the kernel image. 133 134choice 135 prompt "Kernel page size" 136 default PAGE_SIZE_4KB 137 ---help--- 138 Changes the default page size; use with caution. 139 140config PAGE_SIZE_4KB 141 bool "4KB" 142 143config PAGE_SIZE_16KB 144 bool "16KB" 145 146config PAGE_SIZE_64KB 147 bool "64KB" 148 149config PAGE_SIZE_256KB 150 bool "256KB" 151 152endchoice 153 154source "mm/Kconfig" 155 156source "kernel/Kconfig.hz" 157 158endmenu 159 160source "init/Kconfig" 161source "drivers/Kconfig" 162source "fs/Kconfig" 163 164menu "Executable File Formats" 165source "fs/Kconfig.binfmt" 166endmenu 167 168source "net/Kconfig" 169source "security/Kconfig" 170source "crypto/Kconfig" 171source "lib/Kconfig" 172 173menu "Kernel hacking" 174source "lib/Kconfig.debug" 175endmenu 176