1# Hexagon configuration 2comment "Linux Kernel Configuration for Hexagon" 3 4config 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 select HAVE_DMA_ATTRS 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_PHYS_OFFSET 36 def_bool y 37 ---help--- 38 Platforms that don't load the kernel at zero set this. 39 40config FRAME_POINTER 41 def_bool y 42 43config LOCKDEP_SUPPORT 44 def_bool y 45 46config PCI 47 def_bool n 48 49config EARLY_PRINTK 50 def_bool y 51 52config MMU 53 def_bool y 54 55config TRACE_IRQFLAGS_SUPPORT 56 def_bool y 57 58config GENERIC_CSUM 59 def_bool y 60 61# 62# Use the generic interrupt handling code in kernel/irq/: 63# 64config GENERIC_IRQ_PROBE 65 def_bool y 66 67config NEED_SG_DMA_LENGTH 68 def_bool y 69 70config RWSEM_GENERIC_SPINLOCK 71 def_bool n 72 73config RWSEM_XCHGADD_ALGORITHM 74 def_bool y 75 76config GENERIC_HWEIGHT 77 def_bool y 78 79config STACKTRACE_SUPPORT 80 def_bool y 81 select STACKTRACE 82 83config GENERIC_BUG 84 def_bool y 85 depends on BUG 86 87menu "Machine selection" 88 89choice 90 prompt "System type" 91 default HEXAGON_COMET 92 93config HEXAGON_COMET 94 bool "Comet Board" 95 ---help--- 96 Support for the Comet platform. 97 98endchoice 99 100config HEXAGON_ARCH_VERSION 101 int "Architecture version" 102 default 2 103 104config CMDLINE 105 string "Default kernel command string" 106 default "" 107 help 108 On some platforms, there is currently no way for the boot loader 109 to pass arguments to the kernel. For these, you should supply some 110 command-line options at build time by entering them here. At a 111 minimum, you should specify the memory size and the root device 112 (e.g., mem=64M root=/dev/nfs). 113 114config SMP 115 bool "Multi-Processing support" 116 ---help--- 117 Enables SMP support in the kernel. If unsure, say "Y" 118 119config NR_CPUS 120 int "Maximum number of CPUs" if SMP 121 range 2 6 if SMP 122 default "1" if !SMP 123 default "6" if SMP 124 ---help--- 125 This allows you to specify the maximum number of CPUs which this 126 kernel will support. The maximum supported value is 6 and the 127 minimum value which makes sense is 2. 128 129 This is purely to save memory - each supported CPU adds 130 approximately eight kilobytes to the kernel image. 131 132choice 133 prompt "Kernel page size" 134 default PAGE_SIZE_4KB 135 ---help--- 136 Changes the default page size; use with caution. 137 138config PAGE_SIZE_4KB 139 bool "4KB" 140 141config PAGE_SIZE_16KB 142 bool "16KB" 143 144config PAGE_SIZE_64KB 145 bool "64KB" 146 147config PAGE_SIZE_256KB 148 bool "256KB" 149 150endchoice 151 152source "mm/Kconfig" 153 154source "kernel/Kconfig.hz" 155 156endmenu 157 158source "init/Kconfig" 159source "kernel/Kconfig.freezer" 160source "drivers/Kconfig" 161source "fs/Kconfig" 162 163menu "Executable File Formats" 164source "fs/Kconfig.binfmt" 165endmenu 166 167source "net/Kconfig" 168source "security/Kconfig" 169source "crypto/Kconfig" 170source "lib/Kconfig" 171 172menu "Kernel hacking" 173source "lib/Kconfig.debug" 174endmenu 175