1config MICROBLAZE 2 def_bool y 3 select HAVE_MEMBLOCK 4 select HAVE_FUNCTION_TRACER 5 select HAVE_FUNCTION_TRACE_MCOUNT_TEST 6 select HAVE_FUNCTION_GRAPH_TRACER 7 select HAVE_DYNAMIC_FTRACE 8 select HAVE_FTRACE_MCOUNT_RECORD 9 select ARCH_WANT_OPTIONAL_GPIOLIB 10 select HAVE_OPROFILE 11 select HAVE_ARCH_KGDB 12 select HAVE_DMA_ATTRS 13 select HAVE_DMA_API_DEBUG 14 select TRACING_SUPPORT 15 select OF 16 select OF_EARLY_FLATTREE 17 select HAVE_GENERIC_HARDIRQS 18 select GENERIC_IRQ_PROBE 19 select GENERIC_IRQ_SHOW 20 select GENERIC_PCI_IOMAP 21 select GENERIC_CPU_DEVICES 22 23config SWAP 24 def_bool n 25 26config RWSEM_GENERIC_SPINLOCK 27 def_bool y 28 29config RWSEM_XCHGADD_ALGORITHM 30 bool 31 32config ARCH_HAS_ILOG2_U32 33 def_bool n 34 35config ARCH_HAS_ILOG2_U64 36 def_bool n 37 38config GENERIC_HWEIGHT 39 def_bool y 40 41config GENERIC_CALIBRATE_DELAY 42 def_bool y 43 44config GENERIC_TIME_VSYSCALL 45 def_bool n 46 47config GENERIC_CLOCKEVENTS 48 def_bool y 49 50config GENERIC_GPIO 51 def_bool y 52 53config GENERIC_CSUM 54 def_bool y 55 56config STACKTRACE_SUPPORT 57 def_bool y 58 59config LOCKDEP_SUPPORT 60 def_bool y 61 62config HAVE_LATENCYTOP_SUPPORT 63 def_bool y 64 65source "init/Kconfig" 66 67source "kernel/Kconfig.freezer" 68 69source "arch/microblaze/platform/Kconfig.platform" 70 71menu "Processor type and features" 72 73source "kernel/time/Kconfig" 74 75source "kernel/Kconfig.preempt" 76 77source "kernel/Kconfig.hz" 78 79config MMU 80 bool "MMU support" 81 default n 82 83config NO_MMU 84 bool 85 depends on !MMU 86 default y 87 88comment "Boot options" 89 90config CMDLINE_BOOL 91 bool "Default bootloader kernel arguments" 92 93config CMDLINE 94 string "Default kernel command string" 95 depends on CMDLINE_BOOL 96 default "console=ttyUL0,115200" 97 help 98 On some architectures there is currently no way for the boot loader 99 to pass arguments to the kernel. For these architectures, you should 100 supply some command-line options at build time by entering them 101 here. 102 103config CMDLINE_FORCE 104 bool "Force default kernel command string" 105 depends on CMDLINE_BOOL 106 default n 107 help 108 Set this to have arguments from the default kernel command string 109 override those passed by the boot loader. 110 111config SECCOMP 112 bool "Enable seccomp to safely compute untrusted bytecode" 113 depends on PROC_FS 114 default y 115 help 116 This kernel feature is useful for number crunching applications 117 that may need to compute untrusted bytecode during their 118 execution. By using pipes or other transports made available to 119 the process as file descriptors supporting the read/write 120 syscalls, it's possible to isolate those applications in 121 their own address space using seccomp. Once seccomp is 122 enabled via /proc/<pid>/seccomp, it cannot be disabled 123 and the task is only allowed to execute a few safe syscalls 124 defined by each seccomp mode. 125 126 If unsure, say Y. Only embedded should say N here. 127 128endmenu 129 130menu "Advanced setup" 131 132config ADVANCED_OPTIONS 133 bool "Prompt for advanced kernel configuration options" 134 help 135 This option will enable prompting for a variety of advanced kernel 136 configuration options. These options can cause the kernel to not 137 work if they are set incorrectly, but can be used to optimize certain 138 aspects of kernel memory management. 139 140 Unless you know what you are doing, say N here. 141 142comment "Default settings for advanced configuration options are used" 143 depends on !ADVANCED_OPTIONS 144 145config XILINX_UNCACHED_SHADOW 146 bool "Are you using uncached shadow for RAM ?" 147 depends on ADVANCED_OPTIONS && !MMU 148 default n 149 help 150 This is needed to be able to allocate uncachable memory regions. 151 The feature requires the design to define the RAM memory controller 152 window to be twice as large as the actual physical memory. 153 154config HIGHMEM_START_BOOL 155 bool "Set high memory pool address" 156 depends on ADVANCED_OPTIONS && HIGHMEM 157 help 158 This option allows you to set the base address of the kernel virtual 159 area used to map high memory pages. This can be useful in 160 optimizing the layout of kernel virtual memory. 161 162 Say N here unless you know what you are doing. 163 164config HIGHMEM_START 165 hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL 166 depends on MMU 167 default "0xfe000000" 168 169config LOWMEM_SIZE_BOOL 170 bool "Set maximum low memory" 171 depends on ADVANCED_OPTIONS && MMU 172 help 173 This option allows you to set the maximum amount of memory which 174 will be used as "low memory", that is, memory which the kernel can 175 access directly, without having to set up a kernel virtual mapping. 176 This can be useful in optimizing the layout of kernel virtual 177 memory. 178 179 Say N here unless you know what you are doing. 180 181config LOWMEM_SIZE 182 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL 183 default "0x30000000" 184 185config MANUAL_RESET_VECTOR 186 hex "Microblaze reset vector address setup" 187 default "0x0" 188 help 189 Set this option to have the kernel override the CPU Reset vector. 190 If zero, no change will be made to the MicroBlaze reset vector at 191 address 0x0. 192 If non-zero, a jump instruction to this address, will be written 193 to the reset vector at address 0x0. 194 If you are unsure, set it to default value 0x0. 195 196config KERNEL_START_BOOL 197 bool "Set custom kernel base address" 198 depends on ADVANCED_OPTIONS 199 help 200 This option allows you to set the kernel virtual address at which 201 the kernel will map low memory (the kernel image will be linked at 202 this address). This can be useful in optimizing the virtual memory 203 layout of the system. 204 205 Say N here unless you know what you are doing. 206 207config KERNEL_START 208 hex "Virtual address of kernel base" if KERNEL_START_BOOL 209 default "0xc0000000" if MMU 210 default KERNEL_BASE_ADDR if !MMU 211 212config TASK_SIZE_BOOL 213 bool "Set custom user task size" 214 depends on ADVANCED_OPTIONS && MMU 215 help 216 This option allows you to set the amount of virtual address space 217 allocated to user tasks. This can be useful in optimizing the 218 virtual memory layout of the system. 219 220 Say N here unless you know what you are doing. 221 222config TASK_SIZE 223 hex "Size of user task space" if TASK_SIZE_BOOL 224 default "0x80000000" 225 226choice 227 prompt "Page size" 228 default MICROBLAZE_4K_PAGES 229 depends on ADVANCED_OPTIONS && !MMU 230 help 231 Select the kernel logical page size. Increasing the page size 232 will reduce software overhead at each page boundary, allow 233 hardware prefetch mechanisms to be more effective, and allow 234 larger dma transfers increasing IO efficiency and reducing 235 overhead. However the utilization of memory will increase. 236 For example, each cached file will using a multiple of the 237 page size to hold its contents and the difference between the 238 end of file and the end of page is wasted. 239 240 If unsure, choose 4K_PAGES. 241 242config MICROBLAZE_4K_PAGES 243 bool "4k page size" 244 245config MICROBLAZE_8K_PAGES 246 bool "8k page size" 247 248config MICROBLAZE_16K_PAGES 249 bool "16k page size" 250 251config MICROBLAZE_32K_PAGES 252 bool "32k page size" 253 254endchoice 255 256endmenu 257 258source "mm/Kconfig" 259 260menu "Executable file formats" 261 262source "fs/Kconfig.binfmt" 263 264endmenu 265 266menu "Bus Options" 267 268config PCI 269 bool "PCI support" 270 271config PCI_DOMAINS 272 def_bool PCI 273 274config PCI_SYSCALL 275 def_bool PCI 276 277config PCI_XILINX 278 bool "Xilinx PCI host bridge support" 279 depends on PCI 280 281source "drivers/pci/Kconfig" 282 283endmenu 284 285source "net/Kconfig" 286 287source "drivers/Kconfig" 288 289source "fs/Kconfig" 290 291source "arch/microblaze/Kconfig.debug" 292 293source "security/Kconfig" 294 295source "crypto/Kconfig" 296 297source "lib/Kconfig" 298