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