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 IRQ_DOMAIN 18 select HAVE_GENERIC_HARDIRQS 19 select GENERIC_IRQ_PROBE 20 select GENERIC_IRQ_SHOW 21 select GENERIC_PCI_IOMAP 22 select GENERIC_CPU_DEVICES 23 select GENERIC_ATOMIC64 24 25config SWAP 26 def_bool n 27 28config RWSEM_GENERIC_SPINLOCK 29 def_bool y 30 31config RWSEM_XCHGADD_ALGORITHM 32 bool 33 34config ARCH_HAS_ILOG2_U32 35 def_bool n 36 37config ARCH_HAS_ILOG2_U64 38 def_bool n 39 40config GENERIC_HWEIGHT 41 def_bool y 42 43config GENERIC_CALIBRATE_DELAY 44 def_bool y 45 46config GENERIC_TIME_VSYSCALL 47 def_bool n 48 49config GENERIC_CLOCKEVENTS 50 def_bool y 51 52config GENERIC_GPIO 53 def_bool y 54 55config GENERIC_CSUM 56 def_bool y 57 58config STACKTRACE_SUPPORT 59 def_bool y 60 61config LOCKDEP_SUPPORT 62 def_bool y 63 64config HAVE_LATENCYTOP_SUPPORT 65 def_bool y 66 67source "init/Kconfig" 68 69source "kernel/Kconfig.freezer" 70 71source "arch/microblaze/platform/Kconfig.platform" 72 73menu "Processor type and features" 74 75source "kernel/time/Kconfig" 76 77source "kernel/Kconfig.preempt" 78 79source "kernel/Kconfig.hz" 80 81config MMU 82 bool "MMU support" 83 default n 84 85config NO_MMU 86 bool 87 depends on !MMU 88 default y 89 90comment "Boot options" 91 92config CMDLINE_BOOL 93 bool "Default bootloader kernel arguments" 94 95config CMDLINE 96 string "Default kernel command string" 97 depends on CMDLINE_BOOL 98 default "console=ttyUL0,115200" 99 help 100 On some architectures there is currently no way for the boot loader 101 to pass arguments to the kernel. For these architectures, you should 102 supply some command-line options at build time by entering them 103 here. 104 105config CMDLINE_FORCE 106 bool "Force default kernel command string" 107 depends on CMDLINE_BOOL 108 default n 109 help 110 Set this to have arguments from the default kernel command string 111 override those passed by the boot loader. 112 113config SECCOMP 114 bool "Enable seccomp to safely compute untrusted bytecode" 115 depends on PROC_FS 116 default y 117 help 118 This kernel feature is useful for number crunching applications 119 that may need to compute untrusted bytecode during their 120 execution. By using pipes or other transports made available to 121 the process as file descriptors supporting the read/write 122 syscalls, it's possible to isolate those applications in 123 their own address space using seccomp. Once seccomp is 124 enabled via /proc/<pid>/seccomp, it cannot be disabled 125 and the task is only allowed to execute a few safe syscalls 126 defined by each seccomp mode. 127 128 If unsure, say Y. Only embedded should say N here. 129 130endmenu 131 132menu "Advanced setup" 133 134config ADVANCED_OPTIONS 135 bool "Prompt for advanced kernel configuration options" 136 help 137 This option will enable prompting for a variety of advanced kernel 138 configuration options. These options can cause the kernel to not 139 work if they are set incorrectly, but can be used to optimize certain 140 aspects of kernel memory management. 141 142 Unless you know what you are doing, say N here. 143 144comment "Default settings for advanced configuration options are used" 145 depends on !ADVANCED_OPTIONS 146 147config XILINX_UNCACHED_SHADOW 148 bool "Are you using uncached shadow for RAM ?" 149 depends on ADVANCED_OPTIONS && !MMU 150 default n 151 help 152 This is needed to be able to allocate uncachable memory regions. 153 The feature requires the design to define the RAM memory controller 154 window to be twice as large as the actual physical memory. 155 156config HIGHMEM_START_BOOL 157 bool "Set high memory pool address" 158 depends on ADVANCED_OPTIONS && HIGHMEM 159 help 160 This option allows you to set the base address of the kernel virtual 161 area used to map high memory pages. This can be useful in 162 optimizing the layout of kernel virtual memory. 163 164 Say N here unless you know what you are doing. 165 166config HIGHMEM_START 167 hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL 168 depends on MMU 169 default "0xfe000000" 170 171config LOWMEM_SIZE_BOOL 172 bool "Set maximum low memory" 173 depends on ADVANCED_OPTIONS && MMU 174 help 175 This option allows you to set the maximum amount of memory which 176 will be used as "low memory", that is, memory which the kernel can 177 access directly, without having to set up a kernel virtual mapping. 178 This can be useful in optimizing the layout of kernel virtual 179 memory. 180 181 Say N here unless you know what you are doing. 182 183config LOWMEM_SIZE 184 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL 185 default "0x30000000" 186 187config MANUAL_RESET_VECTOR 188 hex "Microblaze reset vector address setup" 189 default "0x0" 190 help 191 Set this option to have the kernel override the CPU Reset vector. 192 If zero, no change will be made to the MicroBlaze reset vector at 193 address 0x0. 194 If non-zero, a jump instruction to this address, will be written 195 to the reset vector at address 0x0. 196 If you are unsure, set it to default value 0x0. 197 198config KERNEL_START_BOOL 199 bool "Set custom kernel base address" 200 depends on ADVANCED_OPTIONS 201 help 202 This option allows you to set the kernel virtual address at which 203 the kernel will map low memory (the kernel image will be linked at 204 this address). This can be useful in optimizing the virtual memory 205 layout of the system. 206 207 Say N here unless you know what you are doing. 208 209config KERNEL_START 210 hex "Virtual address of kernel base" if KERNEL_START_BOOL 211 default "0xc0000000" if MMU 212 default KERNEL_BASE_ADDR if !MMU 213 214config TASK_SIZE_BOOL 215 bool "Set custom user task size" 216 depends on ADVANCED_OPTIONS && MMU 217 help 218 This option allows you to set the amount of virtual address space 219 allocated to user tasks. This can be useful in optimizing the 220 virtual memory layout of the system. 221 222 Say N here unless you know what you are doing. 223 224config TASK_SIZE 225 hex "Size of user task space" if TASK_SIZE_BOOL 226 default "0x80000000" 227 228choice 229 prompt "Page size" 230 default MICROBLAZE_4K_PAGES 231 depends on ADVANCED_OPTIONS && !MMU 232 help 233 Select the kernel logical page size. Increasing the page size 234 will reduce software overhead at each page boundary, allow 235 hardware prefetch mechanisms to be more effective, and allow 236 larger dma transfers increasing IO efficiency and reducing 237 overhead. However the utilization of memory will increase. 238 For example, each cached file will using a multiple of the 239 page size to hold its contents and the difference between the 240 end of file and the end of page is wasted. 241 242 If unsure, choose 4K_PAGES. 243 244config MICROBLAZE_4K_PAGES 245 bool "4k page size" 246 247config MICROBLAZE_8K_PAGES 248 bool "8k page size" 249 250config MICROBLAZE_16K_PAGES 251 bool "16k page size" 252 253config MICROBLAZE_32K_PAGES 254 bool "32k page size" 255 256endchoice 257 258endmenu 259 260source "mm/Kconfig" 261 262menu "Executable file formats" 263 264source "fs/Kconfig.binfmt" 265 266endmenu 267 268menu "Bus Options" 269 270config PCI 271 bool "PCI support" 272 273config PCI_DOMAINS 274 def_bool PCI 275 276config PCI_SYSCALL 277 def_bool PCI 278 279config PCI_XILINX 280 bool "Xilinx PCI host bridge support" 281 depends on PCI 282 283source "drivers/pci/Kconfig" 284 285endmenu 286 287source "net/Kconfig" 288 289source "drivers/Kconfig" 290 291source "fs/Kconfig" 292 293source "arch/microblaze/Kconfig.debug" 294 295source "security/Kconfig" 296 297source "crypto/Kconfig" 298 299source "lib/Kconfig" 300