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