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