1# 2# For a description of the syntax of this configuration file, 3# see Documentation/kbuild/kconfig-language.txt. 4# 5 6mainmenu "Linux/SuperH Kernel Configuration" 7 8config SUPERH 9 def_bool y 10 select EMBEDDED 11 select HAVE_CLK 12 select HAVE_IDE 13 select HAVE_OPROFILE 14 select HAVE_GENERIC_DMA_COHERENT 15 select HAVE_IOREMAP_PROT if MMU 16 select HAVE_ARCH_TRACEHOOK 17 select HAVE_DMA_API_DEBUG 18 select RTC_LIB 19 help 20 The SuperH is a RISC processor targeted for use in embedded systems 21 and consumer electronics; it was also used in the Sega Dreamcast 22 gaming console. The SuperH port has a home page at 23 <http://www.linux-sh.org/>. 24 25config SUPERH32 26 def_bool ARCH = "sh" 27 select HAVE_KPROBES 28 select HAVE_KRETPROBES 29 select HAVE_FUNCTION_TRACER 30 select HAVE_FTRACE_MCOUNT_RECORD 31 select HAVE_DYNAMIC_FTRACE 32 select HAVE_ARCH_KGDB 33 select ARCH_HIBERNATION_POSSIBLE if MMU 34 35config SUPERH64 36 def_bool ARCH = "sh64" 37 38config ARCH_DEFCONFIG 39 string 40 default "arch/sh/configs/shx3_defconfig" if SUPERH32 41 default "arch/sh/configs/cayman_defconfig" if SUPERH64 42 43config RWSEM_GENERIC_SPINLOCK 44 def_bool y 45 46config RWSEM_XCHGADD_ALGORITHM 47 bool 48 49config GENERIC_BUG 50 def_bool y 51 depends on BUG && SUPERH32 52 53config GENERIC_FIND_NEXT_BIT 54 def_bool y 55 56config GENERIC_HWEIGHT 57 def_bool y 58 59config GENERIC_HARDIRQS 60 def_bool y 61 62config GENERIC_HARDIRQS_NO__DO_IRQ 63 def_bool y 64 65config GENERIC_IRQ_PROBE 66 def_bool y 67 68config GENERIC_GPIO 69 def_bool n 70 71config GENERIC_CALIBRATE_DELAY 72 bool 73 74config GENERIC_IOMAP 75 bool 76 77config GENERIC_TIME 78 def_bool y 79 80config GENERIC_CLOCKEVENTS 81 def_bool y 82 83config GENERIC_CLOCKEVENTS_BROADCAST 84 bool 85 86config GENERIC_CMOS_UPDATE 87 def_bool y 88 depends on SH_SH03 || SH_DREAMCAST 89 90config GENERIC_LOCKBREAK 91 def_bool y 92 depends on SMP && PREEMPT 93 94config SYS_SUPPORTS_PM 95 bool 96 depends on !SMP 97 98config ARCH_SUSPEND_POSSIBLE 99 def_bool n 100 101config ARCH_HIBERNATION_POSSIBLE 102 def_bool n 103 104config SYS_SUPPORTS_APM_EMULATION 105 bool 106 select ARCH_SUSPEND_POSSIBLE 107 108config SYS_SUPPORTS_SMP 109 bool 110 111config SYS_SUPPORTS_NUMA 112 bool 113 114config SYS_SUPPORTS_PCI 115 bool 116 117config SYS_SUPPORTS_CMT 118 bool 119 120config SYS_SUPPORTS_MTU2 121 bool 122 123config SYS_SUPPORTS_TMU 124 bool 125 126config STACKTRACE_SUPPORT 127 def_bool y 128 129config LOCKDEP_SUPPORT 130 def_bool y 131 132config HAVE_LATENCYTOP_SUPPORT 133 def_bool y 134 depends on !SMP 135 136config ARCH_HAS_ILOG2_U32 137 def_bool n 138 139config ARCH_HAS_ILOG2_U64 140 def_bool n 141 142config ARCH_NO_VIRT_TO_BUS 143 def_bool y 144 145config ARCH_HAS_DEFAULT_IDLE 146 def_bool y 147 148config IO_TRAPPED 149 bool 150 151source "init/Kconfig" 152 153source "kernel/Kconfig.freezer" 154 155menu "System type" 156 157# 158# Processor families 159# 160config CPU_SH2 161 bool 162 163config CPU_SH2A 164 bool 165 select CPU_SH2 166 167config CPU_SH3 168 bool 169 select CPU_HAS_INTEVT 170 select CPU_HAS_SR_RB 171 select SYS_SUPPORTS_TMU 172 173config CPU_SH4 174 bool 175 select CPU_HAS_INTEVT 176 select CPU_HAS_SR_RB 177 select CPU_HAS_FPU if !CPU_SH4AL_DSP 178 select SYS_SUPPORTS_TMU 179 180config CPU_SH4A 181 bool 182 select CPU_SH4 183 184config CPU_SH4AL_DSP 185 bool 186 select CPU_SH4A 187 select CPU_HAS_DSP 188 189config CPU_SH5 190 bool 191 select CPU_HAS_FPU 192 select SYS_SUPPORTS_TMU 193 194config CPU_SHX2 195 bool 196 197config CPU_SHX3 198 bool 199 200config ARCH_SHMOBILE 201 bool 202 select ARCH_SUSPEND_POSSIBLE 203 204if SUPERH32 205 206choice 207 prompt "Processor sub-type selection" 208 209# 210# Processor subtypes 211# 212 213# SH-2 Processor Support 214 215config CPU_SUBTYPE_SH7619 216 bool "Support SH7619 processor" 217 select CPU_SH2 218 select SYS_SUPPORTS_CMT 219 220# SH-2A Processor Support 221 222config CPU_SUBTYPE_SH7201 223 bool "Support SH7201 processor" 224 select CPU_SH2A 225 select CPU_HAS_FPU 226 select SYS_SUPPORTS_MTU2 227 228config CPU_SUBTYPE_SH7203 229 bool "Support SH7203 processor" 230 select CPU_SH2A 231 select CPU_HAS_FPU 232 select SYS_SUPPORTS_CMT 233 select SYS_SUPPORTS_MTU2 234 235config CPU_SUBTYPE_SH7206 236 bool "Support SH7206 processor" 237 select CPU_SH2A 238 select SYS_SUPPORTS_CMT 239 select SYS_SUPPORTS_MTU2 240 241config CPU_SUBTYPE_SH7263 242 bool "Support SH7263 processor" 243 select CPU_SH2A 244 select CPU_HAS_FPU 245 select SYS_SUPPORTS_CMT 246 select SYS_SUPPORTS_MTU2 247 248config CPU_SUBTYPE_MXG 249 bool "Support MX-G processor" 250 select CPU_SH2A 251 select SYS_SUPPORTS_MTU2 252 help 253 Select MX-G if running on an R8A03022BG part. 254 255# SH-3 Processor Support 256 257config CPU_SUBTYPE_SH7705 258 bool "Support SH7705 processor" 259 select CPU_SH3 260 261config CPU_SUBTYPE_SH7706 262 bool "Support SH7706 processor" 263 select CPU_SH3 264 help 265 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU. 266 267config CPU_SUBTYPE_SH7707 268 bool "Support SH7707 processor" 269 select CPU_SH3 270 help 271 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU. 272 273config CPU_SUBTYPE_SH7708 274 bool "Support SH7708 processor" 275 select CPU_SH3 276 help 277 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or 278 if you have a 100 Mhz SH-3 HD6417708R CPU. 279 280config CPU_SUBTYPE_SH7709 281 bool "Support SH7709 processor" 282 select CPU_SH3 283 help 284 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU. 285 286config CPU_SUBTYPE_SH7710 287 bool "Support SH7710 processor" 288 select CPU_SH3 289 select CPU_HAS_DSP 290 help 291 Select SH7710 if you have a SH3-DSP SH7710 CPU. 292 293config CPU_SUBTYPE_SH7712 294 bool "Support SH7712 processor" 295 select CPU_SH3 296 select CPU_HAS_DSP 297 help 298 Select SH7712 if you have a SH3-DSP SH7712 CPU. 299 300config CPU_SUBTYPE_SH7720 301 bool "Support SH7720 processor" 302 select CPU_SH3 303 select CPU_HAS_DSP 304 select SYS_SUPPORTS_CMT 305 help 306 Select SH7720 if you have a SH3-DSP SH7720 CPU. 307 308config CPU_SUBTYPE_SH7721 309 bool "Support SH7721 processor" 310 select CPU_SH3 311 select CPU_HAS_DSP 312 select SYS_SUPPORTS_CMT 313 help 314 Select SH7721 if you have a SH3-DSP SH7721 CPU. 315 316# SH-4 Processor Support 317 318config CPU_SUBTYPE_SH7750 319 bool "Support SH7750 processor" 320 select CPU_SH4 321 help 322 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU. 323 324config CPU_SUBTYPE_SH7091 325 bool "Support SH7091 processor" 326 select CPU_SH4 327 help 328 Select SH7091 if you have an SH-4 based Sega device (such as 329 the Dreamcast, Naomi, and Naomi 2). 330 331config CPU_SUBTYPE_SH7750R 332 bool "Support SH7750R processor" 333 select CPU_SH4 334 335config CPU_SUBTYPE_SH7750S 336 bool "Support SH7750S processor" 337 select CPU_SH4 338 339config CPU_SUBTYPE_SH7751 340 bool "Support SH7751 processor" 341 select CPU_SH4 342 help 343 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU, 344 or if you have a HD6417751R CPU. 345 346config CPU_SUBTYPE_SH7751R 347 bool "Support SH7751R processor" 348 select CPU_SH4 349 350config CPU_SUBTYPE_SH7760 351 bool "Support SH7760 processor" 352 select CPU_SH4 353 354config CPU_SUBTYPE_SH4_202 355 bool "Support SH4-202 processor" 356 select CPU_SH4 357 358# SH-4A Processor Support 359 360config CPU_SUBTYPE_SH7723 361 bool "Support SH7723 processor" 362 select CPU_SH4A 363 select CPU_SHX2 364 select ARCH_SHMOBILE 365 select ARCH_SPARSEMEM_ENABLE 366 select SYS_SUPPORTS_CMT 367 help 368 Select SH7723 if you have an SH-MobileR2 CPU. 369 370config CPU_SUBTYPE_SH7724 371 bool "Support SH7724 processor" 372 select CPU_SH4A 373 select CPU_SHX2 374 select ARCH_SHMOBILE 375 select ARCH_SPARSEMEM_ENABLE 376 select SYS_SUPPORTS_CMT 377 help 378 Select SH7724 if you have an SH-MobileR2R CPU. 379 380config CPU_SUBTYPE_SH7763 381 bool "Support SH7763 processor" 382 select CPU_SH4A 383 help 384 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU. 385 386config CPU_SUBTYPE_SH7770 387 bool "Support SH7770 processor" 388 select CPU_SH4A 389 390config CPU_SUBTYPE_SH7780 391 bool "Support SH7780 processor" 392 select CPU_SH4A 393 394config CPU_SUBTYPE_SH7785 395 bool "Support SH7785 processor" 396 select CPU_SH4A 397 select CPU_SHX2 398 select ARCH_SPARSEMEM_ENABLE 399 select SYS_SUPPORTS_NUMA 400 401config CPU_SUBTYPE_SH7786 402 bool "Support SH7786 processor" 403 select CPU_SH4A 404 select CPU_SHX3 405 select CPU_HAS_PTEAEX 406 select ARCH_SPARSEMEM_ENABLE 407 select SYS_SUPPORTS_NUMA 408 409config CPU_SUBTYPE_SHX3 410 bool "Support SH-X3 processor" 411 select CPU_SH4A 412 select CPU_SHX3 413 select ARCH_SPARSEMEM_ENABLE 414 select SYS_SUPPORTS_NUMA 415 select SYS_SUPPORTS_SMP 416 select GENERIC_CLOCKEVENTS_BROADCAST if SMP 417 418# SH4AL-DSP Processor Support 419 420config CPU_SUBTYPE_SH7343 421 bool "Support SH7343 processor" 422 select CPU_SH4AL_DSP 423 select ARCH_SHMOBILE 424 select SYS_SUPPORTS_CMT 425 426config CPU_SUBTYPE_SH7722 427 bool "Support SH7722 processor" 428 select CPU_SH4AL_DSP 429 select CPU_SHX2 430 select ARCH_SHMOBILE 431 select ARCH_SPARSEMEM_ENABLE 432 select SYS_SUPPORTS_NUMA 433 select SYS_SUPPORTS_CMT 434 435config CPU_SUBTYPE_SH7366 436 bool "Support SH7366 processor" 437 select CPU_SH4AL_DSP 438 select CPU_SHX2 439 select ARCH_SHMOBILE 440 select ARCH_SPARSEMEM_ENABLE 441 select SYS_SUPPORTS_NUMA 442 select SYS_SUPPORTS_CMT 443 444endchoice 445 446endif 447 448if SUPERH64 449 450choice 451 prompt "Processor sub-type selection" 452 453# SH-5 Processor Support 454 455config CPU_SUBTYPE_SH5_101 456 bool "Support SH5-101 processor" 457 select CPU_SH5 458 459config CPU_SUBTYPE_SH5_103 460 bool "Support SH5-103 processor" 461 select CPU_SH5 462 463endchoice 464 465endif 466 467source "arch/sh/mm/Kconfig" 468 469source "arch/sh/Kconfig.cpu" 470 471source "arch/sh/boards/Kconfig" 472 473menu "Timer and clock configuration" 474 475config SH_TIMER_TMU 476 bool "TMU timer driver" 477 depends on SYS_SUPPORTS_TMU 478 default y 479 help 480 This enables the build of the TMU timer driver. 481 482config SH_TIMER_CMT 483 bool "CMT timer driver" 484 depends on SYS_SUPPORTS_CMT 485 default y 486 help 487 This enables build of the CMT timer driver. 488 489config SH_TIMER_MTU2 490 bool "MTU2 timer driver" 491 depends on SYS_SUPPORTS_MTU2 492 default y 493 help 494 This enables build of the MTU2 timer driver. 495 496config SH_PCLK_FREQ 497 int "Peripheral clock frequency (in Hz)" 498 default "27000000" if CPU_SUBTYPE_SH7343 499 default "31250000" if CPU_SUBTYPE_SH7619 500 default "32000000" if CPU_SUBTYPE_SH7722 501 default "33333333" if CPU_SUBTYPE_SH7770 || CPU_SUBTYPE_SH7723 || \ 502 CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \ 503 CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \ 504 CPU_SUBTYPE_SH7263 || CPU_SUBTYPE_MXG || \ 505 CPU_SUBTYPE_SH7786 || CPU_SUBTYPE_SH7724 506 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R 507 default "66000000" if CPU_SUBTYPE_SH4_202 508 default "50000000" 509 help 510 This option is used to specify the peripheral clock frequency. 511 This is necessary for determining the reference clock value on 512 platforms lacking an RTC. 513 514config SH_CLK_CPG 515 def_bool y 516 517config SH_CLK_CPG_LEGACY 518 depends on SH_CLK_CPG 519 def_bool y if !CPU_SUBTYPE_SH7785 520 521config SH_CLK_MD 522 int "CPU Mode Pin Setting" 523 depends on CPU_SH2 524 default 6 if CPU_SUBTYPE_SH7206 525 default 5 if CPU_SUBTYPE_SH7619 526 default 0 527 help 528 MD2 - MD0 pin setting. 529 530source "kernel/time/Kconfig" 531 532endmenu 533 534menu "CPU Frequency scaling" 535 536source "drivers/cpufreq/Kconfig" 537 538config SH_CPU_FREQ 539 tristate "SuperH CPU Frequency driver" 540 depends on CPU_FREQ 541 select CPU_FREQ_TABLE 542 help 543 This adds the cpufreq driver for SuperH. Any CPU that supports 544 clock rate rounding through the clock framework can use this 545 driver. While it will make the kernel slightly larger, this is 546 harmless for CPUs that don't support rate rounding. The driver 547 will also generate a notice in the boot log before disabling 548 itself if the CPU in question is not capable of rate rounding. 549 550 For details, take a look at <file:Documentation/cpu-freq>. 551 552 If unsure, say N. 553 554endmenu 555 556source "arch/sh/drivers/Kconfig" 557 558endmenu 559 560menu "Kernel features" 561 562source kernel/Kconfig.hz 563 564config KEXEC 565 bool "kexec system call (EXPERIMENTAL)" 566 depends on SUPERH32 && EXPERIMENTAL && MMU 567 help 568 kexec is a system call that implements the ability to shutdown your 569 current kernel, and to start another kernel. It is like a reboot 570 but it is independent of the system firmware. And like a reboot 571 you can start any kernel with it, not just Linux. 572 573 The name comes from the similarity to the exec system call. 574 575 It is an ongoing process to be certain the hardware in a machine 576 is properly shutdown, so do not be surprised if this code does not 577 initially work for you. It may help to enable device hotplugging 578 support. As of this writing the exact hardware interface is 579 strongly in flux, so no good recommendation can be made. 580 581config CRASH_DUMP 582 bool "kernel crash dumps (EXPERIMENTAL)" 583 depends on SUPERH32 && EXPERIMENTAL 584 help 585 Generate crash dump after being started by kexec. 586 This should be normally only set in special crash dump kernels 587 which are loaded in the main kernel with kexec-tools into 588 a specially reserved region and then later executed after 589 a crash by kdump/kexec. The crash dump kernel must be compiled 590 to a memory address not used by the main kernel using 591 MEMORY_START. 592 593 For more details see Documentation/kdump/kdump.txt 594 595config KEXEC_JUMP 596 bool "kexec jump (EXPERIMENTAL)" 597 depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL 598 help 599 Jump between original kernel and kexeced kernel and invoke 600 code via KEXEC 601 602config SECCOMP 603 bool "Enable seccomp to safely compute untrusted bytecode" 604 depends on PROC_FS 605 help 606 This kernel feature is useful for number crunching applications 607 that may need to compute untrusted bytecode during their 608 execution. By using pipes or other transports made available to 609 the process as file descriptors supporting the read/write 610 syscalls, it's possible to isolate those applications in 611 their own address space using seccomp. Once seccomp is 612 enabled via prctl, it cannot be disabled and the task is only 613 allowed to execute a few safe syscalls defined by each seccomp 614 mode. 615 616 If unsure, say N. 617 618config SMP 619 bool "Symmetric multi-processing support" 620 depends on SYS_SUPPORTS_SMP 621 select USE_GENERIC_SMP_HELPERS 622 ---help--- 623 This enables support for systems with more than one CPU. If you have 624 a system with only one CPU, like most personal computers, say N. If 625 you have a system with more than one CPU, say Y. 626 627 If you say N here, the kernel will run on single and multiprocessor 628 machines, but will use only one CPU of a multiprocessor machine. If 629 you say Y here, the kernel will run on many, but not all, 630 singleprocessor machines. On a singleprocessor machine, the kernel 631 will run faster if you say N here. 632 633 People using multiprocessor machines who say Y here should also say 634 Y to "Enhanced Real Time Clock Support", below. 635 636 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO 637 available at <http://www.tldp.org/docs.html#howto>. 638 639 If you don't know what to do here, say N. 640 641config NR_CPUS 642 int "Maximum number of CPUs (2-32)" 643 range 2 32 644 depends on SMP 645 default "4" if CPU_SHX3 646 default "2" 647 help 648 This allows you to specify the maximum number of CPUs which this 649 kernel will support. The maximum supported value is 32 and the 650 minimum value which makes sense is 2. 651 652 This is purely to save memory - each supported CPU adds 653 approximately eight kilobytes to the kernel image. 654 655source "kernel/Kconfig.preempt" 656 657config GUSA 658 def_bool y 659 depends on !SMP && SUPERH32 660 help 661 This enables support for gUSA (general UserSpace Atomicity). 662 This is the default implementation for both UP and non-ll/sc 663 CPUs, and is used by the libc, amongst others. 664 665 For additional information, design information can be found 666 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>. 667 668 This should only be disabled for special cases where alternate 669 atomicity implementations exist. 670 671config GUSA_RB 672 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)" 673 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A) 674 help 675 Enabling this option will allow the kernel to implement some 676 atomic operations using a software implementation of load-locked/ 677 store-conditional (LLSC). On machines which do not have hardware 678 LLSC, this should be more efficient than the other alternative of 679 disabling interrupts around the atomic sequence. 680 681endmenu 682 683menu "Boot options" 684 685config ZERO_PAGE_OFFSET 686 hex 687 default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \ 688 SH_7751_SOLUTION_ENGINE 689 default "0x00004000" if PAGE_SIZE_16KB || SH_SH03 690 default "0x00002000" if PAGE_SIZE_8KB 691 default "0x00001000" 692 help 693 This sets the default offset of zero page. 694 695config BOOT_LINK_OFFSET 696 hex 697 default "0x00210000" if SH_SHMIN 698 default "0x00400000" if SH_CAYMAN 699 default "0x00810000" if SH_7780_SOLUTION_ENGINE 700 default "0x009e0000" if SH_TITAN 701 default "0x01800000" if SH_SDK7780 702 default "0x02000000" if SH_EDOSK7760 703 default "0x00800000" 704 help 705 This option allows you to set the link address offset of the zImage. 706 This can be useful if you are on a board which has a small amount of 707 memory. 708 709config ENTRY_OFFSET 710 hex 711 default "0x00001000" if PAGE_SIZE_4KB 712 default "0x00002000" if PAGE_SIZE_8KB 713 default "0x00004000" if PAGE_SIZE_16KB 714 default "0x00010000" if PAGE_SIZE_64KB 715 default "0x00000000" 716 717config UBC_WAKEUP 718 bool "Wakeup UBC on startup" 719 depends on CPU_SH4 && !CPU_SH4A 720 help 721 Selecting this option will wakeup the User Break Controller (UBC) on 722 startup. Although the UBC is left in an awake state when the processor 723 comes up, some boot loaders misbehave by putting the UBC to sleep in a 724 power saving state, which causes issues with things like ptrace(). 725 726 If unsure, say N. 727 728config CMDLINE_BOOL 729 bool "Default bootloader kernel arguments" 730 731config CMDLINE 732 string "Initial kernel command string" 733 depends on CMDLINE_BOOL 734 default "console=ttySC1,115200" 735 736endmenu 737 738menu "Bus options" 739 740config SUPERHYWAY 741 tristate "SuperHyway Bus support" 742 depends on CPU_SUBTYPE_SH4_202 743 744config MAPLE 745 bool "Maple Bus support" 746 depends on SH_DREAMCAST 747 help 748 The Maple Bus is SEGA's serial communication bus for peripherals 749 on the Dreamcast. Without this bus support you won't be able to 750 get your Dreamcast keyboard etc to work, so most users 751 probably want to say 'Y' here, unless you are only using the 752 Dreamcast with a serial line terminal or a remote network 753 connection. 754 755source "arch/sh/drivers/pci/Kconfig" 756 757source "drivers/pci/pcie/Kconfig" 758 759source "drivers/pci/Kconfig" 760 761source "drivers/pcmcia/Kconfig" 762 763source "drivers/pci/hotplug/Kconfig" 764 765endmenu 766 767menu "Executable file formats" 768 769source "fs/Kconfig.binfmt" 770 771endmenu 772 773menu "Power management options (EXPERIMENTAL)" 774depends on EXPERIMENTAL 775 776source "kernel/power/Kconfig" 777 778source "drivers/cpuidle/Kconfig" 779 780endmenu 781 782source "net/Kconfig" 783 784source "drivers/Kconfig" 785 786source "fs/Kconfig" 787 788source "arch/sh/Kconfig.debug" 789 790source "security/Kconfig" 791 792source "crypto/Kconfig" 793 794source "lib/Kconfig" 795