1# For a description of the syntax of this configuration file, 2# see Documentation/kbuild/kconfig-language.txt. 3# 4 5mainmenu "Linux/PowerPC Kernel Configuration" 6 7config PPC64 8 bool "64-bit kernel" 9 default n 10 help 11 This option selects whether a 32-bit or a 64-bit kernel 12 will be built. 13 14config PPC32 15 bool 16 default y if !PPC64 17 18config 64BIT 19 bool 20 default y if PPC64 21 22config PPC_MERGE 23 def_bool y 24 25config MMU 26 bool 27 default y 28 29config GENERIC_HARDIRQS 30 bool 31 default y 32 33config RWSEM_GENERIC_SPINLOCK 34 bool 35 36config RWSEM_XCHGADD_ALGORITHM 37 bool 38 default y 39 40config GENERIC_HWEIGHT 41 bool 42 default y 43 44config GENERIC_CALIBRATE_DELAY 45 bool 46 default y 47 48config PPC 49 bool 50 default y 51 52config EARLY_PRINTK 53 bool 54 default y 55 56config COMPAT 57 bool 58 default y if PPC64 59 60config SYSVIPC_COMPAT 61 bool 62 depends on COMPAT && SYSVIPC 63 default y 64 65# All PPC32s use generic nvram driver through ppc_md 66config GENERIC_NVRAM 67 bool 68 default y if PPC32 69 70config SCHED_NO_NO_OMIT_FRAME_POINTER 71 bool 72 default y 73 74config ARCH_MAY_HAVE_PC_FDC 75 bool 76 default y 77 78config PPC_OF 79 def_bool y 80 81config PPC_UDBG_16550 82 bool 83 default n 84 85config GENERIC_TBSYNC 86 bool 87 default y if PPC32 && SMP 88 default n 89 90config DEFAULT_UIMAGE 91 bool 92 help 93 Used to allow a board to specify it wants a uImage built by default 94 default n 95 96menu "Processor support" 97choice 98 prompt "Processor Type" 99 depends on PPC32 100 default 6xx 101 102config CLASSIC32 103 bool "6xx/7xx/74xx" 104 select PPC_FPU 105 select 6xx 106 help 107 There are four families of PowerPC chips supported. The more common 108 types (601, 603, 604, 740, 750, 7400), the Motorola embedded 109 versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC 110 embedded versions (403 and 405) and the high end 64 bit Power 111 processors (POWER 3, POWER4, and IBM PPC970 also known as G5). 112 113 Unless you are building a kernel for one of the embedded processor 114 systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx. 115 Note that the kernel runs in 32-bit mode even on 64-bit chips. 116 117config PPC_52xx 118 bool "Freescale 52xx" 119 select 6xx 120 select PPC_FPU 121 122config PPC_82xx 123 bool "Freescale 82xx" 124 select 6xx 125 select PPC_FPU 126 127config PPC_83xx 128 bool "Freescale 83xx" 129 select 6xx 130 select FSL_SOC 131 select 83xx 132 select PPC_FPU 133 134config PPC_85xx 135 bool "Freescale 85xx" 136 select E500 137 select FSL_SOC 138 select 85xx 139 140config 40x 141 bool "AMCC 40x" 142 143config 44x 144 bool "AMCC 44x" 145 146config 8xx 147 bool "Freescale 8xx" 148 149config E200 150 bool "Freescale e200" 151 152endchoice 153 154config POWER4_ONLY 155 bool "Optimize for POWER4" 156 depends on PPC64 157 default n 158 ---help--- 159 Cause the compiler to optimize for POWER4/POWER5/PPC970 processors. 160 The resulting binary will not work on POWER3 or RS64 processors 161 when compiled with binutils 2.15 or later. 162 163config POWER3 164 bool 165 depends on PPC64 166 default y if !POWER4_ONLY 167 168config POWER4 169 depends on PPC64 170 def_bool y 171 172config 6xx 173 bool 174 175# this is temp to handle compat with arch=ppc 176config 83xx 177 bool 178 179# this is temp to handle compat with arch=ppc 180config 85xx 181 bool 182 183config E500 184 bool 185 186config PPC_FPU 187 bool 188 default y if PPC64 189 190config BOOKE 191 bool 192 depends on E200 || E500 193 default y 194 195config FSL_BOOKE 196 bool 197 depends on E200 || E500 198 default y 199 200config PTE_64BIT 201 bool 202 depends on 44x || E500 203 default y if 44x 204 default y if E500 && PHYS_64BIT 205 206config PHYS_64BIT 207 bool 'Large physical address support' if E500 208 depends on 44x || E500 209 default y if 44x 210 ---help--- 211 This option enables kernel support for larger than 32-bit physical 212 addresses. This features is not be available on all e500 cores. 213 214 If in doubt, say N here. 215 216config ALTIVEC 217 bool "AltiVec Support" 218 depends on CLASSIC32 || POWER4 219 ---help--- 220 This option enables kernel support for the Altivec extensions to the 221 PowerPC processor. The kernel currently supports saving and restoring 222 altivec registers, and turning on the 'altivec enable' bit so user 223 processes can execute altivec instructions. 224 225 This option is only usefully if you have a processor that supports 226 altivec (G4, otherwise known as 74xx series), but does not have 227 any affect on a non-altivec cpu (it does, however add code to the 228 kernel). 229 230 If in doubt, say Y here. 231 232config SPE 233 bool "SPE Support" 234 depends on E200 || E500 235 default y 236 ---help--- 237 This option enables kernel support for the Signal Processing 238 Extensions (SPE) to the PowerPC processor. The kernel currently 239 supports saving and restoring SPE registers, and turning on the 240 'spe enable' bit so user processes can execute SPE instructions. 241 242 This option is only useful if you have a processor that supports 243 SPE (e500, otherwise known as 85xx series), but does not have any 244 effect on a non-spe cpu (it does, however add code to the kernel). 245 246 If in doubt, say Y here. 247 248config PPC_STD_MMU 249 bool 250 depends on 6xx || POWER3 || POWER4 || PPC64 251 default y 252 253config PPC_STD_MMU_32 254 def_bool y 255 depends on PPC_STD_MMU && PPC32 256 257config VIRT_CPU_ACCOUNTING 258 bool "Deterministic task and CPU time accounting" 259 depends on PPC64 260 default y 261 help 262 Select this option to enable more accurate task and CPU time 263 accounting. This is done by reading a CPU counter on each 264 kernel entry and exit and on transitions within the kernel 265 between system, softirq and hardirq state, so there is a 266 small performance impact. This also enables accounting of 267 stolen time on logically-partitioned systems running on 268 IBM POWER5-based machines. 269 270 If in doubt, say Y here. 271 272config SMP 273 depends on PPC_STD_MMU 274 bool "Symmetric multi-processing support" 275 ---help--- 276 This enables support for systems with more than one CPU. If you have 277 a system with only one CPU, say N. If you have a system with more 278 than one CPU, say Y. Note that the kernel does not currently 279 support SMP machines with 603/603e/603ev or PPC750 ("G3") processors 280 since they have inadequate hardware support for multiprocessor 281 operation. 282 283 If you say N here, the kernel will run on single and multiprocessor 284 machines, but will use only one CPU of a multiprocessor machine. If 285 you say Y here, the kernel will run on single-processor machines. 286 On a single-processor machine, the kernel will run faster if you say 287 N here. 288 289 If you don't know what to do here, say N. 290 291config NR_CPUS 292 int "Maximum number of CPUs (2-128)" 293 range 2 128 294 depends on SMP 295 default "32" if PPC64 296 default "4" 297 298config NOT_COHERENT_CACHE 299 bool 300 depends on 4xx || 8xx || E200 301 default y 302endmenu 303 304source "init/Kconfig" 305 306menu "Platform support" 307 depends on PPC64 || CLASSIC32 308 309choice 310 prompt "Machine type" 311 default PPC_MULTIPLATFORM 312 313config PPC_MULTIPLATFORM 314 bool "Generic desktop/server/laptop" 315 help 316 Select this option if configuring for an IBM pSeries or 317 RS/6000 machine, an Apple machine, or a PReP, CHRP, 318 Maple or Cell-based machine. 319 320config PPC_ISERIES 321 bool "IBM Legacy iSeries" 322 depends on PPC64 323 324config EMBEDDED6xx 325 bool "Embedded 6xx/7xx/7xxx-based board" 326 depends on PPC32 && BROKEN 327 328config APUS 329 bool "Amiga-APUS" 330 depends on PPC32 && BROKEN 331 help 332 Select APUS if configuring for a PowerUP Amiga. 333 More information is available at: 334 <http://linux-apus.sourceforge.net/>. 335endchoice 336 337config PPC_PSERIES 338 depends on PPC_MULTIPLATFORM && PPC64 339 bool " IBM pSeries & new (POWER5-based) iSeries" 340 select PPC_I8259 341 select PPC_RTAS 342 select RTAS_ERROR_LOGGING 343 select PPC_UDBG_16550 344 default y 345 346config PPC_CHRP 347 bool " Common Hardware Reference Platform (CHRP) based machines" 348 depends on PPC_MULTIPLATFORM && PPC32 349 select PPC_I8259 350 select PPC_INDIRECT_PCI 351 select PPC_RTAS 352 select PPC_MPC106 353 select PPC_UDBG_16550 354 default y 355 356config PPC_PMAC 357 bool " Apple PowerMac based machines" 358 depends on PPC_MULTIPLATFORM 359 select PPC_INDIRECT_PCI if PPC32 360 select PPC_MPC106 if PPC32 361 default y 362 363config PPC_PMAC64 364 bool 365 depends on PPC_PMAC && POWER4 366 select U3_DART 367 select MPIC_BROKEN_U3 368 select GENERIC_TBSYNC 369 select PPC_970_NAP 370 default y 371 372config PPC_PREP 373 bool " PowerPC Reference Platform (PReP) based machines" 374 depends on PPC_MULTIPLATFORM && PPC32 && BROKEN 375 select PPC_I8259 376 select PPC_INDIRECT_PCI 377 select PPC_UDBG_16550 378 default y 379 380config PPC_MAPLE 381 depends on PPC_MULTIPLATFORM && PPC64 382 bool " Maple 970FX Evaluation Board" 383 select U3_DART 384 select MPIC_BROKEN_U3 385 select GENERIC_TBSYNC 386 select PPC_UDBG_16550 387 select PPC_970_NAP 388 default n 389 help 390 This option enables support for the Maple 970FX Evaluation Board. 391 For more informations, refer to <http://www.970eval.com> 392 393config PPC_CELL 394 bool " Cell Broadband Processor Architecture" 395 depends on PPC_MULTIPLATFORM && PPC64 396 select PPC_RTAS 397 select MMIO_NVRAM 398 select PPC_UDBG_16550 399 400config XICS 401 depends on PPC_PSERIES 402 bool 403 default y 404 405config U3_DART 406 bool 407 depends on PPC_MULTIPLATFORM && PPC64 408 default n 409 410config MPIC 411 depends on PPC_PSERIES || PPC_PMAC || PPC_MAPLE || PPC_CHRP 412 bool 413 default y 414 415config PPC_RTAS 416 bool 417 default n 418 419config RTAS_ERROR_LOGGING 420 bool 421 depends on PPC_RTAS 422 default n 423 424config RTAS_PROC 425 bool "Proc interface to RTAS" 426 depends on PPC_RTAS 427 default y 428 429config RTAS_FLASH 430 tristate "Firmware flash interface" 431 depends on PPC64 && RTAS_PROC 432 433config MMIO_NVRAM 434 bool 435 default n 436 437config MPIC_BROKEN_U3 438 bool 439 depends on PPC_MAPLE 440 default y 441 442config CELL_IIC 443 depends on PPC_CELL 444 bool 445 default y 446 447config IBMVIO 448 depends on PPC_PSERIES || PPC_ISERIES 449 bool 450 default y 451 452config IBMEBUS 453 depends on PPC_PSERIES 454 bool "Support for GX bus based adapters" 455 help 456 Bus device driver for GX bus based adapters. 457 458config PPC_MPC106 459 bool 460 default n 461 462config PPC_970_NAP 463 bool 464 default n 465 466source "drivers/cpufreq/Kconfig" 467 468config CPU_FREQ_PMAC 469 bool "Support for Apple PowerBooks" 470 depends on CPU_FREQ && ADB_PMU && PPC32 471 select CPU_FREQ_TABLE 472 help 473 This adds support for frequency switching on Apple PowerBooks, 474 this currently includes some models of iBook & Titanium 475 PowerBook. 476 477config CPU_FREQ_PMAC64 478 bool "Support for some Apple G5s" 479 depends on CPU_FREQ && PMAC_SMU && PPC64 480 select CPU_FREQ_TABLE 481 help 482 This adds support for frequency switching on Apple iMac G5, 483 and some of the more recent desktop G5 machines as well. 484 485config PPC601_SYNC_FIX 486 bool "Workarounds for PPC601 bugs" 487 depends on 6xx && (PPC_PREP || PPC_PMAC) 488 help 489 Some versions of the PPC601 (the first PowerPC chip) have bugs which 490 mean that extra synchronization instructions are required near 491 certain instructions, typically those that make major changes to the 492 CPU state. These extra instructions reduce performance slightly. 493 If you say N here, these extra instructions will not be included, 494 resulting in a kernel which will run faster but may not run at all 495 on some systems with the PPC601 chip. 496 497 If in doubt, say Y here. 498 499config TAU 500 bool "On-chip CPU temperature sensor support" 501 depends on 6xx 502 help 503 G3 and G4 processors have an on-chip temperature sensor called the 504 'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die 505 temperature within 2-4 degrees Celsius. This option shows the current 506 on-die temperature in /proc/cpuinfo if the cpu supports it. 507 508 Unfortunately, on some chip revisions, this sensor is very inaccurate 509 and in many cases, does not work at all, so don't assume the cpu 510 temp is actually what /proc/cpuinfo says it is. 511 512config TAU_INT 513 bool "Interrupt driven TAU driver (DANGEROUS)" 514 depends on TAU 515 ---help--- 516 The TAU supports an interrupt driven mode which causes an interrupt 517 whenever the temperature goes out of range. This is the fastest way 518 to get notified the temp has exceeded a range. With this option off, 519 a timer is used to re-check the temperature periodically. 520 521 However, on some cpus it appears that the TAU interrupt hardware 522 is buggy and can cause a situation which would lead unexplained hard 523 lockups. 524 525 Unless you are extending the TAU driver, or enjoy kernel/hardware 526 debugging, leave this option off. 527 528config TAU_AVERAGE 529 bool "Average high and low temp" 530 depends on TAU 531 ---help--- 532 The TAU hardware can compare the temperature to an upper and lower 533 bound. The default behavior is to show both the upper and lower 534 bound in /proc/cpuinfo. If the range is large, the temperature is 535 either changing a lot, or the TAU hardware is broken (likely on some 536 G4's). If the range is small (around 4 degrees), the temperature is 537 relatively stable. If you say Y here, a single temperature value, 538 halfway between the upper and lower bounds, will be reported in 539 /proc/cpuinfo. 540 541 If in doubt, say N here. 542endmenu 543 544source arch/powerpc/platforms/embedded6xx/Kconfig 545source arch/powerpc/platforms/4xx/Kconfig 546source arch/powerpc/platforms/83xx/Kconfig 547source arch/powerpc/platforms/85xx/Kconfig 548source arch/powerpc/platforms/8xx/Kconfig 549source arch/powerpc/platforms/cell/Kconfig 550 551menu "Kernel options" 552 553config HIGHMEM 554 bool "High memory support" 555 depends on PPC32 556 557source kernel/Kconfig.hz 558source kernel/Kconfig.preempt 559source "fs/Kconfig.binfmt" 560 561# We optimistically allocate largepages from the VM, so make the limit 562# large enough (16MB). This badly named config option is actually 563# max order + 1 564config FORCE_MAX_ZONEORDER 565 int 566 depends on PPC64 567 default "9" if PPC_64K_PAGES 568 default "13" 569 570config MATH_EMULATION 571 bool "Math emulation" 572 depends on 4xx || 8xx || E200 || E500 573 ---help--- 574 Some PowerPC chips designed for embedded applications do not have 575 a floating-point unit and therefore do not implement the 576 floating-point instructions in the PowerPC instruction set. If you 577 say Y here, the kernel will include code to emulate a floating-point 578 unit, which will allow programs that use floating-point 579 instructions to run. 580 581config IOMMU_VMERGE 582 bool "Enable IOMMU virtual merging (EXPERIMENTAL)" 583 depends on EXPERIMENTAL && PPC64 584 default n 585 help 586 Cause IO segments sent to a device for DMA to be merged virtually 587 by the IOMMU when they happen to have been allocated contiguously. 588 This doesn't add pressure to the IOMMU allocator. However, some 589 drivers don't support getting large merged segments coming back 590 from *_map_sg(). Say Y if you know the drivers you are using are 591 properly handling this case. 592 593config HOTPLUG_CPU 594 bool "Support for enabling/disabling CPUs" 595 depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC) 596 ---help--- 597 Say Y here to be able to disable and re-enable individual 598 CPUs at runtime on SMP machines. 599 600 Say N if you are unsure. 601 602config KEXEC 603 bool "kexec system call (EXPERIMENTAL)" 604 depends on PPC_MULTIPLATFORM && EXPERIMENTAL 605 help 606 kexec is a system call that implements the ability to shutdown your 607 current kernel, and to start another kernel. It is like a reboot 608 but it is indepedent of the system firmware. And like a reboot 609 you can start any kernel with it, not just Linux. 610 611 The name comes from the similiarity to the exec system call. 612 613 It is an ongoing process to be certain the hardware in a machine 614 is properly shutdown, so do not be surprised if this code does not 615 initially work for you. It may help to enable device hotplugging 616 support. As of this writing the exact hardware interface is 617 strongly in flux, so no good recommendation can be made. 618 619config CRASH_DUMP 620 bool "Build a kdump crash kernel (EXPERIMENTAL)" 621 depends on PPC_MULTIPLATFORM && PPC64 && EXPERIMENTAL 622 help 623 Build a kernel suitable for use as a kdump capture kernel. 624 The kernel will be linked at a different address than normal, and 625 so can only be used for Kdump. 626 627 Don't change this unless you know what you are doing. 628 629config EMBEDDEDBOOT 630 bool 631 depends on 8xx || 8260 632 default y 633 634config PC_KEYBOARD 635 bool "PC PS/2 style Keyboard" 636 depends on 4xx || CPM2 637 638config PPCBUG_NVRAM 639 bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC 640 default y if PPC_PREP 641 642config IRQ_ALL_CPUS 643 bool "Distribute interrupts on all CPUs by default" 644 depends on SMP && !MV64360 645 help 646 This option gives the kernel permission to distribute IRQs across 647 multiple CPUs. Saying N here will route all IRQs to the first 648 CPU. Generally saying Y is safe, although some problems have been 649 reported with SMP Power Macintoshes with this option enabled. 650 651source "arch/powerpc/platforms/pseries/Kconfig" 652 653config NUMA 654 bool "NUMA support" 655 depends on PPC64 656 default y if SMP && PPC_PSERIES 657 658config NODES_SHIFT 659 int 660 default "4" 661 depends on NEED_MULTIPLE_NODES 662 663config ARCH_SELECT_MEMORY_MODEL 664 def_bool y 665 depends on PPC64 666 667config ARCH_FLATMEM_ENABLE 668 def_bool y 669 depends on (PPC64 && !NUMA) || PPC32 670 671config ARCH_SPARSEMEM_ENABLE 672 def_bool y 673 depends on PPC64 674 675config ARCH_SPARSEMEM_DEFAULT 676 def_bool y 677 depends on SMP && PPC_PSERIES 678 679source "mm/Kconfig" 680 681config HAVE_ARCH_EARLY_PFN_TO_NID 682 def_bool y 683 depends on NEED_MULTIPLE_NODES 684 685config ARCH_MEMORY_PROBE 686 def_bool y 687 depends on MEMORY_HOTPLUG 688 689config PPC_64K_PAGES 690 bool "64k page size" 691 depends on PPC64 692 help 693 This option changes the kernel logical page size to 64k. On machines 694 without processor support for 64k pages, the kernel will simulate 695 them by loading each individual 4k page on demand transparently, 696 while on hardware with such support, it will be used to map 697 normal application pages. 698 699config SCHED_SMT 700 bool "SMT (Hyperthreading) scheduler support" 701 depends on PPC64 && SMP 702 default off 703 help 704 SMT scheduler support improves the CPU scheduler's decision making 705 when dealing with POWER5 cpus at a cost of slightly increased 706 overhead in some places. If unsure say N here. 707 708config PROC_DEVICETREE 709 bool "Support for device tree in /proc" 710 depends on PROC_FS 711 help 712 This option adds a device-tree directory under /proc which contains 713 an image of the device tree that the kernel copies from Open 714 Firmware or other boot firmware. If unsure, say Y here. 715 716source "arch/powerpc/platforms/prep/Kconfig" 717 718config CMDLINE_BOOL 719 bool "Default bootloader kernel arguments" 720 depends on !PPC_ISERIES 721 722config CMDLINE 723 string "Initial kernel command string" 724 depends on CMDLINE_BOOL 725 default "console=ttyS0,9600 console=tty0 root=/dev/sda2" 726 help 727 On some platforms, there is currently no way for the boot loader to 728 pass arguments to the kernel. For these platforms, you can supply 729 some command-line options at build time by entering them here. In 730 most cases you will need to specify the root device here. 731 732if !44x || BROKEN 733source kernel/power/Kconfig 734endif 735 736config SECCOMP 737 bool "Enable seccomp to safely compute untrusted bytecode" 738 depends on PROC_FS 739 default y 740 help 741 This kernel feature is useful for number crunching applications 742 that may need to compute untrusted bytecode during their 743 execution. By using pipes or other transports made available to 744 the process as file descriptors supporting the read/write 745 syscalls, it's possible to isolate those applications in 746 their own address space using seccomp. Once seccomp is 747 enabled via /proc/<pid>/seccomp, it cannot be disabled 748 and the task is only allowed to execute a few safe syscalls 749 defined by each seccomp mode. 750 751 If unsure, say Y. Only embedded should say N here. 752 753endmenu 754 755config ISA_DMA_API 756 bool 757 default y 758 759menu "Bus options" 760 761config ISA 762 bool "Support for ISA-bus hardware" 763 depends on PPC_PREP || PPC_CHRP 764 select PPC_I8259 765 help 766 Find out whether you have ISA slots on your motherboard. ISA is the 767 name of a bus system, i.e. the way the CPU talks to the other stuff 768 inside your box. If you have an Apple machine, say N here; if you 769 have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If 770 you have an embedded board, consult your board documentation. 771 772config GENERIC_ISA_DMA 773 bool 774 depends on PPC64 || POWER4 || 6xx && !CPM2 775 default y 776 777config PPC_I8259 778 bool 779 default n 780 781config PPC_INDIRECT_PCI 782 bool 783 depends on PCI 784 default y if 40x || 44x 785 default n 786 787config EISA 788 bool 789 790config SBUS 791 bool 792 793config FSL_SOC 794 bool 795 796# Yes MCA RS/6000s exist but Linux-PPC does not currently support any 797config MCA 798 bool 799 800config PCI 801 bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES) 802 default y if !40x && !CPM2 && !8xx && !APUS && !PPC_83xx && !PPC_85xx 803 default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS 804 default PCI_QSPAN if !4xx && !CPM2 && 8xx 805 help 806 Find out whether your system includes a PCI bus. PCI is the name of 807 a bus system, i.e. the way the CPU talks to the other stuff inside 808 your box. If you say Y here, the kernel will include drivers and 809 infrastructure code to support PCI bus devices. 810 811config PCI_DOMAINS 812 bool 813 default PCI 814 815config PCI_QSPAN 816 bool "QSpan PCI" 817 depends on !4xx && !CPM2 && 8xx 818 select PPC_I8259 819 help 820 Say Y here if you have a system based on a Motorola 8xx-series 821 embedded processor with a QSPAN PCI interface, otherwise say N. 822 823config PCI_8260 824 bool 825 depends on PCI && 8260 826 select PPC_INDIRECT_PCI 827 default y 828 829config 8260_PCI9 830 bool " Enable workaround for MPC826x erratum PCI 9" 831 depends on PCI_8260 && !ADS8272 832 default y 833 834choice 835 prompt " IDMA channel for PCI 9 workaround" 836 depends on 8260_PCI9 837 838config 8260_PCI9_IDMA1 839 bool "IDMA1" 840 841config 8260_PCI9_IDMA2 842 bool "IDMA2" 843 844config 8260_PCI9_IDMA3 845 bool "IDMA3" 846 847config 8260_PCI9_IDMA4 848 bool "IDMA4" 849 850endchoice 851 852source "drivers/pci/Kconfig" 853 854source "drivers/pcmcia/Kconfig" 855 856source "drivers/pci/hotplug/Kconfig" 857 858endmenu 859 860menu "Advanced setup" 861 depends on PPC32 862 863config ADVANCED_OPTIONS 864 bool "Prompt for advanced kernel configuration options" 865 help 866 This option will enable prompting for a variety of advanced kernel 867 configuration options. These options can cause the kernel to not 868 work if they are set incorrectly, but can be used to optimize certain 869 aspects of kernel memory management. 870 871 Unless you know what you are doing, say N here. 872 873comment "Default settings for advanced configuration options are used" 874 depends on !ADVANCED_OPTIONS 875 876config HIGHMEM_START_BOOL 877 bool "Set high memory pool address" 878 depends on ADVANCED_OPTIONS && HIGHMEM 879 help 880 This option allows you to set the base address of the kernel virtual 881 area used to map high memory pages. This can be useful in 882 optimizing the layout of kernel virtual memory. 883 884 Say N here unless you know what you are doing. 885 886config HIGHMEM_START 887 hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL 888 default "0xfe000000" 889 890config LOWMEM_SIZE_BOOL 891 bool "Set maximum low memory" 892 depends on ADVANCED_OPTIONS 893 help 894 This option allows you to set the maximum amount of memory which 895 will be used as "low memory", that is, memory which the kernel can 896 access directly, without having to set up a kernel virtual mapping. 897 This can be useful in optimizing the layout of kernel virtual 898 memory. 899 900 Say N here unless you know what you are doing. 901 902config LOWMEM_SIZE 903 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL 904 default "0x30000000" 905 906config KERNEL_START_BOOL 907 bool "Set custom kernel base address" 908 depends on ADVANCED_OPTIONS 909 help 910 This option allows you to set the kernel virtual address at which 911 the kernel will map low memory (the kernel image will be linked at 912 this address). This can be useful in optimizing the virtual memory 913 layout of the system. 914 915 Say N here unless you know what you are doing. 916 917config KERNEL_START 918 hex "Virtual address of kernel base" if KERNEL_START_BOOL 919 default "0xc0000000" 920 921config TASK_SIZE_BOOL 922 bool "Set custom user task size" 923 depends on ADVANCED_OPTIONS 924 help 925 This option allows you to set the amount of virtual address space 926 allocated to user tasks. This can be useful in optimizing the 927 virtual memory layout of the system. 928 929 Say N here unless you know what you are doing. 930 931config TASK_SIZE 932 hex "Size of user task space" if TASK_SIZE_BOOL 933 default "0x80000000" 934 935config CONSISTENT_START_BOOL 936 bool "Set custom consistent memory pool address" 937 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE 938 help 939 This option allows you to set the base virtual address 940 of the the consistent memory pool. This pool of virtual 941 memory is used to make consistent memory allocations. 942 943config CONSISTENT_START 944 hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL 945 default "0xff100000" if NOT_COHERENT_CACHE 946 947config CONSISTENT_SIZE_BOOL 948 bool "Set custom consistent memory pool size" 949 depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE 950 help 951 This option allows you to set the size of the the 952 consistent memory pool. This pool of virtual memory 953 is used to make consistent memory allocations. 954 955config CONSISTENT_SIZE 956 hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL 957 default "0x00200000" if NOT_COHERENT_CACHE 958 959config BOOT_LOAD_BOOL 960 bool "Set the boot link/load address" 961 depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM 962 help 963 This option allows you to set the initial load address of the zImage 964 or zImage.initrd file. This can be useful if you are on a board 965 which has a small amount of memory. 966 967 Say N here unless you know what you are doing. 968 969config BOOT_LOAD 970 hex "Link/load address for booting" if BOOT_LOAD_BOOL 971 default "0x00400000" if 40x || 8xx || 8260 972 default "0x01000000" if 44x 973 default "0x00800000" 974 975config PIN_TLB 976 bool "Pinned Kernel TLBs (860 ONLY)" 977 depends on ADVANCED_OPTIONS && 8xx 978endmenu 979 980if PPC64 981config KERNEL_START 982 hex 983 default "0xc000000000000000" 984endif 985 986source "net/Kconfig" 987 988source "drivers/Kconfig" 989 990source "fs/Kconfig" 991 992# XXX source "arch/ppc/8xx_io/Kconfig" 993 994# XXX source "arch/ppc/8260_io/Kconfig" 995 996source "arch/powerpc/platforms/iseries/Kconfig" 997 998source "lib/Kconfig" 999 1000menu "Instrumentation Support" 1001 depends on EXPERIMENTAL 1002 1003source "arch/powerpc/oprofile/Kconfig" 1004 1005config KPROBES 1006 bool "Kprobes (EXPERIMENTAL)" 1007 depends on PPC64 && EXPERIMENTAL && MODULES 1008 help 1009 Kprobes allows you to trap at almost any kernel address and 1010 execute a callback function. register_kprobe() establishes 1011 a probepoint and specifies the callback. Kprobes is useful 1012 for kernel debugging, non-intrusive instrumentation and testing. 1013 If in doubt, say "N". 1014endmenu 1015 1016source "arch/powerpc/Kconfig.debug" 1017 1018source "security/Kconfig" 1019 1020config KEYS_COMPAT 1021 bool 1022 depends on COMPAT && KEYS 1023 default y 1024 1025source "crypto/Kconfig" 1026