| Kconfig (4cbffc461ec91287c4cb1d0e27b01b988d0b8fba) | Kconfig (c434b9f80b0923e6460031b0fd964f8b0bf3c6a6) |
|---|---|
| 1# SPDX-License-Identifier: GPL-2.0 2config MIPS 3 bool 4 default y 5 select ARCH_32BIT_OFF_T if !64BIT 6 select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT 7 select ARCH_HAS_FORTIFY_SOURCE 8 select ARCH_HAS_KCOV --- 79 unchanged lines hidden (view full) --- 88 select PERF_USE_VMALLOC 89 select RTC_LIB 90 select SYSCTL_EXCEPTION_TRACE 91 select VIRT_TO_BUS 92 93config MIPS_FIXUP_BIGPHYS_ADDR 94 bool 95 | 1# SPDX-License-Identifier: GPL-2.0 2config MIPS 3 bool 4 default y 5 select ARCH_32BIT_OFF_T if !64BIT 6 select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT 7 select ARCH_HAS_FORTIFY_SOURCE 8 select ARCH_HAS_KCOV --- 79 unchanged lines hidden (view full) --- 88 select PERF_USE_VMALLOC 89 select RTC_LIB 90 select SYSCTL_EXCEPTION_TRACE 91 select VIRT_TO_BUS 92 93config MIPS_FIXUP_BIGPHYS_ADDR 94 bool 95 |
| 96config MIPS_GENERIC 97 bool 98 |
|
| 96menu "Machine selection" 97 98choice 99 prompt "System type" | 99menu "Machine selection" 100 101choice 102 prompt "System type" |
| 100 default MIPS_GENERIC | 103 default MIPS_GENERIC_KERNEL |
| 101 | 104 |
| 102config MIPS_GENERIC | 105config MIPS_GENERIC_KERNEL |
| 103 bool "Generic board-agnostic MIPS kernel" | 106 bool "Generic board-agnostic MIPS kernel" |
| 107 select MIPS_GENERIC |
|
| 104 select BOOT_RAW 105 select BUILTIN_DTB 106 select CEVT_R4K 107 select CLKSRC_MIPS_GIC 108 select COMMON_CLK 109 select CPU_MIPSR2_IRQ_EI 110 select CPU_MIPSR2_IRQ_VI 111 select CSRC_R4K --- 451 unchanged lines hidden (view full) --- 563 select SYS_SUPPORTS_MIPS_CMP 564 select SYS_SUPPORTS_MIPS_CPS 565 select SYS_SUPPORTS_MULTITHREADING 566 select SYS_SUPPORTS_RELOCATABLE 567 select SYS_SUPPORTS_SMARTMIPS 568 select SYS_SUPPORTS_VPE_LOADER 569 select SYS_SUPPORTS_ZBOOT 570 select USE_OF | 108 select BOOT_RAW 109 select BUILTIN_DTB 110 select CEVT_R4K 111 select CLKSRC_MIPS_GIC 112 select COMMON_CLK 113 select CPU_MIPSR2_IRQ_EI 114 select CPU_MIPSR2_IRQ_VI 115 select CSRC_R4K --- 451 unchanged lines hidden (view full) --- 567 select SYS_SUPPORTS_MIPS_CMP 568 select SYS_SUPPORTS_MIPS_CPS 569 select SYS_SUPPORTS_MULTITHREADING 570 select SYS_SUPPORTS_RELOCATABLE 571 select SYS_SUPPORTS_SMARTMIPS 572 select SYS_SUPPORTS_VPE_LOADER 573 select SYS_SUPPORTS_ZBOOT 574 select USE_OF |
| 575 select WAR_ICACHE_REFILLS |
|
| 571 select ZONE_DMA32 if 64BIT 572 help 573 This enables support for the MIPS Technologies Malta evaluation 574 board. 575 576config MACH_PIC32 577 bool "Microchip PIC32 Family" 578 help --- 5 unchanged lines hidden (view full) --- 584config MACH_VR41XX 585 bool "NEC VR4100 series based machines" 586 select CEVT_R4K 587 select CSRC_R4K 588 select SYS_HAS_CPU_VR41XX 589 select SYS_SUPPORTS_MIPS16 590 select GPIOLIB 591 | 576 select ZONE_DMA32 if 64BIT 577 help 578 This enables support for the MIPS Technologies Malta evaluation 579 board. 580 581config MACH_PIC32 582 bool "Microchip PIC32 Family" 583 help --- 5 unchanged lines hidden (view full) --- 589config MACH_VR41XX 590 bool "NEC VR4100 series based machines" 591 select CEVT_R4K 592 select CSRC_R4K 593 select SYS_HAS_CPU_VR41XX 594 select SYS_SUPPORTS_MIPS16 595 select GPIOLIB 596 |
| 592config NXP_STB220 593 bool "NXP STB220 board" 594 select SOC_PNX833X 595 help 596 Support for NXP Semiconductors STB220 Development Board. 597 598config NXP_STB225 599 bool "NXP 225 board" 600 select SOC_PNX833X 601 select SOC_PNX8335 602 help 603 Support for NXP Semiconductors STB225 Development Board. 604 | |
| 605config RALINK 606 bool "Ralink based machines" 607 select CEVT_R4K 608 select CSRC_R4K 609 select BOOT_RAW 610 select DMA_NONCOHERENT 611 select IRQ_MIPS_CPU 612 select USE_OF --- 33 unchanged lines hidden (view full) --- 646 select SGI_HAS_ZILOG 647 select SWAP_IO_SPACE 648 select SYS_HAS_CPU_R4X00 649 select SYS_HAS_CPU_R5000 650 select SYS_HAS_EARLY_PRINTK 651 select SYS_SUPPORTS_32BIT_KERNEL 652 select SYS_SUPPORTS_64BIT_KERNEL 653 select SYS_SUPPORTS_BIG_ENDIAN | 597config RALINK 598 bool "Ralink based machines" 599 select CEVT_R4K 600 select CSRC_R4K 601 select BOOT_RAW 602 select DMA_NONCOHERENT 603 select IRQ_MIPS_CPU 604 select USE_OF --- 33 unchanged lines hidden (view full) --- 638 select SGI_HAS_ZILOG 639 select SWAP_IO_SPACE 640 select SYS_HAS_CPU_R4X00 641 select SYS_HAS_CPU_R5000 642 select SYS_HAS_EARLY_PRINTK 643 select SYS_SUPPORTS_32BIT_KERNEL 644 select SYS_SUPPORTS_64BIT_KERNEL 645 select SYS_SUPPORTS_BIG_ENDIAN |
| 646 select WAR_R4600_V1_INDEX_ICACHEOP 647 select WAR_R4600_V1_HIT_CACHEOP 648 select WAR_R4600_V2_HIT_CACHEOP |
|
| 654 select MIPS_L1_CACHE_SHIFT_7 655 help 656 This are the SGI Indy, Challenge S and Indigo2, as well as certain 657 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 658 that runs on these, say Y here. 659 660config SGI_IP27 661 bool "SGI IP27 (Origin200/2000)" --- 11 unchanged lines hidden (view full) --- 673 select NR_CPUS_DEFAULT_64 674 select PCI_DRIVERS_GENERIC 675 select PCI_XTALK_BRIDGE 676 select SYS_HAS_CPU_R10000 677 select SYS_SUPPORTS_64BIT_KERNEL 678 select SYS_SUPPORTS_BIG_ENDIAN 679 select SYS_SUPPORTS_NUMA 680 select SYS_SUPPORTS_SMP | 649 select MIPS_L1_CACHE_SHIFT_7 650 help 651 This are the SGI Indy, Challenge S and Indigo2, as well as certain 652 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 653 that runs on these, say Y here. 654 655config SGI_IP27 656 bool "SGI IP27 (Origin200/2000)" --- 11 unchanged lines hidden (view full) --- 668 select NR_CPUS_DEFAULT_64 669 select PCI_DRIVERS_GENERIC 670 select PCI_XTALK_BRIDGE 671 select SYS_HAS_CPU_R10000 672 select SYS_SUPPORTS_64BIT_KERNEL 673 select SYS_SUPPORTS_BIG_ENDIAN 674 select SYS_SUPPORTS_NUMA 675 select SYS_SUPPORTS_SMP |
| 676 select WAR_R10000_LLSC |
|
| 681 select MIPS_L1_CACHE_SHIFT_7 682 select NUMA 683 help 684 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 685 workstations. To compile a Linux kernel that runs on these, say Y 686 here. 687 688config SGI_IP28 --- 19 unchanged lines hidden (view full) --- 708 select SGI_HAS_SEEQ 709 select SGI_HAS_WD93 710 select SGI_HAS_ZILOG 711 select SWAP_IO_SPACE 712 select SYS_HAS_CPU_R10000 713 select SYS_HAS_EARLY_PRINTK 714 select SYS_SUPPORTS_64BIT_KERNEL 715 select SYS_SUPPORTS_BIG_ENDIAN | 677 select MIPS_L1_CACHE_SHIFT_7 678 select NUMA 679 help 680 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 681 workstations. To compile a Linux kernel that runs on these, say Y 682 here. 683 684config SGI_IP28 --- 19 unchanged lines hidden (view full) --- 704 select SGI_HAS_SEEQ 705 select SGI_HAS_WD93 706 select SGI_HAS_ZILOG 707 select SWAP_IO_SPACE 708 select SYS_HAS_CPU_R10000 709 select SYS_HAS_EARLY_PRINTK 710 select SYS_SUPPORTS_64BIT_KERNEL 711 select SYS_SUPPORTS_BIG_ENDIAN |
| 712 select WAR_R10000_LLSC |
|
| 716 select MIPS_L1_CACHE_SHIFT_7 717 help 718 This is the SGI Indigo2 with R10000 processor. To compile a Linux 719 kernel that runs on these, say Y here. 720 721config SGI_IP30 722 bool "SGI IP30 (Octane/Octane2)" 723 select ARCH_HAS_PHYS_TO_DMA --- 10 unchanged lines hidden (view full) --- 734 select NR_CPUS_DEFAULT_2 735 select PCI_DRIVERS_GENERIC 736 select PCI_XTALK_BRIDGE 737 select SYS_HAS_EARLY_PRINTK 738 select SYS_HAS_CPU_R10000 739 select SYS_SUPPORTS_64BIT_KERNEL 740 select SYS_SUPPORTS_BIG_ENDIAN 741 select SYS_SUPPORTS_SMP | 713 select MIPS_L1_CACHE_SHIFT_7 714 help 715 This is the SGI Indigo2 with R10000 processor. To compile a Linux 716 kernel that runs on these, say Y here. 717 718config SGI_IP30 719 bool "SGI IP30 (Octane/Octane2)" 720 select ARCH_HAS_PHYS_TO_DMA --- 10 unchanged lines hidden (view full) --- 731 select NR_CPUS_DEFAULT_2 732 select PCI_DRIVERS_GENERIC 733 select PCI_XTALK_BRIDGE 734 select SYS_HAS_EARLY_PRINTK 735 select SYS_HAS_CPU_R10000 736 select SYS_SUPPORTS_64BIT_KERNEL 737 select SYS_SUPPORTS_BIG_ENDIAN 738 select SYS_SUPPORTS_SMP |
| 739 select WAR_R10000_LLSC |
|
| 742 select MIPS_L1_CACHE_SHIFT_7 743 select ARC_MEMORY 744 help 745 These are the SGI Octane and Octane2 graphics workstations. To 746 compile a Linux kernel that runs on these, say Y here. 747 748config SGI_IP32 749 bool "SGI IP32 (O2)" --- 11 unchanged lines hidden (view full) --- 761 select R5000_CPU_SCACHE 762 select RM7000_CPU_SCACHE 763 select SYS_HAS_CPU_R5000 764 select SYS_HAS_CPU_R10000 if BROKEN 765 select SYS_HAS_CPU_RM7000 766 select SYS_HAS_CPU_NEVADA 767 select SYS_SUPPORTS_64BIT_KERNEL 768 select SYS_SUPPORTS_BIG_ENDIAN | 740 select MIPS_L1_CACHE_SHIFT_7 741 select ARC_MEMORY 742 help 743 These are the SGI Octane and Octane2 graphics workstations. To 744 compile a Linux kernel that runs on these, say Y here. 745 746config SGI_IP32 747 bool "SGI IP32 (O2)" --- 11 unchanged lines hidden (view full) --- 759 select R5000_CPU_SCACHE 760 select RM7000_CPU_SCACHE 761 select SYS_HAS_CPU_R5000 762 select SYS_HAS_CPU_R10000 if BROKEN 763 select SYS_HAS_CPU_RM7000 764 select SYS_HAS_CPU_NEVADA 765 select SYS_SUPPORTS_64BIT_KERNEL 766 select SYS_SUPPORTS_BIG_ENDIAN |
| 767 select WAR_ICACHE_REFILLS |
|
| 769 help 770 If you want this kernel to run on SGI O2 workstation, say Y here. 771 772config SIBYTE_CRHINE 773 bool "Sibyte BCM91120C-CRhine" 774 select BOOT_ELF32 775 select SIBYTE_BCM1120 776 select SWAP_IO_SPACE --- 95 unchanged lines hidden (view full) --- 872 select GENERIC_ISA_DMA 873 select HAVE_EISA 874 select HAVE_PCSPKR_PLATFORM 875 select HAVE_PCI 876 select IRQ_MIPS_CPU 877 select I8253 878 select I8259 879 select ISA | 768 help 769 If you want this kernel to run on SGI O2 workstation, say Y here. 770 771config SIBYTE_CRHINE 772 bool "Sibyte BCM91120C-CRhine" 773 select BOOT_ELF32 774 select SIBYTE_BCM1120 775 select SWAP_IO_SPACE --- 95 unchanged lines hidden (view full) --- 871 select GENERIC_ISA_DMA 872 select HAVE_EISA 873 select HAVE_PCSPKR_PLATFORM 874 select HAVE_PCI 875 select IRQ_MIPS_CPU 876 select I8253 877 select I8259 878 select ISA |
| 880 select MIPS_L1_CACHE_SHIFT_6 | |
| 881 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 882 select SYS_HAS_CPU_R4X00 883 select SYS_HAS_CPU_R5000 884 select SYS_HAS_CPU_R10000 885 select R5000_CPU_SCACHE 886 select SYS_HAS_EARLY_PRINTK 887 select SYS_SUPPORTS_32BIT_KERNEL 888 select SYS_SUPPORTS_64BIT_KERNEL 889 select SYS_SUPPORTS_BIG_ENDIAN 890 select SYS_SUPPORTS_HIGHMEM 891 select SYS_SUPPORTS_LITTLE_ENDIAN | 879 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 880 select SYS_HAS_CPU_R4X00 881 select SYS_HAS_CPU_R5000 882 select SYS_HAS_CPU_R10000 883 select R5000_CPU_SCACHE 884 select SYS_HAS_EARLY_PRINTK 885 select SYS_SUPPORTS_32BIT_KERNEL 886 select SYS_SUPPORTS_64BIT_KERNEL 887 select SYS_SUPPORTS_BIG_ENDIAN 888 select SYS_SUPPORTS_HIGHMEM 889 select SYS_SUPPORTS_LITTLE_ENDIAN |
| 890 select WAR_R4600_V2_HIT_CACHEOP |
|
| 892 help 893 The SNI RM200/300/400 are MIPS-based machines manufactured by 894 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 895 Technology and now in turn merged with Fujitsu. Say Y here to 896 support this machine type. 897 898config MACH_TX39XX 899 bool "Toshiba TX39 series based machines" 900 901config MACH_TX49XX 902 bool "Toshiba TX49 series based machines" | 891 help 892 The SNI RM200/300/400 are MIPS-based machines manufactured by 893 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 894 Technology and now in turn merged with Fujitsu. Say Y here to 895 support this machine type. 896 897config MACH_TX39XX 898 bool "Toshiba TX39 series based machines" 899 900config MACH_TX49XX 901 bool "Toshiba TX49 series based machines" |
| 902 select WAR_TX49XX_ICACHE_INDEX_INV |
|
| 903 904config MIKROTIK_RB532 905 bool "Mikrotik RB532 boards" 906 select CEVT_R4K 907 select CSRC_R4K 908 select DMA_NONCOHERENT 909 select HAVE_PCI 910 select IRQ_MIPS_CPU --- 351 unchanged lines hidden (view full) --- 1262 bool 1263 1264config PCI_XTALK_BRIDGE 1265 bool 1266 1267config NO_EXCEPT_FILL 1268 bool 1269 | 903 904config MIKROTIK_RB532 905 bool "Mikrotik RB532 boards" 906 select CEVT_R4K 907 select CSRC_R4K 908 select DMA_NONCOHERENT 909 select HAVE_PCI 910 select IRQ_MIPS_CPU --- 351 unchanged lines hidden (view full) --- 1262 bool 1263 1264config PCI_XTALK_BRIDGE 1265 bool 1266 1267config NO_EXCEPT_FILL 1268 bool 1269 |
| 1270config SOC_PNX833X 1271 bool 1272 select CEVT_R4K 1273 select CSRC_R4K 1274 select IRQ_MIPS_CPU 1275 select DMA_NONCOHERENT 1276 select SYS_HAS_CPU_MIPS32_R2 1277 select SYS_SUPPORTS_32BIT_KERNEL 1278 select SYS_SUPPORTS_LITTLE_ENDIAN 1279 select SYS_SUPPORTS_BIG_ENDIAN 1280 select SYS_SUPPORTS_MIPS16 1281 select CPU_MIPSR2_IRQ_VI 1282 1283config SOC_PNX8335 1284 bool 1285 select SOC_PNX833X 1286 | |
| 1287config MIPS_SPRAM 1288 bool 1289 1290config SWAP_IO_SPACE 1291 bool 1292 1293config SGI_HAS_INDYDOG 1294 bool --- 320 unchanged lines hidden (view full) --- 1615 1616config CPU_P5600 1617 bool "MIPS Warrior P5600" 1618 depends on SYS_HAS_CPU_P5600 1619 select CPU_HAS_PREFETCH 1620 select CPU_SUPPORTS_32BIT_KERNEL 1621 select CPU_SUPPORTS_HIGHMEM 1622 select CPU_SUPPORTS_MSA | 1270config MIPS_SPRAM 1271 bool 1272 1273config SWAP_IO_SPACE 1274 bool 1275 1276config SGI_HAS_INDYDOG 1277 bool --- 320 unchanged lines hidden (view full) --- 1598 1599config CPU_P5600 1600 bool "MIPS Warrior P5600" 1601 depends on SYS_HAS_CPU_P5600 1602 select CPU_HAS_PREFETCH 1603 select CPU_SUPPORTS_32BIT_KERNEL 1604 select CPU_SUPPORTS_HIGHMEM 1605 select CPU_SUPPORTS_MSA |
| 1623 select CPU_SUPPORTS_UNCACHED_ACCELERATED | |
| 1624 select CPU_SUPPORTS_CPUFREQ 1625 select CPU_MIPSR2_IRQ_VI 1626 select CPU_MIPSR2_IRQ_EI 1627 select HAVE_KVM 1628 select MIPS_O32_FP64_SUPPORT 1629 help 1630 Choose this option to build a kernel for MIPS Warrior P5600 CPU. 1631 It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes, --- 254 unchanged lines hidden (view full) --- 1886config SYS_SUPPORTS_ZBOOT 1887 bool 1888 select HAVE_KERNEL_GZIP 1889 select HAVE_KERNEL_BZIP2 1890 select HAVE_KERNEL_LZ4 1891 select HAVE_KERNEL_LZMA 1892 select HAVE_KERNEL_LZO 1893 select HAVE_KERNEL_XZ | 1606 select CPU_SUPPORTS_CPUFREQ 1607 select CPU_MIPSR2_IRQ_VI 1608 select CPU_MIPSR2_IRQ_EI 1609 select HAVE_KVM 1610 select MIPS_O32_FP64_SUPPORT 1611 help 1612 Choose this option to build a kernel for MIPS Warrior P5600 CPU. 1613 It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes, --- 254 unchanged lines hidden (view full) --- 1868config SYS_SUPPORTS_ZBOOT 1869 bool 1870 select HAVE_KERNEL_GZIP 1871 select HAVE_KERNEL_BZIP2 1872 select HAVE_KERNEL_LZ4 1873 select HAVE_KERNEL_LZMA 1874 select HAVE_KERNEL_LZO 1875 select HAVE_KERNEL_XZ |
| 1876 select HAVE_KERNEL_ZSTD |
|
| 1894 1895config SYS_SUPPORTS_ZBOOT_UART16550 1896 bool 1897 select SYS_SUPPORTS_ZBOOT 1898 1899config SYS_SUPPORTS_ZBOOT_UART_PROM 1900 bool 1901 select SYS_SUPPORTS_ZBOOT --- 731 unchanged lines hidden (view full) --- 2633 default 8 2634 2635config MIPS_ASID_BITS_VARIABLE 2636 bool 2637 2638config MIPS_CRC_SUPPORT 2639 bool 2640 | 1877 1878config SYS_SUPPORTS_ZBOOT_UART16550 1879 bool 1880 select SYS_SUPPORTS_ZBOOT 1881 1882config SYS_SUPPORTS_ZBOOT_UART_PROM 1883 bool 1884 select SYS_SUPPORTS_ZBOOT --- 731 unchanged lines hidden (view full) --- 2616 default 8 2617 2618config MIPS_ASID_BITS_VARIABLE 2619 bool 2620 2621config MIPS_CRC_SUPPORT 2622 bool 2623 |
| 2624# R4600 erratum. Due to the lack of errata information the exact 2625# technical details aren't known. I've experimentally found that disabling 2626# interrupts during indexed I-cache flushes seems to be sufficient to deal 2627# with the issue. 2628config WAR_R4600_V1_INDEX_ICACHEOP 2629 bool 2630 2631# Pleasures of the R4600 V1.x. Cite from the IDT R4600 V1.7 errata: |
|
| 2641# | 2632# |
| 2633# 18. The CACHE instructions Hit_Writeback_Invalidate_D, Hit_Writeback_D, 2634# Hit_Invalidate_D and Create_Dirty_Excl_D should only be 2635# executed if there is no other dcache activity. If the dcache is 2636# accessed for another instruction immeidately preceding when these 2637# cache instructions are executing, it is possible that the dcache 2638# tag match outputs used by these cache instructions will be 2639# incorrect. These cache instructions should be preceded by at least 2640# four instructions that are not any kind of load or store 2641# instruction. 2642# 2643# This is not allowed: lw 2644# nop 2645# nop 2646# nop 2647# cache Hit_Writeback_Invalidate_D 2648# 2649# This is allowed: lw 2650# nop 2651# nop 2652# nop 2653# nop 2654# cache Hit_Writeback_Invalidate_D 2655config WAR_R4600_V1_HIT_CACHEOP 2656 bool 2657 2658# Writeback and invalidate the primary cache dcache before DMA. 2659# 2660# R4600 v2.0 bug: "The CACHE instructions Hit_Writeback_Inv_D, 2661# Hit_Writeback_D, Hit_Invalidate_D and Create_Dirty_Exclusive_D will only 2662# operate correctly if the internal data cache refill buffer is empty. These 2663# CACHE instructions should be separated from any potential data cache miss 2664# by a load instruction to an uncached address to empty the response buffer." 2665# (Revision 2.0 device errata from IDT available on https://www.idt.com/ 2666# in .pdf format.) 2667config WAR_R4600_V2_HIT_CACHEOP 2668 bool 2669 2670# From TX49/H2 manual: "If the instruction (i.e. CACHE) is issued for 2671# the line which this instruction itself exists, the following 2672# operation is not guaranteed." 2673# 2674# Workaround: do two phase flushing for Index_Invalidate_I 2675config WAR_TX49XX_ICACHE_INDEX_INV 2676 bool 2677 2678# The RM7000 processors and the E9000 cores have a bug (though PMC-Sierra 2679# opposes it being called that) where invalid instructions in the same 2680# I-cache line worth of instructions being fetched may case spurious 2681# exceptions. 2682config WAR_ICACHE_REFILLS 2683 bool 2684 2685# On the R10000 up to version 2.6 (not sure about 2.7) there is a bug that 2686# may cause ll / sc and lld / scd sequences to execute non-atomically. 2687config WAR_R10000_LLSC 2688 bool 2689 2690# 34K core erratum: "Problems Executing the TLBR Instruction" 2691config WAR_MIPS34K_MISSED_ITLB 2692 bool 2693 2694# |
|
| 2642# - Highmem only makes sense for the 32-bit kernel. 2643# - The current highmem code will only work properly on physically indexed 2644# caches such as R3000, SB1, R7000 or those that look like they're virtually 2645# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2646# moment we protect the user and offer the highmem option only on machines 2647# where it's known to be safe. This will not offer highmem on a few systems 2648# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2649# indexed CPUs but we're playing safe. --- 635 unchanged lines hidden --- | 2695# - Highmem only makes sense for the 32-bit kernel. 2696# - The current highmem code will only work properly on physically indexed 2697# caches such as R3000, SB1, R7000 or those that look like they're virtually 2698# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2699# moment we protect the user and offer the highmem option only on machines 2700# where it's known to be safe. This will not offer highmem on a few systems 2701# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2702# indexed CPUs but we're playing safe. --- 635 unchanged lines hidden --- |