TODO revision 1.8
1$NetBSD: TODO,v 1.8 2000/03/04 07:09:09 nisimura Exp $ 2 3To do list (not in any particular order). 4 5 o Move the RO and WIRED attribute from the pte to the pv table. 6 This saves four instructions in the tlb miss handler. 7 8 o Boot. Standalone boot program instead of booting the kernel directly? 9 10 o Find out why bitmap load to S3-928 flashes screen. (X server) 11 Know why (enable linear mode). Need S3 info. 12 13 o Can we have 32 double registers? 14 15 o 64bit kernel/userland 16 17 o repair DeskStation and Algor support 18 19 - 64bit device physical address space for Tyne (see OpenBSD pmap.c) 20 21 - requires bus_dma 22 23 o source code structure is quite obsolete, 24 general clean up is needed as nisimura-san suggested. 25 especially: 26 27 - introduce struct platform and remove ugly ``switch (cputype)'' 28 in many places. 29 30 - redesign interrupt handler framework to be flexible for 31 possible variations; must be sane and useful for R4030/R4230 32 'local' devices and any combinations with ISA/EISA/PCI 33 34 - implement and use bus_dma, keeping in mind TLB assisted VDMA 35 that R4030/R4230 chip provides 36 37 - clean up bus_space implementation, remove inb/outb 38 39 - try to interporate HZ; may be possible for R4030/R4230 system 40 or 'hardclock() by R4000' system. Clock resolution of 100Hz 41 without any interporation is substandard 42 43 o fix kernel start address 44 45 o merge new wscons 46 47 o parse ARC BIOS configuration information and use it 48 49 o omit __BROKEN_CONFIG_UNIT_USAGE 50 51 o omit __SWAP_BROKEN in <mips/types.h> 52 53 o fix implementation of DELAY(), clean up clock implementation 54 55 o asc.c scsi clock/NCR53CF94 handling clean up 56 57 o if_sn.c ether address handling clean up 58 59 o com_lbus.c clock handling clean up 60 61 o implement NCR 53c700(?) driver for NEC RISCserver 2200 62 based on amiga siop driver? 63 64 o audio driver 65 66 o use MI driver 67 68 - use MI ncr53c9x driver instead of home grown asc 69 70 - use MI bha driver instead of home grown btl 71 72 - make sonic driver MI, and share it with mac68k, newsmips/apbus 73 74 - make fd driver MI, and share it with i386 75 (contact christos about MI fd driver) 76 77 - make pccons MI, and share it with i386, 78 or simply eliminate pccons 79 80 - LKM 81 82 o ARC boot device name -> NetBSD root device conversion 83 84 o and missing MI devices 85 ses?, lkm, vcoda, ... 86 87 o way to specify serial console 88 89 o resolve "XXX" 90 91Lots of other things..... 92