116 lines
3.0 KiB
Plaintext
116 lines
3.0 KiB
Plaintext
$NetBSD: TODO,v 1.28 2009/10/21 21:11:59 rmind Exp $
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To do list (in some particular order)
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XXX some entries might be obsolete.
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o install notes
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o use MI driver
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- make fd driver MI, and share it with other ports
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(contact christos about MI fd driver)
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- use MI bha driver instead of home grown btl
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XXX needs fixes of DESKstation support
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o VXL framebuffer support (Magnum, RISCstation 2200)
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o com_jazzio.c
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- clock handling clean up (obtain from ARC BIOS)
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- fifo disabling may be only needed on some Magnum?
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o remove pccons and switch to wscons completely
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(XXX what's the problem to remove pccons?)
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o AD1848 audio support
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o missing MI devices
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ses?, vcoda, ...
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o Xserver
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- VXL Magnum, RISCstation 2200
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- vga/S3 PICA, Image RISCstation - OpenBSD's?
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- vga/cirrus RISCserver 2200, Express5800/240 R4400 EISA
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- vga/??? DESKstation Tyne, rPC44
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- TGA RISCstation 2250, Express5800/230 R4400 PCI
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o Find out why bitmap load to S3-928 flashes screen. (X server)
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Know why (enable linear mode). Need S3 info.
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o repair DescStation support
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- requires bounce buffer bus_dma for Tyne
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XXX - too small bounce buffer size (128KB)
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o Olivetti M700 support
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o NEC Express5800/230 R10000 PCI (NEC-J95) support
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(needs info about interrupt, jazzio device address etc.)
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o SNI RM200PCI/RM300/RM400/RM600 support
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(Linux/MIPS seems to have some info)
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o parse ARC BIOS configuration information and use it
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o fix kernel start address
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(maybe requires bootloader support)
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o allocate PICA_TL_BASE dynamically
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o remove inb/outb
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o remove UADDR
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o fix mem_clusters[] usage.
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o intrcnt[] name cleanup, use MI evcnt(9)
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o test and merge soren's clean up about proc0.p_addr.
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o redesign interrupt handler framework.
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o it is better to always disable the MIPS3 internal timer interrupts
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(i.e. MIPS_INT_MASK_5) if it is not needed for the system.
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those are the points which should be fixed:
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mips_idle: li t0, (MIPS_INT_MASK | MIPS_SR_INT_IE)
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machdep.c: curpcb->pcb_context[11] = MIPS_INT_MASK | MIPS_SR_INT_IE;
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spl0()
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splnone()
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o XXX at least 2000/06/07 version is already quite unstable
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on PICA and NEC Image RISCstation. (but almost OK on Magnum)
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Userland commands dumps core randomly.
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This version is before _MIPS_PADDR_T_64BIT changes
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and MIPS3_TLB_WIRED_UPAGES changes.
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"vm_page_zero_enable = FALSE" makes this problem disappeared.
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(vm_page_zero_enable = FALSE by default on all archs w/ UBC, now)
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currently, page zero in the idle loop is also disabled on
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untested platforms like DESKstation rPC44/Tyne and SNI for safety.
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XXX what's the current status of uvm_pageidlezero()?
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o resolve "XXX"
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(following entries might be MI MIPS items)
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o make CLKF_INTR() work.
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o Move the RO and WIRED attribute from the pte to the pv table.
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This saves four instructions in the tlb miss handler.
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o Can we have 32 double registers?
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o 64bit kernel/userland
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o clean up ALEAF/NLEAF/NON_LEAF/NNON_LEAF in userland.
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Lots of other things.....
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