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Date: Tue, 26 Sep 2000 08:33:21 +0900
From: ARAKAWA Osamu <oarakawa@mri-jma.go.jp>
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Subject: [FreeBSD-users-jp 55553] DMA is not avaiable on ThinkPad535E? ( Re: [FreeBSD-users-jp
 55522] Re: Can't use DMA transfer mode with ata driver)
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$B$"$i$+$o!w(BMRI$B$G$9!#(B

$B!t(Bsubject $BJQ$($^$7$?!#(B

$B<+Bp$N(BThinkPad535E($B$3$N2F$N=k$5$G%P%C%F%j!<$,$*$J$/$J$j$K$J$C$F$7$^$C$F(B
$B$$$^$d3F<o%1!<%V%k$K$h$C$F4y$KG{$jIU$1$i$l$F$$$^$9(B...)$B$r3NG'$7$F$-$^$7$?!#(B
OS$B$O(B3.5.1-RELEASE with PAO3$B$G$7$?!#(B(source$B$+$i(Bmake buildworld$B$7$?$NK:$l$F$?(B)

<dmesg$B$h$jH4?h(B>

FreeBSD 3.5.1-RELEASE #1: Sun Aug 27 12:51:36 JST 2000
    root@amaranth3.mri-jma.go.jp:/usr/src/sys/compile/PAO
Timecounter "i8254"  frequency 1193182 Hz
CPU: Pentium/P55C (149.69-MHz 586-class CPU)
  Origin = "GenuineIntel"  Id = 0x544  Stepping = 4
  Features=0x8001bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,MMX>
real memory  = 75497472 (73728K bytes)
avail memory = 70647808 (68992K bytes)
Preloaded elf kernel "kernel" at 0xc0286000.
Probing for devices on PCI bus 0:
chip0: <Intel 82437MX mobile PCI cache memory controller> rev 0x02 on pci0.0.0
chip1: <Intel 82371FB PCI to ISA bridge> rev 0x02 on pci0.1.0

<....>

wdc0 at 0x1f0-0x1f7 irq 14 flags 0xa0ff on isa 
wdc0: unit 0 (wd0): <IBM-DBCA-204860>, 32-bit, multi-block-16
wd0: 4645MB (9514260 sectors), 10068 cyls, 15 heads, 63 S/T, 512 B/S

-----------------
<kernel configuration$B$NH4?h(B: PAO_ALL$B$r=$@5$7$F;HMQ!#(B>

controller      wdc0    at isa? port "IO_WD1" bio irq 14 flags 0xa0ff
disk            wd0     at wdc0 drive 0


$B$3$N$h$&$K!"(B"flags 0xa0ff"$B$r;XDj$7$F(B

multi-sector I/O
32bit transfer
PCI IDE DMA

$B$r;HMQ$9$k$h$&$K@_Dj$7$?(Bconfiguration file$B$+$i@8@.$7$?(Bkernel$B$G$b(Bboot
message$B$r8+$k8B$j(B

multi-sector I/O
32bit transfer

$B$OM-8z$K$J$C$F$$$F$b(B

PCI IDE DMA

$B$OM-8z$K$O$J$C$F$$$J$$$G$9!#(B

$B$d$O$j!"(BThinkPad535E$B$G$O!"(BFreeBSD$B$r;HMQ$9$k8B$j8=>u$G$O(B($B$*$=$i$/:#8e$b(B?)
Bus Master IDE$B$O;H$($J$$$G$7$g$&!#!J$9$G$K$"$-$i$a$F$^$9!"$J$+$P!#!K(B

$B0J>e!";29M$K$J$l$P!#(B
---------
arkw
