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References: <199807051700.AA00020@yyutaka.ff.iij4u.or.jp>
From: Akio Morita <amorita@meadow.scphys.kyoto-u.ac.jp>
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Date: 06 Jul 1998 12:28:39 +0900
In-Reply-To: Yutaka Yoshinari's message of "Mon, 06 Jul 1998 02:00:08 +0900"
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Subject: [FreeBSD-users-jp 30470] Re: about MH2-MX233-N
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$B?9ED!w5~Bg$G$9(B

Yutaka Yoshinari(yyutaka@ff.iij4u.or.jp)$B$5$s$O!"(B
Mon, 06 Jul 1998 02:00:08 +0900$B$K(B
$B!V(B[FreeBSD-users-jp 30460] about MH2-MX233-N$B!W$N(BMessage$B$G=q$-$^$7$?(B

$B!d(B
$B!d$3$s$K$A$O5H@.$H$$$$$^$9!#(B
$B!d(BPC9821Xa7/C4$B$K(BFreeBSD(98)2.2.6-Rev02$B$rF~$l$F5o$k$N$G$9$,!"(B
$B!d:G6a(BPentium75MHz$B$G$O$5$9$,$K(BCPU$B$,IO<e$J$N$G!"(BMH2-MX233-N
$B!d$r9XF~$7$F!"$5$7$?$H$3$m!"(Bkernel$B$N(Breconfig$B$,$G$-$J$/$J$C$F(B
$B!d$7$^$$$^$7$?!#(Bmake$B$NESCf$G(Bsignal 11$B$,$G$F!"(Bcore$B$r$O$$$F(B
$B!d(Bstop$B$7$^$9!#;n$7$K(BGeneric98$B$r(Bcompile$B$7$F$_$h$&$H$7$?$i(B
$B!d:#EY$O(Bmake depend$B$NESCf$G(Bsignal 11$B$,$G$F!"(Bstop$B$r$7$^$9!#(B
$B!d$5$i$K0JA0$OF0$$$F$$$?!"(BX$B$b(Bno screen$B$H$+$$$o$l$F!"(B
$B!dN)$A>e$,$i$J$/$J$C$F$7$^$$$^$7$?!#(Bkernel$B$,(Breconfig$B$G$-$J$$$N$G(B
$B!d8=:_$O(Bkernel.GENERIC98$B$K$7$F$$$^$9!#(B
$B!d(BFreeBSD(98)$B$G(BCyrix6x86MX$B$r;H$&$3$H$O$G$-$J$$$N$G$7$g$&$+!)$@$l$+(B
$B!d65$($F$/$@$5$$!#(B
$B!d(B
$B2DG=@-$H$7$F$O!"%"%/%;%i%l!<%?$K$h$kEE8;Ii2Y$NA}Bg$KH<$&EE05$N(B
$BIT0BDj2=$d(B CPU$B$NH/G.$b9M$($i$l$^$9$,!"(BMS-Windows$B$,@5>o$KF0$/(B
$B$N$G$"$l$P!"(B6x86MX$B$N(B Unified Cache$B$N(B Flush$B$,$&$^$/$$$C$F$$$J$$$H(B
$B9M$($i$l$^$9(B
$B$3$l$,860x$@$H$9$k$H!"(BMS-Windows$B$rF0$+$9:]$K(B Cache$B%3%s%H%m!<%i$r(B
$BAH$_9~$s$G$k$h$&$K!"F1<o$N5!G=$r(B Kernel(i386/i386/initcpu.c)$B$K(B
$BF~$l$kI,MW$,$"$j!"4pK\E*$K$O(B i386/i386/initcpu.c$BFb$N(B
static void init_6x86MX(void)$B$K(B
#if defined(PC98) && !defined(CPU_UPGRADE_HW_CACHE)
        need_pre_dma_flush = 1;
        need_post_dma_flush = 1;
#endif
$B$N#49T$rAH$_9~$a$PNI$$$H;W$$$^$9(B
i386/i386/initcpu.c$B$h$j0zMQ(B
/*
 * OS should flush L1 cahce by itself because no PC-98 supports
 * non-Intel CPUs.  Use wbinvd instruction before DMA transfer
 * when need_pre_dma_flush = 1, use invd instruction after DMA
 * transfer when need_post_dma_flush = 1.  If your CPU upgrade
 * product support hardware cache control, you can add
 * UPGRADE_CPU_HW_CACHE option in your kernel configuration file.
 * This option elminate unneeded cache flush instruction.
 */
$B$5$i$K!"$3$l$r%3%s%Q%$%k$9$k$?$a$K!"0lEY(B Normal$B$N(B CPU$B$KLa$9I,MW$,$"$k$H(B
$B;W$o$l$^$9(B

---
#   Akio Morita ( $B?9ED(B $B><IW(B -- $B5~ETBg3XBg3X1!M}3X8&5f2J=$;N(B2$B2s@8(B )  #
#          E-Mail: amorita@meadow.scphys.kyoto-u.ac.jp              #
#  URL: http://tancho.scphys.kyoto-u.ac.jp/~amorita/member.html     #

