Messages in this thread | | | Date | Wed, 23 Dec 1998 21:02:39 -0500 (EST) | From | John Michael Clemens <> | Subject | RE: K6-2CTX MTRR's... |
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--------Some else wrote : I set this up with an Elsa VICTORY II (Banshee, AGP, 16 MB SGRAM) and got nearly 2.5 times for 2D graphics operation and a huge bus transfer speedup!!! It offers the same as the Pentium II does.
K6,K6/2,K6/2cxt-Utility, Andreas Stiller, c't V 1.1, Nov 98 Syntax: SetK6 /on .. set WA for all memory (found: 128 MByte) Syntax: SetK6 .. w/o parameter:displays actual configuration /on:Memorysize .. enable write allocation for memory [in MByte] /off .. disable write allocation SetK6 /M0:LFB,Size[,attr] Write combining for primary LFB SetK6 /M1:LFB2,Size[,attr] Write combining for second. LFB
CPUID : Typ=00 Fam=05 Mod=08 Step=0C Processor Name : AMD K6-2CXT Step 12, 401 MHz PCI Framebuffers : 1. E8000000, 2. EC000000 ------
ironic that this would come out earlier today before i posted my question <g>, because i only get the digest and didn't know someone had asked.. Yes, here are all the processors that now support "MTRR's", i did a little digging, and...:
Pentium II/Pro : 8? MTRR registers AMD K6-2CTX/K6-3 : 2 MTRR registers Cyrix 6x86MX/M2 : 8 ARR (Address Range Registers) Centaur/IDT Winchip : 8 MCR (Memory Control Registers)
Richard Gooch wrote and maintains the official P2/PPro MTRR code in the kernel...i've written him because once i write working code for the Winchip, i'll gladly expand his interface to transparently cover all 4 chips..the problem being that i won't havea K6-2 and a cyrix to test them out on...i've downloaded all the spec sheets for all 3 processors, so w'll have to see...
the important thing is getting it to merge with the existing MTRR interface, so that there's a consistant interface to access all four. i don't see this making it into official 2.2 thouygh...maybe an unofficial patch though, or modules...
comments? corrections? john.c
/* John Clemens http://www.rpi.edu/~clemej _/ */ /* RPI CompE 2000 clemej@rpi.edu _/ Speak Softly, */
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