[Xpert]Setting up MTRR support
I am completely new to Linux, so please bear with me. I am trying to speed up DVD playback under Xine. xine-check gives me the following information: [ hint ] you have MTRR support but it's unused. It seems like your X server didn't set any MTRR ranges for the graphics card. Maybe upgrading your X server helps... You don't have a PCI graphics card, do you? AFAIK, MTRR only helps with AGP cards. press enter to continue... It seems that I have to set MTRR ranges for my graphics card (ATI Radeon700, and an AMD K6-2). I am told that I need to first determine the memory base address of the graphics card by looking at XFree86.0.log. I take it that this is the relevant line from XFree86.0.log: (--) PCI:*(1:0:0) ATI Radeon VE QY rev 0, Mem @ 0xd000/27, 0xd900/16, I/O @ 0xc000/8 From this I take it that the memory base address for my graphics card is 0xd900. Is this correct? Also, my graphics card has 32MB RAM, which is in Hex: 0x200. Correct so far? With these values, I do the following: # cat /proc/mtrr reg00: base=0xd000 (3328MB), size= 32MB: write-combining, count=1 # echo base=0xd900 size=0x200 type=write-combining | /proc/mtrr # cat /proc/mtrr reg00: base=0xd000 (3328MB), size= 32MB: write-combining, count=1 Something seems to have gone wrong, no? Shouldn't the output of the second cat /proc/mtrr be different from the output of the first one? Can anyone explain to me what is going wrong, and what I have to do to set the correct MTRR ranges? Thanks a lot, Markus PS: Here is my XFree86.0.log, in case something is wrong with the memory base address I am trying to use: XFree86 Version 4.2.0 (Red Hat Linux release: 4.2.0-8) / X Window System (protocol Version 11, revision 0, vendor release 6600) Release Date: 23 January 2002 If the server is older than 6-12 months, or if your card is newer than the above date, look for a newer version before reporting problems. (See http://www.XFree86.Org/) Build Operating System: Linux 2.4.17-0.13smp i686 [ELF] Build Host: daffy.perf.redhat.com Module Loader present Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. (==) Log file: /var/log/XFree86.0.log, Time: Thu Jul 18 10:07:17 2002 (==) Using config file: /etc/X11/XF86Config-4 (==) ServerLayout Anaconda Configured (**) |--Screen Screen0 (0) (**) | |--Monitor Monitor0 (**) | |--Device ATI Radeon 7000 (**) |--Input Device Mouse0 (**) |--Input Device Keyboard0 (**) Option XkbRules xfree86 (**) XKB: rules: xfree86 (**) Option XkbModel pc105 (**) XKB: model: pc105 (**) Option XkbLayout us (**) XKB: layout: us (==) Keyboard: CustomKeycode disabled (**) FontPath set to unix/:7100 (**) RgbPath set to /usr/X11R6/lib/X11/rgb (==) ModulePath set to /usr/X11R6/lib/modules (--) using VT number 7 (II) Open APM successful (II) Module ABI versions: XFree86 ANSI C Emulation: 0.1 XFree86 Video Driver: 0.5 XFree86 XInput driver : 0.3 XFree86 Server Extension : 0.1 XFree86 Font Renderer : 0.3 (II) Loader running on linux (II) LoadModule: bitmap (II) Loading /usr/X11R6/lib/modules/fonts/libbitmap.a (II) Module bitmap: vendor=The XFree86 Project compiled for 4.2.0, module version = 1.0.0 Module class: XFree86 Font Renderer ABI class: XFree86 Font Renderer, version 0.3 (II) Loading font Bitmap (II) LoadModule: pcidata (II) Loading /usr/X11R6/lib/modules/libpcidata.a (II) Module pcidata: vendor=The XFree86 Project compiled for 4.2.0, module version = 0.1.0 ABI class: XFree86 Video Driver, version 0.5 (II) PCI: Probing config type using method 1 (II) PCI: Config type is 1 (II) PCI: stages = 0x03, oldVal1 = 0x8060, mode1Res1 = 0x8000 (II) PCI: PCI scan (all values are in hex) (II) PCI: 00:00:0: chip 1106,0598 card , rev 04 class 06,00,00 hdr 00 (II) PCI: 00:01:0: chip 1106,8598 card , rev 00 class 06,04,00 hdr 01 (II) PCI: 00:07:0: chip 1106,0586 card 1106, rev 47 class 06,01,00 hdr 80 (II) PCI: 00:07:1: chip 1106,0571 card , rev 06 class 01,01,8a hdr 00 (II) PCI: 00:07:2: chip 1106,3038 card 0925,1234 rev 02 class 0c,03,00 hdr 00 (II) PCI: 00:07:3: chip 1106,3040 card , rev 10 class 06,00,00 hdr 00 (II) PCI: 00:08:0: chip 12b9,1008 card 12b9,00d7 rev 01 class 07,00,02 hdr 00 (II) PCI: 00:09:0: chip 10ec,8139 card 10ec,8139 rev 10 class 02,00,00 hdr 00 (II) PCI: 00:0a:0: chip 1274,1371 card 1274,1371 rev 08 class 04,01,00 hdr 00 (II) PCI: 01:00:0: chip 1002,5159 card 1002,000a rev 00 class 03,00,00 hdr 00 (II) PCI: End of PCI scan (II) LoadModule: scanpci (II) Loading /usr/X11R6/lib/modules/libscanpci.a (II) Module scanpci: vendor=The XFree86 Project compiled for 4.2.0, module version = 0.1.0 ABI class: XFree86 Video Driver, version 0.5 (II)
Re: [Xpert]Setting up MTRR support
Yello On Thu, 18 Jul 2002 15:40:36 -0500 (CDT) Markus Glodek [EMAIL PROTECTED] wrote: I am completely new to Linux, so please bear with me. I am trying to speed up DVD playback under Xine. xine-check gives me the following information: [ hint ] you have MTRR support but it's unused. It seems like your X server didn't set any MTRR ranges for the graphics card. Maybe upgrading your X server helps... You don't have a PCI graphics card, do you? AFAIK, MTRR only helps with AGP cards. press enter to continue... Are you sure you have MTRR support in your kernel? cat /var/log/messages | grep -i mtrr gives me (Matrox gfx card): Jul 18 22:56:03 spookcentral kernel: mtrr: v1.40 (20010327) Richard Gooch ([EMAIL PROTECTED]) Jul 18 22:56:03 spookcentral kernel: mtrr: detected mtrr type: Intel Jul 18 22:56:03 spookcentral kernel: matroxfb: MTRR's turned on -- Mvh. / Kind regards Henrik Farre http://www.cs.auc.dk/~enrique http://www.fsf.org/philosophy/no-word-attachments.html ___ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
Re: [Xpert]Setting up MTRR support
Many thanks for the response. cat /var/log/messages | grep -i mtrr gives me Jul 18 10:04:58 philo kernel: mtrr: v1.40 (20010327) Richard Gooch ([EMAIL PROTECTED]) Jul 18 10:04:58 philo kernel: mtrr: detected mtrr type: AMD K6 Nothing about MTRR's turned on. I thought that the mere presence of /proc/mtrr (it's there) tells me that my kernel supports MTRR. Does it? What should I do? Thanks. [ hint ] you have MTRR support but it's unused. It seems like your X server didn't set any MTRR ranges for the graphics card. Maybe upgrading your X server helps... You don't have a PCI graphics card, do you? AFAIK, MTRR only helps with AGP cards. press enter to continue... Are you sure you have MTRR support in your kernel? cat /var/log/messages | grep -i mtrr gives me (Matrox gfx card): Jul 18 22:56:03 spookcentral kernel: mtrr: v1.40 (20010327) Richard Gooch ([EMAIL PROTECTED]) Jul 18 22:56:03 spookcentral kernel: mtrr: detected mtrr type: Intel Jul 18 22:56:03 spookcentral kernel: matroxfb: MTRR's turned on ___ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
Re: [Xpert]Setting up MTRR support
On Thu, Jul 18, 2002 at 06:30:42PM -0500, Markus Glodek wrote: [ hint ] you have MTRR support but it's unused. It seems like your X server didn't set any MTRR ranges for the graphics card. Maybe upgrading your X server helps... You don't have a PCI graphics card, do you? AFAIK, MTRR only helps with AGP cards. False. Using a write-combining MTRR helps performance on PCI as well as AGP. Are you sure you have MTRR support in your kernel? cat /var/log/messages | grep -i mtrr grep -i mtrr /var/log/messages. Useless Use of Cat award! gives me (Matrox gfx card): Jul 18 22:56:03 spookcentral kernel: mtrr: v1.40 (20010327) Richard Gooch ([EMAIL PROTECTED]) Jul 18 22:56:03 spookcentral kernel: mtrr: detected mtrr type: Intel Jul 18 22:56:03 spookcentral kernel: matroxfb: MTRR's turned on This line is only present because you have a Matrox card and are using the matroxfb module. Non-Matrox cards, or people who don't use matroxfb, won't see it. Jul 18 10:04:58 philo kernel: mtrr: v1.40 (20010327) Richard Gooch ([EMAIL PROTECTED]) Jul 18 10:04:58 philo kernel: mtrr: detected mtrr type: AMD K6 Nothing about MTRR's turned on. I thought that the mere presence of /proc/mtrr (it's there) tells me that my kernel supports MTRR. Does it? What should I do? On startup, before X has ever run, do a cat /proc/mtrr. You should see a single MTRR the size of your memory, like so: reg00: base=0x ( 0MB), size= 256MB: write-back, count=1 Then, start X. In an xterm, do cat /proc/mtrr. You should see some more mtrr entries there. Here's mine: reg00: base=0x ( 0MB), size= 256MB: write-back, count=1 reg01: base=0xd400 (3392MB), size= 16MB: write-combining, count=1 reg05: base=0xd000 (3328MB), size= 64MB: write-combining, count=1 Those write-combining entries indicate that the framebuffer has been mapped. Additionally, you can look at the XFree86 log file, /var/log/XFree86.0.log. Search for MTRR. (Case insensitive, I suppose.) -andy ___ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
Re: [Xpert]Setting up MTRR support
Many thanks for the response. False. Using a write-combining MTRR helps performance on PCI as well as AGP. I actually have an AGP card (ATI Radeon7000) On startup, before X has ever run, do a cat /proc/mtrr. You should see a single MTRR the size of your memory, like so: reg00: base=0x ( 0MB), size= 256MB: write-back, count=1 Doesn't work here. If I do cat /proc/mtrr before running an X-server I get nothing at all: Then, start X. In an xterm, do cat /proc/mtrr. You should see some more mtrr entries there. Here's mine: reg00: base=0x ( 0MB), size= 256MB: write-back, count=1 reg01: base=0xd400 (3392MB), size= 16MB: write-combining, count=1 reg05: base=0xd000 (3328MB), size= 64MB: write-combining, count=1 Running cat /proc/mtrr after starting the X server gives me the following: reg00: base=0xd000 (3328MB), size= 32MB: write-combining, count=1 I do not seem to be able to modify this entry with echo base=0xd900 size=0x200 type=write-combining | /proc/mtrr When I do another cat /proc/mtrr, I simply get the same as before: reg00: base=0xd000 (3328MB), size= 32MB: write-combining, count=1 Additionally, you can look at the XFree86 log file, Can't find anything about MTRR in XFree86.0.log. I included a copy of the file in my first post. Any ideas on how get MTRR set up under these circumstances? Thanks, Markus ___ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
Re: [Xpert]Setting up MTRR support
On Thu, 18 Jul 2002, Andy Isaacson wrote: Doesn't work here. If I do cat /proc/mtrr before running an X-server I get nothing at all: Ah, perhaps your CPU only has 1 MTRR. You could check the kernel code if you're very curious. The AMD K6-2 has two (I was curious some months ago and read the documentation from AMD). Running cat /proc/mtrr after starting the X server gives me the following: reg00: base=0xd000 (3328MB), size= 32MB: write-combining, count=1 That looks a whole lot like a framebuffer. So what's the point of this thread, then, if it's working fine for you? :) (I came in at the tail end here, sorry if I'm missing context.) It probably is his framebuffer. What troubles him, I think, is that lspci tells him that the video card has two memory ranges and only one of them is covered by an MTRR. I have an AMD K6-2 500 MHz and a RIVA TNT2 M64 card. I'm running Linux 2.2.21 and XFree86 4.2.0. cat /proc/mtrr: reg00: base=0xe600 (3680MB), size= 32MB: write-combining, count=1 lspci: 01:00.0 VGA compatible controller: nVidia Corporation Riva TNT2 Model 64 (rev 15) (prog-if 00 [VGA]) Subsystem: AOPEN Inc.: Unknown device 000d Flags: bus master, 66Mhz, medium devsel, latency 64, IRQ 9 Memory at e400 (32-bit, non-prefetchable) Memory at e600 (32-bit, prefetchable) Expansion ROM at e500 [disabled] Capabilities: [60] Power Management version 1 Capabilities: [44] AGP version 2.0 If anybody knows why my card also shows up twice in the memory map I'd be much obliged. Is the first (non-prefetchable) part memory-mapped control registers for the accellerator functions and the second one the framebuffer? (I think I used to know this... :/ ) -Peter ___ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
Re: [Xpert]Setting up MTRR support
On Fri, 19 Jul 2002, Peter Finderup Lund wrote: lspci: 01:00.0 VGA compatible controller: nVidia Corporation Riva TNT2 Model 64 (rev 15) (prog-if 00 [VGA]) Subsystem: AOPEN Inc.: Unknown device 000d Flags: bus master, 66Mhz, medium devsel, latency 64, IRQ 9 Memory at e400 (32-bit, non-prefetchable) Memory at e600 (32-bit, prefetchable) Expansion ROM at e500 [disabled] Capabilities: [60] Power Management version 1 Capabilities: [44] AGP version 2.0 If anybody knows why my card also shows up twice in the memory map I'd be much obliged. Is the first (non-prefetchable) part memory-mapped control registers for the accellerator functions and the second one the framebuffer? The non-prefectable is registers, the prefecthable is framebuffer. Mark. ___ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
