Messages in this thread |  | | | Date | Sat, 7 Feb 2004 00:32:05 +0200 | | From | Micha Feigin <> | | Subject | Re: Kernel DRI support |
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On Fri, Feb 06, 2004 at 10:06:41PM +0000, David Seery wrote: > Hello,
Try the dri-devel mailing list, you'll probably have more luck with this subject there. Look at http://dri.sourceforge.net/cgi-bin/moin.cgi/
> I have a laptop with a Radeon IGP 320M U1 Mobility graphics card. > > I've been looking for information on the bugzilla at XFree86, usenet, > various Linux forums and the archives of this and other mailing lists. > It's not too difficult to get the thing up and running, at the moment > with a patched XFree86 and a patched 2.6.2 kernel. > > I have two questions: > > 1. It seems like support for these nasty chipsets went into the kernel > around 2.4.22, but it doesn't work out of the box on 2.6.2 and I needed > to apply a patch, mostly to drivers/char/drm/radeon_cp.c, to shift the > base of the framebuffer. This comes from http://bugs.xfree86.org/ > show_bug.cgi?id=314. The patch didn't apply cleanly so I did it by > hand. > > Is this correct, or should the radeon agp stuff as is? > > 2. The result is not really any faster than doing it in software. In > particular, it doesn't make any difference if I have mtrr write- > combining ranges set up or not, so it seems like the AGP acceleration > isn't really being used. >
Try running glxinfo and look near the top whether dri is enabled (You also need to have it enabled in XF86Config). I'm afraid that I don't know this card so except for the setup options I probably can't help much with that one, sorry.
> Am I off the mark here, or is this a known problem with support for > these IGP devices? > > I've been unable to find previous responses about this. Pardon me if > I'm rehashing old ground. > > For benchmarking purposes, I get about 450-480 fps with glxgears as > compared with 430-450 without DRI. Or, is there another reason I should > be thinking about for poor performance? (Such as, the inherent badness > of the card, perhaps?) > > Cheers, > > David > > Some relevant output: > > dmesg | grep -i agp > ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.AGPB._PRT] > Linux agpgart interface v0.100 (c) Dave Jones > agpgart: Detected Ati IGP320/M chipset > agpgart: Maximum main memory to use for agp memory: 148M > agpgart: AGP aperture is 64M @ 0xd4000000 > agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0. > agpgart: Putting AGP V2 device at 0000:00:00.0 into 4x mode > agpgart: Putting AGP V2 device at 0000:01:05.0 into 4x mode > > dmesg | grep -i drm > [drm] Initialized i830 1.3.2 20021108 on minor 0 > [drm] Initialized radeon 1.9.0 20020828 on minor 1 > > cat /proc/mtrr > reg00: base=0x00000000 ( 0MB), size= 128MB: write-back, count=1 > reg01: base=0x08000000 ( 128MB), size= 64MB: write-back, count=1 > reg02: base=0xd4000000 (3392MB), size= 64MB: write-combining, count=2 > reg03: base=0xe0000000 (3584MB), size= 64MB: write-combining, count=2 > > grep -i drm /var/log/XFree86.0.log (trimmed) > drmOpenDevice: minor is 0 > drmOpenDevice: node name is /dev/dri/card0 > drmOpenDevice: open result is 6, (OK) > drmOpenDevice: minor is 0 > drmOpenDevice: node name is /dev/dri/card0 > drmOpenDevice: open result is 6, (OK) > drmOpenDevice: minor is 0 > drmOpenDevice: node name is /dev/dri/card0 > drmOpenDevice: open result is 6, (OK) > drmOpenDevice: minor is 1 > drmOpenDevice: node name is /dev/dri/card1 > drmOpenDevice: open result is 6, (OK) > drmGetBusid returned '' > (II) RADEON(0): [drm] created "radeon" driver at busid "PCI:1:5:0" > (II) RADEON(0): [drm] added 8192 byte SAREA at 0xcc92b000 > (II) RADEON(0): [drm] mapped SAREA 0xcc92b000 to 0x44268000 > (II) RADEON(0): [drm] framebuffer handle = 0xe0000000 > (II) RADEON(0): [drm] added 1 reserved context for kernel > (II) RADEON(0): [drm] register handle = 0xd0100000 > (II) RADEON(0): [drm] installed DRM signal handler > (II) RADEON(0): [drm] Added 32 65536 byte vertex/indirect buffers > (II) RADEON(0): [drm] Mapped 32 vertex/indirect buffers > (II) RADEON(0): [drm] dma control initialized, using IRQ 9 > (II) RADEON(0): [drm] Initialized kernel GART heap manager, 5111808 > > grep -i agp /var/log/XFree86.0.log (trimmed) > (**) RADEON(0): Option "AGPMode" "4" > (**) RADEON(0): Option "AGPFastWrite" "true" > (II) RADEON(0): AGP card detected > (**) RADEON(0): AGP 4x mode is configured > (**) RADEON(0): Enabling AGP Fast Write > (II) RADEON(0): [agp] Mode 0x0f000214 [AGP 0x1002/0xcab0; Card > 0x1002/0x4336] > (II) RADEON(0): [agp] 8192 kB allocated with handle 0x00000001 > (II) RADEON(0): [agp] ring handle = 0xd4000000 > (II) RADEON(0): [agp] Ring mapped at 0x4426a000 > (II) RADEON(0): [agp] ring read ptr handle = 0xd4101000 > (II) RADEON(0): [agp] Ring read ptr mapped at 0x4436b000 > (II) RADEON(0): [agp] vertex/indirect buffers handle = 0xd4102000 > (II) RADEON(0): [agp] Vertex/indirect buffers mapped at 0x4436c000 > (II) RADEON(0): [agp] GART texture map handle = 0xd4302000 > (II) RADEON(0): [agp] GART Texture map mapped at 0x4456c000 > > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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