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Ulukay
Tux's lil' helper
Joined: 08 Oct 2002
Posts: 143
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 Posted: Fri Jan 02, 2004 12:28 pm Post subject: got AGP working on K8T800 on 2.6.0 kernel! |
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maybee many k8t800 user know this error messages:
dmesg:
Jan 2 12:51:09 sunnygentoo32 kernel: Linux agpgart interface v0.100 (c) Dave Jones
Jan 2 12:51:37 sunnygentoo32 kernel: agpgart: Detected AGP bridge 0
Jan 2 12:51:37 sunnygentoo32 kernel: agpgart: Too many northbridges for AGP
Jan 2 12:53:47 sunnygentoo32 kernel: nvidia: no version magic, tainting kernel.
Jan 2 12:53:47 sunnygentoo32 kernel: nvidia: module license 'NVIDIA' taints kernel.
Jan 2 12:53:47 sunnygentoo32 kernel: 0: nvidia: loading NVIDIA Linux x86 nvidia.o Kernel Module 1.0-5328 Wed Dec 17 13:54:51 PST 2003
and XF86log:
(**) NVIDIA(0): Use of AGPGART requested
(--) NVIDIA(0): Linear framebuffer at 0xB0000000
(--) NVIDIA(0): MMIO registers at 0xCE000000
(II) NVIDIA(0): NVIDIA GPU detected as: GeForce FX 5900 Ultra
(--) NVIDIA(0): VideoBIOS: 04.35.20.22.00
(--) NVIDIA(0): VideoRAM: 262144 kBytes
(WW) NVIDIA(0): Failed to verify AGP usage
sunnydale root # cat /proc/driver/nvidia/agp/status
Status: Disabled
but there is a VERY simple solution
edit your /usr/src/linux/drivers/char/agp/amd64-agp.c
search for this section:
| Code: |
static __devinit int cache_nbs (struct pci_dev *pdev, u32 cap_ptr)
{
struct pci_dev *loop_dev = NULL;
int i = 0;
/* cache pci_devs of northbridges. */
while ((loop_dev = pci_find_device(PCI_VENDOR_ID_AMD, 0x1103, loop_dev))
!= NULL) {
if (fix_northbridge(loop_dev, pdev, cap_ptr) < 0) {
printk(KERN_INFO PFX "No usable aperture found.\n");
#ifdef __x86_64__
/* should port this to i386 */
printk(KERN_INFO PFX "Consider rebooting with iommu=memaper=2 to get a good aperture.\n");
#endif
return -1;
}
hammers[i++] = loop_dev;
nr_garts = i;
if (i == MAX_HAMMER_GARTS) {
printk(KERN_INFO PFX "Too many northbridges for AGP\n");
return -1;
}
}
return i == 0 ? -1 : 0;
}
|
aaaand:
move these 2 lines below the next if statement
"hammers[i++] = loop_dev;
nr_garts = i;"
so it should look like this:
| Code: |
static __devinit int cache_nbs (struct pci_dev *pdev, u32 cap_ptr)
{
struct pci_dev *loop_dev = NULL;
int i = 0;
/* cache pci_devs of northbridges. */
while ((loop_dev = pci_find_device(PCI_VENDOR_ID_AMD, 0x1103, loop_dev))
!= NULL) {
if (fix_northbridge(loop_dev, pdev, cap_ptr) < 0) {
printk(KERN_INFO PFX "No usable aperture found.\n");
#ifdef __x86_64__
/* should port this to i386 */
printk(KERN_INFO PFX "Consider rebooting with iommu=memaper=2 to get a good aperture.\n");
#endif
return -1;
}
if (i == MAX_HAMMER_GARTS) {
printk(KERN_INFO PFX "Too many northbridges for AGP\n");
return -1;
}
hammers[i++] = loop_dev;
nr_garts = i;
}
return i == 0 ? -1 : 0;
} |
now you get the following:
dmesg;
Linux agpgart interface v0.100 (c) Dave Jones
agpgart: Detected AGP bridge 0
agpgart: Maximum main memory to use for agp memory: 941M
agpgart: AGP aperture is 256M @ 0xd0000000
nvidia: no version magic, tainting kernel.
nvidia: module license 'NVIDIA' taints kernel.
0: nvidia: loading NVIDIA Linux x86 nvidia.o Kernel Module 1.0-5328 Wed Dec 17 13:54:51 PST 2003
agpgart: Found an AGP 3.0 compliant device at 0000:00:00.0.
agpgart: Putting AGP V3 device at 0000:00:00.0 into 8x mode
agpgart: Putting AGP V3 device at 0000:01:00.0 into 8x mode
XF86log:
(II) NVIDIA(0): AGP 8X successfully initialized
sunnygentoo32 root # cat /proc/driver/nvidia/agp/status
Status: Enabled
Driver: AGPGART
AGP Rate: 8x
Fast Writes: Enabled
SBA: Enabled
edit: i forgot, i configured my kernel this way:
<M> /dev/agpgart (AGP Support)
<M> AMD Opteron/Athlon64 on-CPU GART support
and i'm using "NvAgp" "2" in my XF86Config
after you changed the /usr/src/linux/drivers/char/agp/amd64-agp.c, you have to recompile your kernelo modules with
cd /usr/src/linux
make modules modules_install
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Jeden Tag erhöht sich zwangsläufig die Anzahl derer, die mich
am Arsch lecken können... Das ist heute DEIN Tag! |
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markfl
Apprentice
Joined: 10 Apr 2003
Posts: 240
Location: Kent, UK
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| Posted: Fri Jan 02, 2004 12:48 pm Post subject: |
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Congratulations, my Asus P4C800 was easy to configure, i just emerged nvidia-kernel, didnt compile agpgart and let nvidia do the work, its pretty fast and lets me game away 
MJ
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Life it seems, will fade away
Drifting further every day |
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Config
Retired Dev
Joined: 25 May 2003
Posts: 187
Location: Zurich, Switzerland
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| Posted: Sat Jan 03, 2004 11:45 am Post subject: |
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Is there any way to use 32bit compiled opengl apps like Quake3?
Thanks
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Config - caught by a chronic disease called tuxmania.... |
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Ulukay
Tux's lil' helper
Joined: 08 Oct 2002
Posts: 143
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| Posted: Wed Jan 07, 2004 11:10 pm Post subject: |
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www.kernel.org
the 2.6.1-rc2 patch should include this (and many other) agpgart fix
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