Messages in this thread |  | | Date | Thu, 15 Nov 2001 01:27:09 -0500 | From | lists@sapience ... | Subject | Re: Problem with i820 AGP patch |
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I have a similar problem with i860 - using 2.4.15-pre4.
I get on a dell 530 dual p4 + radeon video:
Nov 14 00:31:40 flash kernel: Linux agpgart interface v0.99 (c) Jeff Hartmann Nov 14 00:31:40 flash kernel: agpgart: Maximum main memory to use for agp memory: 816M Nov 14 00:31:40 flash kernel: agpgart: Unsupported Intel chipset (device id: 2531), you might want to try agp_try_unsupported=1.
agp.h has 850 id as 2530 and 860 as 8532.
My 860 claims 2531 ... ...
Regards
Gene/
lspci -v: 00:00.0 Host bridge: Intel Corporation 82850 860 (Wombat) Chipset Host Bridge (MCH) (rev 04) Subsystem: Dell Computer Corporation: Unknown device 00d8 Flags: bus master, fast devsel, latency 0 Memory at e8000000 (32-bit, prefetchable) [size=128M] Capabilities: [a0] AGP version 2.0
00:01.0 PCI bridge: Intel Corporation 82850 850 (Tehama) Chipset AGP Bridge (rev 04) (prog-if 00 [Normal decode]) Flags: bus master, 66Mhz, fast devsel, latency 64 Bus: primary=00, secondary=01, subordinate=01, sec-latency=64 I/O behind bridge: 0000e000-0000efff Memory behind bridge: ff900000-ffafffff Prefetchable memory behind bridge: f0000000-f7ffffff
00:02.0 PCI bridge: Intel Corporation 82860 860 (Wombat) Chipset AGP Bridge (rev 04) (prog-if 00 [Normal decode])
etc.
On Wed, Nov 14, 2001 at 08:51:41PM +0100, Daniele Venzano wrote: > Your patch to add AGP support for i820 chipset doesn't work for me, if I > load agpgart module with agp_try_unsupported=1 I get: > > - > Linux agpgart interface v0.99 (c) Jeff Hartmann > agpgart: Maximum main memory to use for agp memory: 262M > agpgart: Trying generic Intel routines for device id: 2501 > ^^^^^^^^^^^^^ > agpgart: AGP aperture is 256M @ 0xd0000000 > - > > That device id is different from the corresponding line in apg.h:174 > #define PCI_DEVICE_ID_INTEL_820_0 0x2500 > > I tried to change that line in: > #define PCI_DEVICE_ID_INTEL_820_0 0x2501 > > And it worked! But I don't know why the id for your chip is different > from mine... > > My motherboard is an Asus P3C2000 with a P3 500 running kernel 2.4.14 > > - 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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