freebsd-dev/sys/dev/agp
Eric Anholt 30e14d656c Add support for 945G/GM AGP chipsets.
The key problem was that the aperture size detection using the MSAC bit
doesn't work -- the bit appears to be set even when it shouldn't be.  Linux
takes a different approach, testing for a bit of the GMADR (PCIR_BAR(2)) being
set.  However, as I don't think that's a safe way to test aperture size, we
just allocate the resource and check its size.  This also pointed out that
agp_generic_attach hadn't been allocating our aperture resource, which may
have caused problems in some cases.

Also corrected is a minor copy-and-pasteo in an error case.

PR:		kern/103079
Submitted by:	mnag
Tested on:	i945GM, i915GM
MFC after:	2 weeks
2006-09-27 06:38:54 +00:00
..
agp_ali.c Change the various AGP drivers that attach to the Host-PCI bridge device to 2005-12-20 21:12:26 +00:00
agp_amd64.c Use aperture base address from north bridge. Some BIOS does not encode 2006-08-21 19:10:58 +00:00
agp_amd.c Change the various AGP drivers that attach to the Host-PCI bridge device to 2005-12-20 21:12:26 +00:00
agp_ati.c Add support for another ATI IGP 340M (RS200M) AGP bridge. 2006-09-01 02:22:17 +00:00
agp_i810.c Add support for 945G/GM AGP chipsets. 2006-09-27 06:38:54 +00:00
agp_if.m /* -> /*- for license, minor formatting changes 2005-01-07 02:29:27 +00:00
agp_intel.c Add support for the Intel E7205 chipset. 2006-02-17 01:40:46 +00:00
agp_nvidia.c Change the various AGP drivers that attach to the Host-PCI bridge device to 2005-12-20 21:12:26 +00:00
agp_sis.c Move SiS 760 to where it belongs. 2006-05-30 18:41:26 +00:00
agp_via.c Change the various AGP drivers that attach to the Host-PCI bridge device to 2005-12-20 21:12:26 +00:00
agp.c Explicitly set v3 mode only when it is requested. Don't bother otherwise. 2006-08-11 19:16:50 +00:00
agppriv.h Do the dreaded s/dev_t/struct cdev */ 2004-06-16 09:47:26 +00:00
agpreg.h - Use PCIR_BAR() macro for the BAR for the aperture. 2005-12-20 22:45:24 +00:00
agpvar.h Don't map the AGP aperture into contiguous KVA. The various graphics 2005-12-20 20:05:21 +00:00