freebsd-skq/sys/dev/agp
jhb fbb6062925 Fix support for 256 MB aperture sizes on chipsets such as the 845 and
865.  The APSIZE register has a variable-sized field of enabled bits.
To figure out how many bits a specific host bridge supports, write the
maximum width and see how many bits are set in the hardware.  We then
use this mask for setting and getting the aperture size.  Prior to this,
the agp(4) driver would treat an aperture size of 256 MB as 128 MB and
would not allocate enough physical memory for the GART as a result.

MFC after:	3 days
Sponsored by:	The Weather Channel
Approved by:	re (rwatson)
2003-05-27 20:13:44 +00:00
..
agp_ali.c - Express hard dependencies on bus (pci, isa, pccard) and 2003-04-15 06:37:30 +00:00
agp_amd.c - Express hard dependencies on bus (pci, isa, pccard) and 2003-04-15 06:37:30 +00:00
agp_i810.c - Express hard dependencies on bus (pci, isa, pccard) and 2003-04-15 06:37:30 +00:00
agp_if.m Fix typo. 2003-04-07 10:06:48 +00:00
agp_intel.c Fix support for 256 MB aperture sizes on chipsets such as the 845 and 2003-05-27 20:13:44 +00:00
agp_sis.c - Express hard dependencies on bus (pci, isa, pccard) and 2003-04-15 06:37:30 +00:00
agp_via.c - Express hard dependencies on bus (pci, isa, pccard) and 2003-04-15 06:37:30 +00:00
agp.c - Add vm_paddr_t, a physical address type. This is required for systems 2003-03-25 00:07:06 +00:00
agppriv.h Add support for Intel's i810 chipset with integrated graphics. An 2000-07-12 10:13:07 +00:00
agpreg.h Add support for the Intel 865 chipset. 2003-05-27 18:23:56 +00:00
agpvar.h Allow retrieval of the virtual address of the AGP aperture 2001-12-19 08:54:29 +00:00