# SPDX-License-Identifier: GPL-2.0
menuconfig AGP
tristate "/dev/agpgart (AGP Support)"
depends on ALPHA || PARISC || PPC || X86
depends on PCI
help
AGP (Accelerated Graphics Port) is a bus system mainly used to
connect graphics cards to the rest of the system.
If you have an AGP system and you say Y here, it will be possible to
use the AGP features of your 3D rendering video card. This code acts
as a sort of "AGP driver" for the motherboard's chipset.
If you need more texture memory than you can get with the AGP GART
(theoretically up to 256 MB, but in practice usually 64 or 128 MB
due to kernel allocation issues), you could use PCI accesses
and have up to a couple gigs of texture space.
Note that this is the only means to have X/GLX use
write-combining with MTRR support on the AGP bus. Without it, OpenGL
direct rendering will be a lot slower but still faster than PIO.
To compile this driver as a module, choose M here: the
module will be called agpgart.
You should say Y here if you want to use GLX or DRI.
If unsure, say N.
config AGP_ALI
tristate "ALI chipset support"
depends on AGP && X86_32
help
This option gives you AGP support for the GLX component of
X on the following ALi chipsets. The supported chipsets
include M1541, M1621, M1631, M1632, M1641,M1647,and M1651.
For the ALi-chipset question, ALi suggests you refer to
<http://www.ali.com.tw/>.
The M1541 chipset can do AGP 1x and 2x, but note that there is an
acknowledged incompatibility with Matrox G200 cards. Due to
timing issues, this chipset cannot do AGP 2x with the G200.
This is a hardware limitation. AGP 1x seems to be fine, though.
config AGP_ATI
tristate "ATI chipset support"
depends on AGP && X86_32
help
This option gives you AGP support for the GLX component of
X on the ATI RadeonIGP family of chipsets.
config AGP_AMD
tristate "AMD Irongate, 761, and 762 chipset support"
depends on AGP && X86_32
help
This option gives you AGP support for the GLX component of
X on AMD Irongate, 761, and 762 chipsets.
config AGP_AMD64
tristate "AMD Opteron/Athlon64 on-CPU GART support"
depends on AGP && X86 && AMD_NB
help
This option gives you AGP support for the GLX component of
X using the on-CPU northbridge of the AMD Athlon64/Opteron CPUs.
You still need an external AGP bridge like the AMD 8151, VIA
K8T400M, SiS755. It may also support other AGP bridges when loaded
with agp_try_unsupported=1.
config AGP_INTEL
tristate "Intel 440LX/BX/GX, I8xx and E7x05 chipset support"
depends on AGP && X86
select INTEL_GTT
help
This option gives you AGP support for the GLX component of X
on Intel 440LX/BX/GX, 815, 820, 830, 840, 845, 850, 860, 875,
E7205 and E7505 chipsets and full support for the 810, 815, 830M,
845G, 852GM, 855GM, 865G and I915 integrated graphics chipsets.
config AGP_NVIDIA
tristate "NVIDIA nForce/nForce2 chipset support"
depends on AGP && X86_32
help
This option gives you AGP support for the GLX component of
X on NVIDIA chipsets including nForce and nForce2
config AGP_SIS
tristate "SiS chipset support"
depends on AGP && X86
help
This option gives you AGP support for the GLX component of
X on Silicon Integrated Systems [SiS] chipsets.
Note that 5591/5592 AGP chipsets are NOT supported.
config AGP_SWORKS
tristate "Serverworks LE/HE chipset support"
depends on AGP && X86_32
help
Say Y here to support the Serverworks AGP card. See
<http://www.serverworks.com/> for product descriptions and images.
config AGP_VIA
tristate "VIA chipset support"
depends on AGP && X86
help
This option gives you AGP support for the GLX component of
X on VIA MVP3/Apollo Pro chipsets.
config AGP_PARISC
tristate "HP Quicksilver AGP support"
depends on AGP && PARISC && 64BIT && IOMMU_SBA
help
This option gives you AGP GART support for the HP Quicksilver
AGP bus adapter on HP PA-RISC machines (Ok, just on the C8000
workstation...)
config AGP_ALPHA_CORE
tristate "Alpha AGP support"
depends on AGP && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL)
default AGP
config AGP_UNINORTH
tristate "Apple UniNorth & U3 AGP support"
depends on AGP && PPC_PMAC
help
This option gives you AGP support for Apple machines with a
UniNorth or U3 (Apple G5) bridge.
config AGP_EFFICEON
tristate "Transmeta Efficeon support"
depends on AGP && X86_32
help
This option gives you AGP support for the Transmeta Efficeon
series processors with integrated northbridges.
config INTEL_GTT
tristate
depends on X86 && PCI
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