mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 04:34:11 +08:00
0e152cd7c1
de957628ce changed setting of the
x86_init.iommu.iommu_init function ptr only when GART IOMMU is
found.
One side effect of it is that num_k8_northbridges
is not initialized anymore if not explicitly
called. This resulted in uninitialized pointers in
<arch/x86/kernel/cpu/intel_cacheinfo.c:amd_calc_l3_indices()>,
for example, which uses the num_k8_northbridges thing through
node_to_k8_nb_misc().
Fix that through an initcall that runs right after the PCI
subsystem and does all the scanning. Then, remove initialization
in gart_iommu_init() which is a rootfs_initcall and we're
running before that.
What is more, since num_k8_northbridges is being used in other
places beside GART IOMMU, include it whenever we add AMD CPU
support. The previous dependency chain in kconfig contained
K8_NB depends on AGP_AMD64|GART_IOMMU
which was clearly incorrect. The more natural way in terms of
hardware dependency should be
AGP_AMD64|GART_IOMMU depends on K8_NB depends on CPU_SUP_AMD &&
PCI. Make it so Number One!
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Joerg Roedel <joerg.roedel@amd.com>
LKML-Reference: <20100312144303.GA29262@aftab>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Tested-by: Joerg Roedel <joerg.roedel@amd.com>
158 lines
5.1 KiB
Plaintext
158 lines
5.1 KiB
Plaintext
menuconfig AGP
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tristate "/dev/agpgart (AGP Support)"
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depends on ALPHA || IA64 || PARISC || PPC || X86
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depends on PCI
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---help---
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AGP (Accelerated Graphics Port) is a bus system mainly used to
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connect graphics cards to the rest of the system.
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If you have an AGP system and you say Y here, it will be possible to
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use the AGP features of your 3D rendering video card. This code acts
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as a sort of "AGP driver" for the motherboard's chipset.
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If you need more texture memory than you can get with the AGP GART
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(theoretically up to 256 MB, but in practice usually 64 or 128 MB
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due to kernel allocation issues), you could use PCI accesses
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and have up to a couple gigs of texture space.
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Note that this is the only means to have X/GLX use
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write-combining with MTRR support on the AGP bus. Without it, OpenGL
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direct rendering will be a lot slower but still faster than PIO.
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To compile this driver as a module, choose M here: the
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module will be called agpgart.
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You should say Y here if you want to use GLX or DRI.
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If unsure, say N.
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config AGP_ALI
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tristate "ALI chipset support"
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depends on AGP && X86_32
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---help---
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This option gives you AGP support for the GLX component of
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X on the following ALi chipsets. The supported chipsets
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include M1541, M1621, M1631, M1632, M1641,M1647,and M1651.
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For the ALi-chipset question, ALi suggests you refer to
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<http://www.ali.com.tw/eng/support/index.shtml>.
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The M1541 chipset can do AGP 1x and 2x, but note that there is an
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acknowledged incompatibility with Matrox G200 cards. Due to
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timing issues, this chipset cannot do AGP 2x with the G200.
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This is a hardware limitation. AGP 1x seems to be fine, though.
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config AGP_ATI
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tristate "ATI chipset support"
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depends on AGP && X86_32
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---help---
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This option gives you AGP support for the GLX component of
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X on the ATI RadeonIGP family of chipsets.
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config AGP_AMD
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tristate "AMD Irongate, 761, and 762 chipset support"
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depends on AGP && (X86_32 || ALPHA)
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help
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This option gives you AGP support for the GLX component of
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X on AMD Irongate, 761, and 762 chipsets.
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config AGP_AMD64
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tristate "AMD Opteron/Athlon64 on-CPU GART support"
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depends on AGP && X86 && K8_NB
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help
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This option gives you AGP support for the GLX component of
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X using the on-CPU northbridge of the AMD Athlon64/Opteron CPUs.
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You still need an external AGP bridge like the AMD 8151, VIA
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K8T400M, SiS755. It may also support other AGP bridges when loaded
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with agp_try_unsupported=1.
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config AGP_INTEL
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tristate "Intel 440LX/BX/GX, I8xx and E7x05 chipset support"
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depends on AGP && X86
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help
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This option gives you AGP support for the GLX component of X
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on Intel 440LX/BX/GX, 815, 820, 830, 840, 845, 850, 860, 875,
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E7205 and E7505 chipsets and full support for the 810, 815, 830M,
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845G, 852GM, 855GM, 865G and I915 integrated graphics chipsets.
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config AGP_NVIDIA
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tristate "NVIDIA nForce/nForce2 chipset support"
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depends on AGP && X86_32
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help
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This option gives you AGP support for the GLX component of
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X on NVIDIA chipsets including nForce and nForce2
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config AGP_SIS
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tristate "SiS chipset support"
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depends on AGP && X86
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help
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This option gives you AGP support for the GLX component of
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X on Silicon Integrated Systems [SiS] chipsets.
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Note that 5591/5592 AGP chipsets are NOT supported.
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config AGP_SWORKS
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tristate "Serverworks LE/HE chipset support"
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depends on AGP && X86_32
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help
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Say Y here to support the Serverworks AGP card. See
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<http://www.serverworks.com/> for product descriptions and images.
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config AGP_VIA
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tristate "VIA chipset support"
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depends on AGP && X86
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help
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This option gives you AGP support for the GLX component of
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X on VIA MVP3/Apollo Pro chipsets.
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config AGP_I460
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tristate "Intel 460GX chipset support"
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depends on AGP && (IA64_DIG || IA64_GENERIC)
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help
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This option gives you AGP GART support for the Intel 460GX chipset
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for IA64 processors.
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config AGP_HP_ZX1
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tristate "HP ZX1 chipset AGP support"
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depends on AGP && (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC)
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help
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This option gives you AGP GART support for the HP ZX1 chipset
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for IA64 processors.
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config AGP_PARISC
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tristate "HP Quicksilver AGP support"
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depends on AGP && PARISC && 64BIT
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help
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This option gives you AGP GART support for the HP Quicksilver
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AGP bus adapter on HP PA-RISC machines (Ok, just on the C8000
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workstation...)
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config AGP_ALPHA_CORE
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tristate "Alpha AGP support"
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depends on AGP && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL)
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default AGP
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config AGP_UNINORTH
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tristate "Apple UniNorth & U3 AGP support"
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depends on AGP && PPC_PMAC
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help
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This option gives you AGP support for Apple machines with a
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UniNorth or U3 (Apple G5) bridge.
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config AGP_EFFICEON
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tristate "Transmeta Efficeon support"
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depends on AGP && X86_32
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help
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This option gives you AGP support for the Transmeta Efficeon
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series processors with integrated northbridges.
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config AGP_SGI_TIOCA
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tristate "SGI TIO chipset AGP support"
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depends on AGP && (IA64_SGI_SN2 || IA64_GENERIC)
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help
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This option gives you AGP GART support for the SGI TIO chipset
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for IA64 processors.
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