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- 26 Sep, 2006 3 commits
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Andi Kleen authored
Some buggy systems can machine check when config space accesses happen for some non existent devices. i386/x86-64 do some early device scans that might trigger this. Allow pci=noearly to disable this. Also when type 1 is disabling also don't do any early accesses which are always type1. This moves the pci= configuration parsing to be a early parameter. I don't think this can break anything because it only changes a single global that is only used by PCI. Cc: gregkh@suse.de Cc: Trammell Hudson <hudson@osresearch.net> Signed-off-by: Andi Kleen <ak@suse.de>
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Aaron Durbin authored
Patch inserts the GART region into the iomem resource map. The GART will then be visible within /proc/iomem. It will also allow for other users utilizing the GART to subreserve the region (agp or IOMMU). Signed-off-by: Aaron Durbin <adurbin@google.com> Signed-off-by: Andi Kleen <ak@suse.de>
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Adam Henley authored
A few trivial spelling and grammar mistakes picked up in "arch/x86_64/aperture.c", "arch/x86_64/crash.c" and "arch/x86_64/apic.c". I think all are correct fixes but am ever aware of my fallibility :o) This is my first patch submission so all feedback is appreciated, esp. WRT CCing to Linus, Andi and trivial@kernel.org, is this correct? And which is the most appropriate kernel version to diff against? If any. Should apply cleanly to 2.6.18-rc1 Signed-off-by: Adam Henley <adamazing@gmail.com> Signed-off-by: Andi Kleen <ak@suse.de> - adam
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- 30 Jun, 2006 1 commit
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Jörn Engel authored
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
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- 26 Jun, 2006 3 commits
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Jon Mason authored
swiotlb relies on the gart specific iommu_aperture variable to know if we discovered a hardware IOMMU before swiotlb initialization. Introduce iommu_detected to do the same thing, but in a HW IOMMU neutral manner, in preparation for adding the Calgary HW IOMMU. Signed-Off-By: Muli Ben-Yehuda <muli@il.ibm.com> Signed-Off-By: Jon Mason <jdmason@us.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Andi Kleen authored
Early development of x86-64 Linux was in CVS, but that hasn't been the case for a long time now. Remove the obsolete $Id$s. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Andi Kleen authored
- Factor out the duplicated access/cache code into a single file * Shared between i386/x86-64. - Share flush code between AGP and IOMMU * Fix a bug: AGP didn't wait for end of flush before - Drop 8 northbridges limit and allocate dynamically - Add lock to serialize AGP and IOMMU GART flushes - Add PCI ID for next AMD northbridge - Random related cleanups The old K8 NUMA discovery code is unchanged. New systems should all use SRAT for this. Cc: "Navin Boppuri" <navin.boppuri@newisys.com> Cc: Dave Jones <davej@redhat.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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- 09 Apr, 2006 1 commit
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Arjan van de Ven authored
Rename e820_mapped to e820_any_mapped since it tests if any part of the range is mapped according to the type. Later steps will introduce e820_all_mapped which will check if the entire range is mapped with the type. Both have their merit. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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- 25 Mar, 2006 2 commits
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Navin Boppuri authored
arch/x86_64/kernel/aperture.c: The search for the AGP bridge has been extended to search for all the 256 buses instead of the first 32. This is required since on a some systems, the bridge may be located on a bus much farther than the first 32. By searching all 256 buses, we guarantee that the search succeeds on such systems. arch/x86_64/kernel/pci-gart.c: The search for the Northbridge is not limited to just bus 0 anymore. This is required because on certain systems, we may not find one on bus 0. Signed-off-by: Navin Boppuri <navin.boppuri@newisys.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jon Mason authored
free_bootmem_node expects a physical address to be passed in, but __alloc_bootmem_node returns a virtual one. That address needs to be translated to physical. Signed-off-by: Jon Mason <jdmason@us.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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- 26 Feb, 2006 1 commit
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Jon Mason authored
In previous versions of pci-gart.c, no_iommu was used to determine if IOMMU was disabled in the GART DMA mapping functions. This changed in 2.6.16 and now gart_xxx() functions are only called if gart is enabled. Therefore, uses of no_iommu in the GART code are no longer necessary and can be removed. Also, it removes double deceleration of no_iommu and force_iommu in pci.h and proto.h, by removing the deceleration in pci.h. Lastly, end_pfn off by one error. Tested (along with patch 1/2) on dual opteron with gart enabled, iommu=soft, and iommu=off. Signed-off-by: Jon Mason <jdmason@us.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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- 12 Jan, 2006 1 commit
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Andi Kleen authored
Fix off by one when checking if the machine has enougn memory to need IOMMU This caused the IOMMUs to be needlessly enabled for mem=4G Based on a patch from Jon Mason Signed-off-by: jdmason@us.ibm.com Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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- 15 Nov, 2005 1 commit
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Andi Kleen authored
Fix arch/x86_64/kernel/aperture.c: In function #iommu_hole_init#: arch/x86_64/kernel/aperture.c:199: warning: #aper_order# may be used uninitialized in this function Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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- 12 Sep, 2005 1 commit
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Andi Kleen authored
No-one needs it then Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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- 23 Jun, 2005 1 commit
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Matt Tolentino authored
This patch pulls out all remaining direct references to contig_page_data from arch/x86-64, thus saving an ifdef in one case. Signed-off-by: Matt Tolentino <matthew.e.tolentino@intel.com> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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- 08 Jun, 2005 1 commit
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Andrew Morton authored
Martin Bligh determined that this patch is causing his test box to not boot. Revert. Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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- 16 Apr, 2005 2 commits
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Andi Kleen authored
This might save memory on some Opteron systems without AGP bridge. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Linus Torvalds authored
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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