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* x86, um: ... and asm-x86 moveAl Viro2008-10-23
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* x86: rename iommu_num_pages function to iommu_nr_pagesJoerg Roedel2008-10-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | This series of patches re-introduces the iommu_num_pages function so that it can be used by each architecture specific IOMMU implementations. The series also changes IOMMU implementations for X86, Alpha, PowerPC and UltraSparc. The other implementations are not yet changed because the modifications required are not obvious and I can't test them on real hardware. This patch: This is a preparation patch for introducing a generic iommu_num_pages function. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Muli Ben-Yehuda <muli@il.ibm.com> Cc: Dave Airlie <airlied@linux.ie> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
*-. Merge branches 'core/iommu', 'x86/amd-iommu' and 'x86/iommu' into ↵Ingo Molnar2008-10-10
|\ \ | | | | | | | | | | | | | | | | | | | | | x86-v28-for-linus-phase3-B Conflicts: arch/x86/kernel/pci-gart_64.c include/asm-x86/dma-mapping.h
| | * iommu: remove fullflush and nofullflush in IOMMU generic optionFUJITA Tomonori2008-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch against tip/x86/iommu virtually reverts 2842e5bf3115193f05dc9dac20f940e7abf44c1a. But just reverting the commit breaks AMD IOMMU so this patch also includes some fixes. The above commit adds new two options to x86 IOMMU generic kernel boot options, fullflush and nofullflush. But such change that affects all the IOMMUs needs more discussion (all IOMMU parties need the chance to discuss it): http://lkml.org/lkml/2008/9/19/106 Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * x86: move GART TLB flushing options to generic codeJoerg Roedel2008-09-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The GART currently implements the iommu=[no]fullflush command line parameters which influence its IO/TLB flushing strategy. This patch makes these parameters generic so that they can be used by the AMD IOMMU too. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * x86: blacklist DMAR on Intel G31/G33 chipsetsDavid Woodhouse2008-09-05
| |/ | | | | | | | | | | | | | | | | | | | | | | | | Some BIOSes (the Intel DG33BU, for example) wrongly claim to have DMAR when they don't. Avoid the resulting crashes when it doesn't work as expected. I'd still be grateful if someone could test it on a DG33BU with the old BIOS though, since I've killed mine. I tested the DMI version, but not this one. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | Merge branch 'x86/header-guards' into x86-v28-for-linus-phase1Ingo Molnar2008-10-06
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | Conflicts: include/asm-x86/dma-mapping.h include/asm-x86/gpio.h include/asm-x86/idle.h include/asm-x86/kvm_host.h include/asm-x86/namei.h include/asm-x86/uaccess.h Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: consolidate header guardsVegard Nossum2008-07-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is the result of an automatic script that consolidates the format of all the headers in include/asm-x86/. The format: 1. No leading underscore. Names with leading underscores are reserved. 2. Pathname components are separated by two underscores. So we can distinguish between mm_types.h and mm/types.h. 3. Everything except letters and numbers are turned into single underscores. Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
* | generic, x86: fix add iommu_num_pages helper functionFUJITA Tomonori2008-07-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This IOMMU helper function doesn't work for some architectures: http://marc.info/?l=linux-kernel&m=121699304403202&w=2 It also breaks POWER and SPARC builds: http://marc.info/?l=linux-kernel&m=121730388001890&w=2 Currently, only x86 IOMMUs use this so let's move it to x86 for now. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | x86 calgary: fix handling of devices that aren't behind the CalgaryAlexis Bruemmer2008-07-26
|/ | | | | | | | | | | | | | | | | | | The calgary code can give drivers addresses above 4GB which is very bad for hardware that is only 32bit DMA addressable. With this patch, the calgary code sets the global dma_ops to swiotlb or nommu properly, and the dma_ops of devices behind the Calgary/CalIOC2 to calgary_dma_ops. So the calgary code can handle devices safely that aren't behind the Calgary/CalIOC2. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Alexis Bruemmer <alexisb@us.ibm.com> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Muli Ben-Yehuda <muli@il.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* x86: remove ifdef CONFIG_GART_IOMMU in pci-dma.cFUJITA Tomonori2008-07-11
| | | | | | | | | | | | | | | | Our way to handle gart_* functions for CONFIG_GART_IOMMU and !CONFIG_GART_IOMMU cases is inconsistent. We have some dummy gart_* functions in !CONFIG_GART_IOMMU case and also use ifdef CONFIG_GART_IOMMU tricks in pci-dma.c to call some gart_* functions in only CONFIG_GART_IOMMU case. This patch removes ifdef CONFIG_GART_IOMMU in pci-dma.c and always use dummy gart_* functions in iommu.h. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86: clean up iommu.h and gart.hFUJITA Tomonori2008-07-10
| | | | | | | | | | | | | | | This remove lots of duplications in iommu.h and gart.h. The end result of this patch is: - iommu.h is a header file for everyone related with IOMMUs. - gart.h is the private header file. Only pci-gart_64.c and its friends include it. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: fujita.tomonori@lab.ntt.co.jp Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86, iommu: replace CONFIG_IOMMU with CONFIG_GART_IOMMU in iommu.hFUJITA Tomonori2008-07-09
| | | | | | | | Hmm, looks like it would be nice to have more cleanups of iommu.h and gart.h. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x86 gart: rename iommu.h to gart.hJoerg Roedel2007-10-29
| | | | | | | | | | | This patch renames the include file asm-x86/iommu.h to asm-x86/gart.h to make clear to which IOMMU implementation it belongs. The patch also adds "GART" to the Kconfig line. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Acked-by: Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* i386/x86_64: move headers to include/asm-x86Thomas Gleixner2007-10-11
Move the headers to include/asm-x86 and fixup the header install make rules Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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