- 25 11月, 2008 1 次提交
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由 Julia Lawall 提交于
Impact: fix theoretical option string parsing overflow Since bridge is unsigned, it would seem better to use simple_strtoul that simple_strtol. A simplified version of the semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r2@ long e; position p; @@ e = simple_strtol@p(...) @@ position p != r2.p; type T; T e; @@ e = - simple_strtol@p + simple_strtoul (...) // </smpl> Signed-off-by: NJulia Lawall <julia@diku.dk> Cc: muli@il.ibm.com Cc: jdmason@kudzu.us Cc: discuss@x86-64.org Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 17 10月, 2008 1 次提交
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由 Joerg Roedel 提交于
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: NMuli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 22 9月, 2008 1 次提交
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由 FUJITA Tomonori 提交于
x86 has set_bit_string() that does the exact same thing that set_bit_area() in lib/iommu-helper.c does. This patch exports set_bit_area() in lib/iommu-helper.c as iommu_area_reserve(), converts GART, Calgary, and AMD IOMMU to use it. Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: NJoerg Roedel <joerg.roedel@amd.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 14 9月, 2008 1 次提交
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由 FUJITA Tomonori 提交于
x86's common alloc_coherent (dma_alloc_coherent in dma-mapping.h) sets up the gfp flag according to the device dma_mask but Calgary doesn't need it because of virtual mappings. This patch avoids unnecessary low zone allocation. Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: NMuli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 22 8月, 2008 1 次提交
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由 Joerg Roedel 提交于
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Acked-by: NMuli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 21 8月, 2008 2 次提交
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由 Arjan van de Ven 提交于
Use WARN() instead of a printk+WARN_ON() pair; this way the message becomes part of the warning section for better reporting/collection. This also allowed the folding of some if()'s into the WARN() Signed-off-by: NArjan van de Ven <arjan@linux.intel.com> Cc: akpm@linux-foundation.org Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 David Howells 提交于
Fix an integer comparison always false warning in the PCI Calgary 64 driver. A u8 is being compared to something that's 512 by default, resulting in the following warning: arch/x86/kernel/pci-calgary_64.c:1285: warning: comparison is always false due to limited range of data type This was introduced by patch b34e90b8. Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 18 8月, 2008 1 次提交
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由 Marcin Slusarz 提交于
WARNING: vmlinux.o(.text+0x27032): Section mismatch in reference from the function get_tce_space_from_tar() to the function .init.text:calgary_bus_has_devices() The function get_tce_space_from_tar() references the function __init calgary_bus_has_devices(). This is often because get_tce_space_from_tar lacks a __init annotation or the annotation of calgary_bus_has_devices is wrong. get_tce_space_from_tar is called only from __init function (calgary_init) and calls __init function (calgary_bus_has_devices). So annotate it properly. Signed-off-by: NMarcin Slusarz <marcin.slusarz@gmail.com> Cc: Chandru Siddalingappa <chandru@in.ibm.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 12 8月, 2008 1 次提交
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由 Randy Dunlap 提交于
Fix function declaration: linux-next-20080807/arch/x86/kernel/pci-calgary_64.c:1353:36: warning: non-ANSI function declaration of function 'get_tce_space_from_tar' Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Acked-by: NAcked-by: Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 27 7月, 2008 2 次提交
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由 Alexis Bruemmer 提交于
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: NAlexis Bruemmer <alexisb@us.ibm.com> Signed-off-by: NFUJITA 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: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 FUJITA Tomonori 提交于
Add per-device dma_mapping_ops support for CONFIG_X86_64 as POWER architecture does: This enables us to cleanly fix the Calgary IOMMU issue that some devices are not behind the IOMMU (http://lkml.org/lkml/2008/5/8/423). I think that per-device dma_mapping_ops support would be also helpful for KVM people to support PCI passthrough but Andi thinks that this makes it difficult to support the PCI passthrough (see the above thread). So I CC'ed this to KVM camp. Comments are appreciated. A pointer to dma_mapping_ops to struct dev_archdata is added. If the pointer is non NULL, DMA operations in asm/dma-mapping.h use it. If it's NULL, the system-wide dma_ops pointer is used as before. If it's useful for KVM people, I plan to implement a mechanism to register a hook called when a new pci (or dma capable) device is created (it works with hot plugging). It enables IOMMUs to set up an appropriate dma_mapping_ops per device. The major obstacle is that dma_mapping_error doesn't take a pointer to the device unlike other DMA operations. So x86 can't have dma_mapping_ops per device. Note all the POWER IOMMUs use the same dma_mapping_error function so this is not a problem for POWER but x86 IOMMUs use different dma_mapping_error functions. The first patch adds the device argument to dma_mapping_error. The patch is trivial but large since it touches lots of drivers and dma-mapping.h in all the architecture. This patch: dma_mapping_error() doesn't take a pointer to the device unlike other DMA operations. So we can't have dma_mapping_ops per device. Note that POWER already has dma_mapping_ops per device but all the POWER IOMMUs use the same dma_mapping_error function. x86 IOMMUs use device argument. [akpm@linux-foundation.org: fix sge] [akpm@linux-foundation.org: fix svc_rdma] [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: fix bnx2x] [akpm@linux-foundation.org: fix s2io] [akpm@linux-foundation.org: fix pasemi_mac] [akpm@linux-foundation.org: fix sdhci] [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: fix sparc] [akpm@linux-foundation.org: fix ibmvscsi] Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Muli Ben-Yehuda <muli@il.ibm.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Avi Kivity <avi@qumranet.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 26 7月, 2008 1 次提交
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由 Chandru 提交于
kdump kernel fails to boot with calgary iommu and aacraid driver on a x366 box. The ongoing dma's of aacraid from the first kernel continue to exist until the driver is loaded in the kdump kernel. Calgary is initialized prior to aacraid and creation of new tce tables causes wrong dma's to occur. Here we try to get the tce tables of the first kernel in kdump kernel and use them. While in the kdump kernel we do not allocate new tce tables but instead read the base address register contents of calgary iommu and use the tables that the registers point to. With these changes the kdump kernel and hence aacraid now boots normally. Signed-off-by: NChandru Siddalingappa <chandru@in.ibm.com> Acked-by: NMuli Ben-Yehuda <muli@il.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 11 7月, 2008 1 次提交
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由 FUJITA Tomonori 提交于
gart.h has only GART-specific stuff. Only GART code needs it. Other IOMMU stuff should include iommu.h instead of gart.h. Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: NMuli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 08 7月, 2008 1 次提交
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由 Yinghai Lu 提交于
and use max_pfn directly. Signed-off-by: NYinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 26 4月, 2008 1 次提交
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由 Akinobu Mita 提交于
get_bios_ebda() exists in asm/rio.h and asm/bios_ebda.h. This patch removes the one in asm/rio.h. Signed-off-by: NAkinobu Mita <akinobu.mita@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 21 4月, 2008 1 次提交
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由 Greg Kroah-Hartman 提交于
This isn't needed, we can just walk the devices in bus order with no problems at all, as we really want to remove pci_get_device_reverse from the kernel tree. Acked-by: NMuli Ben-Yehuda <muli@il.ibm.com> Cc: Jon Mason <jdmason@kudzu.us> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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- 20 4月, 2008 1 次提交
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由 Ingo Molnar 提交于
Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 06 2月, 2008 1 次提交
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由 FUJITA Tomonori 提交于
This patch converts calgary IOMMU to use the IOMMU helper functions. The IOMMU doesn't allocate a memory area spanning LLD's segment boundary anymore. Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Jeff Garzik <jeff@garzik.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Muli Ben-Yehuda <mulix@mulix.org> Cc: Andi Kleen <ak@suse.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 02 2月, 2008 1 次提交
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由 Sam Ravnborg 提交于
Fix following warning: WARNING: arch/x86/kernel/built-in.o(.text+0x1eb41): Section mismatch in reference from the function calgary_handle_quirks() to the function .init.text:calgary_set_split_completion_timeout() calgary_handle_quirks() are only called at __init time (in calgary_init_one() via handle_quirks ops). So annotate this function and the sister function __init. Signed-off-by: NSam Ravnborg <sam@ravnborg.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 30 1月, 2008 2 次提交
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由 Lucas Woods 提交于
Signed-off-by: NLucas Woods <woodzy@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Adrian Bunk 提交于
"debugging" is a horrible name for a global variable - thankfully it can become static. Also put it out of __read_mostly so that gcc no longer has to emit it at all. Signed-off-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 30 10月, 2007 1 次提交
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由 Joerg Roedel 提交于
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: NJoerg Roedel <joerg.roedel@amd.com> Acked-by: NMuli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 23 10月, 2007 1 次提交
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由 Jens Axboe 提交于
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 18 10月, 2007 2 次提交
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由 Muli Ben-Yehuda 提交于
Now that we check for translation enabled/disabled based on the presence of the IOMMU translation table, we can get rid of translate_phb. Signed-off-by: NMuli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Muli Ben-Yehuda 提交于
The old check we used based on dev->bus->number is wrong for devices on CalIOC2. Instead look whether we have an IOMMU table for that bus - if not, translation is disabled. Thanks to Murillo Fernandes Bernardes <bernarde@br.ibm.com> for spotting, suggesting a fix and testing. Signed-off-by: NMuli Ben-Yehuda <muli@il.ibm.com> Acked-by: NMurillo Fernandes Bernardes <bernarde@br.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 16 10月, 2007 1 次提交
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由 Jens Axboe 提交于
Acked-by: NMuli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 11 10月, 2007 2 次提交
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由 Thomas Gleixner 提交于
Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Thomas Gleixner 提交于
Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 12 8月, 2007 1 次提交
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Current code assumed that devices were directly connected to a Calgary bridge, as it tried to get the iommu table directly from the parent bus controller. When we have another bridge between the Calgary/CalIOC2 bridge and the device we should look upwards until we get to the top (Calgary/CalIOC2 bridge), where the iommu table resides. Signed-off-by: NMurillo Fernandes Bernardes <mfb@br.ibm.com> Signed-off-by: NMuli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 22 7月, 2007 11 次提交
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由 Muli Ben-Yehuda 提交于
This patch introduces struct pci_sysdata to x86 and x86-64, and converts the existing two users (NUMA, Calgary) to use it. This lays the groundwork for having other users of sysdata, such as the PCI domains work. The Calgary bits are tested, the NUMA bits just look ok. Signed-off-by: NJeff Garzik <jeff@garzik.org> Signed-off-by: NMuli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Yinghai Lu 提交于
[akpm@linux-foundation.org: build fix] Signed-off-by: NYinghai Lu <yinghai.lu@sun.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Muli Ben-Yehuda <muli@il.ibm.com> Cc: Vivek Goyal <vgoyal@in.ibm.com> Cc: Dave Jones <davej@codemonkey.org.uk> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Muli Ben-Yehuda 提交于
After the bitmap changes we can get rid of the unlocked versions of calgary_unmap_sg and iommu_free. Fold __calgary_unmap_sg and __iommu_free into their calgary_unmap_sg and iommu_free, respectively. Signed-off-by: NMuli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Yinghai Lu 提交于
there function are called via dma_ops->.., so change them to static Signed-off-by: NYinghai Lu <yinghai.lu@sun.com> Signed-off-by: NMuli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Muli Ben-Yehuda 提交于
Currently the IOMMU table's lock protects both the bitmap and access to the hardware's TCE table. Access to the TCE table is synchronized through the bitmap; therefore, only hold the lock while modifying the bitmap. This gives a yummy 10-15% reduction in CPU utilization for netperf on a large SMP machine. Signed-off-by: NMuli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Muli Ben-Yehuda 提交于
No actual code was harmed in the production of this patch. Thanks to Andrew Morton <akpm@linux-foundation.org> for telling me about checkpatch.pl. Signed-off-by: NMuli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Muli Ben-Yehuda 提交于
Signed-off-by: NMuli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Muli Ben-Yehuda 提交于
Signed-off-by: NMuli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Muli Ben-Yehuda 提交于
Signed-off-by: NMuli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Guillaume Thouvenin 提交于
Cleanup unneeded macros used for register space address calculation. Now we are using the EBDA to find the space address. Signed-off-by: NGuillaume Thouvenin <guillaume.thouvenin@bull.net> Signed-off-by: NMuli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Muli Ben-Yehuda 提交于
This works around a bug where DMAs that have the same addresses as some MEM regions do not go through. Not clear yet if this is due to a mis-configuration or something deeper. [akpm@linux-foundation.org: coding style fixlet] Signed-off-by: NMuli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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