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* Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bklLinus Torvalds2010-10-221-6/+7
|\ | | | | | | | | | | | | | | | | | | | | | | | | * 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl: block: autoconvert trivial BKL users to private mutex drivers: autoconvert trivial BKL users to private mutex ipmi: autoconvert trivial BKL users to private mutex mac: autoconvert trivial BKL users to private mutex mtd: autoconvert trivial BKL users to private mutex scsi: autoconvert trivial BKL users to private mutex Fix up trivial conflicts (due to addition of private mutex right next to deletion of a version string) in drivers/char/pcmcia/cm40[04]0_cs.c
| * drivers: autoconvert trivial BKL users to private mutexArnd Bergmann2010-10-051-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All these files use the big kernel lock in a trivial way to serialize their private file operations, typically resulting from an earlier semi-automatic pushdown from VFS. None of these drivers appears to want to lock against other code, and they all use the BKL as the top-level lock in their file operations, meaning that there is no lock-order inversion problem. Consequently, we can remove the BKL completely, replacing it with a per-file mutex in every case. Using a scripted approach means we can avoid typos. These drivers do not seem to be under active maintainance from my brief investigation. Apologies to those maintainers that I have missed. file=$1 name=$2 if grep -q lock_kernel ${file} ; then if grep -q 'include.*linux.mutex.h' ${file} ; then sed -i '/include.*<linux\/smp_lock.h>/d' ${file} else sed -i 's/include.*<linux\/smp_lock.h>.*$/include <linux\/mutex.h>/g' ${file} fi sed -i ${file} \ -e "/^#include.*linux.mutex.h/,$ { 1,/^\(static\|int\|long\)/ { /^\(static\|int\|long\)/istatic DEFINE_MUTEX(${name}_mutex); } }" \ -e "s/\(un\)*lock_kernel\>[ ]*()/mutex_\1lock(\&${name}_mutex)/g" \ -e '/[ ]*cycle_kernel_lock();/d' else sed -i -e '/include.*\<smp_lock.h\>/d' ${file} \ -e '/cycle_kernel_lock()/d' fi Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* | Merge branch 'x86-iommu-for-linus' of ↵Linus Torvalds2010-10-211-1/+5
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, iommu: Update header comments with appropriate naming ia64, iommu: Add a dummy iommu_table.h file in IA64. x86, iommu: Fix IOMMU_INIT alignment rules x86, doc: Adding comments about .iommu_table and its neighbors. x86, iommu: Utilize the IOMMU_INIT macros functionality. x86, VT-d: Make Intel VT-d IOMMU use IOMMU_INIT_* macros. x86, GART/AMD-VI: Make AMD GART and IOMMU use IOMMU_INIT_* macros. x86, calgary: Make Calgary IOMMU use IOMMU_INIT_* macros. x86, xen-swiotlb: Make Xen-SWIOTLB use IOMMU_INIT_* macros. x86, swiotlb: Make SWIOTLB use IOMMU_INIT_* macros. x86, swiotlb: Simplify SWIOTLB pci_swiotlb_detect routine. x86, iommu: Add proper dependency sort routine (and sanity check). x86, iommu: Make all IOMMU's detection routines return a value. x86, iommu: Add IOMMU_INIT macros, .iommu_table section, and iommu_table_entry structure
| * | x86, VT-d: Make Intel VT-d IOMMU use IOMMU_INIT_* macros.Konrad Rzeszutek Wilk2010-08-261-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We utilize the IOMMU_INIT macros to create this dependency: [null] | [pci_xen_swiotlb_detect] | [pci_swiotlb_detect_override] | [pci_swiotlb_detect_4gb] | +-------+--------+---------------------+ / \ \ [detect_calgary] [gart_iommu_hole_init] [detect_intel_iommu] | [amd_iommu_detect] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> LKML-Reference: <1282845485-8991-10-git-send-email-konrad.wilk@oracle.com> CC: Fujita Tomonori <fujita.tomonori@lab.ntt.co.jp> CC: Jesse Barnes <jbarnes@virtuousgeek.org> CC: David Woodhouse <David.Woodhouse@intel.com> CC: Len Brown <len.brown@intel.com> CC: Chris Wright <chrisw@sous-sol.org> CC: Yinghai Lu <yinghai@kernel.org> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
| * | x86, iommu: Make all IOMMU's detection routines return a value.Konrad Rzeszutek Wilk2010-08-261-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We return 1 if the IOMMU has been detected. Zero or an error number if we failed to find it. This is in preperation of using the IOMMU_INIT so that we can detect whether an IOMMU is present. I have not tested this for regression on Calgary, nor on AMD Vi chipsets as I don't have that hardware. CC: Muli Ben-Yehuda <muli@il.ibm.com> CC: "Jon D. Mason" <jdmason@kudzu.us> CC: "Darrick J. Wong" <djwong@us.ibm.com> CC: Jesse Barnes <jbarnes@virtuousgeek.org> CC: David Woodhouse <David.Woodhouse@intel.com> CC: Chris Wright <chrisw@sous-sol.org> CC: Yinghai Lu <yinghai@kernel.org> CC: Joerg Roedel <joerg.roedel@amd.com> CC: H. Peter Anvin <hpa@zytor.com> CC: Fujita Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> LKML-Reference: <1282845485-8991-3-git-send-email-konrad.wilk@oracle.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
* | | Merge branch 'linus' into irq/coreIngo Molnar2010-10-201-0/+20
|\ \ \ | | | | | | | | | | | | | | | | | | | | Merge reason: update to almost-final-.36 Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * \ \ Merge branch 'meego-7093' into idle-releaseLen Brown2010-09-281-0/+20
| |\ \ \
| | * | | intel_idle: PCI quirk to prevent Lenovo Ideapad s10-3 boot hangLen Brown2010-09-241-0/+20
| | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the Lenovo Ideapad S10-3 is booted with HT enabled, it hits a boot hang in the intel_idle driver. This occurs when entering ATM-C4 for the first time, unless BM_STS is first cleared. acpi_idle doesn't see this because it first checks and clears BM_STS, but it would hit the same hang if that check were disabled. http://bugs.meego.com/show_bug.cgi?id=7093 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/634702 Signed-off-by: Len Brown <len.brown@intel.com>
* | | | x86: Speed up the irq_remapped check in hot pathesThomas Gleixner2010-10-121-7/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | irq_2_iommu is in struct irq_cfg, so we can do the irq_remapped check based on irq_cfg instead of going through a lookup function. That's especially interesting in the eoi_ioapic_irq() hotpath. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
* | | | intr_remap: Simplify the code furtherThomas Gleixner2010-10-121-84/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Having irq_2_iommu in struct irq_cfg allows further simplifications. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
* | | | intr_remap: Use irq_2_iommu in struct irq_cfgThomas Gleixner2010-10-121-36/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Switch the intr_remapping code to use the irq_2_iommu struct in irg_cfg. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
* | | | x86: Embedd irq_2_iommu into irq_cfgThomas Gleixner2010-10-121-7/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | That interrupt remapping code is x86 specific and tied to the io_apic code. No need for separate allocator functions in the interrupt remapping code. This allows to simplify the code and irq_2_iommu is small (13 bytes on 64bit) so it's not a real problem even if interrupt remapping is runtime disabled. If it's compile time disabled the impact is zero. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
* | | | pci: intr_remap: Remove unused functionsThomas Gleixner2010-10-121-47/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No users. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
* | | | pci: intr_remap: Use irq_dataThomas Gleixner2010-10-121-31/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No need to dereference irq_desc. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
* | | | pci: intr-remap: Free irte memory if SPARSE_IRQ=yThomas Gleixner2010-10-121-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With SPARSE_IRQ=y the irte descriptors are dynamically allocated, but not freed in free_irte(). That was ok as long as the sparse irq core was not freeing irq descriptors on destroy_irq(). Now we leak the irte descriptor. Free it in free_irte(). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
* | | | ht: Convert to new irq_chip functionsThomas Gleixner2010-10-121-14/+8
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu> Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
* | | | dmar: Convert to new irq chip functionsThomas Gleixner2010-10-121-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: David Woodhouse <dwmw2@infradead.org>
* | | | pci: Cleanup the irq_desc mess in msiThomas Gleixner2010-10-121-15/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Handing down irq_desc to msi just so that msi can access irq_desc.irq_data.msi_desc is a pretty stupid idea. The calling code can hand down a pointer to msi_desc so msi code does not need to know about the irq descriptor at all. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* | | | pci: Convert msi to new irq_chip functionsThomas Gleixner2010-10-121-7/+7
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Tony Luck <tony.luck@intel.com> Cc: Russell King <linux@arm.linux.org.uk>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2010-09-282-3/+4
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: PCI: fix pci_resource_alignment prototype
| * | | PCI: fix pci_resource_alignment prototypeCam Macdonell2010-09-092-3/+4
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the prototype for both pci_resource_alignment() and pci_sriov_resource_alignment(). Patch started as debugging effort from Cam Macdonell. Cc: Cam Macdonell <cam@cs.ualberta.ca> Cc: Avi Kivity <avi@redhat.com> [chrisw: add iov bits] Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* | | Merge git://git.infradead.org/iommu-2.6Linus Torvalds2010-09-271-0/+27
|\ \ \ | | | | | | | | | | | | | | | | | | | | * git://git.infradead.org/iommu-2.6: intel-iommu: Use symbolic values instead of magic numbers in Lenovo w/a intel-iommu: Abort IOMMU setup for igfx if BIOS gave no shadow GTT space
| * | | intel-iommu: Use symbolic values instead of magic numbers in Lenovo w/aAdam Jackson2010-09-211-2/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 9eecabcb9a924f1e11ba670365fd4babe423045c ("intel-iommu: Abort IOMMU setup for igfx if BIOS gave no shadow GTT space") uses a bunch of magic numbers. Provide #defines for those to make it look slightly saner. Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| * | | intel-iommu: Abort IOMMU setup for igfx if BIOS gave no shadow GTT spaceDavid Woodhouse2010-09-211-0/+17
| |/ / | | | | | | | | | | | | | | | Yet another BIOS bug; Lenovo this time (X201). Red Hat bug #593516. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* / / drivers/pci/intel-iommu.c: fix build with older gcc'sAndrew Morton2010-09-221-47/+43
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drivers/pci/intel-iommu.c: In function `__iommu_calculate_agaw': drivers/pci/intel-iommu.c:437: sorry, unimplemented: inlining failed in call to 'width_to_agaw': function body not available drivers/pci/intel-iommu.c:445: sorry, unimplemented: called from here Move the offending function (and its siblings) to top-of-file, remove the forward declaration. Addresses https://bugzilla.kernel.org/show_bug.cgi?id=17441 Reported-by: Martin Mokrejs <mmokrejs@ribosome.natur.cuni.cz> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'for-linus' of ↵Linus Torvalds2010-09-0718-236/+206
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: PCI: bus speed strings should be const PCI hotplug: Fix build with CONFIG_ACPI unset PCI: PCIe: Remove the port driver module exit routine PCI: PCIe: Move PCIe PME code to the pcie directory PCI: PCIe: Disable PCIe port services during port initialization PCI: PCIe: Ask BIOS for control of all native services at once ACPI/PCI: Negotiate _OSC control bits before requesting them ACPI/PCI: Do not preserve _OSC control bits returned by a query ACPI/PCI: Make acpi_pci_query_osc() return control bits ACPI/PCI: Reorder checks in acpi_pci_osc_control_set() PCI: PCIe: Introduce commad line switch for disabling port services PCI: PCIe AER: Introduce pci_aer_available() x86/PCI: only define pci_domain_nr if PCI and PCI_DOMAINS are set PCI: provide stub pci_domain_nr function for !CONFIG_PCI configs
| * PCI: bus speed strings should be constStephen Hemminger2010-08-311-1/+1
| | | | | | | | | | Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * PCI hotplug: Fix build with CONFIG_ACPI unsetRafael J. Wysocki2010-08-251-0/+4
| | | | | | | | | | | | | | | | One of the recent changes caused complilation of drivers/pci/hotplug/pciehp_core.c to fail. Fix this issue. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * PCI: PCIe: Remove the port driver module exit routineKenji Kaneshige2010-08-241-7/+0
| | | | | | | | | | | | | | | | | | The PCIe port driver's module exit routine is never used, so drop it. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Reviewed-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * PCI: PCIe: Move PCIe PME code to the pcie directoryRafael J. Wysocki2010-08-243-8/+3
| | | | | | | | | | | | | | | | | | The PCIe PME code only consists of one file, so it doesn't need to occupy its own directory. Move it to drivers/pci/pcie/pme.c and remove the contents of drivers/pci/pcie/pme . Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * PCI: PCIe: Disable PCIe port services during port initializationRafael J. Wysocki2010-08-241-3/+26
| | | | | | | | | | | | | | | | | | | | In principle PCIe port services may be enabled by the BIOS, so it's better to disable them during port initialization to avoid spurious events from being generated. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Reviewed-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * PCI: PCIe: Ask BIOS for control of all native services at onceRafael J. Wysocki2010-08-2415-221/+149
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After commit 852972acff8f10f3a15679be2059bb94916cba5d (ACPI: Disable ASPM if the platform won't provide _OSC control for PCIe) control of the PCIe Capability Structure is unconditionally requested by acpi_pci_root_add(), which in principle may cause problems to happen in two ways. First, the BIOS may refuse to give control of the PCIe Capability Structure if it is not asked for any of the _OSC features depending on it at the same time. Second, the BIOS may assume that control of the _OSC features depending on the PCIe Capability Structure will be requested in the future and may behave incorrectly if that doesn't happen. For this reason, control of the PCIe Capability Structure should always be requested along with control of any other _OSC features that may depend on it (ie. PCIe native PME, PCIe native hot-plug, PCIe AER). Rework the PCIe port driver so that (1) it checks which native PCIe port services can be enabled, according to the BIOS, and (2) it requests control of all these services simultaneously. In particular, this causes pcie_portdrv_probe() to fail if the BIOS refuses to grant control of the PCIe Capability Structure, which means that no native PCIe port services can be enabled for the PCIe Root Complex the given port belongs to. If that happens, ASPM is disabled to avoid problems with mishandling it by the part of the PCIe hierarchy for which control of the PCIe Capability Structure has not been received. Make it possible to override this behavior using 'pcie_ports=native' (use the PCIe native services regardless of the BIOS response to the control request), or 'pcie_ports=compat' (do not use the PCIe native services at all). Accordingly, rework the existing PCIe port service drivers so that they don't request control of the services directly. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * ACPI/PCI: Negotiate _OSC control bits before requesting them Rafael J. Wysocki2010-08-243-7/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is possible that the BIOS will not grant control of all _OSC features requested via acpi_pci_osc_control_set(), so it is recommended to negotiate the final set of _OSC features with the query flag set before calling _OSC to request control of these features. To implement it, rework acpi_pci_osc_control_set() so that the caller can specify the mask of _OSC control bits to negotiate and the mask of _OSC control bits that are absolutely necessary to it. Then, acpi_pci_osc_control_set() will run _OSC queries in a loop until the mask of _OSC control bits returned by the BIOS is equal to the mask passed to it. Also, before running the _OSC request acpi_pci_osc_control_set() will check if the caller's required control bits are present in the final mask. Using this mechanism we will be able to avoid situations in which the BIOS doesn't grant control of certain _OSC features, because they depend on some other _OSC features that have not been requested. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * PCI: PCIe: Introduce commad line switch for disabling port servicesRafael J. Wysocki2010-08-243-0/+20
| | | | | | | | | | | | | | | | | | Introduce kernel command line switch pcie_ports= allowing one to disable all of the native PCIe port services, so that PCIe ports are treated like PCI-to-PCI bridges. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * PCI: PCIe AER: Introduce pci_aer_available()Rafael J. Wysocki2010-08-242-3/+8
| | | | | | | | | | | | | | | | Introduce a function allowing the caller to check whether to try to enable PCIe AER. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* | Merge git://git.infradead.org/iommu-2.6Linus Torvalds2010-08-152-1/+21
|\ \ | |/ |/| | | | | | | * git://git.infradead.org/iommu-2.6: intel-iommu: Fix 32-bit build warning with __cmpxchg() intr-remap: allow disabling source id checking
| * intel-iommu: Fix 32-bit build warning with __cmpxchg()David Woodhouse2010-08-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | drivers/pci/intel-iommu.c: In function 'dma_pte_addr': drivers/pci/intel-iommu.c:239: warning: passing argument 1 of '__cmpxchg64' from incompatible pointer type It seems that __cmpxchg64() now cares about the type of its pointer argument, so give it a (uint64_t *) instead of a pointer to a structure which contains only that. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| * intr-remap: allow disabling source id checkingChris Wright2010-08-101-0/+20
| | | | | | | | | | | | | | | | | | | | | | Allow disabling the source id checking while programming the interrupt remap table entry. Useful for debugging or working around the broken source id checks on some platforms. Signed-off-by: Chris Wright <chrisw@redhat.com> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Acked-by: Weidong Han <weidong.han@intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | Merge branch 'next' of ↵Linus Torvalds2010-08-091-0/+28
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: (30 commits) DMAENGINE: at_hdmac: locking fixlet DMAENGINE: pch_dma: kill another usage of __raw_{read|write}l dma: dmatest: fix potential sign bug ioat2: catch and recover from broken vtd configurations v6 DMAENGINE: add runtime slave control to COH 901 318 v3 DMAENGINE: add runtime slave config to DMA40 v3 DMAENGINE: generic slave channel control v3 dmaengine: Driver for Topcliff PCH DMA controller intel_mid: Add Mrst & Mfld DMA Drivers drivers/dma: Eliminate a NULL pointer dereference dma/timb_dma: compile warning on 32 bit DMAENGINE: ste_dma40: support older silicon DMAENGINE: ste_dma40: support disabling physical channels DMAENGINE: ste_dma40: no disabled phy channels on ux500 DMAENGINE: ste_dma40: fix suspend bug DMAENGINE: ste_dma40: add DB8500 memcpy channels DMAENGINE: ste_dma40: no flow control on memcpy DMAENGINE: ste_dma40: arch updates for LCLA and LCPA DMAENGINE: ste_dma40: allocate LCLA dynamically DMAENGINE: ste_dma40: no premature stop ... Fix up trivial conflicts in arch/arm/mach-ux500/devices-db8500.c
| * | ioat2: catch and recover from broken vtd configurations v6Dan Williams2010-08-041-0/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On some platforms (MacPro3,1) the BIOS assigns the ioatdma device to the incorrect iommu causing faults when the driver initializes. Add a quirk to catch this misconfiguration and try falling back to untranslated operation (which works in the MacPro3,1 case). Assuming there are other platforms with misconfigured iommus teach the ioatdma driver to treat initialization failures as non-fatal (just fail the driver load and emit a warning instead of triggering a BUG_ON). This can be classified as a boot regression since 2.6.32 on affected platforms since the ioatdma module did not autoload prior to that kernel. Cc: <stable@kernel.org> Acked-by: David Woodhouse <David.Woodhouse@intel.com> Reported-by: Chris Li <lkml@chrisli.org> Tested-by: Chris Li <lkml@chrisli.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | | Merge branch 'acpica' of ↵Linus Torvalds2010-08-071-4/+2
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (27 commits) ACPI / ACPICA: Simplify acpi_ev_initialize_gpe_block() ACPI / ACPICA: Fail acpi_gpe_wakeup() if ACPI_GPE_CAN_WAKE is unset ACPI / ACPICA: Do not execute _PRW methods during initialization ACPI: Fix bogus GPE test in acpi_bus_set_run_wake_flags() ACPICA: Update version to 20100702 ACPICA: Fix for Alias references within Package objects ACPICA: Fix lint warning for 64-bit constant ACPICA: Remove obsolete GPE function ACPICA: Update debug output components ACPICA: Add support for WDDT - Watchdog Descriptor Table ACPICA: Drop acpi_set_gpe ACPICA: Use low-level GPE enable during GPE block initialization ACPI / EC: Do not use acpi_set_gpe ACPI / EC: Drop suspend and resume routines ACPICA: Remove wakeup GPE reference counting which is not used ACPICA: Introduce acpi_gpe_wakeup() ACPICA: Rename acpi_hw_gpe_register_bit ACPICA: Update version to 20100528 ACPICA: Add signatures for undefined tables: ATKG, GSCI, IEIT ACPICA: Optimization: Reduce the number of namespace walks ...
| * | | ACPICA: Remove wakeup GPE reference counting which is not usedRafael J. Wysocki2010-07-061-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After the previous patch that introduced acpi_gpe_wakeup() and modified the ACPI suspend and wakeup code to use it, the third argument of acpi_{enable|disable}_gpe() and the GPE wakeup reference counter are not necessary any more. Remove them and modify all of the users of acpi_{enable|disable}_gpe() accordingly. Also drop GPE type constants that aren't used any more. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | | | Merge branch 'linux-next' of ↵Linus Torvalds2010-08-0621-61/+391
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (30 commits) PCI: update for owner removal from struct device_attribute PCI: Fix warnings when CONFIG_DMI unset PCI: Do not run NVidia quirks related to MSI with MSI disabled x86/PCI: use for_each_pci_dev() PCI: use for_each_pci_dev() PCI: MSI: Restore read_msi_msg_desc(); add get_cached_msi_msg_desc() PCI: export SMBIOS provided firmware instance and label to sysfs PCI: Allow read/write access to sysfs I/O port resources x86/PCI: use host bridge _CRS info on ASRock ALiveSATA2-GLAN PCI: remove unused HAVE_ARCH_PCI_SET_DMA_MAX_SEGMENT_{SIZE|BOUNDARY} PCI: disable mmio during bar sizing PCI: MSI: Remove unsafe and unnecessary hardware access PCI: Default PCIe ASPM control to on and require !EMBEDDED to disable PCI: kernel oops on access to pci proc file while hot-removal PCI: pci-sysfs: remove casts from void* ACPI: Disable ASPM if the platform won't provide _OSC control for PCIe PCI hotplug: make sure child bridges are enabled at hotplug time PCI hotplug: shpchp: Removed check for hotplug of display devices PCI hotplug: pciehp: Fixed return value sign for pciehp_unconfigure_device PCI: Don't enable aspm before drivers have had a chance to veto it ...
| * | | | PCI: update for owner removal from struct device_attributeStephen Rothwell2010-08-041-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes the build. Acked-by: Guenter Roeck <guenter.roeck@ericsson.com> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | | | PCI: Fix warnings when CONFIG_DMI unsetNarendra K2010-08-021-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the below warnings introduced by the commit 911e1c9b05a8e3559a7aa89083930700a0b9e7ee ("PCI: export SMBIOS provided firmware instance and label to sysfs"). drivers/pci/pci.h: In function ‘pci_create_firmware_label_files’: drivers/pci/pci.h:16: warning: ‘return’ with a value, in function returning void drivers/pci/pci.h: In function ‘pci_remove_firmware_label_files’: drivers/pci/pci.h:18: warning: ‘return’ with a value, in function returning void The warnings are seen because of the below code, doing a retun 0 from the functions 'pci_create_firmware_label_files' and 'pci_remove_firmware_label_files' defined as void. +#ifndef CONFIG_DMI +static inline void pci_create_firmware_label_files(struct pci_dev *pdev) +{ return 0; } +static inline void pci_remove_firmware_label_files(struct pci_dev *pdev) +{ return 0; } Signed-off-by: Narendra K <narendra_k@dell.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | | | PCI: Do not run NVidia quirks related to MSI with MSI disabledRafael J. Wysocki2010-07-301-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no reason to run NVidia-specific quirks related to HT MSI mappings with MSI disabled via pci=nomsi, so make __nv_msi_ht_cap_quirk() return immediately in that case. This allows at least one machine to boot 100% of the time with pci=nomsi (it still doesn't boot reliably without that). Addresses https://bugzilla.kernel.org/show_bug.cgi?id=16443 . Cc: stable@kernel.org Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | | | PCI: use for_each_pci_dev()Kulikov Vasiliy2010-07-305-7/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use for_each_pci_dev() to simplify the code. Signed-off-by: Kulikov Vasiliy <segooon@gmail.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | | | PCI: MSI: Restore read_msi_msg_desc(); add get_cached_msi_msg_desc()Ben Hutchings2010-07-301-5/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 2ca1af9aa3285c6a5f103ed31ad09f7399fc65d7 "PCI: MSI: Remove unsafe and unnecessary hardware access" changed read_msi_msg_desc() to return the last MSI message written instead of reading it from the device, since it may be called while the device is in a reduced power state. However, the pSeries platform code really does need to read messages from the device, since they are initially written by firmware. Therefore: - Restore the previous behaviour of read_msi_msg_desc() - Add new functions get_cached_msi_msg{,_desc}() which return the last MSI message written - Use the new functions where appropriate Acked-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | | | PCI: export SMBIOS provided firmware instance and label to sysfsNarendra K2010-07-304-0/+160
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch exports SMBIOS provided firmware instance and label of onboard PCI devices to sysfs. New files are: /sys/bus/pci/devices/.../label which contains the firmware name for the device in question, and /sys/bus/pci/devices/.../index which contains the firmware device type instance for the given device. Signed-off-by: Jordan Hargrave <jordan_hargrave@dell.com> Signed-off-by: Narendra K <narendra_k@dell.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| * | | | PCI: Allow read/write access to sysfs I/O port resourcesAlex Williamson2010-07-301-0/+68
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PCI sysfs resource files currently only allow mmap'ing. On x86 this works fine for memory backed BARs, but doesn't work at all for I/O port backed BARs. Add read/write to I/O port PCI sysfs resource files to allow userspace access to these device regions. Acked-by: Chris Wright <chrisw@redhat.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-08 04:03:15 +0000