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  1. Jun 22, 2014
    • Jiang Liu's avatar
      x86, devicetree, irq: Use common mechanism to support irqdomain · facd8fdb
      Jiang Liu authored
      
      
      Now the ioapic driver provides a common interface to create irqdomain,
      so replace the private implementation.
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Rob Herring <rob.herring@calxeda.com>
      Cc: Michal Simek <monstr@monstr.eu>
      Cc: Tony Lindgren <tony@atomide.com>
      Link: http://lkml.kernel.org/r/1402302011-23642-29-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      facd8fdb
    • Jiang Liu's avatar
      x86, SFI, irq: Provide basic irqdomain support · 1b5d3e00
      Jiang Liu authored
      
      
      Enhance SFI to provide basic support of irqdomain with identity mapping
      between GSIs and IRQs.
      
      Some Intel MID platforms assumes identity mapping between GSI and IRQ,
      so we can't dynamically allocate IRQ number on demand.
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: H. Peter Anvin <hpa@linux.intel.com>
      Cc: sfi-devel@simplefirmware.org
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Len Brown <lenb@kernel.org>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
      Link: http://lkml.kernel.org/r/1402302011-23642-28-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      1b5d3e00
    • Jiang Liu's avatar
      x86, mpparse, irq: Provide basic irqdomain support · 74501edc
      Jiang Liu authored
      
      
      Enhance mpparse to provide basic support of irqdomain.
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Link: http://lkml.kernel.org/r/1402302011-23642-27-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      74501edc
    • Jiang Liu's avatar
      x86, ACPI, irq: Provide basic irqdomain support · ca7e28aa
      Jiang Liu authored
      
      
      Enhance ACPI driver to provide basic irqdomain support for IOAPIC.
      
      We will build identity mapping for IOAPICs hosting legacy IRQs,
      otherwise dynamically allocate IRQ numbers for IOAPIC pins on demand.
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Len Brown <len.brown@intel.com>
      Cc: Pavel Machek <pavel@ucw.cz>
      Link: http://lkml.kernel.org/r/1402302011-23642-26-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      ca7e28aa
    • Jiang Liu's avatar
      x86, irq: Enhance mp_register_ioapic() to support irqdomain · 44767bfa
      Jiang Liu authored
      
      
      Enhance function mp_register_ioapic() to support irqdomain.
      When registering IOAPIC, caller may provide callbacks and parameters
      for creating irqdomain. The IOAPIC core will create irqdomain later
      if caller has passed in corresponding parameters.
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: sfi-devel@simplefirmware.org
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Len Brown <len.brown@intel.com>
      Cc: Pavel Machek <pavel@ucw.cz>
      Cc: Rob Herring <rob.herring@calxeda.com>
      Cc: Michal Simek <monstr@monstr.eu>
      Cc: Tony Lindgren <tony@atomide.com>
      Link: http://lkml.kernel.org/r/1402302011-23642-25-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      44767bfa
    • Jiang Liu's avatar
      x86, irq: Introduce mechanisms to support dynamically allocate IRQ for IOAPIC · d7f3d478
      Jiang Liu authored
      
      
      Currently x86 support identity mapping between GSI(IOAPIC pin) and IRQ
      number, so continous IRQs at low end are statically allocated to IOAPICs
      at boot time. This design causes trouble to support IOAPIC hotplug.
      
      This patch implements basic mechanism to dynamically allocate IRQ on
      demand for IOAPIC pins by using irqdomain framework.
      
      It first adds several fields into struct ioapic to support irqdomain.
      Then it implements an algorithm to dynamically allocate IRQ number
      for IOAPIC pins on demand.
      
      Currently it supports three types of irqdomain:
      1) LEGACY: used to support IOAPIC hosting legacy IRQs and building
         identity mapping for legacy IRQs. A speical case, we dynamically
         allocate IRQ number for IOAPIC pin which has GSI number below
         nr_legacy_irqs() but isn't legacy IRQ. This is for backward
         compatibility and avoid regression.
      2) STRICT: build identity mapping between GSI and IRQ nubmer.
      3) DYNAMIC: dynamically allocate IRQ number for IOAPIC pin on demand.
      
      Legacy(ISA) IRQs is not managed by irqdomain because there may be
      multiple pins sharing the same IRQ number and current irqdomain only
      supports 1:1 mapping between pins and IRQ.
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Len Brown <len.brown@intel.com>
      Cc: Pavel Machek <pavel@ucw.cz>
      Link: http://lkml.kernel.org/r/1402302011-23642-24-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      d7f3d478
    • Jiang Liu's avatar
      x86, irq, ACPI: Change __acpi_register_gsi to return IRQ number instead of GSI · 84245af7
      Jiang Liu authored
      
      
      Currently __acpi_register_gsi is defined to return GSI number and
      may be set to acpi_register_gsi_pic(), acpi_register_gsi_ioapic(),
      acpi_register_gsi_xen_hvm() and acpi_register_gsi_xen().
      
      Among which, acpi_register_gsi_ioapic() returns GSI number, but
      acpi_register_gsi_xen_hvm() and acpi_register_gsi_xen() actually
      returns IRQ number instead of GSI. And for acpi_register_gsi_pic(),
      GSI number equals to IRQ number.
      
      So change acpi_register_gsi_ioapic() to return IRQ number, it also
      simplifies the code.
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Len Brown <len.brown@intel.com>
      Cc: Pavel Machek <pavel@ucw.cz>
      Link: http://lkml.kernel.org/r/1402380887-32512-1-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      84245af7
    • Jiang Liu's avatar
      x86, ACPI, irq: Consolidate algorithm of mapping (ioapic, pin) to IRQ number · 6b9fb708
      Jiang Liu authored
      
      
      Currently ACPI and ioapic both implement algorithms to map (ioapic, pin)
      to IRQ number. So consolidate the common part into one place, which is
      also preparing for irqdomain support.
      
      It introduces mp_map_gsi_to_irq(), which will be used to allocate IRQ
      number IOAPIC pins when irqdomain is enabled.
      
      Also rename gsi_to_irq() to map_gsi_to_irq(), later we will introduce
      unmap_gsi_to_irq() when enabling IOAPIC hotplug.
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Len Brown <len.brown@intel.com>
      Cc: Pavel Machek <pavel@ucw.cz>
      Link: http://lkml.kernel.org/r/1402380812-32446-1-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      6b9fb708
    • Jiang Liu's avatar
      x86, irq: Simplify arch_early_irq_init() · 4b92b4f7
      Jiang Liu authored
      
      
      Simplify function arch_early_irq_init() and kill static array irq_cfgx[].
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Link: http://lkml.kernel.org/r/1402302011-23642-21-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      4b92b4f7
    • Jiang Liu's avatar
      x86, irq: Count legacy IRQs by legacy_pic->nr_legacy_irqs instead of NR_IRQS_LEGACY · 95d76acc
      Jiang Liu authored
      
      
      Some platforms, such as Intel MID and mshypv, do not support legacy
      interrupt controllers. So count legacy IRQs by legacy_pic->nr_legacy_irqs
      instead of hard-coded NR_IRQS_LEGACY.
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: xen-devel@lists.xenproject.org
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Len Brown <len.brown@intel.com>
      Cc: Pavel Machek <pavel@ucw.cz>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Rob Herring <rob.herring@calxeda.com>
      Cc: Michal Simek <monstr@monstr.eu>
      Cc: Tony Lindgren <tony@atomide.com>
      Acked-by: default avatarDavid Vrabel <david.vrabel@citrix.com>
      Link: http://lkml.kernel.org/r/1402302011-23642-20-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      95d76acc
    • Jiang Liu's avatar
      x86: ce4100, irq: Do not set legacy_pic to null_legacy_pic · 6532ce99
      Jiang Liu authored
      
      
      Intel CE4100 platforms has i8259 legacy interrupt controllers, so don't
      set legacy_pic to null_legacy_pic in late booting stage because we need
      legacy_pic to mask i8259 pins when enabling IOAPIC pins for safety.
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Link: http://lkml.kernel.org/r/1402302011-23642-19-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      6532ce99
    • Jiang Liu's avatar
      x86: ce4100, irq: Make CE4100 depend on CONFIG_X86_IO_APIC · 6084a6e2
      Jiang Liu authored
      
      
      Intel CE4100 platforms need IOAPIC support becasue some devices are
      always connected to the second IOAPIC, so make CONFIG_CE depends on
      CONFIG_X86_IO_APIC.
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Link: http://lkml.kernel.org/r/1402302011-23642-18-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      6084a6e2
    • Jiang Liu's avatar
      x86, irq: Introduce some helper utilities to improve readability · 18e48551
      Jiang Liu authored
      
      
      It also fixes an off by one bug in
      	if ((ioapic_idx > 0) && (irq > NR_IRQS_LEGACY))
      It should be
      	if ((ioapic_idx > 0) && (irq >= NR_IRQS_LEGACY))
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Link: http://lkml.kernel.org/r/1402302011-23642-17-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      18e48551
    • Jiang Liu's avatar
      x86, irq: Reorganize IO_APIC_get_PCI_irq_vector() to prepare for irqdomain · 79598505
      Jiang Liu authored
      
      
      Reorganize function IO_APIC_get_PCI_irq_vector() a bit to better support
      coming irqdomain.
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Link: http://lkml.kernel.org/r/1402302011-23642-16-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      79598505
    • Jiang Liu's avatar
      x86, ioapic: Use irq_cfg() instead of irq_get_chip_data() for better readability · 32f5ef5d
      Jiang Liu authored
      
      
      Use defined helper function irq_cfg() instead of irq_get_chip_data() for
      better readability.
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Link: http://lkml.kernel.org/r/1402302011-23642-15-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      32f5ef5d
    • Jiang Liu's avatar
      x86, ioapic: Introduce helper utilities to walk ioapics and pins · f44d1692
      Jiang Liu authored
      
      
      Introduce helper utilities for_each_ioapic(), for_each_ioapic_reverse(),
      for_each_pin() and for_each_ioapic_pin() to walk ioapics and pins.
      They will be rewritten e will rewrite later to support IOAPIC hotplug.
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Link: http://lkml.kernel.org/r/1402302011-23642-14-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      f44d1692
    • Jiang Liu's avatar
      x86, ioapic: Kill static variable nr_irqs_gsi · 518b2c63
      Jiang Liu authored
      
      
      Static variable nr_irqs_gsi is used to maintain the lowest dynamic
      allocatable IRQ number. It may cause trouble when enabling dynamic
      IRQ allocation for IOAPIC, so use arch_dynirq_lower_bound() to
      avoid directly accessing nr_irqs_gsi and kill nr_irqs_gsi.
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Link: http://lkml.kernel.org/r/1402302011-23642-13-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      518b2c63
    • Jiang Liu's avatar
      x86, ioapic: Kill unused global variable timer_through_8259 · 4035ed01
      Jiang Liu authored
      
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Link: http://lkml.kernel.org/r/1402302011-23642-12-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      4035ed01
    • Jiang Liu's avatar
      x86, irq, trivial: Minor improvements of IRQ related code · 3eb2be5f
      Jiang Liu authored
      
      
      1) Kill unused MAX_HARDIRQS_PER_CPU.
      2) Improve function prototype declararions.
      3) Simple typo fix, change "gsit" to "gsi".
      4) Use macro VECTOR_UNDEFINED instead of hard-coded -1.
      5) Kill redundant comments.
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Jiri Kosina <trivial@kernel.org>
      Link: http://lkml.kernel.org/r/1402302011-23642-11-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      3eb2be5f
    • Jiang Liu's avatar
      x86, ACPI, irq: Fix possible eror in GSI to IRQ mapping for legacy IRQ · 2e0ad0e2
      Jiang Liu authored
      
      
      A default identity mapping between GSI and IRQ is built for legacy IRQs.
      So when overriding the default identity mapping for legacy IRQs,
      we should also invalidate isa_irq_to_gsi[gsi] when setting
      isa_irq_to_gsi[irq] = gsi.  Otherwise there may be two entries with the
      same GSI in the isa_irq_to_gsi array, and acpi_isa_irq_to_gsi() may give
      wrong result.
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Len Brown <len.brown@intel.com>
      Cc: Pavel Machek <pavel@ucw.cz>
      Link: http://lkml.kernel.org/r/1402302011-23642-10-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      2e0ad0e2
    • Jiang Liu's avatar
      x86, ACPI, irq: Enhance error handling in function acpi_register_gsi() · 2c0a6894
      Jiang Liu authored
      
      
      Function mp_register_gsi() may return error code when failed to look up
      or program corresponding IOAPIC pin for GSI, so enhance acpi_register_gsi()
      to handle possible error cases.
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Len Brown <len.brown@intel.com>
      Cc: Pavel Machek <pavel@ucw.cz>
      Link: http://lkml.kernel.org/r/1402380683-32345-1-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      2c0a6894
    • Jiang Liu's avatar
      x86, ACPI, trivial: Minor improvements to arch/x86/kernel/acpi/boot.c · e819813f
      Jiang Liu authored
      
      
      1) Remove out-of-date comment
      2) Kill unused function acpi_set_irq_model_pic()
      3) Use NR_IRQS_LEGACY instead of hard-coded 16
      4) Trivial syntax improvements
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Len Brown <len.brown@intel.com>
      Cc: Pavel Machek <pavel@ucw.cz>
      Cc: Jiri Kosina <trivial@kernel.org>
      Link: http://lkml.kernel.org/r/1402302011-23642-8-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      e819813f
    • Jiang Liu's avatar
      x86, acpi, irq: Kill static function irq_to_gsi() · 032329ee
      Jiang Liu authored
      
      
      Static function irq_to_gsi() is only called by acpi_isa_irq_to_gsi(),
      so kill function irq_to_gsi() and simplify acpi_isa_irq_to_gsi().
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Len Brown <len.brown@intel.com>
      Cc: Pavel Machek <pavel@ucw.cz>
      Link: http://lkml.kernel.org/r/1402302011-23642-7-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      032329ee
    • Jiang Liu's avatar
      x86, PCI, ACPI: Use kmalloc_node() to optimize for performance · 965cd0e4
      Jiang Liu authored
      
      
      Use kmalloc_node() instead of kmalloc() when possible to optimize
      for performance on NUMA platforms.
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Acked-by: default avatarBjorn Helgaas <bhelgaas@google.com>
      Acked-by: default avatarDavid Rientjes <rientjes@google.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Link: http://lkml.kernel.org/r/1402302011-23642-6-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      965cd0e4
    • Jiang Liu's avatar
      x86, acpi: Reorganize code to avoid forward declaration in boot.c · 8d7cdcb9
      Jiang Liu authored
      
      
      Reorganize code to avoid forward declaration in boot.c, no function
      changes.
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Len Brown <len.brown@intel.com>
      Cc: Pavel Machek <pavel@ucw.cz>
      Link: http://lkml.kernel.org/r/1402302011-23642-5-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      8d7cdcb9
    • Jiang Liu's avatar
      x86, mpparse: Simplify arch/x86/include/asm/mpspec.h · a491cc90
      Jiang Liu authored
      
      
      Simplify arch/x86/include/asm/mpspec.h by
      1) Change max_physical_apicid to static as it's only used in apic.c.
      2) Kill declaration of mpc_default_type, it's never defined.
      3) Delete default_acpi_madt_oem_check(), it has already been declared
         in apic.h.
      4) Make default_acpi_madt_oem_check() depends on CONFIG_X86_LOCAL_APIC
         instead of CONFIG_X86_64 to support i386.
      5) Change mp_override_legacy_irq(), mp_config_acpi_legacy_irqs() and
         mp_register_gsi() as static because they are only used in acpi/boot.c.
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Acked-by: default avatarDavid Rientjes <rientjes@google.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: H. Peter Anvin <hpa@linux.intel.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Len Brown <len.brown@intel.com>
      Cc: Pavel Machek <pavel@ucw.cz>
      Cc: Seiji Aguchi <seiji.aguchi@hds.com>
      Cc: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Richard Weinberger <richard@nod.at>
      Cc: Andi Kleen <ak@linux.intel.com>
      Link: http://lkml.kernel.org/r/1402302011-23642-4-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      a491cc90
    • Jiang Liu's avatar
      x86, mpparse: Use pr_lvl() helper utilities to replace printk(KERN_LVL) · b1bfd5ea
      Jiang Liu authored
      
      
      Use pr_lvl() helper utilities to replace printk(KERN_LVL) for readability,
      no function changes. Also use pr_cont() to avoid multiple newlines in
      one printk().
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Acked-by: default avatarDavid Rientjes <rientjes@google.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Link: http://lkml.kernel.org/r/1402302011-23642-3-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      b1bfd5ea
    • Jiang Liu's avatar
      genirq: Export irq_domain_disassociate() to architecture interrupt drivers · 43a77591
      Jiang Liu authored
      
      
      Export irq_domain_disassociate() to architecture interrupt drivers,
      so it could be used to handle legacy IRQ descriptors on x86.
      
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Link: http://lkml.kernel.org/r/1402302011-23642-37-git-send-email-jiang.liu@linux.intel.com
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      43a77591
    • Linus Torvalds's avatar
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 401c58fc
      Linus Torvalds authored
      Pull perf fixes from Ingo Molnar:
       "This is larger than usual: the main reason are the ARM symbol lookup
        speedups that came in late and were hard to resist.
      
        There's also a kprobes fix and various tooling fixes, plus the minimal
        re-enablement of the mmap2 support interface"
      
      * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits)
        x86/kprobes: Fix build errors and blacklist context_track_user
        perf tests: Add test for closing dso objects on EMFILE error
        perf tests: Add test for caching dso file descriptors
        perf tests: Allow reuse of test_file function
        perf tests: Spawn child for each test
        perf tools: Add dso__data_* interface descriptons
        perf tools: Allow to close dso fd in case of open failure
        perf tools: Add file size check and factor dso__data_read_offset
        perf tools: Cache dso data file descriptor
        perf tools: Add global count of opened dso objects
        perf tools: Add global list of opened dso objects
        perf tools: Add data_fd into dso object
        perf tools: Separate dso data related variables
        perf tools: Cache register accesses for unwind processing
        perf record: Fix to honor user freq/interval properly
        perf timechart: Reflow documentation
        perf probe: Improve error messages in --line option
        perf probe: Improve an error message of perf probe --vars mode
        perf probe: Show error code and description in verbose mode
        perf probe: Improve error message for unknown member of data structure
        ...
      401c58fc
    • Linus Torvalds's avatar
      Merge branch 'locking-urgent-for-linus.patch' of... · 7b08d618
      Linus Torvalds authored
      Merge branch 'locking-urgent-for-linus.patch' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
      
      Pull rtmutex fixes from Thomas Gleixner:
       "Another three patches to make the rtmutex code more robust.  That's
        the last urgent fallout from the big futex/rtmutex investigation"
      
      * 'locking-urgent-for-linus.patch' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        rtmutex: Plug slow unlock race
        rtmutex: Detect changes in the pi lock chain
        rtmutex: Handle deadlock detection smarter
      7b08d618
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux · 7a8e9c80
      Linus Torvalds authored
      Pull s390 patches from Martin Schwidefsky:
       "A couple of bug fixes, a debug change for qdio, an update for the
        default config, and one small extension.
      
        The watchdog module based on diagnose 0x288 is converted to the
        watchdog API and it now works under LPAR as well"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
        s390/ccwgroup: use ccwgroup_ungroup wrapper
        s390/ccwgroup: fix an uninitialized return code
        s390/ccwgroup: obtain extra reference for asynchronous processing
        qdio: Keep device-specific dbf entries
        s390/compat: correct ucontext layout for high gprs
        s390/cio: set device name as early as possible
        s390: update default configuration
        s390: avoid format strings leaking into names
        s390/airq: silence lockdep warning
        s390/watchdog: add support for LPAR operation (diag288)
        s390/watchdog: use watchdog API
        s390/sclp_vt220: Enable ASCII console per default
        s390/qdio: replace shift loop by ilog2
        s390/cio: silence lockdep warning
        s390/uaccess: always load the kernel ASCE after task switch
        s390/ap_bus: Make modules parameters visible in sysfs
      7a8e9c80
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://github.com/gxt/linux · f1b35b83
      Linus Torvalds authored
      Pull UniCore32 bug fixes from Guan Xuetao:
       "This includes bugfixes to make unicore32 successfully build under
        defconfig, and some changes for allmodconfig (though not finished)"
      
      * tag 'for-linus' of git://github.com/gxt/linux:
        unicore32: Remove ARCH_HAS_CPUFREQ config option
        UniCore32: Change git tree location information in MAINTAINERS
        arch: unicore32: ksyms: export '__cpuc_coherent_kern_range' to avoid compiling failure
        arch: unicore32: ksyms: export 'pm_power_off' to avoid compiling failure.
        arch: unicore32: ksyms: export additional find_first_*() to avoid compiling failure
        arch:unicore32:mm: add devmem_is_allowed() to support STRICT_DEVMEM
        unicore32: include: asm: add missing ')' for PAGE_* macros in pgtable.h
        arch/unicore32/kernel/setup.c: add generic 'screen_info' to avoid compiling failure
        drivers: scsi: mvsas: fix compiling issue by adding 'MVS_' for "enum pci_interrupt_cause"
        arch: unicore32: kernel: ksyms: remove 'bswapsi2' and 'muldi3' to avoid compiling failure
        arch/unicore32/kernel/ksyms.c: remove 2 export symbols to avoid compiling failure
        drivers/rtc/rtc-puv3.c: remove "&dev->" for typo issue MIME-Version: 1.0
        drivers/rtc/rtc-puv3.c: use dev_dbg() instead of dev_debug() for typo issue
        arch/unicore32/include/asm/io.h: add readl_relaxed() generic definition
        arch/unicore32/include/asm/ptrace.h: add generic definition for profile_pc()
        arch/unicore32/mm/alignment.c: include "asm/pgtable.h" to avoid compiling error
        arch/unicore32/kernel/clock.c: add readl() and writel() for 'PM_' macros
        arch/unicore32/kernel/module.c: use __vmalloc_node_range() instead of __vmalloc_area()
        arch/unicore32/kernel/ksyms.c: remove several undefined exported symbols
      f1b35b83
    • Linus Torvalds's avatar
      Merge tag 'char-misc-3.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc · 60761c10
      Linus Torvalds authored
      Pull char / misc driver fixes from Greg KH:
       "Here are 3 patches, one a revert of the UIO patch you objected to in
        3.16-rc1 and that no one wanted to defend, a w1 driver bugfix, and a
        MAINTAINERS update for the vmware balloon driver.
      
        All of these, except for the MAINTAINERS update which just got added,
        have been in linux-next just fine"
      
      * tag 'char-misc-3.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
        MAINTAINERS: add entry for VMware Balloon driver
        w1: mxc_w1: Fix incorrect "presence" status
        Revert "uio: fix vma io range check in mmap"
      60761c10
    • Linus Torvalds's avatar
      Merge tag 'staging-3.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging · e6934ab4
      Linus Torvalds authored
      Pull staging driver fixes from Greg KH:
       "Here are a few fixes for staging and iio drivers that resolve issues
        reported in 3.16-rc1.
      
        All have been in linux-next just fine"
      
      * tag 'staging-3.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
        imx-drm: parallel-display: Fix DPMS default state.
        staging: android: timed_output: fix use after free of dev
        staging: comedi: addi_apci_1564: add addi_watchdog dependency
        staging: rtl8723au: Reference correct firmwarefiles with MODULE_FIRMWARE()
        staging: rtl8723au: Request correct firmware file for A-cut parts
        iio: adc: checking for NULL instead of IS_ERR() in probe
        iio: adc: at91: signedness bug in at91_adc_get_trigger_value_by_name()
        iio: mxs-lradc: fix divider
        iio: Fix endianness issue in ak8975_read_axis()
        staging/iio: IIO_SIMPLE_DUMMY_BUFFER neds IIO_BUFFER
        twl4030-madc: Request processed values in twl4030_get_madc_conversion
        staging: iio: tsl2x7x_core: fix proximity treshold
        iio: Fix two mpl3115 issues in measurement conversion
        iio: hid-sensors: Get feature report from sensor hub after changing power state
      e6934ab4
    • Linus Torvalds's avatar
      Merge tag 'tty-3.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty · c3cb500e
      Linus Torvalds authored
      Pull tty/serial bugfixes from Greg KH:
       "Here are some tty / serial driver bugfixes for 3.16-rc2 that resolve
        some reported issues.  The samsung driver build error itself has been
        reported by a bunch of people, sorry about that one.  The others are
        all tiny and everyone seems to like them in linux-next so far"
      
      * tag 'tty-3.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
        tty/serial: fix 8250 early console option passing to regular console
        tty: Correct INPCK handling
        serial: Fix IGNBRK handling
        serial: samsung: Fix build error
      c3cb500e
    • Linus Torvalds's avatar
      Merge tag 'usb-3.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb · 564fbee9
      Linus Torvalds authored
      Pull USB fixes from Greg KH:
       "Here are some USB fixes for 3.16-rc2 that resolve some reported
        issues.  All of these have been in linux-next for a while with no
        problems"
      
      * tag 'usb-3.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
        USB: usbtest: add a timeout for scatter-gather tests
        USB: EHCI: avoid BIOS handover on the HASEE E200
        usb: fix hub-port pm_runtime_enable() vs runtime pm transitions
        usb: quiet peer failure warning, disable poweroff
        usb: improve "not suspended yet" message in hub_suspend()
        xhci: Fix sleeping with IRQs disabled in xhci_stop_device()
        usb: fix ->update_hub_device() vs hdev->maxchild
      564fbee9
  2. Jun 21, 2014
  3. Jun 20, 2014
    • Linus Torvalds's avatar
      Merge tag 'pm+acpi-3.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 3c8fb504
      Linus Torvalds authored
      Pull ACPI and power management fixes from Rafael Wysocki:
       "These are fixes mostly (ia64 regression related to the ACPI
        enumeration of devices, cpufreq regressions, fix for I2C controllers
        included in Intel SoCs, mvebu cpuidle driver fix related to sysfs)
        plus additional kernel command line arguments from Kees to make it
        possible to build kernel images with hibernation and the kernel
        address space randomization included simultaneously, a new ACPI
        battery driver quirk for a system with a broken BIOS and a couple of
        ACPI core cleanups.
      
        Specifics:
      
         - Fix for an ia64 regression introduced during the 3.11 cycle by a
           commit that modified the hardware initialization ordering and made
           device discovery fail on some systems.
      
         - Fix for a build problem on systems where the cpufreq-cpu0 driver is
           built-in and the cpu-thermal driver is modular from Arnd Bergmann.
      
         - Fix for a recently introduced computational mistake in the
           intel_pstate driver that leads to excessive rounding errors from
           Doug Smythies.
      
         - Fix for a failure code path in cpufreq_update_policy() that fails
           to unlock the locks acquired previously from Aaron Plattner.
      
         - Fix for the cpuidle mvebu driver to use shorter state names which
           will prevent the sysfs interface from returning mangled strings.
           From Gregory Clement.
      
         - ACPI LPSS driver fix to make sure that the I2C controllers included
           in BayTrail SoCs are not held in the reset state while they are
           being probed from Mika Westerberg.
      
         - New kernel command line arguments making it possible to build
           kernel images with hibernation and kASLR included at the same time
           and to select which of them will be used via the command line (they
           are still functionally mutually exclusive, though).  From Kees
           Cook.
      
         - ACPI battery driver quirk for Acer Aspire V5-573G that fails to
           send battery status change notifications timely from Alexander
           Mezin.
      
         - Two ACPI core cleanups from Christoph Jaeger and Fabian Frederick"
      
      * tag 'pm+acpi-3.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        cpuidle: mvebu: Fix the name of the states
        cpufreq: unlock when failing cpufreq_update_policy()
        intel_pstate: Correct rounding in busy calculation
        ACPI: use kstrto*() instead of simple_strto*()
        ACPI / processor replace __attribute__((packed)) by __packed
        ACPI / battery: add quirk for Acer Aspire V5-573G
        ACPI / battery: use callback for setting up quirks
        ACPI / LPSS: Take I2C host controllers out of reset
        x86, kaslr: boot-time selectable with hibernation
        PM / hibernate: introduce "nohibernate" boot parameter
        cpufreq: cpufreq-cpu0: fix CPU_THERMAL dependency
        ACPI / ia64 / sba_iommu: Restore the working initialization ordering
      3c8fb504
    • Linus Torvalds's avatar
      Merge tag 'sound-3.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · 4ef61076
      Linus Torvalds authored
      Pull sound fixes from Takashi Iwai:
       "The significant part here is a few security fixes for ALSA core
        control API by Lars.  Besides that, there are a few fixes for ASoC
        sigmadsp (again by Lars) for building properly, and small fixes for
        ASoC rsnd, MMP, PXA and FSL, in addition to a fix for bogus WARNING in
        i915/HD-audio binding"
      
      * tag 'sound-3.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
        ALSA: control: Make sure that id->index does not overflow
        ALSA: control: Handle numid overflow
        ALSA: control: Don't access controls outside of protected regions
        ALSA: control: Fix replacing user controls
        ALSA: control: Protect user controls against concurrent access
        drm/i915, HD-audio: Don't continue probing when nomodeset is given
        ASoC: fsl: Fix build problem
        ASoC: rsnd: fixup index of src/dst mod when capture
        ASoC: fsl_spdif: Fix integer overflow when calculating divisors
        ASoC: fsl_spdif: Fix incorrect usage of regmap_read()
        ASoC: dapm: Make sure register value is in sync with DAPM kcontrol state
        ASoC: sigmadsp: Split regmap and I2C support into separate modules
        ASoC: MMP audio needs sram support
        ASoC: pxa: add I2C dependencies as needed
      4ef61076
    • Linus Torvalds's avatar
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · 0c9bc275
      Linus Torvalds authored
      Pull drm fixes from Dave Airlie:
       "This looks bigger than it is, as one of the nouveau firmware fixes
        ("drm/gf100-/gr: report class data to host on fwmthd failure")
        regenerates a bunch of the firmware files after changing the assembly
        by a few lines, without that, its more of a
      
          36 files changed, 370 insertions(+), 129 deletions(-)
      
        It contains some vt.c fixes acked by Greg, for rare hard hangs on i915
        loading, that also fixes hangs on reload and spurious register write
        errors.
      
        drm core: one fix for uninit memory
      
        nouveau: displayport rework caused a few regressions, Ben has been
           fixing them as the appear, along with some other fixes
      
        radeon: pageflipping regression fix, deep color fix, mode validation
           fixes
      
        i915: fbc disable, vga console kick off, backlight fix, divide-by-zero
           fix"
      
      * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (33 commits)
        drm: fix uninitialized acquire_ctx fields (v2)
        drm/radeon: Fix radeon_irq_kms_pflip_irq_get/put() imbalance
        Revert "drm/radeon: remove drm_vblank_get|put from pflip handling"
        drm/radeon: improve dvi_mode_valid
        drm/radeon: update mode_valid testing for DP
        drm/radeon: Use dce5/6 hdmi deep color clock setup also on dce8+
        drm/nouveau/disp: fix oops in destructor with headless cards
        drm/gf117/i2c: no aux channels on this chipset
        drm/nouveau/doc: update the thermal documentation
        drm/nouveau/pwr: fix typo in fifo wrap handling
        drm/nv50/disp: fix a potential oops in supervisor handling
        drm/nouveau/disp/dp: don't touch link config after success
        drm/nouveau/kms: reference vblank for crtc during pageflip.
        drm/gk104/fb/ram: fixups from an earlier search+replace
        drm/nv50/gr: remove an unneeded write while initialising PGRAPH
        drm/nv50/gr: fix overlap while zeroing zcull regions
        drm/gf100-/gr: report class data to host on fwmthd failure
        drm/gk104/ibus: increase various random timeouts
        drm/gk104/clk: only touch divider for mode we'll be using
        drm/radeon: Bypass hw lut's for > 8 bpc framebuffer scanout.
        ...
      0c9bc275