1. 24 Apr, 2015 40 commits
    • Jiang Liu's avatar
      x86/irq: Clean up unused forward declarations in x86_init.h · 3dd786ea
      Jiang Liu authored
      Clean up unused forward declarations in x86_init.h.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Tested-by: default avatarJoerg Roedel <jroedel@suse.de>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Yijing Wang <wangyijing@huawei.com>
      Link: http://lkml.kernel.org/r/1428978610-28986-9-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      3dd786ea
    • Jiang Liu's avatar
      x86/irq: Remove GENERIC_IRQ_LEGACY_ALLOC_HWIRQ · baac1695
      Jiang Liu authored
      There's no user of irq_alloc_hwirqs(), irq_alloc_hwirq(),
      irq_free_hwirqs() and irq_free_hwirq() in x86 anymore, so remove
      GENERIC_IRQ_LEGACY_ALLOC_HWIRQ and related code.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Link: http://lkml.kernel.org/r/1428978610-28986-8-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      baac1695
    • Jiang Liu's avatar
      x86/irq: Remove x86_io_apic_ops.eoi_ioapic_pin and related interfaces · ad66e1ef
      Jiang Liu authored
      Now there is no user of x86_io_apic_ops.eoi_ioapic_pin anymore, so remove
      it.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Tested-by: default avatarJoerg Roedel <jroedel@suse.de>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: iommu@lists.linux-foundation.org
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Yijing Wang <wangyijing@huawei.com>
      Cc: Grant Likely <grant.likely@linaro.org>
      Link: http://lkml.kernel.org/r/1428978610-28986-7-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      ad66e1ef
    • Jiang Liu's avatar
      x86/irq: Remove x86_io_apic_ops.set_affinity and related interfaces · aa5cb97f
      Jiang Liu authored
      Now there is no user of x86_io_apic_ops.set_affinity anymore, so remove
      it.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Tested-by: default avatarJoerg Roedel <jroedel@suse.de>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: iommu@lists.linux-foundation.org
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Yijing Wang <wangyijing@huawei.com>
      Cc: Grant Likely <grant.likely@linaro.org>
      Link: http://lkml.kernel.org/r/1428978610-28986-6-git-send-email-jiang.liu@linux.intel.com
      aa5cb97f
    • Jiang Liu's avatar
      x86/irq: Remove x86_io_apic_ops.setup_entry and related interfaces · 35d50d8f
      Jiang Liu authored
      Now there is no user of x86_io_apic_ops.setup_entry anymore, so remove it.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Tested-by: default avatarJoerg Roedel <jroedel@suse.de>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: iommu@lists.linux-foundation.org
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Yijing Wang <wangyijing@huawei.com>
      Cc: Grant Likely <grant.likely@linaro.org>
      Link: http://lkml.kernel.org/r/1428978610-28986-5-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      35d50d8f
    • Jiang Liu's avatar
      x86/irq: Remove x86_io_apic_ops.print_entries and related interfaces · 84bea5cc
      Jiang Liu authored
      Now there is no user of x86_io_apic_ops.print_entries anymore, so remove
      it.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Tested-by: default avatarJoerg Roedel <jroedel@suse.de>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: iommu@lists.linux-foundation.org
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Yijing Wang <wangyijing@huawei.com>
      Cc: Grant Likely <grant.likely@linaro.org>
      Link: http://lkml.kernel.org/r/1428978610-28986-4-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      84bea5cc
    • Jiang Liu's avatar
      x86/irq: Remove unused struct mp_pin_info · b75e818f
      Jiang Liu authored
      Now nobody makes use of struct mp_pin_info, so remove it.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Tested-by: default avatarJoerg Roedel <jroedel@suse.de>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Grant Likely <grant.likely@linaro.org>
      Link: http://lkml.kernel.org/r/1428978610-28986-3-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      b75e818f
    • Jiang Liu's avatar
      x86/irq: Remove unused old IOAPIC irqdomain interfaces · 5ad274d4
      Jiang Liu authored
      Now we have converted to hierarchical irqdomain, so remove unused old
      IOAPIC interfaces and code.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Tested-by: default avatarJoerg Roedel <jroedel@suse.de>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Grant Likely <grant.likely@linaro.org>
      Link: http://lkml.kernel.org/r/1428978610-28986-2-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      5ad274d4
    • Jiang Liu's avatar
      x86/irq: Convert IOAPIC to use hierarchical irqdomain interfaces · d32932d0
      Jiang Liu authored
      Convert IOAPIC driver to support and use hierarchical irqdomain
      interfaces.  It's a little big, but would break bisecting if we split
      it into multiple patches.
      
      Fold in a patch from Andy Shevchenko <andriy.shevchenko@linux.intel.com>
      to make it bisectable.
      http://lkml.org/lkml/2014/12/10/622Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Tested-by: default avatarJoerg Roedel <jroedel@suse.de>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
      Cc: sfi-devel@simplefirmware.org
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Len Brown <len.brown@intel.com>
      Cc: Pavel Machek <pavel@ucw.cz>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rob Herring <robh@kernel.org>
      Cc: David Rientjes <rientjes@google.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Link: http://lkml.kernel.org/r/1428905519-23704-38-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      d32932d0
    • Jiang Liu's avatar
      x86/irq: Introduce helper functions to support hierarchical irqdomains for IOAPIC · 96ed44b2
      Jiang Liu authored
      Introduce several helper functions, which will be used to enable
      hierarchical irqdomain for IOAPIC.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Tested-by: default avatarJoerg Roedel <jroedel@suse.de>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Grant Likely <grant.likely@linaro.org>
      Link: http://lkml.kernel.org/r/1428905519-23704-37-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      96ed44b2
    • Jiang Liu's avatar
      x86/irq: Simplify the way to print IOAPIC entry · a44174ee
      Jiang Liu authored
      Simplify the way to print IOAPIC entry content, so we can remove
      native_io_apic_print_entries(), intel_ir_io_apic_print_entries()
      and x86_io_apic_ops.print_entries() later.
      
      Folded a patch from Thomas to fix errors in printed pin attributes,
      http://www.spinics.net/lists/linux-tip-commits/msg26108.htmlSigned-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Tested-by: default avatarJoerg Roedel <jroedel@suse.de>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Grant Likely <grant.likely@linaro.org>
      Link: http://lkml.kernel.org/r/1428905519-23704-36-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      a44174ee
    • Jiang Liu's avatar
      x86/irq: Refine the way to allocate irq_cfg for legacy IRQs · 13315320
      Jiang Liu authored
      To support legacy ISA IRQs, we need to preallocate irq_cfg structures
      for legacy ISA IRQs. Refine the way to allocate irq_cfg for legacy ISA
      IRQs, so it's more friendly for the hierarchical irqdomain
      implementation.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Tested-by: default avatarJoerg Roedel <jroedel@suse.de>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Grant Likely <grant.likely@linaro.org>
      Link: http://lkml.kernel.org/r/1428905519-23704-35-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      13315320
    • Jiang Liu's avatar
      x86/irq: Implement callbacks to enable hierarchical irqdomains on IOAPICs · 49c7e600
      Jiang Liu authored
      Implement required callbacks to prepare for enabling hierarchical
      irqdomains on IOAPICs. After the conversion we can remove quite some
      code from the old implementation.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Tested-by: default avatarJoerg Roedel <jroedel@suse.de>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Jan Beulich <JBeulich@suse.com>
      Cc: Grant Likely <grant.likely@linaro.org>
      Link: http://lkml.kernel.org/r/1428905519-23704-34-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      49c7e600
    • Jiang Liu's avatar
      x86/irq: Prepare IOAPIC interfaces to support hierarchical irqdomains · c4d05a2c
      Jiang Liu authored
      Introduce helper functions to manipulate struct irq_alloc_info for
      IOAPIC.  Also add an extra parameter to IOAPIC interfaces to prepare
      for hierarchical irqdomain. Function mp_set_gsi_attr() will be removed
      once we have switched to hierarchical irqdomains.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Tested-by: default avatarJoerg Roedel <jroedel@suse.de>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Len Brown <len.brown@intel.com>
      Cc: Pavel Machek <pavel@ucw.cz>
      Cc: Jan Beulich <JBeulich@suse.com>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Link: http://lkml.kernel.org/r/1428905519-23704-33-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      c4d05a2c
    • Jiang Liu's avatar
      x86/irq: Remove unused pre_init_apic_IRQ0() · 4e69d7ea
      Jiang Liu authored
      Now there's no user of pre_init_apic_IRQ0(), so remove it.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Tested-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Jan Beulich <JBeulich@suse.com>
      Cc: Grant Likely <grant.likely@linaro.org>
      Link: http://lkml.kernel.org/r/1428905519-23704-32-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      4e69d7ea
    • Jiang Liu's avatar
      x86/intel-mid, trivial: Refine code syntax for sfi_parse_mtmr() · b0415817
      Jiang Liu authored
      Correctly indent code in function sfi_parse_mtmr().
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Tested-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.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: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Jiri Kosina <trivial@kernel.org>
      Link: http://lkml.kernel.org/r/1428905519-23704-31-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      b0415817
    • Thomas Gleixner's avatar
      x86/intel-mid: Delay initialization of APB timer · 6648d1b4
      Thomas Gleixner authored
      MID has no PIC, but depending on the platform it requires the
      abt_timer, which is connected to irq0. The timer is set up at
      late_time_init().
      
      But, looking at the MID code it seems, that there is no reason to do
      so. The only code which might need the timer working is the TSC
      calibration code, but thats a non issue on MID as that is using its
      own empty calibration function. And check_timer() is not invoked
      either because MID has no PIC and therefor no legacy irqs.
      
      So if you look at intel_mid_time_init() then you'll see that in the
      ARAT case the timer setup is skipped already. So until the point where
      x86_init.timers.setup_percpu_clockev() is called for the boot cpu
      nothing really needs a timer on MID.
      
      According to the MID code the apbt horror is only used for moorestown.
      Medfield and later use the local apic timer without the apbt nonsense.
      
      The best thing we can do is to drop moorestown support and get rid of
      that apbt nonsense alltogether.
      
      I don't think anyone deeply cares about it not being supported from
      3.18 on. The number of devices which sport a moorestown should be
      pretty limited and the only relevant use case of those is to act as a
      pocket heater with short battery life time. Its pretty pointless to
      update kernels on pocket heaters except for bragging reasons.
      
      If someone at Intel really thinks that we need to keep moorestown
      alive for other than documentary and sentimental reasons, then we can
      move the apbt setup to x86_init.timers.setup_percpu_clockev(). At that
      point the IOAPIC is setup already, so it should just work.
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Tested-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.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: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
      Link: http://lkml.kernel.org/r/1428905519-23704-30-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      6648d1b4
    • Jiang Liu's avatar
      irq_remapping: Remove unused function irq_remapping_print_chip() · 0cddfc79
      Jiang Liu authored
      Now there's no user of irq_remapping_print_chip() anymore, so remove it.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Joerg Roedel <jroedel@suse.de>
      Cc: iommu@lists.linux-foundation.org
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Link: http://lkml.kernel.org/r/1428905519-23704-29-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      0cddfc79
    • Jiang Liu's avatar
      x86/irq: Simplify MSI/DMAR/HPET implementation by using common code · e390d895
      Jiang Liu authored
      Use common MSI interfaces instead of private implementations of the
      same functionality to simplify DMAR/HPET driver implementation.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Link: http://lkml.kernel.org/r/1428905519-23704-28-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      e390d895
    • Jiang Liu's avatar
      x86/irq: Implement irq_chip.irq_write_msi_msg for MSI/DMAR/HPET irq_chips · 62ac1780
      Jiang Liu authored
      Implement irq_chip.irq_write_msi_msg for MSI/DMAR/HPET irq_chips, they
      will be used to replace duplicated code.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Link: http://lkml.kernel.org/r/1428905519-23704-27-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      62ac1780
    • Jiang Liu's avatar
      x86/MSI: Replace msi_update_msg() with irq_chip_compose_msi_msg() · 90d84fe9
      Jiang Liu authored
      Function irq_chip_compose_msi_msg() can achieve the same goal as
      msi_update_msg(), so remove msi_update_msg().
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Link: http://lkml.kernel.org/r/1428905519-23704-26-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      90d84fe9
    • Jiang Liu's avatar
      x86/MSI: Simplify the way to deal with remapped MSI interrupts · 68682a26
      Jiang Liu authored
      Simplify the way to deal with remapped MSI interrupts, so we can remove
      irq_chip.irq_print_chip later. We simply change the name when the
      setup detects that the parent domain is remapping.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Link: http://lkml.kernel.org/r/1428905519-23704-25-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      68682a26
    • Jiang Liu's avatar
      x86/irq: Normalize x86 irq_chip name · 81dabe2e
      Jiang Liu authored
      Some irq_chip names use underscore, others use hyphen. So normalize them
      to use hyphen as separator.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Link: http://lkml.kernel.org/r/1428905519-23704-24-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      81dabe2e
    • Jiang Liu's avatar
      x86/uv: Use hierarchical irqdomain to manage UV interrupts · 43fe1abc
      Jiang Liu authored
      Enhance UV code to support hierarchical irqdomain, it helps to make
      the architecture more clear.
      
      We construct hwirq based on mmr_blade and mmr_offset, but mmr_offset
      has type unsigned long, it may exceed the range of irq_hw_number_t. So
      help about the way to construct hwirq based on mmr_blade and
      mmr_offset is welcomed!
      
      Folded a patch from Dimitri Sivanich <sivanich@sgi.com> to fix a bug
      on UV platforms, please refer to:
      http://lkml.org/lkml/2014/12/16/351Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Russ Anderson <rja@sgi.com>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Link: http://lkml.kernel.org/r/1428905519-23704-23-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      43fe1abc
    • Jiang Liu's avatar
      x86/htirq: Use hierarchical irqdomain to manage Hypertransport interrupts · 49e07d8f
      Jiang Liu authored
      We have slightly changed the architecture interfaces to support htirq
      PCI driver. It's safe because currently Hypertransport interrupt is
      only enabled on x86 platforms.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Link: http://lkml.kernel.org/r/1428905519-23704-22-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      49e07d8f
    • Jiang Liu's avatar
      x86/irq: Use hierarchical irqdomain to manage DMAR interrupts · 0921f1da
      Jiang Liu authored
      Enhance DMAR code to support hierarchical irqdomain, it helps to make
      the architecture more clear.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Link: http://lkml.kernel.org/r/1428905519-23704-21-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      0921f1da
    • Jiang Liu's avatar
      iommu/vt-d: Refine the interfaces to create IRQ for DMAR unit · 34742db8
      Jiang Liu authored
      Refine the interfaces to create IRQ for DMAR unit. It's a preparation
      for converting DMAR IRQ to hierarchical irqdomain on x86.
      
      It also moves dmar_alloc_hwirq()/dmar_free_hwirq() from irq_remapping.h
      to dmar.h. They are not irq_remapping specific.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: iommu@lists.linux-foundation.org
      Cc: Vinod Koul <vinod.koul@intel.com>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Fenghua Yu <fenghua.yu@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Link: http://lkml.kernel.org/r/1428905519-23704-20-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      34742db8
    • Jiang Liu's avatar
      x86/MSI: Clean up unused MSI related code and interfaces · b1855c75
      Jiang Liu authored
      Now MSI interrupt has been converted to new hierarchical irqdomain
      interfaces, so remove legacy MSI related code and interfaces.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Yijing Wang <wangyijing@huawei.com>
      Link: http://lkml.kernel.org/r/1428905519-23704-19-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      b1855c75
    • Jiang Liu's avatar
      irq_remapping: Clean up unused MSI related code · 7a53a121
      Jiang Liu authored
      Now MSI interrupt has been converted to new hierarchical irqdomain
      interfaces, so remove legacy MSI related code and interfaces.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: iommu@lists.linux-foundation.org
      Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
      Cc: Joerg Roedel <jroedel@suse.de>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Yijing Wang <wangyijing@huawei.com>
      Link: http://lkml.kernel.org/r/1428905519-23704-18-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      7a53a121
    • Jiang Liu's avatar
      irq_remapping/amd: Clean up unused MSI related code · 3c3d4f90
      Jiang Liu authored
      Now MSI interrupt has been converted to new hierarchical irqdomain
      interfaces, so remove legacy MSI related code.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Acked-by: default avatarJoerg Roedel <jroedel@suse.de>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: iommu@lists.linux-foundation.org
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Link: http://lkml.kernel.org/r/1428905519-23704-17-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      3c3d4f90
    • Jiang Liu's avatar
      irq_remapping/vt-d: Clean up unused MSI related code · 2b43817e
      Jiang Liu authored
      Now MSI interrupt has been converted to new hierarchical irqdomain
      interfaces, so remove legacy MSI related code.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Acked-by: default avatarJoerg Roedel <jroedel@suse.de>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: iommu@lists.linux-foundation.org
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Link: http://lkml.kernel.org/r/1428905519-23704-16-git-send-email-jiang.liu@linux.intel.com
      2b43817e
    • Jiang Liu's avatar
      x86/irq: Directly call native_compose_msi_msg() for DMAR IRQ · 80aa2833
      Jiang Liu authored
      DMAR interrupt won't be remapped by interrupt remapping hardware,
      so directly call native_compose_msi_msg() for DMAR IRQ to compose MSI
      message data. This will help to simplify MSI code later.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Link: http://lkml.kernel.org/r/1428905519-23704-15-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      80aa2833
    • Jiang Liu's avatar
      x86/MSI: Use hierarchical irqdomains to manage MSI interrupts · 52f518a3
      Jiang Liu authored
      Enhance MSI code to support hierarchical irqdomains, it helps to make
      the architecture more clear.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: iommu@lists.linux-foundation.org
      Cc: Joerg Roedel <jroedel@suse.de>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Link: http://lkml.kernel.org/r/1428905519-23704-14-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      52f518a3
    • Jiang Liu's avatar
      x86/hpet: Enhance HPET IRQ to support hierarchical irqdomains · 3cb96f0c
      Jiang Liu authored
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Andy Lutomirski <luto@amacapital.net>
      Link: http://lkml.kernel.org/r/1428905519-23704-13-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      3cb96f0c
    • Jiang Liu's avatar
      irq_remapping/amd: Enhance AMD IR driver to support hierarchical irqdomains · 7c71d306
      Jiang Liu authored
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Acked-by: default avatarJoerg Roedel <jroedel@suse.de>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: iommu@lists.linux-foundation.org
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Link: http://lkml.kernel.org/r/1428905519-23704-12-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      7c71d306
    • Jiang Liu's avatar
      irq_remapping/vt-d: Enhance Intel IR driver to support hierarchical irqdomains · b106ee63
      Jiang Liu authored
      Enhance Intel interrupt remapping driver to support hierarchical
      irqdomains. Implement intel_ir_chip to support stacked irq_chip.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Acked-by: default avatarJoerg Roedel <jroedel@suse.de>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: iommu@lists.linux-foundation.org
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: David Woodhouse <dwmw2@infradead.org>
      Link: http://lkml.kernel.org/r/1428905519-23704-11-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      b106ee63
    • Jiang Liu's avatar
      irq_remapping/vt-d: Change prototypes to prepare for hierarchical irqdomain · 8dedf4cf
      Jiang Liu authored
      Prepare for the conversion to hierarchical irqdomains by changing
      function prototypes. No functional changes.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Acked-by: default avatarJoerg Roedel <jroedel@suse.de>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: iommu@lists.linux-foundation.org
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Link: http://lkml.kernel.org/r/1428905519-23704-10-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      8dedf4cf
    • Jiang Liu's avatar
      irq_remapping: Introduce new interfaces to support hierarchical irqdomains · 947045a2
      Jiang Liu authored
      Introduce new interfaces for interrupt remapping drivers to support
      hierarchical irqdomains:
      
      1) irq_remapping_get_ir_irq_domain(): get irqdomain associated with an
         interrupt remapping unit. IOAPIC/HPET drivers use this interface to
         get parent interrupt remapping irqdomain.
      
      2) irq_remapping_get_irq_domain(): get irqdomain for an IRQ allocation.
         This is mainly used to support MSI irqdomain. We must build one MSI
         irqdomain for each interrupt remapping unit. MSI driver calls this
         interface to get MSI irqdomain associated with an IR irqdomain which
         manages the PCI devices. In a further step we will store the irqdomain
         pointer in the device struct to avoid this call in the irq allocation
         path.
      
      Architecture specific hooks:
      1) arch_get_ir_parent_domain(): get parent irqdomain for IR irqdomain,
         which is x86_vector_domain on x86 platforms.
      2) arch_create_msi_irq_domain(): create an MSI irqdomain associated with
         the interrupt remapping unit.
      
      We also add following callbacks into struct irq_remap_ops:
      	struct irq_domain *(*get_ir_irq_domain)(struct irq_alloc_info *);
      	struct irq_domain *(*get_irq_domain)(struct irq_alloc_info *);
      
      Once all clients of IR have been converted to the new hierarchical irqdomain
      interfaces, we will:
      1) Remove set_ioapic_entry, set_affinity, free_irq, compose_msi_msg,
         msi_alloc_irq, msi_setup_irq, setup_hpet_msi from struct remap_osp
      2) Remove setup_ioapic_remapped_entry, free_remapped_irq,
         compose_remapped_msi_msg, setup_hpet_msi_remapped, setup_remapped_irq.
      3) Simplify x86_io_apic_ops and x86_msi.
      
      We can achieve a way clearer architecture with all these changes
      applied.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Acked-by: default avatarJoerg Roedel <jroedel@suse.de>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: iommu@lists.linux-foundation.org
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Link: http://lkml.kernel.org/r/1428905519-23704-9-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      947045a2
    • Jiang Liu's avatar
      x86/dmar: Use new irqdomain interfaces to allocate/free IRQ · a62b32cd
      Jiang Liu authored
      Use new irqdomain interfaces to allocate/free IRQ for DMAR and interrupt
      remapping, so we can remove GENERIC_IRQ_LEGACY_ALLOC_HWIRQ later.
      
      The private definitions of irq_alloc_hwirqs()/irq_free_hwirqs() are a
      temporary solution, they will be removed once we have converted the
      interrupt remapping driver to use irqdomain framework.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: iommu@lists.linux-foundation.org
      Cc: Joerg Roedel <jroedel@suse.de>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Link: http://lkml.kernel.org/r/1428905519-23704-8-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      a62b32cd
    • Jiang Liu's avatar
      x86/htirq: Use new irqdomain interfaces to allocate/free IRQ · af87baed
      Jiang Liu authored
      Use new irqdomain interfaces to allocate/free IRQ for HTIRQ, so we can
      remove GENERIC_IRQ_LEGACY_ALLOC_HWIRQ later.
      
      This patch changes the interfaces between arch independent PCI driver
      and arch specific code. Currently HT_IRQ is only enabled on x86, so it
      does not affect other architectures.
      Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Cc: David Cohen <david.a.cohen@linux.intel.com>
      Cc: Sander Eikelenboom <linux@eikelenboom.it>
      Cc: David Vrabel <david.vrabel@citrix.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Joerg Roedel <joro@8bytes.org>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
      Cc: Randy Dunlap <rdunlap@infradead.org>
      Cc: Yinghai Lu <yinghai@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dimitri Sivanich <sivanich@sgi.com>
      Link: http://lkml.kernel.org/r/1428905519-23704-7-git-send-email-jiang.liu@linux.intel.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      af87baed