kernel.git/arch/x86/kernel/apic, branch linux-4.11.y

x86/platform/uv: Fix calculation of Global Physical Address

2017-03-22T06:41:10Z

The calculation of the global physical address (GPA) on UV4 is incorrect. The gnode_extra/upper global offset should only be applied for fixed address space systems (UV1..3). Tested-by: John Estabrook Signed-off-by: Mike Travis Cc: Dimitri Sivanich Cc: John Estabrook Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Russ Anderson Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20170321231646.667689538@asylum.americas.sgi.com Signed-off-by: Ingo Molnar

x86/acpi: Restore the order of CPU IDs

2017-03-11T13:41:19Z

The following commits: f7c28833c2 ("x86/acpi: Enable acpi to register all possible cpus at boot time") and 8f54969dc8 ("x86/acpi: Introduce persistent storage for cpuid <-> apicid mapping") ... registered all the possible CPUs at boot time via ACPI tables to make the mapping of cpuid <-> apicid fixed. Both enabled and disabled CPUs could have a logical CPU ID after boot time. But, ACPI tables are unreliable. the number amd order of Local APIC entries which depends on the firmware is often inconsistent with the physical devices. Even if they are consistent, The disabled CPUs which take up some logical CPU IDs will also make the order discontinuous. Revert the part of disabled CPUs registration, keep the allocation logic of logical CPU IDs and also keep some code location changes. Signed-off-by: Dou Liyang Tested-by: Xiaolong Ye Cc: rjw@rjwysocki.net Cc: linux-acpi@vger.kernel.org Cc: guzheng1@huawei.com Cc: izumi.taku@jp.fujitsu.com Cc: lenb@kernel.org Link: http://lkml.kernel.org/r/1488528147-2279-4-git-send-email-douly.fnst@cn.fujitsu.com Signed-off-by: Thomas Gleixner

x86/apic: Simplify enable_IR_x2apic(), remove try_to_enable_IR()

2017-03-01T09:09:09Z

The following commit: 2e63ad4bd5dd ("x86/apic: Do not init irq remapping if ioapic is disabled") ... added a check for skipped IO-APIC setup to enable_IR_x2apic(), but this check is also duplicated in try_to_enable_IR() - and it will never succeed in calling irq_remapping_enable(). Remove the whole irq_remapping_enable() complication: if the IO-APIC is disabled we cannot enable IRQ remapping. Signed-off-by: Dou Liyang Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: bp@alien8.de Cc: nicstange@gmail.com Cc: wanpeng.li@hotmail.com Link: http://lkml.kernel.org/r/1487841401-1543-1-git-send-email-douly.fnst@cn.fujitsu.com Signed-off-by: Ingo Molnar

x86/apic: Fix a warning message in logical CPU IDs allocation

2017-03-01T09:09:08Z

The current warning message in allocate_logical_cpuid() is somewhat confusing: Only 1 processors supported.Processor 2/0x2 and the rest are ignored. As it might imply that there's only one CPU in the system - while what we ran into here is a kernel limitation. Fix the warning message to clarify all that: APIC: NR_CPUS/possible_cpus limit of 2 reached. Processor 2/0x2 and the rest are ignored. ( Also update the error return from -1 to -EINVAL, which is the more canonical return value. ) Signed-off-by: Dou Liyang Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: bp@alien8.de Cc: nicstange@gmail.com Cc: wanpeng.li@hotmail.com Link: http://lkml.kernel.org/r/1488261052-25753-1-git-send-email-douly.fnst@cn.fujitsu.com Signed-off-by: Ingo Molnar

Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-02-28T19:46:00Z

Pull x86 fixes from Ingo Molnar: "Two documentation updates, plus a debugging annotation fix" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/crash: Update the stale comment in reserve_crashkernel() x86/irq, trace: Add __irq_entry annotation to x86's platform IRQ handlers Documentation, x86, resctrl: Recommend locking for resctrlfs

Merge tag 'pci-v4.11-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

2017-02-23T19:53:22Z

Pull PCI updates from Bjorn Helgaas: - add ASPM L1 substate support - enable PCIe Extended Tags when supported - configure PCIe MPS settings on iProc, Versatile, X-Gene, and Xilinx - increase VPD access timeout - add ACS quirks for Intel Union Point, Qualcomm QDF2400 and QDF2432 - use new pci_irq_alloc_vectors() in more drivers - fix MSI affinity memory leak - remove unused MSI interfaces and update documentation - remove unused AER .link_reset() callback - avoid pci_lock / p->pi_lock deadlock seen with perf - serialize sysfs enable/disable num_vfs operations - move DesignWare IP from drivers/pci/host/ to drivers/pci/dwc/ and refactor so we can support both hosts and endpoints - add DT ECAM-like support for HiSilicon Hip06/Hip07 controllers - add Rockchip system power management support - add Thunder-X cn81xx and cn83xx support - add Exynos 5440 PCIe PHY support * tag 'pci-v4.11-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (93 commits) PCI: dwc: Remove dependency of designware on CONFIG_PCI PCI: dwc: Add CONFIG_PCIE_DW_HOST to enable PCI dwc host PCI: dwc: Split pcie-designware.c into host and core files PCI: dwc: designware: Fix style errors in pcie-designware.c PCI: dwc: designware: Parse "num-lanes" property in dw_pcie_setup_rc() PCI: dwc: all: Split struct pcie_port into host-only and core structures PCI: dwc: designware: Get device pointer at the start of dw_pcie_host_init() PCI: dwc: all: Rename cfg_read/cfg_write to read/write PCI: dwc: all: Use platform_set_drvdata() to save private data PCI: dwc: designware: Move register defines to designware header file PCI: dwc: Use PTR_ERR_OR_ZERO to simplify code PCI: dra7xx: Group PHY API invocations PCI: dra7xx: Enable MSI and legacy interrupts simultaneously PCI: dra7xx: Add support to force RC to work in GEN1 mode PCI: dra7xx: Simplify probe code with devm_gpiod_get_optional() PCI: Move DesignWare IP support to new drivers/pci/dwc/ directory PCI: exynos: Support the PHY generic framework Documentation: binding: Modify the exynos5440 PCIe binding phy: phy-exynos-pcie: Add support for Exynos PCIe PHY Documentation: samsung-phy: Add exynos-pcie-phy binding ...

Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-02-21T00:26:57Z

Pull x86 platform updates from Ingo Molnar: "Misc platform updates: SGI UV4 support additions, intel-mid Merrifield enhancements and purge of old code" * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits) x86/platform/UV/NMI: Fix uneccessary kABI breakage x86/platform/UV: Clean up the NMI code to match current coding style x86/platform/UV: Ensure uv_system_init is called when necessary x86/platform/UV: Initialize PCH GPP_D_0 NMI Pin to be NMI source x86/platform/UV: Verify NMI action is valid, default is standard x86/platform/UV: Add basic CPU NMI health check x86/platform/UV: Add Support for UV4 Hubless NMIs x86/platform/UV: Add Support for UV4 Hubless systems x86/platform/UV: Clean up the UV APIC code x86/platform/intel-mid: Move watchdog registration to arch_initcall() x86/platform/intel-mid: Don't shadow error code of mp_map_gsi_to_irq() x86/platform/intel-mid: Allocate RTC interrupt for Merrifield x86/ioapic: Return suitable error code in mp_map_gsi_to_irq() x86/platform/UV: Fix 2 socket config problem x86/platform/UV: Fix panic with missing UVsystab support x86/platform/intel-mid: Enable RTC on Intel Merrifield x86/platform/intel: Remove PMIC GPIO block support x86/platform/intel-mid: Make intel_scu_device_register() static x86/platform/intel-mid: Enable GPIO keys on Merrifield x86/platform/intel-mid: Get rid of duplication of IPC handler ...

Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-02-20T22:01:21Z

Pull x86 apic changes from Ingo Molnar: "The main changes in this cycle were: - Re-activate the hw IRQ resend mechanism that was downgraded to a sw-resend unintentionally. (Ruslan Ruslichenko) - Avoid sporadic spurious hrtimer interrupts (Frederic Weisbecker)" [ Let's see if the io_apic retrigger ends up surviving this release, it got reverted last time because it found problems elsewhere - Linus ] * 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/apic: Fix a typo in a comment line x86/ioapic: Restore IO-APIC irq_chip retrigger callback x86/apic: Implement set_state_oneshot_stopped() callback x86/apic: Fix typos in comments

Merge branches 'x86/cache', 'x86/debug' and 'x86/irq' into x86/urgent

2017-02-20T13:16:58Z

Pick up simple singular commits from their topic branches. Signed-off-by: Ingo Molnar

PCI/MSI: Remove pci_msi_domain_{alloc,free}_irqs()

2017-02-10T20:30:33Z

Just call the msi_* version directly instead of having trivial wrappers for one or two callsites. Signed-off-by: Christoph Hellwig Signed-off-by: Bjorn Helgaas Reviewed-by: Thomas Gleixner