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2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner1-4/+1
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Enrico Weigelt <[email protected]> Reviewed-by: Kate Stewart <[email protected]> Reviewed-by: Allison Randal <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2017-06-22ACPI: fix whitespace in pr_fmt() to align log entriesVincent Legoll1-1/+1
See this dmesg extract before the patch: [ 0.679466] ACPI: Dynamic OEM Table Load: [ 0.679470] ACPI: SSDT 0xFFFF910F6B497E00 00018A (v02 PmRef ApCst 00003000 INTL 20160422) [ 0.679579] ACPI: Executed 1 blocks of module-level executable AML code [ 0.681477] ACPI : EC: EC started [ 0.681478] ACPI : EC: interrupt blocked [ 0.684798] ACPI: Interpreter enabled [ 0.684835] ACPI: (supports S0 S3 S4 S5) Signed-off-by: Vincent Legoll <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2017-03-28ACPI: ioapic: Clear on-stack resource before using itJoerg Roedel1-0/+6
The on-stack resource-window 'win' in setup_res() is not properly initialized. This causes the pointers in the embedded 'struct resource' to contain stale addresses. These pointers (in my case the ->child pointer) later get propagated to the global iomem_resources list, causing a #GP exception when the list is traversed in iomem_map_sanity_check(). Fixes: c183619b63ec (x86/irq, ACPI: Implement ACPI driver to support IOAPIC hotplug) Signed-off-by: Joerg Roedel <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
2017-03-01x86/ioapic: Split IOAPIC hot-removal into two stepsRui Wang1-6/+16
The hot removal of IOAPIC is handling PCI and ACPI removal in one go. That only works when the PCI drivers released the interrupt resources, but breaks when a IOAPIC interrupt is still associated to a PCI device. The new pcibios_release_device() callback allows to solve that problem by splitting the removal into two steps: 1) PCI removal: Release all PCI resources including eventually not yet released IOAPIC interrupts via the new pcibios_release_device() callback. 2) ACPI removal: After release of all PCI resources the ACPI resources can be released without issue. [ tglx: Rewrote changelog ] Signed-off-by: Rui Wang <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]>
2016-08-18x86/ioapic: Fix IOAPIC failing to request resourceRui Wang1-1/+3
handle_ioapic_add() uses request_resource() to request ACPI "_CRS" resources. This can fail with the following error message: [ 247.325693] ACPI: \_SB_.IIO1.AID1: failed to insert resource This happens when there are multiple IOAPICs and DSDT groups their "_CRS" resources as the children of a parent resource, as seen from /proc/iomem: fec00000-fecfffff : PNP0003:00 fec00000-fec003ff : IOAPIC 0 fec01000-fec013ff : IOAPIC 1 fec40000-fec403ff : IOAPIC 2 In this case request_resource() fails because there's a conflicting resource which is the parent (fec0000-fecfffff). Fix it by using insert_resource() which can request resources by taking the conflicting resource as the parent. Signed-off-by: Rui Wang <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2016-08-18x86/ioapic: Fix lost IOAPIC resource after hot-removal and hotaddRui Wang1-16/+20
IOAPIC resource at 0xfecxxxxx gets lost from /proc/iomem after hot-removing and then hot-adding the IOAPIC device. After system boot, in /proc/iomem: fec00000-fecfffff : PNP0003:00 fec00000-fec003ff : IOAPIC 0 fec01000-fec013ff : IOAPIC 1 fec40000-fec403ff : IOAPIC 2 fec80000-fec803ff : IOAPIC 3 fecc0000-fecc03ff : IOAPIC 4 Then hot-remove IOAPIC 2 and hot-add it again: fec00000-fecfffff : PNP0003:00 fec00000-fec003ff : IOAPIC 0 fec01000-fec013ff : IOAPIC 1 fec80000-fec803ff : IOAPIC 3 fecc0000-fecc03ff : IOAPIC 4 The range at 0xfec40000 is lost from /proc/iomem - which is a bug. This bug happens because handle_ioapic_add() requests resources from either PCI config BAR or ACPI "_CRS", not both. But Intel platforms map the IOxAPIC registers both at the PCI config BAR (called MBAR, dynamic), and at the ACPI "_CRS" (called ABAR, static). The 0xfecX_YZ00 to 0xfecX_YZFF range appears in "_CRS" of each IOAPIC device. Both ranges should be claimed from /proc/iomem for exclusive use. Signed-off-by: Rui Wang <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2016-08-18x86/ioapic: Fix setup_res() failing to get resourceRui Wang1-1/+1
acpi_dev_filter_resource_type() returns 0 on success, and 1 on failure. A return value of zero means there's a matching resource, so we should continue within setup_res() to get the resource. Signed-off-by: Rui Wang <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2016-08-18x86/ioapic: Change prototype of acpi_ioapic_add()Rui Wang1-3/+3
Change the argument of acpi_ioapic_add() to a generic ACPI handle, and move its prototype from drivers/acpi/internal.h to include/linux/acpi.h so that it can be called from outside the pci_root driver. Signed-off-by: Rui Wang <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2015-02-05x86/irq, ACPI: Implement ACPI driver to support IOAPIC hotplugJiang Liu1-0/+229
Enable support of IOAPIC hotplug by: 1) reintroducing ACPI based IOAPIC driver 2) enhance pci_root driver to hook hotplug events The ACPI IOAPIC driver is always enabled if all of ACPI, PCI and IOAPIC are enabled. Signed-off-by: Jiang Liu <[email protected]> Cc: Konrad Rzeszutek Wilk <[email protected]> Cc: Tony Luck <[email protected]> Cc: Joerg Roedel <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Rafael J. Wysocki <[email protected]> Cc: Bjorn Helgaas <[email protected]> Cc: Randy Dunlap <[email protected]> Cc: Yinghai Lu <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Len Brown <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]>
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