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2023-08-31parisc: iosapic.c: Fix sparse warningsHelge Deller1-2/+2
Signed-off-by: Helge Deller <[email protected]>
2023-08-27parisc: iosapic: Convert I/O Sapic driver to use arch_initcall()Helge Deller1-4/+4
Signed-off-by: Helge Deller <[email protected]>
2023-08-22parisc: Avoid ioremap() for same addresss in iosapic_register()Helge Deller1-2/+2
The LBA has already called ioremap() to get it's virtual address, which can be used for the IOSAPIC as well. Avoid calling ioremap() again and just reuse the correct iomem address for the IOSAPIC. Signed-off-by: Helge Deller <[email protected]>
2022-10-27parisc: Export iosapic_serial_irq() symbol for serial port driverHelge Deller1-0/+1
The parisc serial port driver needs this symbol when it's compiled as module. Signed-off-by: Helge Deller <[email protected]> Reported-by: kernel test robot <[email protected]> Cc: <[email protected]>
2022-09-15parisc: remove obsolete manual allocation aligning in iosapicRolf Eike Beer1-10/+1
kmalloc() returns memory with __assume_kmalloc_alignment, which is __alignof__(unsigned long long) for parisc. Signed-off-by: Rolf Eike Beer <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-07-07genirq: Add and use an irq_data_update_affinity helperSamuel Holland1-1/+1
Some architectures and irqchip drivers modify the cpumask returned by irq_data_get_affinity_mask, usually by copying in to it. This is problematic for uniprocessor configurations, where the affinity mask should be constant, as it is known at compile time. Add and use a setter for the affinity mask, following the pattern of irq_data_update_effective_affinity. This allows the getter function to return a const cpumask pointer. Signed-off-by: Samuel Holland <[email protected]> Reviewed-by: Oleksandr Tyshchenko <[email protected]> # Xen bits Signed-off-by: Marc Zyngier <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-01-06remove ioremap_nocache and devm_ioremap_nocacheChristoph Hellwig1-1/+1
ioremap has provided non-cached semantics by default since the Linux 2.6 days, so remove the additional ioremap_nocache interface. Signed-off-by: Christoph Hellwig <[email protected]> Acked-by: Arnd Bergmann <[email protected]>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152Thomas Gleixner1-4/+1
Based on 1 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 as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <[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]>
2019-04-06Revert: parisc: Use F_EXTEND() macro in iosapic codeHelge Deller1-1/+5
Revert parts of commit 97d7e2e3fd8a ("parisc: Use F_EXTEND() macro in iosapic code"). It breaks booting the 32-bit kernel on some machines. Reported-by: Sven Schnelle <[email protected]> Tested-by: Sven Schnelle <[email protected]> Fixes: 97d7e2e3fd8a ("parisc: Use F_EXTEND() macro in iosapic code") Signed-off-by: Helge Deller <[email protected]>
2019-02-21parisc: Use F_EXTEND() macro in iosapic codeHelge Deller1-16/+1
and reduce include file list. Signed-off-by: Helge Deller <[email protected]>
2015-07-31parisc/irq: Use access helper irq_data_get_affinity_mask()Jiang Liu1-1/+1
Use access helper irq_data_get_affinity_mask() to hide implementation details of struct irq_desc. Signed-off-by: Jiang Liu <[email protected]> Cc: Konrad Rzeszutek Wilk <[email protected]> Cc: Tony Luck <[email protected]> Cc: Bjorn Helgaas <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Randy Dunlap <[email protected]> Cc: Yinghai Lu <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: James E.J. Bottomley <[email protected]> Cc: Helge Deller <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]>
2013-07-31parisc: Fix interrupt routing for C8000 serial portsThomas Bogendoerfer1-11/+27
We can't use dev->mod_index for selecting the interrupt routing entry, because it's not an index into interrupt routing table. It will be even wrong on a machine with 2 CPUs (4 cores). But all needed information is contained in the PAT entries for the serial ports. mod[0] contains the iosapic address and mod_info has some indications for the interrupt input (at least it looks like it). This patch implements the searching for the right iosapic and uses this interrupt input information. Signed-off-by: Thomas Bogendoerfer <[email protected]> Cc: <[email protected]> # 3.10 Signed-off-by: Helge Deller <[email protected]>
2013-06-18parisc: fix serial ports on C8000 workstationThomas Bogendoerfer1-0/+66
The C8000 workstation (64 bit kernel only) has a somewhat different serial port configuration than other models. Thomas Bogendoerfer sent a patch to fix this in September 2010, which was now minimally modified by me. Signed-off-by: Thomas Bogendoerfer <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2012-07-24Merge tag 'for-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pciLinus Torvalds1-1/+1
Pull PCI changes from Bjorn Helgaas: "Host bridge hotplug: - Add MMCONFIG support for hot-added host bridges (Jiang Liu) Device hotplug: - Move fixups from __init to __devinit (Sebastian Andrzej Siewior) - Call FINAL fixups for hot-added devices, too (Myron Stowe) - Factor out generic code for P2P bridge hot-add (Yinghai Lu) - Remove all functions in a slot, not just those with _EJx (Amos Kong) Dynamic resource management: - Track bus number allocation (struct resource tree per domain) (Yinghai Lu) - Make P2P bridge 1K I/O windows work with resource reassignment (Bjorn Helgaas, Yinghai Lu) - Disable decoding while updating 64-bit BARs (Bjorn Helgaas) Power management: - Add PCIe runtime D3cold support (Huang Ying) Virtualization: - Add VFIO infrastructure (ACS, DMA source ID quirks) (Alex Williamson) - Add quirks for devices with broken INTx masking (Jan Kiszka) Miscellaneous: - Fix some PCI Express capability version issues (Myron Stowe) - Factor out some arch code with a weak, generic, pcibios_setup() (Myron Stowe)" * tag 'for-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (122 commits) PCI: hotplug: ensure a consistent return value in error case PCI: fix undefined reference to 'pci_fixup_final_inited' PCI: build resource code for M68K architecture PCI: pciehp: remove unused pciehp_get_max_lnk_width(), pciehp_get_cur_lnk_width() PCI: reorder __pci_assign_resource() (no change) PCI: fix truncation of resource size to 32 bits PCI: acpiphp: merge acpiphp_debug and debug PCI: acpiphp: remove unused res_lock sparc/PCI: replace pci_cfg_fake_ranges() with pci_read_bridge_bases() PCI: call final fixups hot-added devices PCI: move final fixups from __init to __devinit x86/PCI: move final fixups from __init to __devinit MIPS/PCI: move final fixups from __init to __devinit PCI: support sizing P2P bridge I/O windows with 1K granularity PCI: reimplement P2P bridge 1K I/O windows (Intel P64H2) PCI: disable MEM decoding while updating 64-bit MEM BARs PCI: leave MEM and IO decoding disabled during 64-bit BAR sizing, too PCI: never discard enable/suspend/resume_early/resume fixups PCI: release temporary reference in __nv_msi_ht_cap_quirk() PCI: restructure 'pci_do_fixups()' ...
2012-06-13PCI: replace struct pci_bus secondary/subordinate with busn_resYinghai Lu1-1/+1
Replace the struct pci_bus secondary/subordinate members with the struct resource busn_res. Later we'll build a resource tree of these bus numbers. [bhelgaas: changelog] Signed-off-by: Yinghai Lu <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]>
2012-06-05parisc: cleanup quoted includePaul Bolle1-1/+1
A quoted include starts with a superfluous "./". Clean up that quoted include. Signed-off-by: Paul Bolle <[email protected]> Signed-off-by: Jiri Kosina <[email protected]>
2012-03-28Remove all #inclusions of asm/system.hDavid Howells1-1/+0
Remove all #inclusions of asm/system.h preparatory to splitting and killing it. Performed with the following command: perl -p -i -e 's!^#\s*include\s*<asm/system[.]h>.*\n!!' `grep -Irl '^#\s*include\s*<asm/system[.]h>' *` Signed-off-by: David Howells <[email protected]>
2011-02-10[PARISC] Convert to new irq_chip functionsThomas Gleixner1-20/+20
Convert all the parisc driver interrupt handlers (dino, eisa, gsc, iosapic and superio) as well as the cpu interrupts. Prepare show_interrupts for GENERIC_HARDIRQS_NO_DEPRECATED and finally selects that Kconfig option [jejb: compile and testing fixes] Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: James Bottomley <[email protected]>
2010-12-04parisc: convert the rest of the irq handlers to simple/percpuJames Bottomley1-0/+8
The generic conversion eliminates the spurious no_ack and no_end routines, converts all the cascaded handlers to handle_simple_irq() and makes iosapic use a modified handle_percpu_irq() to become the same as the CPU irq's. This isn't an essential change, but it eliminates the mask/unmask overhead of handle_level_irq(). Signed-off-by: James Bottomley <[email protected]> Tested-by: Helge Deller <[email protected]> Signed-off-by: Kyle McMartin <[email protected]>
2010-10-21drivers/parisc/iosapic.c: Remove unnecessary kzalloc castJoe Perches1-2/+2
Convert kzalloc to kcalloc Signed-off-by: Joe Perches <[email protected]> Reviewed-by: Grant Grundler <[email protected]> Signed-off-by: Kyle McMartin <[email protected]>
2010-10-14parisc: convert iosapic interrupts to proper flow handlersKyle McMartin1-31/+6
Shift the ->end call (cpu eoi) from __do_IRQ into our unmask handler. Also nuke some redundant code. Signed-off-by: Kyle McMartin <[email protected]>
2010-10-14parisc: convert cpu interrupts to proper flow handlersKyle McMartin1-1/+1
Only major change is renaming functions to match the conventions expected by the generic irq code. Signed-off-by: Kyle McMartin <[email protected]>
2010-10-14parisc: lay groundwork for killing __do_IRQKyle McMartin1-11/+4
Use proper accessors and handlers for generic irq cleanups. We just call back into __do_IRQ through desc->handler now, and remove the explicit calls. Signed-off-by: Kyle McMartin <[email protected]>
2009-12-16parisc: Fixup last users of irq_chip->typenameThomas Gleixner1-1/+1
The typename member of struct irq_chip was kept for migration purposes and is obsolete since more than 2 years. Fix up the leftovers. Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: Kyle McMartin <[email protected]>
2009-07-03parisc: remove obsolete hw_interrupt_typeThomas Gleixner1-1/+1
The defines and typedefs (hw_interrupt_type, no_irq_type, irq_desc_t) have been kept around for migration reasons. After more than two years it's time to remove them finally. This patch cleans up one of the remaining users. When all such patches hit mainline we can remove the defines and typedefs finally. Impact: cleanup Convert the last remaining users to struct irq_chip and remove the define. Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Kyle McMartin <[email protected]>
2009-04-28irq: change ->set_affinity() to return statusYinghai Lu1-2/+4
according to Ingo, change set_affinity() in irq_chip should return int, because that way we can handle failure cases in a much cleaner way, in the genirq layer. v2: fix two typos [ Impact: extend API ] Signed-off-by: Yinghai Lu <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Suresh Siddha <[email protected]> Cc: "Eric W. Biederman" <[email protected]> Cc: Rusty Russell <[email protected]> Cc: [email protected] LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2009-03-31parisc: iosapic: fix build breakageAlexander Beregalov1-1/+1
drivers/parisc/iosapic.c:717: error: incompatible types in assignment irq_desc::affinity was changed from cpumask_t to cpumask_var_t in 7f7ace0cda (cpumask: update irq_desc to use cpumask_var_t) Signed-off-by: Alexander Beregalov <[email protected]> Signed-off-by: Kyle McMartin <[email protected]>
2009-03-13parisc: convert cpu_check_affinity to new cpumask apiKyle McMartin1-2/+5
cpumask arg to the affinity function is now const, sort that out through the irq_desc implementations. Signed-off-by: Kyle McMartin <[email protected]>
2009-03-13parisc: fix wrong assumption about bus->selfGrant Grundler1-5/+4
Kenji Kaneshige <[email protected]> posted a patch series to linux-pci to fix a wrong assumption about pci_bus->self==NULL for all PCI host bus controllers. While PARISC platforms to not behave this way, I prefer to have the code consistent across architectures. The following patch replaces pci_bus->self with pci_bus->parent when used as a test to check for "root bus controller". Signed-off-by: Grant Grundler <[email protected]> Signed-off-by: Kyle McMartin <[email protected]>
2009-01-07PCI: parisc: use generic pci_swizzle_interrupt_pin()Bjorn Helgaas1-2/+1
Use the generic pci_swizzle_interrupt_pin() instead of arch-specific code. Acked-by: Kyle McMartin <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Signed-off-by: Jesse Barnes <[email protected]>
2008-12-13cpumask: make irq_set_affinity() take a const struct cpumaskRusty Russell1-3/+4
Impact: change existing irq_chip API Not much point with gentle transition here: the struct irq_chip's setaffinity method signature needs to change. Fortunately, not widely used code, but hits a few architectures. Note: In irq_select_affinity() I save a temporary in by mangling irq_desc[irq].affinity directly. Ingo, does this break anything? (Folded in fix from KOSAKI Motohiro) Signed-off-by: Rusty Russell <[email protected]> Signed-off-by: Mike Travis <[email protected]> Reviewed-by: Grant Grundler <[email protected]> Acked-by: Ingo Molnar <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: KOSAKI Motohiro <[email protected]>
2008-10-16generic: sparse irqs: use irq_desc() together with dyn_array, instead of ↵Yinghai Lu1-1/+3
irq_desc[] add CONFIG_HAVE_SPARSE_IRQ to for use condensed array. Get rid of irq_desc[] array assumptions. Preallocate 32 irq_desc, and irq_desc() will try to get more. ( No change in functionality is expected anywhere, except the odd build failure where we missed a code site or where a crossing commit itroduces new irq_desc[] usage. ) v2: according to Eric, change get_irq_desc() to irq_desc() Signed-off-by: Yinghai Lu <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2006-12-13[PATCH] getting rid of all casts of k[cmz]alloc() callsRobert P. J. Day1-1/+1
Run this: #!/bin/sh for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do echo "De-casting $f..." perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f done And then go through and reinstate those cases where code is casting pointers to non-pointers. And then drop a few hunks which conflicted with outstanding work. Cc: Russell King <[email protected]>, Ian Molton <[email protected]> Cc: Mikael Starvik <[email protected]> Cc: Yoshinori Sato <[email protected]> Cc: Roman Zippel <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Kyle McMartin <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Martin Schwidefsky <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: Jeff Dike <[email protected]> Cc: Greg KH <[email protected]> Cc: Jens Axboe <[email protected]> Cc: Paul Fulghum <[email protected]> Cc: Alan Cox <[email protected]> Cc: Karsten Keil <[email protected]> Cc: Mauro Carvalho Chehab <[email protected]> Cc: Jeff Garzik <[email protected]> Cc: James Bottomley <[email protected]> Cc: Ian Kent <[email protected]> Cc: Steven French <[email protected]> Cc: David Woodhouse <[email protected]> Cc: Neil Brown <[email protected]> Cc: Jaroslav Kysela <[email protected]> Cc: Takashi Iwai <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-11-30Fix misc .c/.h comment typosMatt LaPlante1-3/+3
Fix various .c/.h typos in comments (no code changes). Signed-off-by: Matt LaPlante <[email protected]> Signed-off-by: Adrian Bunk <[email protected]>
2006-10-04[PARISC] Create shared <asm/ropes.h> headerKyle McMartin1-1/+1
Pull out struct sba_device and struct lba_device into a common ropes.h header. Also fold the parisc portion of iosapic.h into this file. (Then delete the useless portion of iosapic.h) Signed-off-by: Kyle McMartin <[email protected]>
2006-10-04[PARISC] Allow nested interruptsJames Bottomley1-1/+2
Our prior mode of operation didn't allow nested interrupts because it makes the interrupt code much simpler. However, nested interrupts are better for latency. This code uses the EIEM register to simulate level interrupts and thus achieve nesting. Signed-off-by: James Bottomley <[email protected]> Signed-off-by: Kyle McMartin <[email protected]>
2006-06-29[PATCH] genirq: rename desc->handler to desc->chipIngo Molnar1-1/+1
This patch-queue improves the generic IRQ layer to be truly generic, by adding various abstractions and features to it, without impacting existing functionality. While the queue can be best described as "fix and improve everything in the generic IRQ layer that we could think of", and thus it consists of many smaller features and lots of cleanups, the one feature that stands out most is the new 'irq chip' abstraction. The irq-chip abstraction is about describing and coding and IRQ controller driver by mapping its raw hardware capabilities [and quirks, if needed] in a straightforward way, without having to think about "IRQ flow" (level/edge/etc.) type of details. This stands in contrast with the current 'irq-type' model of genirq architectures, which 'mixes' raw hardware capabilities with 'flow' details. The patchset supports both types of irq controller designs at once, and converts i386 and x86_64 to the new irq-chip design. As a bonus side-effect of the irq-chip approach, chained interrupt controllers (master/slave PIC constructs, etc.) are now supported by design as well. The end result of this patchset intends to be simpler architecture-level code and more consolidation between architectures. We reused many bits of code and many concepts from Russell King's ARM IRQ layer, the merging of which was one of the motivations for this patchset. This patch: rename desc->handler to desc->chip. Originally i did not want to do this, because it's a big patch. But having both "desc->handler", "desc->handle_irq" and "action->handler" caused a large degree of confusion and made the code appear alot less clean than it truly is. I have also attempted a dual approach as well by introducing a desc->chip alias - but that just wasnt robust enough and broke frequently. So lets get over with this quickly. The conversion was done automatically via scripts and converts all the code in the kernel. This renaming patch is the first one amongst the patches, so that the remaining patches can stay flexible and can be merged and split up without having some big monolithic patch act as a merge barrier. [[email protected]: build fix] [[email protected]: another build fix] Signed-off-by: Ingo Molnar <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-03-30[PARISC] I/O-Space must be ioremap_nocache()'dHelge Deller1-1/+1
Addresses in F-space must be accessed uncached on most parisc machines. Signed-off-by: Helge Deller <[email protected]> Signed-off-by: Kyle McMartin <[email protected]>
2006-01-22[PARISC] Use kzalloc and other janitor-style cleanupsHelge Deller1-6/+2
Helge, o Convert a bunch of kmalloc/memset uses to kzalloc. o pci.c: Add some __read_mostly annotations. o pci.c: Move constant pci_post_reset_delay to asm/pci.h o grfioctl.h: Add A4450A to comment of CRT_ID_VISUALIZE_EG. o Add some consts to perf.c/perf_images.h Matthew, o sticore.c: Add some consts to suppress compile warnings. Signed-off-by: Helge Deller <[email protected]> Signed-off-by: Matthew Wilcox <[email protected]> Signed-off-by: Kyle McMartin <[email protected]>
2005-11-17[PARISC] Add IRQ affinitiesJames Bottomley1-1/+25
This really only adds them for the machines I can check SMP on, which is CPU interrupts and IOSAPIC (so not any of the GSC based machines). With this patch, irqbalanced can be used to maintain irq balancing. Unfortunately, irqbalanced is a bit x86 centric, so it doesn't do an incredibly good job, but it does work. Signed-off-by: James Bottomley <[email protected]> Signed-off-by: Kyle McMartin <[email protected]>
2005-10-21[PARISC] Minor iosapic.c cleanupGrant Grundler1-1/+1
minor cleanup: qualify constant with "UL" Acked-by: "Hmamouche, Youssef" <[email protected]> Signed-off-by: Grant Grundler <[email protected]> Signed-off-by: Kyle McMartin <[email protected]>
2005-09-09[PATCH] more SPIN_LOCK_UNLOCKED -> DEFINE_SPINLOCK conversionsIngo Molnar1-1/+1
This converts the final 20 DEFINE_SPINLOCK holdouts. (another 580 places are already using DEFINE_SPINLOCK). Build tested on x86. Signed-off-by: Ingo Molnar <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2005-04-16Linux-2.6.12-rc2Linus Torvalds1-0/+921
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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