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* [IA64] SGI Altix : fix pcibr_dmamap_ate32() bugMike Habeck2007-04-061-2/+6
| | | | | | | | On a SGI Altix TIOCP based PCI bus we need to include the ATE_PIO attribute bit if we're mapping a 32bit MSI address. Signed-off-by: Mike Habeck <habeck@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* Altix: ACPI SSDT PCI device supportJohn Keller2007-02-021-2/+4
| | | | | | | | | | | | | | | | | | | | Add SN platform support for running with an ACPI capable PROM that defines PCI devices in SSDT tables. There is a SSDT table for every occupied slot on a root bus, containing info for every PPB and/or device on the bus. The SSDTs will be dynamically loaded/unloaded at hotplug enable/disable. Platform specific information that is currently passed via a SAL call, will now be passed via the Vendor resource in the ACPI Device object(s) defined in each SSDT. Signed-off-by: John Keller <jpk@sgi.com> Cc: Greg KH <greg@kroah.com> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Len Brown <len.brown@intel.com>
* Altix: Add initial ACPI IO supportJohn Keller2006-12-012-34/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | First phase in introducing ACPI support to SN. In this phase, when running with an ACPI capable PROM, the DSDT will define the root busses and all SN nodes (SGIHUB, SGITIO). An ACPI bus driver will be registered for the node devices, with the acpi_pci_root_driver being used for the root busses. An ACPI vendor descriptor is now used to pass platform specific information for both nodes and busses, eliminating the need for the current SAL calls. Also, with ACPI support, SN fixup code is no longer needed to initiate the PCI bus scans, as the acpi_pci_root_driver does that. However, to maintain backward compatibility with non-ACPI capable PROMs, none of the current 'fixup' code can been deleted, though much restructuring has been done. For example, the bulk of the code in io_common.c is relocated code that is now common regardless of what PROM is running, while io_acpi_init.c and io_init.c contain routines specific to an ACPI or non ACPI capable PROM respectively. A new pci bus fixup platform vector has been created to provide a hook for invoking platform specific bus fixup from pcibios_fixup_bus(). The size of io_space[] has been increased to support systems with large IO configurations. Signed-off-by: John Keller <jpk@sgi.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] ia64/sn __iomem annotationsAl Viro2006-10-102-22/+22
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] more ia64 irq handlersAl Viro2006-10-091-2/+2
| | | | | | | | Cast to (void *) in request_irq() argument is stupid and only hides problems... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells2006-10-052-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
* [PATCH] proper flags type of spin_lock_irqsave()Alexey Dobriyan2006-10-012-2/+2
| | | | | | | | | | | | Convert various spin_lock_irqsave() callers to correctly use `unsigned long'. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Miles Bader <uclinux-v850@lsi.nec.co.jp> Cc: "Luck, Tony" <tony.luck@intel.com> Acked-by: Kyle McMartin <kyle@mcmartin.ca> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [IA64] sparse cleanupsKeith Owens2006-08-021-3/+3
| | | | | | | | | Fix some sparse warnings on ia64. Large constants that should be long instead of int. Use NULL instead of 0. Add some missing __iomem casts. Replace a non-C99 structure assignment. Signed-off-by: Keith Owens <kaos@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [PATCH] irq-flags: IA64: Use the new IRQF_ constantsThomas Gleixner2006-07-023-3/+3
| | | | | | | | | | | | Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [IA64-SGI] fix prom revision checks in SN kernelAaron Young2006-06-281-1/+1
| | | | | | | | | | | The following patch fixes two spots in the SN kernel that check a fixed prom revision number to determine prom feature support. These checks are only valid on shub1 systems. They are invalid on shub2 systems which have a different prom with different revision numbers. Signed-off-by: Aaron Young <ayoung@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* Auto-update from upstreamTony Luck2006-06-234-45/+100
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| * [PATCH] PCI: altix: msi supportMark Maule2006-06-214-45/+100
| | | | | | | | | | | | | | | | MSI callouts for altix. Involves a fair amount of code reorg in sn irq.c code as well as adding some extensions to the altix PCI provider abstaction. Signed-off-by: Mark Maule <maule@sgi.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | [IA64-SGI] fix SGI Altix tioce_bus_fixup() bugMike Habeck2006-06-211-2/+2
|/ | | | | | | | | The following patch fixes a bug in the SGI Altix tioce_bus_fixup() code. ce_dre_comp_err_addr needs to be zero'd out not ~0ULL. As a result completion errors weren't being captured. Signed-off-by: Mike Habeck <habeck@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64-SGI] fix SGI Altix tioce_reserve_m32() bugMike Habeck2006-04-271-3/+3
| | | | | | | | | The following patch fixes a bug in the SGI Altix tioce_reserve_m32() code. The bug was that we could walking past the end of the CE ASIC 32/40bit PMU ATE Buffer, resulting in a PIO Reply Error. Signed-off-by: Mike Habeck <habeck@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* Merge branch 'release' of ↵Linus Torvalds2006-03-251-0/+17
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] New IA64 core/thread detection patch [IA64] Increase max node count on SN platforms [IA64] Increase max node count on SN platforms [IA64] Increase max node count on SN platforms [IA64] Increase max node count on SN platforms [IA64] Tollhouse HP: IA64 arch changes [IA64] cleanup dig_irq_init [IA64] MCA recovery: kernel context recovery table IA64: Use early_parm to handle mvec_name and nomca [IA64] move patchlist and machvec into init section [IA64] add init declaration - nolwsys [IA64] add init declaration - gate page functions [IA64] add init declaration to memory initialization functions [IA64] add init declaration to cpu initialization functions [IA64] add __init declaration to mca functions [IA64] Ignore disabled Local SAPIC Affinity Structure in SRAT [IA64] sn_check_intr: use ia64_get_irr() [IA64] fix ia64 is_hugepage_only_range
| * [IA64] Tollhouse HP: IA64 arch changesPrarit Bhargava2006-03-241-0/+17
| | | | | | | | | | | | | | | | | | arch/ia64/sn and include/asm-ia64/sn changes required to support Tollhouse system PCI hotplug, fixes the ia64_sn_sysctl_ioboard_get call, and introduces the PRF_HOTPLUG_SUPPORT feature bit. Signed-off-by: Prarit Bhargava <prarit@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | [PATCH] s/;;/;/gAlexey Dobriyan2006-03-241-1/+1
|/ | | | | | Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Pull altix-ce1.0-asic into release branchTony Luck2006-03-211-23/+303
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| * [IA64-SGI] driver bugfixes and hardware workarounds for CE1.0 asicMark Maule2006-01-261-23/+303
| | | | | | | | | | | | | | | | Various bugfixes and hardware bug workarounds necessary for the rev 1.0 version of the altix TIO CE asic. Signed-off-by: Mark Maule <maule@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | [IA64-SGI] sn2 minor fixes and cleanupsJes Sorensen2006-02-154-42/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | General SN2 code cleanup: - Do not initialize global variables to zero - Use kzalloc instead of kmalloc+memset - Check kmalloc return values - Do not obfuscate spin lock calls - Remove some unused code - Various formatting cleanups Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | Pull sn-recursive-flags-for-select-builds into release branchTony Luck2006-02-062-0/+4
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| * | [IA64-SGI] Recursive flags do not work for selective buildsKeith Owens2006-01-262-0/+4
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | arch/ia64/sn/Makefile sets CPPFLAGS, expecting that setting to propogate to all the subdirectories. For a normal build with its recursive descent it does work, but doing a selective build like 'make arch/ia64/sn/kernel/io_init.i' does not do a recursive descent, it goes directly to arch/ia64/sn/kernel/Makefile so the flags do not get set. To support selective builds, set the flags in all the subordinate Makefiles. Signed-off-by: Keith Owens <kaos@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | [IA64-SGI] sn_dma_alloc_coherent should use gfp flagsTakashi Iwai2006-01-241-2/+2
|/ | | | | | | | | | | Takashi helped us track down a bad page state bug we thought was coming from alsa. It turns out we weren't paying attention to the gfp flags that were passed in to sn_dma_alloc_coherent(). From: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Edwards <edwardsg@sgi.com> Signed-off-by: Mark Maule <maule@sgi.com> Signed-off-by: Jes Sorensen <jes@sgi.com>
* [IA64-SGI] pass segment# on SN_SAL_IOIF_SLOT_{DIS,EN}ABLE callsMike Habeck2006-01-171-4/+8
| | | | | | | | Bugfix... the altix SN_SAL_IOIF_SLOT_ENABLE & SN_SAL_IOIF_SLOT_DISABLE SAL calls need to pass the segment# down Signed-off-by: Mike Habeck <habeck@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64] Cleanup of arch/ia64/sn and include/asm-ia64/snPrarit Bhargava2006-01-166-102/+102
| | | | | | | | Replace uintX_t declarations with uX declarations. Replace intX_t declarations with sX declarations. Signed-off-by: Prarit Bhargava <prarit@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64-SGI] Fix sn_flush_device_kernel & spinlock initializationPrarit Bhargava2006-01-132-26/+28
| | | | | | | | | | | | | | | | | | | | | | This patch separates the sn_flush_device_list struct into kernel and common (both kernel and PROM accessible) structures. As it was, if the size of a spinlock_t changed (due to additional CONFIG options, etc.) the sal call which populated the sn_flush_device_list structs would erroneously write data (and cause memory corruption and/or a panic). This patch does the following: 1. Removes sn_flush_device_list and adds sn_flush_device_common and sn_flush_device_kernel. 2. Adds a new SAL call to populate a sn_flush_device_common struct per device, not per widget as previously done. 3. Correctly initializes each device's sn_flush_device_kernel spinlock_t struct (before it was only doing each widget's first device). Signed-off-by: Prarit Bhargava <prarit@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [PATCH] ia64 sn __iomem annotationsAl Viro2005-12-152-30/+30
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [IA64] Replace kcalloc(1, with kzalloc.Panagiotis Issaris2005-11-101-3/+3
| | | | | | | Conversion from kcalloc(1, to kzalloc. Signed-off-by: Panagiotis Issaris <takis@issaris.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64] altix: misc pci interrupt related fixesMark Maule2005-11-082-3/+3
| | | | | | | Fix a couple of altix interrupt related bugs. Signed-off-by: Mark Maule <maule@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* Merge branch 'release' of ↵Linus Torvalds2005-10-284-58/+109
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
| * Pull sn_pci_legacy_read-write into release branchTony Luck2005-10-281-0/+46
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| | * [IA64-SGI] fix sn_pci_legacy_read/fix sn_pci_legacy_writeMark Maule2005-09-231-0/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a #define for SN_SAL_IOIF_PCI_SAFE and makes that the preferred method of implementing sn_pci_legacy_read() and sn_pci_legacy_write(). This SAL call has been present in SGI proms since version 4.10. If the SN_SAL_IOIF_PCI_SAFE call fails, revert to the previous code for compatability with older proms. Signed-off-by: Mark Maule <maule@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | Pull altix-mmr into release branchTony Luck2005-10-283-58/+63
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| | * [IA64] Need to include <asm/sn/io.h> in a few more places.Tony Luck2005-09-093-0/+3
| | | | | | | | | | | | Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * [IA64-SGI] volatile semantics in places where it seems necessaryMark Maule2005-09-073-58/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Resend using accessors instead of volatile qualifiers per hch comments, and easier to understand convenience macros per rja comments. Patch to apply volatile semantics when accessing MMR's in various SN files. Signed-off-by: Mark Maule <maule@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | | [PATCH] gfp_t: dma-mapping (ia64)Al Viro2005-10-281-1/+1
|/ / | | | | | | | | | | | | | | ... and related annotations for amd64 - swiotlb code is shared, but prototypes are not. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] IA64: convert kcalloc to kzallocPekka Enberg2005-09-071-4/+4
|/ | | | | | | | | This patch converts kcalloc(1, ...) calls to use the new kzalloc() function. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [IA64] altix: Abstract irq_affinity at the sn pci providerMark Maule2005-08-263-4/+44
| | | | | | | | Altix patch to abstract irq_affinity down to the pci provider level since different SGI hardware implements this in different ways. Signed-off-by: Mark Maule <maule@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64] - SGI SN hwperf enhancements -Mark Goodwin2005-08-241-6/+14
| | | | | | | | | Update the SN pci device info to use the nearest node function to allocate driver memory on the nearest node (rather than defaulting to node 0). Signed-off-by: Mark Goodwin <markgw@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64-SGI] - New SN hardware support - cpu_relaxJack Steiner2005-08-171-1/+2
| | | | | | | Add a few missing calls to "hint @pause". Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64-SGI] - New SN hardware support - use_alias_spaceJack Steiner2005-08-171-1/+1
| | | | | | | | | Use local SHUB alias space when referencing MMRs that are known to be node local. There is a slight performance benefit & code simplification. Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64-SGI] sn pci provider for TIOCE (pciMark Maule2005-08-112-1/+734
| | | | | | | | Altix patch to add an SN pci provider for TIOCE, which is SGI's PCI Express implementation. Signed-off-by: Mark Maule <maule@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64-SGI] add support for TIO huge-windowMark Maule2005-08-111-22/+33
| | | | | | | | | Altix patch to add TIO "huge-window" address support to sn_dma_flush(). Update copyright in affected files. Signed-off-by: Mark Maule <maule@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64-SGI] abstract force_interrupt() mechanismMark Maule2005-08-112-0/+5
| | | | | | | | Altix patch to abstract the force_interrupt() mechanism away from the pcibr provider. Signed-off-by: Mark Maule <maule@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64-SGI] altix: cosmetic rename of SGI_PCIBR_ERRORMark Maule2005-08-111-1/+1
| | | | | | | | Cosmetic altix patch to rename SGI_PCIBR_ERROR to something more generic and remove a duplicate #define. Signed-off-by: Mark Maule <maule@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64-SGI] Altix only: Add PCI Domain number support.Colin Ngam2005-08-112-6/+10
| | | | | | | This patch enables PCI Domain numbering on Altix. Signed-off-by: Colin Ngam <cngam@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64] Altix pcibus_to_node implementationChristoph Lameter2005-07-123-5/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Altix subarch does not provide node information via ACPI. Instead hooks are used to fixup pci structures. This patch determines the nodes for Altix PCI busses. Remote Bridges: --------------- Altix supports remote I/O nodes without memory or processors but with bridges. The TIOCA type of bridge is an AGP bridge and the PROM provides information about the closest node. That information will be returned by pcibus_to_node. The TIOCP remote bridge type is a PCI bridge but the PROM does not provide a closest node id. pcibus_to_node will return -1 for devices on those bridges meaning that device control structures may be allocated on any node. Safeguard: ---------- Should the fixups result in invalid node information for a pci controller then a warning will be printed and pcibus_to_node will return -1. This patch also fixes the "FIXME" in sn_dma_alloc_coherent. This means that dma_alloc_coherent will now use alloc_pages_node to allocate memory local to the node that the PCI device is connected to. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64] hotplug/ia64: SN Hotplug Driver - SN Hotplug Driver codePrarit Bhargava2005-07-061-0/+37
| | | | | | | | | | This patch is the SGI hotplug driver and additional changes required for the driver. These modifications include changes to the SN io_init.c code for memory management, the inclusion of new SAL calls to enable and disable PCI slots, and a hotplug-style driver. Signed-off-by: Prarit Bhargava <prarit@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64] hotplug/ia64: SN Hotplug Driver - new SN PROM version codePrarit Bhargava2005-07-061-2/+1
| | | | | | | | | This patch is a rewrite of the code to check the PROM version. The current code has some deficiences in the way PROM comparisons were made. The minimum value of PROM that will boot has also been changed to 4.04. Signed-off-by: Prarit Bhargava <prarit@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64] hotplug/ia64: SN Hotplug Driver: moving of header filesPrarit Bhargava2005-07-065-21/+20
| | | | | | | | | This patch moves header files out of the arch/ia64/sn directories and into include/asm-ia64/sn. These files were being included by other subsystems and should be under include/asm-ia64/sn. Signed-off-by: Prarit Bhargava <prarit@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
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