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* [IA64-SGI] Add PROM feature set for device flush listPrarit Bhargava2006-01-26
| | | | | | | Introduce PRF_DEVICE_FLUSH_LIST flag for older PROMs. Signed-off-by: Prarit Bhargava <prarit@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64-SGI] add sn_feature_sets bitDean Roe2006-01-24
| | | | | | | | | | SGI's prom has added a new feature which avoids an Altix-specific MCA that can occur with excessive use of ia64_pal_cache_flush. This patch adds the #define to the sn_feature_sets.h to reflect that bit is taken. Signed-off-by: Dean Roe <roe@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64-SGI] sn2 mutex conversionJes Sorensen2006-01-17
| | | | | | | | | Migrate sn2 code to use mutex and completion events rather than semaphores. Signed-off-by: Jes Sorensen <jes@sgi.com> Acked-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64] Cleanup of arch/ia64/sn and include/asm-ia64/snPrarit Bhargava2006-01-16
| | | | | | | | 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>
* [PATCH] Altix: ioc3 serial supportPatrick Gefre2006-01-14
| | | | | | | | | | | | | | | Add driver support for a 2 port PCI IOC3-based serial card on Altix boxes: This is a re-submission. On the original submission I was asked to organize the code so that the MIPS ioc3 ethernet and serial parts could be used with this driver. Stanislaw Skowronek was kind enough to provide the shim layer for this - thanks Stanislaw. This patch includes the shim layer and the Altix PCI ioc3 serial driver. The MIPS merged ioc3 ethernet and serial support is forthcoming. Signed-off-by: Patrick Gefre <pfg@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [IA64-SGI] Fix sn_flush_device_kernel & spinlock initializationPrarit Bhargava2006-01-13
| | | | | | | | | | | | | | | | | | | | | | 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>
* [IA64-SGI] Altix BTE error handling fixesRuss Anderson2006-01-13
| | | | | | | | | | Altix (shub2) pushes the BTE clean-up into SAL. This patch correctly interfaces with the now implemented SAL call. It also fixes a bug when delaying clean-up to allow busy BTEs to complete (or error out). Signed-off-by: Russ Anderson <rja@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64-SGI] move xpc.h to include/asm-ia64/sn (cleanup)Dean Nelson2006-01-13
| | | | | | | | Cleanup a few items after moving xpc.h from arch/ia64/sn/kernel to include/asm-ia64/sn. Signed-off-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64-SGI] move xpc.h to include/asm-ia64/snDean Nelson2006-01-13
| | | | | | | Move xpc.h from arch/ia64/sn/kernel to include/asm-ia64/sn without change. Signed-off-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64-SGI] ensure XPC disengage request is processedDean Nelson2006-01-13
| | | | | | | | | | | This patch fixes a problem in XPC disengage processing whereby it was not seeing the request to disengage from a remote partition, so the disengage wasn't happening. The disengagement is suppose to transpire during the time a XPC channel is disconnecting, and should be completed before the channel is declared to be disconnected. Signed-off-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64-SGI] altix: pci_window fixupJohn Keller2005-12-06
| | | | | | | | | | | | | | Altix only patch to add fixup code that sets up pci_controller->window. This code is a temporary fix until ACPI support on Altix is added. Also, corrects the usage of pci_dev->sysdata, which had previously been used to reference platform specific device info, to now point to a pci_controller struct. Signed-off-by: John Keller <jpk@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64-SGI] support for older versions of PROMJack Steiner2005-11-21
| | | | | | | | | Add support for old versions of the SN PROMs. Eventually this support will be deleted but it is useful right now to continue supporting older PROMs. Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64] altix: fix copyright in tioce .h filesMark Maule2005-11-18
| | | | | | | Fix up copyright in tioce header files Signed-off-by: Mark Maule <maule@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* Pull xpc-disengage into release branchTony Luck2005-10-28
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| * [IA64-SGI] fixes for XPC disengage and open/close protocolDean Nelson2005-10-25
| | | | | | | | | | | | | | | | | | This patch addresses a few issues with the open/close protocol that were revealed by the newly added disengage functionality combined with more extensive testing. Signed-off-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * [IA64-SGI] get XPC to cleanly disengage from remote memory referencesDean Nelson2005-09-06
| | | | | | | | | | | | | | | | | | | | When XPC is being shutdown (i.e., rmmod, reboot) it doesn't ensure that other partitions with whom it was connected have completely disengaged from any attempt at cross-partition memory references. This can lead to MCAs in any of these other partitions when the partition is reset. Signed-off-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | Pull remove-sn-bist-lock into release branchTony Luck2005-10-28
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| * | [IA64-SGI] Remove references to the SN bist_lockDean Roe2005-10-04
| | | | | | | | | | | | | | | | | | | | | | | | Remove all references to the bist_lock in the SN code as it is not used for anything. Signed-off-by: Dean Roe <roe@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | | Pull define-node-cleanup into release branchTony Luck2005-10-28
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| * | | [IA64-SGI] Increase max system size of SGI SN systemsJack Steiner2005-09-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Increase the maximum system size of SGI SN systems. Note that this is not the maximum SSI size. The maximum system size is the number of nodes in the numalink domain. Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | | [IA64] Cleanup use of various #defines related to nodesJack Steiner2005-09-15
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some of the SN code & #defines related to compact nodes & IO discovery have gotten stale over the years. This patch attempts to clean them up. Some of the various SN MAX_xxx #defines were also unclear & misused. The primary changes are: - use MAX_NUMNODES. This is the generic linux #define for the number of nodes that are known to the generic kernel. Arrays & loops for constructs that are 1:1 with linux-defined nodes should use the linux #define - not an SN equivalent. - use MAX_COMPACT_NODES for MAX_NUMNODES + NUM_TIOS. This is the number of nodes in the SSI system. Compact nodes are a hack to get around the IA64 architectural limit of 256 nodes. Large SGI systems have more than 256 nodes. When we upgrade to ACPI3.0, I _hope_ that all nodes will be real nodes that are known to the generic kernel. That will allow us to delete the notion of "compact nodes". - add MAX_NUMALINK_NODES for the total number of nodes that are in the numalink domain - all partitions. - simplified (understandable) scan_for_ionodes() - small amount of cleanup related to cnodes Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | | Pull sn_pci_legacy_read-write into release branchTony Luck2005-10-28
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| * | | [IA64-SGI] fix sn_pci_legacy_read/fix sn_pci_legacy_writeMark Maule2005-09-23
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Luck2005-10-28
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| * | | [IA64-SGI] volatile semantics in places where it seems necessaryMark Maule2005-09-07
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | | Pull altix-fpga-reset into release branchTony Luck2005-10-28
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| * | [IA64] Altix patch for fpga resetBruce Losure2005-09-06
| |/ | | | | | | | | | | | | | | | | 1) workaround a h/w reset issue 2) to improve the determination of FPGA-based h/w in the arch/ia64/sn/kernel/tiocx code. Signed-off-by: Bruce Losure <blosure@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | Pull sn-features into release branchTony Luck2005-09-11
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| * [IA64-SGI] Add new vendor-specific SAL calls for:Jack Steiner2005-08-31
| | | | | | | | | | | | | | | | | | | | | | | | - notifying the PROM of specific features that are supported by the OS. This is used to enable PROM feature if and only if the corresponding feature is implemented in the OS - fetch feature sets that are supported by the current PROM. This allows the OS to selectively enable features when the PROM support is available. Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | [IA64-SGI] One new use of "UNCACHED" needed fixing for sn2 region cleanupTony Luck2005-08-29
| | | | | | | | | | | | | | | | Some shub2 changes were not in the tree when Greg cleaned up the sn2 region definitions in 1b66776da71e33dff5edcc0b096ec3b7c40c75ad, so this one didn't get fixed. Signed-off-by: Tony Luck <tony.luck@intel.com>
* | Pull rationalise-regions into release branchTony Luck2005-08-29
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| * | [IA64] clean up sn2 region definitionsGreg Edwards2005-08-24
| |/ | | | | | | | | | | | | Clean up some duplicate region definitions in sn2 code. Signed-off-by: Greg Edwards <edwardsg@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | [IA64] altix: Abstract irq_affinity at the sn pci providerMark Maule2005-08-26
| | | | | | | | | | | | | | | | 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 remove redundant partition SAL callRuss Anderson2005-08-24
| | | | | | | | | | | | | | | | | | | | Clean up of SGI SN partitioning related code. The SN_SAL_GET_SN_INFO SAL call returns the partition ID, making the SN_SAL_SYSCTL_PARTITION_GET SAL call redundant. Remove sn_partid and use sn_partition_id. Signed-off-by: Russ Anderson (rja@sgi.com) Signed-off-by: Tony Luck <tony.luck@intel.com>
* | [IA64] - SGI SN hwperf enhancements -Mark Goodwin2005-08-24
| | | | | | | | | | | | | | | | | | Add a new exported function for determining the nearest node with CPUs for I/O nodes and fix a bug where the hwperf dynamic misc device was being registered before misc_init(). Signed-off-by: Mark Goodwin <markgw@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | [IA64] - SGI SN hwperf enhancements - export_pci_topologyMark Goodwin2005-08-24
| | | | | | | | | | | | | | Bugfix to export PCI topology information in /proc/sgi_sn/sn_topology. Signed-off-by: Mark Goodwin <markgw@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | [IA64-SGI] - New SN hardware support - ptc_fixesJack Steiner2005-08-17
| | | | | | | | | | | | | | | | | | | | | | | | Shub2 provides a much improved mechanism for issuing internode TLB purges. Add code to support the newer mechanism. There is also some debug code (disabled) that is useful for testing. Collect statistics on the number, type & duration of TLB purges. This data will be useful for making future improvements in the algorithms. Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | [IA64-SGI] - New SN hardware support - cpu_relaxJack Steiner2005-08-17
| | | | | | | | | | | | | | 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 - addr_macrosJack Steiner2005-08-17
| | | | | | | | | | | | | | | | | | | | | | | | Update the SN address macros so that they work on both shub1 and shub2. Most of the code to support shub2 was added last year but this patch fixes a few bugs and adds macros to help generate both processor-specific physical addresses & numalink physical addresses. More cleanup & optimization will be done later. 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 Maule2005-08-11
| | | | | | | | | | | | | | | | 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 Maule2005-08-11
| | | | | | | | | | | | | | | | | | 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 Maule2005-08-11
| | | | | | | | | | | | | | | | 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 Maule2005-08-11
| | | | | | | | | | | | | | | | 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 Ngam2005-08-11
|/ | | | | | | 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 Lameter2005-07-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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] remove CONFIG_IA64_SGI_SN_SIMGreg Edwards2005-07-12
| | | | | | | | | | This patch removes the CONFIG_IA64_SGI_SN_SIM option entirely, allowing any kernel bootable on sn2 to also be booted in the simulator. Boot tested on Altix and HP rx2600. Signed-off-by: Greg Edwards <edwardsg@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64] remove linux/version.h include from arch/ia64Olaf Hering2005-07-11
| | | | | | | changing CONFIG_LOCALVERSION rebuilds too much, for no appearent reason. Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64] fix generic/up buildsTony Luck2005-07-06
| | | | | | | | | | | | | | Jesse Barnes provided the original version of this patch months ago, but other changes kept conflicting with it, so it got deferred. Greg Edwards dug it out of obscurity just over a week ago, and almost immediately another conflicting patch appeared (Bob Picco's memory-less nodes). I've resolved the conflicts and got it running again. CONFIG_SGI_TIOCX is set to "y" in defconfig, which causes a Tiger to not boot (oops in tiocx_init). But that can be resolved later ... get this in now before it gets stale again. Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64] hotplug/ia64: SN Hotplug Driver - PREEMPT/pcibus_info fixPrarit Bhargava2005-07-06
| | | | | | | | | This patch fixes an issue with the PROM and a kernel running with CONFIG_PREEMPT enabled. When CONFIG_PREEMPT is enabled, the size of a spinlock_t changes -- resulting in the PROM writing to an incorrect location. Signed-off-by: Prarit Bhargava <prarit@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64] hotplug/ia64: SN Hotplug Driver - SN Hotplug Driver codePrarit Bhargava2005-07-06
| | | | | | | | | | 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>
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