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* [PATCH] driver kill hotplug word from sn and others fixPaul Jackson2006-01-04
| | | | | | | | | | | | | The first of these changes s/hotplug/uevent/ was needed to compile sn2_defconfig (ia64/sn). The other three files changed are blind changes of all remaining bus_type.hotplug references I could find to bus_type.uevent. This patch attempts to finish similar changes made in the gregkh-driver-kill-hotplug-word-from-driver-core Nov 22 patch. Signed-off-by: Paul Jackson <pj@sgi.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [IA64-SGI] Missed TLB flushJack Steiner2005-12-16
| | | | | | | | | | | | | | | | | | I see why the problem exists only on SN. SN uses a different hardware mechanism to purge TLB entries across nodes. It looks like there is a bug in the SN TLB flushing code. During context switch, kernel threads inherit the mm of the task that was previously running on the cpu. This confuses the code in sn2_global_tlb_purge(). The result is a missed TLB purge for the task that owns the "borrowed" mm. (I hit the problem running heavy stress where kswapd was purging code pages of a user task that woke kswapd. The user task took a SIGILL fault trying to execute code in the page that had been ripped out from underneath it). Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [PATCH] ia64 sn __iomem annotationsAl Viro2005-12-15
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [IA64-SGI] Fix SN PTC deadlock recoveryJack Steiner2005-12-06
| | | | | | | | | | | The patch that added support for a new platform chipset (shub2) broke PTC deadlock recovery on older versions of the chipset. (PTCs are the SN platform-specific method for doing a global TLB purge). This patch fixes deadlock recovery so that it works on both the old & new chipsets. Signed-off-by: Jack Steiner <steiner@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] bte_copy nasid_index fixRuss Anderson2005-11-21
| | | | | | | | The nasid_index was not being incremented if the pointer was null, causing an infinite loop. Signed-off-by: Russ Anderson (rja@sgi.com) Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64] fix bug in sn/ia64 for sparse CPU numberinghawkes@sgi.com2005-11-21
| | | | | | | | | | | The kernel's use of the for_each_*cpu(i) macros has allowed for sparse CPU numbering. When I hacked the kernel to test sparse cpu_present_map[] and cpu_possible_map[] cpumasks, I discovered one remaining spot, in sn_hwperf_ioctl() during sn initialization, that needs to be fixed. Signed-off-by: John Hawkes <hawkes@sgi.com> Signed-off-by: Dean Roe <roe@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64] Prevent sn2 ptc code from executing on all ia64 subarchesPrarit Bhargava2005-11-21
| | | | | | | | Patch to prevent sn2_ptc_init code from attempting to load on non-sn2 systems when sn2_smp.c is built-in to generic kernel. Signed-off-by: Prarit Bhargava <prarit@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64-SGI] set altix preferred consoleMark Maule2005-11-11
| | | | | | | | | | | | | Fix default VGA console on SN platforms. Since SN firmware does not pass enough ACPI information to identify VGA cards and the associated legacy IO/MEM addresses, we rely on the EFI PCDP table. Since the linux pcdp driver is optional (and overridden if console= directives are used) SN duplicates a portion of the pcdp scan code to identify if there is a usable console VGA adapter. Additionally, dup necessary pcdp related structs to avoid dragging drivers/pcdp.h into a more public location. Signed-off-by: Mark Maule <maule@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64] utilize notify_die() for XPC disengageDean Nelson2005-11-10
| | | | | | | | | | | XPC (as in arch/ia64/sn/kernel/xp*) has a need to notify other partitions (SGI Altix) whenever a partition is going down in order to get them to disengage from accessing the halting partition's memory. If this is not done before the reset of the hardware, the other partitions can find themselves encountering MCAs that bring them down. Signed-off-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64] Replace kcalloc(1, with kzalloc.Panagiotis Issaris2005-11-10
| | | | | | | 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 Maule2005-11-08
| | | | | | | 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 Torvalds2005-10-29
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
| * Pull fix-slow-tlb-purge into release branchTony Luck2005-10-28
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| | * [IA64] - Avoid slow TLB purges on SGI Altix systemsDean Roe2005-10-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | flush_tlb_all() can be a scaling issue on large SGI Altix systems since it uses the global call_lock and always executes on all cpus. When a process enters flush_tlb_range() to purge TLBs for another process, it is possible to avoid flush_tlb_all() and instead allow sn2_global_tlb_purge() to purge TLBs only where necessary. This patch modifies flush_tlb_range() so that this case can be handled by platform TLB purge functions and updates ia64_global_tlb_purge() accordingly. sn2_global_tlb_purge() now calculates the region register value from the mm argument introduced with this patch. Signed-off-by: Dean Roe <roe@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | Pull fix-bte-copy into release branchTony Luck2005-10-28
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| | * | [IA64-SGI] fix bte_copy() calling get_nasid() while preemptibleRuss Anderson2005-10-25
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | bte_copy() calls calls get_nasid(), which will get flagged if preemption if enabled. raw_smp_processor_id() is used instead. It is OK if we migrate off node. Signed-off-by: Russ Anderson (rja@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] cleanup the way XPC locates the reserved pageDean Nelson2005-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Eliminate the passing in of a scratch buffer used for locating the reserved page setup for XPC. Signed-off-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * | [IA64-SGI] XPC changes to support more than 2k nasidsDean Nelson2005-10-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | XPC needs to be changed to support up to 16k nasids on an SGI Altix system. Signed-off-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * | [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 define-node-cleanup into release branchTony Luck2005-10-28
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| | * | | [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] Need to include <asm/sn/io.h> in a few more places.Tony Luck2005-09-09
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Tony Luck <tony.luck@intel.com>
| | * | | [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>
* | | [PATCH] gfp_t: remaining bits of arch/*Al Viro2005-10-28
| | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] gfp_t: dma-mapping (ia64)Al Viro2005-10-28
|/ / | | | | | | | | | | | | | | ... 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>
* | 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>
* | | [PATCH] more SPIN_LOCK_UNLOCKED -> DEFINE_SPINLOCK conversionsIngo Molnar2005-09-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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 <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [IA64] Manual merge fix for 3 filesTony Luck2005-09-08
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | arch/ia64/Kconfig arch/ia64/kernel/acpi.c include/asm-ia64/irq.h Signed-off-by: Tony Luck <tony.luck@intel.com>
| * \ \ Merge linux-2.6 with linux-acpi-2.6Len Brown2005-09-08
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| | * | | [PATCH] IA64: convert kcalloc to kzallocPekka Enberg2005-09-07
| | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * | | Merge linux-2.6 into linux-acpi-2.6 testLen Brown2005-09-03
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| * | | [IA64] fix allnoconfig buildLen Brown2005-08-25
| | |/ | |/| | | | | | | | | | cc: Tony Luck <tony.luck@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | | [IA64] Increase max physical address for SN platformsJack Steiner2005-09-08
| | | | | | | | | | | | | | | | | | | | | Increase the value for the maximum physical address on SN systems. Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | | [IA64] ensure XPC and XPNET are loaded on sn2 platforms onlyDean Nelson2005-09-08
| |/ |/| | | | | | | | | | | | | | | These are SN2 only drivers. They should have platform checks to prevent them from doing evil stuff in GENERIC kernels. Signed-off-by: Martin Hicks <mort@sgi.com> Acked-by: Dean Nelson <dcn@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | Pull ngam-maule-steiner into release branchTony Luck2005-08-29
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| * | [IA64-SGI] fix bte_copy() calling smp_processor_id() while preemptibleRuss Anderson2005-08-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | bte_copy() calls calls smp_processor_id(), which will get flagged if preemption if enabled. raw_smp_processor_id() is used instead because we are just using it to pick a BTE interface and are not tied to a specific cpu. Signed-off-by: Russ Anderson (rja@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
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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 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>
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