Commit Graph

72 Commits

Author SHA1 Message Date
Jack Steiner 771388dc7d [IA64-SGI] support for older versions of PROM
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>
2005-11-21 14:17:28 -08:00
Mark Maule 48b1dcc5d8 [IA64] altix: fix copyright in tioce .h files
Fix up copyright in tioce header files

Signed-off-by: Mark Maule <maule@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-11-18 13:06:03 -08:00
Tony Luck fac84ef267 Pull xpc-disengage into release branch 2005-10-28 15:27:03 -07:00
Tony Luck 556902cd2d Pull remove-sn-bist-lock into release branch 2005-10-28 14:32:44 -07:00
Tony Luck a1e78db3f5 Pull define-node-cleanup into release branch 2005-10-28 13:24:06 -07:00
Tony Luck fbbb0bd1f6 Pull sn_pci_legacy_read-write into release branch 2005-10-28 13:23:50 -07:00
Tony Luck 0d9136fdbc Pull altix-mmr into release branch 2005-10-28 11:15:08 -07:00
Tony Luck 9189674026 Pull altix-fpga-reset into release branch 2005-10-28 11:14:47 -07:00
Dean Nelson e54af724c1 [IA64-SGI] fixes for XPC disengage and open/close protocol
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>
2005-10-25 16:27:37 -07:00
Dean Roe 3673555457 [IA64-SGI] Remove references to the SN bist_lock
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>
2005-10-04 09:28:00 -07:00
Jack Steiner 59c422358d [IA64-SGI] Increase max system size of SGI SN systems
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>
2005-09-28 14:32:57 -07:00
Mark Maule 61b9cf7c6c [IA64-SGI] fix sn_pci_legacy_read/fix sn_pci_legacy_write
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>
2005-09-23 11:21:59 -07:00
Jack Steiner 24ee0a6d7b [IA64] Cleanup use of various #defines related to nodes
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>
2005-09-15 16:31:12 -07:00
Tony Luck d67eb16f5d Pull sn-features into release branch 2005-09-11 14:34:23 -07:00
Mark Maule 5fbcf9a5c6 [IA64-SGI] volatile semantics in places where it seems necessary
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>
2005-09-07 16:23:41 -07:00
Dean Nelson a607c38971 [IA64-SGI] get XPC to cleanly disengage from remote memory references
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>
2005-09-06 16:15:38 -07:00
Bruce Losure 25732ad493 [IA64] Altix patch for fpga reset
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>
2005-09-06 14:16:01 -07:00
Jack Steiner a1cddb8892 [IA64-SGI] Add new vendor-specific SAL calls for:
- 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>
2005-08-31 11:00:53 -07:00
Tony Luck e438befd76 [IA64-SGI] One new use of "UNCACHED" needed fixing for sn2 region cleanup
Some shub2 changes were not in the tree when Greg cleaned up the sn2
region definitions in 1b66776da7, so this
one didn't get fixed.

Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-08-29 16:13:36 -07:00
Tony Luck 3290580285 Pull rationalise-regions into release branch 2005-08-29 15:50:32 -07:00
Mark Maule 8409668b56 [IA64] altix: Abstract irq_affinity at the sn pci provider
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>
2005-08-26 12:09:01 -07:00
Russ Anderson 5b9021bc58 [IA64] SGI SN remove redundant partition SAL call
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>
2005-08-24 16:26:13 -07:00
Mark Goodwin 60a3ba0bb4 [IA64] - SGI SN hwperf enhancements -
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>
2005-08-24 16:24:42 -07:00
Mark Goodwin ecc3c30ae3 [IA64] - SGI SN hwperf enhancements - export_pci_topology
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>
2005-08-24 16:23:39 -07:00
Greg Edwards 1b66776da7 [IA64] clean up sn2 region definitions
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>
2005-08-24 15:37:26 -07:00
Jack Steiner 470ceb05d9 [IA64-SGI] - New SN hardware support - ptc_fixes
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>
2005-08-17 15:32:24 -07:00
Jack Steiner 68b9753f47 [IA64-SGI] - New SN hardware support - cpu_relax
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>
2005-08-17 15:31:53 -07:00
Jack Steiner 3d14487b26 [IA64-SGI] - New SN hardware support - addr_macros
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>
2005-08-17 15:29:11 -07:00
Mark Maule c9221da9f2 [IA64-SGI] sn pci provider for TIOCE (pci
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>
2005-08-11 15:56:31 -07:00
Mark Maule 5b53ed1f2e [IA64-SGI] add support for TIO huge-window
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>
2005-08-11 15:37:13 -07:00
Mark Maule 735e60f4c6 [IA64-SGI] abstract force_interrupt() mechanism
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>
2005-08-11 15:36:39 -07:00
Mark Maule 89963d16dc [IA64-SGI] altix: cosmetic rename of SGI_PCIBR_ERROR
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>
2005-08-11 15:36:00 -07:00
Colin Ngam 674c6479b7 [IA64-SGI] Altix only: Add PCI Domain number support.
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>
2005-08-11 15:35:13 -07:00
Christoph Lameter 7c2a6c62c0 [IA64] Altix pcibus_to_node implementation
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>
2005-07-12 16:12:55 -07:00
Greg Edwards 60a762b6a6 [IA64] remove CONFIG_IA64_SGI_SN_SIM
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>
2005-07-12 14:13:08 -07:00
Olaf Hering d0feafbf14 [IA64] remove linux/version.h include from arch/ia64
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>
2005-07-11 09:58:52 -07:00
Tony Luck 8d7e35174d [IA64] fix generic/up builds
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>
2005-07-06 18:18:10 -07:00
Prarit Bhargava 7fe4c1b168 [IA64] hotplug/ia64: SN Hotplug Driver - PREEMPT/pcibus_info fix
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>
2005-07-06 15:30:25 -07:00
Prarit Bhargava 6f354b014b [IA64] hotplug/ia64: SN Hotplug Driver - SN Hotplug Driver code
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>
2005-07-06 15:29:53 -07:00
Prarit Bhargava 283c7f6ac6 [IA64] hotplug/ia64: SN Hotplug Driver - new SN PROM version code
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>
2005-07-06 15:29:13 -07:00
Prarit Bhargava c13cf3714f [IA64] hotplug/ia64: SN Hotplug Driver: moving of header files
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>
2005-07-06 15:26:51 -07:00
Prarit Bhargava cb4cb2cb9b [IA64] hotplug/ia64: SN Hotplug Driver: SN IRQ Fixes
This patch  fixes the SN IRQ code such that cpu affinity and
Hotplug can modify IRQ values.  The sn_irq_info structures are now locked
using a RCU lock mechanism to avoid lock contention in the lost interrupt
WAR code.

Signed-off-by: Prarit Bhargava <prarit@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-07-06 14:59:44 -07:00
Bruce Losure c1ffb6a8aa [IA64-SGI] Altix patch to tiocx, add subsys_initcall
This patch fixes an ordering issue between the init code for the
tiocx bus driver and tiocx-related device drivers.   Also adds
a new brick to the list of known FPGA bricks.

Signed-off-by: Bruce Losure <blosure@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-06-28 09:53:42 -07:00
Prarit Bhargava 92a582ed27 [IA64] sparse cleanup of TIOCA files
This patch is a sparse compile cleanup of tioca_provider.c, sn_hwperf.h, and
tioca_provider.h.  Each of these files had sparse warnings when
compiled.

Signed-off-by: Prarit Bhargava <prarit@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-06-28 09:50:48 -07:00
Colin Ngam 71030994a7 [IA64-SGI] Fix TIO IOSPACE MMR Addres
This patches provides support on Shub2 for the separate TIO IOSPACE MMR.  This 
patch is SN specific.

Signed-off-by: Colin Ngam <cngam@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-06-28 09:48:53 -07:00
Jack Steiner 71a5d027c9 [IA64-SGI] - new macros for SGI SN simulator
This patch changes some macros that are used when running kernel on the
SGI simulator.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-06-28 09:45:45 -07:00
Prarit Bhargava 8e4641b3ee [IA64] sparse cleanup of shub_mmr.h
This patch is a sparse compile cleanup of shub_mmr.h using both the defconfig
and the sn2_defconfig config files.

The issue with this file was the missing usage of __IA64_UL_CONST wrapper.
This wrapper is defined in include/asm-ia64/types.h and wraps a long
constant definition with UL or with nothing depending on its usage in the
kernel.  The missing wrapper caused many sparse compile errors like

        warning: constant 0x0x0000000010000380 so big it is long

Signed-off-by: Prarit Bhargava <prarit@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-06-28 09:37:16 -07:00
Jes Sorensen 65ed0b337b [PATCH] SN2 XPC build patches
This patch contains the bits to make the XPC code use the uncached
allocator rather than calling into the mspec driver.  It also includes the
mspec.h header which is required to build the XPC modules.

Signed-off-by: Jes Sorensen <jes@wildopensource.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-21 18:46:18 -07:00
Russ Anderson 6872ec5489 [IS64-SGI] Set Altix error handling features
The 2.6 kernel has CPE error thresholding.
This patch lets SAL know of this error handling feature.
The changes are SN specific.

Signed-off-by: Russ Anderson (rja@sgi.com)
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-05-17 13:53:21 -07:00
Russ Anderson 8eac375715 [IA64-SGI] Make Altix SAL call to POD reentrant
Change the SAL call for POD mode to be reentrant.
This change is SN specific.

Signed-off-by: Russ Anderson (rja@sgi.com)
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-05-17 13:50:10 -07:00