Commit Graph

188 Commits

Author SHA1 Message Date
Aaron Young
d3e5e1a1b4 [IA64-SGI] fix prom revision checks in SN kernel
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>
2006-06-28 10:02:42 -07:00
Jack Steiner
9d56d878ae [IA64-SGI] - Pass OS logical cpu number to the SN prom (bios)
Pass the OS logical cpu number to the PROM. This allows PROM
to log the OS logical cpu number in error records viewed thru POD.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-06-28 09:56:55 -07:00
Ingo Molnar
34af946a22 [PATCH] spin/rwlock init cleanups
locking init cleanups:

 - convert " = SPIN_LOCK_UNLOCKED" to spin_lock_init() or DEFINE_SPINLOCK()
 - convert rwlocks in a similar manner

this patch was generated automatically.

Motivation:

 - cleanliness
 - lockdep needs control of lock initialization, which the open-coded
   variants do not give
 - it's also useful for -rt and for lock debugging in general

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:39 -07:00
Tony Luck
8cf60e04a1 Auto-update from upstream 2006-06-23 13:46:23 -07:00
Dean Nelson
929f97276b [PATCH] change gen_pool allocator to not touch managed memory
Modify the gen_pool allocator (lib/genalloc.c) to utilize a bitmap scheme
instead of the buddy scheme.  The purpose of this change is to eliminate
the touching of the actual memory being allocated.

Since the change modifies the interface, a change to the uncached allocator
(arch/ia64/kernel/uncached.c) is also required.

Both Andrey Volkov and Jes Sorenson have expressed a desire that the
gen_pool allocator not write to the memory being managed. See the
following:

  http://marc.theaimsgroup.com/?l=linux-kernel&m=113518602713125&w=2
  http://marc.theaimsgroup.com/?l=linux-kernel&m=113533568827916&w=2

Signed-off-by: Dean Nelson <dcn@sgi.com>
Cc: Andrey Volkov <avolkov@varma-el.com>
Acked-by: Jes Sorensen <jes@trained-monkey.org>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-23 07:42:49 -07:00
Yasunori Goto
762834e8bf [PATCH] Unify pxm_to_node() and node_to_pxm()
Consolidate the various arch-specific implementations of pxm_to_node() and
node_to_pxm() into a single generic version.

Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Andi Kleen <ak@muc.de>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: "Brown, Len" <len.brown@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-23 07:42:48 -07:00
Mike Habeck
f640f94ec4 [IA64-SGI] fix SGI Altix tioce_bus_fixup() bug
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>
2006-06-21 14:47:06 -07:00
Jack Steiner
a1d7057727 [IA64-SGI] SN topology fix for large systems
There is an SN bug in sn_hwperf.c that affects systems with 1024n or 1024p.
The bug manifests itself 2 ways: IO interrupts are not always
targeted to the nearest node, and 2) the "cat /proc/sgi_sn/sn_topology"
commands fails with "cannot allocate memory".

The code is using the wrong macros for validating node numbers.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-06-21 14:33:56 -07:00
Mark Maule
83821d3f55 [PATCH] PCI: altix: msi support
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>
2006-06-21 11:59:59 -07:00
Mark Maule
10083072bf [PATCH] PCI: per-platform IA64_{FIRST,LAST}_DEVICE_VECTOR definitions
Abstract IA64_FIRST_DEVICE_VECTOR/IA64_LAST_DEVICE_VECTOR since SN platforms
use a subset of the IA64 range.  Implement this by making the above macros
global variables which the platform can override in it setup code.

Also add a reserve_irq_vector() routine used by SN to mark a vector's as
in-use when that weren't allocated through assign_irq_vector().

Signed-off-by: Mark Maule <maule@sgi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-21 11:59:59 -07:00
Mike Habeck
cda3d4a069 [IA64-SGI] fix SGI Altix tioce_reserve_m32() bug
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>
2006-04-27 14:32:07 -07:00
Jack Steiner
dd4cb9f8ac [IA64-SGI] - Reduce overhead of reading sn_topology
MPI programs using certain debug options have a long
startup time. This was traced to a "vmalloc/vfree" in
the code that reads /proc/sgi_sn/sn_topology. On large
systems, vfree requires an IPI to all cpus to do TLB
purging.

Replace the vmalloc/vfree with kmalloc/kfree. Although
the size of the structure being allocated is unknown, it
will not not exceed 96 bytes.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-04-27 14:29:05 -07:00
Jack Steiner
f0fe253c47 [IA64-SGI] - Fix discover of nearest cpu node to IO node
Fix a bug that causes discovery of the nearest node/cpu to
a TIO (IO node) to fail.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-04-27 14:28:37 -07:00
Jesper Juhl
cbf283c048 [IA64] Remove redundant NULL checks before kfree
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-04-20 10:11:09 -07:00
Tony Luck
27f4aa3db0 [IA64] 'msg' may be used uninitialized in xpc_initiate_allocate()
Found by gcc4.1 and reported by Dean Nelson.

Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-04-04 14:11:49 -07:00
Linus Torvalds
d1127e40e8 Merge branch 'release' of 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] ioremap() should prefer WB over UC
  [IA64] Add __mca_table to the DISCARD list in gate.lds
  [IA64] Move __mca_table out of the __init section
  [IA64] simplify some condition checks in iosapic_check_gsi_range
  [IA64] correct some messages and fixes some minor things
  [IA64-SGI] fix for-loop in sn_hwperf_geoid_to_cnode()
  [IA64-SGI] sn_hwperf use of num_online_cpus()
  [IA64] optimize flush_tlb_range on large numa box
  [IA64] lazy_mmu_prot_update needs to be aware of huge pages
2006-03-30 12:38:18 -08:00
Andrew Morton
ec1b9466cb [PATCH] ia64: const f_ops fix
Tweak the proc setup code so things work OK with const
proc_dir_entry.proc_fops.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-28 09:16:05 -08:00
Dean Roe
769ebc66de [IA64-SGI] fix for-loop in sn_hwperf_geoid_to_cnode()
Fix a for-loop in sn_hwperf_geoid_to_cnode().  It needs to loop over
num_cnodes to ensure it can still process TIO nodes in addition to
compute nodes on systems with many nodes.  Interim fix until better
support for many (>265) nodes is complete.

Signed-off-by: Dean Roe <roe@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-03-28 08:39:10 -08:00
hawkes@sgi.com
e6ef0fca2c [IA64-SGI] sn_hwperf use of num_online_cpus()
Eliminate an unnecessary -- and flawed -- use of the expensive
num_online_cpus().

Signed-off-by: John Hawkes <hawkes@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-03-27 13:47:44 -08:00
Bjorn Helgaas
b2c99e3c70 [PATCH] EFI: keep physical table addresses in efi structure
Almost all users of the table addresses from the EFI system table want
physical addresses.  So rather than doing the pa->va->pa conversion, just keep
physical addresses in struct efi.

This fixes a DMI bug: the efi structure contained the physical SMBIOS address
on x86 but the virtual address on ia64, so dmi_scan_machine() used ioremap()
on a virtual address on ia64.

This is essentially the same as an earlier patch by Matt Tolentino:
	http://marc.theaimsgroup.com/?l=linux-kernel&m=112130292316281&w=2
except that this changes all table addresses, not just ACPI addresses.

Matt's original patch was backed out because it caused MCAs on HP sx1000
systems.  That problem is resolved by the ioremap() attribute checking added
for ia64.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Matt Domsch <Matt_Domsch@dell.com>
Cc: "Tolentino, Matthew E" <matthew.e.tolentino@intel.com>
Cc: "Brown, Len" <len.brown@intel.com>
Cc: Andi Kleen <ak@muc.de>
Acked-by: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26 08:56:54 -08:00
Linus Torvalds
7d14f145f8 Merge branch 'release' of 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
2006-03-25 08:49:25 -08:00
Prarit Bhargava
f90aa8c4fe [IA64] Tollhouse HP: IA64 arch changes
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>
2006-03-24 13:13:06 -08:00
Alexey Dobriyan
53b3531bbb [PATCH] s/;;/;/g
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:24 -08:00
Bjorn Helgaas
9a4e5549b7 [IA64] sn_check_intr: use ia64_get_irr()
Use the recently-added ia64_get_irr() rather than duplicating the code.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-03-22 14:36:55 -08:00
Tony Luck
133a58c1fd Pull sn2-reduce-kmalloc-wrap into release branch 2006-03-21 08:22:56 -08:00
Tony Luck
ae02e964b6 Pull icc-cleanup into release branch 2006-03-21 08:22:17 -08:00
Tony Luck
409761bb6a Pull sn2-mmio-writes into release branch
Hand-fixed conflicts:
	include/asm-ia64/machvec_sn2.h

Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-03-21 08:21:26 -08:00
Tony Luck
a4e817ba24 Pull altix-ce1.0-asic into release branch 2006-03-21 08:18:26 -08:00
Bjorn Helgaas
6c5e62159c [IA64] don't report !sn2 or !summit hardware as an error
This stuff is all in the generic ia64 kernel, and the new initcall error
reporting complains about them.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-03-07 15:26:49 -08:00
Christoph Hellwig
eb0911e27e [IA64-SGI] revert export sn_pcidev_info_get
Christoph Hellwig <hch@infradead.org> pointed that there are no
in-tree uses of this.  So revert 9c65cb9be6

Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-02-27 15:41:58 -08:00
Jes Sorensen
7aa6ba4136 [IA64-SGI] SN2-XP reduce kmalloc wrapper inlining
Take advantage of kzalloc() as well as reduce the size of code generated
for the error returns in xpc_setup_infrastructure().

Signed-off-by: Jes Sorensen <jes@sgi.com>
Acked-by: Dean Nelson <dcn@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-02-27 15:26:58 -08:00
hawkes@sgi.com
defbb2c929 [IA64] ia64: simplify and fix udelay()
The original ia64 udelay() was simple, but flawed for platforms without
synchronized ITCs:  a preemption and migration to another CPU during the
while-loop likely resulted in too-early termination or very, very
lengthy looping.

The first fix (now in 2.6.15) broke the delay loop into smaller,
non-preemptible chunks, reenabling preemption between the chunks.  This
fix is flawed in that the total udelay is computed to be the sum of just
the non-premptible while-loop pieces, i.e., not counting the time spent
in the interim preemptible periods.  If an interrupt or a migration
occurs during one of these interim periods, then that time is invisible
and only serves to lengthen the effective udelay().

This new fix backs out the current flawed fix and returns to a simple
udelay(), fully preemptible and interruptible.  It implements two simple
alternative udelay() routines:  one a default generic version that uses
ia64_get_itc(), and the other an sn-specific version that uses that
platform's RTC.

Signed-off-by: John Hawkes <hawkes@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-02-15 13:37:04 -08:00
Dean Nelson
4c2cd96696 [IA64-SGI] enforce proper ordering of callouts by XPC
Fix XPC so that it does not deliver any messages until the connected
callout has returned, as well as, prevent the disconnected callout to
occur before the disconnecting callout has returned.

Signed-off-by: Dean Nelson <dcn@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-02-15 13:35:03 -08:00
Dean Roe
c2a4969ba1 [IA64-SGI] fix the size of __sn_cnodeid_to_nasid
The __sn_cnodeid_to_nasid array was incorrectly sized at MAX_NUMNODES.
On a large system, this array could overflow.  The following patch
corrects this by defining it to MAX_COMPACT_NODES.

Signed-off-by: Dean Roe <roe@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-02-15 13:33:48 -08:00
Mark Maule
9c65cb9be6 [IA64-SGI] export sn_pcidev_info_get
Export sn_pcidev_info_get.

Signed-off-by Mark Maule <maule@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-02-15 13:28:48 -08:00
Jes Sorensen
26d10915de [IA64-SGI] remove compile time warning
This one falls into the "present for Andrew Morton" category to address
his wishlist for a compiler warning free build ;-)

Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-02-15 13:27:02 -08:00
Jes Sorensen
d3454344b3 [IA64] remove obsolete corporate address
Remove obsolete SGI address

Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-02-15 13:25:37 -08:00
Jes Sorensen
8ed9b2c7a8 [IA64-SGI] sn2 minor fixes and cleanups
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>
2006-02-15 13:24:45 -08:00
Prarit Bhargava
b6bb761897 [IA64-SGI] Small cleanup for misuse of list_for_each to list_for_each_safe.
Patch was suggested by Kenneth W. Chen here

Signed-off-by: Prarit Bhargava <prarit@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-02-09 14:14:52 -08:00
Prarit Bhargava
8b34ff427d [IA64-SGI] Hotplug driver related fix in the SN ia64 code.
Remove an erroneous kfree, and unlink the pcidev_info struct from the
pcidev_info list prior to free'ing the pcidev_info struct.

Signed-off-by: Prarit Bhargava <prarit@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-02-09 14:12:24 -08:00
Linus Torvalds
0bdd340c09 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 2006-02-08 17:06:51 -08:00
Jes Sorensen
f478af9dc5 [IA64] prevent sn2 specific code to be run in generic kernels
Prevent SN2 specific code to be executed on non SN2 platforms when
running a generic kernel.

Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-02-08 11:57:16 -08:00
Al Viro
4fb7d9827e [PATCH] drive_info removal outside of arch/i386
drive_info is used only by hd.c and that happens under #ifdef __i386__.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2006-02-07 20:56:47 -05:00
Tony Luck
d6e56a2a08 [IA64] Fix CONFIG_PRINTK_TIME
There were two problems with enabling the PRINTK_TIME config
option:
1) The first calls to printk() occur before per-cpu data virtual
address is pinned into the TLB, so sched_clock() can fault.
2) sched_clock() is based on ar.itc, which may not be synchronized
across cpus.

Ken Chen started this patch, Tony Luck tinkered with it, and Jes
Sorensen perfected it.

Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-02-07 15:25:57 -08:00
Jack Steiner
dcc1dd2366 [IA64-SGI] - Eliminate SN pio_phys_xxx macros. Move to assembly
Rewrite the SN pio_phys_xxx macros in assembly language. This
avoids issues with the Intel icc compiler. Function call
overhead is not an issue - the functions reference PIOs
and take 100's nsec to complete.

In addition, the functions should likely be in assembly
language anyway - they reference memory using physical
addressing mode. One function executes with psr.ic disabled.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-02-07 09:24:14 -08:00
Russ Anderson
913e4a7557 [IA64-SGI] Shub2 BTE address fix
After converting the cpu physical address to shub2 physical
addressing, the address was run through TO_PHYS() which
clobbered a high node offset bit causing the BTE to fail
on shub2 nodes with large memory.  This fix corrects
that problem.

Signed-off-by: Russ Anderson (rja@sgi.com)
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-02-06 09:28:10 -08:00
Tony Luck
27ee6e0592 Pull sn-recursive-flags-for-select-builds into release branch 2006-02-06 09:23:51 -08:00
Robin Holt
7c6c663629 [IA64-SGI] Fix XPC code which sleeps with spin_lock_irqsave().
During some testing, we got a warning about trying to allocate
memory while holding a lock.  This fixes that problem.

Signed-off-by: Robin Holt <holt@sgi.com>
Acked-by: Dean Nelson <dcn@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-02-02 13:37:46 -08:00
Jes Sorensen
2fcc3db0cc [IA64-SGI] sn2 housekeeping
Maintenance patch:
 - Add missing __init calls
 - Do not zero initialize global variables
 - No need to typecast function call returns to void
 - Some formatting

Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-02-02 13:35:59 -08:00
Mark Maule
a80dcc0b96 [IA64-SGI] disable msi for all altix pci devices
Temporary patch to make pci_enable_msi() fail gracefully on altix.  Will be
removed after 2.6.16 releases and the msi abstraction patches start flowing.

Signed-off-by: Mark Maule <maule@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-02-02 13:23:02 -08:00