Commit graph

76 commits

Author SHA1 Message Date
Jeremy Higdon
c63c58056e [IA64] fix PCI DMA flag propagation on SN (Altix) with PICs
We recently discovered a problem with passing of DMA attributes on SN
systems with the older PIC chips.

[akpm@linux-foundation.org: coding-style fixes]

Signed-off-by: Jeremy Higdon <jeremy@sgi.com>
Cc: <habeck@sgi.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2009-03-06 10:41:13 -08:00
John Keller
175add1981 [IA64] SN specific version of dma_get_required_mask()
Create a platform specific version of dma_get_required_mask()
for ia64 SN Altix. All SN Altix platforms support 64 bit DMA
addressing regardless of the size of system memory.
Create an ia64 machvec for dma_get_required_mask, with the
SN version unconditionally returning DMA_64BIT_MASK.

Signed-off-by: John Keller <jpk@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2009-01-15 10:42:16 -08:00
Julia Lawall
6bf6a1a493 [IA64] arch/ia64/sn/pci/tioca_provider.c: introduce missing kfree
Error handling code following a kmalloc should free the allocated data.

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-09-10 10:49:36 -07:00
FUJITA Tomonori
8d8bb39b9e dma-mapping: add the device argument to dma_mapping_error()
Add per-device dma_mapping_ops support for CONFIG_X86_64 as POWER
architecture does:

This enables us to cleanly fix the Calgary IOMMU issue that some devices
are not behind the IOMMU (http://lkml.org/lkml/2008/5/8/423).

I think that per-device dma_mapping_ops support would be also helpful for
KVM people to support PCI passthrough but Andi thinks that this makes it
difficult to support the PCI passthrough (see the above thread).  So I
CC'ed this to KVM camp.  Comments are appreciated.

A pointer to dma_mapping_ops to struct dev_archdata is added.  If the
pointer is non NULL, DMA operations in asm/dma-mapping.h use it.  If it's
NULL, the system-wide dma_ops pointer is used as before.

If it's useful for KVM people, I plan to implement a mechanism to register
a hook called when a new pci (or dma capable) device is created (it works
with hot plugging).  It enables IOMMUs to set up an appropriate
dma_mapping_ops per device.

The major obstacle is that dma_mapping_error doesn't take a pointer to the
device unlike other DMA operations.  So x86 can't have dma_mapping_ops per
device.  Note all the POWER IOMMUs use the same dma_mapping_error function
so this is not a problem for POWER but x86 IOMMUs use different
dma_mapping_error functions.

The first patch adds the device argument to dma_mapping_error.  The patch
is trivial but large since it touches lots of drivers and dma-mapping.h in
all the architecture.

This patch:

dma_mapping_error() doesn't take a pointer to the device unlike other DMA
operations.  So we can't have dma_mapping_ops per device.

Note that POWER already has dma_mapping_ops per device but all the POWER
IOMMUs use the same dma_mapping_error function.  x86 IOMMUs use device
argument.

[akpm@linux-foundation.org: fix sge]
[akpm@linux-foundation.org: fix svc_rdma]
[akpm@linux-foundation.org: build fix]
[akpm@linux-foundation.org: fix bnx2x]
[akpm@linux-foundation.org: fix s2io]
[akpm@linux-foundation.org: fix pasemi_mac]
[akpm@linux-foundation.org: fix sdhci]
[akpm@linux-foundation.org: build fix]
[akpm@linux-foundation.org: fix sparc]
[akpm@linux-foundation.org: fix ibmvscsi]
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Muli Ben-Yehuda <muli@il.ibm.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Avi Kivity <avi@qumranet.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-26 12:00:03 -07:00
Arthur Kepner
309df0c503 dma/ia64: update ia64 machvecs, swiotlb.c
Change all ia64 machvecs to use the new dma_*map*_attrs() interfaces.
Implement the old dma_*map_*() interfaces in terms of the corresponding new
interfaces.  For ia64/sn, make use of one dma attribute,
DMA_ATTR_WRITE_BARRIER.  Introduce swiotlb_*map*_attrs() functions.

Signed-off-by: Arthur Kepner <akepner@sgi.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Jes Sorensen <jes@sgi.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Roland Dreier <rdreier@cisco.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: David Miller <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Grant Grundler <grundler@parisc-linux.org>
Cc: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29 08:06:12 -07:00
Jeff Garzik
9010eff0ea [IA64] minor irq handler cleanups
- remove unused 'irq' argument from pfm_do_interrupt_handler()

- remove pointless cast to void*

- add KERN_xxx prefix to printk()

- remove braces around singleton C statement

- in tioce_provider.c, start tioce_dma_consistent() and
  tioce_error_intr_handler() function declarations in column 0

This change's main purpose is to prepare for the patchset in
jgarzik/misc-2.6.git#irq-remove, that explores removal of the
never-used 'irq' argument in each interrupt handler.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-04-22 08:56:58 -07:00
Harvey Harrison
d4ed80841a [IA64] remove remaining __FUNCTION__ occurrences
__FUNCTION__ is gcc-specific, use __func__

Long lines have been kept where they exist, some small spacing changes
have been done.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-03-06 09:19:27 -08:00
Matthew Wilcox
b6ce068a12 Change pci_raw_ops to pci_raw_read/write
We want to allow different implementations of pci_raw_ops for standard
and extended config space on x86.  Rather than clutter generic code with
knowledge of this, we make pci_raw_ops private to x86 and use it to
implement the new raw interface -- raw_pci_read() and raw_pci_write().

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-10 12:52:46 -08:00
Jeff Garzik
15aafa2f9d Remove pointless casts from void pointers
Mostly in and around irq handlers.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: "Luck Tony" <tony.luck@intel.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Cc: Karsten Keil <kkeil@suse.de>
Acked-by: "John W. Linville" <linville@tuxdriver.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06 10:41:01 -08:00
Joe Perches
313d8e57b0 [IA64] Two trivial spelling fixes
s/addres/address/
s/performanc/performance/

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-12-18 17:02:21 -08:00
Jens Axboe
58b053e4ce Update arch/ to use sg helpers
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-22 21:19:59 +02:00
Linus Torvalds
821f3eff7c Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: (40 commits)
  kbuild: introduce ccflags-y, asflags-y and ldflags-y
  kbuild: enable 'make CPPFLAGS=...' to add additional options to CPP
  kbuild: enable use of AFLAGS and CFLAGS on commandline
  kbuild: enable 'make AFLAGS=...' to add additional options to AS
  kbuild: fix AFLAGS use in h8300 and m68knommu
  kbuild: check for wrong use of CFLAGS
  kbuild: enable 'make CFLAGS=...' to add additional options to CC
  kbuild: fix up CFLAGS usage
  kbuild: make modpost detect unterminated device id lists
  kbuild: call export_report from the Makefile
  kbuild: move Kai Germaschewski to CREDITS
  kconfig/menuconfig: distinguish between selected-by-another options and comments
  kconfig: tristate choices with mixed tristate and boolean values
  include/linux/Kbuild: remove duplicate entries
  kbuild: kill backward compatibility checks
  kbuild: kill EXTRA_ARFLAGS
  kbuild: fix documentation in makefiles.txt
  kbuild: call make once for all targets when O=.. is used
  kbuild: pass -g to assembler under CONFIG_DEBUG_INFO
  kbuild: update _shipped files for kconfig syntax cleanup
  ...

Fix up conflicts in arch/um/sys-{x86_64,i386}/Makefile manually.
2007-10-16 11:23:06 -07:00
Jens Axboe
9b6eccfccb IA64: sg chaining support
This updates the ia64 iommu/pci dma mappers to sg chaining.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-16 11:27:26 +02:00
Sam Ravnborg
c01b171d91 ia64: fix sn to add include files using EXTRA_CFLAGS
Changing the global CPPFLAGS is not the recommended way
to add additional include dirs.
Changed to use EXTRA_CFLAGS.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Jes Sorensen <jes@sgi.com>
2007-10-12 21:15:31 +02:00
John Keller
6e9de18120 [IA64] SN: Add support for CPU disable
Add additional support for CPU disable on SN platforms.
Correctly setup the smp_affinity mask for I/O error IRQs.
Restrict the use of the feature to Altix 4000 and 450 systems
running with a CPU disable capable PROM, and do not allow disabling
of CPU 0.

Signed-off-by: John Keller <jpk@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-09-01 02:49:57 -07:00
Jes Sorensen
256a7e097b [IA64] silence GCC ia64 unused variable warnings
Tell GCC to stop spewing out unnecessary warnings for unused variables
passed to functions as pointers for ia64 files.

Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-07-11 11:40:42 -07:00
Jes Sorensen
1ee27a4eed [IA64] Make SN2 PCI code use ioremap rather than manually mangle the address
This one changes the SN2 specific PCI drivers to use ioremap() for
obtaining the real address to access for the PCI registers instead of
manually calculating them with __IA64_UNCACHED_OFFSET.

The patch should have no real change when running on a normal Linux
kernel, but when running as a paravirtualized it is needed.

Signed-off-by: Jes Sorenson <jes@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-06-26 13:35:45 -07:00
Simon Arlott
72fdbdce3d [IA64] spelling fixes: arch/ia64/
Spelling and apostrophe fixes in arch/ia64/.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-05-11 14:55:43 -07:00
Mike Habeck
2e0d232bff [IA64] SGI Altix : fix pcibr_dmamap_ate32() bug
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>
2007-04-06 15:38:12 -07:00
John Keller
6f09a9250a Altix: ACPI SSDT PCI device support
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>
2007-02-02 22:14:35 -05:00
John Keller
8ea6091f50 Altix: Add initial ACPI IO support
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>
2006-12-01 14:36:57 -08:00
Al Viro
a9f627c9df [PATCH] ia64/sn __iomem annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-10 15:37:22 -07:00
Al Viro
a23b7cb998 [PATCH] more ia64 irq handlers
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>
2006-10-09 14:19:07 -07:00
David Howells
7d12e780e0 IRQ: Maintain regs pointer globally rather than passing to IRQ handlers
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)
2006-10-05 15:10:12 +01:00
Alexey Dobriyan
c53421b18f [PATCH] proper flags type of spin_lock_irqsave()
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>
2006-10-01 00:39:21 -07:00
Keith Owens
e037cda559 [IA64] sparse cleanups
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>
2006-08-02 16:03:44 -07:00
Thomas Gleixner
121a4226e8 [PATCH] irq-flags: IA64: Use the new IRQF_ constants
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>
2006-07-02 13:58:47 -07:00
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
Tony Luck
8cf60e04a1 Auto-update from upstream 2006-06-23 13:46:23 -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
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
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
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
Tony Luck
a4e817ba24 Pull altix-ce1.0-asic into release branch 2006-03-21 08:18:26 -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
Tony Luck
27ee6e0592 Pull sn-recursive-flags-for-select-builds into release branch 2006-02-06 09:23:51 -08:00
Mark Maule
13938ca7a1 [IA64-SGI] driver bugfixes and hardware workarounds for CE1.0 asic
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>
2006-01-26 13:56:09 -08:00
Keith Owens
103ec0910d [IA64-SGI] Recursive flags do not work for selective builds
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>
2006-01-26 13:17:34 -08:00
Takashi Iwai
dc64161343 [IA64-SGI] sn_dma_alloc_coherent should use gfp flags
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>
2006-01-24 14:30:56 -08:00
Mike Habeck
ac354a899b [IA64-SGI] pass segment# on SN_SAL_IOIF_SLOT_{DIS,EN}ABLE calls
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>
2006-01-17 10:22:46 -08:00
Prarit Bhargava
53493dcf6e [IA64] Cleanup of arch/ia64/sn and include/asm-ia64/sn
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>
2006-01-16 19:54:40 -08:00
Prarit Bhargava
6d6e420005 [IA64-SGI] Fix sn_flush_device_kernel & spinlock initialization
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>
2006-01-13 14:13:08 -08:00
Al Viro
b3e5b5b227 [PATCH] ia64 sn __iomem annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-15 10:04:31 -08:00
Panagiotis Issaris
baf47fb660 [IA64] Replace kcalloc(1, with kzalloc.
Conversion from kcalloc(1, to kzalloc.

Signed-off-by: Panagiotis Issaris <takis@issaris.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-11-10 11:28:20 -08:00
Mark Maule
6fb93a92ec [IA64] altix: misc pci interrupt related fixes
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>
2005-11-08 10:07:09 -08:00
Linus Torvalds
8a212ab6b8 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 2005-10-28 21:09:26 -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