Commit Graph

90 Commits

Author SHA1 Message Date
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
Al Viro
06a544971f [PATCH] gfp_t: dma-mapping (ia64)
... 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>
2005-10-28 08:16:47 -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
Tony Luck
1fa9295728 [IA64] Need to include <asm/sn/io.h> in a few more places.
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-09-09 11:41:12 -07:00
Pekka Enberg
f96cb1f058 [PATCH] IA64: convert kcalloc to kzalloc
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>
2005-09-07 16:57:45 -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
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
Mark Goodwin
5390970d1c [IA64] - SGI SN hwperf enhancements -
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>
2005-08-24 16:25:21 -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
0aa2c72e59 [IA64-SGI] - New SN hardware support - use_alias_space
Use local SHUB alias space when referencing MMRs that are known
to be node local. There is a slight performance benefit & code 
simplification.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-08-17 15:29:43 -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
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
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
Mark Maule
3ea8b477b4 [IA64] altix: fix TIOCA dmamap list_add
Correct a bug where tioca_dma_mapped() is putting tioca dma map structs
on the wrong list.

Signed-off-by: Mark Maule <maule@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-05-03 13:52:22 -07:00
Mike Habeck
de7548d0e2 [IA64-SGI] Altix only: Fix for sn_dma_flush
The following patch fixes a bug in the SGI Altix sn_dma_flush code.  
sn_dma_flush is broken in 2.6.  The code isn't waiting for the DMA 
data to be flushed out of the PIC ASIC. This patch is based off the 
linux-ia64-test-2.6.12 tree

Signed-off-by: Mike Habeck <habeck@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-05-03 13:36:09 -07:00
Mark Maule
4628d7cada [IA64-SGI] disable TIOCA GART TLB prefetching
Patch to disable SGI TIOCA GART TLB prefetching due to hw bug.

Signed-off-by: Mark Maule <maule@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-04-25 13:18:02 -07:00
Mark Maule
9c90bdde77 [IA64-SGI] altix: tioca chip driver (agp)
Provide a driver for the altix TIOCA AGP chipset.  An agpgart backend will
be provided as a separate patch.

Signed-off-by: Mark Maule <maule@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-04-25 11:35:54 -07:00
Mark Maule
9b08ebd167 [IA64-SGI] sn2-move-pci-headers.patch
Move a couple of headers out of arch/ia64/sn/include/pci and into
include/asm-ia64/sn.

Signed-off-by: Mark Maule <maule@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-04-25 11:32:16 -07:00
Mark Maule
e955d82543 [IA64-SGI] sn2-pci-dma-abstraction.patch
Provide an abstraction of the altix pci dma runtime layer so that multiple
pci-based bridges can be supported.

Signed-off-by: Mark Maule <maule@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-04-25 11:26:03 -07:00
Linus Torvalds
1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00