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  1. 21 Nov, 2005 1 commit
  3. 27 Oct, 2005 1 commit
    • Dean Roe's avatar
      [IA64] - Avoid slow TLB purges on SGI Altix systems · c1902aae
      Dean Roe authored 
      

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: default avatarDean Roe <roe@sgi.com>
Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
      c1902aae
  5. 15 Sep, 2005 1 commit
    • Jack Steiner's avatar
      [IA64] Cleanup use of various #defines related to nodes · 24ee0a6d
      Jack Steiner authored 
      

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: default avatarJack Steiner <steiner@sgi.com>
Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
      24ee0a6d
  7. 25 Aug, 2005 1 commit
  9. 24 Aug, 2005 4 commits
  11. 17 Aug, 2005 2 commits
  13. 28 Jun, 2005 1 commit
    • Prarit Bhargava's avatar
      [IA64] sparse cleanup of shub_mmr.h · 8e4641b3
      Prarit Bhargava authored 
      

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: default avatarPrarit Bhargava <prarit@sgi.com>
Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
      8e4641b3
  15. 25 Apr, 2005 3 commits
  17. 16 Apr, 2005 1 commit
    • Linus Torvalds's avatar
      Linux-2.6.12-rc2 · 1da177e4
      Linus Torvalds authored 
      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!
      1da177e4