litmus-rt.git/arch/ia64/lib, branch wip-default-clustering

[IA64] fix csum_ipv6_magic()

2009-09-02T16:14:48+00:00

The 32-bit parameters (len and csum) of csum_ipv6_magic() are passed in 64-bit
registers in2 and in4. The high order 32 bits of the registers were never
cleared, and garbage was sometimes calculated into the checksum.

Fix this by clearing the high order 32 bits of these registers.

Signed-off-by: Jiri Bohac 
Signed-off-by: Tony Luck

[IA64] Add Variable Page Size and IA64 Support in Intel IOMMU

2008-10-17T19:14:13+00:00

The patch contains Intel IOMMU IA64 specific code. It defines new
machvec dig_vtd, hooks for IOMMU, DMAR table detection, cache line flush
function, etc.

For a generic kernel with CONFIG_DMAR=y, if Intel IOMMU is detected,
dig_vtd is used for machinve vector. Otherwise, kernel falls back to
dig machine vector. Kernel parameter "machvec=dig" or "intel_iommu=off"
can be used to force kernel to boot dig machine vector.

Signed-off-by: Fenghua Yu 
Signed-off-by: Tony Luck

[IA64] export copy_page() to modules

2007-12-08T00:10:19+00:00

With the unionfs patch applied I get

ERROR: "copy_page" [fs/unionfs/unionfs.ko] undefined!

the other architectures (some, at least) export copy_page() so I guess ia64
should also do so.

To do this we need to move the copy_page() functions out of lib.a and into
built-in.o and add the EXPORT_SYMBOL().

Cc: Sam Ravnborg 
Cc: Kyle McMartin 
Signed-off-by: Andrew Morton 
Signed-off-by: Tony Luck

missing exports of csum_...

2007-07-17T18:01:07+00:00

Signed-off-by: Al Viro 
Acked-by: David S. Miller 
Acked-by: Geert Uytterhoeven 
Signed-off-by: Linus Torvalds

[AF_RXRPC/AFS]: Arch-specific fixes.

2007-04-27T22:28:45+00:00

Fixes for various arch compilation problems:

 (*) Missing module exports.

 (*) Variable name collision when rxkad and af_rxrpc both built in
     (rxrpc_debug).

 (*) Large constant representation problem (AFS_UUID_TO_UNIX_TIME).

 (*) Configuration dependencies.

 (*) printk() format warnings.

Signed-off-by: David Howells 
Signed-off-by: David S. Miller

[IA64] always build arch/ia64/lib/xor.o

2007-03-06T22:48:52+00:00

Always build ia64 xor.o because multiple config options now depend on it.

Necessary to build .20-mm* on ia64 when, e.g., CONFIG_ASYNC_TX_DMA is
defined.  Don't know if '_ASYNC_TX_DMA makes sense on ia64.  If not, maybe
Kconfig should preclude it.

Could have defined a Kconfig option that defaults to true if MD_RAID456 ||
ASYNC_TX_DMA to control building of xor.o, but xor.o is only 848 bytes and
this IS ia64...

Signed-off-by:  Lee Schermerhorn 
Cc: Bob Picco 
Cc: Eric Whitney 
Signed-off-by: Andrew Morton 
Signed-off-by: Tony Luck

[IA64] tidy up return value of ip_fast_csum

2006-12-07T19:19:59+00:00

While working on implementing csum_ipv6_magic, I noticed that current
version of ip_fast_csum will potentially return bits above "unsigned
short" as 1.  While no harm is done right now because all call sites
will chop off the upper bits when it uses the return value.  However,
this is still dangerous and buggy.  Here is a patch to enforce that the
function really returns unsigned short in the native register format.

The fix is free as there are plenty open slot to add one more asm instruction.

Signed-off-by: Ken Chen 
Signed-off-by: Tony Luck

[IA64] implement csum_ipv6_magic for ia64.

2006-12-07T19:17:26+00:00

The asm version is 4.4 times faster than the generic C version and
10X smaller in code size.

Signed-off-by: Ken Chen 
Signed-off-by: Tony Luck

[NET]: IA64 checksum annotations and cleanups.

2006-12-03T05:23:05+00:00

* sanitize prototypes, annotate
* ntohs -> shift in checksum calculations
* kill access_ok() in csum_partial_copy_from_user
* collapse do_csum_partial_copy_from_user

Signed-off-by: Al Viro 
Signed-off-by: David S. Miller

[PATCH] Fix RAID5 + IA64 compile

2006-08-03T17:04:27+00:00

CONFIG_MD_RAID5 became CONFIG_MD_RAID456 in drivers/md/Kconfig.  Make
the same change in arch/ia64

Signed-off-by: Prarit Bhargava 
Signed-off-by: Aron Griffis 
Acked-by: Jes Sorenson 
Signed-off-by: Tony Luck