linux-toradex.git, branch v2.6.18-rc3

Linux v2.6.18-rc3

2006-07-30T06:15:36+00:00

Merge master.kernel.org:/home/rmk/linux-2.6-arm

2006-07-30T05:53:46+00:00

* master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 3734/1: Fix the unused variable warning in __iounmap()
  [ARM] 3737/1: Export ARM copy/clear_user_page symbols
  [ARM] 3736/1: xscale: don't mis-report 80219 as an iop32x
  [ARM] 3733/2: S3C24XX: Remove old IDE registers in Anubis
  [ARM] 3732/1: S3C24XX: tidy syntax in osiris and anubis machines
  [ARM] Fix SMP booting
  [ARM] 3731/1: Allow IRQ definitions of IQ80331 and IQ80332 to co-exist
  [ARM] 3730/1: ep93xx: enable usb ohci driver in the defconfig
  [ARM] Fix cats build

[PATCH] MM: Remove rogue readahead printk

2006-07-30T03:59:55+00:00

For some reason it triggers always with NFS root and spams the kernel
logs of my nfs root boxes a lot.

Signed-off-by: Andi Kleen 
Acked-by: Trond Myklebust 
Signed-off-by: Linus Torvalds

[PATCH] i386: Fix up backtrace fallback patch

2006-07-30T03:59:55+00:00

I didn't test all compilation combinations. Shame on me.
And fix a missing option in the boot option following x86-64 (Jan Beulich)

Signed-off-by: Andi Kleen 
Signed-off-by: Linus Torvalds

[PATCH] x86_64: Fix swiotlb=force

2006-07-30T03:59:55+00:00

It was broken before. But having it is important as possible hardware
bug workaround.

And previously there was no way to force swiotlb if there is another IOMMU.
Side effect is that iommu=force won't force swiotlb anymore even if there
isn't another IOMMU.

Signed-off-by: Andi Kleen 
Signed-off-by: Linus Torvalds

[PATCH] x86_64: Revert k8-bus.c northbridge access change

2006-07-30T03:59:55+00:00

As Travis Betak points out it accesses the wrong northbridge subfunction
now. Switch back to the old code.

Cc: "Travis Betak" 
Signed-off-by: Andi Kleen 
Signed-off-by: Linus Torvalds

[PATCH] x86_64: Calgary IOMMU - Multi-Node NULL pointer dereference fix

2006-07-30T03:59:55+00:00

Calgary hits a NULL pointer dereference when booting in a multi-chassis
NUMA system.  See Redhat bugzilla number 198498, found by Konrad
Rzeszutek (konradr@redhat.com).

There are many issues that had to be resolved to fix this problem.
Firstly when I originally wrote the code to handle NUMA systems, I
had a large misunderstanding that was not corrected until now.  That was
that I thought the "number of nodes online" referred to number of
physical systems connected.  So that if NUMA was disabled, there
would only be 1 node and it would only show that node's PCI bus.
In reality if NUMA is disabled, the system displays all of the
connected chassis as one node but is only ignorant of the delays
in accessing main memory.  Therefore, references to num_online_nodes()
and MAX_NUMNODES are incorrect and need to be set to the maximum
number of nodes that can be accessed (which are 8).  I created a
variable, MAX_NUM_CHASSIS, and set it to 8 to fix this.

Secondly, when walking the PCI in detect_calgary, the code only
checked the first "slot" when looking to see if a device is present.
This will work for most cases, but unfortunately it isn't always the
case.  In the NUMA MXE drawers, there are USB devices present on the
3rd slot (with slot 1 being empty).  So, to work around this, all
slots (up to 8) are scanned to see if there are any devices present.

Lastly, the bus is being enumerated on large systems in a different
way the we originally thought.  This throws the ugly logic we had
out the window.  To more elegantly handle this, I reorganized the
kva array to be sparse (which removed the need to have any bus number
to kva slot logic in tce.c) and created a secondary space array to
contain the bus number to phb mapping.

With these changes Calgary boots on an x460 with 4 nodes with and
without NUMA enabled.

Signed-off-by: Jon Mason 
Signed-off-by: Muli Ben-Yehuda 
Signed-off-by: Andi Kleen 
Signed-off-by: Linus Torvalds

[PATCH] x86_64: Calgary IOMMU - fix off by one error

2006-07-30T03:59:55+00:00

Fixed off-by-one error in detect_calgary and calgary_init which will
cause arrays to overflow.  Also, removed impossible to hit BUG_ON.

Signed-off-by: Jon Mason 
Signed-off-by: Muli Ben-Yehuda 
Signed-off-by: Andi Kleen 
Signed-off-by: Linus Torvalds

[PATCH] x86_64: On Intel systems when CPU has C3 don't use TSC

2006-07-30T03:59:55+00:00

On Intel systems generally the TSC stops in C3 or deeper,
so don't use it there. Follows similar logic on i386.

This should fix problems on Meroms.

Signed-off-by: Andi Kleen 
Signed-off-by: Linus Torvalds

[PATCH] x86_64: Update defconfig

2006-07-30T03:59:55+00:00

Update defconfig

Signed-off-by: Andi Kleen 
Signed-off-by: Linus Torvalds