linux/arch/powerpc
Anton Blanchard 7aa241fdce powerpc: Fix bogus it_blocksize in VIO iommu code
When looking at some issues with the virtual ethernet driver I noticed
that TCE allocation was following a very strange pattern:

address 00e9000 length 2048
address 0409000 length 2048 <-----
address 0429000 length 2048
address 0449000 length 2048
address 0469000 length 2048
address 0489000 length 2048
address 04a9000 length 2048
address 04c9000 length 2048
address 04e9000 length 2048
address 4009000 length 2048 <-----
address 4029000 length 2048

Huge unexplained gaps in what should be an empty TCE table. It turns out
it_blocksize, the amount we want to align the next allocation to, was
c0000000fe903b20. Completely bogus.

Initialise it to something reasonable in the VIO IOMMU code, and use kzalloc
everywhere to protect against this when we next add a non compulsary
field to iommu code and forget to initialise it.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-08-24 15:26:31 +10:00
..
boot Merge remote branch 'jwb/merge' into merge 2010-08-24 14:36:45 +10:00
configs powerpc: Trim defconfigs 2010-08-09 11:19:16 +10:00
include/asm powerpc: Inline ppc64_runlatch_off 2010-08-24 15:26:30 +10:00
kernel powerpc: Fix bogus it_blocksize in VIO iommu code 2010-08-24 15:26:31 +10:00
kvm Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2010-08-05 09:03:46 -07:00
lib Merge commit 'paulus-perf/master' into next 2010-07-09 11:25:48 +10:00
math-emu
mm powerpc: Export memstart_addr and kernstart_addr on ppc64 2010-08-24 15:26:26 +10:00
oprofile powerpc/oprofile: Don't build server oprofile drivers on 64-bit BookE 2010-07-14 14:13:54 +10:00
platforms powerpc: Fix bogus it_blocksize in VIO iommu code 2010-08-24 15:26:31 +10:00
sysdev Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-08-12 09:11:31 -07:00
xmon powerpc/book3e: Add TLB dump in xmon for Book3E 2010-07-14 14:13:52 +10:00
Kconfig Merge branch 'timers-timekeeping-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-08-06 13:18:29 -07:00
Kconfig.debug powerpc: Unconditionally enabled irq stacks 2010-06-15 15:02:37 +10:00
Makefile powerpc: fix build with make 3.82 2010-08-09 14:14:05 +10:00
relocs_check.pl powerpc: Check for unsupported relocs when using CONFIG_RELOCATABLE 2009-09-24 15:31:40 +10:00