linux_dsm_epyc7002/arch
Cliff Wickman 4ea3c51d5b x86: UV BAU distribution and payload MMRs
This patch correctly sets BAU memory mapped registers to point
to the sending activation descriptor table and target payload table.

The "Broadcast Assist Unit" is used for TLB shootdown in UV.

The memory mapped registers that point to sending and receiving
memory structures contain node numbers.

In one case the __pa() function did not provide the node id of
memory on blade zero in configurations where that id is nonzero.
In another case, it was assumed that memory was allocated on
the local node.  That assumption is not true in a configuration
in which the node has no memory.

Tested on the UV hardware simulator.

[ Impact: fix possible runtime crash due to incorrect TLB logic ]

Signed-off-by: Cliff Wickman <cpw@sgi.com>
LKML-Reference: <E1LuR5Z-0007An-B8@eag09.americas.sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-16 19:44:16 +02:00
..
alpha Allow rwlocks to re-enable interrupts 2009-04-02 19:05:11 -07:00
arm Allow rwlocks to re-enable interrupts 2009-04-02 19:05:11 -07:00
avr32 Simplify copy_thread() 2009-04-02 19:04:51 -07:00
blackfin Simplify copy_thread() 2009-04-02 19:04:51 -07:00
cris Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2009-04-02 21:09:10 -07:00
frv Simplify copy_thread() 2009-04-02 19:04:51 -07:00
h8300 Simplify copy_thread() 2009-04-02 19:04:51 -07:00
ia64 ia64: implement interrupt-enabling rwlocks 2009-04-02 19:05:11 -07:00
m32r Simplify copy_thread() 2009-04-02 19:04:51 -07:00
m68k Simplify copy_thread() 2009-04-02 19:04:51 -07:00
m68knommu Simplify copy_thread() 2009-04-02 19:04:51 -07:00
mips Allow rwlocks to re-enable interrupts 2009-04-02 19:05:11 -07:00
mn10300 Simplify copy_thread() 2009-04-02 19:04:51 -07:00
parisc Allow rwlocks to re-enable interrupts 2009-04-02 19:05:11 -07:00
powerpc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2009-04-02 21:09:10 -07:00
s390 Allow rwlocks to re-enable interrupts 2009-04-02 19:05:11 -07:00
sh Allow rwlocks to re-enable interrupts 2009-04-02 19:05:11 -07:00
sparc Allow rwlocks to re-enable interrupts 2009-04-02 19:05:11 -07:00
um Simplify copy_thread() 2009-04-02 19:04:51 -07:00
x86 x86: UV BAU distribution and payload MMRs 2009-04-16 19:44:16 +02:00
xtensa Simplify copy_thread() 2009-04-02 19:04:51 -07:00
.gitignore
Kconfig dma-debug: add Kconfig entry 2009-03-05 14:36:50 +01:00