linux_dsm_epyc7002/arch
Cliff Wickman cfa60917f0 x86, UV, BAU: Extend for more than 16 cpus per socket
Fix a hard-coded limit of a maximum of 16 cpu's per socket.

The UV Broadcast Assist Unit code initializes by scanning the
cpu topology of the system and assigning a master cpu for each
socket and UV hub. That scan had an assumption of a limit of 16
cpus per socket. With Westmere we are going over that limit.
The UV hub hardware will allow up to 32.

If the scan finds the system has gone over that limit it returns
an error and we print a warning and fall back to doing TLB
shootdowns without the BAU.

Signed-off-by: Cliff Wickman <cpw@sgi.com>
Cc: <stable@kernel.org> # .37.x
LKML-Reference: <E1PZol7-0000mM-77@eag09.americas.sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-01-03 20:35:03 +01:00
..
alpha
arm Merge branch 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 2010-12-20 09:59:08 -08:00
avr32
blackfin
cris
frv
h8300
ia64
m32r
m68k
m68knommu
microblaze
mips MIPS: Fix build errors in sc-mips.c 2010-12-17 19:44:35 +00:00
mn10300 clarify a usage constraint for cnt32_to_63() 2010-12-20 09:07:35 -08:00
parisc
powerpc
s390
score
sh
sparc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6 2010-12-14 17:34:00 -08:00
tile arch/tile: handle rt_sigreturn() more cleanly 2010-12-17 16:59:29 -05:00
um
x86 x86, UV, BAU: Extend for more than 16 cpus per socket 2011-01-03 20:35:03 +01:00
xtensa
.gitignore
Kconfig