mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
* [PATCH 0/12]: Sparc64 dynamic per-cpu support.
@ 2009-04-09  5:37 David Miller
  0 siblings, 0 replies; only message in thread
From: David Miller @ 2009-04-09  5:37 UTC (permalink / raw)
  To: tj; +Cc: sparclinux, linux-kernel


This patch set converts sparc64 over to use the dynamic per-cpu stuff.

Most of the work is the boring task of getting rid of the special
"real_setup_per_cpu_areas()" sparc64 uses to setup the per-cpu areas
before bootmem is available.  We needed to do this because we
initialized the cpu possible map at the same time as the stuff stored
in the per-cpu cpu_data array.

So we split those tasks up.  Otherwise we wouldn't be able to convert
to dynamic per-cpu because that stuff requires that bootmem and the
page structs are ready to use.

For now I'm using the draconian unoptimized x86 NUMA remap scheme.  I
really want to do this better because it is insanely suboptimal on
Niagara chips where in some cases 8 cpus share the same physical TLB.

This is against Linus's current tree and it's also in sparc-next-2.6

^ permalink raw reply	[flat|nested] only message in thread

only message in thread, other threads:[~2009-04-09  5:37 UTC | newest]

Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2009-04-09  5:37 [PATCH 0/12]: Sparc64 dynamic per-cpu support David Miller

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox

all inboxes | Powered by JetHome®