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| author | Steffen Persvold <sp@numascale.com> | 2011-12-05 20:07:26 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-12-05 20:17:24 +0400 |
| commit | 44b111b519160e33fdc41eadb39af86a24707edf (patch) | |
| tree | c69d9b0022c410fbdb484c71181498bad9db2581 /arch/x86/Kconfig | |
| parent | 64be4c1c2428e148de6081af235e2418e6a66dda (diff) | |
| download | linux-44b111b519160e33fdc41eadb39af86a24707edf.tar.xz | |
x86: Add NumaChip support
Adds support for Numascale NumaChip large-SMP systems. It is
needed to enable the booting of more than ~168 cores.
v2:
- [Steffen] enumerate only accessible northbridges
- [Daniel] rediffed and validated against 3.1-rc10
v3:
- [Daniel] use x86_init core numbering override
- [Daniel] cleanups as per feedback
v4:
- [Daniel] use updated x86_cpuinit override
v5:
- drop disabling interrupts locally, as ISR write is atomic; drop delay
- added read-mostly annotations where appropriate
- require CONFIG_SMP, so drop conditional path
Workload tested on 96 cores/16 sockets.
Signed-off-by: Steffen Persvold <sp@numascale.com>
Signed-off-by: Daniel J Blueman <daniel@numascale-asia.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Link: http://lkml.kernel.org/r/1323101246-2400-1-git-send-email-daniel@numascale-asia.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index cb9a1044a771..7b9eaa1ae10b 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -343,6 +343,7 @@ config X86_EXTENDED_PLATFORM If you enable this option then you'll be able to select support for the following (non-PC) 64 bit x86 platforms: + Numascale NumaChip ScaleMP vSMP SGI Ultraviolet @@ -351,6 +352,18 @@ config X86_EXTENDED_PLATFORM endif # This is an alphabetically sorted list of 64 bit extended platforms # Please maintain the alphabetic order if and when there are additions +config X86_NUMACHIP + bool "Numascale NumaChip" + depends on X86_64 + depends on X86_EXTENDED_PLATFORM + depends on NUMA + depends on SMP + depends on X86_X2APIC + depends on !EDAC_AMD64 + ---help--- + Adds support for Numascale NumaChip large-SMP systems. Needed to + enable more than ~168 cores. + If you don't have one of these, you should say N here. config X86_VSMP bool "ScaleMP vSMP" |