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authorTony Luck <tony.luck@intel.com>2016-04-14 10:22:02 -0700
committerIngo Molnar <mingo@kernel.org>2016-04-22 10:10:01 +0200
commitea5dfb5fae81939f777ca569d8cfb599252da2e8 (patch)
treead877f65ffb0a4090d17a78069212c8d75662730 /Documentation
parentff15e95c82768d589957dbb17d7eb7dba7904659 (diff)
x86 EDAC, sb_edac.c: Take account of channel hashing when needed
Haswell and Broadwell can be configured to hash the channel interleave function using bits [27:12] of the physical address. On those processor models we must check to see if hashing is enabled (bit21 of the HASWELL_HASYSDEFEATURE2 register) and act accordingly. Based on a patch by patrickg <patrickg@supermicro.com> Tested-by: Patrick Geary <patrickg@supermicro.com> Signed-off-by: Tony Luck <tony.luck@intel.com> Acked-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Cc: Aristeu Rozanski <arozansk@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-edac@vger.kernel.org Cc: stable@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'Documentation')
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