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| author |   Luck, Tony <tony.luck@intel.com> | 2016-03-09 16:40:48 -0800 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2016-03-10 18:31:55 +0100 |
| commit | eb1af3b71f9d83e45f2fd2fd649356e98e1c582c (patch) | |
| tree | 8ec477e17a6ca49a91aa1a9379a255ed0e6c0c9b /scripts | |
| parent | x86/mm, x86/mce: Add memcpy_mcsafe() (diff) | |
| download | linux-dev-eb1af3b71f9d83e45f2fd2fd649356e98e1c582c.tar.xz linux-dev-eb1af3b71f9d83e45f2fd2fd649356e98e1c582c.zip | |
EDAC/sb_edac: Fix computation of channel address
Large memory Haswell-EX systems with multiple DIMMs per channel were
sometimes reporting the wrong DIMM.
Found three problems:
1) Debug printouts for socket and channel interleave were not interpreting
the register fields correctly. The socket interleave field is a 2^X
value (0=1, 1=2, 2=4, 3=8). The channel interleave is X+1 (0=1, 1=2,
2=3. 3=4).
2) Actual use of the socket interleave value didn't interpret as 2^X
3) Conversion of address to channel address was complicated, and wrong.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Acked-by: Aristeu Rozanski <arozansk@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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 'scripts')
0 files changed, 0 insertions, 0 deletions