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authorBorislav Petkov <borislav.petkov@amd.com>2011-01-13 14:57:34 +0100
committerBorislav Petkov <borislav.petkov@amd.com>2011-03-17 14:46:20 +0100
commite2f79dbdfbf4326fcec50a3c2568476df24b16b6 (patch)
tree296d1ef7795f06d986b7932d52dbe58baff704a8 /drivers/edac
parent95b0ef55cd8a8278b64c7ba98c29cda5f4e4b617 (diff)
downloadop-kernel-dev-e2f79dbdfbf4326fcec50a3c2568476df24b16b6.zip
op-kernel-dev-e2f79dbdfbf4326fcec50a3c2568476df24b16b6.tar.gz
amd64_edac: Correct node interleaving removal
When node interleaving is enabled, a subset of the addr[14:12] bits has to be removed in order to get the normalized DCT address of the DRAM channel. The actual number of bits to remove is determined by F1x[1, 0][7C:40][IntlvEn]. Do this correctly. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Diffstat (limited to 'drivers/edac')
-rw-r--r--drivers/edac/amd64_edac.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 9ea1bb4..f3f4ee9 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -1406,10 +1406,10 @@ static int f10_match_to_this_node(struct amd64_pvt *pvt, int range,
chan_addr = f10_get_norm_dct_addr(pvt, range, sys_addr,
high_range, dct_sel_base);
- /* remove Node ID (in case of node interleaving) */
- tmp = chan_addr & 0xFC0;
-
- chan_addr = ((chan_addr >> hweight8(intlv_en)) & GENMASK(12, 47)) | tmp;
+ /* Remove node interleaving, see F1x120 */
+ if (intlv_en)
+ chan_addr = ((chan_addr >> (12 + hweight8(intlv_en))) << 12) |
+ (chan_addr & 0xfff);
/* remove channel interleave and hash */
if (dct_interleave_enabled(pvt) &&
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