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authorBorislav Petkov <borislav.petkov@amd.com>2011-01-13 16:01:13 +0100
committerBorislav Petkov <borislav.petkov@amd.com>2011-03-17 14:46:21 +0100
commit5d4b58e84a382309dfa4dbe19220cd1f78ffc71f (patch)
tree8d608bbe95786145a54eb42706c4b0af066a34f7 /drivers/edac
parente2f79dbdfbf4326fcec50a3c2568476df24b16b6 (diff)
downloadblackbird-op-linux-5d4b58e84a382309dfa4dbe19220cd1f78ffc71f.tar.gz
blackbird-op-linux-5d4b58e84a382309dfa4dbe19220cd1f78ffc71f.zip
amd64_edac: Fix channel interleave removal
Remove the channel interleave select bit properly. See F2x110[DctSelIntLvAddr] for details. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Diffstat (limited to 'drivers/edac')
-rw-r--r--drivers/edac/amd64_edac.c26
1 files changed, 17 insertions, 9 deletions
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index f3f4ee909ef5..1cbe9cac6539 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -1373,7 +1373,7 @@ static int f10_match_to_this_node(struct amd64_pvt *pvt, int range,
{
int cs_found = -EINVAL;
u64 chan_addr;
- u32 tmp, dct_sel_base;
+ u32 dct_sel_base;
u8 channel;
bool high_range = false;
@@ -1411,19 +1411,27 @@ static int f10_match_to_this_node(struct amd64_pvt *pvt, int range,
chan_addr = ((chan_addr >> (12 + hweight8(intlv_en))) << 12) |
(chan_addr & 0xfff);
- /* remove channel interleave and hash */
+ /* remove channel interleave */
if (dct_interleave_enabled(pvt) &&
!dct_high_range_enabled(pvt) &&
!dct_ganging_enabled(pvt)) {
- if (dct_sel_interleave_addr(pvt) != 1)
- chan_addr = (chan_addr >> 1) & GENMASK(6, 63);
- else {
- tmp = chan_addr & 0xFC0;
- chan_addr = ((chan_addr & GENMASK(14, 63)) >> 1) | tmp;
- }
+
+ if (dct_sel_interleave_addr(pvt) != 1) {
+ if (dct_sel_interleave_addr(pvt) == 0x3)
+ /* hash 9 */
+ chan_addr = ((chan_addr >> 10) << 9) |
+ (chan_addr & 0x1ff);
+ else
+ /* A[6] or hash 6 */
+ chan_addr = ((chan_addr >> 7) << 6) |
+ (chan_addr & 0x3f);
+ } else
+ /* A[12] */
+ chan_addr = ((chan_addr >> 13) << 12) |
+ (chan_addr & 0xfff);
}
- debugf1(" (ChannelAddrLong=0x%llx)\n", chan_addr);
+ debugf1(" Normalized DCT addr: 0x%llx\n", chan_addr);
cs_found = f10_lookup_addr_in_dct(chan_addr, node_id, channel);
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