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>
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index f3f4ee9..1cbe9ca 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -1373,7 +1373,7 @@
{
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 @@
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);