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| author | Yazen Ghannam <Yazen.Ghannam@amd.com> | 2016-08-03 10:59:15 -0400 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2016-08-08 05:59:42 +0200 |
| commit | dc0a50a8411e2a3a3ca5a9d97581bbc5420c2687 (patch) | |
| tree | 1dd6a2a5f6964b7e6bace187b48e025a771f8117 /drivers/edac/amd64_edac.c | |
| parent | 7c51d98de6c85b8e4e96058db1c7ac3d6007d204 (diff) | |
| download | blackbird-obmc-linux-dc0a50a8411e2a3a3ca5a9d97581bbc5420c2687.tar.gz blackbird-obmc-linux-dc0a50a8411e2a3a3ca5a9d97581bbc5420c2687.zip | |
EDAC, amd64: Fix channel decode on Fam15hMod60h systems
Fam15hMod60h systems are using the channel decode of Fam15hMod30h which
gives incorrect results. Fam15hMod60h systems should use the generic
channel decode method plus a couple more cases.
Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: Aravind Gopalakrishnan <aravindksg.lkml@gmail.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1470236355-30039-1-git-send-email-Yazen.Ghannam@amd.com
Signed-off-by: Borislav Petkov <bp@suse.de>
Diffstat (limited to 'drivers/edac/amd64_edac.c')
| -rw-r--r-- | drivers/edac/amd64_edac.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c index 8c0ec2128907..da43404dbd0c 100644 --- a/drivers/edac/amd64_edac.c +++ b/drivers/edac/amd64_edac.c @@ -1425,11 +1425,17 @@ static u8 f1x_determine_channel(struct amd64_pvt *pvt, u64 sys_addr, if (intlv_addr & 0x2) { u8 shift = intlv_addr & 0x1 ? 9 : 6; - u32 temp = hweight_long((u32) ((sys_addr >> 16) & 0x1F)) % 2; + u32 temp = hweight_long((u32) ((sys_addr >> 16) & 0x1F)) & 1; return ((sys_addr >> shift) & 1) ^ temp; } + if (intlv_addr & 0x4) { + u8 shift = intlv_addr & 0x1 ? 9 : 8; + + return (sys_addr >> shift) & 1; + } + return (sys_addr >> (12 + hweight8(intlv_en))) & 1; } @@ -1726,8 +1732,11 @@ static int f15_m30h_match_to_this_node(struct amd64_pvt *pvt, unsigned range, if (!(num_dcts_intlv % 2 == 0) || (num_dcts_intlv > 4)) return -EINVAL; - channel = f15_m30h_determine_channel(pvt, sys_addr, intlv_en, - num_dcts_intlv, dct_sel); + if (pvt->model >= 0x60) + channel = f1x_determine_channel(pvt, sys_addr, false, intlv_en); + else + channel = f15_m30h_determine_channel(pvt, sys_addr, intlv_en, + num_dcts_intlv, dct_sel); /* Verify we stay within the MAX number of channels allowed */ if (channel > 3) |
