amd64_edac: Fix DCT base address selector

commit 9975a5f22a4fcc8d08035c65439900a983f891ad upstream.

The correct check is to verify whether in high range we're below 4GB
and not to extract the DctSelBaseAddr again. See "2.8.5 Routing DRAM
Requests" in the F10h BKDG.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Acked-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 01bc8e232456a665675b183946ef0f056cb96548..1c220dc62d89aa840ea4b0c8f09fff68f005886b 100644 (file)
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -1491,7 +1491,7 @@ static inline u64 f10_get_base_addr_offset(u64 sys_addr, int hi_range_sel,
        u64 chan_off;
 
        if (hi_range_sel) {
-               if (!(dct_sel_base_addr & 0xFFFFF800) &&
+               if (!(dct_sel_base_addr & 0xFFFF0000) &&
                   hole_valid && (sys_addr >= 0x100000000ULL))
                        chan_off = hole_off << 16;
                else