From 537bddd069c743759addf422d0b8f028ff0f8dbc Mon Sep 17 00:00:00 2001 From: Eric Badger Date: Sun, 10 Oct 2021 10:06:56 -0700 Subject: EDAC/sb_edac: Fix top-of-high-memory value for Broadwell/Haswell The computation of TOHM is off by one bit. This missed bit results in too low a value for TOHM, which can cause errors in regular memory to incorrectly report: EDAC MC0: 1 CE Error at MMIOH area, on addr 0x000000207fffa680 on any memory Fixes: 50d1bb93672f ("sb_edac: add support for Haswell based systems") Cc: stable@vger.kernel.org Reported-by: Meeta Saggi Signed-off-by: Eric Badger Signed-off-by: Tony Luck Link: https://lore.kernel.org/r/20211010170127.848113-1-ebadger@purestorage.com --- drivers/edac/sb_edac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/edac') diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c index 4c626fcd4dcb..1522d4aa2ca6 100644 --- a/drivers/edac/sb_edac.c +++ b/drivers/edac/sb_edac.c @@ -1052,7 +1052,7 @@ static u64 haswell_get_tohm(struct sbridge_pvt *pvt) pci_read_config_dword(pvt->info.pci_vtd, HASWELL_TOHM_1, ®); rc = ((reg << 6) | rc) << 26; - return rc | 0x1ffffff; + return rc | 0x3ffffff; } static u64 knl_get_tolm(struct sbridge_pvt *pvt) -- cgit v1.2.3