diff --git a/drivers/edac/i10nm_base.c b/drivers/edac/i10nm_base.c index ac4b3d95531c..d8cd12d906a7 100644 --- a/drivers/edac/i10nm_base.c +++ b/drivers/edac/i10nm_base.c @@ -967,6 +967,15 @@ static bool i10nm_check_ecc(struct skx_imc *imc, int chan) return !!GET_BITFIELD(mcmtr, 2, 2); } +static bool i10nm_channel_disabled(struct skx_imc *imc, int chan) +{ + u32 mcmtr = I10NM_GET_MCMTR(imc, chan); + + edac_dbg(1, "mc%d ch%d mcmtr reg %x\n", imc->mc, chan, mcmtr); + + return (mcmtr == ~0 || GET_BITFIELD(mcmtr, 18, 18)); +} + static int i10nm_get_dimm_config(struct mem_ctl_info *mci, struct res_config *cfg) { @@ -980,6 +989,11 @@ static int i10nm_get_dimm_config(struct mem_ctl_info *mci, if (!imc->mbase) continue; + if (i10nm_channel_disabled(imc, i)) { + edac_dbg(1, "mc%d ch%d is disabled.\n", imc->mc, i); + continue; + } + ndimms = 0; if (res_cfg->type != GNR)