diff options
| author | Youquan Song <youquan.song@intel.com> | 2021-08-18 10:57:01 -0700 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2021-08-23 10:35:36 -0700 |
| commit | cf4e6d52f58399c777276172ec250502e19d5e63 (patch) | |
| tree | 4222b4a09b82d5a5338fefa8e688b70e9dbbd54b /drivers/edac/skx_common.c | |
| parent | 2294a7299f5e51667b841f63c6d69474491753fb (diff) | |
EDAC/i10nm: Retrieve and print retry_rd_err_log registers
Retrieve and print retry_rd_err_log registers like the earlier change:
commit e80634a75aba ("EDAC, skx: Retrieve and print retry_rd_err_log registers")
This is a little trickier than on Skylake because of potential
interference with BIOS use of the same registers. The default
behavior is to ignore these registers.
A module parameter retry_rd_err_log(default=0) controls the mode of operation:
- 0=off : Default.
- 1=bios : Linux doesn't reset any control bits, but just reports values.
This is "no harm" mode, but it may miss reporting some data.
- 2=linux: Linux tries to take control and resets mode bits,
clears valid/UC bits after reading. This should be
more reliable (especially if BIOS interference is reduced
by disabling eMCA reporting mode in BIOS setup).
Co-developed-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Signed-off-by: Youquan Song <youquan.song@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/r/20210818175701.1611513-3-tony.luck@intel.com
Diffstat (limited to 'drivers/edac/skx_common.c')
| -rw-r--r-- | drivers/edac/skx_common.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/edac/skx_common.c b/drivers/edac/skx_common.c index f9120e36bf3a..19c17c5198c5 100644 --- a/drivers/edac/skx_common.c +++ b/drivers/edac/skx_common.c @@ -532,6 +532,7 @@ static void skx_mce_output_error(struct mem_ctl_info *mci, bool ripv = GET_BITFIELD(m->mcgstatus, 0, 0); bool overflow = GET_BITFIELD(m->status, 62, 62); bool uncorrected_error = GET_BITFIELD(m->status, 61, 61); + bool scrub_err = false; bool recoverable; int len; u32 core_err_cnt = GET_BITFIELD(m->status, 38, 52); @@ -583,6 +584,7 @@ static void skx_mce_output_error(struct mem_ctl_info *mci, break; case 4: optype = "memory scrubbing error"; + scrub_err = true; break; default: optype = "reserved"; @@ -605,7 +607,7 @@ static void skx_mce_output_error(struct mem_ctl_info *mci, } if (skx_show_retry_rd_err_log) - skx_show_retry_rd_err_log(res, skx_msg + len, MSG_SIZE - len); + skx_show_retry_rd_err_log(res, skx_msg + len, MSG_SIZE - len, scrub_err); edac_dbg(0, "%s\n", skx_msg); |