diff options
author | Youquan Song <youquan.song@intel.com> | 2021-08-18 20:57:01 +0300 |
---|---|---|
committer | Tony Luck <tony.luck@intel.com> | 2021-08-23 20:35:36 +0300 |
commit | cf4e6d52f58399c777276172ec250502e19d5e63 (patch) | |
tree | 4222b4a09b82d5a5338fefa8e688b70e9dbbd54b /drivers/edac/skx_common.h | |
parent | 2294a7299f5e51667b841f63c6d69474491753fb (diff) | |
download | linux-cf4e6d52f58399c777276172ec250502e19d5e63.tar.xz |
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.h')
-rw-r--r-- | drivers/edac/skx_common.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/edac/skx_common.h b/drivers/edac/skx_common.h index 01f67e731766..03ac067a80b9 100644 --- a/drivers/edac/skx_common.h +++ b/drivers/edac/skx_common.h @@ -80,6 +80,8 @@ struct skx_dev { struct skx_channel { struct pci_dev *cdev; struct pci_dev *edev; + u32 retry_rd_err_log_s; + u32 retry_rd_err_log_d; struct skx_dimm { u8 close_pg; u8 bank_xor_enable; @@ -150,12 +152,15 @@ struct res_config { /* SAD device number and function number */ unsigned int sad_all_devfn; int sad_all_offset; + /* Offsets of retry_rd_err_log registers */ + u32 *offsets_scrub; + u32 *offsets_demand; }; typedef int (*get_dimm_config_f)(struct mem_ctl_info *mci, struct res_config *cfg); typedef bool (*skx_decode_f)(struct decoded_addr *res); -typedef void (*skx_show_retry_log_f)(struct decoded_addr *res, char *msg, int len); +typedef void (*skx_show_retry_log_f)(struct decoded_addr *res, char *msg, int len, bool scrub_err); int __init skx_adxl_get(void); void __exit skx_adxl_put(void); |