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EDAC/i10nm: Don't fail probing if ADXL is missing

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ADXL is not present in Coreboot- or Slimbootloader-based BIOSes and as
result, the driver fails to probe there.

Since commit 2738c69a88 ("EDAC/i10nm: Add driver decoder for Ice Lake
and Tremont CPUs"), i10nm_edac supports driver decoder. Switch to driver
decoding when ADXL is not present.

Signed-off-by: Vasily Khoruzhick <vasilykh@arista.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Cc: stable@vger.kernel.org # v6.1+
Link: https://patch.msgid.link/20260414181735.87023-1-anarsoul@gmail.com
This commit is contained in:
Vasily Khoruzhick 2026-04-14 11:17:16 -07:00 committed by Tony Luck
parent 5d6919055d
commit e360a6d65b
1 changed files with 11 additions and 3 deletions
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14
drivers/edac/i10nm_base.c
View File

@ -79,6 +79,7 @@ static struct res_config *res_cfg;
static int retry_rd_err_log;
static int decoding_via_mca;
static bool mem_cfg_2lm;
static bool no_adxl;
static struct reg_rrl icx_reg_rrl_ddr = {
.set_num = 2,
@ -1222,8 +1223,14 @@ static int __init i10nm_init(void)
}
rc = skx_adxl_get();
if (rc)
goto fail;
if (rc) {
/* Decoding errors via MCA banks for 2LM isn't supported yet */
if (rc != -ENODEV || mem_cfg_2lm)
goto fail;
i10nm_printk(KERN_INFO, "ADXL not found, falling back to MCA-based decoding.\n");
no_adxl = true;
decoding_via_mca = true;
}
opstate_init();
mce_register_decode_chain(&i10nm_mce_dec);
@ -1257,7 +1264,8 @@ static void __exit i10nm_exit(void)
skx_teardown_debug();
mce_unregister_decode_chain(&i10nm_mce_dec);
skx_adxl_put();
if (!no_adxl)
skx_adxl_put();
skx_remove();
}