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- In Versalnet, handle the reporting of non-standard hw errors whose

Browse Source 
information can come in more than one remote processor message.
 
 - Explicitly reenable ECC checking after a warm reset in Altera OCRAM as those
   registers are reset to default otherwise
 
 - Fix single-bit error injection in Altera EDAC to not inject errors directly
   in ECC RAM and thus lead to false double-bit errors due to same ECC RAM
   being in concurrent use
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Merge tag 'edac_urgent_for_v6.18_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras

Pull EDAC fixes from Borislav Petkov:

 - In Versalnet, handle the reporting of non-standard hw errors whose
   information can come in more than one remote processor message.

 - Explicitly reenable ECC checking after a warm reset in Altera OCRAM
   as those registers are reset to default otherwise

 - Fix single-bit error injection in Altera EDAC to not inject errors
   directly in ECC RAM and thus lead to false double-bit errors due to
   same ECC RAM being in concurrent use

* tag 'edac_urgent_for_v6.18_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  EDAC/altera: Use INTTEST register for Ethernet and USB SBE injection
  EDAC/altera: Handle OCRAM ECC enable after warm reset
  EDAC/versalnet: Handle split messages for non-standard errors
This commit is contained in:
Linus Torvalds 2025-11-16 07:05:24 -08:00
commit 87751e715e
2 changed files with 30 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
drivers/edac/altera_edac.c
View File

@ -1184,10 +1184,22 @@ altr_check_ocram_deps_init(struct altr_edac_device_dev *device)
if (ret)
return ret;
/* Verify OCRAM has been initialized */
/*
* Verify that OCRAM has been initialized.
* During a warm reset, OCRAM contents are retained, but the control
* and status registers are reset to their default values. Therefore,
* ECC must be explicitly re-enabled in the control register.
* Error condition: if INITCOMPLETEA is clear and ECC_EN is already set.
*/
if (!ecc_test_bits(ALTR_A10_ECC_INITCOMPLETEA,
(base + ALTR_A10_ECC_INITSTAT_OFST)))
return -ENODEV;
(base + ALTR_A10_ECC_INITSTAT_OFST))) {
if (!ecc_test_bits(ALTR_A10_ECC_EN,
(base + ALTR_A10_ECC_CTRL_OFST)))
ecc_set_bits(ALTR_A10_ECC_EN,
(base + ALTR_A10_ECC_CTRL_OFST));
else
return -ENODEV;
}
/* Enable IRQ on Single Bit Error */
writel(ALTR_A10_ECC_SERRINTEN, (base + ALTR_A10_ECC_ERRINTENS_OFST));
@ -1357,7 +1369,7 @@ static const struct edac_device_prv_data a10_enetecc_data = {
.ue_set_mask = ALTR_A10_ECC_TDERRA,
.set_err_ofst = ALTR_A10_ECC_INTTEST_OFST,
.ecc_irq_handler = altr_edac_a10_ecc_irq,
.inject_fops = &altr_edac_a10_device_inject2_fops,
.inject_fops = &altr_edac_a10_device_inject_fops,
};
#endif /* CONFIG_EDAC_ALTERA_ETHERNET */
@ -1447,7 +1459,7 @@ static const struct edac_device_prv_data a10_usbecc_data = {
.ue_set_mask = ALTR_A10_ECC_TDERRA,
.set_err_ofst = ALTR_A10_ECC_INTTEST_OFST,
.ecc_irq_handler = altr_edac_a10_ecc_irq,
.inject_fops = &altr_edac_a10_device_inject2_fops,
.inject_fops = &altr_edac_a10_device_inject_fops,
};
#endif /* CONFIG_EDAC_ALTERA_USB */

24
drivers/edac/versalnet_edac.c
View File

@ -605,21 +605,23 @@ static int rpmsg_cb(struct rpmsg_device *rpdev, void *data,
length = result[MSG_ERR_LENGTH];
offset = result[MSG_ERR_OFFSET];
/*
* The data can come in two stretches. Construct the regs from two
* messages. The offset indicates the offset from which the data is to
* be taken.
*/
for (i = 0 ; i < length; i++) {
k = offset + i;
j = ERROR_DATA + i;
mc_priv->regs[k] = result[j];
}
if (result[TOTAL_ERR_LENGTH] > length) {
if (!mc_priv->part_len)
mc_priv->part_len = length;
else
mc_priv->part_len += length;
/*
* The data can come in 2 stretches. Construct the regs from 2
* messages the offset indicates the offset from which the data is to
* be taken
*/
for (i = 0 ; i < length; i++) {
k = offset + i;
j = ERROR_DATA + i;
mc_priv->regs[k] = result[j];
}
if (mc_priv->part_len < result[TOTAL_ERR_LENGTH])
return 0;
mc_priv->part_len = 0;
@ -705,7 +707,7 @@ static int rpmsg_cb(struct rpmsg_device *rpdev, void *data,
/* Convert to bytes */
length = result[TOTAL_ERR_LENGTH] * 4;
log_non_standard_event(sec_type, &amd_versalnet_guid, mc_priv->message,
sec_sev, (void *)&result[ERROR_DATA], length);
sec_sev, (void *)&mc_priv->regs, length);
return 0;
}