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path: root/drivers/edac/skx_edac.c
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Diffstat (limited to 'drivers/edac/skx_edac.c')
-rw-r--r--drivers/edac/skx_edac.c151
1 files changed, 76 insertions, 75 deletions
diff --git a/drivers/edac/skx_edac.c b/drivers/edac/skx_edac.c
index a99ea61dad32..93ef161bb5e1 100644
--- a/drivers/edac/skx_edac.c
+++ b/drivers/edac/skx_edac.c
@@ -209,7 +209,7 @@ static int get_all_bus_mappings(void)
d->bus[1] = GET_BITFIELD(reg, 8, 15);
d->bus[2] = GET_BITFIELD(reg, 16, 23);
d->bus[3] = GET_BITFIELD(reg, 24, 31);
- edac_dbg(2, "busses: %x, %x, %x, %x\n",
+ edac_dbg(2, "busses: 0x%x, 0x%x, 0x%x, 0x%x\n",
d->bus[0], d->bus[1], d->bus[2], d->bus[3]);
list_add_tail(&d->list, &skx_edac_list);
skx_num_sockets++;
@@ -245,8 +245,8 @@ static int get_all_munits(const struct munit *m)
/* Be sure that the device is enabled */
if (unlikely(pci_enable_device(pdev) < 0)) {
- skx_printk(KERN_ERR,
- "Couldn't enable %04x:%04x\n", PCI_VENDOR_ID_INTEL, m->did);
+ skx_printk(KERN_ERR, "Couldn't enable device %04x:%04x\n",
+ PCI_VENDOR_ID_INTEL, m->did);
goto fail;
}
@@ -323,7 +323,7 @@ static int get_dimm_attr(u32 reg, int lobit, int hibit, int add, int minval,
u32 val = GET_BITFIELD(reg, lobit, hibit);
if (val < minval || val > maxval) {
- edac_dbg(2, "bad %s = %d (raw=%x)\n", name, val, reg);
+ edac_dbg(2, "bad %s = %d (raw=0x%x)\n", name, val, reg);
return -EINVAL;
}
return val + add;
@@ -368,7 +368,7 @@ static int skx_get_hi_lo(void)
skx_tohm |= (u64)reg << 32;
pci_dev_put(pdev);
- edac_dbg(2, "tolm=%llx tohm=%llx\n", skx_tolm, skx_tohm);
+ edac_dbg(2, "tolm=0x%llx tohm=0x%llx\n", skx_tolm, skx_tohm);
return 0;
}
@@ -389,7 +389,7 @@ static int get_dimm_info(u32 mtr, u32 amap, struct dimm_info *dimm,
size = ((1ull << (rows + cols + ranks)) * banks) >> (20 - 3);
npages = MiB_TO_PAGES(size);
- edac_dbg(0, "mc#%d: channel %d, dimm %d, %lld MiB (%d pages) bank: %d, rank: %d, row: %#x, col: %#x\n",
+ edac_dbg(0, "mc#%d: channel %d, dimm %d, %lld MiB (%d pages) bank: %d, rank: %d, row: 0x%#x, col: 0x%#x\n",
imc->mc, chan, dimmno, size, npages,
banks, 1 << ranks, rows, cols);
@@ -430,18 +430,18 @@ static int get_nvdimm_info(struct dimm_info *dimm, struct skx_imc *imc,
}
if (smbios_handle < 0) {
- skx_printk(KERN_ERR, "Can't find handle for NVDIMM ADR=%x\n", dev_handle);
+ skx_printk(KERN_ERR, "Can't find handle for NVDIMM ADR=0x%x\n", dev_handle);
goto unknown_size;
}
if (flags & ACPI_NFIT_MEM_MAP_FAILED) {
- skx_printk(KERN_ERR, "NVDIMM ADR=%x is not mapped\n", dev_handle);
+ skx_printk(KERN_ERR, "NVDIMM ADR=0x%x is not mapped\n", dev_handle);
goto unknown_size;
}
size = dmi_memdev_size(smbios_handle);
if (size == ~0ull)
- skx_printk(KERN_ERR, "Can't find size for NVDIMM ADR=%x/SMBIOS=%x\n",
+ skx_printk(KERN_ERR, "Can't find size for NVDIMM ADR=0x%x/SMBIOS=0x%x\n",
dev_handle, smbios_handle);
unknown_size:
@@ -616,7 +616,7 @@ static bool skx_sad_decode(struct decoded_addr *res)
/* Simple sanity check for I/O space or out of range */
if (addr >= skx_tohm || (addr >= skx_tolm && addr < BIT_ULL(32))) {
- edac_dbg(0, "Address %llx out of range\n", addr);
+ edac_dbg(0, "Address 0x%llx out of range\n", addr);
return false;
}
@@ -631,7 +631,7 @@ restart:
}
prev_limit = limit + 1;
}
- edac_dbg(0, "No SAD entry for %llx\n", addr);
+ edac_dbg(0, "No SAD entry for 0x%llx\n", addr);
return false;
sad_found:
@@ -709,7 +709,7 @@ sad_found:
res->imc = GET_BITFIELD(d->mcroute, lchan * 3, lchan * 3 + 2);
res->channel = GET_BITFIELD(d->mcroute, lchan * 2 + 18, lchan * 2 + 19);
- edac_dbg(2, "%llx: socket=%d imc=%d channel=%d\n",
+ edac_dbg(2, "0x%llx: socket=%d imc=%d channel=%d\n",
res->addr, res->socket, res->imc, res->channel);
return true;
}
@@ -756,7 +756,7 @@ static bool skx_tad_decode(struct decoded_addr *res)
if (SKX_TAD_BASE(base) <= res->addr && res->addr <= SKX_TAD_LIMIT(wayness))
goto tad_found;
}
- edac_dbg(0, "No TAD entry for %llx\n", res->addr);
+ edac_dbg(0, "No TAD entry for 0x%llx\n", res->addr);
return false;
tad_found:
@@ -784,7 +784,7 @@ tad_found:
res->chan_addr = channel_addr;
- edac_dbg(2, "%llx: chan_addr=%llx sktways=%d chanways=%d\n",
+ edac_dbg(2, "0x%llx: chan_addr=0x%llx sktways=%d chanways=%d\n",
res->addr, res->chan_addr, res->sktways, res->chanways);
return true;
}
@@ -826,7 +826,7 @@ static bool skx_rir_decode(struct decoded_addr *res)
}
prev_limit = limit;
}
- edac_dbg(0, "No RIR entry for %llx\n", res->addr);
+ edac_dbg(0, "No RIR entry for 0x%llx\n", res->addr);
return false;
rir_found:
@@ -845,7 +845,7 @@ rir_found:
res->dimm = chan_rank / 4;
res->rank = chan_rank % 4;
- edac_dbg(2, "%llx: dimm=%d rank=%d chan_rank=%d rank_addr=%llx\n",
+ edac_dbg(2, "0x%llx: dimm=%d rank=%d chan_rank=%d rank_addr=0x%llx\n",
res->addr, res->dimm, res->rank,
res->channel_rank, res->rank_address);
return true;
@@ -908,7 +908,7 @@ static bool skx_mad_decode(struct decoded_addr *r)
}
r->row &= (1u << dimm->rowbits) - 1;
- edac_dbg(2, "%llx: row=%x col=%x bank_addr=%d bank_group=%d\n",
+ edac_dbg(2, "0x%llx: row=0x%x col=0x%x bank_addr=%d bank_group=%d\n",
r->addr, r->row, r->column, r->bank_address,
r->bank_group);
return true;
@@ -921,53 +921,6 @@ static bool skx_decode(struct decoded_addr *res)
skx_rir_decode(res) && skx_mad_decode(res);
}
-#ifdef CONFIG_EDAC_DEBUG
-/*
- * Debug feature. Make /sys/kernel/debug/skx_edac_test/addr.
- * Write an address to this file to exercise the address decode
- * logic in this driver.
- */
-static struct dentry *skx_test;
-static u64 skx_fake_addr;
-
-static int debugfs_u64_set(void *data, u64 val)
-{
- struct decoded_addr res;
-
- res.addr = val;
- skx_decode(&res);
-
- return 0;
-}
-
-DEFINE_SIMPLE_ATTRIBUTE(fops_u64_wo, NULL, debugfs_u64_set, "%llu\n");
-
-static struct dentry *mydebugfs_create(const char *name, umode_t mode,
- struct dentry *parent, u64 *value)
-{
- return debugfs_create_file(name, mode, parent, value, &fops_u64_wo);
-}
-
-static void setup_skx_debug(void)
-{
- skx_test = debugfs_create_dir("skx_edac_test", NULL);
- mydebugfs_create("addr", S_IWUSR, skx_test, &skx_fake_addr);
-}
-
-static void teardown_skx_debug(void)
-{
- debugfs_remove_recursive(skx_test);
-}
-#else
-static void setup_skx_debug(void)
-{
-}
-
-static void teardown_skx_debug(void)
-{
-}
-#endif /*CONFIG_EDAC_DEBUG*/
-
static bool skx_adxl_decode(struct decoded_addr *res)
{
@@ -1069,13 +1022,13 @@ static void skx_mce_output_error(struct mem_ctl_info *mci,
}
}
if (adxl_component_count) {
- snprintf(skx_msg, MSG_SIZE, "%s%s err_code:%04x:%04x %s",
+ snprintf(skx_msg, MSG_SIZE, "%s%s err_code:0x%04x:0x%04x %s",
overflow ? " OVERFLOW" : "",
(uncorrected_error && recoverable) ? " recoverable" : "",
mscod, errcode, adxl_msg);
} else {
snprintf(skx_msg, MSG_SIZE,
- "%s%s err_code:%04x:%04x socket:%d imc:%d rank:%d bg:%d ba:%d row:%x col:%x",
+ "%s%s err_code:0x%04x:0x%04x socket:%d imc:%d rank:%d bg:%d ba:%d row:0x%x col:0x%x",
overflow ? " OVERFLOW" : "",
(uncorrected_error && recoverable) ? " recoverable" : "",
mscod, errcode,
@@ -1151,15 +1104,15 @@ static int skx_mce_check_error(struct notifier_block *nb, unsigned long val,
skx_mc_printk(mci, KERN_DEBUG, "HANDLING MCE MEMORY ERROR\n");
- skx_mc_printk(mci, KERN_DEBUG, "CPU %d: Machine Check %s: %Lx "
+ skx_mc_printk(mci, KERN_DEBUG, "CPU %d: Machine Check %s: 0x%llx "
"Bank %d: %016Lx\n", mce->extcpu, type,
mce->mcgstatus, mce->bank, mce->status);
- skx_mc_printk(mci, KERN_DEBUG, "TSC %llx ", mce->tsc);
- skx_mc_printk(mci, KERN_DEBUG, "ADDR %llx ", mce->addr);
- skx_mc_printk(mci, KERN_DEBUG, "MISC %llx ", mce->misc);
+ skx_mc_printk(mci, KERN_DEBUG, "TSC 0x%llx ", mce->tsc);
+ skx_mc_printk(mci, KERN_DEBUG, "ADDR 0x%llx ", mce->addr);
+ skx_mc_printk(mci, KERN_DEBUG, "MISC 0x%llx ", mce->misc);
- skx_mc_printk(mci, KERN_DEBUG, "PROCESSOR %u:%x TIME %llu SOCKET "
- "%u APIC %x\n", mce->cpuvendor, mce->cpuid,
+ skx_mc_printk(mci, KERN_DEBUG, "PROCESSOR %u:0x%x TIME %llu SOCKET "
+ "%u APIC 0x%x\n", mce->cpuvendor, mce->cpuid,
mce->time, mce->socketid, mce->apicid);
skx_mce_output_error(mci, mce, &res);
@@ -1172,6 +1125,54 @@ static struct notifier_block skx_mce_dec = {
.priority = MCE_PRIO_EDAC,
};
+#ifdef CONFIG_EDAC_DEBUG
+/*
+ * Debug feature.
+ * Exercise the address decode logic by writing an address to
+ * /sys/kernel/debug/edac/skx_test/addr.
+ */
+static struct dentry *skx_test;
+
+static int debugfs_u64_set(void *data, u64 val)
+{
+ struct mce m;
+
+ pr_warn_once("Fake error to 0x%llx injected via debugfs\n", val);
+
+ memset(&m, 0, sizeof(m));
+ /* ADDRV + MemRd + Unknown channel */
+ m.status = MCI_STATUS_ADDRV + 0x90;
+ /* One corrected error */
+ m.status |= BIT_ULL(MCI_STATUS_CEC_SHIFT);
+ m.addr = val;
+ skx_mce_check_error(NULL, 0, &m);
+
+ return 0;
+}
+DEFINE_SIMPLE_ATTRIBUTE(fops_u64_wo, NULL, debugfs_u64_set, "%llu\n");
+
+static void setup_skx_debug(void)
+{
+ skx_test = edac_debugfs_create_dir("skx_test");
+ if (!skx_test)
+ return;
+
+ if (!edac_debugfs_create_file("addr", 0200, skx_test,
+ NULL, &fops_u64_wo)) {
+ debugfs_remove(skx_test);
+ skx_test = NULL;
+ }
+}
+
+static void teardown_skx_debug(void)
+{
+ debugfs_remove_recursive(skx_test);
+}
+#else
+static void setup_skx_debug(void) {}
+static void teardown_skx_debug(void) {}
+#endif /*CONFIG_EDAC_DEBUG*/
+
static void skx_remove(void)
{
int i, j;
@@ -1291,7 +1292,7 @@ static int __init skx_init(void)
if (rc < 0)
goto fail;
if (rc != m->per_socket * skx_num_sockets) {
- edac_dbg(2, "Expected %d, got %d of %x\n",
+ edac_dbg(2, "Expected %d, got %d of 0x%x\n",
m->per_socket * skx_num_sockets, rc, m->did);
rc = -ENODEV;
goto fail;
@@ -1339,11 +1340,11 @@ static void __exit skx_exit(void)
{
edac_dbg(2, "\n");
mce_unregister_decode_chain(&skx_mce_dec);
- skx_remove();
+ teardown_skx_debug();
if (nvdimm_count)
skx_adxl_put();
kfree(skx_msg);
- teardown_skx_debug();
+ skx_remove();
}
module_init(skx_init);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.