- Support for ZynqMP DDR controller support to synopsys_edac along

with a driver cleanup and generalization for the addition of support for
 the new IP. (Manish Narani)
 
 - Removal of the /sys/bus/edac devices hierarchy. This enabled us to get
 rid of the silly memory controllers maximum number notion. (Tony Luck
 and Borislav Petkov)
 
 - skx_edac improvements and fixes. (Qiuxu Zhuo and Tony Luck)
 
 - The usual garden variety of small cleanups and fixes.
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Merge tag 'edac_for_4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

Pull EDAC updates from Borislav Petkov:

 - Support for ZynqMP DDR controller support to synopsys_edac along with
   a driver cleanup and generalization for the addition of support for
   the new IP. (Manish Narani)

 - Removal of the /sys/bus/edac devices hierarchy. This enabled us to
   get rid of the silly memory controllers maximum number notion. (Tony
   Luck and Borislav Petkov)

 - skx_edac improvements and fixes. (Qiuxu Zhuo and Tony Luck)

 - The usual garden variety of small cleanups and fixes.

* tag 'edac_for_4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: (25 commits)
  EDAC, fsl_ddr: Add LS1021A to the list of supported hardware
  EDAC, i5000: Remove set but not used local variables
  MAINTAINERS, EDAC: Drop bouncing email
  EDAC, i82975x: Fix spelling mistake "reserverd" -> "reserved"
  EDAC, fsl: Move error injection under CONFIG_EDAC_DEBUG
  EDAC, skx: Let EDAC core show the decoded result for debugfs
  EDAC, skx: Move debugfs node under EDAC's hierarchy
  EDAC, skx: Prepend hex formatting with '0x'
  EDAC, skx: Fix function calling order in skx_exit()
  EDAC: Drop per-memory controller buses
  EDAC: Don't add devices under /sys/bus/edac
  EDAC: Fix indentation issues in several EDAC drivers
  EDAC, skx: Fix randconfig builds in a better way
  EDAC, i82975x: Remove set but not used variable dtype
  EDAC, qcom_edac: Remove irq_handled local variable
  EDAC, synopsys: Add Error Injection support for ZynqMP DDR controller
  EDAC, synopsys: Add ECC support for ZynqMP DDR controller
  EDAC, synopsys: Add macro defines for ZynqMP DDRC
  dt: bindings: Document ZynqMP DDRC in Synopsys documentation
  EDAC, synopsys: Add error handling for the of_device_get_match_data() result
  ...
This commit is contained in:
Linus Torvalds 2018-12-25 13:28:00 -08:00
commit b271b2127e
17 changed files with 1186 additions and 344 deletions

View File

@ -1,15 +1,32 @@
Binding for Synopsys IntelliDDR Multi Protocol Memory Controller
This controller has an optional ECC support in half-bus width (16-bit)
configuration. The ECC controller corrects one bit error and detects
two bit errors.
The ZynqMP DDR ECC controller has an optional ECC support in 64-bit and 32-bit
bus width configurations.
The Zynq DDR ECC controller has an optional ECC support in half-bus width
(16-bit) configuration.
These both ECC controllers correct single bit ECC errors and detect double bit
ECC errors.
Required properties:
- compatible: Should be 'xlnx,zynq-ddrc-a05'
- reg: Base address and size of the controllers memory area
- compatible: One of:
- 'xlnx,zynq-ddrc-a05' : Zynq DDR ECC controller
- 'xlnx,zynqmp-ddrc-2.40a' : ZynqMP DDR ECC controller
- reg: Should contain DDR controller registers location and length.
Required properties for "xlnx,zynqmp-ddrc-2.40a":
- interrupts: Property with a value describing the interrupt number.
Example:
memory-controller@f8006000 {
compatible = "xlnx,zynq-ddrc-a05";
reg = <0xf8006000 0x1000>;
};
mc: memory-controller@fd070000 {
compatible = "xlnx,zynqmp-ddrc-2.40a";
reg = <0x0 0xfd070000 0x0 0x30000>;
interrupt-parent = <&gic>;
interrupts = <0 112 4>;
};

View File

@ -5445,7 +5445,6 @@ S: Maintained
F: drivers/edac/i82443bxgx_edac.c
EDAC-I82975X
M: Ranganathan Desikan <ravi@jetztechnologies.com>
M: "Arvind R." <arvino55@gmail.com>
L: linux-edac@vger.kernel.org
S: Maintained

View File

@ -231,10 +231,10 @@ config EDAC_SBRIDGE
config EDAC_SKX
tristate "Intel Skylake server Integrated MC"
depends on PCI && X86_64 && X86_MCE_INTEL && PCI_MMCONFIG
depends on PCI && X86_64 && X86_MCE_INTEL && PCI_MMCONFIG && ACPI
depends on ACPI_NFIT || !ACPI_NFIT # if ACPI_NFIT=m, EDAC_SKX can't be y
select DMI
select ACPI_ADXL if ACPI
select ACPI_ADXL
help
Support for error detection and correction the Intel
Skylake server Integrated Memory Controllers. If your
@ -442,7 +442,7 @@ config EDAC_ALTERA_SDMMC
config EDAC_SYNOPSYS
tristate "Synopsys DDR Memory Controller"
depends on ARCH_ZYNQ
depends on ARCH_ZYNQ || ARCH_ZYNQMP
help
Support for error detection and correction on the Synopsys DDR
memory controller.

View File

@ -1446,8 +1446,8 @@ static int __init e752x_init(void)
edac_dbg(3, "\n");
/* Ensure that the OPSTATE is set correctly for POLL or NMI */
opstate_init();
/* Ensure that the OPSTATE is set correctly for POLL or NMI */
opstate_init();
pci_rc = pci_register_driver(&e752x_driver);
return (pci_rc < 0) ? pci_rc : 0;

View File

@ -55,8 +55,6 @@ static LIST_HEAD(mc_devices);
*/
static const char *edac_mc_owner;
static struct bus_type mc_bus[EDAC_MAX_MCS];
int edac_get_report_status(void)
{
return edac_report;
@ -716,11 +714,6 @@ int edac_mc_add_mc_with_groups(struct mem_ctl_info *mci,
int ret = -EINVAL;
edac_dbg(0, "\n");
if (mci->mc_idx >= EDAC_MAX_MCS) {
pr_warn_once("Too many memory controllers: %d\n", mci->mc_idx);
return -ENODEV;
}
#ifdef CONFIG_EDAC_DEBUG
if (edac_debug_level >= 3)
edac_mc_dump_mci(mci);
@ -760,7 +753,7 @@ int edac_mc_add_mc_with_groups(struct mem_ctl_info *mci,
/* set load time so that error rate can be tracked */
mci->start_time = jiffies;
mci->bus = &mc_bus[mci->mc_idx];
mci->bus = edac_get_sysfs_subsys();
if (edac_create_sysfs_mci_device(mci, groups)) {
edac_mc_printk(mci, KERN_WARNING,

View File

@ -405,7 +405,6 @@ static int edac_create_csrow_object(struct mem_ctl_info *mci,
struct csrow_info *csrow, int index)
{
csrow->dev.type = &csrow_attr_type;
csrow->dev.bus = mci->bus;
csrow->dev.groups = csrow_dev_groups;
device_initialize(&csrow->dev);
csrow->dev.parent = &mci->dev;
@ -636,7 +635,6 @@ static int edac_create_dimm_object(struct mem_ctl_info *mci,
dimm->mci = mci;
dimm->dev.type = &dimm_attr_type;
dimm->dev.bus = mci->bus;
device_initialize(&dimm->dev);
dimm->dev.parent = &mci->dev;
@ -914,33 +912,13 @@ static const struct device_type mci_attr_type = {
int edac_create_sysfs_mci_device(struct mem_ctl_info *mci,
const struct attribute_group **groups)
{
char *name;
int i, err;
/*
* The memory controller needs its own bus, in order to avoid
* namespace conflicts at /sys/bus/edac.
*/
name = kasprintf(GFP_KERNEL, "mc%d", mci->mc_idx);
if (!name)
return -ENOMEM;
mci->bus->name = name;
edac_dbg(0, "creating bus %s\n", mci->bus->name);
err = bus_register(mci->bus);
if (err < 0) {
kfree(name);
return err;
}
/* get the /sys/devices/system/edac subsys reference */
mci->dev.type = &mci_attr_type;
device_initialize(&mci->dev);
mci->dev.parent = mci_pdev;
mci->dev.bus = mci->bus;
mci->dev.groups = groups;
dev_set_name(&mci->dev, "mc%d", mci->mc_idx);
dev_set_drvdata(&mci->dev, mci);
@ -950,7 +928,7 @@ int edac_create_sysfs_mci_device(struct mem_ctl_info *mci,
err = device_add(&mci->dev);
if (err < 0) {
edac_dbg(1, "failure: create device %s\n", dev_name(&mci->dev));
goto fail_unregister_bus;
goto out;
}
/*
@ -998,10 +976,8 @@ int edac_create_sysfs_mci_device(struct mem_ctl_info *mci,
device_unregister(&dimm->dev);
}
device_unregister(&mci->dev);
fail_unregister_bus:
bus_unregister(mci->bus);
kfree(name);
out:
return err;
}
@ -1032,13 +1008,8 @@ void edac_remove_sysfs_mci_device(struct mem_ctl_info *mci)
void edac_unregister_sysfs(struct mem_ctl_info *mci)
{
struct bus_type *bus = mci->bus;
const char *name = mci->bus->name;
edac_dbg(1, "Unregistering device %s\n", dev_name(&mci->dev));
device_unregister(&mci->dev);
bus_unregister(bus);
kfree(name);
}
static void mc_attr_release(struct device *dev)

View File

@ -2,8 +2,8 @@
* Freescale Memory Controller kernel module
*
* Support Power-based SoCs including MPC85xx, MPC86xx, MPC83xx and
* ARM-based Layerscape SoCs including LS2xxx. Originally split
* out from mpc85xx_edac EDAC driver.
* ARM-based Layerscape SoCs including LS2xxx and LS1021A. Originally
* split out from mpc85xx_edac EDAC driver.
*
* Parts Copyrighted (c) 2013 by Freescale Semiconductor, Inc.
*
@ -51,6 +51,7 @@ static inline void ddr_out32(void __iomem *addr, u32 value)
iowrite32be(value, addr);
}
#ifdef CONFIG_EDAC_DEBUG
/************************ MC SYSFS parts ***********************************/
#define to_mci(k) container_of(k, struct mem_ctl_info, dev)
@ -151,11 +152,14 @@ static DEVICE_ATTR(inject_data_lo, S_IRUGO | S_IWUSR,
fsl_mc_inject_data_lo_show, fsl_mc_inject_data_lo_store);
static DEVICE_ATTR(inject_ctrl, S_IRUGO | S_IWUSR,
fsl_mc_inject_ctrl_show, fsl_mc_inject_ctrl_store);
#endif /* CONFIG_EDAC_DEBUG */
static struct attribute *fsl_ddr_dev_attrs[] = {
#ifdef CONFIG_EDAC_DEBUG
&dev_attr_inject_data_hi.attr,
&dev_attr_inject_data_lo.attr,
&dev_attr_inject_ctrl.attr,
#endif
NULL
};

View File

@ -2,8 +2,8 @@
* Freescale Memory Controller kernel module
*
* Support Power-based SoCs including MPC85xx, MPC86xx, MPC83xx and
* ARM-based Layerscape SoCs including LS2xxx. Originally split
* out from mpc85xx_edac EDAC driver.
* ARM-based Layerscape SoCs including LS2xxx and LS1021A. Originally
* split out from mpc85xx_edac EDAC driver.
*
* Author: Dave Jiang <djiang@mvista.com>
*

View File

@ -508,8 +508,8 @@ static int __init i3000_init(void)
edac_dbg(3, "MC:\n");
/* Ensure that the OPSTATE is set correctly for POLL or NMI */
opstate_init();
/* Ensure that the OPSTATE is set correctly for POLL or NMI */
opstate_init();
pci_rc = pci_register_driver(&i3000_driver);
if (pci_rc < 0)

View File

@ -1134,8 +1134,6 @@ static void i5000_get_mc_regs(struct mem_ctl_info *mci)
u32 actual_tolm;
u16 limit;
int slot_row;
int maxch;
int maxdimmperch;
int way0, way1;
pvt = mci->pvt_info;
@ -1145,9 +1143,6 @@ static void i5000_get_mc_regs(struct mem_ctl_info *mci)
pci_read_config_dword(pvt->system_address, AMBASE + sizeof(u32),
&pvt->u.ambase_top);
maxdimmperch = pvt->maxdimmperch;
maxch = pvt->maxch;
edac_dbg(2, "AMBASE= 0x%lx MAXCH= %d MAX-DIMM-Per-CH= %d\n",
(long unsigned int)pvt->ambase, pvt->maxch, pvt->maxdimmperch);
@ -1253,7 +1248,7 @@ static int i5000_init_csrows(struct mem_ctl_info *mci)
{
struct i5000_pvt *pvt;
struct dimm_info *dimm;
int empty, channel_count;
int empty;
int max_csrows;
int mtr;
int csrow_megs;
@ -1261,8 +1256,6 @@ static int i5000_init_csrows(struct mem_ctl_info *mci)
int slot;
pvt = mci->pvt_info;
channel_count = pvt->maxch;
max_csrows = pvt->maxdimmperch * 2;
empty = 1; /* Assume NO memory */
@ -1559,8 +1552,8 @@ static int __init i5000_init(void)
edac_dbg(2, "MC:\n");
/* Ensure that the OPSTATE is set correctly for POLL or NMI */
opstate_init();
/* Ensure that the OPSTATE is set correctly for POLL or NMI */
opstate_init();
pci_rc = pci_register_driver(&i5000_driver);

View File

@ -724,7 +724,7 @@ static ssize_t i7core_inject_type_store(struct device *dev,
const char *data, size_t count)
{
struct mem_ctl_info *mci = to_mci(dev);
struct i7core_pvt *pvt = mci->pvt_info;
struct i7core_pvt *pvt = mci->pvt_info;
unsigned long value;
int rc;

View File

@ -104,7 +104,7 @@ NOTE: Only ONE of the three must be enabled
*
* 31:14 Base Addr of 16K memory-mapped
* configuration space
* 13:1 reserverd
* 13:1 reserved
* 0 mem-mapped config space enable
*/
@ -358,14 +358,6 @@ static int dual_channel_active(void __iomem *mch_window)
return dualch;
}
static enum dev_type i82975x_dram_type(void __iomem *mch_window, int rank)
{
/*
* ECC is possible on i92975x ONLY with DEV_X8
*/
return DEV_X8;
}
static void i82975x_init_csrows(struct mem_ctl_info *mci,
struct pci_dev *pdev, void __iomem *mch_window)
{
@ -375,7 +367,6 @@ static void i82975x_init_csrows(struct mem_ctl_info *mci,
u32 cumul_size, nr_pages;
int index, chan;
struct dimm_info *dimm;
enum dev_type dtype;
last_cumul_size = 0;
@ -413,7 +404,6 @@ static void i82975x_init_csrows(struct mem_ctl_info *mci,
* [0-7] for single-channel; i.e. csrow->nr_channels = 1
* [0-3] for dual-channel; i.e. csrow->nr_channels = 2
*/
dtype = i82975x_dram_type(mch_window, index);
for (chan = 0; chan < csrow->nr_channels; chan++) {
dimm = mci->csrows[index]->channels[chan]->dimm;
@ -423,7 +413,10 @@ static void i82975x_init_csrows(struct mem_ctl_info *mci,
(chan == 0) ? 'A' : 'B',
index);
dimm->grain = 1 << 7; /* 128Byte cache-line resolution */
dimm->dtype = i82975x_dram_type(mch_window, index);
/* ECC is possible on i92975x ONLY with DEV_X8. */
dimm->dtype = DEV_X8;
dimm->mtype = MEM_DDR2; /* I82975x supports only DDR2 */
dimm->edac_mode = EDAC_SECDED; /* only supported */
}
@ -655,8 +648,8 @@ static int __init i82975x_init(void)
edac_dbg(3, "\n");
/* Ensure that the OPSTATE is set correctly for POLL or NMI */
opstate_init();
/* Ensure that the OPSTATE is set correctly for POLL or NMI */
opstate_init();
pci_rc = pci_register_driver(&i82975x_driver);
if (pci_rc < 0)

View File

@ -292,7 +292,6 @@ llcc_ecc_irq_handler(int irq, void *edev_ctl)
struct llcc_drv_data *drv = edac_dev_ctl->pvt_info;
irqreturn_t irq_rc = IRQ_NONE;
u32 drp_error, trp_error, i;
bool irq_handled;
int ret;
/* Iterate over the banks and look for Tag RAM or Data RAM errors */
@ -311,7 +310,7 @@ llcc_ecc_irq_handler(int irq, void *edev_ctl)
ret = dump_syn_reg(edev_ctl, LLCC_DRAM_UE, i);
}
if (!ret)
irq_handled = true;
irq_rc = IRQ_HANDLED;
ret = regmap_read(drv->regmap,
drv->offsets[i] + TRP_INTERRUPT_0_STATUS,
@ -327,12 +326,9 @@ llcc_ecc_irq_handler(int irq, void *edev_ctl)
ret = dump_syn_reg(edev_ctl, LLCC_TRAM_UE, i);
}
if (!ret)
irq_handled = true;
irq_rc = IRQ_HANDLED;
}
if (irq_handled)
irq_rc = IRQ_HANDLED;
return irq_rc;
}

View File

@ -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 @@ static bool skx_sad_decode(struct decoded_addr *res)
}
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 @@ static bool skx_sad_decode(struct decoded_addr *res)
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 @@ static bool skx_tad_decode(struct decoded_addr *res)
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 @@ static bool skx_rir_decode(struct decoded_addr *res)
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);

File diff suppressed because it is too large Load Diff

View File

@ -7,12 +7,7 @@
#ifndef _LINUX_ADXL_H
#define _LINUX_ADXL_H
#ifdef CONFIG_ACPI_ADXL
const char * const *adxl_get_component_names(void);
int adxl_decode(u64 addr, u64 component_values[]);
#else
static inline const char * const *adxl_get_component_names(void) { return NULL; }
static inline int adxl_decode(u64 addr, u64 component_values[]) { return -EOPNOTSUPP; }
#endif
#endif /* _LINUX_ADXL_H */

View File

@ -669,10 +669,4 @@ struct mem_ctl_info {
bool fake_inject_ue;
u16 fake_inject_count;
};
/*
* Maximum number of memory controllers in the coherent fabric.
*/
#define EDAC_MAX_MCS 2 * MAX_NUMNODES
#endif