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Merge tag 'libnvdimm-for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

瀏覽代碼 
Pull libnvdimm updates from Dan Williams:

 - Improve the efficiency and performance of reading nvdimm-namespace
   labels. Reduce the amount of label data read at driver load time by a
   few orders of magnitude. Reduce heavyweight call-outs to
   platform-firmware routines.

 - Handle media errors located in the 'struct page' array stored on a
   persistent memory namespace. Let the kernel clear these errors rather
   than an awkward userspace workaround.

 - Fix Address Range Scrub (ARS) completion tracking. Correct occasions
   where the kernel indicates completion of ARS before submission.

 - Fix asynchronous device registration reference counting.

 - Add support for reporting an nvdimm dirty-shutdown-count via sysfs.

 - Fix various small libnvdimm core and uapi issues.

* tag 'libnvdimm-for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (21 commits)
  acpi, nfit: Further restrict userspace ARS start requests
  acpi, nfit: Fix Address Range Scrub completion tracking
  UAPI: ndctl: Remove use of PAGE_SIZE
  UAPI: ndctl: Fix g++-unsupported initialisation in headers
  tools/testing/nvdimm: Populate dirty shutdown data
  acpi, nfit: Collect shutdown status
  acpi, nfit: Introduce nfit_mem flags
  libnvdimm, label: Fix sparse warning
  nvdimm: Use namespace index data to reduce number of label reads needed
  nvdimm: Split label init out from the logic for getting config data
  nvdimm: Remove empty if statement
  nvdimm: Clarify comment in sizeof_namespace_index
  nvdimm: Sanity check labeloff
  libnvdimm, dimm: Maximize label transfer size
  libnvdimm, pmem: Fix badblocks population for 'raw' namespaces
  libnvdimm, namespace: Drop the repeat assignment for variable dev->parent
  libnvdimm, region: Fail badblocks listing for inactive regions
  libnvdimm, pfn: during init, clear errors in the metadata area
  libnvdimm: Set device node in nd_device_register
  libnvdimm: Hold reference on parent while scheduling async init
  ...
此提交包含在：
Linus Torvalds
2018-10-25 06:31:56 -07:00
父節點 df132e4062 594861215c
當前提交 6078e07dcf
共有 20 個檔案被更改，包括 563 行新增 和 216 行删除
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295
drivers/acpi/nfit/core.c
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@@ -25,6 +25,7 @@
#include <asm/cacheflush.h>
#include <acpi/nfit.h>
#include "nfit.h"
#include "intel.h"
/*
* For readq() and writeq() on 32-bit builds, the hi-lo, lo-hi order is
@@ -191,18 +192,20 @@ static int xlat_nvdimm_status(struct nvdimm *nvdimm, void *buf, unsigned int cmd
* In the _LSI, _LSR, _LSW case the locked status is
* communicated via the read/write commands
*/
if (nfit_mem->has_lsr)
if (test_bit(NFIT_MEM_LSR, &nfit_mem->flags))
break;
if (status >> 16 & ND_CONFIG_LOCKED)
return -EACCES;
break;
case ND_CMD_GET_CONFIG_DATA:
if (nfit_mem->has_lsr && status == ACPI_LABELS_LOCKED)
if (test_bit(NFIT_MEM_LSR, &nfit_mem->flags)
&& status == ACPI_LABELS_LOCKED)
return -EACCES;
break;
case ND_CMD_SET_CONFIG_DATA:
if (nfit_mem->has_lsw && status == ACPI_LABELS_LOCKED)
if (test_bit(NFIT_MEM_LSW, &nfit_mem->flags)
&& status == ACPI_LABELS_LOCKED)
return -EACCES;
break;
default:
@@ -480,14 +483,16 @@ int acpi_nfit_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm,
min_t(u32, 256, in_buf.buffer.length), true);
/* call the BIOS, prefer the named methods over _DSM if available */
if (nvdimm && cmd == ND_CMD_GET_CONFIG_SIZE && nfit_mem->has_lsr)
if (nvdimm && cmd == ND_CMD_GET_CONFIG_SIZE
&& test_bit(NFIT_MEM_LSR, &nfit_mem->flags))
out_obj = acpi_label_info(handle);
else if (nvdimm && cmd == ND_CMD_GET_CONFIG_DATA && nfit_mem->has_lsr) {
else if (nvdimm && cmd == ND_CMD_GET_CONFIG_DATA
&& test_bit(NFIT_MEM_LSR, &nfit_mem->flags)) {
struct nd_cmd_get_config_data_hdr *p = buf;
out_obj = acpi_label_read(handle, p->in_offset, p->in_length);
} else if (nvdimm && cmd == ND_CMD_SET_CONFIG_DATA
&& nfit_mem->has_lsw) {
&& test_bit(NFIT_MEM_LSW, &nfit_mem->flags)) {
struct nd_cmd_set_config_hdr *p = buf;
out_obj = acpi_label_write(handle, p->in_offset, p->in_length,
@@ -1547,7 +1552,12 @@ static DEVICE_ATTR_RO(dsm_mask);
static ssize_t flags_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
u16 flags = to_nfit_memdev(dev)->flags;
struct nvdimm *nvdimm = to_nvdimm(dev);
struct nfit_mem *nfit_mem = nvdimm_provider_data(nvdimm);
u16 flags = __to_nfit_memdev(nfit_mem)->flags;
if (test_bit(NFIT_MEM_DIRTY, &nfit_mem->flags))
flags |= ACPI_NFIT_MEM_FLUSH_FAILED;
return sprintf(buf, "%s%s%s%s%s%s%s\n",
flags & ACPI_NFIT_MEM_SAVE_FAILED ? "save_fail " : "",
@@ -1578,6 +1588,16 @@ static ssize_t id_show(struct device *dev,
}
static DEVICE_ATTR_RO(id);
static ssize_t dirty_shutdown_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct nvdimm *nvdimm = to_nvdimm(dev);
struct nfit_mem *nfit_mem = nvdimm_provider_data(nvdimm);
return sprintf(buf, "%d\n", nfit_mem->dirty_shutdown);
}
static DEVICE_ATTR_RO(dirty_shutdown);
static struct attribute *acpi_nfit_dimm_attributes[] = {
&dev_attr_handle.attr,
&dev_attr_phys_id.attr,
@@ -1595,6 +1615,7 @@ static struct attribute *acpi_nfit_dimm_attributes[] = {
&dev_attr_id.attr,
&dev_attr_family.attr,
&dev_attr_dsm_mask.attr,
&dev_attr_dirty_shutdown.attr,
NULL,
};
@@ -1603,6 +1624,7 @@ static umode_t acpi_nfit_dimm_attr_visible(struct kobject *kobj,
{
struct device *dev = container_of(kobj, struct device, kobj);
struct nvdimm *nvdimm = to_nvdimm(dev);
struct nfit_mem *nfit_mem = nvdimm_provider_data(nvdimm);
if (!to_nfit_dcr(dev)) {
/* Without a dcr only the memdev attributes can be surfaced */
@@ -1616,6 +1638,11 @@ static umode_t acpi_nfit_dimm_attr_visible(struct kobject *kobj,
if (a == &dev_attr_format1.attr && num_nvdimm_formats(nvdimm) <= 1)
return 0;
if (!test_bit(NFIT_MEM_DIRTY_COUNT, &nfit_mem->flags)
&& a == &dev_attr_dirty_shutdown.attr)
return 0;
return a->mode;
}
@@ -1694,6 +1721,56 @@ static bool acpi_nvdimm_has_method(struct acpi_device *adev, char *method)
return false;
}
__weak void nfit_intel_shutdown_status(struct nfit_mem *nfit_mem)
{
struct nd_intel_smart smart = { 0 };
union acpi_object in_buf = {
.type = ACPI_TYPE_BUFFER,
.buffer.pointer = (char *) &smart,
.buffer.length = sizeof(smart),
};
union acpi_object in_obj = {
.type = ACPI_TYPE_PACKAGE,
.package.count = 1,
.package.elements = &in_buf,
};
const u8 func = ND_INTEL_SMART;
const guid_t *guid = to_nfit_uuid(nfit_mem->family);
u8 revid = nfit_dsm_revid(nfit_mem->family, func);
struct acpi_device *adev = nfit_mem->adev;
acpi_handle handle = adev->handle;
union acpi_object *out_obj;
if ((nfit_mem->dsm_mask & (1 << func)) == 0)
return;
out_obj = acpi_evaluate_dsm(handle, guid, revid, func, &in_obj);
if (!out_obj)
return;
if (smart.flags & ND_INTEL_SMART_SHUTDOWN_VALID) {
if (smart.shutdown_state)
set_bit(NFIT_MEM_DIRTY, &nfit_mem->flags);
}
if (smart.flags & ND_INTEL_SMART_SHUTDOWN_COUNT_VALID) {
set_bit(NFIT_MEM_DIRTY_COUNT, &nfit_mem->flags);
nfit_mem->dirty_shutdown = smart.shutdown_count;
}
ACPI_FREE(out_obj);
}
static void populate_shutdown_status(struct nfit_mem *nfit_mem)
{
/*
* For DIMMs that provide a dynamic facility to retrieve a
* dirty-shutdown status and/or a dirty-shutdown count, cache
* these values in nfit_mem.
*/
if (nfit_mem->family == NVDIMM_FAMILY_INTEL)
nfit_intel_shutdown_status(nfit_mem);
}
static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc,
struct nfit_mem *nfit_mem, u32 device_handle)
{
@@ -1708,8 +1785,11 @@ static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc,
nfit_mem->dsm_mask = acpi_desc->dimm_cmd_force_en;
nfit_mem->family = NVDIMM_FAMILY_INTEL;
adev = to_acpi_dev(acpi_desc);
if (!adev)
if (!adev) {
/* unit test case */
populate_shutdown_status(nfit_mem);
return 0;
}
adev_dimm = acpi_find_child_device(adev, device_handle, false);
nfit_mem->adev = adev_dimm;
@@ -1784,14 +1864,17 @@ static int acpi_nfit_add_dimm(struct acpi_nfit_desc *acpi_desc,
if (acpi_nvdimm_has_method(adev_dimm, "_LSI")
&& acpi_nvdimm_has_method(adev_dimm, "_LSR")) {
dev_dbg(dev, "%s: has _LSR\n", dev_name(&adev_dimm->dev));
nfit_mem->has_lsr = true;
set_bit(NFIT_MEM_LSR, &nfit_mem->flags);
}
if (nfit_mem->has_lsr && acpi_nvdimm_has_method(adev_dimm, "_LSW")) {
if (test_bit(NFIT_MEM_LSR, &nfit_mem->flags)
&& acpi_nvdimm_has_method(adev_dimm, "_LSW")) {
dev_dbg(dev, "%s: has _LSW\n", dev_name(&adev_dimm->dev));
nfit_mem->has_lsw = true;
set_bit(NFIT_MEM_LSW, &nfit_mem->flags);
}
populate_shutdown_status(nfit_mem);
return 0;
}
@@ -1878,11 +1961,11 @@ static int acpi_nfit_register_dimms(struct acpi_nfit_desc *acpi_desc)
cmd_mask |= nfit_mem->dsm_mask & NVDIMM_STANDARD_CMDMASK;
}
if (nfit_mem->has_lsr) {
if (test_bit(NFIT_MEM_LSR, &nfit_mem->flags)) {
set_bit(ND_CMD_GET_CONFIG_SIZE, &cmd_mask);
set_bit(ND_CMD_GET_CONFIG_DATA, &cmd_mask);
}
if (nfit_mem->has_lsw)
if (test_bit(NFIT_MEM_LSW, &nfit_mem->flags))
set_bit(ND_CMD_SET_CONFIG_DATA, &cmd_mask);
flush = nfit_mem->nfit_flush ? nfit_mem->nfit_flush->flush
@@ -2466,7 +2549,8 @@ static int ars_get_cap(struct acpi_nfit_desc *acpi_desc,
return cmd_rc;
}
static int ars_start(struct acpi_nfit_desc *acpi_desc, struct nfit_spa *nfit_spa)
static int ars_start(struct acpi_nfit_desc *acpi_desc,
struct nfit_spa *nfit_spa, enum nfit_ars_state req_type)
{
int rc;
int cmd_rc;
@@ -2477,7 +2561,7 @@ static int ars_start(struct acpi_nfit_desc *acpi_desc, struct nfit_spa *nfit_spa
memset(&ars_start, 0, sizeof(ars_start));
ars_start.address = spa->address;
ars_start.length = spa->length;
if (test_bit(ARS_SHORT, &nfit_spa->ars_state))
if (req_type == ARS_REQ_SHORT)
ars_start.flags = ND_ARS_RETURN_PREV_DATA;
if (nfit_spa_type(spa) == NFIT_SPA_PM)
ars_start.type = ND_ARS_PERSISTENT;
@@ -2534,6 +2618,15 @@ static void ars_complete(struct acpi_nfit_desc *acpi_desc,
struct nd_region *nd_region = nfit_spa->nd_region;
struct device *dev;
lockdep_assert_held(&acpi_desc->init_mutex);
/*
* Only advance the ARS state for ARS runs initiated by the
* kernel, ignore ARS results from BIOS initiated runs for scrub
* completion tracking.
*/
if (acpi_desc->scrub_spa != nfit_spa)
return;
if ((ars_status->address >= spa->address && ars_status->address
< spa->address + spa->length)
|| (ars_status->address < spa->address)) {
@@ -2553,28 +2646,13 @@ static void ars_complete(struct acpi_nfit_desc *acpi_desc,
} else
return;
if (test_bit(ARS_DONE, &nfit_spa->ars_state))
return;
if (!test_and_clear_bit(ARS_REQ, &nfit_spa->ars_state))
return;
acpi_desc->scrub_spa = NULL;
if (nd_region) {
dev = nd_region_dev(nd_region);
nvdimm_region_notify(nd_region, NVDIMM_REVALIDATE_POISON);
} else
dev = acpi_desc->dev;
dev_dbg(dev, "ARS: range %d %s complete\n", spa->range_index,
test_bit(ARS_SHORT, &nfit_spa->ars_state)
? "short" : "long");
clear_bit(ARS_SHORT, &nfit_spa->ars_state);
if (test_and_clear_bit(ARS_REQ_REDO, &nfit_spa->ars_state)) {
set_bit(ARS_SHORT, &nfit_spa->ars_state);
set_bit(ARS_REQ, &nfit_spa->ars_state);
dev_dbg(dev, "ARS: processing scrub request received while in progress\n");
} else
set_bit(ARS_DONE, &nfit_spa->ars_state);
dev_dbg(dev, "ARS: range %d complete\n", spa->range_index);
}
static int ars_status_process_records(struct acpi_nfit_desc *acpi_desc)
@@ -2855,46 +2933,55 @@ static int acpi_nfit_query_poison(struct acpi_nfit_desc *acpi_desc)
return 0;
}
static int ars_register(struct acpi_nfit_desc *acpi_desc, struct nfit_spa *nfit_spa,
int *query_rc)
static int ars_register(struct acpi_nfit_desc *acpi_desc,
struct nfit_spa *nfit_spa)
{
int rc = *query_rc;
int rc;
if (no_init_ars)
if (no_init_ars || test_bit(ARS_FAILED, &nfit_spa->ars_state))
return acpi_nfit_register_region(acpi_desc, nfit_spa);
set_bit(ARS_REQ, &nfit_spa->ars_state);
set_bit(ARS_SHORT, &nfit_spa->ars_state);
set_bit(ARS_REQ_SHORT, &nfit_spa->ars_state);
set_bit(ARS_REQ_LONG, &nfit_spa->ars_state);
switch (rc) {
switch (acpi_nfit_query_poison(acpi_desc)) {
case 0:
case -EAGAIN:
rc = ars_start(acpi_desc, nfit_spa);
if (rc == -EBUSY) {
*query_rc = rc;
rc = ars_start(acpi_desc, nfit_spa, ARS_REQ_SHORT);
/* shouldn't happen, try again later */
if (rc == -EBUSY)
break;
} else if (rc == 0) {
rc = acpi_nfit_query_poison(acpi_desc);
} else {
if (rc) {
set_bit(ARS_FAILED, &nfit_spa->ars_state);
break;
}
if (rc == -EAGAIN)
clear_bit(ARS_SHORT, &nfit_spa->ars_state);
else if (rc == 0)
ars_complete(acpi_desc, nfit_spa);
clear_bit(ARS_REQ_SHORT, &nfit_spa->ars_state);
rc = acpi_nfit_query_poison(acpi_desc);
if (rc)
break;
acpi_desc->scrub_spa = nfit_spa;
ars_complete(acpi_desc, nfit_spa);
/*
* If ars_complete() says we didn't complete the
* short scrub, we'll try again with a long
* request.
*/
acpi_desc->scrub_spa = NULL;
break;
case -EBUSY:
case -ENOMEM:
case -ENOSPC:
/*
* BIOS was using ARS, wait for it to complete (or
* resources to become available) and then perform our
* own scrubs.
*/
break;
default:
set_bit(ARS_FAILED, &nfit_spa->ars_state);
break;
}
if (test_and_clear_bit(ARS_DONE, &nfit_spa->ars_state))
set_bit(ARS_REQ, &nfit_spa->ars_state);
return acpi_nfit_register_region(acpi_desc, nfit_spa);
}
@@ -2916,6 +3003,8 @@ static unsigned int __acpi_nfit_scrub(struct acpi_nfit_desc *acpi_desc,
struct device *dev = acpi_desc->dev;
struct nfit_spa *nfit_spa;
lockdep_assert_held(&acpi_desc->init_mutex);
if (acpi_desc->cancel)
return 0;
@@ -2939,21 +3028,49 @@ static unsigned int __acpi_nfit_scrub(struct acpi_nfit_desc *acpi_desc,
ars_complete_all(acpi_desc);
list_for_each_entry(nfit_spa, &acpi_desc->spas, list) {
enum nfit_ars_state req_type;
int rc;
if (test_bit(ARS_FAILED, &nfit_spa->ars_state))
continue;
if (test_bit(ARS_REQ, &nfit_spa->ars_state)) {
int rc = ars_start(acpi_desc, nfit_spa);
clear_bit(ARS_DONE, &nfit_spa->ars_state);
dev = nd_region_dev(nfit_spa->nd_region);
dev_dbg(dev, "ARS: range %d ARS start (%d)\n",
nfit_spa->spa->range_index, rc);
if (rc == 0 || rc == -EBUSY)
return 1;
dev_err(dev, "ARS: range %d ARS failed (%d)\n",
nfit_spa->spa->range_index, rc);
set_bit(ARS_FAILED, &nfit_spa->ars_state);
/* prefer short ARS requests first */
if (test_bit(ARS_REQ_SHORT, &nfit_spa->ars_state))
req_type = ARS_REQ_SHORT;
else if (test_bit(ARS_REQ_LONG, &nfit_spa->ars_state))
req_type = ARS_REQ_LONG;
else
continue;
rc = ars_start(acpi_desc, nfit_spa, req_type);
dev = nd_region_dev(nfit_spa->nd_region);
dev_dbg(dev, "ARS: range %d ARS start %s (%d)\n",
nfit_spa->spa->range_index,
req_type == ARS_REQ_SHORT ? "short" : "long",
rc);
/*
* Hmm, we raced someone else starting ARS? Try again in
* a bit.
*/
if (rc == -EBUSY)
return 1;
if (rc == 0) {
dev_WARN_ONCE(dev, acpi_desc->scrub_spa,
"scrub start while range %d active\n",
acpi_desc->scrub_spa->spa->range_index);
clear_bit(req_type, &nfit_spa->ars_state);
acpi_desc->scrub_spa = nfit_spa;
/*
* Consider this spa last for future scrub
* requests
*/
list_move_tail(&nfit_spa->list, &acpi_desc->spas);
return 1;
}
dev_err(dev, "ARS: range %d ARS failed (%d)\n",
nfit_spa->spa->range_index, rc);
set_bit(ARS_FAILED, &nfit_spa->ars_state);
}
return 0;
}
@@ -3009,6 +3126,7 @@ static void acpi_nfit_init_ars(struct acpi_nfit_desc *acpi_desc,
struct nd_cmd_ars_cap ars_cap;
int rc;
set_bit(ARS_FAILED, &nfit_spa->ars_state);
memset(&ars_cap, 0, sizeof(ars_cap));
rc = ars_get_cap(acpi_desc, &ars_cap, nfit_spa);
if (rc < 0)
@@ -3025,16 +3143,14 @@ static void acpi_nfit_init_ars(struct acpi_nfit_desc *acpi_desc,
nfit_spa->clear_err_unit = ars_cap.clear_err_unit;
acpi_desc->max_ars = max(nfit_spa->max_ars, acpi_desc->max_ars);
clear_bit(ARS_FAILED, &nfit_spa->ars_state);
set_bit(ARS_REQ, &nfit_spa->ars_state);
}
static int acpi_nfit_register_regions(struct acpi_nfit_desc *acpi_desc)
{
struct nfit_spa *nfit_spa;
int rc, query_rc;
int rc;
list_for_each_entry(nfit_spa, &acpi_desc->spas, list) {
set_bit(ARS_FAILED, &nfit_spa->ars_state);
switch (nfit_spa_type(nfit_spa->spa)) {
case NFIT_SPA_VOLATILE:
case NFIT_SPA_PM:
@@ -3043,20 +3159,12 @@ static int acpi_nfit_register_regions(struct acpi_nfit_desc *acpi_desc)
}
}
/*
* Reap any results that might be pending before starting new
* short requests.
*/
query_rc = acpi_nfit_query_poison(acpi_desc);
if (query_rc == 0)
ars_complete_all(acpi_desc);
list_for_each_entry(nfit_spa, &acpi_desc->spas, list)
switch (nfit_spa_type(nfit_spa->spa)) {
case NFIT_SPA_VOLATILE:
case NFIT_SPA_PM:
/* register regions and kick off initial ARS run */
rc = ars_register(acpi_desc, nfit_spa, &query_rc);
rc = ars_register(acpi_desc, nfit_spa);
if (rc)
return rc;
break;
@@ -3233,6 +3341,8 @@ static int acpi_nfit_clear_to_send(struct nvdimm_bus_descriptor *nd_desc,
struct nvdimm *nvdimm, unsigned int cmd)
{
struct acpi_nfit_desc *acpi_desc = to_acpi_nfit_desc(nd_desc);
struct nfit_spa *nfit_spa;
int rc = 0;
if (nvdimm)
return 0;
@@ -3242,16 +3352,24 @@ static int acpi_nfit_clear_to_send(struct nvdimm_bus_descriptor *nd_desc,
/*
* The kernel and userspace may race to initiate a scrub, but
* the scrub thread is prepared to lose that initial race. It
* just needs guarantees that any ars it initiates are not
* interrupted by any intervening start reqeusts from userspace.
* just needs guarantees that any ARS it initiates are not
* interrupted by any intervening start requests from userspace.
*/
if (work_busy(&acpi_desc->dwork.work))
return -EBUSY;
mutex_lock(&acpi_desc->init_mutex);
list_for_each_entry(nfit_spa, &acpi_desc->spas, list)
if (acpi_desc->scrub_spa
|| test_bit(ARS_REQ_SHORT, &nfit_spa->ars_state)
|| test_bit(ARS_REQ_LONG, &nfit_spa->ars_state)) {
rc = -EBUSY;
break;
}
mutex_unlock(&acpi_desc->init_mutex);
return 0;
return rc;
}
int acpi_nfit_ars_rescan(struct acpi_nfit_desc *acpi_desc, unsigned long flags)
int acpi_nfit_ars_rescan(struct acpi_nfit_desc *acpi_desc,
enum nfit_ars_state req_type)
{
struct device *dev = acpi_desc->dev;
int scheduled = 0, busy = 0;
@@ -3271,14 +3389,10 @@ int acpi_nfit_ars_rescan(struct acpi_nfit_desc *acpi_desc, unsigned long flags)
if (test_bit(ARS_FAILED, &nfit_spa->ars_state))
continue;
if (test_and_set_bit(ARS_REQ, &nfit_spa->ars_state)) {
if (test_and_set_bit(req_type, &nfit_spa->ars_state))
busy++;
set_bit(ARS_REQ_REDO, &nfit_spa->ars_state);
} else {
if (test_bit(ARS_SHORT, &flags))
set_bit(ARS_SHORT, &nfit_spa->ars_state);
else
scheduled++;
}
}
if (scheduled) {
sched_ars(acpi_desc);
@@ -3464,10 +3578,11 @@ static void acpi_nfit_update_notify(struct device *dev, acpi_handle handle)
static void acpi_nfit_uc_error_notify(struct device *dev, acpi_handle handle)
{
struct acpi_nfit_desc *acpi_desc = dev_get_drvdata(dev);
unsigned long flags = (acpi_desc->scrub_mode == HW_ERROR_SCRUB_ON) ?
0 : 1 << ARS_SHORT;
acpi_nfit_ars_rescan(acpi_desc, flags);
if (acpi_desc->scrub_mode == HW_ERROR_SCRUB_ON)
acpi_nfit_ars_rescan(acpi_desc, ARS_REQ_LONG);
else
acpi_nfit_ars_rescan(acpi_desc, ARS_REQ_SHORT);
}
void __acpi_nfit_notify(struct device *dev, acpi_handle handle, u32 event)

38
drivers/acpi/nfit/intel.h 一般檔案
查看文件

@@ -0,0 +1,38 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright(c) 2018 Intel Corporation. All rights reserved.
* Intel specific definitions for NVDIMM Firmware Interface Table - NFIT
*/
#ifndef _NFIT_INTEL_H_
#define _NFIT_INTEL_H_
#define ND_INTEL_SMART 1
#define ND_INTEL_SMART_SHUTDOWN_COUNT_VALID (1 << 5)
#define ND_INTEL_SMART_SHUTDOWN_VALID (1 << 10)
struct nd_intel_smart {
u32 status;
union {
struct {
u32 flags;
u8 reserved0[4];
u8 health;
u8 spares;
u8 life_used;
u8 alarm_flags;
u16 media_temperature;
u16 ctrl_temperature;
u32 shutdown_count;
u8 ait_status;
u16 pmic_temperature;
u8 reserved1[8];
u8 shutdown_state;
u32 vendor_size;
u8 vendor_data[92];
} __packed;
u8 data[128];
};
} __packed;
#endif

21
drivers/acpi/nfit/nfit.h
查看文件

@@ -118,10 +118,8 @@ enum nfit_dimm_notifiers {
};
enum nfit_ars_state {
ARS_REQ,
ARS_REQ_REDO,
ARS_DONE,
ARS_SHORT,
ARS_REQ_SHORT,
ARS_REQ_LONG,
ARS_FAILED,
};
@@ -159,6 +157,13 @@ struct nfit_memdev {
struct acpi_nfit_memory_map memdev[0];
};
enum nfit_mem_flags {
NFIT_MEM_LSR,
NFIT_MEM_LSW,
NFIT_MEM_DIRTY,
NFIT_MEM_DIRTY_COUNT,
};
/* assembled tables for a given dimm/memory-device */
struct nfit_mem {
struct nvdimm *nvdimm;
@@ -178,9 +183,9 @@ struct nfit_mem {
struct acpi_nfit_desc *acpi_desc;
struct resource *flush_wpq;
unsigned long dsm_mask;
unsigned long flags;
u32 dirty_shutdown;
int family;
bool has_lsr;
bool has_lsw;
};
struct acpi_nfit_desc {
@@ -198,6 +203,7 @@ struct acpi_nfit_desc {
struct device *dev;
u8 ars_start_flags;
struct nd_cmd_ars_status *ars_status;
struct nfit_spa *scrub_spa;
struct delayed_work dwork;
struct list_head list;
struct kernfs_node *scrub_count_state;
@@ -252,7 +258,8 @@ struct nfit_blk {
extern struct list_head acpi_descs;
extern struct mutex acpi_desc_lock;
int acpi_nfit_ars_rescan(struct acpi_nfit_desc *acpi_desc, unsigned long flags);
int acpi_nfit_ars_rescan(struct acpi_nfit_desc *acpi_desc,
enum nfit_ars_state req_type);
#ifdef CONFIG_X86_MCE
void nfit_mce_register(void);