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-rw-r--r--Documentation/filesystems/proc.txt22
-rw-r--r--arch/x86/mm/init.c4
-rw-r--r--arch/x86/mm/init_64.c4
-rw-r--r--drivers/acpi/nfit.c298
-rw-r--r--drivers/acpi/nfit.h2
-rw-r--r--drivers/base/devres.c19
-rw-r--r--drivers/nvdimm/pmem.c28
-rw-r--r--fs/binfmt_elf.c10
-rw-r--r--fs/binfmt_elf_fdpic.c15
-rw-r--r--include/linux/device.h16
-rw-r--r--include/linux/pmem.h26
-rw-r--r--include/linux/sched.h4
-rw-r--r--kernel/memremap.c16
-rw-r--r--tools/testing/nvdimm/test/nfit.c164
14 files changed, 494 insertions, 134 deletions
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index 1e4a6cc1b6ea..402ab99e409f 100644
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -1605,16 +1605,16 @@ Documentation/accounting.
---------------------------------------------------------------
When a process is dumped, all anonymous memory is written to a core file as
long as the size of the core file isn't limited. But sometimes we don't want
-to dump some memory segments, for example, huge shared memory. Conversely,
-sometimes we want to save file-backed memory segments into a core file, not
-only the individual files.
+to dump some memory segments, for example, huge shared memory or DAX.
+Conversely, sometimes we want to save file-backed memory segments into a core
+file, not only the individual files.
/proc/<pid>/coredump_filter allows you to customize which memory segments
will be dumped when the <pid> process is dumped. coredump_filter is a bitmask
of memory types. If a bit of the bitmask is set, memory segments of the
corresponding memory type are dumped, otherwise they are not dumped.
-The following 7 memory types are supported:
+The following 9 memory types are supported:
- (bit 0) anonymous private memory
- (bit 1) anonymous shared memory
- (bit 2) file-backed private memory
@@ -1623,20 +1623,22 @@ The following 7 memory types are supported:
effective only if the bit 2 is cleared)
- (bit 5) hugetlb private memory
- (bit 6) hugetlb shared memory
+ - (bit 7) DAX private memory
+ - (bit 8) DAX shared memory
Note that MMIO pages such as frame buffer are never dumped and vDSO pages
are always dumped regardless of the bitmask status.
- Note bit 0-4 doesn't effect any hugetlb memory. hugetlb memory are only
- effected by bit 5-6.
+ Note that bits 0-4 don't affect hugetlb or DAX memory. hugetlb memory is
+ only affected by bit 5-6, and DAX is only affected by bits 7-8.
-Default value of coredump_filter is 0x23; this means all anonymous memory
-segments and hugetlb private memory are dumped.
+The default value of coredump_filter is 0x33; this means all anonymous memory
+segments, ELF header pages and hugetlb private memory are dumped.
If you don't want to dump all shared memory segments attached to pid 1234,
-write 0x21 to the process's proc file.
+write 0x31 to the process's proc file.
- $ echo 0x21 > /proc/1234/coredump_filter
+ $ echo 0x31 > /proc/1234/coredump_filter
When a new process is created, the process inherits the bitmask status from its
parent. It is useful to set up coredump_filter before the program runs.
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 1f37cb2b56a9..493f54172b4a 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -354,7 +354,7 @@ static int __meminit split_mem_range(struct map_range *mr, int nr_range,
}
for (i = 0; i < nr_range; i++)
- printk(KERN_DEBUG " [mem %#010lx-%#010lx] page %s\n",
+ pr_debug(" [mem %#010lx-%#010lx] page %s\n",
mr[i].start, mr[i].end - 1,
page_size_string(&mr[i]));
@@ -401,7 +401,7 @@ unsigned long __init_refok init_memory_mapping(unsigned long start,
unsigned long ret = 0;
int nr_range, i;
- pr_info("init_memory_mapping: [mem %#010lx-%#010lx]\n",
+ pr_debug("init_memory_mapping: [mem %#010lx-%#010lx]\n",
start, end - 1);
memset(mr, 0, sizeof(mr));
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 5ed62eff31bd..ec081fe0ce2c 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -1270,7 +1270,7 @@ static int __meminit vmemmap_populate_hugepages(unsigned long start,
/* check to see if we have contiguous blocks */
if (p_end != p || node_start != node) {
if (p_start)
- printk(KERN_DEBUG " [%lx-%lx] PMD -> [%p-%p] on node %d\n",
+ pr_debug(" [%lx-%lx] PMD -> [%p-%p] on node %d\n",
addr_start, addr_end-1, p_start, p_end-1, node_start);
addr_start = addr;
node_start = node;
@@ -1368,7 +1368,7 @@ void register_page_bootmem_memmap(unsigned long section_nr,
void __meminit vmemmap_populate_print_last(void)
{
if (p_start) {
- printk(KERN_DEBUG " [%lx-%lx] PMD -> [%p-%p] on node %d\n",
+ pr_debug(" [%lx-%lx] PMD -> [%p-%p] on node %d\n",
addr_start, addr_end-1, p_start, p_end-1, node_start);
p_start = NULL;
p_end = NULL;
diff --git a/drivers/acpi/nfit.c b/drivers/acpi/nfit.c
index 6e26761a27da..f7dab53b352a 100644
--- a/drivers/acpi/nfit.c
+++ b/drivers/acpi/nfit.c
@@ -33,6 +33,15 @@ static bool force_enable_dimms;
module_param(force_enable_dimms, bool, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(force_enable_dimms, "Ignore _STA (ACPI DIMM device) status");
+struct nfit_table_prev {
+ struct list_head spas;
+ struct list_head memdevs;
+ struct list_head dcrs;
+ struct list_head bdws;
+ struct list_head idts;
+ struct list_head flushes;
+};
+
static u8 nfit_uuid[NFIT_UUID_MAX][16];
const u8 *to_nfit_uuid(enum nfit_uuids id)
@@ -221,12 +230,20 @@ static int nfit_spa_type(struct acpi_nfit_system_address *spa)
}
static bool add_spa(struct acpi_nfit_desc *acpi_desc,
+ struct nfit_table_prev *prev,
struct acpi_nfit_system_address *spa)
{
struct device *dev = acpi_desc->dev;
- struct nfit_spa *nfit_spa = devm_kzalloc(dev, sizeof(*nfit_spa),
- GFP_KERNEL);
+ struct nfit_spa *nfit_spa;
+
+ list_for_each_entry(nfit_spa, &prev->spas, list) {
+ if (memcmp(nfit_spa->spa, spa, sizeof(*spa)) == 0) {
+ list_move_tail(&nfit_spa->list, &acpi_desc->spas);
+ return true;
+ }
+ }
+ nfit_spa = devm_kzalloc(dev, sizeof(*nfit_spa), GFP_KERNEL);
if (!nfit_spa)
return false;
INIT_LIST_HEAD(&nfit_spa->list);
@@ -239,12 +256,19 @@ static bool add_spa(struct acpi_nfit_desc *acpi_desc,
}
static bool add_memdev(struct acpi_nfit_desc *acpi_desc,
+ struct nfit_table_prev *prev,
struct acpi_nfit_memory_map *memdev)
{
struct device *dev = acpi_desc->dev;
- struct nfit_memdev *nfit_memdev = devm_kzalloc(dev,
- sizeof(*nfit_memdev), GFP_KERNEL);
+ struct nfit_memdev *nfit_memdev;
+ list_for_each_entry(nfit_memdev, &prev->memdevs, list)
+ if (memcmp(nfit_memdev->memdev, memdev, sizeof(*memdev)) == 0) {
+ list_move_tail(&nfit_memdev->list, &acpi_desc->memdevs);
+ return true;
+ }
+
+ nfit_memdev = devm_kzalloc(dev, sizeof(*nfit_memdev), GFP_KERNEL);
if (!nfit_memdev)
return false;
INIT_LIST_HEAD(&nfit_memdev->list);
@@ -257,12 +281,19 @@ static bool add_memdev(struct acpi_nfit_desc *acpi_desc,
}
static bool add_dcr(struct acpi_nfit_desc *acpi_desc,
+ struct nfit_table_prev *prev,
struct acpi_nfit_control_region *dcr)
{
struct device *dev = acpi_desc->dev;
- struct nfit_dcr *nfit_dcr = devm_kzalloc(dev, sizeof(*nfit_dcr),
- GFP_KERNEL);
+ struct nfit_dcr *nfit_dcr;
+
+ list_for_each_entry(nfit_dcr, &prev->dcrs, list)
+ if (memcmp(nfit_dcr->dcr, dcr, sizeof(*dcr)) == 0) {
+ list_move_tail(&nfit_dcr->list, &acpi_desc->dcrs);
+ return true;
+ }
+ nfit_dcr = devm_kzalloc(dev, sizeof(*nfit_dcr), GFP_KERNEL);
if (!nfit_dcr)
return false;
INIT_LIST_HEAD(&nfit_dcr->list);
@@ -274,12 +305,19 @@ static bool add_dcr(struct acpi_nfit_desc *acpi_desc,
}
static bool add_bdw(struct acpi_nfit_desc *acpi_desc,
+ struct nfit_table_prev *prev,
struct acpi_nfit_data_region *bdw)
{
struct device *dev = acpi_desc->dev;
- struct nfit_bdw *nfit_bdw = devm_kzalloc(dev, sizeof(*nfit_bdw),
- GFP_KERNEL);
+ struct nfit_bdw *nfit_bdw;
+
+ list_for_each_entry(nfit_bdw, &prev->bdws, list)
+ if (memcmp(nfit_bdw->bdw, bdw, sizeof(*bdw)) == 0) {
+ list_move_tail(&nfit_bdw->list, &acpi_desc->bdws);
+ return true;
+ }
+ nfit_bdw = devm_kzalloc(dev, sizeof(*nfit_bdw), GFP_KERNEL);
if (!nfit_bdw)
return false;
INIT_LIST_HEAD(&nfit_bdw->list);
@@ -291,12 +329,19 @@ static bool add_bdw(struct acpi_nfit_desc *acpi_desc,
}
static bool add_idt(struct acpi_nfit_desc *acpi_desc,
+ struct nfit_table_prev *prev,
struct acpi_nfit_interleave *idt)
{
struct device *dev = acpi_desc->dev;
- struct nfit_idt *nfit_idt = devm_kzalloc(dev, sizeof(*nfit_idt),
- GFP_KERNEL);
+ struct nfit_idt *nfit_idt;
+
+ list_for_each_entry(nfit_idt, &prev->idts, list)
+ if (memcmp(nfit_idt->idt, idt, sizeof(*idt)) == 0) {
+ list_move_tail(&nfit_idt->list, &acpi_desc->idts);
+ return true;
+ }
+ nfit_idt = devm_kzalloc(dev, sizeof(*nfit_idt), GFP_KERNEL);
if (!nfit_idt)
return false;
INIT_LIST_HEAD(&nfit_idt->list);
@@ -308,12 +353,19 @@ static bool add_idt(struct acpi_nfit_desc *acpi_desc,
}
static bool add_flush(struct acpi_nfit_desc *acpi_desc,
+ struct nfit_table_prev *prev,
struct acpi_nfit_flush_address *flush)
{
struct device *dev = acpi_desc->dev;
- struct nfit_flush *nfit_flush = devm_kzalloc(dev, sizeof(*nfit_flush),
- GFP_KERNEL);
+ struct nfit_flush *nfit_flush;
+ list_for_each_entry(nfit_flush, &prev->flushes, list)
+ if (memcmp(nfit_flush->flush, flush, sizeof(*flush)) == 0) {
+ list_move_tail(&nfit_flush->list, &acpi_desc->flushes);
+ return true;
+ }
+
+ nfit_flush = devm_kzalloc(dev, sizeof(*nfit_flush), GFP_KERNEL);
if (!nfit_flush)
return false;
INIT_LIST_HEAD(&nfit_flush->list);
@@ -324,8 +376,8 @@ static bool add_flush(struct acpi_nfit_desc *acpi_desc,
return true;
}
-static void *add_table(struct acpi_nfit_desc *acpi_desc, void *table,
- const void *end)
+static void *add_table(struct acpi_nfit_desc *acpi_desc,
+ struct nfit_table_prev *prev, void *table, const void *end)
{
struct device *dev = acpi_desc->dev;
struct acpi_nfit_header *hdr;
@@ -335,29 +387,35 @@ static void *add_table(struct acpi_nfit_desc *acpi_desc, void *table,
return NULL;
hdr = table;
+ if (!hdr->length) {
+ dev_warn(dev, "found a zero length table '%d' parsing nfit\n",
+ hdr->type);
+ return NULL;
+ }
+
switch (hdr->type) {
case ACPI_NFIT_TYPE_SYSTEM_ADDRESS:
- if (!add_spa(acpi_desc, table))
+ if (!add_spa(acpi_desc, prev, table))
return err;
break;
case ACPI_NFIT_TYPE_MEMORY_MAP:
- if (!add_memdev(acpi_desc, table))
+ if (!add_memdev(acpi_desc, prev, table))
return err;
break;
case ACPI_NFIT_TYPE_CONTROL_REGION:
- if (!add_dcr(acpi_desc, table))
+ if (!add_dcr(acpi_desc, prev, table))
return err;
break;
case ACPI_NFIT_TYPE_DATA_REGION:
- if (!add_bdw(acpi_desc, table))
+ if (!add_bdw(acpi_desc, prev, table))
return err;
break;
case ACPI_NFIT_TYPE_INTERLEAVE:
- if (!add_idt(acpi_desc, table))
+ if (!add_idt(acpi_desc, prev, table))
return err;
break;
case ACPI_NFIT_TYPE_FLUSH_ADDRESS:
- if (!add_flush(acpi_desc, table))
+ if (!add_flush(acpi_desc, prev, table))
return err;
break;
case ACPI_NFIT_TYPE_SMBIOS:
@@ -802,12 +860,7 @@ static int acpi_nfit_register_dimms(struct acpi_nfit_desc *acpi_desc)
device_handle = __to_nfit_memdev(nfit_mem)->device_handle;
nvdimm = acpi_nfit_dimm_by_handle(acpi_desc, device_handle);
if (nvdimm) {
- /*
- * If for some reason we find multiple DCRs the
- * first one wins
- */
- dev_err(acpi_desc->dev, "duplicate DCR detected: %s\n",
- nvdimm_name(nvdimm));
+ dimm_count++;
continue;
}
@@ -1476,6 +1529,9 @@ static int acpi_nfit_register_region(struct acpi_nfit_desc *acpi_desc,
struct resource res;
int count = 0, rc;
+ if (nfit_spa->is_registered)
+ return 0;
+
if (spa->range_index == 0) {
dev_dbg(acpi_desc->dev, "%s: detected invalid spa index\n",
__func__);
@@ -1529,6 +1585,8 @@ static int acpi_nfit_register_region(struct acpi_nfit_desc *acpi_desc,
if (!nvdimm_volatile_region_create(nvdimm_bus, ndr_desc))
return -ENOMEM;
}
+
+ nfit_spa->is_registered = 1;
return 0;
}
@@ -1545,71 +1603,101 @@ static int acpi_nfit_register_regions(struct acpi_nfit_desc *acpi_desc)
return 0;
}
+static int acpi_nfit_check_deletions(struct acpi_nfit_desc *acpi_desc,
+ struct nfit_table_prev *prev)
+{
+ struct device *dev = acpi_desc->dev;
+
+ if (!list_empty(&prev->spas) ||
+ !list_empty(&prev->memdevs) ||
+ !list_empty(&prev->dcrs) ||
+ !list_empty(&prev->bdws) ||
+ !list_empty(&prev->idts) ||
+ !list_empty(&prev->flushes)) {
+ dev_err(dev, "new nfit deletes entries (unsupported)\n");
+ return -ENXIO;
+ }
+ return 0;
+}
+
int acpi_nfit_init(struct acpi_nfit_desc *acpi_desc, acpi_size sz)
{
struct device *dev = acpi_desc->dev;
+ struct nfit_table_prev prev;
const void *end;
u8 *data;
int rc;
- INIT_LIST_HEAD(&acpi_desc->spa_maps);
- INIT_LIST_HEAD(&acpi_desc->spas);
- INIT_LIST_HEAD(&acpi_desc->dcrs);
- INIT_LIST_HEAD(&acpi_desc->bdws);
- INIT_LIST_HEAD(&acpi_desc->idts);
- INIT_LIST_HEAD(&acpi_desc->flushes);
- INIT_LIST_HEAD(&acpi_desc->memdevs);
- INIT_LIST_HEAD(&acpi_desc->dimms);
- mutex_init(&acpi_desc->spa_map_mutex);
+ mutex_lock(&acpi_desc->init_mutex);
+
+ INIT_LIST_HEAD(&prev.spas);
+ INIT_LIST_HEAD(&prev.memdevs);
+ INIT_LIST_HEAD(&prev.dcrs);
+ INIT_LIST_HEAD(&prev.bdws);
+ INIT_LIST_HEAD(&prev.idts);
+ INIT_LIST_HEAD(&prev.flushes);
+
+ list_cut_position(&prev.spas, &acpi_desc->spas,
+ acpi_desc->spas.prev);
+ list_cut_position(&prev.memdevs, &acpi_desc->memdevs,
+ acpi_desc->memdevs.prev);
+ list_cut_position(&prev.dcrs, &acpi_desc->dcrs,
+ acpi_desc->dcrs.prev);
+ list_cut_position(&prev.bdws, &acpi_desc->bdws,
+ acpi_desc->bdws.prev);
+ list_cut_position(&prev.idts, &acpi_desc->idts,
+ acpi_desc->idts.prev);
+ list_cut_position(&prev.flushes, &acpi_desc->flushes,
+ acpi_desc->flushes.prev);
data = (u8 *) acpi_desc->nfit;
end = data + sz;
data += sizeof(struct acpi_table_nfit);
while (!IS_ERR_OR_NULL(data))
- data = add_table(acpi_desc, data, end);
+ data = add_table(acpi_desc, &prev, data, end);
if (IS_ERR(data)) {
dev_dbg(dev, "%s: nfit table parsing error: %ld\n", __func__,
PTR_ERR(data));
- return PTR_ERR(data);
+ rc = PTR_ERR(data);
+ goto out_unlock;
}
- if (nfit_mem_init(acpi_desc) != 0)
- return -ENOMEM;
+ rc = acpi_nfit_check_deletions(acpi_desc, &prev);
+ if (rc)
+ goto out_unlock;
+
+ if (nfit_mem_init(acpi_desc) != 0) {
+ rc = -ENOMEM;
+ goto out_unlock;
+ }
acpi_nfit_init_dsms(acpi_desc);
rc = acpi_nfit_register_dimms(acpi_desc);
if (rc)
- return rc;
+ goto out_unlock;
+
+ rc = acpi_nfit_register_regions(acpi_desc);
- return acpi_nfit_register_regions(acpi_desc);
+ out_unlock:
+ mutex_unlock(&acpi_desc->init_mutex);
+ return rc;
}
EXPORT_SYMBOL_GPL(acpi_nfit_init);
-static int acpi_nfit_add(struct acpi_device *adev)
+static struct acpi_nfit_desc *acpi_nfit_desc_init(struct acpi_device *adev)
{
struct nvdimm_bus_descriptor *nd_desc;
struct acpi_nfit_desc *acpi_desc;
struct device *dev = &adev->dev;
- struct acpi_table_header *tbl;
- acpi_status status = AE_OK;
- acpi_size sz;
- int rc;
-
- status = acpi_get_table_with_size("NFIT", 0, &tbl, &sz);
- if (ACPI_FAILURE(status)) {
- dev_err(dev, "failed to find NFIT\n");
- return -ENXIO;
- }
acpi_desc = devm_kzalloc(dev, sizeof(*acpi_desc), GFP_KERNEL);
if (!acpi_desc)
- return -ENOMEM;
+ return ERR_PTR(-ENOMEM);
dev_set_drvdata(dev, acpi_desc);
acpi_desc->dev = dev;
- acpi_desc->nfit = (struct acpi_table_nfit *) tbl;
acpi_desc->blk_do_io = acpi_nfit_blk_region_do_io;
nd_desc = &acpi_desc->nd_desc;
nd_desc->provider_name = "ACPI.NFIT";
@@ -1617,8 +1705,57 @@ static int acpi_nfit_add(struct acpi_device *adev)
nd_desc->attr_groups = acpi_nfit_attribute_groups;
acpi_desc->nvdimm_bus = nvdimm_bus_register(dev, nd_desc);
- if (!acpi_desc->nvdimm_bus)
- return -ENXIO;
+ if (!acpi_desc->nvdimm_bus) {
+ devm_kfree(dev, acpi_desc);
+ return ERR_PTR(-ENXIO);
+ }
+
+ INIT_LIST_HEAD(&acpi_desc->spa_maps);
+ INIT_LIST_HEAD(&acpi_desc->spas);
+ INIT_LIST_HEAD(&acpi_desc->dcrs);
+ INIT_LIST_HEAD(&acpi_desc->bdws);
+ INIT_LIST_HEAD(&acpi_desc->idts);
+ INIT_LIST_HEAD(&acpi_desc->flushes);
+ INIT_LIST_HEAD(&acpi_desc->memdevs);
+ INIT_LIST_HEAD(&acpi_desc->dimms);
+ mutex_init(&acpi_desc->spa_map_mutex);
+ mutex_init(&acpi_desc->init_mutex);
+
+ return acpi_desc;
+}
+
+static int acpi_nfit_add(struct acpi_device *adev)
+{
+ struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER, NULL };
+ struct acpi_nfit_desc *acpi_desc;
+ struct device *dev = &adev->dev;
+ struct acpi_table_header *tbl;
+ acpi_status status = AE_OK;
+ acpi_size sz;
+ int rc;
+
+ status = acpi_get_table_with_size("NFIT", 0, &tbl, &sz);
+ if (ACPI_FAILURE(status)) {
+ /* This is ok, we could have an nvdimm hotplugged later */
+ dev_dbg(dev, "failed to find NFIT at startup\n");
+ return 0;
+ }
+
+ acpi_desc = acpi_nfit_desc_init(adev);
+ if (IS_ERR(acpi_desc)) {
+ dev_err(dev, "%s: error initializing acpi_desc: %ld\n",
+ __func__, PTR_ERR(acpi_desc));
+ return PTR_ERR(acpi_desc);
+ }
+
+ acpi_desc->nfit = (struct acpi_table_nfit *) tbl;
+
+ /* Evaluate _FIT and override with that if present */
+ status = acpi_evaluate_object(adev->handle, "_FIT", NULL, &buf);
+ if (ACPI_SUCCESS(status) && buf.length > 0) {
+ acpi_desc->nfit = (struct acpi_table_nfit *)buf.pointer;
+ sz = buf.length;
+ }
rc = acpi_nfit_init(acpi_desc, sz);
if (rc) {
@@ -1636,6 +1773,54 @@ static int acpi_nfit_remove(struct acpi_device *adev)
return 0;
}
+static void acpi_nfit_notify(struct acpi_device *adev, u32 event)
+{
+ struct acpi_nfit_desc *acpi_desc = dev_get_drvdata(&adev->dev);
+ struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER, NULL };
+ struct acpi_table_nfit *nfit_saved;
+ struct device *dev = &adev->dev;
+ acpi_status status;
+ int ret;
+
+ dev_dbg(dev, "%s: event: %d\n", __func__, event);
+
+ device_lock(dev);
+ if (!dev->driver) {
+ /* dev->driver may be null if we're being removed */
+ dev_dbg(dev, "%s: no driver found for dev\n", __func__);
+ return;
+ }
+
+ if (!acpi_desc) {
+ acpi_desc = acpi_nfit_desc_init(adev);
+ if (IS_ERR(acpi_desc)) {
+ dev_err(dev, "%s: error initializing acpi_desc: %ld\n",
+ __func__, PTR_ERR(acpi_desc));
+ goto out_unlock;
+ }
+ }
+
+ /* Evaluate _FIT */
+ status = acpi_evaluate_object(adev->handle, "_FIT", NULL, &buf);
+ if (ACPI_FAILURE(status)) {
+ dev_err(dev, "failed to evaluate _FIT\n");
+ goto out_unlock;
+ }
+
+ nfit_saved = acpi_desc->nfit;
+ acpi_desc->nfit = (struct acpi_table_nfit *)buf.pointer;
+ ret = acpi_nfit_init(acpi_desc, buf.length);
+ if (!ret) {
+ /* Merge failed, restore old nfit, and exit */
+ acpi_desc->nfit = nfit_saved;
+ dev_err(dev, "failed to merge updated NFIT\n");
+ }
+ kfree(buf.pointer);
+
+ out_unlock:
+ device_unlock(dev);
+}
+
static const struct acpi_device_id acpi_nfit_ids[] = {
{ "ACPI0012", 0 },
{ "", 0 },
@@ -1648,6 +1833,7 @@ static struct acpi_driver acpi_nfit_driver = {
.ops = {
.add = acpi_nfit_add,
.remove = acpi_nfit_remove,
+ .notify = acpi_nfit_notify,
},
};
diff --git a/drivers/acpi/nfit.h b/drivers/acpi/nfit.h
index 329a1eba0c16..2ea5c0797c8f 100644
--- a/drivers/acpi/nfit.h
+++ b/drivers/acpi/nfit.h
@@ -48,6 +48,7 @@ enum {
struct nfit_spa {
struct acpi_nfit_system_address *spa;
struct list_head list;
+ int is_registered;
};
struct nfit_dcr {
@@ -97,6 +98,7 @@ struct acpi_nfit_desc {
struct nvdimm_bus_descriptor nd_desc;
struct acpi_table_nfit *nfit;
struct mutex spa_map_mutex;
+ struct mutex init_mutex;
struct list_head spa_maps;
struct list_head memdevs;
struct list_head flushes;
diff --git a/drivers/base/devres.c b/drivers/base/devres.c
index 875464690117..8fc654f0807b 100644
--- a/drivers/base/devres.c
+++ b/drivers/base/devres.c
@@ -82,12 +82,12 @@ static struct devres_group * node_to_group(struct devres_node *node)
}
static __always_inline struct devres * alloc_dr(dr_release_t release,
- size_t size, gfp_t gfp)
+ size_t size, gfp_t gfp, int nid)
{
size_t tot_size = sizeof(struct devres) + size;
struct devres *dr;
- dr = kmalloc_track_caller(tot_size, gfp);
+ dr = kmalloc_node_track_caller(tot_size, gfp, nid);
if (unlikely(!dr))
return NULL;
@@ -106,24 +106,25 @@ static void add_dr(struct device *dev, struct devres_node *node)
}
#ifdef CONFIG_DEBUG_DEVRES
-void * __devres_alloc(dr_release_t release, size_t size, gfp_t gfp,
+void * __devres_alloc_node(dr_release_t release, size_t size, gfp_t gfp, int nid,
const char *name)
{
struct devres *dr;
- dr = alloc_dr(release, size, gfp | __GFP_ZERO);
+ dr = alloc_dr(release, size, gfp | __GFP_ZERO, nid);
if (unlikely(!dr))
return NULL;
set_node_dbginfo(&dr->node, name, size);
return dr->data;
}
-EXPORT_SYMBOL_GPL(__devres_alloc);
+EXPORT_SYMBOL_GPL(__devres_alloc_node);
#else
/**
* devres_alloc - Allocate device resource data
* @release: Release function devres will be associated with
* @size: Allocation size
* @gfp: Allocation flags
+ * @nid: NUMA node
*
* Allocate devres of @size bytes. The allocated area is zeroed, then
* associated with @release. The returned pointer can be passed to
@@ -132,16 +133,16 @@ EXPORT_SYMBOL_GPL(__devres_alloc);
* RETURNS:
* Pointer to allocated devres on success, NULL on failure.
*/
-void * devres_alloc(dr_release_t release, size_t size, gfp_t gfp)
+void * devres_alloc_node(dr_release_t release, size_t size, gfp_t gfp, int nid)
{
struct devres *dr;
- dr = alloc_dr(release, size, gfp | __GFP_ZERO);
+ dr = alloc_dr(release, size, gfp | __GFP_ZERO, nid);
if (unlikely(!dr))
return NULL;
return dr->data;
}
-EXPORT_SYMBOL_GPL(devres_alloc);
+EXPORT_SYMBOL_GPL(devres_alloc_node);
#endif
/**
@@ -776,7 +777,7 @@ void * devm_kmalloc(struct device *dev, size_t size, gfp_t gfp)
struct devres *dr;
/* use raw alloc_dr for kmalloc caller tracing */
- dr = alloc_dr(devm_kmalloc_release, size, gfp);
+ dr = alloc_dr(devm_kmalloc_release, size, gfp, dev_to_node(dev));
if (unlikely(!dr))
return NULL;
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index 0ba6a978f227..349f03e7ed06 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -150,18 +150,15 @@ static struct pmem_device *pmem_alloc(struct device *dev,
return ERR_PTR(-EBUSY);
}
- if (pmem_should_map_pages(dev)) {
- void *addr = devm_memremap_pages(dev, res);
+ if (pmem_should_map_pages(dev))
+ pmem->virt_addr = (void __pmem *) devm_memremap_pages(dev, res);
+ else
+ pmem->virt_addr = (void __pmem *) devm_memremap(dev,
+ pmem->phys_addr, pmem->size,
+ ARCH_MEMREMAP_PMEM);
- if (IS_ERR(addr))
- return addr;
- pmem->virt_addr = (void __pmem *) addr;
- } else {
- pmem->virt_addr = memremap_pmem(dev, pmem->phys_addr,
- pmem->size);
- if (!pmem->virt_addr)
- return ERR_PTR(-ENXIO);
- }
+ if (IS_ERR(pmem->virt_addr))
+ return (void __force *) pmem->virt_addr;
return pmem;
}
@@ -179,9 +176,10 @@ static void pmem_detach_disk(struct pmem_device *pmem)
static int pmem_attach_disk(struct device *dev,
struct nd_namespace_common *ndns, struct pmem_device *pmem)
{
+ int nid = dev_to_node(dev);
struct gendisk *disk;
- pmem->pmem_queue = blk_alloc_queue(GFP_KERNEL);
+ pmem->pmem_queue = blk_alloc_queue_node(GFP_KERNEL, nid);
if (!pmem->pmem_queue)
return -ENOMEM;
@@ -191,7 +189,7 @@ static int pmem_attach_disk(struct device *dev,
blk_queue_bounce_limit(pmem->pmem_queue, BLK_BOUNCE_ANY);
queue_flag_set_unlocked(QUEUE_FLAG_NONROT, pmem->pmem_queue);
- disk = alloc_disk(0);
+ disk = alloc_disk_node(0, nid);
if (!disk) {
blk_cleanup_queue(pmem->pmem_queue);
return -ENOMEM;
@@ -363,8 +361,8 @@ static int nvdimm_namespace_attach_pfn(struct nd_namespace_common *ndns)
/* establish pfn range for lookup, and switch to direct map */
pmem = dev_get_drvdata(dev);
- memunmap_pmem(dev, pmem->virt_addr);
- pmem->virt_addr = (void __pmem *)devm_memremap_pages(dev, &nsio->res);
+ devm_memunmap(dev, (void __force *) pmem->virt_addr);
+ pmem->virt_addr = (void __pmem *) devm_memremap_pages(dev, &nsio->res);
if (IS_ERR(pmem->virt_addr)) {
rc = PTR_ERR(pmem->virt_addr);
goto err;
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 6b659967898e..5f399ea1d20a 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -35,6 +35,7 @@
#include <linux/utsname.h>
#include <linux/coredump.h>
#include <linux/sched.h>
+#include <linux/dax.h>
#include <asm/uaccess.h>
#include <asm/param.h>
#include <asm/page.h>
@@ -1236,6 +1237,15 @@ static unsigned long vma_dump_size(struct vm_area_struct *vma,
if (vma->vm_flags & VM_DONTDUMP)
return 0;
+ /* support for DAX */
+ if (vma_is_dax(vma)) {
+ if ((vma->vm_flags & VM_SHARED) && FILTER(DAX_SHARED))
+ goto whole;
+ if (!(vma->vm_flags & VM_SHARED) && FILTER(DAX_PRIVATE))
+ goto whole;
+ return 0;
+ }
+
/* Hugetlb memory check */
if (vma->vm_flags & VM_HUGETLB) {
if ((vma->vm_flags & VM_SHARED) && FILTER(HUGETLB_SHARED))
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 50d15b7b0ca9..b1adb92e69de 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -35,6 +35,7 @@
#include <linux/elf-fdpic.h>
#include <linux/elfcore.h>
#include <linux/coredump.h>
+#include <linux/dax.h>
#include <asm/uaccess.h>
#include <asm/param.h>
@@ -1231,6 +1232,20 @@ static int maydump(struct vm_area_struct *vma, unsigned long mm_flags)
return 0;
}
+ /* support for DAX */
+ if (vma_is_dax(vma)) {
+ if (vma->vm_flags & VM_SHARED) {
+ dump_ok = test_bit(MMF_DUMP_DAX_SHARED, &mm_flags);
+ kdcore("%08lx: %08lx: %s (DAX shared)", vma->vm_start,
+ vma->vm_flags, dump_ok ? "yes" : "no");
+ } else {
+ dump_ok = test_bit(MMF_DUMP_DAX_PRIVATE, &mm_flags);
+ kdcore("%08lx: %08lx: %s (DAX private)", vma->vm_start,
+ vma->vm_flags, dump_ok ? "yes" : "no");
+ }
+ return dump_ok;
+ }
+
/* By default, dump shared memory if mapped from an anonymous file. */
if (vma->vm_flags & VM_SHARED) {
if (file_inode(vma->vm_file)->i_nlink == 0) {
diff --git a/include/linux/device.h b/include/linux/device.h
index 5d7bc6349930..b8f411b57dcb 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -604,13 +604,21 @@ typedef void (*dr_release_t)(struct device *dev, void *res);
typedef int (*dr_match_t)(struct device *dev, void *res, void *match_data);
#ifdef CONFIG_DEBUG_DEVRES
-extern void *__devres_alloc(dr_release_t release, size_t size, gfp_t gfp,
- const char *name);
+extern void *__devres_alloc_node(dr_release_t release, size_t size, gfp_t gfp,
+ int nid, const char *name);
#define devres_alloc(release, size, gfp) \
- __devres_alloc(release, size, gfp, #release)
+ __devres_alloc_node(release, size, gfp, NUMA_NO_NODE, #release)
+#define devres_alloc_node(release, size, gfp, nid) \
+ __devres_alloc_node(release, size, gfp, nid, #release)
#else
-extern void *devres_alloc(dr_release_t release, size_t size, gfp_t gfp);
+extern void *devres_alloc_node(dr_release_t release, size_t size, gfp_t gfp,
+ int nid);
+static inline void *devres_alloc(dr_release_t release, size_t size, gfp_t gfp)
+{
+ return devres_alloc_node(release, size, gfp, NUMA_NO_NODE);
+}
#endif
+
extern void devres_for_each_res(struct device *dev, dr_release_t release,
dr_match_t match, void *match_data,
void (*fn)(struct device *, void *, void *),
diff --git a/include/linux/pmem.h b/include/linux/pmem.h
index 85f810b33917..acfea8ce4a07 100644
--- a/include/linux/pmem.h
+++ b/include/linux/pmem.h
@@ -65,11 +65,6 @@ static inline void memcpy_from_pmem(void *dst, void __pmem const *src, size_t si
memcpy(dst, (void __force const *) src, size);
}
-static inline void memunmap_pmem(struct device *dev, void __pmem *addr)
-{
- devm_memunmap(dev, (void __force *) addr);
-}
-
static inline bool arch_has_pmem_api(void)
{
return IS_ENABLED(CONFIG_ARCH_HAS_PMEM_API);
@@ -93,7 +88,7 @@ static inline bool arch_has_wmb_pmem(void)
* These defaults seek to offer decent performance and minimize the
* window between i/o completion and writes being durable on media.
* However, it is undefined / architecture specific whether
- * default_memremap_pmem + default_memcpy_to_pmem is sufficient for
+ * ARCH_MEMREMAP_PMEM + default_memcpy_to_pmem is sufficient for
* making data durable relative to i/o completion.
*/
static inline void default_memcpy_to_pmem(void __pmem *dst, const void *src,
@@ -117,25 +112,6 @@ static inline void default_clear_pmem(void __pmem *addr, size_t size)
}
/**
- * memremap_pmem - map physical persistent memory for pmem api
- * @offset: physical address of persistent memory
- * @size: size of the mapping
- *
- * Establish a mapping of the architecture specific memory type expected
- * by memcpy_to_pmem() and wmb_pmem(). For example, it may be
- * the case that an uncacheable or writethrough mapping is sufficient,
- * or a writeback mapping provided memcpy_to_pmem() and
- * wmb_pmem() arrange for the data to be written through the
- * cache to persistent media.
- */
-static inline void __pmem *memremap_pmem(struct device *dev,
- resource_size_t offset, unsigned long size)
-{
- return (void __pmem *) devm_memremap(dev, offset, size,
- ARCH_MEMREMAP_PMEM);
-}
-
-/**
* memcpy_to_pmem - copy data to persistent memory
* @dst: destination buffer for the copy
* @src: source buffer for the copy
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 4069febaa34a..edad7a43edea 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -484,9 +484,11 @@ static inline int get_dumpable(struct mm_struct *mm)
#define MMF_DUMP_ELF_HEADERS 6
#define MMF_DUMP_HUGETLB_PRIVATE 7
#define MMF_DUMP_HUGETLB_SHARED 8
+#define MMF_DUMP_DAX_PRIVATE 9
+#define MMF_DUMP_DAX_SHARED 10
#define MMF_DUMP_FILTER_SHIFT MMF_DUMPABLE_BITS
-#define MMF_DUMP_FILTER_BITS 7
+#define MMF_DUMP_FILTER_BITS 9
#define MMF_DUMP_FILTER_MASK \
(((1 << MMF_DUMP_FILTER_BITS) - 1) << MMF_DUMP_FILTER_SHIFT)
#define MMF_DUMP_FILTER_DEFAULT \
diff --git a/kernel/memremap.c b/kernel/memremap.c
index 9d6b55587eaa..7658d32c5c78 100644
--- a/kernel/memremap.c
+++ b/kernel/memremap.c
@@ -124,9 +124,10 @@ void *devm_memremap(struct device *dev, resource_size_t offset,
{
void **ptr, *addr;
- ptr = devres_alloc(devm_memremap_release, sizeof(*ptr), GFP_KERNEL);
+ ptr = devres_alloc_node(devm_memremap_release, sizeof(*ptr), GFP_KERNEL,
+ dev_to_node(dev));
if (!ptr)
- return NULL;
+ return ERR_PTR(-ENOMEM);
addr = memremap(offset, size, flags);
if (addr) {
@@ -141,9 +142,8 @@ EXPORT_SYMBOL(devm_memremap);
void devm_memunmap(struct device *dev, void *addr)
{
- WARN_ON(devres_destroy(dev, devm_memremap_release, devm_memremap_match,
- addr));
- memunmap(addr);
+ WARN_ON(devres_release(dev, devm_memremap_release,
+ devm_memremap_match, addr));
}
EXPORT_SYMBOL(devm_memunmap);
@@ -176,8 +176,8 @@ void *devm_memremap_pages(struct device *dev, struct resource *res)
if (is_ram == REGION_INTERSECTS)
return __va(res->start);
- page_map = devres_alloc(devm_memremap_pages_release,
- sizeof(*page_map), GFP_KERNEL);
+ page_map = devres_alloc_node(devm_memremap_pages_release,
+ sizeof(*page_map), GFP_KERNEL, dev_to_node(dev));
if (!page_map)
return ERR_PTR(-ENOMEM);
@@ -185,7 +185,7 @@ void *devm_memremap_pages(struct device *dev, struct resource *res)
nid = dev_to_node(dev);
if (nid < 0)
- nid = 0;
+ nid = numa_mem_id();
error = arch_add_memory(nid, res->start, resource_size(res), true);
if (error) {
diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c
index 021e6f97f33e..dce346aa94ea 100644
--- a/tools/testing/nvdimm/test/nfit.c
+++ b/tools/testing/nvdimm/test/nfit.c
@@ -17,8 +17,10 @@
#include <linux/vmalloc.h>
#include <linux/device.h>
#include <linux/module.h>
+#include <linux/mutex.h>
#include <linux/ndctl.h>
#include <linux/sizes.h>
+#include <linux/list.h>
#include <linux/slab.h>
#include <nfit.h>
#include <nd.h>
@@ -44,6 +46,15 @@
* +------+ | blk5.0 | pm1.0 | 3 region5
* +-------------------------+----------+-+-------+
*
+ * +--+---+
+ * | cpu1 |
+ * +--+---+ (Hotplug DIMM)
+ * | +----------------------------------------------+
+ * +--+---+ | blk6.0/pm7.0 | 4 region6/7
+ * | imc0 +--+----------------------------------------------+
+ * +------+
+ *
+ *
* *) In this layout we have four dimms and two memory controllers in one
* socket. Each unique interface (BLK or PMEM) to DPA space
* is identified by a region device with a dynamically assigned id.
@@ -85,8 +96,8 @@
* reference an NVDIMM.
*/
enum {
- NUM_PM = 2,
- NUM_DCR = 4,
+ NUM_PM = 3,
+ NUM_DCR = 5,
NUM_BDW = NUM_DCR,
NUM_SPA = NUM_PM + NUM_DCR + NUM_BDW,
NUM_MEM = NUM_DCR + NUM_BDW + 2 /* spa0 iset */ + 4 /* spa1 iset */,
@@ -115,6 +126,7 @@ static u32 handle[NUM_DCR] = {
[1] = NFIT_DIMM_HANDLE(0, 0, 0, 0, 1),
[2] = NFIT_DIMM_HANDLE(0, 0, 1, 0, 0),
[3] = NFIT_DIMM_HANDLE(0, 0, 1, 0, 1),
+ [4] = NFIT_DIMM_HANDLE(0, 1, 0, 0, 0),
};
struct nfit_test {
@@ -138,6 +150,7 @@ struct nfit_test {
dma_addr_t *dcr_dma;
int (*alloc)(struct nfit_test *t);
void (*setup)(struct nfit_test *t);
+ int setup_hotplug;
};
static struct nfit_test *to_nfit_test(struct device *dev)
@@ -428,6 +441,10 @@ static int nfit_test0_alloc(struct nfit_test *t)
if (!t->spa_set[1])
return -ENOMEM;
+ t->spa_set[2] = test_alloc_coherent(t, SPA0_SIZE, &t->spa_set_dma[2]);
+ if (!t->spa_set[2])
+ return -ENOMEM;
+
for (i = 0; i < NUM_DCR; i++) {
t->dimm[i] = test_alloc(t, DIMM_SIZE, &t->dimm_dma[i]);
if (!t->dimm[i])
@@ -950,6 +967,126 @@ static void nfit_test0_setup(struct nfit_test *t)
flush->hint_count = 1;
flush->hint_address[0] = t->flush_dma[3];
+ if (t->setup_hotplug) {
+ offset = offset + sizeof(struct acpi_nfit_flush_address) * 4;
+ /* dcr-descriptor4 */
+ dcr = nfit_buf + offset;
+ dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION;
+ dcr->header.length = sizeof(struct acpi_nfit_control_region);
+ dcr->region_index = 4+1;
+ dcr->vendor_id = 0xabcd;
+ dcr->device_id = 0;
+ dcr->revision_id = 1;
+ dcr->serial_number = ~handle[4];
+ dcr->windows = 1;
+ dcr->window_size = DCR_SIZE;
+ dcr->command_offset = 0;
+ dcr->command_size = 8;
+ dcr->status_offset = 8;
+ dcr->status_size = 4;
+
+ offset = offset + sizeof(struct acpi_nfit_control_region);
+ /* bdw4 (spa/dcr4, dimm4) */
+ bdw = nfit_buf + offset;
+ bdw->header.type = ACPI_NFIT_TYPE_DATA_REGION;
+ bdw->header.length = sizeof(struct acpi_nfit_data_region);
+ bdw->region_index = 4+1;
+ bdw->windows = 1;
+ bdw->offset = 0;
+ bdw->size = BDW_SIZE;
+ bdw->capacity = DIMM_SIZE;
+ bdw->start_address = 0;
+
+ offset = offset + sizeof(struct acpi_nfit_data_region);
+ /* spa10 (dcr4) dimm4 */
+ spa = nfit_buf + offset;
+ spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
+ spa->header.length = sizeof(*spa);
+ memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16);
+ spa->range_index = 10+1;
+ spa->address = t->dcr_dma[4];
+ spa->length = DCR_SIZE;
+
+ /*
+ * spa11 (single-dimm interleave for hotplug, note storage
+ * does not actually alias the related block-data-window
+ * regions)
+ */
+ spa = nfit_buf + offset + sizeof(*spa);
+ spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
+ spa->header.length = sizeof(*spa);
+ memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_PM), 16);
+ spa->range_index = 11+1;
+ spa->address = t->spa_set_dma[2];
+ spa->length = SPA0_SIZE;
+
+ /* spa12 (bdw for dcr4) dimm4 */
+ spa = nfit_buf + offset + sizeof(*spa) * 2;
+ spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS;
+ spa->header.length = sizeof(*spa);
+ memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16);
+ spa->range_index = 12+1;
+ spa->address = t->dimm_dma[4];
+ spa->length = DIMM_SIZE;
+
+ offset = offset + sizeof(*spa) * 3;
+ /* mem-region14 (spa/dcr4, dimm4) */
+ memdev = nfit_buf + offset;
+ memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
+ memdev->header.length = sizeof(*memdev);
+ memdev->device_handle = handle[4];
+ memdev->physical_id = 4;
+ memdev->region_id = 0;
+ memdev->range_index = 10+1;
+ memdev->region_index = 4+1;
+ memdev->region_size = 0;
+ memdev->region_offset = 0;
+ memdev->address = 0;
+ memdev->interleave_index = 0;
+ memdev->interleave_ways = 1;
+
+ /* mem-region15 (spa0, dimm4) */
+ memdev = nfit_buf + offset +
+ sizeof(struct acpi_nfit_memory_map);
+ memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
+ memdev->header.length = sizeof(*memdev);
+ memdev->device_handle = handle[4];
+ memdev->physical_id = 4;
+ memdev->region_id = 0;
+ memdev->range_index = 11+1;
+ memdev->region_index = 4+1;
+ memdev->region_size = SPA0_SIZE;
+ memdev->region_offset = t->spa_set_dma[2];
+ memdev->address = 0;
+ memdev->interleave_index = 0;
+ memdev->interleave_ways = 1;
+
+ /* mem-region16 (spa/dcr4, dimm4) */
+ memdev = nfit_buf + offset +
+ sizeof(struct acpi_nfit_memory_map) * 2;
+ memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP;
+ memdev->header.length = sizeof(*memdev);
+ memdev->device_handle = handle[4];
+ memdev->physical_id = 4;
+ memdev->region_id = 0;
+ memdev->range_index = 12+1;
+ memdev->region_index = 4+1;
+ memdev->region_size = 0;
+ memdev->region_offset = 0;
+ memdev->address = 0;
+ memdev->interleave_index = 0;
+ memdev->interleave_ways = 1;
+
+ offset = offset + sizeof(struct acpi_nfit_memory_map) * 3;
+ /* flush3 (dimm4) */
+ flush = nfit_buf + offset;
+ flush->header.type = ACPI_NFIT_TYPE_FLUSH_ADDRESS;
+ flush->header.length = sizeof(struct acpi_nfit_flush_address);
+ flush->device_handle = handle[4];
+ flush->hint_count = 1;
+ flush->hint_address[0] = t->flush_dma[4];
+ }
+
acpi_desc = &t->acpi_desc;
set_bit(ND_CMD_GET_CONFIG_SIZE, &acpi_desc->dimm_dsm_force_en);
set_bit(ND_CMD_GET_CONFIG_DATA, &acpi_desc->dimm_dsm_force_en);
@@ -1108,6 +1245,29 @@ static int nfit_test_probe(struct platform_device *pdev)
if (!acpi_desc->nvdimm_bus)
return -ENXIO;
+ INIT_LIST_HEAD(&acpi_desc->spa_maps);
+ INIT_LIST_HEAD(&acpi_desc->spas);
+ INIT_LIST_HEAD(&acpi_desc->dcrs);
+ INIT_LIST_HEAD(&acpi_desc->bdws);
+ INIT_LIST_HEAD(&acpi_desc->idts);
+ INIT_LIST_HEAD(&acpi_desc->flushes);
+ INIT_LIST_HEAD(&acpi_desc->memdevs);
+ INIT_LIST_HEAD(&acpi_desc->dimms);
+ mutex_init(&acpi_desc->spa_map_mutex);
+ mutex_init(&acpi_desc->init_mutex);
+
+ rc = acpi_nfit_init(acpi_desc, nfit_test->nfit_size);
+ if (rc) {
+ nvdimm_bus_unregister(acpi_desc->nvdimm_bus);
+ return rc;
+ }
+
+ if (nfit_test->setup != nfit_test0_setup)
+ return 0;
+
+ nfit_test->setup_hotplug = 1;
+ nfit_test->setup(nfit_test);
+
rc = acpi_nfit_init(acpi_desc, nfit_test->nfit_size);
if (rc) {
nvdimm_bus_unregister(acpi_desc->nvdimm_bus);
generated by cgit (git 2.34.1) at 2024-05-21 17:54:45 +0000