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authorLinus Torvalds <torvalds@linux-foundation.org>2016-01-13 19:15:14 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-01-13 19:15:14 -0800
commitd080827f850ba4df5b955d5ca8c8c0fc92fe18c0 (patch)
tree37262315200bbbe50bdd64ce3011951a92855159 /tools
parentcbd88cd4c07f9361914ab7fd7e21c9227986fe68 (diff)
parent8b63b6bfc1a551acf154061699028c7032d7890c (diff)
Merge tag 'libnvdimm-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm updates from Dan Williams: "The bulk of this has appeared in -next and independently received a build success notification from the kbuild robot. The 'for-4.5/block- dax' topic branch was rebased over the weekend to drop the "block device end-of-life" rework that Al would like to see re-implemented with a notifier, and to address bug reports against the badblocks integration. There is pending feedback against "libnvdimm: Add a poison list and export badblocks" received last week. Linda identified some localized fixups that we will handle incrementally. Summary: - Media error handling: The 'badblocks' implementation that originated in md-raid is up-levelled to a generic capability of a block device. This initial implementation is limited to being consulted in the pmem block-i/o path. Later, 'badblocks' will be consulted when creating dax mappings. - Raw block device dax: For virtualization and other cases that want large contiguous mappings of persistent memory, add the capability to dax-mmap a block device directly. - Increased /dev/mem restrictions: Add an option to treat all io-memory as IORESOURCE_EXCLUSIVE, i.e. disable /dev/mem access while a driver is actively using an address range. This behavior is controlled via the new CONFIG_IO_STRICT_DEVMEM option and can be overridden by the existing "iomem=relaxed" kernel command line option. - Miscellaneous fixes include a 'pfn'-device huge page alignment fix, block device shutdown crash fix, and other small libnvdimm fixes" * tag 'libnvdimm-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (32 commits) block: kill disk_{check|set|clear|alloc}_badblocks libnvdimm, pmem: nvdimm_read_bytes() badblocks support pmem, dax: disable dax in the presence of bad blocks pmem: fail io-requests to known bad blocks libnvdimm: convert to statically allocated badblocks libnvdimm: don't fail init for full badblocks list block, badblocks: introduce devm_init_badblocks block: clarify badblocks lifetime badblocks: rename badblocks_free to badblocks_exit libnvdimm, pmem: move definition of nvdimm_namespace_add_poison to nd.h libnvdimm: Add a poison list and export badblocks nfit_test: Enable DSMs for all test NFITs md: convert to use the generic badblocks code block: Add badblock management for gendisks badblocks: Add core badblock management code block: fix del_gendisk() vs blkdev_ioctl crash block: enable dax for raw block devices block: introduce bdev_file_inode() restrict /dev/mem to idle io memory ranges arch: consolidate CONFIG_STRICT_DEVM in lib/Kconfig.debug ...
Diffstat (limited to 'tools')
-rw-r--r--tools/testing/nvdimm/Kbuild2
-rw-r--r--tools/testing/nvdimm/test/iomap.c93
-rw-r--r--tools/testing/nvdimm/test/nfit.c11
3 files changed, 72 insertions, 34 deletions
diff --git a/tools/testing/nvdimm/Kbuild b/tools/testing/nvdimm/Kbuild
index 38b00ecb2ed5..a34bfd0c8928 100644
--- a/tools/testing/nvdimm/Kbuild
+++ b/tools/testing/nvdimm/Kbuild
@@ -9,6 +9,8 @@ ldflags-y += --wrap=memunmap
ldflags-y += --wrap=__devm_request_region
ldflags-y += --wrap=__request_region
ldflags-y += --wrap=__release_region
+ldflags-y += --wrap=devm_memremap_pages
+ldflags-y += --wrap=phys_to_pfn_t
DRIVERS := ../../../drivers
NVDIMM_SRC := $(DRIVERS)/nvdimm
diff --git a/tools/testing/nvdimm/test/iomap.c b/tools/testing/nvdimm/test/iomap.c
index b7251314bbc0..7ec7df9e7fc7 100644
--- a/tools/testing/nvdimm/test/iomap.c
+++ b/tools/testing/nvdimm/test/iomap.c
@@ -16,6 +16,7 @@
#include <linux/module.h>
#include <linux/types.h>
#include <linux/io.h>
+#include <linux/mm.h>
#include "nfit_test.h"
static LIST_HEAD(iomap_head);
@@ -41,7 +42,7 @@ void nfit_test_teardown(void)
}
EXPORT_SYMBOL(nfit_test_teardown);
-static struct nfit_test_resource *get_nfit_res(resource_size_t resource)
+static struct nfit_test_resource *__get_nfit_res(resource_size_t resource)
{
struct iomap_ops *ops;
@@ -51,14 +52,22 @@ static struct nfit_test_resource *get_nfit_res(resource_size_t resource)
return NULL;
}
-void __iomem *__nfit_test_ioremap(resource_size_t offset, unsigned long size,
- void __iomem *(*fallback_fn)(resource_size_t, unsigned long))
+static struct nfit_test_resource *get_nfit_res(resource_size_t resource)
{
- struct nfit_test_resource *nfit_res;
+ struct nfit_test_resource *res;
rcu_read_lock();
- nfit_res = get_nfit_res(offset);
+ res = __get_nfit_res(resource);
rcu_read_unlock();
+
+ return res;
+}
+
+void __iomem *__nfit_test_ioremap(resource_size_t offset, unsigned long size,
+ void __iomem *(*fallback_fn)(resource_size_t, unsigned long))
+{
+ struct nfit_test_resource *nfit_res = get_nfit_res(offset);
+
if (nfit_res)
return (void __iomem *) nfit_res->buf + offset
- nfit_res->res->start;
@@ -68,11 +77,8 @@ void __iomem *__nfit_test_ioremap(resource_size_t offset, unsigned long size,
void __iomem *__wrap_devm_ioremap_nocache(struct device *dev,
resource_size_t offset, unsigned long size)
{
- struct nfit_test_resource *nfit_res;
+ struct nfit_test_resource *nfit_res = get_nfit_res(offset);
- rcu_read_lock();
- nfit_res = get_nfit_res(offset);
- rcu_read_unlock();
if (nfit_res)
return (void __iomem *) nfit_res->buf + offset
- nfit_res->res->start;
@@ -83,25 +89,58 @@ EXPORT_SYMBOL(__wrap_devm_ioremap_nocache);
void *__wrap_devm_memremap(struct device *dev, resource_size_t offset,
size_t size, unsigned long flags)
{
- struct nfit_test_resource *nfit_res;
+ struct nfit_test_resource *nfit_res = get_nfit_res(offset);
- rcu_read_lock();
- nfit_res = get_nfit_res(offset);
- rcu_read_unlock();
if (nfit_res)
return nfit_res->buf + offset - nfit_res->res->start;
return devm_memremap(dev, offset, size, flags);
}
EXPORT_SYMBOL(__wrap_devm_memremap);
+#ifdef __HAVE_ARCH_PTE_DEVMAP
+#include <linux/memremap.h>
+#include <linux/pfn_t.h>
+
+void *__wrap_devm_memremap_pages(struct device *dev, struct resource *res,
+ struct percpu_ref *ref, struct vmem_altmap *altmap)
+{
+ resource_size_t offset = res->start;
+ struct nfit_test_resource *nfit_res = get_nfit_res(offset);
+
+ if (nfit_res)
+ return nfit_res->buf + offset - nfit_res->res->start;
+ return devm_memremap_pages(dev, res, ref, altmap);
+}
+EXPORT_SYMBOL(__wrap_devm_memremap_pages);
+
+pfn_t __wrap_phys_to_pfn_t(dma_addr_t addr, unsigned long flags)
+{
+ struct nfit_test_resource *nfit_res = get_nfit_res(addr);
+
+ if (nfit_res)
+ flags &= ~PFN_MAP;
+ return phys_to_pfn_t(addr, flags);
+}
+EXPORT_SYMBOL(__wrap_phys_to_pfn_t);
+#else
+/* to be removed post 4.5-rc1 */
+void *__wrap_devm_memremap_pages(struct device *dev, struct resource *res)
+{
+ resource_size_t offset = res->start;
+ struct nfit_test_resource *nfit_res = get_nfit_res(offset);
+
+ if (nfit_res)
+ return nfit_res->buf + offset - nfit_res->res->start;
+ return devm_memremap_pages(dev, res);
+}
+EXPORT_SYMBOL(__wrap_devm_memremap_pages);
+#endif
+
void *__wrap_memremap(resource_size_t offset, size_t size,
unsigned long flags)
{
- struct nfit_test_resource *nfit_res;
+ struct nfit_test_resource *nfit_res = get_nfit_res(offset);
- rcu_read_lock();
- nfit_res = get_nfit_res(offset);
- rcu_read_unlock();
if (nfit_res)
return nfit_res->buf + offset - nfit_res->res->start;
return memremap(offset, size, flags);
@@ -110,11 +149,8 @@ EXPORT_SYMBOL(__wrap_memremap);
void __wrap_devm_memunmap(struct device *dev, void *addr)
{
- struct nfit_test_resource *nfit_res;
+ struct nfit_test_resource *nfit_res = get_nfit_res((long) addr);
- rcu_read_lock();
- nfit_res = get_nfit_res((unsigned long) addr);
- rcu_read_unlock();
if (nfit_res)
return;
return devm_memunmap(dev, addr);
@@ -135,11 +171,7 @@ EXPORT_SYMBOL(__wrap_ioremap_wc);
void __wrap_iounmap(volatile void __iomem *addr)
{
- struct nfit_test_resource *nfit_res;
-
- rcu_read_lock();
- nfit_res = get_nfit_res((unsigned long) addr);
- rcu_read_unlock();
+ struct nfit_test_resource *nfit_res = get_nfit_res((long) addr);
if (nfit_res)
return;
return iounmap(addr);
@@ -148,11 +180,8 @@ EXPORT_SYMBOL(__wrap_iounmap);
void __wrap_memunmap(void *addr)
{
- struct nfit_test_resource *nfit_res;
+ struct nfit_test_resource *nfit_res = get_nfit_res((long) addr);
- rcu_read_lock();
- nfit_res = get_nfit_res((unsigned long) addr);
- rcu_read_unlock();
if (nfit_res)
return;
return memunmap(addr);
@@ -166,9 +195,7 @@ static struct resource *nfit_test_request_region(struct device *dev,
struct nfit_test_resource *nfit_res;
if (parent == &iomem_resource) {
- rcu_read_lock();
nfit_res = get_nfit_res(start);
- rcu_read_unlock();
if (nfit_res) {
struct resource *res = nfit_res->res + 1;
@@ -218,9 +245,7 @@ void __wrap___release_region(struct resource *parent, resource_size_t start,
struct nfit_test_resource *nfit_res;
if (parent == &iomem_resource) {
- rcu_read_lock();
nfit_res = get_nfit_res(start);
- rcu_read_unlock();
if (nfit_res) {
struct resource *res = nfit_res->res + 1;
diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c
index 51cf8256c6cd..90bd2ea41032 100644
--- a/tools/testing/nvdimm/test/nfit.c
+++ b/tools/testing/nvdimm/test/nfit.c
@@ -248,6 +248,8 @@ static int nfit_test_cmd_ars_status(struct nd_cmd_ars_status *nd_cmd,
nd_cmd->out_length = 256;
nd_cmd->num_records = 0;
+ nd_cmd->address = 0;
+ nd_cmd->length = -1ULL;
nd_cmd->status = 0;
return 0;
@@ -1088,6 +1090,8 @@ static void nfit_test1_setup(struct nfit_test *t)
struct acpi_nfit_memory_map *memdev;
struct acpi_nfit_control_region *dcr;
struct acpi_nfit_system_address *spa;
+ struct nvdimm_bus_descriptor *nd_desc;
+ struct acpi_nfit_desc *acpi_desc;
offset = 0;
/* spa0 (flat range with no bdw aliasing) */
@@ -1135,6 +1139,13 @@ static void nfit_test1_setup(struct nfit_test *t)
dcr->command_size = 0;
dcr->status_offset = 0;
dcr->status_size = 0;
+
+ acpi_desc = &t->acpi_desc;
+ set_bit(ND_CMD_ARS_CAP, &acpi_desc->bus_dsm_force_en);
+ set_bit(ND_CMD_ARS_START, &acpi_desc->bus_dsm_force_en);
+ set_bit(ND_CMD_ARS_STATUS, &acpi_desc->bus_dsm_force_en);
+ nd_desc = &acpi_desc->nd_desc;
+ nd_desc->ndctl = nfit_test_ctl;
}
static int nfit_test_blk_do_io(struct nd_blk_region *ndbr, resource_size_t dpa,