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| author |   Dan Williams <dan.j.williams@intel.com> | 2015-12-15 00:34:21 -0800 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2015-12-15 00:34:21 -0800 |
| commit | 979fccfb7348dbd968daf0249aa484a0297f83df (patch) | |
| tree | 76cb63d09fefff94740d5c0154c83783ee78c3de /tools | |
| parent | libnvdimm, pfn: fix pfn seed creation (diff) | |
| download | linux-dev-979fccfb7348dbd968daf0249aa484a0297f83df.tar.xz linux-dev-979fccfb7348dbd968daf0249aa484a0297f83df.zip | |
libnvdimm, pfn: enable pfn sysfs interface unit testing
The unit test infrastructure uses CMA and real memory to emulate nvdimm
resources. The call to devm_memremap_pages() can simply be mocked in
the same manner as memremap and we mock phys_to_pfn_t() to clear PFN_MAP
since these resources are not registered with in the pgmap_radix.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/nvdimm/Kbuild | 2 | ||||
| -rw-r--r-- | tools/testing/nvdimm/test/iomap.c | 48 |
2 files changed, 50 insertions, 0 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..79e110d4a81a 100644 --- a/tools/testing/nvdimm/test/iomap.c +++ b/tools/testing/nvdimm/test/iomap.c @@ -94,6 +94,54 @@ void *__wrap_devm_memremap(struct device *dev, resource_size_t offset, } 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; + + 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_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; + + rcu_read_lock(); + nfit_res = get_nfit_res(addr); + rcu_read_unlock(); + 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; + + 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_pages(dev, res); +} +EXPORT_SYMBOL(__wrap_devm_memremap_pages); +#endif + void *__wrap_memremap(resource_size_t offset, size_t size, unsigned long flags) { |