diff options
Diffstat (limited to 'tools/testing/nvdimm/test/iomap.c')
| -rw-r--r-- | tools/testing/nvdimm/test/iomap.c | 93 |
1 files changed, 59 insertions, 34 deletions
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; |