Merge branch 'for-4.12/dax' into libnvdimm-for-next

3 files changed, 25 insertions, 20 deletions

diff --git a/tools/testing/nvdimm/Kbuild b/tools/testing/nvdimm/Kbuild
index 6dcb3c4d53be..d870520da68b 100644
--- a/tools/testing/nvdimm/Kbuild
+++ b/tools/testing/nvdimm/Kbuild
@@ -28,7 +28,10 @@ obj-$(CONFIG_ND_BTT) += nd_btt.o
 obj-$(CONFIG_ND_BLK) += nd_blk.o
 obj-$(CONFIG_X86_PMEM_LEGACY) += nd_e820.o
 obj-$(CONFIG_ACPI_NFIT) += nfit.o
-obj-$(CONFIG_DEV_DAX) += dax.o dax-dev.o
+ifeq ($(CONFIG_DAX),m)
+obj-$(CONFIG_DAX) += dax.o
+endif
+obj-$(CONFIG_DEV_DAX) += device_dax.o
 obj-$(CONFIG_DEV_DAX_PMEM) += dax_pmem.o
 
 nfit-y := $(ACPI_SRC)/core.o
@@ -48,10 +51,13 @@ nd_blk-y += config_check.o
 nd_e820-y := $(NVDIMM_SRC)/e820.o
 nd_e820-y += config_check.o
 
-dax-y := $(DAX_SRC)/dax.o
-dax-y += dax-dev.o
+dax-y := $(DAX_SRC)/super.o
 dax-y += config_check.o
 
+device_dax-y := $(DAX_SRC)/device.o
+device_dax-y += dax-dev.o
+device_dax-y += config_check.o
+
 dax_pmem-y := $(DAX_SRC)/pmem.o
 dax_pmem-y += config_check.o
 
diff --git a/tools/testing/nvdimm/dax-dev.c b/tools/testing/nvdimm/dax-dev.c
index e89721d8924c..36ee3d8797c3 100644
--- a/tools/testing/nvdimm/dax-dev.c
+++ b/tools/testing/nvdimm/dax-dev.c
@@ -14,28 +14,28 @@
 #include <linux/mm.h>
 #include "../../../drivers/dax/dax-private.h"
 
-phys_addr_t dax_pgoff_to_phys(struct dax_dev *dax_dev, pgoff_t pgoff,
+phys_addr_t dax_pgoff_to_phys(struct dev_dax *dev_dax, pgoff_t pgoff,
                 unsigned long size)
 {
         struct resource *res;
         phys_addr_t addr;
         int i;
 
-        for (i = 0; i < dax_dev->num_resources; i++) {
-                res = &dax_dev->res[i];
+        for (i = 0; i < dev_dax->num_resources; i++) {
+                res = &dev_dax->res[i];
                 addr = pgoff * PAGE_SIZE + res->start;
                 if (addr >= res->start && addr <= res->end)
                         break;
                 pgoff -= PHYS_PFN(resource_size(res));
         }
 
-        if (i < dax_dev->num_resources) {
-                res = &dax_dev->res[i];
+        if (i < dev_dax->num_resources) {
+                res = &dev_dax->res[i];
                 if (addr + size - 1 <= res->end) {
                         if (get_nfit_res(addr)) {
                                 struct page *page;
 
-                                if (dax_dev->region->align > PAGE_SIZE)
+                                if (dev_dax->region->align > PAGE_SIZE)
                                         return -1;
 
                                 page = vmalloc_to_page((void *)addr);
diff --git a/tools/testing/nvdimm/pmem-dax.c b/tools/testing/nvdimm/pmem-dax.c
index c9b8c48f85fc..b53596ad601b 100644
--- a/tools/testing/nvdimm/pmem-dax.c
+++ b/tools/testing/nvdimm/pmem-dax.c
@@ -15,13 +15,13 @@
 #include <pmem.h>
 #include <nd.h>
 
-long pmem_direct_access(struct block_device *bdev, sector_t sector,
-                void **kaddr, pfn_t *pfn, long size)
+long __pmem_direct_access(struct pmem_device *pmem, pgoff_t pgoff,
+                long nr_pages, void **kaddr, pfn_t *pfn)
 {
-        struct pmem_device *pmem = bdev->bd_queue->queuedata;
-        resource_size_t offset = sector * 512 + pmem->data_offset;
+        resource_size_t offset = PFN_PHYS(pgoff) + pmem->data_offset;
 
-        if (unlikely(is_bad_pmem(&pmem->bb, sector, size)))
+        if (unlikely(is_bad_pmem(&pmem->bb, PFN_PHYS(pgoff) / 512,
+                                        PFN_PHYS(nr_pages))))
                 return -EIO;
 
         /*
@@ -34,11 +34,10 @@ long pmem_direct_access(struct block_device *bdev, sector_t sector,
                 *kaddr = pmem->virt_addr + offset;
                 page = vmalloc_to_page(pmem->virt_addr + offset);
                 *pfn = page_to_pfn_t(page);
-                dev_dbg_ratelimited(disk_to_dev(bdev->bd_disk)->parent,
-                                "%s: sector: %#llx pfn: %#lx\n", __func__,
-                                (unsigned long long) sector, page_to_pfn(page));
+                pr_debug_ratelimited("%s: pmem: %p pgoff: %#lx pfn: %#lx\n",
+                                __func__, pmem, pgoff, page_to_pfn(page));
 
-                return PAGE_SIZE;
+                return 1;
         }
 
         *kaddr = pmem->virt_addr + offset;
@@ -49,6 +48,6 @@ long pmem_direct_access(struct block_device *bdev, sector_t sector,
          * requested range.
          */
         if (unlikely(pmem->bb.count))
-                return size;
-        return pmem->size - pmem->pfn_pad - offset;
+                return nr_pages;
+        return PHYS_PFN(pmem->size - pmem->pfn_pad - offset);
 }