diff options
| author |   Dan Williams <dan.j.williams@intel.com> | 2016-01-15 16:56:26 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2016-01-15 17:56:32 -0800 |
| commit | d2c0f041e1bb1260629ecea2161adb9778945aa3 (patch) | |
| tree | ea5872316fdab194db4faa7a322c6d50652a1c72 /arch | |
| parent | x86, mm: introduce vmem_altmap to augment vmemmap_populate() (diff) | |
| download | linux-dev-d2c0f041e1bb1260629ecea2161adb9778945aa3.tar.xz linux-dev-d2c0f041e1bb1260629ecea2161adb9778945aa3.zip | |
libnvdimm, pfn, pmem: allocate memmap array in persistent memory
Use the new vmem_altmap capability to enable the pmem driver to arrange
for a struct page memmap to be established in persistent memory.
[linux@roeck-us.net: mn10300: declare __pfn_to_phys() to fix build error]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/ia64/include/asm/page.h | 1 | ||||
| -rw-r--r-- | arch/mn10300/include/asm/page.h | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/page.h b/arch/ia64/include/asm/page.h index ec48bb9f95e1..e8c486ef0d76 100644 --- a/arch/ia64/include/asm/page.h +++ b/arch/ia64/include/asm/page.h @@ -105,6 +105,7 @@ extern struct page *vmem_map; #ifdef CONFIG_DISCONTIGMEM # define page_to_pfn(page) ((unsigned long) (page - vmem_map)) # define pfn_to_page(pfn) (vmem_map + (pfn)) +# define __pfn_to_phys(pfn) PFN_PHYS(pfn) #else # include <asm-generic/memory_model.h> #endif diff --git a/arch/mn10300/include/asm/page.h b/arch/mn10300/include/asm/page.h index 8288e124165b..3810a6f740fd 100644 --- a/arch/mn10300/include/asm/page.h +++ b/arch/mn10300/include/asm/page.h @@ -107,6 +107,7 @@ static inline int get_order(unsigned long size) #define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) #define pfn_to_page(pfn) (mem_map + ((pfn) - __pfn_disp)) #define page_to_pfn(page) ((unsigned long)((page) - mem_map) + __pfn_disp) +#define __pfn_to_phys(pfn) PFN_PHYS(pfn) #define pfn_valid(pfn) \ ({ \ |