diff options
Diffstat (limited to 'include/linux/hyperv.h')
| -rw-r--r-- | include/linux/hyperv.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index 9c19149c0e1a..83456dc181a8 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -14,6 +14,7 @@ #include <uapi/linux/hyperv.h> +#include <linux/mm.h> #include <linux/types.h> #include <linux/scatterlist.h> #include <linux/list.h> @@ -23,6 +24,7 @@ #include <linux/mod_devicetable.h> #include <linux/interrupt.h> #include <linux/reciprocal_div.h> +#include <asm/hyperv-tlfs.h> #define MAX_PAGE_BUFFER_COUNT 32 #define MAX_MULTIPAGE_BUFFER_COUNT 32 /* 128K */ @@ -1676,4 +1678,17 @@ struct hyperv_pci_block_ops { extern struct hyperv_pci_block_ops hvpci_block_ops; +static inline unsigned long virt_to_hvpfn(void *addr) +{ + phys_addr_t paddr; + + if (is_vmalloc_addr(addr)) + paddr = page_to_phys(vmalloc_to_page(addr)) + + offset_in_page(addr); + else + paddr = __pa(addr); + + return paddr >> HV_HYP_PAGE_SHIFT; +} + #endif /* _HYPERV_H */ |