diff options
Diffstat (limited to 'sys/compat/linuxkpi/common/include/linux/gfp.h')
| -rw-r--r-- | sys/compat/linuxkpi/common/include/linux/gfp.h | 44 |
1 files changed, 39 insertions, 5 deletions
diff --git a/sys/compat/linuxkpi/common/include/linux/gfp.h b/sys/compat/linuxkpi/common/include/linux/gfp.h index 6273fa969db8..f6cce379924d 100644 --- a/sys/compat/linuxkpi/common/include/linux/gfp.h +++ b/sys/compat/linuxkpi/common/include/linux/gfp.h @@ -25,13 +25,10 @@ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $FreeBSD$ */ #ifndef _LINUXKPI_LINUX_GFP_H_ #define _LINUXKPI_LINUX_GFP_H_ -#include <sys/cdefs.h> #include <sys/types.h> #include <sys/systm.h> #include <sys/malloc.h> @@ -47,6 +44,7 @@ #define __GFP_HIGHMEM 0 #define __GFP_ZERO M_ZERO #define __GFP_NORETRY 0 +#define __GFP_NOMEMALLOC 0 #define __GFP_RECLAIM 0 #define __GFP_RECLAIMABLE 0 #define __GFP_RETRY_MAYFAIL 0 @@ -71,6 +69,7 @@ #define GFP_HIGHUSER_MOVABLE M_WAITOK #define GFP_IOFS M_NOWAIT #define GFP_NOIO M_NOWAIT +#define GFP_NOFS M_NOWAIT #define GFP_DMA32 __GFP_DMA32 #define GFP_TEMPORARY M_NOWAIT #define GFP_NATIVE_MASK (M_NOWAIT | M_WAITOK | M_USE_RESERVE | M_ZERO) @@ -80,6 +79,11 @@ CTASSERT((__GFP_DMA32 & GFP_NATIVE_MASK) == 0); CTASSERT((__GFP_BITS_MASK & GFP_NATIVE_MASK) == GFP_NATIVE_MASK); +struct page_frag_cache { + void *va; + int pagecnt_bias; +}; + /* * Resolve a page into a virtual address: * @@ -92,8 +96,11 @@ extern void *linux_page_address(struct page *); /* * Page management for unmapped pages: */ -extern vm_page_t linux_alloc_pages(gfp_t flags, unsigned int order); -extern void linux_free_pages(vm_page_t page, unsigned int order); +extern struct page *linux_alloc_pages(gfp_t flags, unsigned int order); +extern void linux_free_pages(struct page *page, unsigned int order); +void *linuxkpi_page_frag_alloc(struct page_frag_cache *, size_t, gfp_t); +void linuxkpi_page_frag_free(void *); +void linuxkpi__page_frag_cache_drain(struct page *, size_t); static inline struct page * alloc_page(gfp_t flags) @@ -130,6 +137,12 @@ __free_page(struct page *page) linux_free_pages(page, 0); } +static inline struct page * +dev_alloc_pages(unsigned int order) +{ + return (linux_alloc_pages(GFP_ATOMIC, order)); +} + /* * Page management for mapped pages: */ @@ -175,6 +188,27 @@ free_page(uintptr_t addr) linux_free_kmem(addr, 0); } +static inline void * +page_frag_alloc(struct page_frag_cache *pfc, size_t fragsz, gfp_t gfp) +{ + + return (linuxkpi_page_frag_alloc(pfc, fragsz, gfp)); +} + +static inline void +page_frag_free(void *addr) +{ + + linuxkpi_page_frag_free(addr); +} + +static inline void +__page_frag_cache_drain(struct page *page, size_t count) +{ + + linuxkpi__page_frag_cache_drain(page, count); +} + static inline bool gfpflags_allow_blocking(const gfp_t gfp_flags) { |