1 /* Public domain. */ 2 3 #ifndef _LINUX_GFP_H 4 #define _LINUX_GFP_H 5 6 #include <sys/types.h> 7 #include <sys/malloc.h> 8 #include <uvm/uvm_extern.h> 9 10 #include <linux/mmzone.h> 11 12 #define __GFP_ZERO M_ZERO 13 #define __GFP_DMA32 0x00010000 14 #define __GFP_NOWARN 0 15 #define __GFP_NORETRY 0 16 #define __GFP_RETRY_MAYFAIL 0 17 #define __GFP_MOVABLE 0 18 #define __GFP_COMP 0 19 #define __GFP_KSWAPD_RECLAIM M_NOWAIT 20 #define __GFP_HIGHMEM 0 21 #define __GFP_RECLAIMABLE 0 22 #define __GFP_NOMEMALLOC 0 23 24 #define GFP_ATOMIC M_NOWAIT 25 #define GFP_NOWAIT M_NOWAIT 26 #define GFP_KERNEL (M_WAITOK | M_CANFAIL) 27 #define GFP_USER (M_WAITOK | M_CANFAIL) 28 #define GFP_HIGHUSER 0 29 #define GFP_DMA32 __GFP_DMA32 30 #define GFP_TRANSHUGE_LIGHT 0 31 32 static inline bool 33 gfpflags_allow_blocking(const unsigned int flags) 34 { 35 return (flags & M_WAITOK) != 0; 36 } 37 38 struct vm_page *alloc_pages(unsigned int, unsigned int); 39 void __free_pages(struct vm_page *, unsigned int); 40 41 static inline struct vm_page * 42 alloc_page(unsigned int gfp_mask) 43 { 44 return alloc_pages(gfp_mask, 0); 45 } 46 47 static inline void 48 __free_page(struct vm_page *page) 49 { 50 __free_pages(page, 0); 51 } 52 53 static inline unsigned long 54 __get_free_page(unsigned int gfp_mask) 55 { 56 void *addr = km_alloc(PAGE_SIZE, &kv_page, &kp_dirty, &kd_nowait); 57 return (unsigned long)addr; 58 } 59 60 static inline void 61 free_page(unsigned long addr) 62 { 63 km_free((void *)addr, PAGE_SIZE, &kv_page, &kp_dirty); 64 } 65 66 #endif 67