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 0 20 #define __GFP_HIGHMEM 0 21 #define __GFP_RECLAIMABLE 0 22 23 #define GFP_ATOMIC M_NOWAIT 24 #define GFP_NOWAIT M_NOWAIT 25 #define GFP_KERNEL (M_WAITOK | M_CANFAIL) 26 #define GFP_USER (M_WAITOK | M_CANFAIL) 27 #define GFP_HIGHUSER 0 28 #define GFP_DMA32 __GFP_DMA32 29 #define GFP_TRANSHUGE_LIGHT 0 30 31 static inline bool 32 gfpflags_allow_blocking(const unsigned int flags) 33 { 34 return (flags & M_WAITOK) != 0; 35 } 36 37 struct vm_page *alloc_pages(unsigned int, unsigned int); 38 void __free_pages(struct vm_page *, unsigned int); 39 40 static inline struct vm_page * 41 alloc_page(unsigned int gfp_mask) 42 { 43 return alloc_pages(gfp_mask, 0); 44 } 45 46 static inline void 47 __free_page(struct vm_page *page) 48 { 49 __free_pages(page, 0); 50 } 51 52 static inline unsigned long 53 __get_free_page(unsigned int gfp_mask) 54 { 55 void *addr = km_alloc(PAGE_SIZE, &kv_page, &kp_dirty, &kd_nowait); 56 return (unsigned long)addr; 57 } 58 59 static inline void 60 free_page(unsigned long addr) 61 { 62 km_free((void *)addr, PAGE_SIZE, &kv_page, &kp_dirty); 63 } 64 65 #endif 66