1 /* $OpenBSD: vmalloc.h,v 1.7 2024/03/20 02:42:17 jsg Exp $ */ 2 /* 3 * Copyright (c) 2013, 2014, 2015 Mark Kettenis 4 * 5 * Permission to use, copy, modify, and distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #ifndef _LINUX_VMALLOC_H 19 #define _LINUX_VMALLOC_H 20 21 #include <sys/param.h> 22 #include <sys/malloc.h> 23 #include <uvm/uvm_extern.h> 24 #include <linux/overflow.h> 25 #include <linux/types.h> /* for pgprot_t */ 26 27 void *vmap(struct vm_page **, unsigned int, unsigned long, pgprot_t); 28 void *vmap_pfn(unsigned long *, unsigned int, pgprot_t); 29 void vunmap(void *, size_t); 30 31 static inline void * 32 vmalloc(unsigned long size) 33 { 34 return malloc(size, M_DRM, M_WAITOK | M_CANFAIL); 35 } 36 37 static inline void * 38 vzalloc(unsigned long size) 39 { 40 return malloc(size, M_DRM, M_WAITOK | M_CANFAIL | M_ZERO); 41 } 42 43 static inline void 44 vfree(void *objp) 45 { 46 free(objp, M_DRM, 0); 47 } 48 49 50 #endif 51