1 #include "syslib.h"
2
3 #include <sys/mman.h>
4 #include <minix/vm.h>
5 #include <stdarg.h>
6 #include <string.h>
7
8 void *
vm_map_phys(endpoint_t who,void * phaddr,size_t len)9 vm_map_phys(endpoint_t who, void *phaddr, size_t len)
10 {
11 message m;
12 int r;
13
14 memset(&m, 0, sizeof(m));
15 m.m_lsys_vm_map_phys.ep = who;
16 m.m_lsys_vm_map_phys.phaddr = (phys_bytes)phaddr;
17 m.m_lsys_vm_map_phys.len = len;
18
19 r = _taskcall(VM_PROC_NR, VM_MAP_PHYS, &m);
20
21 if (r != OK) return MAP_FAILED;
22
23 r = sef_llvm_add_special_mem_region(m.m_lsys_vm_map_phys.reply,
24 len, NULL);
25 if(r < 0) {
26 printf("vm_map_phys: add_special_mem_region failed: %d\n", r);
27 }
28
29 return m.m_lsys_vm_map_phys.reply;
30 }
31
32 int
vm_unmap_phys(endpoint_t who,void * vaddr,size_t len)33 vm_unmap_phys(endpoint_t who, void *vaddr, size_t len)
34 {
35 message m;
36 int r;
37
38 memset(&m, 0, sizeof(m));
39 m.m_lsys_vm_unmap_phys.ep = who;
40 m.m_lsys_vm_unmap_phys.vaddr = vaddr;
41
42 r = _taskcall(VM_PROC_NR, VM_UNMAP_PHYS, &m);
43
44 if(r != OK) return r;
45
46 r = sef_llvm_del_special_mem_region_by_addr(vaddr);
47 if(r < 0) {
48 printf("vm_map_phys: del_special_mem_region failed: %d\n", r);
49 }
50
51 return OK;
52 }
53