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Diff for /src/sys/uvm/uvm_page.h between version 1.76.6.2 and 1.77

version 1.76.6.2, 2017/02/05 13:41:01 version 1.77, 2015/03/21 13:11:14
Line 111 
Line 111 
  * UVM and pmap(9) may use uvm_page_locked_p() to assert whether the   * UVM and pmap(9) may use uvm_page_locked_p() to assert whether the
  * page owner's lock is acquired.   * page owner's lock is acquired.
  *   *
  * A page can have one of four identities:   * A page can be in one of four life states:
  *   *
  * o free   * o free
  *   => pageq.list is entry on global free page queue   *   => pageq.list is entry on global free page queue
Line 122 
Line 122 
  * o owned by a uvm_object   * o owned by a uvm_object
  *   => pageq.queue is entry on wired page queue, if any   *   => pageq.queue is entry on wired page queue, if any
  *   => listq.queue is entry on list of pages in object   *   => listq.queue is entry on list of pages in object
  *   => uanon is NULL or the vm_anon to which it has been O->A loaned   *   => uanon is NULL
  *   => uobject is owner   *   => uobject is owner
  * o owned by a vm_anon   * o owned by a vm_anon
  *   => pageq is unused (XXX correct?)   *   => pageq is unused (XXX correct?)
Line 294  struct vm_page {
Line 294  struct vm_page {
 #define VM_PSTRAT_BSEARCH       2  #define VM_PSTRAT_BSEARCH       2
 #define VM_PSTRAT_BIGFIRST      3  #define VM_PSTRAT_BIGFIRST      3
   
   /*
    * vm_physseg: describes one segment of physical memory
    */
   struct vm_physseg {
           paddr_t start;                  /* PF# of first page in segment */
           paddr_t end;                    /* (PF# of last page in segment) + 1 */
           paddr_t avail_start;            /* PF# of first free page in segment */
           paddr_t avail_end;              /* (PF# of last free page in segment) +1  */
           struct  vm_page *pgs;           /* vm_page structures (from start) */
           struct  vm_page *lastpg;        /* vm_page structure for end */
           int     free_list;              /* which free list they belong on */
           u_int   start_hint;             /* start looking for free pages here */
                                           /* protected by uvm_fpageqlock */
   #ifdef __HAVE_PMAP_PHYSSEG
           struct  pmap_physseg pmseg;     /* pmap specific (MD) data */
   #endif
   };
   
 #ifdef _KERNEL  #ifdef _KERNEL
   
 /*  /*
Line 303  struct vm_page {
Line 321  struct vm_page {
 extern bool vm_page_zero_enable;  extern bool vm_page_zero_enable;
   
 /*  /*
    * physical memory config is stored in vm_physmem.
    */
   
   #define VM_PHYSMEM_PTR(i)       (&vm_physmem[i])
   #if VM_PHYSSEG_MAX == 1
   #define VM_PHYSMEM_PTR_SWAP(i, j) /* impossible */
   #else
   #define VM_PHYSMEM_PTR_SWAP(i, j) \
           do { vm_physmem[(i)] = vm_physmem[(j)]; } while (0)
   #endif
   
   extern struct vm_physseg vm_physmem[VM_PHYSSEG_MAX];
   extern int vm_nphysseg;
   
   /*
  * prototypes: the following prototypes define the interface to pages   * prototypes: the following prototypes define the interface to pages
  */   */
   
Line 333  bool uvm_page_locked_p(struct vm_page *)
Line 366  bool uvm_page_locked_p(struct vm_page *)
   
 int uvm_page_lookup_freelist(struct vm_page *);  int uvm_page_lookup_freelist(struct vm_page *);
   
   int vm_physseg_find(paddr_t, int *);
 struct vm_page *uvm_phys_to_vm_page(paddr_t);  struct vm_page *uvm_phys_to_vm_page(paddr_t);
 paddr_t uvm_vm_page_to_phys(const struct vm_page *);  paddr_t uvm_vm_page_to_phys(const struct vm_page *);
   
 #if !defined(PMAP_STEAL_MEMORY)  
 bool uvm_page_physget(paddr_t *);  
 #endif  
   
 /*  /*
  * macros   * macros
  */   */
Legend:
Removed from v.1.76.6.2  
changed lines
  Added in v.1.77
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