servers/vm/vm.h

   1
   2 /* Memory flags to pt_allocmap() and alloc_mem(). */
   3 #define PAF_CLEAR       0x01    /* Clear physical memory. */
   4 #define PAF_CONTIG      0x02    /* Physically contiguous. */
   5 #define PAF_ALIGN64K    0x04    /* Aligned to 64k boundary. */
   6 #define PAF_LOWER16MB   0x08
   7 #define PAF_LOWER1MB    0x10
   8 #define PAF_ALIGN16K    0x40    /* Aligned to 16k boundary. */
   9
  10 #define MARK do { if(mark) { printf("%d\n", __LINE__); } } while(0)
  11
  12 /* special value for v in pt_allocmap */
  13 #define AM_AUTO         ((u32_t) -1)
  14
  15 /* Compile in asserts and custom sanity checks at all? */
  16 #define SANITYCHECKS    0
  17 #define VMSTATS         0
  18
  19 /* VM behaviour */
  20 #define MEMPROTECT      0       /* Slab objects not mapped. Access with USE() */
  21 #define JUNKFREE        0       /* Fill freed pages with junk */
  22
  23 /* How noisy are we supposed to be? */
  24 #define VERBOSE         0
  25 #define LU_DEBUG        0
  26
  27 /* Minimum stack region size - 64MB. */
  28 #define MINSTACKREGION  (64*1024*1024)
  29
  30 /* If so, this level: */
  31 #define SCL_NONE        0       /* No sanity checks - assert()s only. */
  32 #define SCL_TOP         1       /* Main loop and other high-level places. */
  33 #define SCL_FUNCTIONS   2       /* Function entry/exit. */
  34 #define SCL_DETAIL      3       /* Detailled steps. */
  35 #define SCL_MAX         3       /* Highest value. */
  36
  37 /* Type of page allocations. */
  38 #define VMP_SPARE       0
  39 #define VMP_PAGETABLE   1
  40 #define VMP_PAGEDIR     2
  41 #define VMP_SLAB        3
  42 #define VMP_CATEGORIES  4
  43
  44 /* Flags to pt_writemap(). */
  45 #define WMF_OVERWRITE           0x01    /* Caller knows map may overwrite. */
  46 #define WMF_WRITEFLAGSONLY      0x02    /* Copy physaddr and update flags. */
  47 #define WMF_FREE                0x04    /* Free pages overwritten. */
  48 #define WMF_VERIFY              0x08    /* Check pagetable contents. */
  49
  50 #define MAP_NONE        0xFFFFFFFE
  51 #define NO_MEM ((phys_clicks) MAP_NONE)  /* returned by alloc_mem() with mem is up */
  52