arch/um/kernel/skas/mem.c

   1 /*
   2  * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
   3  * Licensed under the GPL
   4  */
   5
   6 #include "linux/config.h"
   7 #include "linux/mm.h"
   8 #include "asm/pgtable.h"
   9 #include "mem_user.h"
  10 #include "skas.h"
  11
  12 unsigned long set_task_sizes_skas(unsigned long *host_size_out,
  13                                   unsigned long *task_size_out)
  14 {
  15         /* Round up to the nearest 4M */
  16         unsigned long top = ROUND_4M((unsigned long) &host_size_out);
  17
  18 #ifdef CONFIG_HOST_TASK_SIZE
  19         *host_size_out = ROUND_4M(CONFIG_HOST_TASK_SIZE);
  20         *task_size_out = CONFIG_HOST_TASK_SIZE;
  21 #else
  22         *host_size_out = top;
  23         if (!skas_needs_stub)
  24                 *task_size_out = top;
  25         else *task_size_out = CONFIG_STUB_START & PGDIR_MASK;
  26 #endif
  27         return ((unsigned long) set_task_sizes_skas) & ~0xffffff;
  28 }