lib/ppcmmu/mmutest.c

   1 #include "ppcmmu/mmu.h"
   2 #include "ppcmmu/mmuutil.h"
   3 #include "mmuobject.h"
   4
   5 int mmunitest()
   6 {
   7     int ret;
   8     int (*fun)(int ret) = (void *)0x80000000;
   9     ppc_map_info_t info = { 0 };
  10     volatile int oldmsr, msr = 0x2030;
  11     __asm__("mfmsr 0\n\tstw 0,0(%0)" : : "r" (&oldmsr));
  12     mmusetvsid(8, 9, 0);
  13     info.flags = MMU_ALL_RW;
  14     info.proc = 0;
  15     info.addr = (vaddr_t)fun;
  16     mmuaddpage(&info, 1);
  17     __asm__("mtmsr %0" : : "r" (msr));
  18     __asm__("mtsdr1 %0" : : "r" (HTABORG));
  19     *((int *)fun) = 0x4e800020;
  20     ret = fun(3);
  21     __asm__("mtmsr %0" : : "r" (oldmsr));
  22     return ret != 3;
  23 }