source: rtems/bsps/powerpc/mvme5500/start/pgtbl_activate.c @ 9964895

/*
 * Default activation of the page tables. This is a weak
 * alias, so applications may easily override this
 * default activation procedure.
 */

/* Author: Till Straumann, <strauman@slac.stanford.edu>, 4/2002
 * Kate Feng <feng1@bnl.gov> ported it to MVME5500, 4/2004
 */

#include <rtems.h>
#include <libcpu/pte121.h>
#include <libcpu/bat.h>

static void
__BSP_default_pgtbl_activate(Triv121PgTbl pt)
{
  if (!pt)
    return;

  /* switch the text/ro sements to RO only after
   * initializing the interrupts because the irq_mng
   * installs some code...
   *
   * activate the page table; it is still masked by the
   * DBAT0, however
   */
  triv121PgTblActivate(pt);

  /* finally, switch off DBAT0 & DBAT1 */
  setdbat(0,0,0,0,0);
  setdbat(1,0,0,0,0);  /* <skf> */
  /* At this point, DBAT0 is available for other use... */
}

void BSP_pgtbl_activate(Triv121PgTbl)
  __attribute__ (( weak, alias("__BSP_default_pgtbl_activate") ));