1 | #include <rtems.h> |
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2 | #include <libcpu/pte121.h> |
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3 | #include <libcpu/bat.h> |
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4 | |
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5 | /* Default activation of the page tables. This is a weak |
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6 | * alias, so applications may easily override this |
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7 | * default activation procedure. |
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8 | */ |
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9 | |
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10 | /* |
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11 | * Authorship |
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12 | * ---------- |
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13 | * This software was created by |
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14 | * Till Straumann <strauman@slac.stanford.edu>, 4/2002, |
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15 | * Stanford Linear Accelerator Center, Stanford University. |
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16 | * |
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17 | * Acknowledgement of sponsorship |
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18 | * ------------------------------ |
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19 | * This software was produced by |
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20 | * the Stanford Linear Accelerator Center, Stanford University, |
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21 | * under Contract DE-AC03-76SFO0515 with the Department of Energy. |
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22 | * |
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23 | * Government disclaimer of liability |
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24 | * ---------------------------------- |
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25 | * Neither the United States nor the United States Department of Energy, |
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26 | * nor any of their employees, makes any warranty, express or implied, or |
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27 | * assumes any legal liability or responsibility for the accuracy, |
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28 | * completeness, or usefulness of any data, apparatus, product, or process |
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29 | * disclosed, or represents that its use would not infringe privately owned |
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30 | * rights. |
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31 | * |
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32 | * Stanford disclaimer of liability |
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33 | * -------------------------------- |
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34 | * Stanford University makes no representations or warranties, express or |
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35 | * implied, nor assumes any liability for the use of this software. |
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36 | * |
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37 | * Stanford disclaimer of copyright |
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38 | * -------------------------------- |
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39 | * Stanford University, owner of the copyright, hereby disclaims its |
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40 | * copyright and all other rights in this software. Hence, anyone may |
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41 | * freely use it for any purpose without restriction. |
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42 | * |
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43 | * Maintenance of notices |
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44 | * ---------------------- |
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45 | * In the interest of clarity regarding the origin and status of this |
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46 | * SLAC software, this and all the preceding Stanford University notices |
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47 | * are to remain affixed to any copy or derivative of this software made |
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48 | * or distributed by the recipient and are to be affixed to any copy of |
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49 | * software made or distributed by the recipient that contains a copy or |
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50 | * derivative of this software. |
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51 | * |
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52 | * ------------------ SLAC Software Notices, Set 4 OTT.002a, 2004 FEB 03 |
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53 | */ |
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54 | |
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55 | void __BSP_default_pgtbl_activate(Triv121PgTbl pt); |
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56 | void |
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57 | BSP_pgtbl_activate(Triv121PgTbl) |
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58 | __attribute__ (( weak, alias("__BSP_default_pgtbl_activate") )); |
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59 | |
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60 | void |
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61 | __BSP_default_pgtbl_activate(Triv121PgTbl pt) |
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62 | { |
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63 | if (!pt) return; |
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64 | |
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65 | /* switch the text/ro sements to RO only after |
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66 | * initializing the interrupts because the irq_mng |
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67 | * installs some code... |
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68 | * |
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69 | * activate the page table; it is still masked by the |
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70 | * DBAT0, however |
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71 | */ |
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72 | triv121PgTblActivate(pt); |
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73 | |
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74 | /* finally, switch off DBAT0 */ |
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75 | setdbat(0,0,0,0,0); |
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76 | /* At this point, DBAT0 is available for other use... */ |
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77 | } |
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