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391 | jermar | 1 | /* |
2 | * Copyright (C) 2005 Jakub Jermar |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
703 | jermar | 29 | #include <arch/mm/as.h> |
756 | jermar | 30 | #include <genarch/mm/as_pt.h> |
830 | jermar | 31 | #include <genarch/mm/asid_fifo.h> |
391 | jermar | 32 | #include <arch/mm/tlb.h> |
703 | jermar | 33 | #include <mm/tlb.h> |
34 | #include <mm/as.h> |
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391 | jermar | 35 | #include <arch/cp0.h> |
36 | #include <arch.h> |
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37 | |||
756 | jermar | 38 | /** Architecture dependent address space init. */ |
39 | void as_arch_init(void) |
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40 | { |
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41 | as_operations = &as_pt_operations; |
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830 | jermar | 42 | asid_fifo_init(); |
756 | jermar | 43 | } |
44 | |||
703 | jermar | 45 | /** Install address space. |
391 | jermar | 46 | * |
727 | jermar | 47 | * Install ASID. |
391 | jermar | 48 | * |
703 | jermar | 49 | * @param as Address space structure. |
391 | jermar | 50 | */ |
703 | jermar | 51 | void as_install_arch(as_t *as) |
391 | jermar | 52 | { |
396 | jermar | 53 | entry_hi_t hi; |
413 | jermar | 54 | ipl_t ipl; |
703 | jermar | 55 | |
56 | /* |
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57 | * Install ASID. |
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58 | */ |
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396 | jermar | 59 | hi.value = cp0_entry_hi_read(); |
391 | jermar | 60 | |
413 | jermar | 61 | ipl = interrupts_disable(); |
703 | jermar | 62 | spinlock_lock(&as->lock); |
63 | hi.asid = as->asid; |
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397 | jermar | 64 | cp0_entry_hi_write(hi.value); |
703 | jermar | 65 | spinlock_unlock(&as->lock); |
413 | jermar | 66 | interrupts_restore(ipl); |
391 | jermar | 67 | } |
756 | jermar | 68 |