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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 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 |