Rev 1730 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 162 | decky | 1 | /* |
| 2 | * Copyright (C) 2005 Martin Decky |
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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 | |||
| 1726 | decky | 29 | /** @addtogroup ppc32mm |
| 1702 | cejka | 30 | * @{ |
| 31 | */ |
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| 32 | /** @file |
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| 33 | */ |
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| 34 | |||
| 684 | jermar | 35 | #include <genarch/mm/page_pt.h> |
| 162 | decky | 36 | #include <mm/frame.h> |
| 1374 | decky | 37 | #include <mm/as.h> |
| 1383 | decky | 38 | #include <align.h> |
| 1374 | decky | 39 | #include <config.h> |
| 162 | decky | 40 | |
| 41 | void page_arch_init(void) |
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| 42 | { |
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| 1726 | decky | 43 | if (config.cpu_active == 1) |
| 1374 | decky | 44 | page_mapping_operations = &pt_mapping_operations; |
| 162 | decky | 45 | } |
| 1383 | decky | 46 | |
| 47 | |||
| 1780 | jermar | 48 | uintptr_t hw_map(uintptr_t physaddr, size_t size) |
| 1383 | decky | 49 | { |
| 50 | if (last_frame + ALIGN_UP(size, PAGE_SIZE) > KA2PA(KERNEL_ADDRESS_SPACE_END_ARCH)) |
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| 51 | panic("Unable to map physical memory %p (%d bytes)", physaddr, size) |
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| 52 | |||
| 1780 | jermar | 53 | uintptr_t virtaddr = PA2KA(last_frame); |
| 1383 | decky | 54 | pfn_t i; |
| 55 | for (i = 0; i < ADDR2PFN(ALIGN_UP(size, PAGE_SIZE)); i++) |
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| 56 | page_mapping_insert(AS_KERNEL, virtaddr + PFN2ADDR(i), physaddr + PFN2ADDR(i), PAGE_NOT_CACHEABLE); |
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| 57 | |||
| 58 | last_frame = ALIGN_UP(last_frame + size, FRAME_SIZE); |
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| 59 | |||
| 60 | return virtaddr; |
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| 61 | } |
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| 1702 | cejka | 62 | |
| 1726 | decky | 63 | /** @} |
| 1702 | cejka | 64 | */ |