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| Rev | Author | Line No. | Line |
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| 426 | jermar | 1 | /* |
| 2071 | jermar | 2 | * Copyright (c) 2005 Jakub Jermar |
| 426 | jermar | 3 | * All rights reserved. |
| 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 | |||
| 3940 | decky | 29 | /** @addtogroup sparc64mm |
| 1702 | cejka | 30 | * @{ |
| 31 | */ |
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| 32 | /** @file |
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| 33 | */ |
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| 34 | |||
| 426 | jermar | 35 | #include <arch/mm/page.h> |
| 1382 | decky | 36 | #include <arch/mm/tlb.h> |
| 684 | jermar | 37 | #include <genarch/mm/page_ht.h> |
| 1382 | decky | 38 | #include <mm/frame.h> |
| 1793 | jermar | 39 | #include <arch/mm/frame.h> |
| 1382 | decky | 40 | #include <bitops.h> |
| 1410 | jermar | 41 | #include <debug.h> |
| 1793 | jermar | 42 | #include <align.h> |
| 1903 | jermar | 43 | #include <config.h> |
| 426 | jermar | 44 | |
| 1903 | jermar | 45 | /** Perform sparc64 specific initialization of paging. */ |
| 426 | jermar | 46 | void page_arch_init(void) |
| 47 | { |
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| 1903 | jermar | 48 | if (config.cpu_active == 1) { |
| 49 | page_mapping_operations = &ht_mapping_operations; |
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| 50 | } |
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| 426 | jermar | 51 | } |
| 1382 | decky | 52 | |
| 1841 | jermar | 53 | /** Map memory-mapped device into virtual memory. |
| 54 | * |
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| 2048 | jermar | 55 | * So far, only DTLB is used to map devices into memory. Chances are that there |
| 56 | * will be only a limited amount of devices that the kernel itself needs to |
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| 57 | * lock in DTLB. |
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| 1841 | jermar | 58 | * |
| 2048 | jermar | 59 | * @param physaddr Physical address of the page where the device is located. |
| 60 | * Must be at least page-aligned. |
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| 61 | * @param size Size of the device's registers. Must not exceed 4M and must |
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| 62 | * include extra space caused by the alignment. |
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| 1841 | jermar | 63 | * |
| 2048 | jermar | 64 | * @return Virtual address of the page where the device is mapped. |
| 1841 | jermar | 65 | */ |
| 1780 | jermar | 66 | uintptr_t hw_map(uintptr_t physaddr, size_t size) |
| 1382 | decky | 67 | { |
| 4138 | jermar | 68 | return PA2KA(physaddr); |
| 1382 | decky | 69 | } |
| 1702 | cejka | 70 | |
| 1793 | jermar | 71 | /** @} |
| 1702 | cejka | 72 | */ |