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| Rev | Author | Line No. | Line |
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| 2128 | jermar | 1 | /* |
| 2 | * Copyright (c) 2003-2004 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 | |||
| 29 | /** @addtogroup arm32mm |
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| 30 | * @{ |
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| 31 | */ |
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| 32 | /** @file |
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| 33 | */ |
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| 34 | |||
| 35 | #include <arch/mm/page.h> |
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| 36 | #include <genarch/mm/page_pt.h> |
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| 37 | #include <mm/page.h> |
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| 2182 | jancik | 38 | #include <align.h> |
| 39 | #include <config.h> |
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| 40 | #include "../aux_print/printf.h" |
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| 2128 | jermar | 41 | |
| 42 | void page_arch_init(void) |
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| 43 | { |
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| 2182 | jancik | 44 | aux_printf("page_arch_init\n"); |
| 45 | |||
| 46 | uintptr_t cur; |
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| 47 | int flags; |
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| 48 | |||
| 2128 | jermar | 49 | page_mapping_operations = &pt_mapping_operations; |
| 2182 | jancik | 50 | |
| 51 | flags = PAGE_CACHEABLE; |
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| 52 | const unsigned maxmem = ALIGN_DOWN(config.memory_size, FRAME_SIZE); |
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| 53 | |||
| 54 | for (cur = 0; cur < maxmem; cur += FRAME_SIZE) { |
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| 55 | page_mapping_insert(AS_KERNEL, PA2KA(cur), cur, flags); |
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| 56 | } |
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| 57 | //TODO set page fault routines |
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| 58 | // no problem no ... kernel doesn't do page faults |
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| 59 | |||
| 60 | |||
| 61 | asm volatile ( |
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| 62 | "ldr r0, =0x55555555 \n" |
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| 63 | "mrc p15, 0, r0, c3, c0, 0 \n" //set domain acces rights to client <==> take rights from page tables |
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| 64 | "mcr p15, 0, r0, c1, c0, 0 \n" // get current setting of system ... register 1 isn't only for memmory management |
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| 65 | "ldr r1, =0xFFFFFE8D \n" // mask to disable aligment checks, System, Rom bit disable |
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| 66 | "and r0, r0, r1 \n" |
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| 67 | "ldr r1, =0x00000001 \n" // mask to enable paging |
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| 68 | "orr r0, r0, r1 \n" |
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| 69 | "mrc p15, 0, r0, c1, c0, 0 \n" // store setting |
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| 70 | : |
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| 71 | : |
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| 72 | : "r0", "r1" |
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| 73 | ); |
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| 2128 | jermar | 74 | } |
| 75 | |||
| 76 | /** Map device into kernel space. */ |
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| 77 | uintptr_t hw_map(uintptr_t physaddr, size_t size) |
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| 78 | { |
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| 79 | /* TODO */ |
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| 80 | return NULL; |
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| 81 | } |
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| 82 | |||
| 83 | /** @} |
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| 84 | */ |
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| 2182 | jancik | 85 |