Rev 3908 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 162 | decky | 1 | /* |
| 2071 | jermar | 2 | * Copyright (c) 2005 Martin Decky |
| 162 | decky | 3 | * All rights reserved. |
| 4 | * |
||
| 5 | * Redistribution and use in source and binary forms, with or without |
||
| 6 | * modification, are permitted provided that the following conditions |
||
| 7 | * are met: |
||
| 8 | * |
||
| 9 | * - Redistributions of source code must retain the above copyright |
||
| 10 | * notice, this list of conditions and the following disclaimer. |
||
| 11 | * - Redistributions in binary form must reproduce the above copyright |
||
| 12 | * notice, this list of conditions and the following disclaimer in the |
||
| 13 | * documentation and/or other materials provided with the distribution. |
||
| 14 | * - The name of the author may not be used to endorse or promote products |
||
| 15 | * derived from this software without specific prior written permission. |
||
| 16 | * |
||
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
||
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
||
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
||
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
| 27 | */ |
||
| 28 | |||
| 1726 | decky | 29 | /** @addtogroup ppc32mm |
| 1702 | cejka | 30 | * @{ |
| 31 | */ |
||
| 32 | /** @file |
||
| 33 | */ |
||
| 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> |
| 3940 | decky | 40 | #include <ddi/ddi.h> |
| 162 | decky | 41 | |
| 3940 | decky | 42 | /** Physical memory area for devices. */ |
| 43 | static parea_t dev_area; |
||
| 44 | |||
| 162 | decky | 45 | void page_arch_init(void) |
| 46 | { |
||
| 1726 | decky | 47 | if (config.cpu_active == 1) |
| 1374 | decky | 48 | page_mapping_operations = &pt_mapping_operations; |
| 162 | decky | 49 | } |
| 1383 | decky | 50 | |
| 51 | |||
| 1780 | jermar | 52 | uintptr_t hw_map(uintptr_t physaddr, size_t size) |
| 1383 | decky | 53 | { |
| 3193 | jermar | 54 | if (last_frame + ALIGN_UP(size, PAGE_SIZE) > |
| 55 | KA2PA(KERNEL_ADDRESS_SPACE_END_ARCH)) |
||
| 3790 | svoboda | 56 | panic("Unable to map physical memory %p (%" PRIs " bytes).", |
| 3193 | jermar | 57 | physaddr, size) |
| 1383 | decky | 58 | |
| 1780 | jermar | 59 | uintptr_t virtaddr = PA2KA(last_frame); |
| 1383 | decky | 60 | pfn_t i; |
| 61 | for (i = 0; i < ADDR2PFN(ALIGN_UP(size, PAGE_SIZE)); i++) |
||
| 3193 | jermar | 62 | page_mapping_insert(AS_KERNEL, virtaddr + PFN2ADDR(i), |
| 63 | physaddr + PFN2ADDR(i), PAGE_NOT_CACHEABLE | PAGE_WRITE); |
||
| 1383 | decky | 64 | |
| 65 | last_frame = ALIGN_UP(last_frame + size, FRAME_SIZE); |
||
| 66 | |||
| 67 | return virtaddr; |
||
| 68 | } |
||
| 1702 | cejka | 69 | |
| 3940 | decky | 70 | void hw_area(void) |
| 3908 | decky | 71 | { |
| 3940 | decky | 72 | dev_area.pbase = end_frame; |
| 73 | dev_area.frames = SIZE2FRAMES(0xffffffff - end_frame); |
||
| 74 | ddi_parea_register(&dev_area); |
||
| 3908 | decky | 75 | } |
| 76 | |||
| 1726 | decky | 77 | /** @} |
| 1702 | cejka | 78 | */ |