Rev 2170 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 756 | jermar | 1 | /* |
| 2071 | jermar | 2 | * Copyright (c) 2006 Jakub Jermar |
| 756 | jermar | 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 | |||
| 756 | jermar | 35 | #include <arch/mm/as.h> |
| 36 | #include <genarch/mm/as_pt.h> |
||
| 1730 | decky | 37 | #include <genarch/mm/asid_fifo.h> |
| 38 | #include <arch.h> |
||
| 756 | jermar | 39 | |
| 40 | /** Architecture dependent address space init. */ |
||
| 41 | void as_arch_init(void) |
||
| 42 | { |
||
| 43 | as_operations = &as_pt_operations; |
||
| 1730 | decky | 44 | asid_fifo_init(); |
| 756 | jermar | 45 | } |
| 1702 | cejka | 46 | |
| 1730 | decky | 47 | /** Install address space. |
| 48 | * |
||
| 49 | * Install ASID. |
||
| 50 | * |
||
| 51 | * @param as Address space structure. |
||
| 52 | * |
||
| 53 | */ |
||
| 54 | void as_install_arch(as_t *as) |
||
| 55 | { |
||
| 56 | asid_t asid; |
||
| 1780 | jermar | 57 | uint32_t sr; |
| 1730 | decky | 58 | |
| 59 | asid = as->asid; |
||
| 60 | |||
| 61 | /* Lower 2 GB, user and supervisor access */ |
||
| 62 | for (sr = 0; sr < 8; sr++) { |
||
| 63 | asm volatile ( |
||
| 64 | "mtsrin %0, %1\n" |
||
| 65 | : |
||
| 1733 | decky | 66 | : "r" ((0x6000 << 16) + (asid << 4) + sr), "r" (sr << 28) |
| 1730 | decky | 67 | ); |
| 68 | } |
||
| 69 | |||
| 70 | /* Upper 2 GB, only supervisor access */ |
||
| 71 | for (sr = 8; sr < 16; sr++) { |
||
| 72 | asm volatile ( |
||
| 73 | "mtsrin %0, %1\n" |
||
| 74 | : |
||
| 1733 | decky | 75 | : "r" ((0x4000 << 16) + (asid << 4) + sr), "r" (sr << 28) |
| 1730 | decky | 76 | ); |
| 77 | } |
||
| 78 | } |
||
| 79 | |||
| 1726 | decky | 80 | /** @} |
| 1702 | cejka | 81 | */ |