Rev 3770 | Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 3743 | rimsky | 1 | /* |
| 2 | * Copyright (c) 2006 Jakub Jermar |
||
| 3 | * Copyright (c) 2008 Pavel Rimsky |
||
| 4 | * All rights reserved. |
||
| 5 | * |
||
| 6 | * Redistribution and use in source and binary forms, with or without |
||
| 7 | * modification, are permitted provided that the following conditions |
||
| 8 | * are met: |
||
| 9 | * |
||
| 10 | * - Redistributions of source code must retain the above copyright |
||
| 11 | * notice, this list of conditions and the following disclaimer. |
||
| 12 | * - Redistributions in binary form must reproduce the above copyright |
||
| 13 | * notice, this list of conditions and the following disclaimer in the |
||
| 14 | * documentation and/or other materials provided with the distribution. |
||
| 15 | * - The name of the author may not be used to endorse or promote products |
||
| 16 | * derived from this software without specific prior written permission. |
||
| 17 | * |
||
| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
||
| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
||
| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||
| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||
| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||
| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
||
| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
| 28 | */ |
||
| 29 | |||
| 30 | /** @addtogroup sparc64interrupt |
||
| 31 | * @{ |
||
| 32 | */ |
||
| 33 | /** |
||
| 34 | * @file |
||
| 35 | * @brief This file contains fast MMU trap handlers. |
||
| 36 | */ |
||
| 37 | |||
| 38 | #ifndef KERN_sparc64_sun4v_MMU_TRAP_H_ |
||
| 39 | #define KERN_sparc64_sun4v_MMU_TRAP_H_ |
||
| 40 | |||
| 41 | #include <arch/stack.h> |
||
| 42 | #include <arch/sun4v/regdef.h> |
||
| 43 | #include <arch/mm/tlb.h> |
||
| 44 | #include <arch/mm/sun4v/mmu.h> |
||
| 45 | #include <arch/mm/sun4v/tte.h> |
||
| 46 | #include <arch/trap/regwin.h> |
||
| 47 | |||
| 48 | #ifdef CONFIG_TSB |
||
| 49 | #include <arch/mm/tsb.h> |
||
| 50 | #endif |
||
| 51 | |||
| 52 | #define TT_FAST_INSTRUCTION_ACCESS_MMU_MISS 0x64 |
||
| 53 | #define TT_FAST_DATA_ACCESS_MMU_MISS 0x68 |
||
| 54 | #define TT_FAST_DATA_ACCESS_PROTECTION 0x6c |
||
| 55 | |||
| 56 | #define FAST_MMU_HANDLER_SIZE 128 |
||
| 57 | |||
| 58 | #ifdef __ASM__ |
||
| 59 | |||
| 60 | .macro FAST_INSTRUCTION_ACCESS_MMU_MISS_HANDLER |
||
| 61 | .endm |
||
| 62 | |||
| 63 | /* |
||
| 64 | * So far it is here only to process the trap which occurs when the kernel |
||
| 65 | * needs to access the bootinfo structure, which is placed in the bootloader |
||
| 66 | * memory (i.e. before address 0x400000). |
||
| 67 | */ |
||
| 68 | .macro FAST_DATA_ACCESS_MMU_MISS_HANDLER tl |
||
| 69 | set 0x8000, %o0 |
||
| 70 | set 0x0, %o1 |
||
| 71 | setx 0x80000000804087c3, %g1, %o2 |
||
| 72 | set 0x3, %o3 |
||
| 73 | ta 0x83 |
||
| 74 | retry |
||
| 75 | .endm |
||
| 76 | |||
| 77 | .macro FAST_DATA_ACCESS_PROTECTION_HANDLER tl |
||
| 78 | .endm |
||
| 79 | |||
| 80 | #endif /* __ASM__ */ |
||
| 81 | |||
| 82 | #endif |
||
| 83 | |||
| 84 | /** @} |
||
| 85 | */ |