| [f5df72d] | 1 | /*
|
|---|
| 2 | * Copyright (C) 2006 Jakub 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 |
|
|---|
| 29 | /**
|
|---|
| 30 | * This file contains fast MMU trap handlers.
|
|---|
| 31 | */
|
|---|
| 32 |
|
|---|
| 33 | #ifndef __sparc64_MMU_TRAP_H__
|
|---|
| 34 | #define __sparc64_MMU_TRAP_H__
|
|---|
| 35 |
|
|---|
| [7cb53f62] | 36 | #include <arch/stack.h>
|
|---|
| 37 |
|
|---|
| [f5df72d] | 38 | #define TT_FAST_INSTRUCTION_ACCESS_MMU_MISS 0x64
|
|---|
| 39 | #define TT_FAST_DATA_ACCESS_MMU_MISS 0x68
|
|---|
| 40 | #define TT_FAST_DATA_ACCESS_PROTECTION 0x6c
|
|---|
| 41 |
|
|---|
| 42 | #define FAST_MMU_HANDLER_SIZE 128
|
|---|
| 43 |
|
|---|
| [778c1e1] | 44 | #ifdef __ASM__
|
|---|
| [f5df72d] | 45 | .macro FAST_INSTRUCTION_ACCESS_MMU_MISS_HANDLER
|
|---|
| [7cb53f62] | 46 | save %sp, -STACK_WINDOW_SAVE_AREA_SIZE, %sp
|
|---|
| [f5df72d] | 47 | call fast_instruction_access_mmu_miss
|
|---|
| 48 | nop
|
|---|
| [7cb53f62] | 49 | restore
|
|---|
| [f5df72d] | 50 | retry
|
|---|
| 51 | .endm
|
|---|
| 52 |
|
|---|
| 53 | .macro FAST_DATA_ACCESS_MMU_MISS_HANDLER
|
|---|
| [7cb53f62] | 54 | save %sp, -STACK_WINDOW_SAVE_AREA_SIZE, %sp
|
|---|
| [f5df72d] | 55 | call fast_data_access_mmu_miss
|
|---|
| 56 | nop
|
|---|
| [7cb53f62] | 57 | restore
|
|---|
| [f5df72d] | 58 | retry
|
|---|
| 59 | .endm
|
|---|
| 60 |
|
|---|
| 61 | .macro FAST_DATA_ACCESS_PROTECTION_HANDLER
|
|---|
| [7cb53f62] | 62 | save %sp, -STACK_WINDOW_SAVE_AREA_SIZE, %sp
|
|---|
| [f5df72d] | 63 | call fast_data_access_protection
|
|---|
| 64 | nop
|
|---|
| [7cb53f62] | 65 | restore
|
|---|
| [f5df72d] | 66 | retry
|
|---|
| 67 | .endm
|
|---|
| [778c1e1] | 68 | #endif /* __ASM__ */
|
|---|
| [f5df72d] | 69 |
|
|---|
| 70 | #endif
|
|---|
