HelenOS Kernel (sparc64): kernel/arch/sparc64/include/trap/mmu.h Source File

00001 /*
00002  * Copyright (C) 2006 Jakub Jermar
00003  * All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions
00007  * are met:
00008  *
00009  * - Redistributions of source code must retain the above copyright
00010  *   notice, this list of conditions and the following disclaimer.
00011  * - Redistributions in binary form must reproduce the above copyright
00012  *   notice, this list of conditions and the following disclaimer in the
00013  *   documentation and/or other materials provided with the distribution.
00014  * - The name of the author may not be used to endorse or promote products
00015  *   derived from this software without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
00018  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00019  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
00020  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
00021  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
00022  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
00023  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
00024  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00025  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
00026  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00027  */
00028 
00037 #ifndef __sparc64_MMU_TRAP_H__
00038 #define __sparc64_MMU_TRAP_H__
00039 
00040 #include <arch/stack.h>
00041 
00042 #define TT_FAST_INSTRUCTION_ACCESS_MMU_MISS     0x64
00043 #define TT_FAST_DATA_ACCESS_MMU_MISS            0x68
00044 #define TT_FAST_DATA_ACCESS_PROTECTION          0x6c
00045 
00046 #define FAST_MMU_HANDLER_SIZE                   128
00047 
00048 #ifdef __ASM__
00049 .macro FAST_INSTRUCTION_ACCESS_MMU_MISS_HANDLER
00050         save %sp, -STACK_WINDOW_SAVE_AREA_SIZE, %sp
00051         call fast_instruction_access_mmu_miss
00052         nop
00053         restore
00054         retry   
00055 .endm
00056 
00057 .macro FAST_DATA_ACCESS_MMU_MISS_HANDLER
00058         save %sp, -STACK_WINDOW_SAVE_AREA_SIZE, %sp
00059         call fast_data_access_mmu_miss
00060         nop
00061         restore
00062         retry
00063 .endm
00064 
00065 .macro FAST_DATA_ACCESS_PROTECTION_HANDLER
00066         save %sp, -STACK_WINDOW_SAVE_AREA_SIZE, %sp
00067         call fast_data_access_protection
00068         nop
00069         restore
00070         retry
00071 .endm
00072 #endif /* __ASM__ */
00073 
00074 #endif
00075