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122 lines
3.1 KiB
C
122 lines
3.1 KiB
C
/*
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mini - a Free Software replacement for the Nintendo/BroadOn IOS.
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memory management, MMU, caches, and flushing
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Copyright (C) 2008, 2009 Hector Martin "marcan" <marcan@marcansoft.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, version 2.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __MEMORY_H__
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#define __MEMORY_H__
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#include "types.h"
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#define ALIGN_FORWARD(x,align) \
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((typeof(x))((((u32)(x)) + (align) - 1) & (~(align-1))))
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#define ALIGN_BACKWARD(x,align) \
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((typeof(x))(((u32)(x)) & (~(align-1))))
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enum AHBDEV {
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AHB_STARLET = 0, //or MEM2 or some controller or bus or ??
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AHB_1 = 1, //ppc or something else???
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AHB_NAND = 3,
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AHB_AES = 4,
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AHB_SHA1 = 5,
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AHB_SDHC = 9,
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};
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void dc_flushrange(const void *start, u32 size);
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void dc_invalidaterange(void *start, u32 size);
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void dc_flushall(void);
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void ic_invalidateall(void);
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void ahb_flush_from(enum AHBDEV dev);
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void ahb_flush_to(enum AHBDEV dev);
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void mem_protect(int enable, void *start, void *end);
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void mem_setswap(int enable);
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void mem_initialize(void);
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void mem_shutdown(void);
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u32 dma_addr(void *);
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static inline u32 get_cr(void)
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{
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u32 data;
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__asm__ volatile ( "mrc\tp15, 0, %0, c1, c0, 0" : "=r" (data) );
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return data;
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}
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static inline u32 get_ttbr(void)
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{
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u32 data;
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__asm__ volatile ( "mrc\tp15, 0, %0, c2, c0, 0" : "=r" (data) );
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return data;
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}
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static inline u32 get_dacr(void)
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{
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u32 data;
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__asm__ volatile ( "mrc\tp15, 0, %0, c3, c0, 0" : "=r" (data) );
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return data;
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}
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static inline void set_cr(u32 data)
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{
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__asm__ volatile ( "mcr\tp15, 0, %0, c1, c0, 0" :: "r" (data) );
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}
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static inline void set_ttbr(u32 data)
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{
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__asm__ volatile ( "mcr\tp15, 0, %0, c2, c0, 0" :: "r" (data) );
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}
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static inline void set_dacr(u32 data)
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{
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__asm__ volatile ( "mcr\tp15, 0, %0, c3, c0, 0" :: "r" (data) );
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}
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static inline u32 get_dfsr(void)
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{
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u32 data;
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__asm__ volatile ( "mrc\tp15, 0, %0, c5, c0, 0" : "=r" (data) );
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return data;
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}
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static inline u32 get_ifsr(void)
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{
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u32 data;
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__asm__ volatile ( "mrc\tp15, 0, %0, c5, c0, 1" : "=r" (data) );
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return data;
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}
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static inline u32 get_far(void)
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{
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u32 data;
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__asm__ volatile ( "mrc\tp15, 0, %0, c6, c0, 0" : "=r" (data) );
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return data;
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}
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void _ahb_flush_to(enum AHBDEV dev);
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static inline void dc_inval_block_fast(void *block)
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{
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__asm__ volatile ( "mcr\tp15, 0, %0, c7, c6, 1" :: "r" (block) );
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_ahb_flush_to(AHB_STARLET); //TODO: check if really needed and if not, remove
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}
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static inline void dc_flush_block_fast(void *block)
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{
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__asm__ volatile ( "mcr\tp15, 0, %0, c7, c10, 1" :: "r" (block) );
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__asm__ volatile ( "mcr\tp15, 0, %0, c7, c10, 4" :: "r" (0) );
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ahb_flush_from(AHB_1); //TODO: check if really needed and if not, remove
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}
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#endif
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