space.h

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/*
 *                               POK header
 * 
 * The following file is a part of the POK project. Any modification should
 * made according to the POK licence. You CANNOT use this file or a part of
 * this file is this part of a file for your own project
 *
 * For more information on the POK licence, please see our LICENCE FILE
 *
 * Please follow the coding guidelines described in doc/CODING_GUIDELINES
 *
 *                                      Copyright (c) 2007-2009 POK team 
 *
 * Created by julien on Thu Jan 15 23:34:13 2009 
 */

#ifndef __POK_SPARC_SPACE_H__
#define __POK_SPARC_SPACE_H__

#include <types.h>

#define MM_ET_INVALID 0x0 
#define MM_ET_PTD     0x1 
#define MM_ET_PTE     0x2 
#define MM_ACC_R      (0x0 << 2) 
#define MM_ACC_RW     (0x1 << 2) 
#define MM_ACC_RE     (0x2 << 2) 
#define MM_ACC_RWE    (0x3 << 2) 
#define MM_ACC_E      (0x4 << 2) 
#define MM_ACC_R_S_RW (0x5 << 2) 
#define MM_ACC_S_RE   (0x6 << 2) 
#define MM_ACC_S_RWE  (0x7 << 2) 
#define MM_CACHEABLE  (1 << 7)
#define MM_MODIFIED   (1 << 6)
#define MM_REFERENCED (1 << 5)

#define MM_LVL1_ENTRIES_NBR 256  
#define MM_LVL1_PAGE_SIZE (64 * 64 * 4 * 1024) 
#define mm_index1(addr) (((addr) >> 24) & 0xFF)

#define MM_LVL2_ENTRIES_NBR 64  
#define MM_LVL2_PAGE_SIZE (64 * 4 * 1024) 
#define mm_index2(addr) (((addr) >> 18) & 0x3F)

#define MM_LVL3_ENTRIES_NBR 64 
#define MM_LVL3_PAGE_SIZE (4 * 1024) 
#define mm_index3(addr) (((addr) >> 12) & 0x3F)

#define ASI_M_MMUREGS    0x19 /* not sparc v8 compliant */
#define MMU_CTRL_REG     0x00000000
#define MMU_CTXTBL_PTR   0x00000100
#define MMU_CTX_REG      0x00000200
#define MMU_FAULT_STATUS 0x00000300
#define MMU_FAULT_ADDR   0x00000400

#define LEON_CTX_NBR 256 
typedef uint32_t pte;
typedef uint32_t ptd;

void pok_arch_space_init (void);

#endif /* !__POK_PPC_SPACE_H__ */