mmu.h

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/*
 * Copyright (c) 2005 Jakub Jermar
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef KERN_sparc64_sun4u_MMU_H_
#define KERN_sparc64_sun4u_MMU_H_

#if defined(US)
/* LSU Control Register ASI. */
#define ASI_LSU_CONTROL_REG     0x45    
#endif

/* I-MMU ASIs. */
#define ASI_IMMU            0x50
#define ASI_IMMU_TSB_8KB_PTR_REG    0x51    
#define ASI_IMMU_TSB_64KB_PTR_REG   0x52
#define ASI_ITLB_DATA_IN_REG        0x54
#define ASI_ITLB_DATA_ACCESS_REG    0x55
#define ASI_ITLB_TAG_READ_REG       0x56
#define ASI_IMMU_DEMAP          0x57

/* Virtual Addresses within ASI_IMMU. */
#define VA_IMMU_TSB_TAG_TARGET      0x0 
#define VA_IMMU_SFSR            0x18    
#define VA_IMMU_TSB_BASE        0x28    
#define VA_IMMU_TAG_ACCESS      0x30    
#if defined (US3)
#define VA_IMMU_PRIMARY_EXTENSION   0x48    
#define VA_IMMU_NUCLEUS_EXTENSION   0x58    
#endif


/* D-MMU ASIs. */
#define ASI_DMMU            0x58
#define ASI_DMMU_TSB_8KB_PTR_REG    0x59    
#define ASI_DMMU_TSB_64KB_PTR_REG   0x5a
#define ASI_DMMU_TSB_DIRECT_PTR_REG 0x5b
#define ASI_DTLB_DATA_IN_REG        0x5c
#define ASI_DTLB_DATA_ACCESS_REG    0x5d
#define ASI_DTLB_TAG_READ_REG       0x5e
#define ASI_DMMU_DEMAP          0x5f

/* Virtual Addresses within ASI_DMMU. */
#define VA_DMMU_TSB_TAG_TARGET      0x0 
#define VA_PRIMARY_CONTEXT_REG      0x8 
#define VA_SECONDARY_CONTEXT_REG    0x10    
#define VA_DMMU_SFSR            0x18    
#define VA_DMMU_SFAR            0x20    
#define VA_DMMU_TSB_BASE        0x28    
#define VA_DMMU_TAG_ACCESS      0x30    
#define VA_DMMU_VA_WATCHPOINT_REG   0x38    
#define VA_DMMU_PA_WATCHPOINT_REG   0x40    
#if defined (US3)
#define VA_DMMU_PRIMARY_EXTENSION   0x48    
#define VA_DMMU_SECONDARY_EXTENSION 0x50    
#define VA_DMMU_NUCLEUS_EXTENSION   0x58    
#endif

#ifndef __ASM__

#include <arch/asm.h>
#include <arch/barrier.h>
#include <arch/types.h>

#if defined(US)

typedef union {
    uint64_t value;
    struct {
        unsigned : 23;
        unsigned pm : 8;
        unsigned vm : 8;
        unsigned pr : 1;
        unsigned pw : 1;
        unsigned vr : 1;
        unsigned vw : 1;
        unsigned : 1;
        unsigned fm : 16;   
        unsigned dm : 1;    
        unsigned im : 1;    
        unsigned dc : 1;    
        unsigned ic : 1;    
    } __attribute__ ((packed));
} lsu_cr_reg_t;
#endif /* US */

#endif /* !def __ASM__ */

#endif