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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.

 */

/** @addtogroup ia64   

 * @{

 */

/** @file

 */

#ifndef KERN_ia64_REGISTER_H_

#define KERN_ia64_REGISTER_H_

#define CR_IVR_MASK 0xf

#define PSR_IC_MASK 0x2000

#define PSR_I_MASK  0x4000

#define PSR_PK_MASK 0x8000

#define PSR_DT_MASK (1 << 17)

#define PSR_RT_MASK (1 << 27)

#define PSR_DFL_MASK    (1 << 18)

#define PSR_DFH_MASK    (1 << 19)

#define PSR_IT_MASK 0x0000001000000000

#define PSR_CPL_SHIFT       32

#define PSR_CPL_MASK_SHIFTED    3

#define PFM_MASK        (~0x3fffffffff)

#define RSC_MODE_MASK   3

#define RSC_PL_MASK 12

/** Application registers. */

#define AR_KR0      0

#define AR_KR1      1

#define AR_KR2      2

#define AR_KR3      3

#define AR_KR4      4

#define AR_KR5      5

#define AR_KR6      6

#define AR_KR7      7

/* AR 8-15 reserved */

#define AR_RSC      16

#define AR_BSP      17

#define AR_BSPSTORE 18

#define AR_RNAT     19

/* AR 20 reserved */

#define AR_FCR      21

/* AR 22-23 reserved */

#define AR_EFLAG    24

#define AR_CSD      25

#define AR_SSD      26

#define AR_CFLG     27

#define AR_FSR      28

#define AR_FIR      29

#define AR_FDR      30

/* AR 31 reserved */

#define AR_CCV      32

/* AR 33-35 reserved */

#define AR_UNAT     36

/* AR 37-39 reserved */

#define AR_FPSR     40

/* AR 41-43 reserved */

#define AR_ITC      44

/* AR 45-47 reserved */

/* AR 48-63 ignored */

#define AR_PFS      64

#define AR_LC       65

#define AR_EC       66

/* AR 67-111 reserved */

/* AR 112-127 ignored */

/** Control registers. */

#define CR_DCR      0

#define CR_ITM      1

#define CR_IVA      2

/* CR3-CR7 reserved */

#define CR_PTA      8

/* CR9-CR15 reserved */

#define CR_IPSR     16

#define CR_ISR      17

/* CR18 reserved */

#define CR_IIP      19

#define CR_IFA      20

#define CR_ITIR     21

#define CR_IIPA     22

#define CR_IFS      23

#define CR_IIM      24

#define CR_IHA      25

/* CR26-CR63 reserved */

#define CR_LID      64

#define CR_IVR      65

#define CR_TPR      66

#define CR_EOI      67

#define CR_IRR0     68

#define CR_IRR1     69

#define CR_IRR2     70

#define CR_IRR3     71

#define CR_ITV      72

#define CR_PMV      73

#define CR_CMCV     74

/* CR75-CR79 reserved */

#define CR_LRR0     80

#define CR_LRR1     81

/* CR82-CR127 reserved */

#ifndef __ASM__

#include <arch/types.h>

/** Processor Status Register. */

union psr {

    uint64_t value;

    struct {

        unsigned : 1;

        unsigned be : 1;    /**< Big-Endian data accesses. */

        unsigned up : 1;    /**< User Performance monitor enable. */

        unsigned ac : 1;    /**< Alignment Check. */

        unsigned mfl : 1;   /**< Lower floating-point register written. */

        unsigned mfh : 1;   /**< Upper floating-point register written. */

        unsigned : 7;

        unsigned ic : 1;    /**< Interruption Collection. */

        unsigned i : 1;     /**< Interrupt Bit. */

        unsigned pk : 1;    /**< Protection Key enable. */

        unsigned : 1;

        unsigned dt : 1;    /**< Data address Translation. */

        unsigned dfl : 1;   /**< Disabled Floating-point Low register set. */

        unsigned dfh : 1;   /**< Disabled Floating-point High register set. */

        unsigned sp : 1;    /**< Secure Performance monitors. */

        unsigned pp : 1;    /**< Privileged Performance monitor enable. */

        unsigned di : 1;    /**< Disable Instruction set transition. */

        unsigned si : 1;    /**< Secure Interval timer. */

        unsigned db : 1;    /**< Debug Breakpoint fault. */

        unsigned lp : 1;    /**< Lower Privilege transfer trap. */

        unsigned tb : 1;    /**< Taken Branch trap. */

        unsigned rt : 1;    /**< Register Stack Translation. */

        unsigned : 4;

        unsigned cpl : 2;   /**< Current Privilege Level. */

        unsigned is : 1;    /**< Instruction Set. */

        unsigned mc : 1;    /**< Machine Check abort mask. */

        unsigned it : 1;    /**< Instruction address Translation. */

        unsigned id : 1;    /**< Instruction Debug fault disable. */

        unsigned da : 1;    /**< Disable Data Access and Dirty-bit faults. */

        unsigned dd : 1;    /**< Data Debug fault disable. */

        unsigned ss : 1;    /**< Single Step enable. */

        unsigned ri : 2;    /**< Restart Instruction. */

        unsigned ed : 1;    /**< Exception Deferral. */

        unsigned bn : 1;    /**< Register Bank. */

        unsigned ia : 1;    /**< Disable Instruction Access-bit faults. */

    } __attribute__ ((packed));

};

typedef union psr psr_t;

/** Register Stack Configuration Register */

union rsc {

    uint64_t value;

    struct {

        unsigned mode : 2;

        unsigned pl : 2;    /**< Privilege Level. */

        unsigned be : 1;    /**< Big-endian. */

        unsigned : 11;

        unsigned loadrs : 14;

    } __attribute__ ((packed));

};

typedef union rsc rsc_t;

/** External Interrupt Vector Register */

union cr_ivr {

    uint8_t  vector;

    uint64_t value;

};

typedef union cr_ivr cr_ivr_t;

/** Task Priority Register */

union cr_tpr {

    struct {

        unsigned : 4;

        unsigned mic: 4;        /**< Mask Interrupt Class. */

        unsigned : 8;

        unsigned mmi: 1;        /**< Mask Maskable Interrupts. */

    } __attribute__ ((packed));

    uint64_t value;

};

typedef union cr_tpr cr_tpr_t;

/** Interval Timer Vector */

union cr_itv {

    struct {

        unsigned vector : 8;

        unsigned : 4;

        unsigned : 1;

        unsigned : 3;

        unsigned m : 1;         /**< Mask. */

    } __attribute__ ((packed));

    uint64_t value;

};

typedef union cr_itv cr_itv_t;

/** Interruption Status Register */

union cr_isr {

    struct {

        union {

            /** General Exception code field structuring. */

            struct {

                unsigned ge_na : 4;

                unsigned ge_code : 4;

            } __attribute__ ((packed));

            uint16_t code;

        };

        uint8_t vector;

        unsigned : 8;

        unsigned x : 1;         /**< Execute exception. */

        unsigned w : 1;         /**< Write exception. */

        unsigned r : 1;         /**< Read exception. */

        unsigned na : 1;        /**< Non-access exception. */

        unsigned sp : 1;        /**< Speculative load exception. */

        unsigned rs : 1;        /**< Register stack. */

        unsigned ir : 1;        /**< Incomplete Register frame. */

        unsigned ni : 1;        /**< Nested Interruption. */

        unsigned so : 1;        /**< IA-32 Supervisor Override. */

        unsigned ei : 2;        /**< Excepting Instruction. */

        unsigned ed : 1;        /**< Exception Deferral. */

        unsigned : 20;

    } __attribute__ ((packed));

    uint64_t value;

};

typedef union cr_isr cr_isr_t;

/** CPUID Register 3 */

union cpuid3 {

    struct {

        uint8_t number;

        uint8_t revision;

        uint8_t model;

        uint8_t family;

        uint8_t archrev;

    } __attribute__ ((packed));

    uint64_t value;

};

typedef union cpuid3 cpuid3_t;

#endif /* !__ASM__ */

#endif

/** @}

 */