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Annotation of 42BSD/sys/vax/mem.h, revision 1.1

1.1     ! root        1: /*     mem.h   6.1     83/07/29        */
        !             2: 
        !             3: /*
        !             4:  * Memory controller registers
        !             5:  *
        !             6:  * The way in which the data is stored in these registers varies
        !             7:  * per cpu, so we define macros here to mask that.
        !             8:  */
        !             9: struct mcr {
        !            10:        int     mc_reg[3];
        !            11: };
        !            12: 
        !            13: /*
        !            14:  * Compute maximum possible number of memory controllers,
        !            15:  * for sizing of the mcraddr array.
        !            16:  */
        !            17: #if VAX780
        !            18: #define        MAXNMCR         4
        !            19: #else
        !            20: #define        MAXNMCR         1
        !            21: #endif
        !            22: 
        !            23: /*
        !            24:  * For each processor type we define 5 macros:
        !            25:  *     M???_INH(mcr)           inhibits further crd interrupts from mcr
        !            26:  *     M???_ENA(mcr)           enables another crd interrupt from mcr
        !            27:  *     M???_ERR(mcr)           tells whether an error is waiting
        !            28:  *     M???_SYN(mcr)           gives the syndrome bits of the error
        !            29:  *     M???_ADDR(mcr)          gives the address of the error
        !            30:  */
        !            31: #if VAX780
        !            32: #define        M780_ICRD       0x40000000      /* inhibit crd interrupts, in [2] */
        !            33: #define        M780_HIER       0x20000000      /* high error rate, in reg[2] */
        !            34: #define        M780_ERLOG      0x10000000      /* error log request, in reg[2] */
        !            35: /* on a 780, memory crd's occur only when bit 15 is set in the SBIER */
        !            36: /* register; bit 14 there is an error bit which we also clear */
        !            37: /* these bits are in the back of the ``red book'' (or in the VMS code) */
        !            38: 
        !            39: #define        M780_INH(mcr)   \
        !            40:        (((mcr)->mc_reg[2] = (M780_ICRD|M780_HIER|M780_ERLOG)), mtpr(SBIER, 0))
        !            41: #define        M780_ENA(mcr)   \
        !            42:        (((mcr)->mc_reg[2] = (M780_HIER|M780_ERLOG)), mtpr(SBIER, 3<<14))
        !            43: #define        M780_ERR(mcr)   \
        !            44:        ((mcr)->mc_reg[2] & (M780_ERLOG))
        !            45: 
        !            46: #define        M780_SYN(mcr)   ((mcr)->mc_reg[2] & 0xff)
        !            47: #define        M780_ADDR(mcr)  (((mcr)->mc_reg[2] >> 8) & 0xfffff)
        !            48: #endif
        !            49: 
        !            50: #if VAX750
        !            51: #define        M750_ICRD       0x10000000      /* inhibit crd interrupts, in [1] */
        !            52: #define        M750_UNCORR     0xc0000000      /* uncorrectable error, in [0] */
        !            53: #define        M750_CORERR     0x20000000      /* correctable error, in [0] */
        !            54: 
        !            55: #define        M750_INH(mcr)   ((mcr)->mc_reg[1] = 0)
        !            56: #define        M750_ENA(mcr)   ((mcr)->mc_reg[0] = (M750_UNCORR|M750_CORERR), \
        !            57:                            (mcr)->mc_reg[1] = M750_ICRD)
        !            58: #define        M750_ERR(mcr)   ((mcr)->mc_reg[0] & (M750_UNCORR|M750_CORERR))
        !            59: 
        !            60: #define        M750_SYN(mcr)   ((mcr)->mc_reg[0] & 0x7f)
        !            61: #define        M750_ADDR(mcr)  (((mcr)->mc_reg[0] >> 9) & 0x7fff)
        !            62: #endif
        !            63: 
        !            64: #if VAX730
        !            65: #define        M730_CRD        0x40000000      /* crd, in [1] */
        !            66: #define        M730_FTBPE      0x20000000      /* force tbuf parity error, in [1] */
        !            67: #define        M730_ENACRD     0x10000000      /* enable crd interrupt, in [1] */
        !            68: #define        M730_MME        0x08000000      /* mem-man enable (ala ipr), in [1] */
        !            69: #define        M730_DM         0x04000000      /* diagnostic mode, in [1] */
        !            70: #define        M730_DISECC     0x02000000      /* disable ecc, in [1] */
        !            71: 
        !            72: #define        M730_INH(mcr)   ((mcr)->mc_reg[1] = M730_MME)
        !            73: #define        M730_ENA(mcr)   ((mcr)->mc_reg[1] = (M730_MME|M730_ENACRD))
        !            74: #define        M730_ERR(mcr)   ((mcr)->mc_reg[1] & M730_CRD)
        !            75: #define        M730_SYN(mcr)   ((mcr)->mc_reg[0] & 0x7f)
        !            76: #define        M730_ADDR(mcr)  (((mcr)->mc_reg[0] >> 8) & 0x7fff)
        !            77: #endif
        !            78: 
        !            79: #define        MEMINTVL        (60*10)         /* 10 minutes */
        !            80: 
        !            81: #ifdef KERNEL
        !            82: int    nmcr;
        !            83: struct mcr *mcraddr[MAXNMCR];
        !            84: #endif

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