mc/mc-amd/mcamd_rowcol_impl.h

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 *
 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef _MCAMD_ROWCOL_IMPL_H
#define _MCAMD_ROWCOL_IMPL_H

#pragma ident   "%Z%%M% %I% %E% SMI"

#include <mcamd_api.h>
#include <sys/mc_amd.h>

#ifdef __cplusplus
extern "C" {
#endif

#define MC_PC_COLADDRBIT    10  /* col address bit used for precharge */
#define MC_PC_ALL       -1  /* marker used in tables */

#define MC_CS_SCALE     (1024 * 1024)
#define MC_CS_SIZE(bam, width) \
    ((size_t)bam->bam_sizemb * MC_CS_SCALE * ((width) == 128 ? 2 : 1))

#define MC_CS_MODE(csbmap, csnum) \
    (csbmap >> MC_CHIP_DIMMPAIR(csnum) * MC_DC_BAM_CSBANK_SHIFT & \
    MC_DC_BAM_CSBANK_MASK)

#define BIT(val, num) ((val) & 1ULL << num)

#define BITS(val, high, low) \
    ((val) & (((2ULL << (high)) - 1) & ~((1ULL << (low)) - 1)))

#define SETBIT(var, num) (var |= (1ULL << (num)))

#define BITVAL(var, num) ((BIT(var, num) >> (num)) & 1ULL)

#define MC_RC_ROW_MAX       16  /* maximum number of row address bits */
#define MC_RC_COL_MAX       12  /* maximum number of col address bits */
#define MC_RC_BANKBITS_MAX  3   /* number of internal banksel bits */
#define MC_RC_CSMODES       16  /* max number of cs bankaddr modes */
#define MC_RC_SWZLBITS      2   /* number of row bits in swizzle */

struct rct_bnkaddrmode {
    int bam_sizemb;         /* DIMM size in MB */
    int bam_nrows;          /* number of row address bits */
    int bam_ncols;          /* number of column address bits */
    int bam_ambig;          /* numbers are maximums; keep last */
};

struct rct_rcbmap {
    int rcb_nbankbits;          /* # of bank address bits */
    int rcb_bankbit[MC_RC_BANKBITS_MAX];    /* bank address bits */
    int rcb_rowbit[MC_RC_ROW_MAX];
    int rcb_colbit[MC_RC_COL_MAX + 1];  /* one for MC_PC_ALL */
};

struct rct_bnkswzlinfo {
    int bswz_rowbits[MC_RC_BANKBITS_MAX][MC_RC_SWZLBITS];
};

struct rct_csintlv {
    int csi_factor;         /* cs interleave factor */
    int csi_hibit;          /* first non-offset bit in addr */
    int csi_lobit;          /* first row bit in addr */
    int csi_nbits;          /* number of bits to swap in mask */
};

#define MC_RC_CSI_SWAPPED_BIT(csidp, n)             \
    (csidp->csi_factor && n >= csidp->csi_lobit &&      \
    n <= csidp->csi_lobit + csidp->csi_nbits - 1)

#define MC_RC_CSI_BITSWAP(csidp, n)             \
    (csidp->csi_hibit + n - csidp->csi_lobit)

extern const struct rct_bnkaddrmode *rct_bnkaddrmode(uint_t, uint_t);
extern const struct rct_rcbmap *rct_rcbmap(uint_t, int, uint_t);
extern const struct rct_bnkswzlinfo *rct_bnkswzlinfo(uint_t, int);
extern void rct_csintlv_bits(uint_t, int, uint_t, int, struct rct_csintlv *);

#ifdef __cplusplus
}
#endif

#endif /* _MCAMD_ROWCOL_IMPL_H */