usr/src/uts/sun4u/sys/mem_cache.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25 #ifndef _MEM_CACHE_H
  26 #define _MEM_CACHE_H
  27
  28 #pragma ident   "%Z%%M% %I%     %E% SMI"
  29
  30 #ifdef  __cplusplus
  31 extern "C" {
  32 #endif
  33
  34 #define mem_cache_device        "/devices/pseudo/mem_cache@0:mem_cache0"
  35 #define mem_cache_device1       "/devices/pseudo/mem_cache@1:mem_cache1"
  36 #define mem_cache_device2       "/devices/pseudo/mem_cache@2:mem_cache2"
  37 #define mem_cache_device3       "/devices/pseudo/mem_cache@3:mem_cache3"
  38 #define MEM_CACHE_DRIVER_NAME   "mem_cache"
  39 #ifdef DEBUG
  40 #define MAX_MEM_CACHE_INSTANCES 4
  41 #else
  42 #define MAX_MEM_CACHE_INSTANCES 1
  43 #endif
  44 #define PN_CACHE_NWAYS  4
  45 #define PN_CACHE_LINESIZE       64
  46 #define PN_CACHE_LINE_SHIFT     6
  47 #define MAX_BIT_POSITION        511
  48 #define PN_L2_IDX_HW_ECC_EN     INT64_C(0x0000000000400000)
  49 #define PN_L3_IDX_HW_ECC_EN     INT64_C(0x0000000002000000)
  50 #define MSB_BIT_MASK            (1 << 15)
  51 #define TAG_BIT_MASK            0x3f
  52
  53
  54 /*
  55  * Private ioctls for fmd(1M).  These interfaces are Sun Private.  Applications
  56  * and drivers should not make use of these interfaces: they can change without
  57  * notice and programs that consume them will fail to run on future releases.
  58  */
  59
  60 #define MEM_CACHE_RETIRE        (('C' << 8) | 0x01)
  61 #define MEM_CACHE_ISRETIRED     (('C' << 8) | 0x02)
  62 #define MEM_CACHE_UNRETIRE      (('C' << 8) | 0x03)
  63 #define MEM_CACHE_STATE         (('C' << 8) | 0x04)
  64 #define MEM_CACHE_READ_TAGS     (('C' << 8) | 0x05)
  65 #define MEM_CACHE_INJECT_ERR    (('C' << 8) | 0x06)
  66 #define MEM_CACHE_READ_ERROR_INJECTED_TAGS      (('C' << 8) | 0x07)
  67 #define MEM_CACHE_PARK_UNPARK   (('C' << 8) | 0x08)
  68 #define MEM_CACHE_READ_RETIRE_CODE      (('C' << 8) | 0x09)
  69 #define MEM_CACHE_RW_RETIRE_CODE        (('C' << 8) | 0x0a)
  70 #define MEM_CACHE_RETIRE_AND_RW (('C' << 8) | 0x0b)
  71 #define MEM_CACHE_RW_COLLISION_CODE     (('C' << 8) | 0x0c)
  72 #define MEM_CACHE_UNRETIRE_AND_RW       (('C' << 8) | 0x0d)
  73 #define MEM_CACHE_RETIRE_AND_UNRETIRE_RW        (('C' << 8) | 0x0e)
  74
  75 typedef enum {
  76         L2_CACHE_DATA,
  77         L2_CACHE_TAG,
  78         L3_CACHE_DATA,
  79         L3_CACHE_TAG
  80 } cache_id_t;
  81
  82 typedef struct cache_info {
  83                 int             cpu_id;
  84                 cache_id_t      cache;
  85                 uint32_t        index;
  86                 uint32_t        way;
  87                 uint16_t        bit;
  88                 void            *datap;
  89 } cache_info_t;
  90
  91 #ifdef  __cplusplus
  92 }
  93 #endif
  94
  95 #endif /* _MEM_CACHE_H */