bhndb_hwdata.c

Version: - FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10

    1 /*-
    2  * Copyright (c) 2015 Landon Fuller <landon@landonf.org>
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer,
   10  *    without modification.
   11  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
   12  *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
   13  *    redistribution must be conditioned upon including a substantially
   14  *    similar Disclaimer requirement for further binary redistribution.
   15  *
   16  * NO WARRANTY
   17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   18  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   19  * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
   20  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
   21  * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
   22  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
   25  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   27  * THE POSSIBILITY OF SUCH DAMAGES.
   28  */
   29 
   30 #include <sys/cdefs.h>
   31 __FBSDID("$FreeBSD$");
   32 
   33 #include <sys/param.h>
   34 
   35 #include <dev/bhnd/bhnd_ids.h>
   36 #include <dev/bhnd/bhndreg.h>
   37 #include <dev/bhnd/bhnd.h>
   38 
   39 #include "bhndb_hwdata.h"
   40 
   41 /*
   42  * Resource priority specifications shared by all bhndb(4) bridge
   43  * implementations.
   44  */
   45 
   46 /*
   47  * Define a bhndb_port_priority table.
   48  */
   49 #define BHNDB_PORTS(...)        \
   50         .ports          = _BHNDB_PORT_ARRAY(__VA_ARGS__),               \
   51         .num_ports      = nitems(_BHNDB_PORT_ARRAY(__VA_ARGS__))
   52 
   53 #define _BHNDB_PORT_ARRAY(...) (const struct bhndb_port_priority[]) {   \
   54         __VA_ARGS__                                                     \
   55 }
   56 
   57 /*
   58  * Define a core priority record for all cores matching @p devclass
   59  */
   60 #define BHNDB_CLASS_PRIO(_devclass, _priority, ...) {           \
   61         .match  = {                                                     \
   62                 BHND_MATCH_CORE_CLASS(BHND_DEVCLASS_ ## _devclass),     \
   63         },                                                              \
   64         .priority = (BHNDB_PRIORITY_ ## _priority),             \
   65         BHNDB_PORTS(__VA_ARGS__)                                        \
   66 }
   67 
   68 /*
   69  * Define a default core priority record
   70  */
   71 #define BHNDB_DEFAULT_PRIO(...) {               \
   72         .match  = {                             \
   73                 BHND_MATCH_ANY  ,               \
   74         },                                      \
   75         .priority = (BHNDB_PRIORITY_DEFAULT),   \
   76         BHNDB_PORTS(__VA_ARGS__)                \
   77 }
   78 
   79 /* Define a port priority record for the type/port/region triplet, optionally
   80  * specifying port allocation flags as the final argument */
   81 #define BHNDB_PORT_PRIO(_type, _port, _region, _priority, ...)  \
   82         _BHNDB_PORT_PRIO(_type, _port, _region, _priority, ## __VA_ARGS__, 0)
   83 
   84 #define _BHNDB_PORT_PRIO(_type, _port, _region, _priority, _flags, ...) \
   85 {                                                               \
   86         .type           = (BHND_PORT_ ## _type),                \
   87         .port           = _port,                                \
   88         .region         = _region,                              \
   89         .priority       = (BHNDB_PRIORITY_ ## _priority),       \
   90         .alloc_flags    = (_flags)                              \
   91 }
   92 
   93 /* Define a port priority record for the default (_type, 0, 0) type/port/region
   94  * triplet. */
   95 #define BHNDB_PORT0_PRIO(_type, _priority, ...) \
   96         BHNDB_PORT_PRIO(_type, 0, 0, _priority, ## __VA_ARGS__, 0)
   97 
   98 /**
   99  * Generic resource priority configuration usable with all currently supported
  100  * bcma(4)-based PCI devices.
  101  */
  102 const struct bhndb_hw_priority bhndb_bcma_priority_table[] = {
  103         /*
  104          * Ignorable device classes.
  105          * 
  106          * Runtime access to these cores is not required, and no register
  107          * windows should be reserved for these device types.
  108          */
  109         BHNDB_CLASS_PRIO(SOC_ROUTER,    NONE),
  110         BHNDB_CLASS_PRIO(SOC_BRIDGE,    NONE),
  111         BHNDB_CLASS_PRIO(EROM,          NONE),
  112         BHNDB_CLASS_PRIO(OTHER,         NONE),
  113 
  114         /*
  115          * Low priority device classes.
  116          * 
  117          * These devices do not sit in a performance-critical path and can be
  118          * treated as a low allocation priority.
  119          */
  120         BHNDB_CLASS_PRIO(CC,            LOW,
  121                 /* Device Block */
  122                 BHNDB_PORT0_PRIO(DEVICE,        LOW),
  123 
  124                 /* CC agent registers are not accessed via the bridge. */
  125                 BHNDB_PORT0_PRIO(AGENT,         NONE)
  126         ),
  127 
  128         BHNDB_CLASS_PRIO(PMU,           LOW,
  129                 /* Device Block */
  130                 BHNDB_PORT0_PRIO(DEVICE,        LOW),
  131 
  132                 /* PMU agent registers are not accessed via the bridge. */
  133                 BHNDB_PORT0_PRIO(AGENT,         NONE)
  134         ),
  135 
  136         /*
  137          * Default Core Behavior
  138          * 
  139          * All other cores are assumed to require efficient runtime access to
  140          * the default device port, and if supported by the bus, an agent port.
  141          */
  142         BHNDB_DEFAULT_PRIO(
  143                 /* Device Block */
  144                 BHNDB_PORT0_PRIO(DEVICE,        HIGH),
  145 
  146                 /* Agent Block */
  147                 BHNDB_PORT0_PRIO(AGENT,         DEFAULT)
  148         ),
  149 
  150         BHNDB_HW_PRIORITY_TABLE_END
  151 };
  152 
  153 /**
  154  * Generic resource priority configuration usable with all currently supported
  155  * siba(4)-based PCI devices.
  156  */
  157 const struct bhndb_hw_priority bhndb_siba_priority_table[] = {
  158         /*
  159          * Ignorable device classes.
  160          * 
  161          * Runtime access to these cores is not required, and no register
  162          * windows should be reserved for these device types.
  163          */
  164         BHNDB_CLASS_PRIO(SOC_ROUTER,    NONE),
  165         BHNDB_CLASS_PRIO(SOC_BRIDGE,    NONE),
  166         BHNDB_CLASS_PRIO(EROM,          NONE),
  167         BHNDB_CLASS_PRIO(OTHER,         NONE),
  168 
  169         /*
  170          * Low priority device classes.
  171          * 
  172          * These devices do not sit in a performance-critical path and can be
  173          * treated as a low allocation priority.
  174          * 
  175          * Agent ports are marked as 'NONE' on siba(4) devices, as they
  176          * will be fully mappable via register windows shared with the
  177          * device0.0 port.
  178          * 
  179          * To support early PCI_V0 devices, we enable FULFILL_ON_OVERCOMMIT for
  180          * ChipCommon.
  181          */
  182         BHNDB_CLASS_PRIO(CC,            LOW,
  183                 /* Device Block */
  184                 BHNDB_PORT_PRIO(DEVICE, 0,      0,      LOW,
  185                     BHNDB_ALLOC_FULFILL_ON_OVERCOMMIT)
  186         ),
  187 
  188         BHNDB_CLASS_PRIO(PMU,           LOW,
  189                 /* Device Block */
  190                 BHNDB_PORT_PRIO(DEVICE, 0,      0,      LOW)
  191         ),
  192 
  193         /*
  194          * Default Core Behavior
  195          * 
  196          * All other cores are assumed to require efficient runtime access to
  197          * the device port.
  198          */
  199         BHNDB_DEFAULT_PRIO(
  200                 /* Device Block */
  201                 BHNDB_PORT_PRIO(DEVICE, 0,      0,      HIGH)
  202         ),
  203 
  204         BHNDB_HW_PRIORITY_TABLE_END
  205 };

Cache object: 663bc482ea5942e90910eedb4a685195

[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.

FreeBSD/Linux Kernel Cross Reference sys/dev/bhnd/bhndb/bhndb_hwdata.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/bhnd/bhndb/bhndb_hwdata.c