LXR linux/drivers/gpu/drm/nouveau/core/engine/bsp/nv84.c

   1/*
   2 * Copyright 2012 Red Hat Inc.
   3 *
   4 * Permission is hereby granted, free of charge, to any person obtaining a
   5 * copy of this software and associated documentation files (the "Software"),
   6 * to deal in the Software without restriction, including without limitation
   7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8 * and/or sell copies of the Software, and to permit persons to whom the
   9 * Software is furnished to do so, subject to the following conditions:
  10 *
  11 * The above copyright notice and this permission notice shall be included in
  12 * all copies or substantial portions of the Software.
  13 *
  14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20 * OTHER DEALINGS IN THE SOFTWARE.
  21 *
  22 * Authors: Ben Skeggs, Ilia Mirkin
  23 */
  24
  25#include <engine/xtensa.h>
  26#include <engine/bsp.h>
  27
  28/*******************************************************************************
  29 * BSP object classes
  30 ******************************************************************************/
  31
  32static struct nouveau_oclass
  33nv84_bsp_sclass[] = {
  34        { 0x74b0, &nouveau_object_ofuncs },
  35        {},
  36};
  37
  38/*******************************************************************************
  39 * BSP context
  40 ******************************************************************************/
  41
  42static struct nouveau_oclass
  43nv84_bsp_cclass = {
  44        .handle = NV_ENGCTX(BSP, 0x84),
  45        .ofuncs = &(struct nouveau_ofuncs) {
  46                .ctor = _nouveau_xtensa_engctx_ctor,
  47                .dtor = _nouveau_engctx_dtor,
  48                .init = _nouveau_engctx_init,
  49                .fini = _nouveau_engctx_fini,
  50                .rd32 = _nouveau_engctx_rd32,
  51                .wr32 = _nouveau_engctx_wr32,
  52        },
  53};
  54
  55/*******************************************************************************
  56 * BSP engine/subdev functions
  57 ******************************************************************************/
  58
  59static int
  60nv84_bsp_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
  61              struct nouveau_oclass *oclass, void *data, u32 size,
  62              struct nouveau_object **pobject)
  63{
  64        struct nouveau_xtensa *priv;
  65        int ret;
  66
  67        ret = nouveau_xtensa_create(parent, engine, oclass, 0x103000, true,
  68                                    "PBSP", "bsp", &priv);
  69        *pobject = nv_object(priv);
  70        if (ret)
  71                return ret;
  72
  73        nv_subdev(priv)->unit = 0x04008000;
  74        nv_engine(priv)->cclass = &nv84_bsp_cclass;
  75        nv_engine(priv)->sclass = nv84_bsp_sclass;
  76        priv->fifo_val = 0x1111;
  77        priv->unkd28 = 0x90044;
  78        return 0;
  79}
  80
  81struct nouveau_oclass
  82nv84_bsp_oclass = {
  83        .handle = NV_ENGINE(BSP, 0x84),
  84        .ofuncs = &(struct nouveau_ofuncs) {
  85                .ctor = nv84_bsp_ctor,
  86                .dtor = _nouveau_xtensa_dtor,
  87                .init = _nouveau_xtensa_init,
  88                .fini = _nouveau_xtensa_fini,
  89                .rd32 = _nouveau_xtensa_rd32,
  90                .wr32 = _nouveau_xtensa_wr32,
  91        },
  92};
  93