LXR linux/drivers/gpu/drm/nouveau/core/engine/copy/nva3.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
  23 */
  24
  25#include <core/client.h>
  26#include <core/falcon.h>
  27#include <core/class.h>
  28#include <core/enum.h>
  29
  30#include <subdev/fb.h>
  31#include <subdev/vm.h>
  32
  33#include <engine/fifo.h>
  34#include <engine/copy.h>
  35
  36#include "fuc/nva3.fuc.h"
  37
  38struct nva3_copy_priv {
  39        struct nouveau_falcon base;
  40};
  41
  42/*******************************************************************************
  43 * Copy object classes
  44 ******************************************************************************/
  45
  46static struct nouveau_oclass
  47nva3_copy_sclass[] = {
  48        { 0x85b5, &nouveau_object_ofuncs },
  49        {}
  50};
  51
  52/*******************************************************************************
  53 * PCOPY context
  54 ******************************************************************************/
  55
  56static struct nouveau_oclass
  57nva3_copy_cclass = {
  58        .handle = NV_ENGCTX(COPY0, 0xa3),
  59        .ofuncs = &(struct nouveau_ofuncs) {
  60                .ctor = _nouveau_falcon_context_ctor,
  61                .dtor = _nouveau_falcon_context_dtor,
  62                .init = _nouveau_falcon_context_init,
  63                .fini = _nouveau_falcon_context_fini,
  64                .rd32 = _nouveau_falcon_context_rd32,
  65                .wr32 = _nouveau_falcon_context_wr32,
  66
  67        },
  68};
  69
  70/*******************************************************************************
  71 * PCOPY engine/subdev functions
  72 ******************************************************************************/
  73
  74static const struct nouveau_enum nva3_copy_isr_error_name[] = {
  75        { 0x0001, "ILLEGAL_MTHD" },
  76        { 0x0002, "INVALID_ENUM" },
  77        { 0x0003, "INVALID_BITFIELD" },
  78        {}
  79};
  80
  81void
  82nva3_copy_intr(struct nouveau_subdev *subdev)
  83{
  84        struct nouveau_fifo *pfifo = nouveau_fifo(subdev);
  85        struct nouveau_engine *engine = nv_engine(subdev);
  86        struct nouveau_falcon *falcon = (void *)subdev;
  87        struct nouveau_object *engctx;
  88        u32 dispatch = nv_ro32(falcon, 0x01c);
  89        u32 stat = nv_ro32(falcon, 0x008) & dispatch & ~(dispatch >> 16);
  90        u64 inst = nv_ro32(falcon, 0x050) & 0x3fffffff;
  91        u32 ssta = nv_ro32(falcon, 0x040) & 0x0000ffff;
  92        u32 addr = nv_ro32(falcon, 0x040) >> 16;
  93        u32 mthd = (addr & 0x07ff) << 2;
  94        u32 subc = (addr & 0x3800) >> 11;
  95        u32 data = nv_ro32(falcon, 0x044);
  96        int chid;
  97
  98        engctx = nouveau_engctx_get(engine, inst);
  99        chid   = pfifo->chid(pfifo, engctx);
 100
 101        if (stat & 0x00000040) {
 102                nv_error(falcon, "DISPATCH_ERROR [");
 103                nouveau_enum_print(nva3_copy_isr_error_name, ssta);
 104                pr_cont("] ch %d [0x%010llx %s] subc %d mthd 0x%04x data 0x%08x\n",
 105                       chid, inst << 12, nouveau_client_name(engctx), subc,
 106                       mthd, data);
 107                nv_wo32(falcon, 0x004, 0x00000040);
 108                stat &= ~0x00000040;
 109        }
 110
 111        if (stat) {
 112                nv_error(falcon, "unhandled intr 0x%08x\n", stat);
 113                nv_wo32(falcon, 0x004, stat);
 114        }
 115
 116        nouveau_engctx_put(engctx);
 117}
 118
 119static int
 120nva3_copy_tlb_flush(struct nouveau_engine *engine)
 121{
 122        nv50_vm_flush_engine(&engine->base, 0x0d);
 123        return 0;
 124}
 125
 126static int
 127nva3_copy_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
 128               struct nouveau_oclass *oclass, void *data, u32 size,
 129               struct nouveau_object **pobject)
 130{
 131        bool enable = (nv_device(parent)->chipset != 0xaf);
 132        struct nva3_copy_priv *priv;
 133        int ret;
 134
 135        ret = nouveau_falcon_create(parent, engine, oclass, 0x104000, enable,
 136                                    "PCE0", "copy0", &priv);
 137        *pobject = nv_object(priv);
 138        if (ret)
 139                return ret;
 140
 141        nv_subdev(priv)->unit = 0x00802000;
 142        nv_subdev(priv)->intr = nva3_copy_intr;
 143        nv_engine(priv)->cclass = &nva3_copy_cclass;
 144        nv_engine(priv)->sclass = nva3_copy_sclass;
 145        nv_engine(priv)->tlb_flush = nva3_copy_tlb_flush;
 146        nv_falcon(priv)->code.data = nva3_pcopy_code;
 147        nv_falcon(priv)->code.size = sizeof(nva3_pcopy_code);
 148        nv_falcon(priv)->data.data = nva3_pcopy_data;
 149        nv_falcon(priv)->data.size = sizeof(nva3_pcopy_data);
 150        return 0;
 151}
 152
 153struct nouveau_oclass
 154nva3_copy_oclass = {
 155        .handle = NV_ENGINE(COPY0, 0xa3),
 156        .ofuncs = &(struct nouveau_ofuncs) {
 157                .ctor = nva3_copy_ctor,
 158                .dtor = _nouveau_falcon_dtor,
 159                .init = _nouveau_falcon_init,
 160                .fini = _nouveau_falcon_fini,
 161                .rd32 = _nouveau_falcon_rd32,
 162                .wr32 = _nouveau_falcon_wr32,
 163        },
 164};
 165