nv50.c

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/*
 * Copyright 2012 Red Hat Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: Ben Skeggs
 */

#include <core/os.h>
#include <core/class.h>
#include <core/engctx.h>

#include <subdev/vm.h>
#include <subdev/bar.h>
#include <subdev/timer.h>

#include <engine/mpeg.h>

struct nv50_mpeg_priv {
    struct nouveau_mpeg base;
};

struct nv50_mpeg_chan {
    struct nouveau_mpeg_chan base;
};

/*******************************************************************************
 * MPEG object classes
 ******************************************************************************/

static int
nv50_mpeg_object_ctor(struct nouveau_object *parent,
              struct nouveau_object *engine,
              struct nouveau_oclass *oclass, void *data, u32 size,
              struct nouveau_object **pobject)
{
    struct nouveau_gpuobj *obj;
    int ret;

    ret = nouveau_gpuobj_create(parent, engine, oclass, 0, parent,
                    16, 16, 0, &obj);
    *pobject = nv_object(obj);
    if (ret)
        return ret;

    nv_wo32(obj, 0x00, nv_mclass(obj));
    nv_wo32(obj, 0x04, 0x00000000);
    nv_wo32(obj, 0x08, 0x00000000);
    nv_wo32(obj, 0x0c, 0x00000000);
    return 0;
}

struct nouveau_ofuncs
nv50_mpeg_ofuncs = {
    .ctor = nv50_mpeg_object_ctor,
    .dtor = _nouveau_gpuobj_dtor,
    .init = _nouveau_gpuobj_init,
    .fini = _nouveau_gpuobj_fini,
    .rd32 = _nouveau_gpuobj_rd32,
    .wr32 = _nouveau_gpuobj_wr32,
};

static struct nouveau_oclass
nv50_mpeg_sclass[] = {
    { 0x3174, &nv50_mpeg_ofuncs },
    {}
};

/*******************************************************************************
 * PMPEG context
 ******************************************************************************/

int
nv50_mpeg_context_ctor(struct nouveau_object *parent,
               struct nouveau_object *engine,
               struct nouveau_oclass *oclass, void *data, u32 size,
               struct nouveau_object **pobject)
{
    struct nouveau_bar *bar = nouveau_bar(parent);
    struct nv50_mpeg_chan *chan;
    int ret;

    ret = nouveau_mpeg_context_create(parent, engine, oclass, NULL, 128 * 4,
                      0, NVOBJ_FLAG_ZERO_ALLOC, &chan);
    *pobject = nv_object(chan);
    if (ret)
        return ret;

    nv_wo32(chan, 0x0070, 0x00801ec1);
    nv_wo32(chan, 0x007c, 0x0000037c);
    bar->flush(bar);
    return 0;
}

static struct nouveau_oclass
nv50_mpeg_cclass = {
    .handle = NV_ENGCTX(MPEG, 0x50),
    .ofuncs = &(struct nouveau_ofuncs) {
        .ctor = nv50_mpeg_context_ctor,
        .dtor = _nouveau_mpeg_context_dtor,
        .init = _nouveau_mpeg_context_init,
        .fini = _nouveau_mpeg_context_fini,
        .rd32 = _nouveau_mpeg_context_rd32,
        .wr32 = _nouveau_mpeg_context_wr32,
    },
};

/*******************************************************************************
 * PMPEG engine/subdev functions
 ******************************************************************************/

int
nv50_mpeg_tlb_flush(struct nouveau_engine *engine)
{
    nv50_vm_flush_engine(&engine->base, 0x08);
    return 0;
}

void
nv50_mpeg_intr(struct nouveau_subdev *subdev)
{
    struct nv50_mpeg_priv *priv = (void *)subdev;
    u32 stat = nv_rd32(priv, 0x00b100);
    u32 type = nv_rd32(priv, 0x00b230);
    u32 mthd = nv_rd32(priv, 0x00b234);
    u32 data = nv_rd32(priv, 0x00b238);
    u32 show = stat;

    if (stat & 0x01000000) {
        /* happens on initial binding of the object */
        if (type == 0x00000020 && mthd == 0x0000) {
            nv_wr32(priv, 0x00b308, 0x00000100);
            show &= ~0x01000000;
        }
    }

    if (show) {
        nv_info(priv, "0x%08x 0x%08x 0x%08x 0x%08x\n",
            stat, type, mthd, data);
    }

    nv_wr32(priv, 0x00b100, stat);
    nv_wr32(priv, 0x00b230, 0x00000001);
    nv50_fb_trap(nouveau_fb(priv), 1);
}

static void
nv50_vpe_intr(struct nouveau_subdev *subdev)
{
    struct nv50_mpeg_priv *priv = (void *)subdev;

    if (nv_rd32(priv, 0x00b100))
        nv50_mpeg_intr(subdev);

    if (nv_rd32(priv, 0x00b800)) {
        u32 stat = nv_rd32(priv, 0x00b800);
        nv_info(priv, "PMSRCH: 0x%08x\n", stat);
        nv_wr32(priv, 0xb800, stat);
    }
}

static int
nv50_mpeg_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
           struct nouveau_oclass *oclass, void *data, u32 size,
           struct nouveau_object **pobject)
{
    struct nv50_mpeg_priv *priv;
    int ret;

    ret = nouveau_mpeg_create(parent, engine, oclass, &priv);
    *pobject = nv_object(priv);
    if (ret)
        return ret;

    nv_subdev(priv)->unit = 0x00400002;
    nv_subdev(priv)->intr = nv50_vpe_intr;
    nv_engine(priv)->cclass = &nv50_mpeg_cclass;
    nv_engine(priv)->sclass = nv50_mpeg_sclass;
    nv_engine(priv)->tlb_flush = nv50_mpeg_tlb_flush;
    return 0;
}

int
nv50_mpeg_init(struct nouveau_object *object)
{
    struct nv50_mpeg_priv *priv = (void *)object;
    int ret;

    ret = nouveau_mpeg_init(&priv->base);
    if (ret)
        return ret;

    nv_wr32(priv, 0x00b32c, 0x00000000);
    nv_wr32(priv, 0x00b314, 0x00000100);
    nv_wr32(priv, 0x00b0e0, 0x0000001a);

    nv_wr32(priv, 0x00b220, 0x00000044);
    nv_wr32(priv, 0x00b300, 0x00801ec1);
    nv_wr32(priv, 0x00b390, 0x00000000);
    nv_wr32(priv, 0x00b394, 0x00000000);
    nv_wr32(priv, 0x00b398, 0x00000000);
    nv_mask(priv, 0x00b32c, 0x00000001, 0x00000001);

    nv_wr32(priv, 0x00b100, 0xffffffff);
    nv_wr32(priv, 0x00b140, 0xffffffff);

    if (!nv_wait(priv, 0x00b200, 0x00000001, 0x00000000)) {
        nv_error(priv, "timeout 0x%08x\n", nv_rd32(priv, 0x00b200));
        return -EBUSY;
    }

    return 0;
}

struct nouveau_oclass
nv50_mpeg_oclass = {
    .handle = NV_ENGINE(MPEG, 0x50),
    .ofuncs = &(struct nouveau_ofuncs) {
        .ctor = nv50_mpeg_ctor,
        .dtor = _nouveau_mpeg_dtor,
        .init = nv50_mpeg_init,
        .fini = _nouveau_mpeg_fini,
    },
};