asdk-libdrm

/*

 * 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 <stdlib.h>

#include <stdint.h>

#include <stddef.h>

​

#include "private.h"

​

​

int

abi16_chan_nv04(struct nouveau_object *obj)

{

    struct nouveau_device *dev = (struct nouveau_device *)obj->parent;

    struct nv04_fifo *nv04 = obj->data;

    struct drm_nouveau_channel_alloc req = {nv04->vram, nv04->gart};

    int ret;

​

    ret = drmCommandWriteRead(dev->fd, DRM_NOUVEAU_CHANNEL_ALLOC,

                  &req, sizeof(req));

    if (ret)

        return ret;

​

    nv04->base.channel = req.channel;

    nv04->base.pushbuf = req.pushbuf_domains;

    nv04->notify = req.notifier_handle;

    nv04->base.object->handle = req.channel;

    nv04->base.object->length = sizeof(*nv04);

    return 0;

}

​

int

abi16_chan_nvc0(struct nouveau_object *obj)

{

    struct nouveau_device *dev = (struct nouveau_device *)obj->parent;

    struct drm_nouveau_channel_alloc req = {};

    struct nvc0_fifo *nvc0 = obj->data;

    int ret;

​

    ret = drmCommandWriteRead(dev->fd, DRM_NOUVEAU_CHANNEL_ALLOC,

                  &req, sizeof(req));

    if (ret)

        return ret;

​

    nvc0->base.channel = req.channel;

    nvc0->base.pushbuf = req.pushbuf_domains;

    nvc0->notify = req.notifier_handle;

    nvc0->base.object->handle = req.channel;

    nvc0->base.object->length = sizeof(*nvc0);

    return 0;

}

​

int

abi16_chan_nve0(struct nouveau_object *obj)

{

    struct nouveau_device *dev = (struct nouveau_device *)obj->parent;

    struct drm_nouveau_channel_alloc req = {};

    struct nve0_fifo *nve0 = obj->data;

    int ret;

​

    if (obj->length > offsetof(struct nve0_fifo, engine)) {

        req.fb_ctxdma_handle = 0xffffffff;

        req.tt_ctxdma_handle = nve0->engine;

    }

​

    ret = drmCommandWriteRead(dev->fd, DRM_NOUVEAU_CHANNEL_ALLOC,

                  &req, sizeof(req));

    if (ret)

        return ret;

​

    nve0->base.channel = req.channel;