1/*
2 * Copyright 2011 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 "drmP.h"
26#include "nouveau_drv.h"
27#include "nouveau_util.h"
28#include "nouveau_vm.h"
29#include "nouveau_ramht.h"
30
31/*XXX: This stub is currently used on NV98+ also, as soon as this becomes
32 *     more than just an enable/disable stub this needs to be split out to
33 *     nv98_vp.c...
34 */
35
36struct nv84_vp_engine {
37	struct nouveau_exec_engine base;
38};
39
40static int
41nv84_vp_fini(struct drm_device *dev, int engine, bool suspend)
42{
43	if (!(nv_rd32(dev, 0x000200) & 0x00020000))
44		return 0;
45
46	nv_mask(dev, 0x000200, 0x00020000, 0x00000000);
47	return 0;
48}
49
50static int
51nv84_vp_init(struct drm_device *dev, int engine)
52{
53	nv_mask(dev, 0x000200, 0x00020000, 0x00000000);
54	nv_mask(dev, 0x000200, 0x00020000, 0x00020000);
55	return 0;
56}
57
58static void
59nv84_vp_destroy(struct drm_device *dev, int engine)
60{
61	struct nv84_vp_engine *pvp = nv_engine(dev, engine);
62
63	NVOBJ_ENGINE_DEL(dev, VP);
64
65	kfree(pvp);
66}
67
68int
69nv84_vp_create(struct drm_device *dev)
70{
71	struct nv84_vp_engine *pvp;
72
73	pvp = kzalloc(sizeof(*pvp), GFP_KERNEL);
74	if (!pvp)
75		return -ENOMEM;
76
77	pvp->base.destroy = nv84_vp_destroy;
78	pvp->base.init = nv84_vp_init;
79	pvp->base.fini = nv84_vp_fini;
80
81	NVOBJ_ENGINE_ADD(dev, VP, &pvp->base);
82	return 0;
83}
84