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/os.h>
26#include <core/engctx.h>
27#include <core/namedb.h>
28#include <core/handle.h>
29#include <core/gpuobj.h>
30#include <core/event.h>
31#include <nvif/event.h>
32
33#include <subdev/bar.h>
34
35#include <engine/disp.h>
36
37#include "nv50.h"
38
39/*******************************************************************************
40 * software object classes
41 ******************************************************************************/
42
43static int
44nv50_software_mthd_dma_vblsem(struct nouveau_object *object, u32 mthd,
45			      void *args, u32 size)
46{
47	struct nv50_software_chan *chan = (void *)nv_engctx(object->parent);
48	struct nouveau_fifo_chan *fifo = (void *)nv_object(chan)->parent;
49	struct nouveau_handle *handle;
50	int ret = -EINVAL;
51
52	handle = nouveau_namedb_get(nv_namedb(fifo), *(u32 *)args);
53	if (!handle)
54		return -ENOENT;
55
56	if (nv_iclass(handle->object, NV_GPUOBJ_CLASS)) {
57		struct nouveau_gpuobj *gpuobj = nv_gpuobj(handle->object);
58		chan->vblank.ctxdma = gpuobj->node->offset >> 4;
59		ret = 0;
60	}
61	nouveau_namedb_put(handle);
62	return ret;
63}
64
65static int
66nv50_software_mthd_vblsem_offset(struct nouveau_object *object, u32 mthd,
67				 void *args, u32 size)
68{
69	struct nv50_software_chan *chan = (void *)nv_engctx(object->parent);
70	chan->vblank.offset = *(u32 *)args;
71	return 0;
72}
73
74int
75nv50_software_mthd_vblsem_value(struct nouveau_object *object, u32 mthd,
76				void *args, u32 size)
77{
78	struct nv50_software_chan *chan = (void *)nv_engctx(object->parent);
79	chan->vblank.value = *(u32 *)args;
80	return 0;
81}
82
83int
84nv50_software_mthd_vblsem_release(struct nouveau_object *object, u32 mthd,
85				  void *args, u32 size)
86{
87	struct nv50_software_chan *chan = (void *)nv_engctx(object->parent);
88	u32 head = *(u32 *)args;
89	if (head >= nouveau_disp(chan)->vblank.index_nr)
90		return -EINVAL;
91
92	nvkm_notify_get(&chan->vblank.notify[head]);
93	return 0;
94}
95
96int
97nv50_software_mthd_flip(struct nouveau_object *object, u32 mthd,
98			void *args, u32 size)
99{
100	struct nv50_software_chan *chan = (void *)nv_engctx(object->parent);
101	if (chan->base.flip)
102		return chan->base.flip(chan->base.flip_data);
103	return -EINVAL;
104}
105
106static struct nouveau_omthds
107nv50_software_omthds[] = {
108	{ 0x018c, 0x018c, nv50_software_mthd_dma_vblsem },
109	{ 0x0400, 0x0400, nv50_software_mthd_vblsem_offset },
110	{ 0x0404, 0x0404, nv50_software_mthd_vblsem_value },
111	{ 0x0408, 0x0408, nv50_software_mthd_vblsem_release },
112	{ 0x0500, 0x0500, nv50_software_mthd_flip },
113	{}
114};
115
116static struct nouveau_oclass
117nv50_software_sclass[] = {
118	{ 0x506e, &nouveau_object_ofuncs, nv50_software_omthds },
119	{}
120};
121
122/*******************************************************************************
123 * software context
124 ******************************************************************************/
125
126static int
127nv50_software_vblsem_release(struct nvkm_notify *notify)
128{
129	struct nv50_software_chan *chan =
130		container_of(notify, typeof(*chan), vblank.notify[notify->index]);
131	struct nv50_software_priv *priv = (void *)nv_object(chan)->engine;
132	struct nouveau_bar *bar = nouveau_bar(priv);
133
134	nv_wr32(priv, 0x001704, chan->vblank.channel);
135	nv_wr32(priv, 0x001710, 0x80000000 | chan->vblank.ctxdma);
136	bar->flush(bar);
137
138	if (nv_device(priv)->chipset == 0x50) {
139		nv_wr32(priv, 0x001570, chan->vblank.offset);
140		nv_wr32(priv, 0x001574, chan->vblank.value);
141	} else {
142		nv_wr32(priv, 0x060010, chan->vblank.offset);
143		nv_wr32(priv, 0x060014, chan->vblank.value);
144	}
145
146	return NVKM_NOTIFY_DROP;
147}
148
149void
150nv50_software_context_dtor(struct nouveau_object *object)
151{
152	struct nv50_software_chan *chan = (void *)object;
153	int i;
154
155	for (i = 0; i < ARRAY_SIZE(chan->vblank.notify); i++)
156		nvkm_notify_fini(&chan->vblank.notify[i]);
157
158	nouveau_software_context_destroy(&chan->base);
159}
160
161int
162nv50_software_context_ctor(struct nouveau_object *parent,
163			   struct nouveau_object *engine,
164			   struct nouveau_oclass *oclass, void *data, u32 size,
165			   struct nouveau_object **pobject)
166{
167	struct nouveau_disp *pdisp = nouveau_disp(parent);
168	struct nv50_software_cclass *pclass = (void *)oclass;
169	struct nv50_software_chan *chan;
170	int ret, i;
171
172	ret = nouveau_software_context_create(parent, engine, oclass, &chan);
173	*pobject = nv_object(chan);
174	if (ret)
175		return ret;
176
177	for (i = 0; pdisp && i < pdisp->vblank.index_nr; i++) {
178		ret = nvkm_notify_init(NULL, &pdisp->vblank, pclass->vblank,
179				       false,
180				       &(struct nvif_notify_head_req_v0) {
181					.head = i,
182				       },
183				       sizeof(struct nvif_notify_head_req_v0),
184				       sizeof(struct nvif_notify_head_rep_v0),
185				       &chan->vblank.notify[i]);
186		if (ret)
187			return ret;
188	}
189
190	chan->vblank.channel = nv_gpuobj(parent->parent)->addr >> 12;
191	return 0;
192}
193
194static struct nv50_software_cclass
195nv50_software_cclass = {
196	.base.handle = NV_ENGCTX(SW, 0x50),
197	.base.ofuncs = &(struct nouveau_ofuncs) {
198		.ctor = nv50_software_context_ctor,
199		.dtor = nv50_software_context_dtor,
200		.init = _nouveau_software_context_init,
201		.fini = _nouveau_software_context_fini,
202	},
203	.vblank = nv50_software_vblsem_release,
204};
205
206/*******************************************************************************
207 * software engine/subdev functions
208 ******************************************************************************/
209
210int
211nv50_software_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
212		   struct nouveau_oclass *oclass, void *data, u32 size,
213		   struct nouveau_object **pobject)
214{
215	struct nv50_software_oclass *pclass = (void *)oclass;
216	struct nv50_software_priv *priv;
217	int ret;
218
219	ret = nouveau_software_create(parent, engine, oclass, &priv);
220	*pobject = nv_object(priv);
221	if (ret)
222		return ret;
223
224	nv_engine(priv)->cclass = pclass->cclass;
225	nv_engine(priv)->sclass = pclass->sclass;
226	nv_subdev(priv)->intr = nv04_software_intr;
227	return 0;
228}
229
230struct nouveau_oclass *
231nv50_software_oclass = &(struct nv50_software_oclass) {
232	.base.handle = NV_ENGINE(SW, 0x50),
233	.base.ofuncs = &(struct nouveau_ofuncs) {
234		.ctor = nv50_software_ctor,
235		.dtor = _nouveau_software_dtor,
236		.init = _nouveau_software_init,
237		.fini = _nouveau_software_fini,
238	},
239	.cclass = &nv50_software_cclass.base,
240	.sclass =  nv50_software_sclass,
241}.base;
242