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#include "channv50.h"
25#include "rootnv50.h"
26
27#include <core/client.h>
28#include <core/ramht.h>
29#include <engine/dma.h>
30
31#include <nvif/class.h>
32#include <nvif/event.h>
33#include <nvif/unpack.h>
34
35static void
36nv50_disp_mthd_list(struct nv50_disp *disp, int debug, u32 base, int c,
37		    const struct nv50_disp_mthd_list *list, int inst)
38{
39	struct nvkm_subdev *subdev = &disp->base.engine.subdev;
40	struct nvkm_device *device = subdev->device;
41	int i;
42
43	for (i = 0; list->data[i].mthd; i++) {
44		if (list->data[i].addr) {
45			u32 next = nvkm_rd32(device, list->data[i].addr + base + 0);
46			u32 prev = nvkm_rd32(device, list->data[i].addr + base + c);
47			u32 mthd = list->data[i].mthd + (list->mthd * inst);
48			const char *name = list->data[i].name;
49			char mods[16];
50
51			if (prev != next)
52				snprintf(mods, sizeof(mods), "-> %08x", next);
53			else
54				snprintf(mods, sizeof(mods), "%13c", ' ');
55
56			nvkm_printk_(subdev, debug, info,
57				     "\t%04x: %08x %s%s%s\n",
58				     mthd, prev, mods, name ? " // " : "",
59				     name ? name : "");
60		}
61	}
62}
63
64void
65nv50_disp_chan_mthd(struct nv50_disp_chan *chan, int debug)
66{
67	struct nv50_disp *disp = chan->root->disp;
68	struct nvkm_subdev *subdev = &disp->base.engine.subdev;
69	const struct nv50_disp_chan_mthd *mthd = chan->mthd;
70	const struct nv50_disp_mthd_list *list;
71	int i, j;
72
73	if (debug > subdev->debug)
74		return;
75
76	for (i = 0; (list = mthd->data[i].mthd) != NULL; i++) {
77		u32 base = chan->head * mthd->addr;
78		for (j = 0; j < mthd->data[i].nr; j++, base += list->addr) {
79			const char *cname = mthd->name;
80			const char *sname = "";
81			char cname_[16], sname_[16];
82
83			if (mthd->addr) {
84				snprintf(cname_, sizeof(cname_), "%s %d",
85					 mthd->name, chan->chid);
86				cname = cname_;
87			}
88
89			if (mthd->data[i].nr > 1) {
90				snprintf(sname_, sizeof(sname_), " - %s %d",
91					 mthd->data[i].name, j);
92				sname = sname_;
93			}
94
95			nvkm_printk_(subdev, debug, info, "%s%s:\n", cname, sname);
96			nv50_disp_mthd_list(disp, debug, base, mthd->prev,
97					    list, j);
98		}
99	}
100}
101
102static void
103nv50_disp_chan_uevent_fini(struct nvkm_event *event, int type, int index)
104{
105	struct nv50_disp *disp = container_of(event, typeof(*disp), uevent);
106	struct nvkm_device *device = disp->base.engine.subdev.device;
107	nvkm_mask(device, 0x610028, 0x00000001 << index, 0x00000000 << index);
108	nvkm_wr32(device, 0x610020, 0x00000001 << index);
109}
110
111static void
112nv50_disp_chan_uevent_init(struct nvkm_event *event, int types, int index)
113{
114	struct nv50_disp *disp = container_of(event, typeof(*disp), uevent);
115	struct nvkm_device *device = disp->base.engine.subdev.device;
116	nvkm_wr32(device, 0x610020, 0x00000001 << index);
117	nvkm_mask(device, 0x610028, 0x00000001 << index, 0x00000001 << index);
118}
119
120void
121nv50_disp_chan_uevent_send(struct nv50_disp *disp, int chid)
122{
123	struct nvif_notify_uevent_rep {
124	} rep;
125
126	nvkm_event_send(&disp->uevent, 1, chid, &rep, sizeof(rep));
127}
128
129int
130nv50_disp_chan_uevent_ctor(struct nvkm_object *object, void *data, u32 size,
131			   struct nvkm_notify *notify)
132{
133	struct nv50_disp_chan *chan = nv50_disp_chan(object);
134	union {
135		struct nvif_notify_uevent_req none;
136	} *args = data;
137	int ret;
138
139	if (nvif_unvers(args->none)) {
140		notify->size  = sizeof(struct nvif_notify_uevent_rep);
141		notify->types = 1;
142		notify->index = chan->chid;
143		return 0;
144	}
145
146	return ret;
147}
148
149const struct nvkm_event_func
150nv50_disp_chan_uevent = {
151	.ctor = nv50_disp_chan_uevent_ctor,
152	.init = nv50_disp_chan_uevent_init,
153	.fini = nv50_disp_chan_uevent_fini,
154};
155
156int
157nv50_disp_chan_rd32(struct nvkm_object *object, u64 addr, u32 *data)
158{
159	struct nv50_disp_chan *chan = nv50_disp_chan(object);
160	struct nv50_disp *disp = chan->root->disp;
161	struct nvkm_device *device = disp->base.engine.subdev.device;
162	*data = nvkm_rd32(device, 0x640000 + (chan->chid * 0x1000) + addr);
163	return 0;
164}
165
166int
167nv50_disp_chan_wr32(struct nvkm_object *object, u64 addr, u32 data)
168{
169	struct nv50_disp_chan *chan = nv50_disp_chan(object);
170	struct nv50_disp *disp = chan->root->disp;
171	struct nvkm_device *device = disp->base.engine.subdev.device;
172	nvkm_wr32(device, 0x640000 + (chan->chid * 0x1000) + addr, data);
173	return 0;
174}
175
176int
177nv50_disp_chan_ntfy(struct nvkm_object *object, u32 type,
178		    struct nvkm_event **pevent)
179{
180	struct nv50_disp_chan *chan = nv50_disp_chan(object);
181	struct nv50_disp *disp = chan->root->disp;
182	switch (type) {
183	case NV50_DISP_CORE_CHANNEL_DMA_V0_NTFY_UEVENT:
184		*pevent = &disp->uevent;
185		return 0;
186	default:
187		break;
188	}
189	return -EINVAL;
190}
191
192int
193nv50_disp_chan_map(struct nvkm_object *object, u64 *addr, u32 *size)
194{
195	struct nv50_disp_chan *chan = nv50_disp_chan(object);
196	struct nv50_disp *disp = chan->root->disp;
197	struct nvkm_device *device = disp->base.engine.subdev.device;
198	*addr = device->func->resource_addr(device, 0) +
199		0x640000 + (chan->chid * 0x1000);
200	*size = 0x001000;
201	return 0;
202}
203
204static int
205nv50_disp_chan_child_new(const struct nvkm_oclass *oclass,
206			 void *data, u32 size, struct nvkm_object **pobject)
207{
208	struct nv50_disp_chan *chan = nv50_disp_chan(oclass->parent);
209	return chan->func->child_new(chan, oclass, data, size, pobject);
210}
211
212static int
213nv50_disp_chan_child_get(struct nvkm_object *object, int index,
214			 struct nvkm_oclass *oclass)
215{
216	struct nv50_disp_chan *chan = nv50_disp_chan(object);
217	if (chan->func->child_get) {
218		int ret = chan->func->child_get(chan, index, oclass);
219		if (ret == 0)
220			oclass->ctor = nv50_disp_chan_child_new;
221		return ret;
222	}
223	return -EINVAL;
224}
225
226static int
227nv50_disp_chan_fini(struct nvkm_object *object, bool suspend)
228{
229	struct nv50_disp_chan *chan = nv50_disp_chan(object);
230	chan->func->fini(chan);
231	return 0;
232}
233
234static int
235nv50_disp_chan_init(struct nvkm_object *object)
236{
237	struct nv50_disp_chan *chan = nv50_disp_chan(object);
238	return chan->func->init(chan);
239}
240
241static void *
242nv50_disp_chan_dtor(struct nvkm_object *object)
243{
244	struct nv50_disp_chan *chan = nv50_disp_chan(object);
245	struct nv50_disp *disp = chan->root->disp;
246	if (chan->chid >= 0)
247		disp->chan[chan->chid] = NULL;
248	return chan->func->dtor ? chan->func->dtor(chan) : chan;
249}
250
251static const struct nvkm_object_func
252nv50_disp_chan = {
253	.dtor = nv50_disp_chan_dtor,
254	.init = nv50_disp_chan_init,
255	.fini = nv50_disp_chan_fini,
256	.rd32 = nv50_disp_chan_rd32,
257	.wr32 = nv50_disp_chan_wr32,
258	.ntfy = nv50_disp_chan_ntfy,
259	.map = nv50_disp_chan_map,
260	.sclass = nv50_disp_chan_child_get,
261};
262
263int
264nv50_disp_chan_ctor(const struct nv50_disp_chan_func *func,
265		    const struct nv50_disp_chan_mthd *mthd,
266		    struct nv50_disp_root *root, int chid, int head,
267		    const struct nvkm_oclass *oclass,
268		    struct nv50_disp_chan *chan)
269{
270	struct nv50_disp *disp = root->disp;
271
272	nvkm_object_ctor(&nv50_disp_chan, oclass, &chan->object);
273	chan->func = func;
274	chan->mthd = mthd;
275	chan->root = root;
276	chan->chid = chid;
277	chan->head = head;
278
279	if (disp->chan[chan->chid]) {
280		chan->chid = -1;
281		return -EBUSY;
282	}
283	disp->chan[chan->chid] = chan;
284	return 0;
285}
286
287int
288nv50_disp_chan_new_(const struct nv50_disp_chan_func *func,
289		    const struct nv50_disp_chan_mthd *mthd,
290		    struct nv50_disp_root *root, int chid, int head,
291		    const struct nvkm_oclass *oclass,
292		    struct nvkm_object **pobject)
293{
294	struct nv50_disp_chan *chan;
295
296	if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
297		return -ENOMEM;
298	*pobject = &chan->object;
299
300	return nv50_disp_chan_ctor(func, mthd, root, chid, head, oclass, chan);
301}
302