1*677dec6eSriastradh /* $NetBSD: nouveau_nvkm_engine_mpeg_nv31.c,v 1.3 2021/12/18 23:45:36 riastradh Exp $ */
2d350ecf5Sriastradh
3d350ecf5Sriastradh /*
4d350ecf5Sriastradh * Copyright 2012 Red Hat Inc.
5d350ecf5Sriastradh *
6d350ecf5Sriastradh * Permission is hereby granted, free of charge, to any person obtaining a
7d350ecf5Sriastradh * copy of this software and associated documentation files (the "Software"),
8d350ecf5Sriastradh * to deal in the Software without restriction, including without limitation
9d350ecf5Sriastradh * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10d350ecf5Sriastradh * and/or sell copies of the Software, and to permit persons to whom the
11d350ecf5Sriastradh * Software is furnished to do so, subject to the following conditions:
12d350ecf5Sriastradh *
13d350ecf5Sriastradh * The above copyright notice and this permission notice shall be included in
14d350ecf5Sriastradh * all copies or substantial portions of the Software.
15d350ecf5Sriastradh *
16d350ecf5Sriastradh * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17d350ecf5Sriastradh * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18d350ecf5Sriastradh * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19d350ecf5Sriastradh * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20d350ecf5Sriastradh * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21d350ecf5Sriastradh * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22d350ecf5Sriastradh * OTHER DEALINGS IN THE SOFTWARE.
23d350ecf5Sriastradh *
24d350ecf5Sriastradh * Authors: Ben Skeggs
25d350ecf5Sriastradh */
26d350ecf5Sriastradh #include <sys/cdefs.h>
27*677dec6eSriastradh __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_engine_mpeg_nv31.c,v 1.3 2021/12/18 23:45:36 riastradh Exp $");
28d350ecf5Sriastradh
29d350ecf5Sriastradh #include "nv31.h"
30d350ecf5Sriastradh
31d350ecf5Sriastradh #include <core/client.h>
32d350ecf5Sriastradh #include <core/gpuobj.h>
33d350ecf5Sriastradh #include <subdev/fb.h>
34d350ecf5Sriastradh #include <subdev/timer.h>
35d350ecf5Sriastradh #include <engine/fifo.h>
36d350ecf5Sriastradh
37d350ecf5Sriastradh #include <nvif/class.h>
38d350ecf5Sriastradh
39d350ecf5Sriastradh /*******************************************************************************
40d350ecf5Sriastradh * MPEG object classes
41d350ecf5Sriastradh ******************************************************************************/
42d350ecf5Sriastradh
43d350ecf5Sriastradh static int
nv31_mpeg_object_bind(struct nvkm_object * object,struct nvkm_gpuobj * parent,int align,struct nvkm_gpuobj ** pgpuobj)44d350ecf5Sriastradh nv31_mpeg_object_bind(struct nvkm_object *object, struct nvkm_gpuobj *parent,
45d350ecf5Sriastradh int align, struct nvkm_gpuobj **pgpuobj)
46d350ecf5Sriastradh {
47d350ecf5Sriastradh int ret = nvkm_gpuobj_new(object->engine->subdev.device, 16, align,
48d350ecf5Sriastradh false, parent, pgpuobj);
49d350ecf5Sriastradh if (ret == 0) {
50d350ecf5Sriastradh nvkm_kmap(*pgpuobj);
51d350ecf5Sriastradh nvkm_wo32(*pgpuobj, 0x00, object->oclass);
52d350ecf5Sriastradh nvkm_wo32(*pgpuobj, 0x04, 0x00000000);
53d350ecf5Sriastradh nvkm_wo32(*pgpuobj, 0x08, 0x00000000);
54d350ecf5Sriastradh nvkm_wo32(*pgpuobj, 0x0c, 0x00000000);
55d350ecf5Sriastradh nvkm_done(*pgpuobj);
56d350ecf5Sriastradh }
57d350ecf5Sriastradh return ret;
58d350ecf5Sriastradh }
59d350ecf5Sriastradh
60d350ecf5Sriastradh const struct nvkm_object_func
61d350ecf5Sriastradh nv31_mpeg_object = {
62d350ecf5Sriastradh .bind = nv31_mpeg_object_bind,
63d350ecf5Sriastradh };
64d350ecf5Sriastradh
65d350ecf5Sriastradh /*******************************************************************************
66d350ecf5Sriastradh * PMPEG context
67d350ecf5Sriastradh ******************************************************************************/
68d350ecf5Sriastradh
69d350ecf5Sriastradh static void *
nv31_mpeg_chan_dtor(struct nvkm_object * object)70d350ecf5Sriastradh nv31_mpeg_chan_dtor(struct nvkm_object *object)
71d350ecf5Sriastradh {
72d350ecf5Sriastradh struct nv31_mpeg_chan *chan = nv31_mpeg_chan(object);
73d350ecf5Sriastradh struct nv31_mpeg *mpeg = chan->mpeg;
74d350ecf5Sriastradh unsigned long flags;
75d350ecf5Sriastradh
76d350ecf5Sriastradh spin_lock_irqsave(&mpeg->engine.lock, flags);
77d350ecf5Sriastradh if (mpeg->chan == chan)
78d350ecf5Sriastradh mpeg->chan = NULL;
79d350ecf5Sriastradh spin_unlock_irqrestore(&mpeg->engine.lock, flags);
80d350ecf5Sriastradh return chan;
81d350ecf5Sriastradh }
82d350ecf5Sriastradh
83d350ecf5Sriastradh static const struct nvkm_object_func
84d350ecf5Sriastradh nv31_mpeg_chan = {
85d350ecf5Sriastradh .dtor = nv31_mpeg_chan_dtor,
86d350ecf5Sriastradh };
87d350ecf5Sriastradh
88d350ecf5Sriastradh int
nv31_mpeg_chan_new(struct nvkm_fifo_chan * fifoch,const struct nvkm_oclass * oclass,struct nvkm_object ** pobject)89d350ecf5Sriastradh nv31_mpeg_chan_new(struct nvkm_fifo_chan *fifoch,
90d350ecf5Sriastradh const struct nvkm_oclass *oclass,
91d350ecf5Sriastradh struct nvkm_object **pobject)
92d350ecf5Sriastradh {
93d350ecf5Sriastradh struct nv31_mpeg *mpeg = nv31_mpeg(oclass->engine);
94d350ecf5Sriastradh struct nv31_mpeg_chan *chan;
95d350ecf5Sriastradh unsigned long flags;
96d350ecf5Sriastradh int ret = -EBUSY;
97d350ecf5Sriastradh
98d350ecf5Sriastradh if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
99d350ecf5Sriastradh return -ENOMEM;
100d350ecf5Sriastradh nvkm_object_ctor(&nv31_mpeg_chan, oclass, &chan->object);
101d350ecf5Sriastradh chan->mpeg = mpeg;
102d350ecf5Sriastradh chan->fifo = fifoch;
103d350ecf5Sriastradh *pobject = &chan->object;
104d350ecf5Sriastradh
105d350ecf5Sriastradh spin_lock_irqsave(&mpeg->engine.lock, flags);
106d350ecf5Sriastradh if (!mpeg->chan) {
107d350ecf5Sriastradh mpeg->chan = chan;
108d350ecf5Sriastradh ret = 0;
109d350ecf5Sriastradh }
110d350ecf5Sriastradh spin_unlock_irqrestore(&mpeg->engine.lock, flags);
111d350ecf5Sriastradh return ret;
112d350ecf5Sriastradh }
113d350ecf5Sriastradh
114d350ecf5Sriastradh /*******************************************************************************
115d350ecf5Sriastradh * PMPEG engine/subdev functions
116d350ecf5Sriastradh ******************************************************************************/
117d350ecf5Sriastradh
118d350ecf5Sriastradh void
nv31_mpeg_tile(struct nvkm_engine * engine,int i,struct nvkm_fb_tile * tile)119d350ecf5Sriastradh nv31_mpeg_tile(struct nvkm_engine *engine, int i, struct nvkm_fb_tile *tile)
120d350ecf5Sriastradh {
121d350ecf5Sriastradh struct nv31_mpeg *mpeg = nv31_mpeg(engine);
122d350ecf5Sriastradh struct nvkm_device *device = mpeg->engine.subdev.device;
123d350ecf5Sriastradh
124d350ecf5Sriastradh nvkm_wr32(device, 0x00b008 + (i * 0x10), tile->pitch);
125d350ecf5Sriastradh nvkm_wr32(device, 0x00b004 + (i * 0x10), tile->limit);
126d350ecf5Sriastradh nvkm_wr32(device, 0x00b000 + (i * 0x10), tile->addr);
127d350ecf5Sriastradh }
128d350ecf5Sriastradh
129d350ecf5Sriastradh static bool
nv31_mpeg_mthd_dma(struct nvkm_device * device,u32 mthd,u32 data)130d350ecf5Sriastradh nv31_mpeg_mthd_dma(struct nvkm_device *device, u32 mthd, u32 data)
131d350ecf5Sriastradh {
132*677dec6eSriastradh struct nv31_mpeg *mpeg = nv31_mpeg(device->mpeg);
133*677dec6eSriastradh struct nvkm_subdev *subdev = &mpeg->engine.subdev;
134d350ecf5Sriastradh u32 inst = data << 4;
135d350ecf5Sriastradh u32 dma0 = nvkm_rd32(device, 0x700000 + inst);
136d350ecf5Sriastradh u32 dma1 = nvkm_rd32(device, 0x700004 + inst);
137d350ecf5Sriastradh u32 dma2 = nvkm_rd32(device, 0x700008 + inst);
138d350ecf5Sriastradh u32 base = (dma2 & 0xfffff000) | (dma0 >> 20);
139d350ecf5Sriastradh u32 size = dma1 + 1;
140d350ecf5Sriastradh
141d350ecf5Sriastradh /* only allow linear DMA objects */
142*677dec6eSriastradh if (!(dma0 & 0x00002000)) {
143*677dec6eSriastradh nvkm_error(subdev, "inst %08x dma0 %08x dma1 %08x dma2 %08x\n",
144*677dec6eSriastradh inst, dma0, dma1, dma2);
145d350ecf5Sriastradh return false;
146*677dec6eSriastradh }
147d350ecf5Sriastradh
148d350ecf5Sriastradh if (mthd == 0x0190) {
149d350ecf5Sriastradh /* DMA_CMD */
150d350ecf5Sriastradh nvkm_mask(device, 0x00b300, 0x00010000,
151d350ecf5Sriastradh (dma0 & 0x00030000) ? 0x00010000 : 0);
152d350ecf5Sriastradh nvkm_wr32(device, 0x00b334, base);
153d350ecf5Sriastradh nvkm_wr32(device, 0x00b324, size);
154d350ecf5Sriastradh } else
155d350ecf5Sriastradh if (mthd == 0x01a0) {
156d350ecf5Sriastradh /* DMA_DATA */
157d350ecf5Sriastradh nvkm_mask(device, 0x00b300, 0x00020000,
158d350ecf5Sriastradh (dma0 & 0x00030000) ? 0x00020000 : 0);
159d350ecf5Sriastradh nvkm_wr32(device, 0x00b360, base);
160d350ecf5Sriastradh nvkm_wr32(device, 0x00b364, size);
161d350ecf5Sriastradh } else {
162d350ecf5Sriastradh /* DMA_IMAGE, VRAM only */
163d350ecf5Sriastradh if (dma0 & 0x00030000)
164d350ecf5Sriastradh return false;
165d350ecf5Sriastradh
166d350ecf5Sriastradh nvkm_wr32(device, 0x00b370, base);
167d350ecf5Sriastradh nvkm_wr32(device, 0x00b374, size);
168d350ecf5Sriastradh }
169d350ecf5Sriastradh
170d350ecf5Sriastradh return true;
171d350ecf5Sriastradh }
172d350ecf5Sriastradh
173d350ecf5Sriastradh static bool
nv31_mpeg_mthd(struct nv31_mpeg * mpeg,u32 mthd,u32 data)174d350ecf5Sriastradh nv31_mpeg_mthd(struct nv31_mpeg *mpeg, u32 mthd, u32 data)
175d350ecf5Sriastradh {
176d350ecf5Sriastradh struct nvkm_device *device = mpeg->engine.subdev.device;
177d350ecf5Sriastradh switch (mthd) {
178d350ecf5Sriastradh case 0x190:
179d350ecf5Sriastradh case 0x1a0:
180d350ecf5Sriastradh case 0x1b0:
181d350ecf5Sriastradh return mpeg->func->mthd_dma(device, mthd, data);
182d350ecf5Sriastradh default:
183d350ecf5Sriastradh break;
184d350ecf5Sriastradh }
185d350ecf5Sriastradh return false;
186d350ecf5Sriastradh }
187d350ecf5Sriastradh
188d350ecf5Sriastradh static void
nv31_mpeg_intr(struct nvkm_engine * engine)189d350ecf5Sriastradh nv31_mpeg_intr(struct nvkm_engine *engine)
190d350ecf5Sriastradh {
191d350ecf5Sriastradh struct nv31_mpeg *mpeg = nv31_mpeg(engine);
192d350ecf5Sriastradh struct nvkm_subdev *subdev = &mpeg->engine.subdev;
193d350ecf5Sriastradh struct nvkm_device *device = subdev->device;
194d350ecf5Sriastradh u32 stat = nvkm_rd32(device, 0x00b100);
195d350ecf5Sriastradh u32 type = nvkm_rd32(device, 0x00b230);
196d350ecf5Sriastradh u32 mthd = nvkm_rd32(device, 0x00b234);
197d350ecf5Sriastradh u32 data = nvkm_rd32(device, 0x00b238);
198d350ecf5Sriastradh u32 show = stat;
199d350ecf5Sriastradh unsigned long flags;
200d350ecf5Sriastradh
201d350ecf5Sriastradh spin_lock_irqsave(&mpeg->engine.lock, flags);
202d350ecf5Sriastradh
203d350ecf5Sriastradh if (stat & 0x01000000) {
204d350ecf5Sriastradh /* happens on initial binding of the object */
205d350ecf5Sriastradh if (type == 0x00000020 && mthd == 0x0000) {
206d350ecf5Sriastradh nvkm_mask(device, 0x00b308, 0x00000000, 0x00000000);
207d350ecf5Sriastradh show &= ~0x01000000;
208d350ecf5Sriastradh }
209d350ecf5Sriastradh
210d350ecf5Sriastradh if (type == 0x00000010) {
211d350ecf5Sriastradh if (nv31_mpeg_mthd(mpeg, mthd, data))
212d350ecf5Sriastradh show &= ~0x01000000;
213d350ecf5Sriastradh }
214d350ecf5Sriastradh }
215d350ecf5Sriastradh
216d350ecf5Sriastradh nvkm_wr32(device, 0x00b100, stat);
217d350ecf5Sriastradh nvkm_wr32(device, 0x00b230, 0x00000001);
218d350ecf5Sriastradh
219d350ecf5Sriastradh if (show) {
220d350ecf5Sriastradh nvkm_error(subdev, "ch %d [%s] %08x %08x %08x %08x\n",
221d350ecf5Sriastradh mpeg->chan ? mpeg->chan->fifo->chid : -1,
222d350ecf5Sriastradh mpeg->chan ? mpeg->chan->object.client->name :
223d350ecf5Sriastradh "unknown", stat, type, mthd, data);
224d350ecf5Sriastradh }
225d350ecf5Sriastradh
226d350ecf5Sriastradh spin_unlock_irqrestore(&mpeg->engine.lock, flags);
227d350ecf5Sriastradh }
228d350ecf5Sriastradh
229d350ecf5Sriastradh int
nv31_mpeg_init(struct nvkm_engine * mpeg)230d350ecf5Sriastradh nv31_mpeg_init(struct nvkm_engine *mpeg)
231d350ecf5Sriastradh {
232d350ecf5Sriastradh struct nvkm_subdev *subdev = &mpeg->subdev;
233d350ecf5Sriastradh struct nvkm_device *device = subdev->device;
234d350ecf5Sriastradh
235d350ecf5Sriastradh /* VPE init */
236d350ecf5Sriastradh nvkm_wr32(device, 0x00b0e0, 0x00000020); /* nvidia: rd 0x01, wr 0x20 */
237d350ecf5Sriastradh nvkm_wr32(device, 0x00b0e8, 0x00000020); /* nvidia: rd 0x01, wr 0x20 */
238d350ecf5Sriastradh
239d350ecf5Sriastradh /* PMPEG init */
240d350ecf5Sriastradh nvkm_wr32(device, 0x00b32c, 0x00000000);
241d350ecf5Sriastradh nvkm_wr32(device, 0x00b314, 0x00000100);
242d350ecf5Sriastradh nvkm_wr32(device, 0x00b220, 0x00000031);
243d350ecf5Sriastradh nvkm_wr32(device, 0x00b300, 0x02001ec1);
244d350ecf5Sriastradh nvkm_mask(device, 0x00b32c, 0x00000001, 0x00000001);
245d350ecf5Sriastradh
246d350ecf5Sriastradh nvkm_wr32(device, 0x00b100, 0xffffffff);
247d350ecf5Sriastradh nvkm_wr32(device, 0x00b140, 0xffffffff);
248d350ecf5Sriastradh
249d350ecf5Sriastradh if (nvkm_msec(device, 2000,
250d350ecf5Sriastradh if (!(nvkm_rd32(device, 0x00b200) & 0x00000001))
251d350ecf5Sriastradh break;
252d350ecf5Sriastradh ) < 0) {
253d350ecf5Sriastradh nvkm_error(subdev, "timeout %08x\n",
254d350ecf5Sriastradh nvkm_rd32(device, 0x00b200));
255d350ecf5Sriastradh return -EBUSY;
256d350ecf5Sriastradh }
257d350ecf5Sriastradh
258d350ecf5Sriastradh return 0;
259d350ecf5Sriastradh }
260d350ecf5Sriastradh
261d350ecf5Sriastradh static void *
nv31_mpeg_dtor(struct nvkm_engine * engine)262d350ecf5Sriastradh nv31_mpeg_dtor(struct nvkm_engine *engine)
263d350ecf5Sriastradh {
264d350ecf5Sriastradh return nv31_mpeg(engine);
265d350ecf5Sriastradh }
266d350ecf5Sriastradh
267d350ecf5Sriastradh static const struct nvkm_engine_func
268d350ecf5Sriastradh nv31_mpeg_ = {
269d350ecf5Sriastradh .dtor = nv31_mpeg_dtor,
270d350ecf5Sriastradh .init = nv31_mpeg_init,
271d350ecf5Sriastradh .intr = nv31_mpeg_intr,
272d350ecf5Sriastradh .tile = nv31_mpeg_tile,
273d350ecf5Sriastradh .fifo.cclass = nv31_mpeg_chan_new,
274d350ecf5Sriastradh .sclass = {
275d350ecf5Sriastradh { -1, -1, NV31_MPEG, &nv31_mpeg_object },
276d350ecf5Sriastradh {}
277d350ecf5Sriastradh }
278d350ecf5Sriastradh };
279d350ecf5Sriastradh
280d350ecf5Sriastradh int
nv31_mpeg_new_(const struct nv31_mpeg_func * func,struct nvkm_device * device,int index,struct nvkm_engine ** pmpeg)281d350ecf5Sriastradh nv31_mpeg_new_(const struct nv31_mpeg_func *func, struct nvkm_device *device,
282d350ecf5Sriastradh int index, struct nvkm_engine **pmpeg)
283d350ecf5Sriastradh {
284d350ecf5Sriastradh struct nv31_mpeg *mpeg;
285d350ecf5Sriastradh
286d350ecf5Sriastradh if (!(mpeg = kzalloc(sizeof(*mpeg), GFP_KERNEL)))
287d350ecf5Sriastradh return -ENOMEM;
288d350ecf5Sriastradh mpeg->func = func;
289d350ecf5Sriastradh *pmpeg = &mpeg->engine;
290d350ecf5Sriastradh
291*677dec6eSriastradh return nvkm_engine_ctor(&nv31_mpeg_, device, index,
292d350ecf5Sriastradh true, &mpeg->engine);
293d350ecf5Sriastradh }
294d350ecf5Sriastradh
295d350ecf5Sriastradh static const struct nv31_mpeg_func
296d350ecf5Sriastradh nv31_mpeg = {
297d350ecf5Sriastradh .mthd_dma = nv31_mpeg_mthd_dma,
298d350ecf5Sriastradh };
299d350ecf5Sriastradh
300d350ecf5Sriastradh int
nv31_mpeg_new(struct nvkm_device * device,int index,struct nvkm_engine ** pmpeg)301d350ecf5Sriastradh nv31_mpeg_new(struct nvkm_device *device, int index, struct nvkm_engine **pmpeg)
302d350ecf5Sriastradh {
303d350ecf5Sriastradh return nv31_mpeg_new_(&nv31_mpeg, device, index, pmpeg);
304d350ecf5Sriastradh }
305