2 * Copyright (C) 2007 Ben Skeggs.
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 #include "nouveau_drv.h"
31 #define NV04_RAMFC(c) (dev_priv->ramfc_offset + ((c) * NV04_RAMFC__SIZE))
32 #define NV04_RAMFC__SIZE 32
33 #define NV04_RAMFC_DMA_PUT 0x00
34 #define NV04_RAMFC_DMA_GET 0x04
35 #define NV04_RAMFC_DMA_INSTANCE 0x08
36 #define NV04_RAMFC_DMA_STATE 0x0C
37 #define NV04_RAMFC_DMA_FETCH 0x10
38 #define NV04_RAMFC_ENGINE 0x14
39 #define NV04_RAMFC_PULL1_ENGINE 0x18
41 #define RAMFC_WR(offset, val) nv_wo32(dev, chan->ramfc->gpuobj, \
42 NV04_RAMFC_##offset/4, (val))
43 #define RAMFC_RD(offset) nv_ro32(dev, chan->ramfc->gpuobj, \
44 NV04_RAMFC_##offset/4)
47 nv04_fifo_disable(struct drm_device *dev)
51 tmp = nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_PUSH);
52 nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_PUSH, tmp & ~1);
53 nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH0, 0);
54 tmp = nv_rd32(dev, NV03_PFIFO_CACHE1_PULL1);
55 nv_wr32(dev, NV04_PFIFO_CACHE1_PULL0, tmp & ~1);
59 nv04_fifo_enable(struct drm_device *dev)
61 nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH0, 1);
62 nv_wr32(dev, NV04_PFIFO_CACHE1_PULL0, 1);
66 nv04_fifo_reassign(struct drm_device *dev, bool enable)
68 uint32_t reassign = nv_rd32(dev, NV03_PFIFO_CACHES);
70 nv_wr32(dev, NV03_PFIFO_CACHES, enable ? 1 : 0);
71 return (reassign == 1);
75 nv04_fifo_cache_flush(struct drm_device *dev)
77 struct drm_nouveau_private *dev_priv = dev->dev_private;
78 struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
79 uint64_t start = ptimer->read(dev);
82 if (nv_rd32(dev, NV03_PFIFO_CACHE1_GET) ==
83 nv_rd32(dev, NV03_PFIFO_CACHE1_PUT))
86 } while (ptimer->read(dev) - start < 100000000);
88 NV_ERROR(dev, "Timeout flushing the PFIFO cache.\n");
94 nv04_fifo_cache_pull(struct drm_device *dev, bool enable)
96 uint32_t pull = nv_rd32(dev, NV04_PFIFO_CACHE1_PULL0);
99 nv_wr32(dev, NV04_PFIFO_CACHE1_PULL0, pull | 1);
101 nv_wr32(dev, NV04_PFIFO_CACHE1_PULL0, pull & ~1);
102 nv_wr32(dev, NV04_PFIFO_CACHE1_HASH, 0);
109 nv04_fifo_channel_id(struct drm_device *dev)
111 return nv_rd32(dev, NV03_PFIFO_CACHE1_PUSH1) &
112 NV03_PFIFO_CACHE1_PUSH1_CHID_MASK;
116 #define DMA_FETCH_ENDIANNESS NV_PFIFO_CACHE1_BIG_ENDIAN
118 #define DMA_FETCH_ENDIANNESS 0
122 nv04_fifo_create_context(struct nouveau_channel *chan)
124 struct drm_device *dev = chan->dev;
125 struct drm_nouveau_private *dev_priv = dev->dev_private;
129 ret = nouveau_gpuobj_new_fake(dev, NV04_RAMFC(chan->id), ~0,
131 NVOBJ_FLAG_ZERO_ALLOC |
132 NVOBJ_FLAG_ZERO_FREE,
137 spin_lock_irqsave(&dev_priv->context_switch_lock, flags);
139 /* Setup initial state */
140 RAMFC_WR(DMA_PUT, chan->pushbuf_base);
141 RAMFC_WR(DMA_GET, chan->pushbuf_base);
142 RAMFC_WR(DMA_INSTANCE, chan->pushbuf->instance >> 4);
143 RAMFC_WR(DMA_FETCH, (NV_PFIFO_CACHE1_DMA_FETCH_TRIG_128_BYTES |
144 NV_PFIFO_CACHE1_DMA_FETCH_SIZE_128_BYTES |
145 NV_PFIFO_CACHE1_DMA_FETCH_MAX_REQS_8 |
146 DMA_FETCH_ENDIANNESS));
148 /* enable the fifo dma operation */
149 nv_wr32(dev, NV04_PFIFO_MODE,
150 nv_rd32(dev, NV04_PFIFO_MODE) | (1 << chan->id));
152 spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags);
157 nv04_fifo_destroy_context(struct nouveau_channel *chan)
159 struct drm_device *dev = chan->dev;
161 nv_wr32(dev, NV04_PFIFO_MODE,
162 nv_rd32(dev, NV04_PFIFO_MODE) & ~(1 << chan->id));
164 nouveau_gpuobj_ref_del(dev, &chan->ramfc);
168 nv04_fifo_do_load_context(struct drm_device *dev, int chid)
170 struct drm_nouveau_private *dev_priv = dev->dev_private;
171 uint32_t fc = NV04_RAMFC(chid), tmp;
173 nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_PUT, nv_ri32(dev, fc + 0));
174 nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_GET, nv_ri32(dev, fc + 4));
175 tmp = nv_ri32(dev, fc + 8);
176 nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_INSTANCE, tmp & 0xFFFF);
177 nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_DCOUNT, tmp >> 16);
178 nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_STATE, nv_ri32(dev, fc + 12));
179 nv_wr32(dev, NV04_PFIFO_CACHE1_DMA_FETCH, nv_ri32(dev, fc + 16));
180 nv_wr32(dev, NV04_PFIFO_CACHE1_ENGINE, nv_ri32(dev, fc + 20));
181 nv_wr32(dev, NV04_PFIFO_CACHE1_PULL1, nv_ri32(dev, fc + 24));
183 nv_wr32(dev, NV03_PFIFO_CACHE1_GET, 0);
184 nv_wr32(dev, NV03_PFIFO_CACHE1_PUT, 0);
188 nv04_fifo_load_context(struct nouveau_channel *chan)
192 nv_wr32(chan->dev, NV03_PFIFO_CACHE1_PUSH1,
193 NV03_PFIFO_CACHE1_PUSH1_DMA | chan->id);
194 nv04_fifo_do_load_context(chan->dev, chan->id);
195 nv_wr32(chan->dev, NV04_PFIFO_CACHE1_DMA_PUSH, 1);
197 /* Reset NV04_PFIFO_CACHE1_DMA_CTL_AT_INFO to INVALID */
198 tmp = nv_rd32(chan->dev, NV04_PFIFO_CACHE1_DMA_CTL) & ~(1 << 31);
199 nv_wr32(chan->dev, NV04_PFIFO_CACHE1_DMA_CTL, tmp);
205 nv04_fifo_unload_context(struct drm_device *dev)
207 struct drm_nouveau_private *dev_priv = dev->dev_private;
208 struct nouveau_fifo_engine *pfifo = &dev_priv->engine.fifo;
209 struct nouveau_channel *chan = NULL;
213 chid = pfifo->channel_id(dev);
214 if (chid < 0 || chid >= dev_priv->engine.fifo.channels)
217 chan = dev_priv->fifos[chid];
219 NV_ERROR(dev, "Inactive channel on PFIFO: %d\n", chid);
223 RAMFC_WR(DMA_PUT, nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_PUT));
224 RAMFC_WR(DMA_GET, nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_GET));
225 tmp = nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_DCOUNT) << 16;
226 tmp |= nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_INSTANCE);
227 RAMFC_WR(DMA_INSTANCE, tmp);
228 RAMFC_WR(DMA_STATE, nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_STATE));
229 RAMFC_WR(DMA_FETCH, nv_rd32(dev, NV04_PFIFO_CACHE1_DMA_FETCH));
230 RAMFC_WR(ENGINE, nv_rd32(dev, NV04_PFIFO_CACHE1_ENGINE));
231 RAMFC_WR(PULL1_ENGINE, nv_rd32(dev, NV04_PFIFO_CACHE1_PULL1));
233 nv04_fifo_do_load_context(dev, pfifo->channels - 1);
234 nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH1, pfifo->channels - 1);
239 nv04_fifo_init_reset(struct drm_device *dev)
241 nv_wr32(dev, NV03_PMC_ENABLE,
242 nv_rd32(dev, NV03_PMC_ENABLE) & ~NV_PMC_ENABLE_PFIFO);
243 nv_wr32(dev, NV03_PMC_ENABLE,
244 nv_rd32(dev, NV03_PMC_ENABLE) | NV_PMC_ENABLE_PFIFO);
246 nv_wr32(dev, 0x003224, 0x000f0078);
247 nv_wr32(dev, 0x002044, 0x0101ffff);
248 nv_wr32(dev, 0x002040, 0x000000ff);
249 nv_wr32(dev, 0x002500, 0x00000000);
250 nv_wr32(dev, 0x003000, 0x00000000);
251 nv_wr32(dev, 0x003050, 0x00000000);
252 nv_wr32(dev, 0x003200, 0x00000000);
253 nv_wr32(dev, 0x003250, 0x00000000);
254 nv_wr32(dev, 0x003220, 0x00000000);
256 nv_wr32(dev, 0x003250, 0x00000000);
257 nv_wr32(dev, 0x003270, 0x00000000);
258 nv_wr32(dev, 0x003210, 0x00000000);
262 nv04_fifo_init_ramxx(struct drm_device *dev)
264 struct drm_nouveau_private *dev_priv = dev->dev_private;
266 nv_wr32(dev, NV03_PFIFO_RAMHT, (0x03 << 24) /* search 128 */ |
267 ((dev_priv->ramht_bits - 9) << 16) |
268 (dev_priv->ramht_offset >> 8));
269 nv_wr32(dev, NV03_PFIFO_RAMRO, dev_priv->ramro_offset>>8);
270 nv_wr32(dev, NV03_PFIFO_RAMFC, dev_priv->ramfc_offset >> 8);
274 nv04_fifo_init_intr(struct drm_device *dev)
276 nv_wr32(dev, 0x002100, 0xffffffff);
277 nv_wr32(dev, 0x002140, 0xffffffff);
281 nv04_fifo_init(struct drm_device *dev)
283 struct drm_nouveau_private *dev_priv = dev->dev_private;
284 struct nouveau_fifo_engine *pfifo = &dev_priv->engine.fifo;
287 nv04_fifo_init_reset(dev);
288 nv04_fifo_init_ramxx(dev);
290 nv04_fifo_do_load_context(dev, pfifo->channels - 1);
291 nv_wr32(dev, NV03_PFIFO_CACHE1_PUSH1, pfifo->channels - 1);
293 nv04_fifo_init_intr(dev);
295 pfifo->reassign(dev, true);
297 for (i = 0; i < dev_priv->engine.fifo.channels; i++) {
298 if (dev_priv->fifos[i]) {
299 uint32_t mode = nv_rd32(dev, NV04_PFIFO_MODE);
300 nv_wr32(dev, NV04_PFIFO_MODE, mode | (1 << i));