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.
28 #include "nouveau_drv.h"
29 #include "nouveau_drm.h"
31 #define RAMFC_WR(offset, val) NV_WRITE(fifoctx + NV40_RAMFC_##offset, (val))
32 #define RAMFC_RD(offset) NV_READ (fifoctx + NV40_RAMFC_##offset)
35 nv40_fifo_create_context(drm_device_t *dev, int channel)
37 drm_nouveau_private_t *dev_priv = dev->dev_private;
38 struct nouveau_fifo *chan = &dev_priv->fifos[channel];
39 uint32_t fifoctx, grctx, pushbuf;
42 fifoctx = NV_RAMIN + dev_priv->ramfc_offset + channel*128;
44 NV_WRITE(fifoctx + i, 0);
46 grctx = nouveau_chip_instance_get(dev, chan->ramin_grctx);
47 pushbuf = nouveau_chip_instance_get(dev, chan->cmdbuf_obj->instance);
49 /* Fill entries that are seen filled in dumps of nvidia driver just
50 * after channel's is put into DMA mode
52 RAMFC_WR(DMA_PUT , chan->pushbuf_base);
53 RAMFC_WR(DMA_GET , chan->pushbuf_base);
54 RAMFC_WR(DMA_INSTANCE , pushbuf);
55 RAMFC_WR(DMA_FETCH , NV_PFIFO_CACHE1_DMA_FETCH_TRIG_128_BYTES |
56 NV_PFIFO_CACHE1_DMA_FETCH_SIZE_128_BYTES |
57 NV_PFIFO_CACHE1_DMA_FETCH_MAX_REQS_8 |
59 NV_PFIFO_CACHE1_BIG_ENDIAN |
61 0x30000000 /* no idea.. */);
62 RAMFC_WR(DMA_SUBROUTINE, 0);
63 RAMFC_WR(GRCTX_INSTANCE, grctx);
64 RAMFC_WR(DMA_TIMESLICE , 0x0001FFFF);
70 nv40_fifo_destroy_context(drm_device_t *dev, int channel)
72 drm_nouveau_private_t *dev_priv = dev->dev_private;
76 fifoctx = NV_RAMIN + dev_priv->ramfc_offset + channel*128;
78 NV_WRITE(fifoctx + i, 0);
82 nv40_fifo_load_context(drm_device_t *dev, int channel)
84 drm_nouveau_private_t *dev_priv = dev->dev_private;
88 fifoctx = NV_RAMIN + dev_priv->ramfc_offset + channel*128;
90 NV_WRITE(NV04_PFIFO_CACHE1_DMA_GET , RAMFC_RD(DMA_GET));
91 NV_WRITE(NV04_PFIFO_CACHE1_DMA_PUT , RAMFC_RD(DMA_PUT));
92 NV_WRITE(NV10_PFIFO_CACHE1_REF_CNT , RAMFC_RD(REF_CNT));
93 NV_WRITE(NV04_PFIFO_CACHE1_DMA_INSTANCE , RAMFC_RD(DMA_INSTANCE));
94 NV_WRITE(NV10_PFIFO_CACHE1_DMA_DCOUNT , RAMFC_RD(DMA_DCOUNT));
95 NV_WRITE(NV04_PFIFO_CACHE1_DMA_STATE , RAMFC_RD(DMA_STATE));
97 /* No idea what 0x2058 is.. */
98 tmp = RAMFC_RD(DMA_FETCH);
99 tmp2 = NV_READ(0x2058) & 0xFFF;
100 tmp2 |= (tmp & 0x30000000);
101 NV_WRITE(0x2058, tmp2);
103 NV_WRITE(NV04_PFIFO_CACHE1_DMA_FETCH , tmp);
105 NV_WRITE(NV04_PFIFO_CACHE1_ENGINE , RAMFC_RD(ENGINE));
106 NV_WRITE(NV04_PFIFO_CACHE1_PULL1 , RAMFC_RD(PULL1_ENGINE));
107 NV_WRITE(NV10_PFIFO_CACHE1_ACQUIRE_VALUE , RAMFC_RD(ACQUIRE_VALUE));
108 NV_WRITE(NV10_PFIFO_CACHE1_ACQUIRE_TIMESTAMP, RAMFC_RD(ACQUIRE_TIMESTAMP));
109 NV_WRITE(NV10_PFIFO_CACHE1_ACQUIRE_TIMEOUT , RAMFC_RD(ACQUIRE_TIMEOUT));
110 NV_WRITE(NV10_PFIFO_CACHE1_SEMAPHORE , RAMFC_RD(SEMAPHORE));
111 NV_WRITE(NV10_PFIFO_CACHE1_DMA_SUBROUTINE , RAMFC_RD(DMA_SUBROUTINE));
112 NV_WRITE(NV40_PFIFO_GRCTX_INSTANCE , RAMFC_RD(GRCTX_INSTANCE));
113 NV_WRITE(0x32e4, RAMFC_RD(UNK_40));
114 /* NVIDIA does this next line twice... */
115 NV_WRITE(0x32e8, RAMFC_RD(UNK_44));
116 NV_WRITE(0x2088, RAMFC_RD(UNK_4C));
117 NV_WRITE(0x3300, RAMFC_RD(UNK_50));
119 /* not sure what part is PUT, and which is GET.. never seen a non-zero
120 * value appear in a mmio-trace yet..
123 tmp = NV_READ(UNK_84);
124 NV_WRITE(NV_PFIFO_CACHE1_GET, tmp ???);
125 NV_WRITE(NV_PFIFO_CACHE1_PUT, tmp ???);
128 /* Don't clobber the TIMEOUT_ENABLED flag when restoring from RAMFC */
129 tmp = NV_READ(NV04_PFIFO_DMA_TIMESLICE) & ~0x1FFFF;
130 tmp |= RAMFC_RD(DMA_TIMESLICE) & 0x1FFFF;
131 NV_WRITE(NV04_PFIFO_DMA_TIMESLICE, tmp);
133 /* Set channel active, and in DMA mode */
134 NV_WRITE(NV03_PFIFO_CACHE1_PUSH1 , 0x00010000 | channel);
135 /* Reset DMA_CTL_AT_INFO to INVALID */
136 tmp = NV_READ(NV04_PFIFO_CACHE1_DMA_CTL) & ~(1<<31);
137 NV_WRITE(NV04_PFIFO_CACHE1_DMA_CTL, tmp);
143 nv40_fifo_save_context(drm_device_t *dev, int channel)
145 drm_nouveau_private_t *dev_priv = dev->dev_private;
149 fifoctx = NV_RAMIN + dev_priv->ramfc_offset + channel*128;
151 RAMFC_WR(DMA_PUT , NV_READ(NV04_PFIFO_CACHE1_DMA_PUT));
152 RAMFC_WR(DMA_GET , NV_READ(NV04_PFIFO_CACHE1_DMA_GET));
153 RAMFC_WR(REF_CNT , NV_READ(NV10_PFIFO_CACHE1_REF_CNT));
154 RAMFC_WR(DMA_INSTANCE , NV_READ(NV04_PFIFO_CACHE1_DMA_INSTANCE));
155 RAMFC_WR(DMA_DCOUNT , NV_READ(NV10_PFIFO_CACHE1_DMA_DCOUNT));
156 RAMFC_WR(DMA_STATE , NV_READ(NV04_PFIFO_CACHE1_DMA_STATE));
158 tmp = NV_READ(NV04_PFIFO_CACHE1_DMA_FETCH);
159 tmp |= NV_READ(0x2058) & 0x30000000;
160 RAMFC_WR(DMA_FETCH , tmp);
162 RAMFC_WR(ENGINE , NV_READ(NV04_PFIFO_CACHE1_ENGINE));
163 RAMFC_WR(PULL1_ENGINE , NV_READ(NV04_PFIFO_CACHE1_PULL1));
164 RAMFC_WR(ACQUIRE_VALUE , NV_READ(NV10_PFIFO_CACHE1_ACQUIRE_VALUE));
165 tmp = NV_READ(NV10_PFIFO_CACHE1_ACQUIRE_TIMESTAMP);
166 RAMFC_WR(ACQUIRE_TIMESTAMP, tmp);
167 RAMFC_WR(ACQUIRE_TIMEOUT , NV_READ(NV10_PFIFO_CACHE1_ACQUIRE_TIMEOUT));
168 RAMFC_WR(SEMAPHORE , NV_READ(NV10_PFIFO_CACHE1_SEMAPHORE));
170 /* NVIDIA read 0x3228 first, then write DMA_GET here.. maybe something
171 * more involved depending on the value of 0x3228?
173 RAMFC_WR(DMA_SUBROUTINE , NV_READ(NV04_PFIFO_CACHE1_DMA_GET));
175 RAMFC_WR(GRCTX_INSTANCE , NV_READ(NV40_PFIFO_GRCTX_INSTANCE));
177 /* No idea what the below is for exactly, ripped from a mmio-trace */
178 RAMFC_WR(UNK_40 , NV_READ(NV40_PFIFO_UNK32E4));
180 /* NVIDIA do this next line twice.. bug? */
181 RAMFC_WR(UNK_44 , NV_READ(0x32e8));
182 RAMFC_WR(UNK_4C , NV_READ(0x2088));
183 RAMFC_WR(UNK_50 , NV_READ(0x3300));
185 #if 0 /* no real idea which is PUT/GET in UNK_48.. */
186 tmp = NV_READ(NV04_PFIFO_CACHE1_GET);
187 tmp |= (NV_READ(NV04_PFIFO_CACHE1_PUT) << 16);
188 RAMFC_WR(UNK_48 , tmp);