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1 | /* |
2 | * Copyright (C) 2007 Ben Skeggs. | |
3 | * All Rights Reserved. | |
4 | * | |
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: | |
12 | * | |
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. | |
16 | * | |
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. | |
24 | * | |
25 | */ | |
26 | ||
27 | #ifndef __NOUVEAU_DMA_H__ | |
28 | #define __NOUVEAU_DMA_H__ | |
29 | ||
ebb945a9 BS |
30 | #include "nouveau_bo.h" |
31 | #include "nouveau_chan.h" | |
6ee73861 | 32 | |
ebb945a9 | 33 | int nouveau_dma_wait(struct nouveau_channel *, int slots, int size); |
9a391ad8 | 34 | void nv50_dma_push(struct nouveau_channel *, struct nouveau_bo *, |
a1606a95 | 35 | int delta, int length); |
9a391ad8 | 36 | |
6ee73861 BS |
37 | /* |
38 | * There's a hw race condition where you can't jump to your PUT offset, | |
39 | * to avoid this we jump to offset + SKIPS and fill the difference with | |
40 | * NOPs. | |
41 | * | |
42 | * xf86-video-nv configures the DMA fetch size to 32 bytes, and uses | |
43 | * a SKIPS value of 8. Lets assume that the race condition is to do | |
44 | * with writing into the fetch area, we configure a fetch size of 128 | |
45 | * bytes so we need a larger SKIPS value. | |
46 | */ | |
47 | #define NOUVEAU_DMA_SKIPS (128 / 4) | |
48 | ||
49 | /* Hardcoded object assignments to subchannels (subchannel id). */ | |
50 | enum { | |
d1b167e1 | 51 | NvSubCtxSurf2D = 0, |
acde2d80 | 52 | NvSubSw = 1, |
d1b167e1 | 53 | NvSubImageBlit = 2, |
f1c65e7c | 54 | NvSub2D = 3, |
f03a314b | 55 | NvSubGdiRect = 3, |
c6b7e895 | 56 | NvSubCopy = 4, |
6ee73861 BS |
57 | }; |
58 | ||
59 | /* Object handles. */ | |
60 | enum { | |
61 | NvM2MF = 0x80000001, | |
62 | NvDmaFB = 0x80000002, | |
63 | NvDmaTT = 0x80000003, | |
6ee73861 BS |
64 | NvNotify0 = 0x80000006, |
65 | Nv2D = 0x80000007, | |
66 | NvCtxSurf2D = 0x80000008, | |
67 | NvRop = 0x80000009, | |
68 | NvImagePatt = 0x8000000a, | |
69 | NvClipRect = 0x8000000b, | |
70 | NvGdiRect = 0x8000000c, | |
71 | NvImageBlit = 0x8000000d, | |
f03a314b | 72 | NvSw = 0x8000000e, |
0c6c1c2f | 73 | NvSema = 0x8000000f, |
cdccc70e BS |
74 | NvEvoSema0 = 0x80000010, |
75 | NvEvoSema1 = 0x80000011, | |
d1b167e1 | 76 | NvNotify1 = 0x80000012, |
6ee73861 BS |
77 | |
78 | /* G80+ display objects */ | |
79 | NvEvoVRAM = 0x01000000, | |
80 | NvEvoFB16 = 0x01000001, | |
6d86951a | 81 | NvEvoFB32 = 0x01000002, |
60f60bf1 BS |
82 | NvEvoVRAM_LP = 0x01000003, |
83 | NvEvoSync = 0xcafe0000 | |
6ee73861 BS |
84 | }; |
85 | ||
86 | #define NV_MEMORY_TO_MEMORY_FORMAT 0x00000039 | |
87 | #define NV_MEMORY_TO_MEMORY_FORMAT_NAME 0x00000000 | |
88 | #define NV_MEMORY_TO_MEMORY_FORMAT_SET_REF 0x00000050 | |
89 | #define NV_MEMORY_TO_MEMORY_FORMAT_NOP 0x00000100 | |
90 | #define NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY 0x00000104 | |
91 | #define NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY_STYLE_WRITE 0x00000000 | |
92 | #define NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY_STYLE_WRITE_LE_AWAKEN 0x00000001 | |
93 | #define NV_MEMORY_TO_MEMORY_FORMAT_DMA_NOTIFY 0x00000180 | |
94 | #define NV_MEMORY_TO_MEMORY_FORMAT_DMA_SOURCE 0x00000184 | |
95 | #define NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN 0x0000030c | |
96 | ||
97 | #define NV50_MEMORY_TO_MEMORY_FORMAT 0x00005039 | |
98 | #define NV50_MEMORY_TO_MEMORY_FORMAT_UNK200 0x00000200 | |
99 | #define NV50_MEMORY_TO_MEMORY_FORMAT_UNK21C 0x0000021c | |
100 | #define NV50_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN_HIGH 0x00000238 | |
101 | #define NV50_MEMORY_TO_MEMORY_FORMAT_OFFSET_OUT_HIGH 0x0000023c | |
102 | ||
103 | static __must_check inline int | |
104 | RING_SPACE(struct nouveau_channel *chan, int size) | |
105 | { | |
9a391ad8 | 106 | int ret; |
6ee73861 | 107 | |
9a391ad8 BS |
108 | ret = nouveau_dma_wait(chan, 1, size); |
109 | if (ret) | |
110 | return ret; | |
6ee73861 BS |
111 | |
112 | chan->dma.free -= size; | |
113 | return 0; | |
114 | } | |
115 | ||
116 | static inline void | |
117 | OUT_RING(struct nouveau_channel *chan, int data) | |
118 | { | |
ebb945a9 | 119 | nouveau_bo_wr32(chan->push.buffer, chan->dma.cur++, data); |
6ee73861 BS |
120 | } |
121 | ||
122 | extern void | |
123 | OUT_RINGp(struct nouveau_channel *chan, const void *data, unsigned nr_dwords); | |
124 | ||
96545299 | 125 | static inline void |
6d597027 | 126 | BEGIN_NV04(struct nouveau_channel *chan, int subc, int mthd, int size) |
96545299 | 127 | { |
6d597027 | 128 | OUT_RING(chan, 0x00000000 | (subc << 13) | (size << 18) | mthd); |
96545299 BS |
129 | } |
130 | ||
6ee73861 | 131 | static inline void |
6d597027 | 132 | BEGIN_NI04(struct nouveau_channel *chan, int subc, int mthd, int size) |
6ee73861 | 133 | { |
6d597027 BS |
134 | OUT_RING(chan, 0x40000000 | (subc << 13) | (size << 18) | mthd); |
135 | } | |
136 | ||
137 | static inline void | |
138 | BEGIN_NVC0(struct nouveau_channel *chan, int subc, int mthd, int size) | |
139 | { | |
140 | OUT_RING(chan, 0x20000000 | (size << 16) | (subc << 13) | (mthd >> 2)); | |
141 | } | |
142 | ||
143 | static inline void | |
144 | BEGIN_NIC0(struct nouveau_channel *chan, int subc, int mthd, int size) | |
145 | { | |
146 | OUT_RING(chan, 0x60000000 | (size << 16) | (subc << 13) | (mthd >> 2)); | |
147 | } | |
148 | ||
149 | static inline void | |
150 | BEGIN_IMC0(struct nouveau_channel *chan, int subc, int mthd, u16 data) | |
151 | { | |
152 | OUT_RING(chan, 0x80000000 | (data << 16) | (subc << 13) | (mthd >> 2)); | |
6ee73861 BS |
153 | } |
154 | ||
155 | #define WRITE_PUT(val) do { \ | |
156 | DRM_MEMORYBARRIER(); \ | |
ebb945a9 BS |
157 | nouveau_bo_rd32(chan->push.buffer, 0); \ |
158 | nv_wo32(chan->object, chan->user_put, ((val) << 2) + chan->push.vma.offset); \ | |
6ee73861 BS |
159 | } while (0) |
160 | ||
161 | static inline void | |
162 | FIRE_RING(struct nouveau_channel *chan) | |
163 | { | |
6ee73861 BS |
164 | if (chan->dma.cur == chan->dma.put) |
165 | return; | |
166 | chan->accel_done = true; | |
167 | ||
9a391ad8 | 168 | if (chan->dma.ib_max) { |
ebb945a9 | 169 | nv50_dma_push(chan, chan->push.buffer, chan->dma.put << 2, |
a1606a95 | 170 | (chan->dma.cur - chan->dma.put) << 2); |
9a391ad8 BS |
171 | } else { |
172 | WRITE_PUT(chan->dma.cur); | |
173 | } | |
174 | ||
6ee73861 BS |
175 | chan->dma.put = chan->dma.cur; |
176 | } | |
177 | ||
178 | static inline void | |
179 | WIND_RING(struct nouveau_channel *chan) | |
180 | { | |
181 | chan->dma.cur = chan->dma.put; | |
182 | } | |
183 | ||
ebb945a9 BS |
184 | /* FIFO methods */ |
185 | #define NV01_SUBCHAN_OBJECT 0x00000000 | |
186 | #define NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH 0x00000010 | |
187 | #define NV84_SUBCHAN_SEMAPHORE_ADDRESS_LOW 0x00000014 | |
188 | #define NV84_SUBCHAN_SEMAPHORE_SEQUENCE 0x00000018 | |
189 | #define NV84_SUBCHAN_SEMAPHORE_TRIGGER 0x0000001c | |
190 | #define NV84_SUBCHAN_SEMAPHORE_TRIGGER_ACQUIRE_EQUAL 0x00000001 | |
191 | #define NV84_SUBCHAN_SEMAPHORE_TRIGGER_WRITE_LONG 0x00000002 | |
192 | #define NV84_SUBCHAN_SEMAPHORE_TRIGGER_ACQUIRE_GEQUAL 0x00000004 | |
193 | #define NVC0_SUBCHAN_SEMAPHORE_TRIGGER_YIELD 0x00001000 | |
194 | #define NV84_SUBCHAN_NOTIFY_INTR 0x00000020 | |
195 | #define NV84_SUBCHAN_WRCACHE_FLUSH 0x00000024 | |
196 | #define NV10_SUBCHAN_REF_CNT 0x00000050 | |
197 | #define NVSW_SUBCHAN_PAGE_FLIP 0x00000054 | |
198 | #define NV11_SUBCHAN_DMA_SEMAPHORE 0x00000060 | |
199 | #define NV11_SUBCHAN_SEMAPHORE_OFFSET 0x00000064 | |
200 | #define NV11_SUBCHAN_SEMAPHORE_ACQUIRE 0x00000068 | |
201 | #define NV11_SUBCHAN_SEMAPHORE_RELEASE 0x0000006c | |
202 | #define NV40_SUBCHAN_YIELD 0x00000080 | |
203 | ||
204 | /* NV_SW object class */ | |
205 | #define NV_SW_DMA_VBLSEM 0x0000018c | |
206 | #define NV_SW_VBLSEM_OFFSET 0x00000400 | |
207 | #define NV_SW_VBLSEM_RELEASE_VALUE 0x00000404 | |
208 | #define NV_SW_VBLSEM_RELEASE 0x00000408 | |
209 | #define NV_SW_PAGE_FLIP 0x00000500 | |
210 | ||
6ee73861 | 211 | #endif |