Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 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 | |
| 30 | #ifndef NOUVEAU_DMA_DEBUG |
| 31 | #define NOUVEAU_DMA_DEBUG 0 |
| 32 | #endif |
| 33 | |
Ben Skeggs | 9a391ad | 2010-02-11 16:37:26 +1000 | [diff] [blame] | 34 | void nv50_dma_push(struct nouveau_channel *, struct nouveau_bo *, |
Ben Skeggs | a1606a9 | 2010-02-12 10:27:35 +1000 | [diff] [blame] | 35 | int delta, int length); |
Ben Skeggs | 9a391ad | 2010-02-11 16:37:26 +1000 | [diff] [blame] | 36 | |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 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 { |
| 51 | NvSubM2MF = 0, |
Francisco Jerez | f03a314 | 2009-12-26 02:42:45 +0100 | [diff] [blame] | 52 | NvSubSw = 1, |
| 53 | NvSub2D = 2, |
| 54 | NvSubCtxSurf2D = 2, |
| 55 | NvSubGdiRect = 3, |
| 56 | NvSubImageBlit = 4 |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 57 | }; |
| 58 | |
| 59 | /* Object handles. */ |
| 60 | enum { |
| 61 | NvM2MF = 0x80000001, |
| 62 | NvDmaFB = 0x80000002, |
| 63 | NvDmaTT = 0x80000003, |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 64 | NvNotify0 = 0x80000006, |
| 65 | Nv2D = 0x80000007, |
| 66 | NvCtxSurf2D = 0x80000008, |
| 67 | NvRop = 0x80000009, |
| 68 | NvImagePatt = 0x8000000a, |
| 69 | NvClipRect = 0x8000000b, |
| 70 | NvGdiRect = 0x8000000c, |
| 71 | NvImageBlit = 0x8000000d, |
Francisco Jerez | f03a314 | 2009-12-26 02:42:45 +0100 | [diff] [blame] | 72 | NvSw = 0x8000000e, |
Francisco Jerez | 0c6c1c2 | 2010-09-22 00:58:54 +0200 | [diff] [blame] | 73 | NvSema = 0x8000000f, |
Ben Skeggs | cdccc70 | 2011-02-07 13:29:23 +1000 | [diff] [blame] | 74 | NvEvoSema0 = 0x80000010, |
| 75 | NvEvoSema1 = 0x80000011, |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 76 | |
| 77 | /* G80+ display objects */ |
| 78 | NvEvoVRAM = 0x01000000, |
| 79 | NvEvoFB16 = 0x01000001, |
Ben Skeggs | 6d86951 | 2010-12-08 11:19:30 +1000 | [diff] [blame] | 80 | NvEvoFB32 = 0x01000002, |
Ben Skeggs | 60f60bf | 2011-02-03 15:46:14 +1000 | [diff] [blame] | 81 | NvEvoVRAM_LP = 0x01000003, |
| 82 | NvEvoSync = 0xcafe0000 |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 83 | }; |
| 84 | |
| 85 | #define NV_MEMORY_TO_MEMORY_FORMAT 0x00000039 |
| 86 | #define NV_MEMORY_TO_MEMORY_FORMAT_NAME 0x00000000 |
| 87 | #define NV_MEMORY_TO_MEMORY_FORMAT_SET_REF 0x00000050 |
| 88 | #define NV_MEMORY_TO_MEMORY_FORMAT_NOP 0x00000100 |
| 89 | #define NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY 0x00000104 |
| 90 | #define NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY_STYLE_WRITE 0x00000000 |
| 91 | #define NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY_STYLE_WRITE_LE_AWAKEN 0x00000001 |
| 92 | #define NV_MEMORY_TO_MEMORY_FORMAT_DMA_NOTIFY 0x00000180 |
| 93 | #define NV_MEMORY_TO_MEMORY_FORMAT_DMA_SOURCE 0x00000184 |
| 94 | #define NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN 0x0000030c |
| 95 | |
| 96 | #define NV50_MEMORY_TO_MEMORY_FORMAT 0x00005039 |
| 97 | #define NV50_MEMORY_TO_MEMORY_FORMAT_UNK200 0x00000200 |
| 98 | #define NV50_MEMORY_TO_MEMORY_FORMAT_UNK21C 0x0000021c |
| 99 | #define NV50_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN_HIGH 0x00000238 |
| 100 | #define NV50_MEMORY_TO_MEMORY_FORMAT_OFFSET_OUT_HIGH 0x0000023c |
| 101 | |
| 102 | static __must_check inline int |
| 103 | RING_SPACE(struct nouveau_channel *chan, int size) |
| 104 | { |
Ben Skeggs | 9a391ad | 2010-02-11 16:37:26 +1000 | [diff] [blame] | 105 | int ret; |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 106 | |
Ben Skeggs | 9a391ad | 2010-02-11 16:37:26 +1000 | [diff] [blame] | 107 | ret = nouveau_dma_wait(chan, 1, size); |
| 108 | if (ret) |
| 109 | return ret; |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 110 | |
| 111 | chan->dma.free -= size; |
| 112 | return 0; |
| 113 | } |
| 114 | |
| 115 | static inline void |
| 116 | OUT_RING(struct nouveau_channel *chan, int data) |
| 117 | { |
| 118 | if (NOUVEAU_DMA_DEBUG) { |
| 119 | NV_INFO(chan->dev, "Ch%d/0x%08x: 0x%08x\n", |
| 120 | chan->id, chan->dma.cur << 2, data); |
| 121 | } |
| 122 | |
| 123 | nouveau_bo_wr32(chan->pushbuf_bo, chan->dma.cur++, data); |
| 124 | } |
| 125 | |
| 126 | extern void |
| 127 | OUT_RINGp(struct nouveau_channel *chan, const void *data, unsigned nr_dwords); |
| 128 | |
| 129 | static inline void |
Ben Skeggs | 9654529 | 2010-11-24 10:26:24 +1000 | [diff] [blame] | 130 | BEGIN_NVC0(struct nouveau_channel *chan, int op, int subc, int mthd, int size) |
| 131 | { |
| 132 | OUT_RING(chan, (op << 28) | (size << 16) | (subc << 13) | (mthd >> 2)); |
| 133 | } |
| 134 | |
| 135 | static inline void |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 136 | BEGIN_RING(struct nouveau_channel *chan, int subc, int mthd, int size) |
| 137 | { |
| 138 | OUT_RING(chan, (subc << 13) | (size << 18) | mthd); |
| 139 | } |
| 140 | |
| 141 | #define WRITE_PUT(val) do { \ |
| 142 | DRM_MEMORYBARRIER(); \ |
| 143 | nouveau_bo_rd32(chan->pushbuf_bo, 0); \ |
| 144 | nvchan_wr32(chan, chan->user_put, ((val) << 2) + chan->pushbuf_base); \ |
| 145 | } while (0) |
| 146 | |
| 147 | static inline void |
| 148 | FIRE_RING(struct nouveau_channel *chan) |
| 149 | { |
| 150 | if (NOUVEAU_DMA_DEBUG) { |
| 151 | NV_INFO(chan->dev, "Ch%d/0x%08x: PUSH!\n", |
| 152 | chan->id, chan->dma.cur << 2); |
| 153 | } |
| 154 | |
| 155 | if (chan->dma.cur == chan->dma.put) |
| 156 | return; |
| 157 | chan->accel_done = true; |
| 158 | |
Ben Skeggs | 9a391ad | 2010-02-11 16:37:26 +1000 | [diff] [blame] | 159 | if (chan->dma.ib_max) { |
| 160 | nv50_dma_push(chan, chan->pushbuf_bo, chan->dma.put << 2, |
Ben Skeggs | a1606a9 | 2010-02-12 10:27:35 +1000 | [diff] [blame] | 161 | (chan->dma.cur - chan->dma.put) << 2); |
Ben Skeggs | 9a391ad | 2010-02-11 16:37:26 +1000 | [diff] [blame] | 162 | } else { |
| 163 | WRITE_PUT(chan->dma.cur); |
| 164 | } |
| 165 | |
Ben Skeggs | 6ee7386 | 2009-12-11 19:24:15 +1000 | [diff] [blame] | 166 | chan->dma.put = chan->dma.cur; |
| 167 | } |
| 168 | |
| 169 | static inline void |
| 170 | WIND_RING(struct nouveau_channel *chan) |
| 171 | { |
| 172 | chan->dma.cur = chan->dma.put; |
| 173 | } |
| 174 | |
| 175 | #endif |