1 | /* $NetBSD: nouveau_engine_mpeg_nv40.c,v 1.1.1.1 2014/08/06 12:36:27 riastradh Exp $ */ |
2 | |
3 | /* |
4 | * Copyright 2012 Red Hat Inc. |
5 | * |
6 | * Permission is hereby granted, free of charge, to any person obtaining a |
7 | * copy of this software and associated documentation files (the "Software"), |
8 | * to deal in the Software without restriction, including without limitation |
9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
10 | * and/or sell copies of the Software, and to permit persons to whom the |
11 | * Software is furnished to do so, subject to the following conditions: |
12 | * |
13 | * The above copyright notice and this permission notice shall be included in |
14 | * all copies or substantial portions of the Software. |
15 | * |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
19 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
20 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
21 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
22 | * OTHER DEALINGS IN THE SOFTWARE. |
23 | * |
24 | * Authors: Ben Skeggs |
25 | */ |
26 | |
27 | #include <sys/cdefs.h> |
28 | __KERNEL_RCSID(0, "$NetBSD: nouveau_engine_mpeg_nv40.c,v 1.1.1.1 2014/08/06 12:36:27 riastradh Exp $" ); |
29 | |
30 | #include <core/os.h> |
31 | #include <core/class.h> |
32 | #include <core/engctx.h> |
33 | |
34 | #include <subdev/fb.h> |
35 | #include <subdev/timer.h> |
36 | #include <subdev/instmem.h> |
37 | |
38 | #include <engine/mpeg.h> |
39 | #include <engine/mpeg/nv31.h> |
40 | |
41 | /******************************************************************************* |
42 | * MPEG object classes |
43 | ******************************************************************************/ |
44 | |
45 | static int |
46 | nv40_mpeg_mthd_dma(struct nouveau_object *object, u32 mthd, void *arg, u32 len) |
47 | { |
48 | struct nouveau_instmem *imem = nouveau_instmem(object); |
49 | struct nv31_mpeg_priv *priv = (void *)object->engine; |
50 | u32 inst = *(u32 *)arg << 4; |
51 | u32 dma0 = nv_ro32(imem, inst + 0); |
52 | u32 dma1 = nv_ro32(imem, inst + 4); |
53 | u32 dma2 = nv_ro32(imem, inst + 8); |
54 | u32 base = (dma2 & 0xfffff000) | (dma0 >> 20); |
55 | u32 size = dma1 + 1; |
56 | |
57 | /* only allow linear DMA objects */ |
58 | if (!(dma0 & 0x00002000)) |
59 | return -EINVAL; |
60 | |
61 | if (mthd == 0x0190) { |
62 | /* DMA_CMD */ |
63 | nv_mask(priv, 0x00b300, 0x00030000, (dma0 & 0x00030000)); |
64 | nv_wr32(priv, 0x00b334, base); |
65 | nv_wr32(priv, 0x00b324, size); |
66 | } else |
67 | if (mthd == 0x01a0) { |
68 | /* DMA_DATA */ |
69 | nv_mask(priv, 0x00b300, 0x000c0000, (dma0 & 0x00030000) << 2); |
70 | nv_wr32(priv, 0x00b360, base); |
71 | nv_wr32(priv, 0x00b364, size); |
72 | } else { |
73 | /* DMA_IMAGE, VRAM only */ |
74 | if (dma0 & 0x00030000) |
75 | return -EINVAL; |
76 | |
77 | nv_wr32(priv, 0x00b370, base); |
78 | nv_wr32(priv, 0x00b374, size); |
79 | } |
80 | |
81 | return 0; |
82 | } |
83 | |
84 | static struct nouveau_omthds |
85 | nv40_mpeg_omthds[] = { |
86 | { 0x0190, 0x0190, nv40_mpeg_mthd_dma }, |
87 | { 0x01a0, 0x01a0, nv40_mpeg_mthd_dma }, |
88 | { 0x01b0, 0x01b0, nv40_mpeg_mthd_dma }, |
89 | {} |
90 | }; |
91 | |
92 | struct nouveau_oclass |
93 | nv40_mpeg_sclass[] = { |
94 | { 0x3174, &nv31_mpeg_ofuncs, nv40_mpeg_omthds }, |
95 | {} |
96 | }; |
97 | |
98 | /******************************************************************************* |
99 | * PMPEG engine/subdev functions |
100 | ******************************************************************************/ |
101 | |
102 | static void |
103 | nv40_mpeg_intr(struct nouveau_subdev *subdev) |
104 | { |
105 | struct nv31_mpeg_priv *priv = (void *)subdev; |
106 | u32 stat; |
107 | |
108 | if ((stat = nv_rd32(priv, 0x00b100))) |
109 | nv31_mpeg_intr(subdev); |
110 | |
111 | if ((stat = nv_rd32(priv, 0x00b800))) { |
112 | nv_error(priv, "PMSRCH 0x%08x\n" , stat); |
113 | nv_wr32(priv, 0x00b800, stat); |
114 | } |
115 | } |
116 | |
117 | static int |
118 | nv40_mpeg_ctor(struct nouveau_object *parent, struct nouveau_object *engine, |
119 | struct nouveau_oclass *oclass, void *data, u32 size, |
120 | struct nouveau_object **pobject) |
121 | { |
122 | struct nv31_mpeg_priv *priv; |
123 | int ret; |
124 | |
125 | ret = nouveau_mpeg_create(parent, engine, oclass, &priv); |
126 | *pobject = nv_object(priv); |
127 | if (ret) |
128 | return ret; |
129 | |
130 | nv_subdev(priv)->unit = 0x00000002; |
131 | nv_subdev(priv)->intr = nv40_mpeg_intr; |
132 | nv_engine(priv)->cclass = &nv31_mpeg_cclass; |
133 | nv_engine(priv)->sclass = nv40_mpeg_sclass; |
134 | nv_engine(priv)->tile_prog = nv31_mpeg_tile_prog; |
135 | return 0; |
136 | } |
137 | |
138 | struct nouveau_oclass |
139 | nv40_mpeg_oclass = { |
140 | .handle = NV_ENGINE(MPEG, 0x40), |
141 | .ofuncs = &(struct nouveau_ofuncs) { |
142 | .ctor = nv40_mpeg_ctor, |
143 | .dtor = _nouveau_mpeg_dtor, |
144 | .init = nv31_mpeg_init, |
145 | .fini = _nouveau_mpeg_fini, |
146 | }, |
147 | }; |
148 | |