Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
[pandora-kernel.git] / drivers / gpu / drm / nouveau / nvc0_copy.c
1 /*
2  * Copyright 2011 Red Hat Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: Ben Skeggs
23  */
24
25 #include <linux/firmware.h>
26 #include "drmP.h"
27 #include "nouveau_drv.h"
28 #include "nouveau_util.h"
29 #include "nouveau_vm.h"
30 #include "nouveau_ramht.h"
31 #include "nvc0_copy.fuc.h"
32
33 struct nvc0_copy_engine {
34         struct nouveau_exec_engine base;
35         u32 irq;
36         u32 pmc;
37         u32 fuc;
38         u32 ctx;
39 };
40
41 static int
42 nvc0_copy_context_new(struct nouveau_channel *chan, int engine)
43 {
44         struct nvc0_copy_engine *pcopy = nv_engine(chan->dev, engine);
45         struct drm_device *dev = chan->dev;
46         struct drm_nouveau_private *dev_priv = dev->dev_private;
47         struct nouveau_gpuobj *ramin = chan->ramin;
48         struct nouveau_gpuobj *ctx = NULL;
49         int ret;
50
51         ret = nouveau_gpuobj_new(dev, NULL, 256, 256,
52                                  NVOBJ_FLAG_VM | NVOBJ_FLAG_VM_USER |
53                                  NVOBJ_FLAG_ZERO_ALLOC, &ctx);
54         if (ret)
55                 return ret;
56
57         nv_wo32(ramin, pcopy->ctx + 0, lower_32_bits(ctx->vinst));
58         nv_wo32(ramin, pcopy->ctx + 4, upper_32_bits(ctx->vinst));
59         dev_priv->engine.instmem.flush(dev);
60
61         chan->engctx[engine] = ctx;
62         return 0;
63 }
64
65 static int
66 nvc0_copy_object_new(struct nouveau_channel *chan, int engine,
67                      u32 handle, u16 class)
68 {
69         return 0;
70 }
71
72 static void
73 nvc0_copy_context_del(struct nouveau_channel *chan, int engine)
74 {
75         struct nvc0_copy_engine *pcopy = nv_engine(chan->dev, engine);
76         struct nouveau_gpuobj *ctx = chan->engctx[engine];
77         struct drm_device *dev = chan->dev;
78         u32 inst;
79
80         inst  = (chan->ramin->vinst >> 12);
81         inst |= 0x40000000;
82
83         /* disable fifo access */
84         nv_wr32(dev, pcopy->fuc + 0x048, 0x00000000);
85         /* mark channel as unloaded if it's currently active */
86         if (nv_rd32(dev, pcopy->fuc + 0x050) == inst)
87                 nv_mask(dev, pcopy->fuc + 0x050, 0x40000000, 0x00000000);
88         /* mark next channel as invalid if it's about to be loaded */
89         if (nv_rd32(dev, pcopy->fuc + 0x054) == inst)
90                 nv_mask(dev, pcopy->fuc + 0x054, 0x40000000, 0x00000000);
91         /* restore fifo access */
92         nv_wr32(dev, pcopy->fuc + 0x048, 0x00000003);
93
94         nv_wo32(chan->ramin, pcopy->ctx + 0, 0x00000000);
95         nv_wo32(chan->ramin, pcopy->ctx + 4, 0x00000000);
96         nouveau_gpuobj_ref(NULL, &ctx);
97
98         chan->engctx[engine] = ctx;
99 }
100
101 static int
102 nvc0_copy_init(struct drm_device *dev, int engine)
103 {
104         struct nvc0_copy_engine *pcopy = nv_engine(dev, engine);
105         int i;
106
107         nv_mask(dev, 0x000200, pcopy->pmc, 0x00000000);
108         nv_mask(dev, 0x000200, pcopy->pmc, pcopy->pmc);
109         nv_wr32(dev, pcopy->fuc + 0x014, 0xffffffff);
110
111         nv_wr32(dev, pcopy->fuc + 0x1c0, 0x01000000);
112         for (i = 0; i < sizeof(nvc0_pcopy_data) / 4; i++)
113                 nv_wr32(dev, pcopy->fuc + 0x1c4, nvc0_pcopy_data[i]);
114
115         nv_wr32(dev, pcopy->fuc + 0x180, 0x01000000);
116         for (i = 0; i < sizeof(nvc0_pcopy_code) / 4; i++) {
117                 if ((i & 0x3f) == 0)
118                         nv_wr32(dev, pcopy->fuc + 0x188, i >> 6);
119                 nv_wr32(dev, pcopy->fuc + 0x184, nvc0_pcopy_code[i]);
120         }
121
122         nv_wr32(dev, pcopy->fuc + 0x084, engine - NVOBJ_ENGINE_COPY0);
123         nv_wr32(dev, pcopy->fuc + 0x10c, 0x00000000);
124         nv_wr32(dev, pcopy->fuc + 0x104, 0x00000000); /* ENTRY */
125         nv_wr32(dev, pcopy->fuc + 0x100, 0x00000002); /* TRIGGER */
126         return 0;
127 }
128
129 static int
130 nvc0_copy_fini(struct drm_device *dev, int engine)
131 {
132         struct nvc0_copy_engine *pcopy = nv_engine(dev, engine);
133
134         nv_mask(dev, pcopy->fuc + 0x048, 0x00000003, 0x00000000);
135
136         /* trigger fuc context unload */
137         nv_wait(dev, pcopy->fuc + 0x008, 0x0000000c, 0x00000000);
138         nv_mask(dev, pcopy->fuc + 0x054, 0x40000000, 0x00000000);
139         nv_wr32(dev, pcopy->fuc + 0x000, 0x00000008);
140         nv_wait(dev, pcopy->fuc + 0x008, 0x00000008, 0x00000000);
141
142         nv_wr32(dev, pcopy->fuc + 0x014, 0xffffffff);
143         return 0;
144 }
145
146 static struct nouveau_enum nvc0_copy_isr_error_name[] = {
147         { 0x0001, "ILLEGAL_MTHD" },
148         { 0x0002, "INVALID_ENUM" },
149         { 0x0003, "INVALID_BITFIELD" },
150         {}
151 };
152
153 static void
154 nvc0_copy_isr(struct drm_device *dev, int engine)
155 {
156         struct nvc0_copy_engine *pcopy = nv_engine(dev, engine);
157         u32 disp = nv_rd32(dev, pcopy->fuc + 0x01c);
158         u32 stat = nv_rd32(dev, pcopy->fuc + 0x008) & disp & ~(disp >> 16);
159         u64 inst = (u64)(nv_rd32(dev, pcopy->fuc + 0x050) & 0x0fffffff) << 12;
160         u32 chid = nvc0_graph_isr_chid(dev, inst);
161         u32 ssta = nv_rd32(dev, pcopy->fuc + 0x040) & 0x0000ffff;
162         u32 addr = nv_rd32(dev, pcopy->fuc + 0x040) >> 16;
163         u32 mthd = (addr & 0x07ff) << 2;
164         u32 subc = (addr & 0x3800) >> 11;
165         u32 data = nv_rd32(dev, pcopy->fuc + 0x044);
166
167         if (stat & 0x00000040) {
168                 NV_INFO(dev, "PCOPY: DISPATCH_ERROR [");
169                 nouveau_enum_print(nvc0_copy_isr_error_name, ssta);
170                 printk("] ch %d [0x%010llx] subc %d mthd 0x%04x data 0x%08x\n",
171                         chid, inst, subc, mthd, data);
172                 nv_wr32(dev, pcopy->fuc + 0x004, 0x00000040);
173                 stat &= ~0x00000040;
174         }
175
176         if (stat) {
177                 NV_INFO(dev, "PCOPY: unhandled intr 0x%08x\n", stat);
178                 nv_wr32(dev, pcopy->fuc + 0x004, stat);
179         }
180 }
181
182 static void
183 nvc0_copy_isr_0(struct drm_device *dev)
184 {
185         nvc0_copy_isr(dev, NVOBJ_ENGINE_COPY0);
186 }
187
188 static void
189 nvc0_copy_isr_1(struct drm_device *dev)
190 {
191         nvc0_copy_isr(dev, NVOBJ_ENGINE_COPY1);
192 }
193
194 static void
195 nvc0_copy_destroy(struct drm_device *dev, int engine)
196 {
197         struct nvc0_copy_engine *pcopy = nv_engine(dev, engine);
198
199         nouveau_irq_unregister(dev, pcopy->irq);
200
201         if (engine == NVOBJ_ENGINE_COPY0)
202                 NVOBJ_ENGINE_DEL(dev, COPY0);
203         else
204                 NVOBJ_ENGINE_DEL(dev, COPY1);
205         kfree(pcopy);
206 }
207
208 int
209 nvc0_copy_create(struct drm_device *dev, int engine)
210 {
211         struct nvc0_copy_engine *pcopy;
212
213         pcopy = kzalloc(sizeof(*pcopy), GFP_KERNEL);
214         if (!pcopy)
215                 return -ENOMEM;
216
217         pcopy->base.destroy = nvc0_copy_destroy;
218         pcopy->base.init = nvc0_copy_init;
219         pcopy->base.fini = nvc0_copy_fini;
220         pcopy->base.context_new = nvc0_copy_context_new;
221         pcopy->base.context_del = nvc0_copy_context_del;
222         pcopy->base.object_new = nvc0_copy_object_new;
223
224         if (engine == 0) {
225                 pcopy->irq = 5;
226                 pcopy->pmc = 0x00000040;
227                 pcopy->fuc = 0x104000;
228                 pcopy->ctx = 0x0230;
229                 nouveau_irq_register(dev, pcopy->irq, nvc0_copy_isr_0);
230                 NVOBJ_ENGINE_ADD(dev, COPY0, &pcopy->base);
231                 NVOBJ_CLASS(dev, 0x90b5, COPY0);
232         } else {
233                 pcopy->irq = 6;
234                 pcopy->pmc = 0x00000080;
235                 pcopy->fuc = 0x105000;
236                 pcopy->ctx = 0x0240;
237                 nouveau_irq_register(dev, pcopy->irq, nvc0_copy_isr_1);
238                 NVOBJ_ENGINE_ADD(dev, COPY1, &pcopy->base);
239                 NVOBJ_CLASS(dev, 0x90b8, COPY1);
240         }
241
242         return 0;
243 }