drivers/gpu/drm/nouveau/nv50_mpeg.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 "drmP.h"
  26 #include "nouveau_drv.h"
  27 #include "nouveau_ramht.h"
  28
  29 struct nv50_mpeg_engine {
  30         struct nouveau_exec_engine base;
  31 };
  32
  33 static inline u32
  34 CTX_PTR(struct drm_device *dev, u32 offset)
  35 {
  36         struct drm_nouveau_private *dev_priv = dev->dev_private;
  37
  38         if (dev_priv->chipset == 0x50)
  39                 offset += 0x0260;
  40         else
  41                 offset += 0x0060;
  42
  43         return offset;
  44 }
  45
  46 static int
  47 nv50_mpeg_context_new(struct nouveau_channel *chan, int engine)
  48 {
  49         struct drm_device *dev = chan->dev;
  50         struct drm_nouveau_private *dev_priv = dev->dev_private;
  51         struct nouveau_gpuobj *ramin = chan->ramin;
  52         struct nouveau_gpuobj *ctx = NULL;
  53         int ret;
  54
  55         NV_DEBUG(dev, "ch%d\n", chan->id);
  56
  57         ret = nouveau_gpuobj_new(dev, chan, 128 * 4, 0, NVOBJ_FLAG_ZERO_ALLOC |
  58                                  NVOBJ_FLAG_ZERO_FREE, &ctx);
  59         if (ret)
  60                 return ret;
  61
  62         nv_wo32(ramin, CTX_PTR(dev, 0x00), 0x80190002);
  63         nv_wo32(ramin, CTX_PTR(dev, 0x04), ctx->vinst + ctx->size - 1);
  64         nv_wo32(ramin, CTX_PTR(dev, 0x08), ctx->vinst);
  65         nv_wo32(ramin, CTX_PTR(dev, 0x0c), 0);
  66         nv_wo32(ramin, CTX_PTR(dev, 0x10), 0);
  67         nv_wo32(ramin, CTX_PTR(dev, 0x14), 0x00010000);
  68
  69         nv_wo32(ctx, 0x70, 0x00801ec1);
  70         nv_wo32(ctx, 0x7c, 0x0000037c);
  71         dev_priv->engine.instmem.flush(dev);
  72
  73         chan->engctx[engine] = ctx;
  74         return 0;
  75 }
  76
  77 static void
  78 nv50_mpeg_context_del(struct nouveau_channel *chan, int engine)
  79 {
  80         struct drm_nouveau_private *dev_priv = chan->dev->dev_private;
  81         struct nouveau_gpuobj *ctx = chan->engctx[engine];
  82         struct drm_device *dev = chan->dev;
  83         unsigned long flags;
  84         u32 inst, i;
  85
  86         if (!chan->ramin)
  87                 return;
  88
  89         inst  = chan->ramin->vinst >> 12;
  90         inst |= 0x80000000;
  91
  92         spin_lock_irqsave(&dev_priv->context_switch_lock, flags);
  93         nv_mask(dev, 0x00b32c, 0x00000001, 0x00000000);
  94         if (nv_rd32(dev, 0x00b318) == inst)
  95                 nv_mask(dev, 0x00b318, 0x80000000, 0x00000000);
  96         nv_mask(dev, 0x00b32c, 0x00000001, 0x00000001);
  97         spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags);
  98
  99         for (i = 0x00; i <= 0x14; i += 4)
 100                 nv_wo32(chan->ramin, CTX_PTR(dev, i), 0x00000000);
 101         nouveau_gpuobj_ref(NULL, &ctx);
 102         chan->engctx[engine] = NULL;
 103 }
 104
 105 static int
 106 nv50_mpeg_object_new(struct nouveau_channel *chan, int engine,
 107                      u32 handle, u16 class)
 108 {
 109         struct drm_device *dev = chan->dev;
 110         struct drm_nouveau_private *dev_priv = dev->dev_private;
 111         struct nouveau_gpuobj *obj = NULL;
 112         int ret;
 113
 114         ret = nouveau_gpuobj_new(dev, chan, 16, 16, NVOBJ_FLAG_ZERO_FREE, &obj);
 115         if (ret)
 116                 return ret;
 117         obj->engine = 2;
 118         obj->class  = class;
 119
 120         nv_wo32(obj, 0x00, class);
 121         nv_wo32(obj, 0x04, 0x00000000);
 122         nv_wo32(obj, 0x08, 0x00000000);
 123         nv_wo32(obj, 0x0c, 0x00000000);
 124         dev_priv->engine.instmem.flush(dev);
 125
 126         ret = nouveau_ramht_insert(chan, handle, obj);
 127         nouveau_gpuobj_ref(NULL, &obj);
 128         return ret;
 129 }
 130
 131 static void
 132 nv50_mpeg_tlb_flush(struct drm_device *dev, int engine)
 133 {
 134         nv50_vm_flush_engine(dev, 0x08);
 135 }
 136
 137 static int
 138 nv50_mpeg_init(struct drm_device *dev, int engine)
 139 {
 140         nv_wr32(dev, 0x00b32c, 0x00000000);
 141         nv_wr32(dev, 0x00b314, 0x00000100);
 142         nv_wr32(dev, 0x00b0e0, 0x0000001a);
 143
 144         nv_wr32(dev, 0x00b220, 0x00000044);
 145         nv_wr32(dev, 0x00b300, 0x00801ec1);
 146         nv_wr32(dev, 0x00b390, 0x00000000);
 147         nv_wr32(dev, 0x00b394, 0x00000000);
 148         nv_wr32(dev, 0x00b398, 0x00000000);
 149         nv_mask(dev, 0x00b32c, 0x00000001, 0x00000001);
 150
 151         nv_wr32(dev, 0x00b100, 0xffffffff);
 152         nv_wr32(dev, 0x00b140, 0xffffffff);
 153
 154         if (!nv_wait(dev, 0x00b200, 0x00000001, 0x00000000)) {
 155                 NV_ERROR(dev, "PMPEG init: 0x%08x\n", nv_rd32(dev, 0x00b200));
 156                 return -EBUSY;
 157         }
 158
 159         return 0;
 160 }
 161
 162 static int
 163 nv50_mpeg_fini(struct drm_device *dev, int engine, bool suspend)
 164 {
 165         /*XXX: context save for s/r */
 166         nv_mask(dev, 0x00b32c, 0x00000001, 0x00000000);
 167         nv_wr32(dev, 0x00b140, 0x00000000);
 168         return 0;
 169 }
 170
 171 static void
 172 nv50_mpeg_isr(struct drm_device *dev)
 173 {
 174         u32 stat = nv_rd32(dev, 0x00b100);
 175         u32 type = nv_rd32(dev, 0x00b230);
 176         u32 mthd = nv_rd32(dev, 0x00b234);
 177         u32 data = nv_rd32(dev, 0x00b238);
 178         u32 show = stat;
 179
 180         if (stat & 0x01000000) {
 181                 /* happens on initial binding of the object */
 182                 if (type == 0x00000020 && mthd == 0x0000) {
 183                         nv_wr32(dev, 0x00b308, 0x00000100);
 184                         show &= ~0x01000000;
 185                 }
 186         }
 187
 188         if (show && nouveau_ratelimit()) {
 189                 NV_INFO(dev, "PMPEG - 0x%08x 0x%08x 0x%08x 0x%08x\n",
 190                         stat, type, mthd, data);
 191         }
 192
 193         nv_wr32(dev, 0x00b100, stat);
 194         nv_wr32(dev, 0x00b230, 0x00000001);
 195         nv50_fb_vm_trap(dev, 1);
 196 }
 197
 198 static void
 199 nv50_vpe_isr(struct drm_device *dev)
 200 {
 201         if (nv_rd32(dev, 0x00b100))
 202                 nv50_mpeg_isr(dev);
 203
 204         if (nv_rd32(dev, 0x00b800)) {
 205                 u32 stat = nv_rd32(dev, 0x00b800);
 206                 NV_INFO(dev, "PMSRCH: 0x%08x\n", stat);
 207                 nv_wr32(dev, 0xb800, stat);
 208         }
 209 }
 210
 211 static void
 212 nv50_mpeg_destroy(struct drm_device *dev, int engine)
 213 {
 214         struct nv50_mpeg_engine *pmpeg = nv_engine(dev, engine);
 215
 216         nouveau_irq_unregister(dev, 0);
 217
 218         NVOBJ_ENGINE_DEL(dev, MPEG);
 219         kfree(pmpeg);
 220 }
 221
 222 int
 223 nv50_mpeg_create(struct drm_device *dev)
 224 {
 225         struct drm_nouveau_private *dev_priv = dev->dev_private;
 226         struct nv50_mpeg_engine *pmpeg;
 227
 228         pmpeg = kzalloc(sizeof(*pmpeg), GFP_KERNEL);
 229         if (!pmpeg)
 230                 return -ENOMEM;
 231
 232         pmpeg->base.destroy = nv50_mpeg_destroy;
 233         pmpeg->base.init = nv50_mpeg_init;
 234         pmpeg->base.fini = nv50_mpeg_fini;
 235         pmpeg->base.context_new = nv50_mpeg_context_new;
 236         pmpeg->base.context_del = nv50_mpeg_context_del;
 237         pmpeg->base.object_new = nv50_mpeg_object_new;
 238         pmpeg->base.tlb_flush = nv50_mpeg_tlb_flush;
 239
 240         if (dev_priv->chipset == 0x50) {
 241                 nouveau_irq_register(dev, 0, nv50_vpe_isr);
 242                 NVOBJ_ENGINE_ADD(dev, MPEG, &pmpeg->base);
 243                 NVOBJ_CLASS(dev, 0x3174, MPEG);
 244 #if 0
 245                 NVOBJ_ENGINE_ADD(dev, ME, &pme->base);
 246                 NVOBJ_CLASS(dev, 0x4075, ME);
 247 #endif
 248         } else {
 249                 nouveau_irq_register(dev, 0, nv50_mpeg_isr);
 250                 NVOBJ_ENGINE_ADD(dev, MPEG, &pmpeg->base);
 251                 NVOBJ_CLASS(dev, 0x8274, MPEG);
 252         }
 253
 254         return 0;
 255
 256 }