diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv31_mpeg.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv31_mpeg.c | 344 |
1 files changed, 344 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv31_mpeg.c b/drivers/gpu/drm/nouveau/nv31_mpeg.c new file mode 100644 index 00000000000..6f06a0713f0 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nv31_mpeg.c @@ -0,0 +1,344 @@ +/* + * Copyright 2011 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: Ben Skeggs + */ + +#include "drmP.h" +#include "nouveau_drv.h" +#include "nouveau_ramht.h" + +struct nv31_mpeg_engine { + struct nouveau_exec_engine base; + atomic_t refcount; +}; + + +static int +nv31_mpeg_context_new(struct nouveau_channel *chan, int engine) +{ + struct nv31_mpeg_engine *pmpeg = nv_engine(chan->dev, engine); + + if (!atomic_add_unless(&pmpeg->refcount, 1, 1)) + return -EBUSY; + + chan->engctx[engine] = (void *)0xdeadcafe; + return 0; +} + +static void +nv31_mpeg_context_del(struct nouveau_channel *chan, int engine) +{ + struct nv31_mpeg_engine *pmpeg = nv_engine(chan->dev, engine); + atomic_dec(&pmpeg->refcount); + chan->engctx[engine] = NULL; +} + +static int +nv40_mpeg_context_new(struct nouveau_channel *chan, int engine) +{ + struct drm_device *dev = chan->dev; + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpuobj *ctx = NULL; + unsigned long flags; + int ret; + + NV_DEBUG(dev, "ch%d\n", chan->id); + + ret = nouveau_gpuobj_new(dev, NULL, 264 * 4, 16, NVOBJ_FLAG_ZERO_ALLOC | + NVOBJ_FLAG_ZERO_FREE, &ctx); + if (ret) + return ret; + + nv_wo32(ctx, 0x78, 0x02001ec1); + + spin_lock_irqsave(&dev_priv->context_switch_lock, flags); + nv_mask(dev, 0x002500, 0x00000001, 0x00000000); + if ((nv_rd32(dev, 0x003204) & 0x1f) == chan->id) + nv_wr32(dev, 0x00330c, ctx->pinst >> 4); + nv_wo32(chan->ramfc, 0x54, ctx->pinst >> 4); + nv_mask(dev, 0x002500, 0x00000001, 0x00000001); + spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags); + + chan->engctx[engine] = ctx; + return 0; +} + +static void +nv40_mpeg_context_del(struct nouveau_channel *chan, int engine) +{ + struct drm_nouveau_private *dev_priv = chan->dev->dev_private; + struct nouveau_gpuobj *ctx = chan->engctx[engine]; + struct drm_device *dev = chan->dev; + unsigned long flags; + u32 inst = 0x80000000 | (ctx->pinst >> 4); + + spin_lock_irqsave(&dev_priv->context_switch_lock, flags); + nv_mask(dev, 0x00b32c, 0x00000001, 0x00000000); + if (nv_rd32(dev, 0x00b318) == inst) + nv_mask(dev, 0x00b318, 0x80000000, 0x00000000); + nv_mask(dev, 0x00b32c, 0x00000001, 0x00000001); + spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags); + + nouveau_gpuobj_ref(NULL, &ctx); + chan->engctx[engine] = NULL; +} + +static int +nv31_mpeg_object_new(struct nouveau_channel *chan, int engine, + u32 handle, u16 class) +{ + struct drm_device *dev = chan->dev; + struct nouveau_gpuobj *obj = NULL; + int ret; + + ret = nouveau_gpuobj_new(dev, chan, 20, 16, NVOBJ_FLAG_ZERO_ALLOC | + NVOBJ_FLAG_ZERO_FREE, &obj); + if (ret) + return ret; + obj->engine = 2; + obj->class = class; + + nv_wo32(obj, 0x00, class); + + ret = nouveau_ramht_insert(chan, handle, obj); + nouveau_gpuobj_ref(NULL, &obj); + return ret; +} + +static int +nv31_mpeg_init(struct drm_device *dev, int engine) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nv31_mpeg_engine *pmpeg = nv_engine(dev, engine); + int i; + + /* VPE init */ + nv_mask(dev, 0x000200, 0x00000002, 0x00000000); + nv_mask(dev, 0x000200, 0x00000002, 0x00000002); + nv_wr32(dev, 0x00b0e0, 0x00000020); /* nvidia: rd 0x01, wr 0x20 */ + nv_wr32(dev, 0x00b0e8, 0x00000020); /* nvidia: rd 0x01, wr 0x20 */ + + for (i = 0; i < dev_priv->engine.fb.num_tiles; i++) + pmpeg->base.set_tile_region(dev, i); + + /* PMPEG init */ + nv_wr32(dev, 0x00b32c, 0x00000000); + nv_wr32(dev, 0x00b314, 0x00000100); + nv_wr32(dev, 0x00b220, nv44_graph_class(dev) ? 0x00000044 : 0x00000031); + nv_wr32(dev, 0x00b300, 0x02001ec1); + nv_mask(dev, 0x00b32c, 0x00000001, 0x00000001); + + nv_wr32(dev, 0x00b100, 0xffffffff); + nv_wr32(dev, 0x00b140, 0xffffffff); + + if (!nv_wait(dev, 0x00b200, 0x00000001, 0x00000000)) { + NV_ERROR(dev, "PMPEG init: 0x%08x\n", nv_rd32(dev, 0x00b200)); + return -EBUSY; + } + + return 0; +} + +static int +nv31_mpeg_fini(struct drm_device *dev, int engine, bool suspend) +{ + /*XXX: context save? */ + nv_mask(dev, 0x00b32c, 0x00000001, 0x00000000); + nv_wr32(dev, 0x00b140, 0x00000000); + return 0; +} + +static int +nv31_mpeg_mthd_dma(struct nouveau_channel *chan, u32 class, u32 mthd, u32 data) +{ + struct drm_device *dev = chan->dev; + u32 inst = data << 4; + u32 dma0 = nv_ri32(dev, inst + 0); + u32 dma1 = nv_ri32(dev, inst + 4); + u32 dma2 = nv_ri32(dev, inst + 8); + u32 base = (dma2 & 0xfffff000) | (dma0 >> 20); + u32 size = dma1 + 1; + + /* only allow linear DMA objects */ + if (!(dma0 & 0x00002000)) + return -EINVAL; + + if (mthd == 0x0190) { + /* DMA_CMD */ + nv_mask(dev, 0x00b300, 0x00030000, (dma0 & 0x00030000)); + nv_wr32(dev, 0x00b334, base); + nv_wr32(dev, 0x00b324, size); + } else + if (mthd == 0x01a0) { + /* DMA_DATA */ + nv_mask(dev, 0x00b300, 0x000c0000, (dma0 & 0x00030000) << 2); + nv_wr32(dev, 0x00b360, base); + nv_wr32(dev, 0x00b364, size); + } else { + /* DMA_IMAGE, VRAM only */ + if (dma0 & 0x000c0000) + return -EINVAL; + + nv_wr32(dev, 0x00b370, base); + nv_wr32(dev, 0x00b374, size); + } + + return 0; +} + +static int +nv31_mpeg_isr_chid(struct drm_device *dev, u32 inst) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpuobj *ctx; + unsigned long flags; + int i; + + /* hardcode drm channel id on nv3x, so swmthd lookup works */ + if (dev_priv->card_type < NV_40) + return 0; + + spin_lock_irqsave(&dev_priv->channels.lock, flags); + for (i = 0; i < dev_priv->engine.fifo.channels; i++) { + if (!dev_priv->channels.ptr[i]) + continue; + + ctx = dev_priv->channels.ptr[i]->engctx[NVOBJ_ENGINE_MPEG]; + if (ctx && ctx->pinst == inst) + break; + } + spin_unlock_irqrestore(&dev_priv->channels.lock, flags); + return i; +} + +static void +nv31_vpe_set_tile_region(struct drm_device *dev, int i) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_tile_reg *tile = &dev_priv->tile.reg[i]; + + nv_wr32(dev, 0x00b008 + (i * 0x10), tile->pitch); + nv_wr32(dev, 0x00b004 + (i * 0x10), tile->limit); + nv_wr32(dev, 0x00b000 + (i * 0x10), tile->addr); +} + +static void +nv31_mpeg_isr(struct drm_device *dev) +{ + u32 inst = (nv_rd32(dev, 0x00b318) & 0x000fffff) << 4; + u32 chid = nv31_mpeg_isr_chid(dev, inst); + u32 stat = nv_rd32(dev, 0x00b100); + u32 type = nv_rd32(dev, 0x00b230); + u32 mthd = nv_rd32(dev, 0x00b234); + u32 data = nv_rd32(dev, 0x00b238); + u32 show = stat; + + if (stat & 0x01000000) { + /* happens on initial binding of the object */ + if (type == 0x00000020 && mthd == 0x0000) { + nv_mask(dev, 0x00b308, 0x00000000, 0x00000000); + show &= ~0x01000000; + } + + if (type == 0x00000010) { + if (!nouveau_gpuobj_mthd_call2(dev, chid, 0x3174, mthd, data)) + show &= ~0x01000000; + } + } + + nv_wr32(dev, 0x00b100, stat); + nv_wr32(dev, 0x00b230, 0x00000001); + + if (show && nouveau_ratelimit()) { + NV_INFO(dev, "PMPEG: Ch %d [0x%08x] 0x%08x 0x%08x 0x%08x 0x%08x\n", + chid, inst, stat, type, mthd, data); + } +} + +static void +nv31_vpe_isr(struct drm_device *dev) +{ + if (nv_rd32(dev, 0x00b100)) + nv31_mpeg_isr(dev); + + if (nv_rd32(dev, 0x00b800)) { + u32 stat = nv_rd32(dev, 0x00b800); + NV_INFO(dev, "PMSRCH: 0x%08x\n", stat); + nv_wr32(dev, 0xb800, stat); + } +} + +static void +nv31_mpeg_destroy(struct drm_device *dev, int engine) +{ + struct nv31_mpeg_engine *pmpeg = nv_engine(dev, engine); + + nouveau_irq_unregister(dev, 0); + + NVOBJ_ENGINE_DEL(dev, MPEG); + kfree(pmpeg); +} + +int +nv31_mpeg_create(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nv31_mpeg_engine *pmpeg; + + pmpeg = kzalloc(sizeof(*pmpeg), GFP_KERNEL); + if (!pmpeg) + return -ENOMEM; + atomic_set(&pmpeg->refcount, 0); + + pmpeg->base.destroy = nv31_mpeg_destroy; + pmpeg->base.init = nv31_mpeg_init; + pmpeg->base.fini = nv31_mpeg_fini; + if (dev_priv->card_type < NV_40) { + pmpeg->base.context_new = nv31_mpeg_context_new; + pmpeg->base.context_del = nv31_mpeg_context_del; + } else { + pmpeg->base.context_new = nv40_mpeg_context_new; + pmpeg->base.context_del = nv40_mpeg_context_del; + } + pmpeg->base.object_new = nv31_mpeg_object_new; + + /* ISR vector, PMC_ENABLE bit, and TILE regs are shared between + * all VPE engines, for this driver's purposes the PMPEG engine + * will be treated as the "master" and handle the global VPE + * bits too + */ + pmpeg->base.set_tile_region = nv31_vpe_set_tile_region; + nouveau_irq_register(dev, 0, nv31_vpe_isr); + + NVOBJ_ENGINE_ADD(dev, MPEG, &pmpeg->base); + NVOBJ_CLASS(dev, 0x3174, MPEG); + NVOBJ_MTHD (dev, 0x3174, 0x0190, nv31_mpeg_mthd_dma); + NVOBJ_MTHD (dev, 0x3174, 0x01a0, nv31_mpeg_mthd_dma); + NVOBJ_MTHD (dev, 0x3174, 0x01b0, nv31_mpeg_mthd_dma); + +#if 0 + NVOBJ_ENGINE_ADD(dev, ME, &pme->base); + NVOBJ_CLASS(dev, 0x4075, ME); +#endif + return 0; + +} |