diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv50_mpeg.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv50_mpeg.c | 256 |
1 files changed, 256 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_mpeg.c b/drivers/gpu/drm/nouveau/nv50_mpeg.c new file mode 100644 index 0000000..1dc5913 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nv50_mpeg.c @@ -0,0 +1,256 @@ +/* + * 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 nv50_mpeg_engine { + struct nouveau_exec_engine base; +}; + +static inline u32 +CTX_PTR(struct drm_device *dev, u32 offset) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + + if (dev_priv->chipset == 0x50) + offset += 0x0260; + else + offset += 0x0060; + + return offset; +} + +static int +nv50_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 *ramin = chan->ramin; + struct nouveau_gpuobj *ctx = NULL; + int ret; + + NV_DEBUG(dev, "ch%d\n", chan->id); + + ret = nouveau_gpuobj_new(dev, chan, 128 * 4, 0, NVOBJ_FLAG_ZERO_ALLOC | + NVOBJ_FLAG_ZERO_FREE, &ctx); + if (ret) + return ret; + + nv_wo32(ramin, CTX_PTR(dev, 0x00), 0x80190002); + nv_wo32(ramin, CTX_PTR(dev, 0x04), ctx->vinst + ctx->size - 1); + nv_wo32(ramin, CTX_PTR(dev, 0x08), ctx->vinst); + nv_wo32(ramin, CTX_PTR(dev, 0x0c), 0); + nv_wo32(ramin, CTX_PTR(dev, 0x10), 0); + nv_wo32(ramin, CTX_PTR(dev, 0x14), 0x00010000); + + nv_wo32(ctx, 0x70, 0x00801ec1); + nv_wo32(ctx, 0x7c, 0x0000037c); + dev_priv->engine.instmem.flush(dev); + + chan->engctx[engine] = ctx; + return 0; +} + +static void +nv50_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, i; + + if (!chan->ramin) + return; + + inst = chan->ramin->vinst >> 12; + inst |= 0x80000000; + + 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); + + for (i = 0x00; i <= 0x14; i += 4) + nv_wo32(chan->ramin, CTX_PTR(dev, i), 0x00000000); + nouveau_gpuobj_ref(NULL, &ctx); + chan->engctx[engine] = NULL; +} + +static int +nv50_mpeg_object_new(struct nouveau_channel *chan, int engine, + u32 handle, u16 class) +{ + struct drm_device *dev = chan->dev; + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_gpuobj *obj = NULL; + int ret; + + ret = nouveau_gpuobj_new(dev, chan, 16, 16, NVOBJ_FLAG_ZERO_FREE, &obj); + if (ret) + return ret; + obj->engine = 2; + obj->class = class; + + nv_wo32(obj, 0x00, class); + nv_wo32(obj, 0x04, 0x00000000); + nv_wo32(obj, 0x08, 0x00000000); + nv_wo32(obj, 0x0c, 0x00000000); + dev_priv->engine.instmem.flush(dev); + + ret = nouveau_ramht_insert(chan, handle, obj); + nouveau_gpuobj_ref(NULL, &obj); + return ret; +} + +static void +nv50_mpeg_tlb_flush(struct drm_device *dev, int engine) +{ + nv50_vm_flush_engine(dev, 0x08); +} + +static int +nv50_mpeg_init(struct drm_device *dev, int engine) +{ + nv_wr32(dev, 0x00b32c, 0x00000000); + nv_wr32(dev, 0x00b314, 0x00000100); + nv_wr32(dev, 0x00b0e0, 0x0000001a); + + nv_wr32(dev, 0x00b220, 0x00000044); + nv_wr32(dev, 0x00b300, 0x00801ec1); + nv_wr32(dev, 0x00b390, 0x00000000); + nv_wr32(dev, 0x00b394, 0x00000000); + nv_wr32(dev, 0x00b398, 0x00000000); + 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 +nv50_mpeg_fini(struct drm_device *dev, int engine) +{ + /*XXX: context save for s/r */ + nv_mask(dev, 0x00b32c, 0x00000001, 0x00000000); + nv_wr32(dev, 0x00b140, 0x00000000); + return 0; +} + +static void +nv50_mpeg_isr(struct drm_device *dev) +{ + 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_wr32(dev, 0x00b308, 0x00000100); + show &= ~0x01000000; + } + } + + if (show && nouveau_ratelimit()) { + NV_INFO(dev, "PMPEG - 0x%08x 0x%08x 0x%08x 0x%08x\n", + stat, type, mthd, data); + } + + nv_wr32(dev, 0x00b100, stat); + nv_wr32(dev, 0x00b230, 0x00000001); + nv50_fb_vm_trap(dev, 1); +} + +static void +nv50_vpe_isr(struct drm_device *dev) +{ + if (nv_rd32(dev, 0x00b100)) + nv50_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 +nv50_mpeg_destroy(struct drm_device *dev, int engine) +{ + struct nv50_mpeg_engine *pmpeg = nv_engine(dev, engine); + + nouveau_irq_unregister(dev, 0); + + NVOBJ_ENGINE_DEL(dev, MPEG); + kfree(pmpeg); +} + +int +nv50_mpeg_create(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nv50_mpeg_engine *pmpeg; + + pmpeg = kzalloc(sizeof(*pmpeg), GFP_KERNEL); + if (!pmpeg) + return -ENOMEM; + + pmpeg->base.destroy = nv50_mpeg_destroy; + pmpeg->base.init = nv50_mpeg_init; + pmpeg->base.fini = nv50_mpeg_fini; + pmpeg->base.context_new = nv50_mpeg_context_new; + pmpeg->base.context_del = nv50_mpeg_context_del; + pmpeg->base.object_new = nv50_mpeg_object_new; + pmpeg->base.tlb_flush = nv50_mpeg_tlb_flush; + + if (dev_priv->chipset == 0x50) { + nouveau_irq_register(dev, 0, nv50_vpe_isr); + NVOBJ_ENGINE_ADD(dev, MPEG, &pmpeg->base); + NVOBJ_CLASS(dev, 0x3174, MPEG); +#if 0 + NVOBJ_ENGINE_ADD(dev, ME, &pme->base); + NVOBJ_CLASS(dev, 0x4075, ME); +#endif + } else { + nouveau_irq_register(dev, 0, nv50_mpeg_isr); + NVOBJ_ENGINE_ADD(dev, MPEG, &pmpeg->base); + NVOBJ_CLASS(dev, 0x8274, MPEG); + } + + return 0; + +} |