diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/fifo/dmanv40.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/fifo/dmanv40.c | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/dmanv40.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/dmanv40.c new file mode 100644 index 000000000..043b6c325 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/dmanv40.c @@ -0,0 +1,243 @@ +/* + * Copyright 2012 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 "channv04.h" +#include "regsnv04.h" + +#include <core/client.h> +#include <core/ramht.h> +#include <subdev/instmem.h> + +#include <nvif/class.h> +#include <nvif/unpack.h> + +static bool +nv40_fifo_dma_engine(struct nvkm_engine *engine, u32 *reg, u32 *ctx) +{ + switch (engine->subdev.index) { + case NVKM_ENGINE_DMAOBJ: + case NVKM_ENGINE_SW: + return false; + case NVKM_ENGINE_GR: + *reg = 0x0032e0; + *ctx = 0x38; + return true; + case NVKM_ENGINE_MPEG: + *reg = 0x00330c; + *ctx = 0x54; + return true; + default: + WARN_ON(1); + return false; + } +} + +static int +nv40_fifo_dma_engine_fini(struct nvkm_fifo_chan *base, + struct nvkm_engine *engine, bool suspend) +{ + struct nv04_fifo_chan *chan = nv04_fifo_chan(base); + struct nv04_fifo *fifo = chan->fifo; + struct nvkm_device *device = fifo->base.engine.subdev.device; + struct nvkm_instmem *imem = device->imem; + unsigned long flags; + u32 reg, ctx; + int chid; + + if (!nv40_fifo_dma_engine(engine, ®, &ctx)) + return 0; + + spin_lock_irqsave(&fifo->base.lock, flags); + nvkm_mask(device, 0x002500, 0x00000001, 0x00000000); + + chid = nvkm_rd32(device, 0x003204) & (fifo->base.nr - 1); + if (chid == chan->base.chid) + nvkm_wr32(device, reg, 0x00000000); + nvkm_kmap(imem->ramfc); + nvkm_wo32(imem->ramfc, chan->ramfc + ctx, 0x00000000); + nvkm_done(imem->ramfc); + + nvkm_mask(device, 0x002500, 0x00000001, 0x00000001); + spin_unlock_irqrestore(&fifo->base.lock, flags); + return 0; +} + +static int +nv40_fifo_dma_engine_init(struct nvkm_fifo_chan *base, + struct nvkm_engine *engine) +{ + struct nv04_fifo_chan *chan = nv04_fifo_chan(base); + struct nv04_fifo *fifo = chan->fifo; + struct nvkm_device *device = fifo->base.engine.subdev.device; + struct nvkm_instmem *imem = device->imem; + unsigned long flags; + u32 inst, reg, ctx; + int chid; + + if (!nv40_fifo_dma_engine(engine, ®, &ctx)) + return 0; + inst = chan->engn[engine->subdev.index]->addr >> 4; + + spin_lock_irqsave(&fifo->base.lock, flags); + nvkm_mask(device, 0x002500, 0x00000001, 0x00000000); + + chid = nvkm_rd32(device, 0x003204) & (fifo->base.nr - 1); + if (chid == chan->base.chid) + nvkm_wr32(device, reg, inst); + nvkm_kmap(imem->ramfc); + nvkm_wo32(imem->ramfc, chan->ramfc + ctx, inst); + nvkm_done(imem->ramfc); + + nvkm_mask(device, 0x002500, 0x00000001, 0x00000001); + spin_unlock_irqrestore(&fifo->base.lock, flags); + return 0; +} + +static void +nv40_fifo_dma_engine_dtor(struct nvkm_fifo_chan *base, + struct nvkm_engine *engine) +{ + struct nv04_fifo_chan *chan = nv04_fifo_chan(base); + nvkm_gpuobj_del(&chan->engn[engine->subdev.index]); +} + +static int +nv40_fifo_dma_engine_ctor(struct nvkm_fifo_chan *base, + struct nvkm_engine *engine, + struct nvkm_object *object) +{ + struct nv04_fifo_chan *chan = nv04_fifo_chan(base); + const int engn = engine->subdev.index; + u32 reg, ctx; + + if (!nv40_fifo_dma_engine(engine, ®, &ctx)) + return 0; + + return nvkm_object_bind(object, NULL, 0, &chan->engn[engn]); +} + +static int +nv40_fifo_dma_object_ctor(struct nvkm_fifo_chan *base, + struct nvkm_object *object) +{ + struct nv04_fifo_chan *chan = nv04_fifo_chan(base); + struct nvkm_instmem *imem = chan->fifo->base.engine.subdev.device->imem; + u32 context = chan->base.chid << 23; + u32 handle = object->handle; + int hash; + + switch (object->engine->subdev.index) { + case NVKM_ENGINE_DMAOBJ: + case NVKM_ENGINE_SW : context |= 0x00000000; break; + case NVKM_ENGINE_GR : context |= 0x00100000; break; + case NVKM_ENGINE_MPEG : context |= 0x00200000; break; + default: + WARN_ON(1); + return -EINVAL; + } + + mutex_lock(&chan->fifo->base.engine.subdev.mutex); + hash = nvkm_ramht_insert(imem->ramht, object, chan->base.chid, 4, + handle, context); + mutex_unlock(&chan->fifo->base.engine.subdev.mutex); + return hash; +} + +static const struct nvkm_fifo_chan_func +nv40_fifo_dma_func = { + .dtor = nv04_fifo_dma_dtor, + .init = nv04_fifo_dma_init, + .fini = nv04_fifo_dma_fini, + .engine_ctor = nv40_fifo_dma_engine_ctor, + .engine_dtor = nv40_fifo_dma_engine_dtor, + .engine_init = nv40_fifo_dma_engine_init, + .engine_fini = nv40_fifo_dma_engine_fini, + .object_ctor = nv40_fifo_dma_object_ctor, + .object_dtor = nv04_fifo_dma_object_dtor, +}; + +static int +nv40_fifo_dma_new(struct nvkm_fifo *base, const struct nvkm_oclass *oclass, + void *data, u32 size, struct nvkm_object **pobject) +{ + struct nvkm_object *parent = oclass->parent; + union { + struct nv03_channel_dma_v0 v0; + } *args = data; + struct nv04_fifo *fifo = nv04_fifo(base); + struct nv04_fifo_chan *chan = NULL; + struct nvkm_device *device = fifo->base.engine.subdev.device; + struct nvkm_instmem *imem = device->imem; + int ret; + + nvif_ioctl(parent, "create channel dma size %d\n", size); + if (nvif_unpack(args->v0, 0, 0, false)) { + nvif_ioctl(parent, "create channel dma vers %d pushbuf %llx " + "offset %08x\n", args->v0.version, + args->v0.pushbuf, args->v0.offset); + if (!args->v0.pushbuf) + return -EINVAL; + } else + return ret; + + if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL))) + return -ENOMEM; + *pobject = &chan->base.object; + + ret = nvkm_fifo_chan_ctor(&nv40_fifo_dma_func, &fifo->base, + 0x1000, 0x1000, false, 0, args->v0.pushbuf, + (1ULL << NVKM_ENGINE_DMAOBJ) | + (1ULL << NVKM_ENGINE_GR) | + (1ULL << NVKM_ENGINE_MPEG) | + (1ULL << NVKM_ENGINE_SW), + 0, 0xc00000, 0x1000, oclass, &chan->base); + chan->fifo = fifo; + if (ret) + return ret; + + args->v0.chid = chan->base.chid; + chan->ramfc = chan->base.chid * 128; + + nvkm_kmap(imem->ramfc); + nvkm_wo32(imem->ramfc, chan->ramfc + 0x00, args->v0.offset); + nvkm_wo32(imem->ramfc, chan->ramfc + 0x04, args->v0.offset); + nvkm_wo32(imem->ramfc, chan->ramfc + 0x0c, chan->base.push->addr >> 4); + nvkm_wo32(imem->ramfc, chan->ramfc + 0x18, 0x30000000 | + NV_PFIFO_CACHE1_DMA_FETCH_TRIG_128_BYTES | + NV_PFIFO_CACHE1_DMA_FETCH_SIZE_128_BYTES | +#ifdef __BIG_ENDIAN + NV_PFIFO_CACHE1_BIG_ENDIAN | +#endif + NV_PFIFO_CACHE1_DMA_FETCH_MAX_REQS_8); + nvkm_wo32(imem->ramfc, chan->ramfc + 0x3c, 0x0001ffff); + nvkm_done(imem->ramfc); + return 0; +} + +const struct nvkm_fifo_chan_oclass +nv40_fifo_dma_oclass = { + .base.oclass = NV40_CHANNEL_DMA, + .base.minver = 0, + .base.maxver = 0, + .ctor = nv40_fifo_dma_new, +}; |