--- /dev/null
+/*
+ * 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,
+};
Code Review / kvmfornfv.git / blobdiff