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path: root/drivers/gpu/drm/nouveau/nvkm/engine/fifo/dmanv40.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/fifo/dmanv40.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/engine/fifo/dmanv40.c225
1 files changed, 225 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 000000000000..cd3503cb6837
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/dmanv40.c
@@ -0,0 +1,225 @@
+/*
+ * 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 int
+nv40_fifo_context_detach(struct nvkm_object *parent, bool suspend,
+ struct nvkm_object *engctx)
+{
+ struct nv04_fifo *fifo = (void *)parent->engine;
+ struct nv04_fifo_chan *chan = (void *)parent;
+ struct nvkm_device *device = fifo->base.engine.subdev.device;
+ struct nvkm_instmem *imem = device->imem;
+ unsigned long flags;
+ u32 reg, ctx;
+
+ switch (nv_engidx(engctx->engine)) {
+ case NVDEV_ENGINE_SW:
+ return 0;
+ case NVDEV_ENGINE_GR:
+ reg = 0x32e0;
+ ctx = 0x38;
+ break;
+ case NVDEV_ENGINE_MPEG:
+ reg = 0x330c;
+ ctx = 0x54;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ spin_lock_irqsave(&fifo->base.lock, flags);
+ nvkm_mask(device, 0x002500, 0x00000001, 0x00000000);
+
+ if ((nvkm_rd32(device, 0x003204) & fifo->base.max) == 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_context_attach(struct nvkm_object *parent, struct nvkm_object *engctx)
+{
+ struct nv04_fifo *fifo = (void *)parent->engine;
+ struct nv04_fifo_chan *chan = (void *)parent;
+ struct nvkm_device *device = fifo->base.engine.subdev.device;
+ struct nvkm_instmem *imem = device->imem;
+ unsigned long flags;
+ u32 reg, ctx;
+
+ switch (nv_engidx(engctx->engine)) {
+ case NVDEV_ENGINE_SW:
+ return 0;
+ case NVDEV_ENGINE_GR:
+ reg = 0x32e0;
+ ctx = 0x38;
+ break;
+ case NVDEV_ENGINE_MPEG:
+ reg = 0x330c;
+ ctx = 0x54;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ spin_lock_irqsave(&fifo->base.lock, flags);
+ nv_engctx(engctx)->addr = nv_gpuobj(engctx)->addr >> 4;
+ nvkm_mask(device, 0x002500, 0x00000001, 0x00000000);
+
+ if ((nvkm_rd32(device, 0x003204) & fifo->base.max) == chan->base.chid)
+ nvkm_wr32(device, reg, nv_engctx(engctx)->addr);
+ nvkm_kmap(imem->ramfc);
+ nvkm_wo32(imem->ramfc, chan->ramfc + ctx, nv_engctx(engctx)->addr);
+ nvkm_done(imem->ramfc);
+
+ nvkm_mask(device, 0x002500, 0x00000001, 0x00000001);
+ spin_unlock_irqrestore(&fifo->base.lock, flags);
+ return 0;
+}
+
+static int
+nv40_fifo_object_attach(struct nvkm_object *parent,
+ struct nvkm_object *object, u32 handle)
+{
+ struct nv04_fifo *fifo = (void *)parent->engine;
+ struct nv04_fifo_chan *chan = (void *)parent;
+ struct nvkm_instmem *imem = fifo->base.engine.subdev.device->imem;
+ u32 context, chid = chan->base.chid;
+ int ret;
+
+ if (nv_iclass(object, NV_GPUOBJ_CLASS))
+ context = nv_gpuobj(object)->addr >> 4;
+ else
+ context = 0x00000004; /* just non-zero */
+
+ if (object->engine) {
+ switch (nv_engidx(object->engine)) {
+ case NVDEV_ENGINE_DMAOBJ:
+ case NVDEV_ENGINE_SW:
+ context |= 0x00000000;
+ break;
+ case NVDEV_ENGINE_GR:
+ context |= 0x00100000;
+ break;
+ case NVDEV_ENGINE_MPEG:
+ context |= 0x00200000;
+ break;
+ default:
+ return -EINVAL;
+ }
+ }
+
+ context |= chid << 23;
+
+ mutex_lock(&nv_subdev(fifo)->mutex);
+ ret = nvkm_ramht_insert(imem->ramht, NULL, chid, 0, handle, context);
+ mutex_unlock(&nv_subdev(fifo)->mutex);
+ return ret;
+}
+
+static int
+nv40_fifo_chan_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
+ struct nvkm_oclass *oclass, void *data, u32 size,
+ struct nvkm_object **pobject)
+{
+ union {
+ struct nv03_channel_dma_v0 v0;
+ } *args = data;
+ struct nv04_fifo *fifo = (void *)engine;
+ struct nvkm_instmem *imem = fifo->base.engine.subdev.device->imem;
+ struct nv04_fifo_chan *chan;
+ 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);
+ } else
+ return ret;
+
+ ret = nvkm_fifo_channel_create(parent, engine, oclass, 0, 0xc00000,
+ 0x1000, args->v0.pushbuf,
+ (1ULL << NVDEV_ENGINE_DMAOBJ) |
+ (1ULL << NVDEV_ENGINE_SW) |
+ (1ULL << NVDEV_ENGINE_GR) |
+ (1ULL << NVDEV_ENGINE_MPEG), &chan);
+ *pobject = nv_object(chan);
+ if (ret)
+ return ret;
+
+ args->v0.chid = chan->base.chid;
+
+ nv_parent(chan)->context_attach = nv40_fifo_context_attach;
+ nv_parent(chan)->context_detach = nv40_fifo_context_detach;
+ nv_parent(chan)->object_attach = nv40_fifo_object_attach;
+ nv_parent(chan)->object_detach = nv04_fifo_object_detach;
+ 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.pushgpu->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;
+}
+
+static struct nvkm_ofuncs
+nv40_fifo_ofuncs = {
+ .ctor = nv40_fifo_chan_ctor,
+ .dtor = nv04_fifo_chan_dtor,
+ .init = nv04_fifo_chan_init,
+ .fini = nv04_fifo_chan_fini,
+ .map = _nvkm_fifo_channel_map,
+ .rd32 = _nvkm_fifo_channel_rd32,
+ .wr32 = _nvkm_fifo_channel_wr32,
+ .ntfy = _nvkm_fifo_channel_ntfy
+};
+
+struct nvkm_oclass
+nv40_fifo_sclass[] = {
+ { NV40_CHANNEL_DMA, &nv40_fifo_ofuncs },
+ {}
+};
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