diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/fifo/channv50.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/fifo/channv50.c | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/channv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/channv50.c new file mode 100644 index 0000000..aeaba7b --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/channv50.c @@ -0,0 +1,259 @@ +/* + * 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 "channv50.h" + +#include <core/client.h> +#include <core/ramht.h> +#include <subdev/timer.h> + +int +nv50_fifo_context_detach(struct nvkm_object *parent, bool suspend, + struct nvkm_object *object) +{ + struct nv50_fifo *fifo = (void *)parent->engine; + struct nv50_fifo_base *base = (void *)parent->parent; + struct nv50_fifo_chan *chan = (void *)parent; + struct nvkm_subdev *subdev = &fifo->base.engine.subdev; + struct nvkm_device *device = subdev->device; + u32 addr, me; + int ret = 0; + + switch (nv_engidx(object->engine)) { + case NVDEV_ENGINE_SW : return 0; + case NVDEV_ENGINE_GR : addr = 0x0000; break; + case NVDEV_ENGINE_MPEG : addr = 0x0060; break; + default: + return -EINVAL; + } + + /* HW bug workaround: + * + * PFIFO will hang forever if the connected engines don't report + * that they've processed the context switch request. + * + * In order for the kickoff to work, we need to ensure all the + * connected engines are in a state where they can answer. + * + * Newer chipsets don't seem to suffer from this issue, and well, + * there's also a "ignore these engines" bitmask reg we can use + * if we hit the issue there.. + */ + me = nvkm_mask(device, 0x00b860, 0x00000001, 0x00000001); + + /* do the kickoff... */ + nvkm_wr32(device, 0x0032fc, nv_gpuobj(base)->addr >> 12); + if (nvkm_msec(device, 2000, + if (nvkm_rd32(device, 0x0032fc) != 0xffffffff) + break; + ) < 0) { + nvkm_error(subdev, "channel %d [%s] unload timeout\n", + chan->base.chid, nvkm_client_name(chan)); + if (suspend) + ret = -EBUSY; + } + nvkm_wr32(device, 0x00b860, me); + + if (ret == 0) { + nvkm_kmap(base->eng); + nvkm_wo32(base->eng, addr + 0x00, 0x00000000); + nvkm_wo32(base->eng, addr + 0x04, 0x00000000); + nvkm_wo32(base->eng, addr + 0x08, 0x00000000); + nvkm_wo32(base->eng, addr + 0x0c, 0x00000000); + nvkm_wo32(base->eng, addr + 0x10, 0x00000000); + nvkm_wo32(base->eng, addr + 0x14, 0x00000000); + nvkm_done(base->eng); + } + + return ret; +} + +int +nv50_fifo_context_attach(struct nvkm_object *parent, struct nvkm_object *object) +{ + struct nv50_fifo_base *base = (void *)parent->parent; + struct nvkm_gpuobj *ectx = (void *)object; + u64 limit = ectx->addr + ectx->size - 1; + u64 start = ectx->addr; + u32 addr; + + switch (nv_engidx(object->engine)) { + case NVDEV_ENGINE_SW : return 0; + case NVDEV_ENGINE_GR : addr = 0x0000; break; + case NVDEV_ENGINE_MPEG : addr = 0x0060; break; + default: + return -EINVAL; + } + + nv_engctx(ectx)->addr = nv_gpuobj(base)->addr >> 12; + + nvkm_kmap(base->eng); + nvkm_wo32(base->eng, addr + 0x00, 0x00190000); + nvkm_wo32(base->eng, addr + 0x04, lower_32_bits(limit)); + nvkm_wo32(base->eng, addr + 0x08, lower_32_bits(start)); + nvkm_wo32(base->eng, addr + 0x0c, upper_32_bits(limit) << 24 | + upper_32_bits(start)); + nvkm_wo32(base->eng, addr + 0x10, 0x00000000); + nvkm_wo32(base->eng, addr + 0x14, 0x00000000); + nvkm_done(base->eng); + return 0; +} + +void +nv50_fifo_object_detach(struct nvkm_object *parent, int cookie) +{ + struct nv50_fifo_chan *chan = (void *)parent; + nvkm_ramht_remove(chan->ramht, cookie); +} + +int +nv50_fifo_object_attach(struct nvkm_object *parent, + struct nvkm_object *object, u32 handle) +{ + struct nv50_fifo_chan *chan = (void *)parent; + u32 context; + + if (nv_iclass(object, NV_GPUOBJ_CLASS)) + context = nv_gpuobj(object)->node->offset >> 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; + } + } + + return nvkm_ramht_insert(chan->ramht, NULL, 0, 0, handle, context); +} + +int +nv50_fifo_chan_fini(struct nvkm_object *object, bool suspend) +{ + struct nv50_fifo *fifo = (void *)object->engine; + struct nv50_fifo_chan *chan = (void *)object; + struct nvkm_device *device = fifo->base.engine.subdev.device; + u32 chid = chan->base.chid; + + /* remove channel from runlist, fifo will unload context */ + nvkm_mask(device, 0x002600 + (chid * 4), 0x80000000, 0x00000000); + nv50_fifo_runlist_update(fifo); + nvkm_wr32(device, 0x002600 + (chid * 4), 0x00000000); + + return nvkm_fifo_channel_fini(&chan->base, suspend); +} + +int +nv50_fifo_chan_init(struct nvkm_object *object) +{ + struct nv50_fifo *fifo = (void *)object->engine; + struct nv50_fifo_base *base = (void *)object->parent; + struct nv50_fifo_chan *chan = (void *)object; + struct nvkm_gpuobj *ramfc = base->ramfc; + struct nvkm_device *device = fifo->base.engine.subdev.device; + u32 chid = chan->base.chid; + int ret; + + ret = nvkm_fifo_channel_init(&chan->base); + if (ret) + return ret; + + nvkm_wr32(device, 0x002600 + (chid * 4), 0x80000000 | ramfc->addr >> 12); + nv50_fifo_runlist_update(fifo); + return 0; +} + +void +nv50_fifo_chan_dtor(struct nvkm_object *object) +{ + struct nv50_fifo_chan *chan = (void *)object; + nvkm_ramht_del(&chan->ramht); + nvkm_fifo_channel_destroy(&chan->base); +} + +void +nv50_fifo_context_dtor(struct nvkm_object *object) +{ + struct nv50_fifo_base *base = (void *)object; + nvkm_vm_ref(NULL, &base->vm, base->pgd); + nvkm_gpuobj_del(&base->pgd); + nvkm_gpuobj_del(&base->eng); + nvkm_gpuobj_del(&base->ramfc); + nvkm_gpuobj_del(&base->cache); + nvkm_fifo_context_destroy(&base->base); +} + +static int +nv50_fifo_context_ctor(struct nvkm_object *parent, struct nvkm_object *engine, + struct nvkm_oclass *oclass, void *data, u32 size, + struct nvkm_object **pobject) +{ + struct nvkm_device *device = nv_engine(engine)->subdev.device; + struct nv50_fifo_base *base; + int ret; + + ret = nvkm_fifo_context_create(parent, engine, oclass, NULL, 0x10000, + 0x1000, NVOBJ_FLAG_HEAP, &base); + *pobject = nv_object(base); + if (ret) + return ret; + + ret = nvkm_gpuobj_new(device, 0x0200, 0x1000, true, &base->base.gpuobj, + &base->ramfc); + if (ret) + return ret; + + ret = nvkm_gpuobj_new(device, 0x1200, 0, true, &base->base.gpuobj, + &base->eng); + if (ret) + return ret; + + ret = nvkm_gpuobj_new(device, 0x4000, 0, false, &base->base.gpuobj, + &base->pgd); + if (ret) + return ret; + + ret = nvkm_vm_ref(nvkm_client(parent)->vm, &base->vm, base->pgd); + if (ret) + return ret; + + return 0; +} + +struct nvkm_oclass +nv50_fifo_cclass = { + .handle = NV_ENGCTX(FIFO, 0x50), + .ofuncs = &(struct nvkm_ofuncs) { + .ctor = nv50_fifo_context_ctor, + .dtor = nv50_fifo_context_dtor, + .init = _nvkm_fifo_context_init, + .fini = _nvkm_fifo_context_fini, + .rd32 = _nvkm_fifo_context_rd32, + .wr32 = _nvkm_fifo_context_wr32, + }, +}; |