+++ /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 "priv.h"
-
-#include <core/gpuobj.h>
-#include <subdev/fb.h>
-#include <subdev/mmu/nv04.h>
-
-#include <nvif/class.h>
-
-struct nv04_dmaobj_priv {
- struct nvkm_dmaobj base;
- bool clone;
- u32 flags0;
- u32 flags2;
-};
-
-static int
-nv04_dmaobj_bind(struct nvkm_dmaobj *dmaobj, struct nvkm_object *parent,
- struct nvkm_gpuobj **pgpuobj)
-{
- struct nv04_dmaobj_priv *priv = (void *)dmaobj;
- struct nvkm_gpuobj *gpuobj;
- u64 offset = priv->base.start & 0xfffff000;
- u64 adjust = priv->base.start & 0x00000fff;
- u32 length = priv->base.limit - priv->base.start;
- int ret;
-
- if (!nv_iclass(parent, NV_ENGCTX_CLASS)) {
- switch (nv_mclass(parent->parent)) {
- case NV03_CHANNEL_DMA:
- case NV10_CHANNEL_DMA:
- case NV17_CHANNEL_DMA:
- case NV40_CHANNEL_DMA:
- break;
- default:
- return -EINVAL;
- }
- }
-
- if (priv->clone) {
- struct nv04_mmu_priv *mmu = nv04_mmu(dmaobj);
- struct nvkm_gpuobj *pgt = mmu->vm->pgt[0].obj[0];
- if (!dmaobj->start)
- return nvkm_gpuobj_dup(parent, pgt, pgpuobj);
- offset = nv_ro32(pgt, 8 + (offset >> 10));
- offset &= 0xfffff000;
- }
-
- ret = nvkm_gpuobj_new(parent, parent, 16, 16, 0, &gpuobj);
- *pgpuobj = gpuobj;
- if (ret == 0) {
- nv_wo32(*pgpuobj, 0x00, priv->flags0 | (adjust << 20));
- nv_wo32(*pgpuobj, 0x04, length);
- nv_wo32(*pgpuobj, 0x08, priv->flags2 | offset);
- nv_wo32(*pgpuobj, 0x0c, priv->flags2 | offset);
- }
-
- return ret;
-}
-
-static int
-nv04_dmaobj_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
- struct nvkm_oclass *oclass, void *data, u32 size,
- struct nvkm_object **pobject)
-{
- struct nvkm_dmaeng *dmaeng = (void *)engine;
- struct nv04_mmu_priv *mmu = nv04_mmu(engine);
- struct nv04_dmaobj_priv *priv;
- int ret;
-
- ret = nvkm_dmaobj_create(parent, engine, oclass, &data, &size, &priv);
- *pobject = nv_object(priv);
- if (ret || (ret = -ENOSYS, size))
- return ret;
-
- if (priv->base.target == NV_MEM_TARGET_VM) {
- if (nv_object(mmu)->oclass == &nv04_mmu_oclass)
- priv->clone = true;
- priv->base.target = NV_MEM_TARGET_PCI;
- priv->base.access = NV_MEM_ACCESS_RW;
- }
-
- priv->flags0 = nv_mclass(priv);
- switch (priv->base.target) {
- case NV_MEM_TARGET_VRAM:
- priv->flags0 |= 0x00003000;
- break;
- case NV_MEM_TARGET_PCI:
- priv->flags0 |= 0x00023000;
- break;
- case NV_MEM_TARGET_PCI_NOSNOOP:
- priv->flags0 |= 0x00033000;
- break;
- default:
- return -EINVAL;
- }
-
- switch (priv->base.access) {
- case NV_MEM_ACCESS_RO:
- priv->flags0 |= 0x00004000;
- break;
- case NV_MEM_ACCESS_WO:
- priv->flags0 |= 0x00008000;
- case NV_MEM_ACCESS_RW:
- priv->flags2 |= 0x00000002;
- break;
- default:
- return -EINVAL;
- }
-
- return dmaeng->bind(&priv->base, nv_object(priv), (void *)pobject);
-}
-
-static struct nvkm_ofuncs
-nv04_dmaobj_ofuncs = {
- .ctor = nv04_dmaobj_ctor,
- .dtor = _nvkm_dmaobj_dtor,
- .init = _nvkm_dmaobj_init,
- .fini = _nvkm_dmaobj_fini,
-};
-
-static struct nvkm_oclass
-nv04_dmaeng_sclass[] = {
- { NV_DMA_FROM_MEMORY, &nv04_dmaobj_ofuncs },
- { NV_DMA_TO_MEMORY, &nv04_dmaobj_ofuncs },
- { NV_DMA_IN_MEMORY, &nv04_dmaobj_ofuncs },
- {}
-};
-
-struct nvkm_oclass *
-nv04_dmaeng_oclass = &(struct nvkm_dmaeng_impl) {
- .base.handle = NV_ENGINE(DMAOBJ, 0x04),
- .base.ofuncs = &(struct nvkm_ofuncs) {
- .ctor = _nvkm_dmaeng_ctor,
- .dtor = _nvkm_dmaeng_dtor,
- .init = _nvkm_dmaeng_init,
- .fini = _nvkm_dmaeng_fini,
- },
- .sclass = nv04_dmaeng_sclass,
- .bind = nv04_dmaobj_bind,
-}.base;
Code Review / kvmfornfv.git / blobdiff