diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/dmaobj/nvd0.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/dmaobj/nvd0.c | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/dmaobj/nvd0.c b/drivers/gpu/drm/nouveau/nvkm/engine/dmaobj/nvd0.c new file mode 100644 index 000000000000..19f5f6522962 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/engine/dmaobj/nvd0.c @@ -0,0 +1,168 @@ +/* + * 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 <core/client.h> +#include <core/device.h> +#include <core/gpuobj.h> +#include <nvif/unpack.h> +#include <nvif/class.h> + +#include <subdev/fb.h> + +#include "priv.h" + +struct nvd0_dmaobj_priv { + struct nouveau_dmaobj base; + u32 flags0; +}; + +static int +nvd0_dmaobj_bind(struct nouveau_dmaobj *dmaobj, + struct nouveau_object *parent, + struct nouveau_gpuobj **pgpuobj) +{ + struct nvd0_dmaobj_priv *priv = (void *)dmaobj; + int ret; + + if (!nv_iclass(parent, NV_ENGCTX_CLASS)) { + switch (nv_mclass(parent->parent)) { + case GF110_DISP_CORE_CHANNEL_DMA: + case GK104_DISP_CORE_CHANNEL_DMA: + case GK110_DISP_CORE_CHANNEL_DMA: + case GM107_DISP_CORE_CHANNEL_DMA: + case GM204_DISP_CORE_CHANNEL_DMA: + case GF110_DISP_BASE_CHANNEL_DMA: + case GK104_DISP_BASE_CHANNEL_DMA: + case GK110_DISP_BASE_CHANNEL_DMA: + case GF110_DISP_OVERLAY_CONTROL_DMA: + case GK104_DISP_OVERLAY_CONTROL_DMA: + break; + default: + return -EINVAL; + } + } else + return 0; + + ret = nouveau_gpuobj_new(parent, parent, 24, 32, 0, pgpuobj); + if (ret == 0) { + nv_wo32(*pgpuobj, 0x00, priv->flags0); + nv_wo32(*pgpuobj, 0x04, priv->base.start >> 8); + nv_wo32(*pgpuobj, 0x08, priv->base.limit >> 8); + nv_wo32(*pgpuobj, 0x0c, 0x00000000); + nv_wo32(*pgpuobj, 0x10, 0x00000000); + nv_wo32(*pgpuobj, 0x14, 0x00000000); + } + + return ret; +} + +static int +nvd0_dmaobj_ctor(struct nouveau_object *parent, struct nouveau_object *engine, + struct nouveau_oclass *oclass, void *data, u32 size, + struct nouveau_object **pobject) +{ + struct nouveau_dmaeng *dmaeng = (void *)engine; + union { + struct gf110_dma_v0 v0; + } *args; + struct nvd0_dmaobj_priv *priv; + u32 kind, page; + int ret; + + ret = nvkm_dmaobj_create(parent, engine, oclass, &data, &size, &priv); + *pobject = nv_object(priv); + if (ret) + return ret; + args = data; + + nv_ioctl(parent, "create gf110 dma size %d\n", size); + if (nvif_unpack(args->v0, 0, 0, false)) { + nv_ioctl(parent, "create gf100 dma vers %d page %d kind %02x\n", + args->v0.version, args->v0.page, args->v0.kind); + kind = args->v0.kind; + page = args->v0.page; + } else + if (size == 0) { + if (priv->base.target != NV_MEM_TARGET_VM) { + kind = GF110_DMA_V0_KIND_PITCH; + page = GF110_DMA_V0_PAGE_SP; + } else { + kind = GF110_DMA_V0_KIND_VM; + page = GF110_DMA_V0_PAGE_LP; + } + } else + return ret; + + if (page > 1) + return -EINVAL; + priv->flags0 = (kind << 20) | (page << 6); + + switch (priv->base.target) { + case NV_MEM_TARGET_VRAM: + priv->flags0 |= 0x00000009; + break; + case NV_MEM_TARGET_VM: + case NV_MEM_TARGET_PCI: + case NV_MEM_TARGET_PCI_NOSNOOP: + /* XXX: don't currently know how to construct a real one + * of these. we only use them to represent pushbufs + * on these chipsets, and the classes that use them + * deal with the target themselves. + */ + break; + default: + return -EINVAL; + } + + return dmaeng->bind(&priv->base, nv_object(priv), (void *)pobject); +} + +static struct nouveau_ofuncs +nvd0_dmaobj_ofuncs = { + .ctor = nvd0_dmaobj_ctor, + .dtor = _nvkm_dmaobj_dtor, + .init = _nvkm_dmaobj_init, + .fini = _nvkm_dmaobj_fini, +}; + +static struct nouveau_oclass +nvd0_dmaeng_sclass[] = { + { NV_DMA_FROM_MEMORY, &nvd0_dmaobj_ofuncs }, + { NV_DMA_TO_MEMORY, &nvd0_dmaobj_ofuncs }, + { NV_DMA_IN_MEMORY, &nvd0_dmaobj_ofuncs }, + {} +}; + +struct nouveau_oclass * +nvd0_dmaeng_oclass = &(struct nvkm_dmaeng_impl) { + .base.handle = NV_ENGINE(DMAOBJ, 0xd0), + .base.ofuncs = &(struct nouveau_ofuncs) { + .ctor = _nvkm_dmaeng_ctor, + .dtor = _nvkm_dmaeng_dtor, + .init = _nvkm_dmaeng_init, + .fini = _nvkm_dmaeng_fini, + }, + .sclass = nvd0_dmaeng_sclass, + .bind = nvd0_dmaobj_bind, +}.base; |
