diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/dmaobj/nv50.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/dmaobj/nv50.c | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/dmaobj/nv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/dmaobj/nv50.c new file mode 100644 index 000000000000..4d3c828fe0e6 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/engine/dmaobj/nv50.c @@ -0,0 +1,195 @@ +/* + * 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/client.h> +#include <core/gpuobj.h> +#include <subdev/fb.h> + +#include <nvif/class.h> +#include <nvif/unpack.h> + +struct nv50_dmaobj_priv { + struct nvkm_dmaobj base; + u32 flags0; + u32 flags5; +}; + +static int +nv50_dmaobj_bind(struct nvkm_dmaobj *dmaobj, struct nvkm_object *parent, + struct nvkm_gpuobj **pgpuobj) +{ + struct nv50_dmaobj_priv *priv = (void *)dmaobj; + int ret; + + if (!nv_iclass(parent, NV_ENGCTX_CLASS)) { + switch (nv_mclass(parent->parent)) { + case NV40_CHANNEL_DMA: + case NV50_CHANNEL_GPFIFO: + case G82_CHANNEL_GPFIFO: + case NV50_DISP_CORE_CHANNEL_DMA: + case G82_DISP_CORE_CHANNEL_DMA: + case GT206_DISP_CORE_CHANNEL_DMA: + case GT200_DISP_CORE_CHANNEL_DMA: + case GT214_DISP_CORE_CHANNEL_DMA: + case NV50_DISP_BASE_CHANNEL_DMA: + case G82_DISP_BASE_CHANNEL_DMA: + case GT200_DISP_BASE_CHANNEL_DMA: + case GT214_DISP_BASE_CHANNEL_DMA: + case NV50_DISP_OVERLAY_CHANNEL_DMA: + case G82_DISP_OVERLAY_CHANNEL_DMA: + case GT200_DISP_OVERLAY_CHANNEL_DMA: + case GT214_DISP_OVERLAY_CHANNEL_DMA: + break; + default: + return -EINVAL; + } + } + + ret = nvkm_gpuobj_new(parent, parent, 24, 32, 0, pgpuobj); + if (ret == 0) { + nv_wo32(*pgpuobj, 0x00, priv->flags0 | nv_mclass(dmaobj)); + nv_wo32(*pgpuobj, 0x04, lower_32_bits(priv->base.limit)); + nv_wo32(*pgpuobj, 0x08, lower_32_bits(priv->base.start)); + nv_wo32(*pgpuobj, 0x0c, upper_32_bits(priv->base.limit) << 24 | + upper_32_bits(priv->base.start)); + nv_wo32(*pgpuobj, 0x10, 0x00000000); + nv_wo32(*pgpuobj, 0x14, priv->flags5); + } + + return ret; +} + +static int +nv50_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; + union { + struct nv50_dma_v0 v0; + } *args; + struct nv50_dmaobj_priv *priv; + u32 user, part, comp, kind; + 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 nv50 dma size %d\n", size); + if (nvif_unpack(args->v0, 0, 0, false)) { + nv_ioctl(parent, "create nv50 dma vers %d priv %d part %d " + "comp %d kind %02x\n", args->v0.version, + args->v0.priv, args->v0.part, args->v0.comp, + args->v0.kind); + user = args->v0.priv; + part = args->v0.part; + comp = args->v0.comp; + kind = args->v0.kind; + } else + if (size == 0) { + if (priv->base.target != NV_MEM_TARGET_VM) { + user = NV50_DMA_V0_PRIV_US; + part = NV50_DMA_V0_PART_256; + comp = NV50_DMA_V0_COMP_NONE; + kind = NV50_DMA_V0_KIND_PITCH; + } else { + user = NV50_DMA_V0_PRIV_VM; + part = NV50_DMA_V0_PART_VM; + comp = NV50_DMA_V0_COMP_VM; + kind = NV50_DMA_V0_KIND_VM; + } + } else + return ret; + + if (user > 2 || part > 2 || comp > 3 || kind > 0x7f) + return -EINVAL; + priv->flags0 = (comp << 29) | (kind << 22) | (user << 20); + priv->flags5 = (part << 16); + + switch (priv->base.target) { + case NV_MEM_TARGET_VM: + priv->flags0 |= 0x00000000; + break; + case NV_MEM_TARGET_VRAM: + priv->flags0 |= 0x00010000; + break; + case NV_MEM_TARGET_PCI: + priv->flags0 |= 0x00020000; + break; + case NV_MEM_TARGET_PCI_NOSNOOP: + priv->flags0 |= 0x00030000; + break; + default: + return -EINVAL; + } + + switch (priv->base.access) { + case NV_MEM_ACCESS_VM: + break; + case NV_MEM_ACCESS_RO: + priv->flags0 |= 0x00040000; + break; + case NV_MEM_ACCESS_WO: + case NV_MEM_ACCESS_RW: + priv->flags0 |= 0x00080000; + break; + default: + return -EINVAL; + } + + return dmaeng->bind(&priv->base, nv_object(priv), (void *)pobject); +} + +static struct nvkm_ofuncs +nv50_dmaobj_ofuncs = { + .ctor = nv50_dmaobj_ctor, + .dtor = _nvkm_dmaobj_dtor, + .init = _nvkm_dmaobj_init, + .fini = _nvkm_dmaobj_fini, +}; + +static struct nvkm_oclass +nv50_dmaeng_sclass[] = { + { NV_DMA_FROM_MEMORY, &nv50_dmaobj_ofuncs }, + { NV_DMA_TO_MEMORY, &nv50_dmaobj_ofuncs }, + { NV_DMA_IN_MEMORY, &nv50_dmaobj_ofuncs }, + {} +}; + +struct nvkm_oclass * +nv50_dmaeng_oclass = &(struct nvkm_dmaeng_impl) { + .base.handle = NV_ENGINE(DMAOBJ, 0x50), + .base.ofuncs = &(struct nvkm_ofuncs) { + .ctor = _nvkm_dmaeng_ctor, + .dtor = _nvkm_dmaeng_dtor, + .init = _nvkm_dmaeng_init, + .fini = _nvkm_dmaeng_fini, + }, + .sclass = nv50_dmaeng_sclass, + .bind = nv50_dmaobj_bind, +}.base; |