16fb566b9SBen Skeggs /*
26fb566b9SBen Skeggs * Copyright 2018 Red Hat Inc.
36fb566b9SBen Skeggs *
46fb566b9SBen Skeggs * Permission is hereby granted, free of charge, to any person obtaining a
56fb566b9SBen Skeggs * copy of this software and associated documentation files (the "Software"),
66fb566b9SBen Skeggs * to deal in the Software without restriction, including without limitation
76fb566b9SBen Skeggs * the rights to use, copy, modify, merge, publish, distribute, sublicense,
86fb566b9SBen Skeggs * and/or sell copies of the Software, and to permit persons to whom the
96fb566b9SBen Skeggs * Software is furnished to do so, subject to the following conditions:
106fb566b9SBen Skeggs *
116fb566b9SBen Skeggs * The above copyright notice and this permission notice shall be included in
126fb566b9SBen Skeggs * all copies or substantial portions of the Software.
136fb566b9SBen Skeggs *
146fb566b9SBen Skeggs * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
156fb566b9SBen Skeggs * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
166fb566b9SBen Skeggs * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
176fb566b9SBen Skeggs * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
186fb566b9SBen Skeggs * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
196fb566b9SBen Skeggs * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
206fb566b9SBen Skeggs * OTHER DEALINGS IN THE SOFTWARE.
216fb566b9SBen Skeggs */
226fb566b9SBen Skeggs #define gv100_dmaobj(p) container_of((p), struct gv100_dmaobj, base)
236fb566b9SBen Skeggs #include "user.h"
246fb566b9SBen Skeggs
256fb566b9SBen Skeggs #include <core/client.h>
266fb566b9SBen Skeggs #include <core/gpuobj.h>
276fb566b9SBen Skeggs #include <subdev/fb.h>
286fb566b9SBen Skeggs
296fb566b9SBen Skeggs #include <nvif/cl0002.h>
306fb566b9SBen Skeggs #include <nvif/unpack.h>
316fb566b9SBen Skeggs
326fb566b9SBen Skeggs struct gv100_dmaobj {
336fb566b9SBen Skeggs struct nvkm_dmaobj base;
346fb566b9SBen Skeggs u32 flags0;
356fb566b9SBen Skeggs };
366fb566b9SBen Skeggs
376fb566b9SBen Skeggs static int
gv100_dmaobj_bind(struct nvkm_dmaobj * base,struct nvkm_gpuobj * parent,int align,struct nvkm_gpuobj ** pgpuobj)386fb566b9SBen Skeggs gv100_dmaobj_bind(struct nvkm_dmaobj *base, struct nvkm_gpuobj *parent,
396fb566b9SBen Skeggs int align, struct nvkm_gpuobj **pgpuobj)
406fb566b9SBen Skeggs {
416fb566b9SBen Skeggs struct gv100_dmaobj *dmaobj = gv100_dmaobj(base);
426fb566b9SBen Skeggs struct nvkm_device *device = dmaobj->base.dma->engine.subdev.device;
436fb566b9SBen Skeggs u64 start = dmaobj->base.start >> 8;
446fb566b9SBen Skeggs u64 limit = dmaobj->base.limit >> 8;
456fb566b9SBen Skeggs int ret;
466fb566b9SBen Skeggs
476fb566b9SBen Skeggs ret = nvkm_gpuobj_new(device, 24, align, false, parent, pgpuobj);
486fb566b9SBen Skeggs if (ret == 0) {
496fb566b9SBen Skeggs nvkm_kmap(*pgpuobj);
506fb566b9SBen Skeggs nvkm_wo32(*pgpuobj, 0x00, dmaobj->flags0);
516fb566b9SBen Skeggs nvkm_wo32(*pgpuobj, 0x04, lower_32_bits(start));
526fb566b9SBen Skeggs nvkm_wo32(*pgpuobj, 0x08, upper_32_bits(start));
536fb566b9SBen Skeggs nvkm_wo32(*pgpuobj, 0x0c, lower_32_bits(limit));
546fb566b9SBen Skeggs nvkm_wo32(*pgpuobj, 0x10, upper_32_bits(limit));
556fb566b9SBen Skeggs nvkm_done(*pgpuobj);
566fb566b9SBen Skeggs }
576fb566b9SBen Skeggs
586fb566b9SBen Skeggs return ret;
596fb566b9SBen Skeggs }
606fb566b9SBen Skeggs
616fb566b9SBen Skeggs static const struct nvkm_dmaobj_func
626fb566b9SBen Skeggs gv100_dmaobj_func = {
636fb566b9SBen Skeggs .bind = gv100_dmaobj_bind,
646fb566b9SBen Skeggs };
656fb566b9SBen Skeggs
666fb566b9SBen Skeggs int
gv100_dmaobj_new(struct nvkm_dma * dma,const struct nvkm_oclass * oclass,void * data,u32 size,struct nvkm_dmaobj ** pdmaobj)676fb566b9SBen Skeggs gv100_dmaobj_new(struct nvkm_dma *dma, const struct nvkm_oclass *oclass,
686fb566b9SBen Skeggs void *data, u32 size, struct nvkm_dmaobj **pdmaobj)
696fb566b9SBen Skeggs {
706fb566b9SBen Skeggs union {
716fb566b9SBen Skeggs struct gf119_dma_v0 v0;
726fb566b9SBen Skeggs } *args;
736fb566b9SBen Skeggs struct nvkm_object *parent = oclass->parent;
746fb566b9SBen Skeggs struct gv100_dmaobj *dmaobj;
756fb566b9SBen Skeggs u32 kind, page;
766fb566b9SBen Skeggs int ret;
776fb566b9SBen Skeggs
786fb566b9SBen Skeggs if (!(dmaobj = kzalloc(sizeof(*dmaobj), GFP_KERNEL)))
796fb566b9SBen Skeggs return -ENOMEM;
806fb566b9SBen Skeggs *pdmaobj = &dmaobj->base;
816fb566b9SBen Skeggs
826fb566b9SBen Skeggs ret = nvkm_dmaobj_ctor(&gv100_dmaobj_func, dma, oclass,
836fb566b9SBen Skeggs &data, &size, &dmaobj->base);
846fb566b9SBen Skeggs if (ret)
856fb566b9SBen Skeggs return ret;
866fb566b9SBen Skeggs
876fb566b9SBen Skeggs ret = -ENOSYS;
886fb566b9SBen Skeggs args = data;
896fb566b9SBen Skeggs
906fb566b9SBen Skeggs nvif_ioctl(parent, "create gv100 dma size %d\n", size);
916fb566b9SBen Skeggs if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) {
926fb566b9SBen Skeggs nvif_ioctl(parent,
936fb566b9SBen Skeggs "create gv100 dma vers %d page %d kind %02x\n",
946fb566b9SBen Skeggs args->v0.version, args->v0.page, args->v0.kind);
956fb566b9SBen Skeggs kind = args->v0.kind != 0;
966fb566b9SBen Skeggs page = args->v0.page != 0;
976fb566b9SBen Skeggs } else
986fb566b9SBen Skeggs if (size == 0) {
996fb566b9SBen Skeggs kind = 0;
1006fb566b9SBen Skeggs page = GF119_DMA_V0_PAGE_SP;
1016fb566b9SBen Skeggs } else
1026fb566b9SBen Skeggs return ret;
1036fb566b9SBen Skeggs
1046fb566b9SBen Skeggs if (kind)
1056fb566b9SBen Skeggs dmaobj->flags0 |= 0x00100000;
1066fb566b9SBen Skeggs if (page)
1076fb566b9SBen Skeggs dmaobj->flags0 |= 0x00000040;
1086fb566b9SBen Skeggs dmaobj->flags0 |= 0x00000004; /* rw */
1096fb566b9SBen Skeggs
1106fb566b9SBen Skeggs switch (dmaobj->base.target) {
1116fb566b9SBen Skeggs case NV_MEM_TARGET_VRAM : dmaobj->flags0 |= 0x00000001; break;
1126fb566b9SBen Skeggs case NV_MEM_TARGET_PCI : dmaobj->flags0 |= 0x00000002; break;
1136fb566b9SBen Skeggs case NV_MEM_TARGET_PCI_NOSNOOP: dmaobj->flags0 |= 0x00000003; break;
1146fb566b9SBen Skeggs default:
1156fb566b9SBen Skeggs return -EINVAL;
1166fb566b9SBen Skeggs }
1176fb566b9SBen Skeggs
1186fb566b9SBen Skeggs return 0;
1196fb566b9SBen Skeggs }
120