| /* |
| * 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 "nv31.h" |
| |
| #include <subdev/instmem.h> |
| |
| /******************************************************************************* |
| * MPEG object classes |
| ******************************************************************************/ |
| |
| bool |
| nv40_mpeg_mthd_dma(struct nvkm_device *device, u32 mthd, u32 data) |
| { |
| struct nvkm_instmem *imem = device->imem; |
| u32 inst = data << 4; |
| u32 dma0 = imem->func->rd32(imem, inst + 0); |
| u32 dma1 = imem->func->rd32(imem, inst + 4); |
| u32 dma2 = imem->func->rd32(imem, inst + 8); |
| u32 base = (dma2 & 0xfffff000) | (dma0 >> 20); |
| u32 size = dma1 + 1; |
| |
| /* only allow linear DMA objects */ |
| if (!(dma0 & 0x00002000)) |
| return false; |
| |
| if (mthd == 0x0190) { |
| /* DMA_CMD */ |
| nvkm_mask(device, 0x00b300, 0x00030000, (dma0 & 0x00030000)); |
| nvkm_wr32(device, 0x00b334, base); |
| nvkm_wr32(device, 0x00b324, size); |
| } else |
| if (mthd == 0x01a0) { |
| /* DMA_DATA */ |
| nvkm_mask(device, 0x00b300, 0x000c0000, (dma0 & 0x00030000) << 2); |
| nvkm_wr32(device, 0x00b360, base); |
| nvkm_wr32(device, 0x00b364, size); |
| } else { |
| /* DMA_IMAGE, VRAM only */ |
| if (dma0 & 0x00030000) |
| return false; |
| |
| nvkm_wr32(device, 0x00b370, base); |
| nvkm_wr32(device, 0x00b374, size); |
| } |
| |
| return true; |
| } |
| |
| struct nvkm_oclass |
| nv40_mpeg_sclass[] = { |
| { 0x3174, &nv31_mpeg_ofuncs }, |
| {} |
| }; |
| |
| /******************************************************************************* |
| * PMPEG engine/subdev functions |
| ******************************************************************************/ |
| |
| static void |
| nv40_mpeg_intr(struct nvkm_subdev *subdev) |
| { |
| struct nv31_mpeg *mpeg = (void *)subdev; |
| struct nvkm_device *device = mpeg->base.engine.subdev.device; |
| u32 stat; |
| |
| if ((stat = nvkm_rd32(device, 0x00b100))) |
| nv31_mpeg_intr(subdev); |
| |
| if ((stat = nvkm_rd32(device, 0x00b800))) { |
| nvkm_error(subdev, "PMSRCH %08x\n", stat); |
| nvkm_wr32(device, 0x00b800, stat); |
| } |
| } |
| |
| static int |
| nv40_mpeg_ctor(struct nvkm_object *parent, struct nvkm_object *engine, |
| struct nvkm_oclass *oclass, void *data, u32 size, |
| struct nvkm_object **pobject) |
| { |
| struct nv31_mpeg *mpeg; |
| int ret; |
| |
| ret = nvkm_mpeg_create(parent, engine, oclass, &mpeg); |
| *pobject = nv_object(mpeg); |
| if (ret) |
| return ret; |
| |
| mpeg->mthd_dma = nv40_mpeg_mthd_dma; |
| nv_subdev(mpeg)->unit = 0x00000002; |
| nv_subdev(mpeg)->intr = nv40_mpeg_intr; |
| nv_engine(mpeg)->cclass = &nv31_mpeg_cclass; |
| nv_engine(mpeg)->sclass = nv40_mpeg_sclass; |
| nv_engine(mpeg)->tile_prog = nv31_mpeg_tile_prog; |
| return 0; |
| } |
| |
| struct nvkm_oclass |
| nv40_mpeg_oclass = { |
| .handle = NV_ENGINE(MPEG, 0x40), |
| .ofuncs = &(struct nvkm_ofuncs) { |
| .ctor = nv40_mpeg_ctor, |
| .dtor = _nvkm_mpeg_dtor, |
| .init = nv31_mpeg_init, |
| .fini = _nvkm_mpeg_fini, |
| }, |
| }; |