1c39f472eSBen Skeggs /* 2c39f472eSBen Skeggs * Copyright 2012 Red Hat Inc. 3c39f472eSBen Skeggs * 4c39f472eSBen Skeggs * Permission is hereby granted, free of charge, to any person obtaining a 5c39f472eSBen Skeggs * copy of this software and associated documentation files (the "Software"), 6c39f472eSBen Skeggs * to deal in the Software without restriction, including without limitation 7c39f472eSBen Skeggs * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8c39f472eSBen Skeggs * and/or sell copies of the Software, and to permit persons to whom the 9c39f472eSBen Skeggs * Software is furnished to do so, subject to the following conditions: 10c39f472eSBen Skeggs * 11c39f472eSBen Skeggs * The above copyright notice and this permission notice shall be included in 12c39f472eSBen Skeggs * all copies or substantial portions of the Software. 13c39f472eSBen Skeggs * 14c39f472eSBen Skeggs * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15c39f472eSBen Skeggs * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16c39f472eSBen Skeggs * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17c39f472eSBen Skeggs * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18c39f472eSBen Skeggs * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19c39f472eSBen Skeggs * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20c39f472eSBen Skeggs * OTHER DEALINGS IN THE SOFTWARE. 21c39f472eSBen Skeggs * 22c39f472eSBen Skeggs * Authors: Ben Skeggs 23c39f472eSBen Skeggs */ 24e7c29683SBen Skeggs #include "nv31.h" 25c39f472eSBen Skeggs 26c39f472eSBen Skeggs #include <subdev/instmem.h> 27c39f472eSBen Skeggs 28218f978dSBen Skeggs #include <nvif/class.h> 29c39f472eSBen Skeggs 30590801c1SBen Skeggs bool 31590801c1SBen Skeggs nv40_mpeg_mthd_dma(struct nvkm_device *device, u32 mthd, u32 data) 32c39f472eSBen Skeggs { 33636e37aaSBen Skeggs struct nvkm_instmem *imem = device->imem; 34590801c1SBen Skeggs u32 inst = data << 4; 35a4747426SBen Skeggs u32 dma0 = imem->func->rd32(imem, inst + 0); 36a4747426SBen Skeggs u32 dma1 = imem->func->rd32(imem, inst + 4); 37a4747426SBen Skeggs u32 dma2 = imem->func->rd32(imem, inst + 8); 38c39f472eSBen Skeggs u32 base = (dma2 & 0xfffff000) | (dma0 >> 20); 39c39f472eSBen Skeggs u32 size = dma1 + 1; 40c39f472eSBen Skeggs 41c39f472eSBen Skeggs /* only allow linear DMA objects */ 42c39f472eSBen Skeggs if (!(dma0 & 0x00002000)) 43590801c1SBen Skeggs return false; 44c39f472eSBen Skeggs 45c39f472eSBen Skeggs if (mthd == 0x0190) { 46c39f472eSBen Skeggs /* DMA_CMD */ 47636e37aaSBen Skeggs nvkm_mask(device, 0x00b300, 0x00030000, (dma0 & 0x00030000)); 48636e37aaSBen Skeggs nvkm_wr32(device, 0x00b334, base); 49636e37aaSBen Skeggs nvkm_wr32(device, 0x00b324, size); 50c39f472eSBen Skeggs } else 51c39f472eSBen Skeggs if (mthd == 0x01a0) { 52c39f472eSBen Skeggs /* DMA_DATA */ 53636e37aaSBen Skeggs nvkm_mask(device, 0x00b300, 0x000c0000, (dma0 & 0x00030000) << 2); 54636e37aaSBen Skeggs nvkm_wr32(device, 0x00b360, base); 55636e37aaSBen Skeggs nvkm_wr32(device, 0x00b364, size); 56c39f472eSBen Skeggs } else { 57c39f472eSBen Skeggs /* DMA_IMAGE, VRAM only */ 58c39f472eSBen Skeggs if (dma0 & 0x00030000) 59590801c1SBen Skeggs return false; 60c39f472eSBen Skeggs 61636e37aaSBen Skeggs nvkm_wr32(device, 0x00b370, base); 62636e37aaSBen Skeggs nvkm_wr32(device, 0x00b374, size); 63c39f472eSBen Skeggs } 64c39f472eSBen Skeggs 65590801c1SBen Skeggs return true; 66c39f472eSBen Skeggs } 67c39f472eSBen Skeggs 68c39f472eSBen Skeggs static void 69e7c29683SBen Skeggs nv40_mpeg_intr(struct nvkm_subdev *subdev) 70c39f472eSBen Skeggs { 71b19de4f3SBen Skeggs struct nv31_mpeg *mpeg = (void *)subdev; 72636e37aaSBen Skeggs struct nvkm_device *device = mpeg->base.engine.subdev.device; 73c39f472eSBen Skeggs u32 stat; 74c39f472eSBen Skeggs 75636e37aaSBen Skeggs if ((stat = nvkm_rd32(device, 0x00b100))) 76c39f472eSBen Skeggs nv31_mpeg_intr(subdev); 77c39f472eSBen Skeggs 78636e37aaSBen Skeggs if ((stat = nvkm_rd32(device, 0x00b800))) { 79b835c09bSBen Skeggs nvkm_error(subdev, "PMSRCH %08x\n", stat); 80636e37aaSBen Skeggs nvkm_wr32(device, 0x00b800, stat); 81c39f472eSBen Skeggs } 82c39f472eSBen Skeggs } 83c39f472eSBen Skeggs 84218f978dSBen Skeggs static const struct nvkm_engine_func 85218f978dSBen Skeggs nv40_mpeg = { 86218f978dSBen Skeggs .fifo.cclass = nv31_mpeg_chan_new, 87218f978dSBen Skeggs .sclass = { 88218f978dSBen Skeggs { -1, -1, NV31_MPEG, &nv31_mpeg_object }, 89218f978dSBen Skeggs {} 90218f978dSBen Skeggs } 91218f978dSBen Skeggs }; 92218f978dSBen Skeggs 93c39f472eSBen Skeggs static int 94e7c29683SBen Skeggs nv40_mpeg_ctor(struct nvkm_object *parent, struct nvkm_object *engine, 95e7c29683SBen Skeggs struct nvkm_oclass *oclass, void *data, u32 size, 96e7c29683SBen Skeggs struct nvkm_object **pobject) 97c39f472eSBen Skeggs { 98b19de4f3SBen Skeggs struct nv31_mpeg *mpeg; 99c39f472eSBen Skeggs int ret; 100c39f472eSBen Skeggs 101b19de4f3SBen Skeggs ret = nvkm_mpeg_create(parent, engine, oclass, &mpeg); 102b19de4f3SBen Skeggs *pobject = nv_object(mpeg); 103c39f472eSBen Skeggs if (ret) 104c39f472eSBen Skeggs return ret; 105c39f472eSBen Skeggs 106218f978dSBen Skeggs mpeg->base.engine.func = &nv40_mpeg; 107218f978dSBen Skeggs 108590801c1SBen Skeggs mpeg->mthd_dma = nv40_mpeg_mthd_dma; 109b19de4f3SBen Skeggs nv_subdev(mpeg)->unit = 0x00000002; 110b19de4f3SBen Skeggs nv_subdev(mpeg)->intr = nv40_mpeg_intr; 111b19de4f3SBen Skeggs nv_engine(mpeg)->tile_prog = nv31_mpeg_tile_prog; 112c39f472eSBen Skeggs return 0; 113c39f472eSBen Skeggs } 114c39f472eSBen Skeggs 115e7c29683SBen Skeggs struct nvkm_oclass 116c39f472eSBen Skeggs nv40_mpeg_oclass = { 117c39f472eSBen Skeggs .handle = NV_ENGINE(MPEG, 0x40), 118e7c29683SBen Skeggs .ofuncs = &(struct nvkm_ofuncs) { 119c39f472eSBen Skeggs .ctor = nv40_mpeg_ctor, 120e7c29683SBen Skeggs .dtor = _nvkm_mpeg_dtor, 121c39f472eSBen Skeggs .init = nv31_mpeg_init, 122e7c29683SBen Skeggs .fini = _nvkm_mpeg_fini, 123c39f472eSBen Skeggs }, 124c39f472eSBen Skeggs }; 125