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 28c39f472eSBen Skeggs /******************************************************************************* 29c39f472eSBen Skeggs * MPEG object classes 30c39f472eSBen Skeggs ******************************************************************************/ 31c39f472eSBen Skeggs 32c39f472eSBen Skeggs static int 33e7c29683SBen Skeggs nv40_mpeg_mthd_dma(struct nvkm_object *object, u32 mthd, void *arg, u32 len) 34c39f472eSBen Skeggs { 35e7c29683SBen Skeggs struct nvkm_instmem *imem = nvkm_instmem(object); 36b19de4f3SBen Skeggs struct nv31_mpeg *mpeg = (void *)object->engine; 37c39f472eSBen Skeggs u32 inst = *(u32 *)arg << 4; 38c39f472eSBen Skeggs u32 dma0 = nv_ro32(imem, inst + 0); 39c39f472eSBen Skeggs u32 dma1 = nv_ro32(imem, inst + 4); 40c39f472eSBen Skeggs u32 dma2 = nv_ro32(imem, inst + 8); 41c39f472eSBen Skeggs u32 base = (dma2 & 0xfffff000) | (dma0 >> 20); 42c39f472eSBen Skeggs u32 size = dma1 + 1; 43c39f472eSBen Skeggs 44c39f472eSBen Skeggs /* only allow linear DMA objects */ 45c39f472eSBen Skeggs if (!(dma0 & 0x00002000)) 46c39f472eSBen Skeggs return -EINVAL; 47c39f472eSBen Skeggs 48c39f472eSBen Skeggs if (mthd == 0x0190) { 49c39f472eSBen Skeggs /* DMA_CMD */ 50b19de4f3SBen Skeggs nv_mask(mpeg, 0x00b300, 0x00030000, (dma0 & 0x00030000)); 51b19de4f3SBen Skeggs nv_wr32(mpeg, 0x00b334, base); 52b19de4f3SBen Skeggs nv_wr32(mpeg, 0x00b324, size); 53c39f472eSBen Skeggs } else 54c39f472eSBen Skeggs if (mthd == 0x01a0) { 55c39f472eSBen Skeggs /* DMA_DATA */ 56b19de4f3SBen Skeggs nv_mask(mpeg, 0x00b300, 0x000c0000, (dma0 & 0x00030000) << 2); 57b19de4f3SBen Skeggs nv_wr32(mpeg, 0x00b360, base); 58b19de4f3SBen Skeggs nv_wr32(mpeg, 0x00b364, size); 59c39f472eSBen Skeggs } else { 60c39f472eSBen Skeggs /* DMA_IMAGE, VRAM only */ 61c39f472eSBen Skeggs if (dma0 & 0x00030000) 62c39f472eSBen Skeggs return -EINVAL; 63c39f472eSBen Skeggs 64b19de4f3SBen Skeggs nv_wr32(mpeg, 0x00b370, base); 65b19de4f3SBen Skeggs nv_wr32(mpeg, 0x00b374, size); 66c39f472eSBen Skeggs } 67c39f472eSBen Skeggs 68c39f472eSBen Skeggs return 0; 69c39f472eSBen Skeggs } 70c39f472eSBen Skeggs 71e7c29683SBen Skeggs static struct nvkm_omthds 72c39f472eSBen Skeggs nv40_mpeg_omthds[] = { 73c39f472eSBen Skeggs { 0x0190, 0x0190, nv40_mpeg_mthd_dma }, 74c39f472eSBen Skeggs { 0x01a0, 0x01a0, nv40_mpeg_mthd_dma }, 75c39f472eSBen Skeggs { 0x01b0, 0x01b0, nv40_mpeg_mthd_dma }, 76c39f472eSBen Skeggs {} 77c39f472eSBen Skeggs }; 78c39f472eSBen Skeggs 79e7c29683SBen Skeggs struct nvkm_oclass 80c39f472eSBen Skeggs nv40_mpeg_sclass[] = { 81c39f472eSBen Skeggs { 0x3174, &nv31_mpeg_ofuncs, nv40_mpeg_omthds }, 82c39f472eSBen Skeggs {} 83c39f472eSBen Skeggs }; 84c39f472eSBen Skeggs 85c39f472eSBen Skeggs /******************************************************************************* 86c39f472eSBen Skeggs * PMPEG engine/subdev functions 87c39f472eSBen Skeggs ******************************************************************************/ 88c39f472eSBen Skeggs 89c39f472eSBen Skeggs static void 90e7c29683SBen Skeggs nv40_mpeg_intr(struct nvkm_subdev *subdev) 91c39f472eSBen Skeggs { 92b19de4f3SBen Skeggs struct nv31_mpeg *mpeg = (void *)subdev; 93c39f472eSBen Skeggs u32 stat; 94c39f472eSBen Skeggs 95b19de4f3SBen Skeggs if ((stat = nv_rd32(mpeg, 0x00b100))) 96c39f472eSBen Skeggs nv31_mpeg_intr(subdev); 97c39f472eSBen Skeggs 98b19de4f3SBen Skeggs if ((stat = nv_rd32(mpeg, 0x00b800))) { 99b19de4f3SBen Skeggs nv_error(mpeg, "PMSRCH 0x%08x\n", stat); 100b19de4f3SBen Skeggs nv_wr32(mpeg, 0x00b800, stat); 101c39f472eSBen Skeggs } 102c39f472eSBen Skeggs } 103c39f472eSBen Skeggs 104c39f472eSBen Skeggs static int 105e7c29683SBen Skeggs nv40_mpeg_ctor(struct nvkm_object *parent, struct nvkm_object *engine, 106e7c29683SBen Skeggs struct nvkm_oclass *oclass, void *data, u32 size, 107e7c29683SBen Skeggs struct nvkm_object **pobject) 108c39f472eSBen Skeggs { 109b19de4f3SBen Skeggs struct nv31_mpeg *mpeg; 110c39f472eSBen Skeggs int ret; 111c39f472eSBen Skeggs 112b19de4f3SBen Skeggs ret = nvkm_mpeg_create(parent, engine, oclass, &mpeg); 113b19de4f3SBen Skeggs *pobject = nv_object(mpeg); 114c39f472eSBen Skeggs if (ret) 115c39f472eSBen Skeggs return ret; 116c39f472eSBen Skeggs 117b19de4f3SBen Skeggs nv_subdev(mpeg)->unit = 0x00000002; 118b19de4f3SBen Skeggs nv_subdev(mpeg)->intr = nv40_mpeg_intr; 119b19de4f3SBen Skeggs nv_engine(mpeg)->cclass = &nv31_mpeg_cclass; 120b19de4f3SBen Skeggs nv_engine(mpeg)->sclass = nv40_mpeg_sclass; 121b19de4f3SBen Skeggs nv_engine(mpeg)->tile_prog = nv31_mpeg_tile_prog; 122c39f472eSBen Skeggs return 0; 123c39f472eSBen Skeggs } 124c39f472eSBen Skeggs 125e7c29683SBen Skeggs struct nvkm_oclass 126c39f472eSBen Skeggs nv40_mpeg_oclass = { 127c39f472eSBen Skeggs .handle = NV_ENGINE(MPEG, 0x40), 128e7c29683SBen Skeggs .ofuncs = &(struct nvkm_ofuncs) { 129c39f472eSBen Skeggs .ctor = nv40_mpeg_ctor, 130e7c29683SBen Skeggs .dtor = _nvkm_mpeg_dtor, 131c39f472eSBen Skeggs .init = nv31_mpeg_init, 132e7c29683SBen Skeggs .fini = _nvkm_mpeg_fini, 133c39f472eSBen Skeggs }, 134c39f472eSBen Skeggs }; 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