/* * 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 <core/os.h> #include <core/class.h> #include <core/engctx.h> #include <subdev/fb.h> #include <subdev/timer.h> #include <subdev/instmem.h> #include <engine/mpeg.h> #include <engine/mpeg/nv31.h> /******************************************************************************* * MPEG object classes ******************************************************************************/ static int nv40_mpeg_mthd_dma(struct nouveau_object *object, u32 mthd, void *arg, u32 len) { struct nouveau_instmem *imem = nouveau_instmem(object); struct nv31_mpeg_priv *priv = (void *)object->engine; u32 inst = *(u32 *)arg << 4; u32 dma0 = nv_ro32(imem, inst + 0); u32 dma1 = nv_ro32(imem, inst + 4); u32 dma2 = nv_ro32(imem, inst + 8); u32 base = (dma2 & 0xfffff000) | (dma0 >> 20); u32 size = dma1 + 1; /* only allow linear DMA objects */ if (!(dma0 & 0x00002000)) return -EINVAL; if (mthd == 0x0190) { /* DMA_CMD */ nv_mask(priv, 0x00b300, 0x00030000, (dma0 & 0x00030000)); nv_wr32(priv, 0x00b334, base); nv_wr32(priv, 0x00b324, size); } else if (mthd == 0x01a0) { /* DMA_DATA */ nv_mask(priv, 0x00b300, 0x000c0000, (dma0 & 0x00030000) << 2); nv_wr32(priv, 0x00b360, base); nv_wr32(priv, 0x00b364, size); } else { /* DMA_IMAGE, VRAM only */ if (dma0 & 0x00030000) return -EINVAL; nv_wr32(priv, 0x00b370, base); nv_wr32(priv, 0x00b374, size); } return 0; } static struct nouveau_omthds nv40_mpeg_omthds[] = { { 0x0190, 0x0190, nv40_mpeg_mthd_dma }, { 0x01a0, 0x01a0, nv40_mpeg_mthd_dma }, { 0x01b0, 0x01b0, nv40_mpeg_mthd_dma }, {} }; struct nouveau_oclass nv40_mpeg_sclass[] = { { 0x3174, &nv31_mpeg_ofuncs, nv40_mpeg_omthds }, {} }; /******************************************************************************* * PMPEG engine/subdev functions ******************************************************************************/ static void nv40_mpeg_intr(struct nouveau_subdev *subdev) { struct nv31_mpeg_priv *priv = (void *)subdev; u32 stat; if ((stat = nv_rd32(priv, 0x00b100))) nv31_mpeg_intr(subdev); if ((stat = nv_rd32(priv, 0x00b800))) { nv_error(priv, "PMSRCH 0x%08x\n", stat); nv_wr32(priv, 0x00b800, stat); } } static int nv40_mpeg_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nouveau_oclass *oclass, void *data, u32 size, struct nouveau_object **pobject) { struct nv31_mpeg_priv *priv; int ret; ret = nouveau_mpeg_create(parent, engine, oclass, &priv); *pobject = nv_object(priv); if (ret) return ret; nv_subdev(priv)->unit = 0x00000002; nv_subdev(priv)->intr = nv40_mpeg_intr; nv_engine(priv)->cclass = &nv31_mpeg_cclass; nv_engine(priv)->sclass = nv40_mpeg_sclass; nv_engine(priv)->tile_prog = nv31_mpeg_tile_prog; return 0; } struct nouveau_oclass nv40_mpeg_oclass = { .handle = NV_ENGINE(MPEG, 0x40), .ofuncs = &(struct nouveau_ofuncs) { .ctor = nv40_mpeg_ctor, .dtor = _nouveau_mpeg_dtor, .init = nv31_mpeg_init, .fini = _nouveau_mpeg_fini, }, };