| /* |
| * 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 <core/client.h> |
| #include <core/gpuobj.h> |
| #include <subdev/fb.h> |
| #include <subdev/timer.h> |
| #include <engine/fifo.h> |
| |
| #include <nvif/class.h> |
| |
| /******************************************************************************* |
| * MPEG object classes |
| ******************************************************************************/ |
| |
| static int |
| nv31_mpeg_object_bind(struct nvkm_object *object, struct nvkm_gpuobj *parent, |
| int align, struct nvkm_gpuobj **pgpuobj) |
| { |
| int ret = nvkm_gpuobj_new(object->engine->subdev.device, 16, align, |
| false, parent, pgpuobj); |
| if (ret == 0) { |
| nvkm_kmap(*pgpuobj); |
| nvkm_wo32(*pgpuobj, 0x00, object->oclass); |
| nvkm_wo32(*pgpuobj, 0x04, 0x00000000); |
| nvkm_wo32(*pgpuobj, 0x08, 0x00000000); |
| nvkm_wo32(*pgpuobj, 0x0c, 0x00000000); |
| nvkm_done(*pgpuobj); |
| } |
| return ret; |
| } |
| |
| const struct nvkm_object_func |
| nv31_mpeg_object = { |
| .bind = nv31_mpeg_object_bind, |
| }; |
| |
| /******************************************************************************* |
| * PMPEG context |
| ******************************************************************************/ |
| |
| static void * |
| nv31_mpeg_chan_dtor(struct nvkm_object *object) |
| { |
| struct nv31_mpeg_chan *chan = nv31_mpeg_chan(object); |
| struct nv31_mpeg *mpeg = chan->mpeg; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&mpeg->engine.lock, flags); |
| if (mpeg->chan == chan) |
| mpeg->chan = NULL; |
| spin_unlock_irqrestore(&mpeg->engine.lock, flags); |
| return chan; |
| } |
| |
| static const struct nvkm_object_func |
| nv31_mpeg_chan = { |
| .dtor = nv31_mpeg_chan_dtor, |
| }; |
| |
| int |
| nv31_mpeg_chan_new(struct nvkm_fifo_chan *fifoch, |
| const struct nvkm_oclass *oclass, |
| struct nvkm_object **pobject) |
| { |
| struct nv31_mpeg *mpeg = nv31_mpeg(oclass->engine); |
| struct nv31_mpeg_chan *chan; |
| unsigned long flags; |
| int ret = -EBUSY; |
| |
| if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL))) |
| return -ENOMEM; |
| nvkm_object_ctor(&nv31_mpeg_chan, oclass, &chan->object); |
| chan->mpeg = mpeg; |
| chan->fifo = fifoch; |
| *pobject = &chan->object; |
| |
| spin_lock_irqsave(&mpeg->engine.lock, flags); |
| if (!mpeg->chan) { |
| mpeg->chan = chan; |
| ret = 0; |
| } |
| spin_unlock_irqrestore(&mpeg->engine.lock, flags); |
| return ret; |
| } |
| |
| /******************************************************************************* |
| * PMPEG engine/subdev functions |
| ******************************************************************************/ |
| |
| void |
| nv31_mpeg_tile(struct nvkm_engine *engine, int i, struct nvkm_fb_tile *tile) |
| { |
| struct nv31_mpeg *mpeg = nv31_mpeg(engine); |
| struct nvkm_device *device = mpeg->engine.subdev.device; |
| |
| nvkm_wr32(device, 0x00b008 + (i * 0x10), tile->pitch); |
| nvkm_wr32(device, 0x00b004 + (i * 0x10), tile->limit); |
| nvkm_wr32(device, 0x00b000 + (i * 0x10), tile->addr); |
| } |
| |
| static bool |
| nv31_mpeg_mthd_dma(struct nvkm_device *device, u32 mthd, u32 data) |
| { |
| struct nv31_mpeg *mpeg = nv31_mpeg(device->mpeg); |
| struct nvkm_subdev *subdev = &mpeg->engine.subdev; |
| u32 inst = data << 4; |
| u32 dma0 = nvkm_rd32(device, 0x700000 + inst); |
| u32 dma1 = nvkm_rd32(device, 0x700004 + inst); |
| u32 dma2 = nvkm_rd32(device, 0x700008 + inst); |
| u32 base = (dma2 & 0xfffff000) | (dma0 >> 20); |
| u32 size = dma1 + 1; |
| |
| /* only allow linear DMA objects */ |
| if (!(dma0 & 0x00002000)) { |
| nvkm_error(subdev, "inst %08x dma0 %08x dma1 %08x dma2 %08x\n", |
| inst, dma0, dma1, dma2); |
| return false; |
| } |
| |
| if (mthd == 0x0190) { |
| /* DMA_CMD */ |
| nvkm_mask(device, 0x00b300, 0x00010000, |
| (dma0 & 0x00030000) ? 0x00010000 : 0); |
| nvkm_wr32(device, 0x00b334, base); |
| nvkm_wr32(device, 0x00b324, size); |
| } else |
| if (mthd == 0x01a0) { |
| /* DMA_DATA */ |
| nvkm_mask(device, 0x00b300, 0x00020000, |
| (dma0 & 0x00030000) ? 0x00020000 : 0); |
| 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; |
| } |
| |
| static bool |
| nv31_mpeg_mthd(struct nv31_mpeg *mpeg, u32 mthd, u32 data) |
| { |
| struct nvkm_device *device = mpeg->engine.subdev.device; |
| switch (mthd) { |
| case 0x190: |
| case 0x1a0: |
| case 0x1b0: |
| return mpeg->func->mthd_dma(device, mthd, data); |
| default: |
| break; |
| } |
| return false; |
| } |
| |
| static void |
| nv31_mpeg_intr(struct nvkm_engine *engine) |
| { |
| struct nv31_mpeg *mpeg = nv31_mpeg(engine); |
| struct nvkm_subdev *subdev = &mpeg->engine.subdev; |
| struct nvkm_device *device = subdev->device; |
| u32 stat = nvkm_rd32(device, 0x00b100); |
| u32 type = nvkm_rd32(device, 0x00b230); |
| u32 mthd = nvkm_rd32(device, 0x00b234); |
| u32 data = nvkm_rd32(device, 0x00b238); |
| u32 show = stat; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&mpeg->engine.lock, flags); |
| |
| if (stat & 0x01000000) { |
| /* happens on initial binding of the object */ |
| if (type == 0x00000020 && mthd == 0x0000) { |
| nvkm_mask(device, 0x00b308, 0x00000000, 0x00000000); |
| show &= ~0x01000000; |
| } |
| |
| if (type == 0x00000010) { |
| if (nv31_mpeg_mthd(mpeg, mthd, data)) |
| show &= ~0x01000000; |
| } |
| } |
| |
| nvkm_wr32(device, 0x00b100, stat); |
| nvkm_wr32(device, 0x00b230, 0x00000001); |
| |
| if (show) { |
| nvkm_error(subdev, "ch %d [%s] %08x %08x %08x %08x\n", |
| mpeg->chan ? mpeg->chan->fifo->chid : -1, |
| mpeg->chan ? mpeg->chan->object.client->name : |
| "unknown", stat, type, mthd, data); |
| } |
| |
| spin_unlock_irqrestore(&mpeg->engine.lock, flags); |
| } |
| |
| int |
| nv31_mpeg_init(struct nvkm_engine *mpeg) |
| { |
| struct nvkm_subdev *subdev = &mpeg->subdev; |
| struct nvkm_device *device = subdev->device; |
| |
| /* VPE init */ |
| nvkm_wr32(device, 0x00b0e0, 0x00000020); /* nvidia: rd 0x01, wr 0x20 */ |
| nvkm_wr32(device, 0x00b0e8, 0x00000020); /* nvidia: rd 0x01, wr 0x20 */ |
| |
| /* PMPEG init */ |
| nvkm_wr32(device, 0x00b32c, 0x00000000); |
| nvkm_wr32(device, 0x00b314, 0x00000100); |
| nvkm_wr32(device, 0x00b220, 0x00000031); |
| nvkm_wr32(device, 0x00b300, 0x02001ec1); |
| nvkm_mask(device, 0x00b32c, 0x00000001, 0x00000001); |
| |
| nvkm_wr32(device, 0x00b100, 0xffffffff); |
| nvkm_wr32(device, 0x00b140, 0xffffffff); |
| |
| if (nvkm_msec(device, 2000, |
| if (!(nvkm_rd32(device, 0x00b200) & 0x00000001)) |
| break; |
| ) < 0) { |
| nvkm_error(subdev, "timeout %08x\n", |
| nvkm_rd32(device, 0x00b200)); |
| return -EBUSY; |
| } |
| |
| return 0; |
| } |
| |
| static void * |
| nv31_mpeg_dtor(struct nvkm_engine *engine) |
| { |
| return nv31_mpeg(engine); |
| } |
| |
| static const struct nvkm_engine_func |
| nv31_mpeg_ = { |
| .dtor = nv31_mpeg_dtor, |
| .init = nv31_mpeg_init, |
| .intr = nv31_mpeg_intr, |
| .tile = nv31_mpeg_tile, |
| .fifo.cclass = nv31_mpeg_chan_new, |
| .sclass = { |
| { -1, -1, NV31_MPEG, &nv31_mpeg_object }, |
| {} |
| } |
| }; |
| |
| int |
| nv31_mpeg_new_(const struct nv31_mpeg_func *func, struct nvkm_device *device, |
| enum nvkm_subdev_type type, int inst, struct nvkm_engine **pmpeg) |
| { |
| struct nv31_mpeg *mpeg; |
| |
| if (!(mpeg = kzalloc(sizeof(*mpeg), GFP_KERNEL))) |
| return -ENOMEM; |
| mpeg->func = func; |
| *pmpeg = &mpeg->engine; |
| |
| return nvkm_engine_ctor(&nv31_mpeg_, device, type, inst, true, &mpeg->engine); |
| } |
| |
| static const struct nv31_mpeg_func |
| nv31_mpeg = { |
| .mthd_dma = nv31_mpeg_mthd_dma, |
| }; |
| |
| int |
| nv31_mpeg_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, |
| struct nvkm_engine **pmpeg) |
| { |
| return nv31_mpeg_new_(&nv31_mpeg, device, type, inst, pmpeg); |
| } |