brintos

brintos / linux-shallow public Read only

0
0
Text · 8.1 KiB · db9fc1e Raw
299 lines · c
1/*2 * Copyright 2012 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: Ben Skeggs23 */24#include "nv31.h"25 26#include <core/client.h>27#include <core/gpuobj.h>28#include <subdev/fb.h>29#include <subdev/timer.h>30#include <engine/fifo.h>31 32#include <nvif/class.h>33 34/*******************************************************************************35 * MPEG object classes36 ******************************************************************************/37 38static int39nv31_mpeg_object_bind(struct nvkm_object *object, struct nvkm_gpuobj *parent,40		      int align, struct nvkm_gpuobj **pgpuobj)41{42	int ret = nvkm_gpuobj_new(object->engine->subdev.device, 16, align,43				  false, parent, pgpuobj);44	if (ret == 0) {45		nvkm_kmap(*pgpuobj);46		nvkm_wo32(*pgpuobj, 0x00, object->oclass);47		nvkm_wo32(*pgpuobj, 0x04, 0x00000000);48		nvkm_wo32(*pgpuobj, 0x08, 0x00000000);49		nvkm_wo32(*pgpuobj, 0x0c, 0x00000000);50		nvkm_done(*pgpuobj);51	}52	return ret;53}54 55const struct nvkm_object_func56nv31_mpeg_object = {57	.bind = nv31_mpeg_object_bind,58};59 60/*******************************************************************************61 * PMPEG context62 ******************************************************************************/63 64static void *65nv31_mpeg_chan_dtor(struct nvkm_object *object)66{67	struct nv31_mpeg_chan *chan = nv31_mpeg_chan(object);68	struct nv31_mpeg *mpeg = chan->mpeg;69	unsigned long flags;70 71	spin_lock_irqsave(&mpeg->engine.lock, flags);72	if (mpeg->chan == chan)73		mpeg->chan = NULL;74	spin_unlock_irqrestore(&mpeg->engine.lock, flags);75	return chan;76}77 78static const struct nvkm_object_func79nv31_mpeg_chan = {80	.dtor = nv31_mpeg_chan_dtor,81};82 83int84nv31_mpeg_chan_new(struct nvkm_chan *fifoch, const struct nvkm_oclass *oclass,85		   struct nvkm_object **pobject)86{87	struct nv31_mpeg *mpeg = nv31_mpeg(oclass->engine);88	struct nv31_mpeg_chan *chan;89	unsigned long flags;90	int ret = -EBUSY;91 92	if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))93		return -ENOMEM;94	nvkm_object_ctor(&nv31_mpeg_chan, oclass, &chan->object);95	chan->mpeg = mpeg;96	chan->fifo = fifoch;97	*pobject = &chan->object;98 99	spin_lock_irqsave(&mpeg->engine.lock, flags);100	if (!mpeg->chan) {101		mpeg->chan = chan;102		ret = 0;103	}104	spin_unlock_irqrestore(&mpeg->engine.lock, flags);105	return ret;106}107 108/*******************************************************************************109 * PMPEG engine/subdev functions110 ******************************************************************************/111 112void113nv31_mpeg_tile(struct nvkm_engine *engine, int i, struct nvkm_fb_tile *tile)114{115	struct nv31_mpeg *mpeg = nv31_mpeg(engine);116	struct nvkm_device *device = mpeg->engine.subdev.device;117 118	nvkm_wr32(device, 0x00b008 + (i * 0x10), tile->pitch);119	nvkm_wr32(device, 0x00b004 + (i * 0x10), tile->limit);120	nvkm_wr32(device, 0x00b000 + (i * 0x10), tile->addr);121}122 123static bool124nv31_mpeg_mthd_dma(struct nvkm_device *device, u32 mthd, u32 data)125{126	struct nv31_mpeg *mpeg = nv31_mpeg(device->mpeg);127	struct nvkm_subdev *subdev = &mpeg->engine.subdev;128	u32 inst = data << 4;129	u32 dma0 = nvkm_rd32(device, 0x700000 + inst);130	u32 dma1 = nvkm_rd32(device, 0x700004 + inst);131	u32 dma2 = nvkm_rd32(device, 0x700008 + inst);132	u32 base = (dma2 & 0xfffff000) | (dma0 >> 20);133	u32 size = dma1 + 1;134 135	/* only allow linear DMA objects */136	if (!(dma0 & 0x00002000)) {137		nvkm_error(subdev, "inst %08x dma0 %08x dma1 %08x dma2 %08x\n",138			   inst, dma0, dma1, dma2);139		return false;140	}141 142	if (mthd == 0x0190) {143		/* DMA_CMD */144		nvkm_mask(device, 0x00b300, 0x00010000,145				  (dma0 & 0x00030000) ? 0x00010000 : 0);146		nvkm_wr32(device, 0x00b334, base);147		nvkm_wr32(device, 0x00b324, size);148	} else149	if (mthd == 0x01a0) {150		/* DMA_DATA */151		nvkm_mask(device, 0x00b300, 0x00020000,152				  (dma0 & 0x00030000) ? 0x00020000 : 0);153		nvkm_wr32(device, 0x00b360, base);154		nvkm_wr32(device, 0x00b364, size);155	} else {156		/* DMA_IMAGE, VRAM only */157		if (dma0 & 0x00030000)158			return false;159 160		nvkm_wr32(device, 0x00b370, base);161		nvkm_wr32(device, 0x00b374, size);162	}163 164	return true;165}166 167static bool168nv31_mpeg_mthd(struct nv31_mpeg *mpeg, u32 mthd, u32 data)169{170	struct nvkm_device *device = mpeg->engine.subdev.device;171	switch (mthd) {172	case 0x190:173	case 0x1a0:174	case 0x1b0:175		return mpeg->func->mthd_dma(device, mthd, data);176	default:177		break;178	}179	return false;180}181 182static void183nv31_mpeg_intr(struct nvkm_engine *engine)184{185	struct nv31_mpeg *mpeg = nv31_mpeg(engine);186	struct nvkm_subdev *subdev = &mpeg->engine.subdev;187	struct nvkm_device *device = subdev->device;188	u32 stat = nvkm_rd32(device, 0x00b100);189	u32 type = nvkm_rd32(device, 0x00b230);190	u32 mthd = nvkm_rd32(device, 0x00b234);191	u32 data = nvkm_rd32(device, 0x00b238);192	u32 show = stat;193	unsigned long flags;194 195	spin_lock_irqsave(&mpeg->engine.lock, flags);196 197	if (stat & 0x01000000) {198		/* happens on initial binding of the object */199		if (type == 0x00000020 && mthd == 0x0000) {200			nvkm_mask(device, 0x00b308, 0x00000000, 0x00000000);201			show &= ~0x01000000;202		}203 204		if (type == 0x00000010) {205			if (nv31_mpeg_mthd(mpeg, mthd, data))206				show &= ~0x01000000;207		}208	}209 210	nvkm_wr32(device, 0x00b100, stat);211	nvkm_wr32(device, 0x00b230, 0x00000001);212 213	if (show) {214		nvkm_error(subdev, "ch %d [%s] %08x %08x %08x %08x\n",215			   mpeg->chan ? mpeg->chan->fifo->id : -1,216			   mpeg->chan ? mpeg->chan->fifo->name :217			   "unknown", stat, type, mthd, data);218	}219 220	spin_unlock_irqrestore(&mpeg->engine.lock, flags);221}222 223int224nv31_mpeg_init(struct nvkm_engine *mpeg)225{226	struct nvkm_subdev *subdev = &mpeg->subdev;227	struct nvkm_device *device = subdev->device;228 229	/* VPE init */230	nvkm_wr32(device, 0x00b0e0, 0x00000020); /* nvidia: rd 0x01, wr 0x20 */231	nvkm_wr32(device, 0x00b0e8, 0x00000020); /* nvidia: rd 0x01, wr 0x20 */232 233	/* PMPEG init */234	nvkm_wr32(device, 0x00b32c, 0x00000000);235	nvkm_wr32(device, 0x00b314, 0x00000100);236	nvkm_wr32(device, 0x00b220, 0x00000031);237	nvkm_wr32(device, 0x00b300, 0x02001ec1);238	nvkm_mask(device, 0x00b32c, 0x00000001, 0x00000001);239 240	nvkm_wr32(device, 0x00b100, 0xffffffff);241	nvkm_wr32(device, 0x00b140, 0xffffffff);242 243	if (nvkm_msec(device, 2000,244		if (!(nvkm_rd32(device, 0x00b200) & 0x00000001))245			break;246	) < 0) {247		nvkm_error(subdev, "timeout %08x\n",248			   nvkm_rd32(device, 0x00b200));249		return -EBUSY;250	}251 252	return 0;253}254 255static void *256nv31_mpeg_dtor(struct nvkm_engine *engine)257{258	return nv31_mpeg(engine);259}260 261static const struct nvkm_engine_func262nv31_mpeg_ = {263	.dtor = nv31_mpeg_dtor,264	.init = nv31_mpeg_init,265	.intr = nv31_mpeg_intr,266	.tile = nv31_mpeg_tile,267	.fifo.cclass = nv31_mpeg_chan_new,268	.sclass = {269		{ -1, -1, NV31_MPEG, &nv31_mpeg_object },270		{}271	}272};273 274int275nv31_mpeg_new_(const struct nv31_mpeg_func *func, struct nvkm_device *device,276	       enum nvkm_subdev_type type, int inst, struct nvkm_engine **pmpeg)277{278	struct nv31_mpeg *mpeg;279 280	if (!(mpeg = kzalloc(sizeof(*mpeg), GFP_KERNEL)))281		return -ENOMEM;282	mpeg->func = func;283	*pmpeg = &mpeg->engine;284 285	return nvkm_engine_ctor(&nv31_mpeg_, device, type, inst, true, &mpeg->engine);286}287 288static const struct nv31_mpeg_func289nv31_mpeg = {290	.mthd_dma = nv31_mpeg_mthd_dma,291};292 293int294nv31_mpeg_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,295	      struct nvkm_engine **pmpeg)296{297	return nv31_mpeg_new_(&nv31_mpeg, device, type, inst, pmpeg);298}299