nv50.c

  1/*
  2 * Copyright 2012 Red Hat Inc.
  3 *
  4 * Permission is hereby granted, free of charge, to any person obtaining a
  5 * copy of this software and associated documentation files (the "Software"),
  6 * to deal in the Software without restriction, including without limitation
  7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  8 * and/or sell copies of the Software, and to permit persons to whom the
  9 * Software is furnished to do so, subject to the following conditions:
 10 *
 11 * The above copyright notice and this permission notice shall be included in
 12 * all copies or substantial portions of the Software.
 13 *
 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 18 * 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 OR
 20 * OTHER DEALINGS IN THE SOFTWARE.
 21 *
 22 * Authors: Ben Skeggs
 23 */
 24#include "priv.h"
 25
 26#include <core/gpuobj.h>
 27#include <core/object.h>
 28#include <subdev/timer.h>
 29
 30#include <nvif/class.h>
 31
 32/*******************************************************************************
 33 * PMPEG context
 34 ******************************************************************************/
 35
 36static int
 37nv50_mpeg_cclass_bind(struct nvkm_object *object, struct nvkm_gpuobj *parent,
 38		      int align, struct nvkm_gpuobj **pgpuobj)
 39{
 40	int ret = nvkm_gpuobj_new(object->engine->subdev.device, 128 * 4,
 41				  align, true, parent, pgpuobj);
 42	if (ret == 0) {
 43		nvkm_kmap(*pgpuobj);
 44		nvkm_wo32(*pgpuobj, 0x70, 0x00801ec1);
 45		nvkm_wo32(*pgpuobj, 0x7c, 0x0000037c);
 46		nvkm_done(*pgpuobj);
 47	}
 48	return ret;
 49}
 50
 51const struct nvkm_object_func
 52nv50_mpeg_cclass = {
 53	.bind = nv50_mpeg_cclass_bind,
 54};
 55
 56/*******************************************************************************
 57 * PMPEG engine/subdev functions
 58 ******************************************************************************/
 59
 60void
 61nv50_mpeg_intr(struct nvkm_engine *mpeg)
 62{
 63	struct nvkm_subdev *subdev = &mpeg->subdev;
 64	struct nvkm_device *device = subdev->device;
 65	u32 stat = nvkm_rd32(device, 0x00b100);
 66	u32 type = nvkm_rd32(device, 0x00b230);
 67	u32 mthd = nvkm_rd32(device, 0x00b234);
 68	u32 data = nvkm_rd32(device, 0x00b238);
 69	u32 show = stat;
 70
 71	if (stat & 0x01000000) {
 72		/* happens on initial binding of the object */
 73		if (type == 0x00000020 && mthd == 0x0000) {
 74			nvkm_wr32(device, 0x00b308, 0x00000100);
 75			show &= ~0x01000000;
 76		}
 77	}
 78
 79	if (show) {
 80		nvkm_info(subdev, "%08x %08x %08x %08x\n",
 81			  stat, type, mthd, data);
 82	}
 83
 84	nvkm_wr32(device, 0x00b100, stat);
 85	nvkm_wr32(device, 0x00b230, 0x00000001);
 86}
 87
 88int
 89nv50_mpeg_init(struct nvkm_engine *mpeg)
 90{
 91	struct nvkm_subdev *subdev = &mpeg->subdev;
 92	struct nvkm_device *device = subdev->device;
 93
 94	nvkm_wr32(device, 0x00b32c, 0x00000000);
 95	nvkm_wr32(device, 0x00b314, 0x00000100);
 96	nvkm_wr32(device, 0x00b0e0, 0x0000001a);
 97
 98	nvkm_wr32(device, 0x00b220, 0x00000044);
 99	nvkm_wr32(device, 0x00b300, 0x00801ec1);
100	nvkm_wr32(device, 0x00b390, 0x00000000);
101	nvkm_wr32(device, 0x00b394, 0x00000000);
102	nvkm_wr32(device, 0x00b398, 0x00000000);
103	nvkm_mask(device, 0x00b32c, 0x00000001, 0x00000001);
104
105	nvkm_wr32(device, 0x00b100, 0xffffffff);
106	nvkm_wr32(device, 0x00b140, 0xffffffff);
107
108	if (nvkm_msec(device, 2000,
109		if (!(nvkm_rd32(device, 0x00b200) & 0x00000001))
110			break;
111	) < 0) {
112		nvkm_error(subdev, "timeout %08x\n",
113			   nvkm_rd32(device, 0x00b200));
114		return -EBUSY;
115	}
116
117	return 0;
118}
119
120static const struct nvkm_engine_func
121nv50_mpeg = {
122	.init = nv50_mpeg_init,
123	.intr = nv50_mpeg_intr,
124	.cclass = &nv50_mpeg_cclass,
125	.sclass = {
126		{ -1, -1, NV31_MPEG, &nv31_mpeg_object },
127		{}
128	}
129};
130
131int
132nv50_mpeg_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
133	      struct nvkm_engine **pmpeg)
134{
135	return nvkm_engine_new_(&nv50_mpeg, device, type, inst, true, pmpeg);
136}