g84.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 <engine/cipher.h>
 25#include <engine/fifo.h>
 26
 27#include <core/client.h>
 28#include <core/enum.h>
 29#include <core/gpuobj.h>
 30
 31#include <nvif/class.h>
 32
 33static int
 34g84_cipher_oclass_bind(struct nvkm_object *object, struct nvkm_gpuobj *parent,
 35		       int align, struct nvkm_gpuobj **pgpuobj)
 36{
 37	int ret = nvkm_gpuobj_new(object->engine->subdev.device, 16,
 38				  align, false, parent, pgpuobj);
 39	if (ret == 0) {
 40		nvkm_kmap(*pgpuobj);
 41		nvkm_wo32(*pgpuobj, 0x00, object->oclass);
 42		nvkm_wo32(*pgpuobj, 0x04, 0x00000000);
 43		nvkm_wo32(*pgpuobj, 0x08, 0x00000000);
 44		nvkm_wo32(*pgpuobj, 0x0c, 0x00000000);
 45		nvkm_done(*pgpuobj);
 46	}
 47	return ret;
 48}
 49
 50static const struct nvkm_object_func
 51g84_cipher_oclass_func = {
 52	.bind = g84_cipher_oclass_bind,
 53};
 54
 55static int
 56g84_cipher_cclass_bind(struct nvkm_object *object, struct nvkm_gpuobj *parent,
 57		       int align, struct nvkm_gpuobj **pgpuobj)
 58{
 59	return nvkm_gpuobj_new(object->engine->subdev.device, 256,
 60			       align, true, parent, pgpuobj);
 61
 62}
 63
 64static const struct nvkm_object_func
 65g84_cipher_cclass = {
 66	.bind = g84_cipher_cclass_bind,
 67};
 68
 69static const struct nvkm_bitfield
 70g84_cipher_intr_mask[] = {
 71	{ 0x00000001, "INVALID_STATE" },
 72	{ 0x00000002, "ILLEGAL_MTHD" },
 73	{ 0x00000004, "ILLEGAL_CLASS" },
 74	{ 0x00000080, "QUERY" },
 75	{ 0x00000100, "FAULT" },
 76	{}
 77};
 78
 79static void
 80g84_cipher_intr(struct nvkm_engine *cipher)
 81{
 82	struct nvkm_subdev *subdev = &cipher->subdev;
 83	struct nvkm_device *device = subdev->device;
 84	struct nvkm_chan *chan;
 85	u32 stat = nvkm_rd32(device, 0x102130);
 86	u32 mthd = nvkm_rd32(device, 0x102190);
 87	u32 data = nvkm_rd32(device, 0x102194);
 88	u32 inst = nvkm_rd32(device, 0x102188) & 0x7fffffff;
 89	unsigned long flags;
 90	char msg[128];
 91
 92	chan = nvkm_chan_get_inst(cipher, (u64)inst << 12, &flags);
 93	if (stat) {
 94		nvkm_snprintbf(msg, sizeof(msg), g84_cipher_intr_mask, stat);
 95		nvkm_error(subdev,  "%08x [%s] ch %d [%010llx %s] "
 96				    "mthd %04x data %08x\n", stat, msg,
 97			   chan ? chan->id : -1, (u64)inst << 12,
 98			   chan ? chan->name : "unknown",
 99			   mthd, data);
100	}
101	nvkm_chan_put(&chan, flags);
102
103	nvkm_wr32(device, 0x102130, stat);
104	nvkm_wr32(device, 0x10200c, 0x10);
105}
106
107static int
108g84_cipher_init(struct nvkm_engine *cipher)
109{
110	struct nvkm_device *device = cipher->subdev.device;
111	nvkm_wr32(device, 0x102130, 0xffffffff);
112	nvkm_wr32(device, 0x102140, 0xffffffbf);
113	nvkm_wr32(device, 0x10200c, 0x00000010);
114	return 0;
115}
116
117static const struct nvkm_engine_func
118g84_cipher = {
119	.init = g84_cipher_init,
120	.intr = g84_cipher_intr,
121	.cclass = &g84_cipher_cclass,
122	.sclass = {
123		{ -1, -1, NV74_CIPHER, &g84_cipher_oclass_func },
124		{}
125	}
126};
127
128int
129g84_cipher_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
130	       struct nvkm_engine **pengine)
131{
132	return nvkm_engine_new_(&g84_cipher, device, type, inst, true, pengine);
133}