| /* |
| * 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 <engine/cipher.h> |
| #include <engine/fifo.h> |
| |
| #include <core/client.h> |
| #include <core/engctx.h> |
| #include <core/enum.h> |
| |
| /******************************************************************************* |
| * Crypt object classes |
| ******************************************************************************/ |
| |
| static int |
| g84_cipher_object_ctor(struct nvkm_object *parent, |
| struct nvkm_object *engine, |
| struct nvkm_oclass *oclass, void *data, u32 size, |
| struct nvkm_object **pobject) |
| { |
| struct nvkm_gpuobj *obj; |
| int ret; |
| |
| ret = nvkm_gpuobj_create(parent, engine, oclass, 0, parent, |
| 16, 16, 0, &obj); |
| *pobject = nv_object(obj); |
| if (ret) |
| return ret; |
| |
| nv_wo32(obj, 0x00, nv_mclass(obj)); |
| nv_wo32(obj, 0x04, 0x00000000); |
| nv_wo32(obj, 0x08, 0x00000000); |
| nv_wo32(obj, 0x0c, 0x00000000); |
| return 0; |
| } |
| |
| static struct nvkm_ofuncs |
| g84_cipher_ofuncs = { |
| .ctor = g84_cipher_object_ctor, |
| .dtor = _nvkm_gpuobj_dtor, |
| .init = _nvkm_gpuobj_init, |
| .fini = _nvkm_gpuobj_fini, |
| .rd32 = _nvkm_gpuobj_rd32, |
| .wr32 = _nvkm_gpuobj_wr32, |
| }; |
| |
| static struct nvkm_oclass |
| g84_cipher_sclass[] = { |
| { 0x74c1, &g84_cipher_ofuncs }, |
| {} |
| }; |
| |
| /******************************************************************************* |
| * PCIPHER context |
| ******************************************************************************/ |
| |
| static struct nvkm_oclass |
| g84_cipher_cclass = { |
| .handle = NV_ENGCTX(CIPHER, 0x84), |
| .ofuncs = &(struct nvkm_ofuncs) { |
| .ctor = _nvkm_engctx_ctor, |
| .dtor = _nvkm_engctx_dtor, |
| .init = _nvkm_engctx_init, |
| .fini = _nvkm_engctx_fini, |
| .rd32 = _nvkm_engctx_rd32, |
| .wr32 = _nvkm_engctx_wr32, |
| }, |
| }; |
| |
| /******************************************************************************* |
| * PCIPHER engine/subdev functions |
| ******************************************************************************/ |
| |
| static const struct nvkm_bitfield |
| g84_cipher_intr_mask[] = { |
| { 0x00000001, "INVALID_STATE" }, |
| { 0x00000002, "ILLEGAL_MTHD" }, |
| { 0x00000004, "ILLEGAL_CLASS" }, |
| { 0x00000080, "QUERY" }, |
| { 0x00000100, "FAULT" }, |
| {} |
| }; |
| |
| static void |
| g84_cipher_intr(struct nvkm_subdev *subdev) |
| { |
| struct nvkm_fifo *fifo = nvkm_fifo(subdev); |
| struct nvkm_engine *engine = nv_engine(subdev); |
| struct nvkm_object *engctx; |
| struct nvkm_engine *cipher = (void *)subdev; |
| struct nvkm_device *device = cipher->subdev.device; |
| u32 stat = nvkm_rd32(device, 0x102130); |
| u32 mthd = nvkm_rd32(device, 0x102190); |
| u32 data = nvkm_rd32(device, 0x102194); |
| u32 inst = nvkm_rd32(device, 0x102188) & 0x7fffffff; |
| int chid; |
| |
| engctx = nvkm_engctx_get(engine, inst); |
| chid = fifo->chid(fifo, engctx); |
| |
| if (stat) { |
| nv_error(cipher, "%s", ""); |
| nvkm_bitfield_print(g84_cipher_intr_mask, stat); |
| pr_cont(" ch %d [0x%010llx %s] mthd 0x%04x data 0x%08x\n", |
| chid, (u64)inst << 12, nvkm_client_name(engctx), |
| mthd, data); |
| } |
| |
| nvkm_wr32(device, 0x102130, stat); |
| nvkm_wr32(device, 0x10200c, 0x10); |
| |
| nvkm_engctx_put(engctx); |
| } |
| |
| static int |
| g84_cipher_ctor(struct nvkm_object *parent, struct nvkm_object *engine, |
| struct nvkm_oclass *oclass, void *data, u32 size, |
| struct nvkm_object **pobject) |
| { |
| struct nvkm_engine *cipher; |
| int ret; |
| |
| ret = nvkm_engine_create(parent, engine, oclass, true, |
| "PCIPHER", "cipher", &cipher); |
| *pobject = nv_object(cipher); |
| if (ret) |
| return ret; |
| |
| nv_subdev(cipher)->unit = 0x00004000; |
| nv_subdev(cipher)->intr = g84_cipher_intr; |
| nv_engine(cipher)->cclass = &g84_cipher_cclass; |
| nv_engine(cipher)->sclass = g84_cipher_sclass; |
| return 0; |
| } |
| |
| static int |
| g84_cipher_init(struct nvkm_object *object) |
| { |
| struct nvkm_engine *cipher = (void *)object; |
| struct nvkm_device *device = cipher->subdev.device; |
| int ret; |
| |
| ret = nvkm_engine_init(cipher); |
| if (ret) |
| return ret; |
| |
| nvkm_wr32(device, 0x102130, 0xffffffff); |
| nvkm_wr32(device, 0x102140, 0xffffffbf); |
| nvkm_wr32(device, 0x10200c, 0x00000010); |
| return 0; |
| } |
| |
| struct nvkm_oclass |
| g84_cipher_oclass = { |
| .handle = NV_ENGINE(CIPHER, 0x84), |
| .ofuncs = &(struct nvkm_ofuncs) { |
| .ctor = g84_cipher_ctor, |
| .dtor = _nvkm_engine_dtor, |
| .init = g84_cipher_init, |
| .fini = _nvkm_engine_fini, |
| }, |
| }; |