2 * Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
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5 * copy of this software and associated documentation files (the "Software"),
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9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
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15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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20 * DEALINGS IN THE SOFTWARE.
24 #include <core/msgqueue.h>
25 #include <engine/falcon.h>
28 nvkm_sec2_dtor(struct nvkm_engine *engine)
30 struct nvkm_sec2 *sec2 = nvkm_sec2(engine);
31 nvkm_msgqueue_del(&sec2->queue);
32 nvkm_falcon_del(&sec2->falcon);
37 nvkm_sec2_intr(struct nvkm_engine *engine)
39 struct nvkm_sec2 *sec2 = nvkm_sec2(engine);
40 struct nvkm_subdev *subdev = &engine->subdev;
41 struct nvkm_device *device = subdev->device;
42 u32 disp = nvkm_rd32(device, 0x8701c);
43 u32 intr = nvkm_rd32(device, 0x87008) & disp & ~(disp >> 16);
45 if (intr & 0x00000040) {
46 schedule_work(&sec2->work);
47 nvkm_wr32(device, 0x87004, 0x00000040);
52 nvkm_error(subdev, "unhandled intr %08x\n", intr);
53 nvkm_wr32(device, 0x87004, intr);
59 nvkm_sec2_recv(struct work_struct *work)
61 struct nvkm_sec2 *sec2 = container_of(work, typeof(*sec2), work);
62 nvkm_msgqueue_recv(sec2->queue);
67 nvkm_sec2_oneinit(struct nvkm_engine *engine)
69 struct nvkm_sec2 *sec2 = nvkm_sec2(engine);
70 return nvkm_falcon_v1_new(&sec2->engine.subdev, "SEC2", 0x87000,
75 nvkm_sec2_fini(struct nvkm_engine *engine, bool suspend)
77 struct nvkm_sec2 *sec2 = nvkm_sec2(engine);
78 flush_work(&sec2->work);
82 static const struct nvkm_engine_func
84 .dtor = nvkm_sec2_dtor,
85 .oneinit = nvkm_sec2_oneinit,
86 .fini = nvkm_sec2_fini,
87 .intr = nvkm_sec2_intr,
91 nvkm_sec2_new_(struct nvkm_device *device, int index,
92 struct nvkm_sec2 **psec2)
94 struct nvkm_sec2 *sec2;
96 if (!(sec2 = *psec2 = kzalloc(sizeof(*sec2), GFP_KERNEL)))
98 INIT_WORK(&sec2->work, nvkm_sec2_recv);
100 return nvkm_engine_ctor(&nvkm_sec2, device, index, true, &sec2->engine);