1/*
 2 * Copyright 2018 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#include "priv.h"
23
24#include <core/memory.h>
25#include <subdev/mc.h>
26
27#include <nvif/class.h>
28
29void
30gp100_fault_buffer_intr(struct nvkm_fault_buffer *buffer, bool enable)
31{
32	struct nvkm_device *device = buffer->fault->subdev.device;
33	nvkm_mc_intr_mask(device, NVKM_SUBDEV_FAULT, 0, enable);
34}
35
36void
37gp100_fault_buffer_fini(struct nvkm_fault_buffer *buffer)
38{
39	struct nvkm_device *device = buffer->fault->subdev.device;
40	nvkm_mask(device, 0x002a70, 0x00000001, 0x00000000);
41}
42
43void
44gp100_fault_buffer_init(struct nvkm_fault_buffer *buffer)
45{
46	struct nvkm_device *device = buffer->fault->subdev.device;
47	nvkm_wr32(device, 0x002a74, upper_32_bits(buffer->addr));
48	nvkm_wr32(device, 0x002a70, lower_32_bits(buffer->addr));
49	nvkm_mask(device, 0x002a70, 0x00000001, 0x00000001);
50}
51
52u64 gp100_fault_buffer_pin(struct nvkm_fault_buffer *buffer)
53{
54	return nvkm_memory_bar2(buffer->mem);
55}
56
57void
58gp100_fault_buffer_info(struct nvkm_fault_buffer *buffer)
59{
60	buffer->entries = nvkm_rd32(buffer->fault->subdev.device, 0x002a78);
61	buffer->get = 0x002a7c;
62	buffer->put = 0x002a80;
63}
64
65void
66gp100_fault_intr(struct nvkm_fault *fault)
67{
68	nvkm_event_ntfy(&fault->event, 0, NVKM_FAULT_BUFFER_EVENT_PENDING);
69}
70
71static const struct nvkm_fault_func
72gp100_fault = {
73	.intr = gp100_fault_intr,
74	.buffer.nr = 1,
75	.buffer.entry_size = 32,
76	.buffer.info = gp100_fault_buffer_info,
77	.buffer.pin = gp100_fault_buffer_pin,
78	.buffer.init = gp100_fault_buffer_init,
79	.buffer.fini = gp100_fault_buffer_fini,
80	.buffer.intr = gp100_fault_buffer_intr,
81	.user = { { 0, 0, MAXWELL_FAULT_BUFFER_A }, 0 },
82};
83
84int
85gp100_fault_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
86		struct nvkm_fault **pfault)
87{
88	return nvkm_fault_new_(&gp100_fault, device, type, inst, pfault);
89}