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
29 void
gp100_fault_buffer_intr(struct nvkm_fault_buffer * buffer,bool enable)30 gp100_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
36 void
gp100_fault_buffer_fini(struct nvkm_fault_buffer * buffer)37 gp100_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
43 void
gp100_fault_buffer_init(struct nvkm_fault_buffer * buffer)44 gp100_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
gp100_fault_buffer_pin(struct nvkm_fault_buffer * buffer)52 u64 gp100_fault_buffer_pin(struct nvkm_fault_buffer *buffer)
53 {
54 return nvkm_memory_bar2(buffer->mem);
55 }
56
57 void
gp100_fault_buffer_info(struct nvkm_fault_buffer * buffer)58 gp100_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
65 void
gp100_fault_intr(struct nvkm_fault * fault)66 gp100_fault_intr(struct nvkm_fault *fault)
67 {
68 nvkm_event_ntfy(&fault->event, 0, NVKM_FAULT_BUFFER_EVENT_PENDING);
69 }
70
71 static const struct nvkm_fault_func
72 gp100_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
84 int
gp100_fault_new(struct nvkm_device * device,enum nvkm_subdev_type type,int inst,struct nvkm_fault ** pfault)85 gp100_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 }
90