Merge tag 'f2fs-for-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk...
[sfrench/cifs-2.6.git] / drivers / gpu / drm / nouveau / nvkm / subdev / vfn / tu102.c
1 /*
2  * Copyright 2021 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 <nvif/class.h>
25
26 static void
27 tu102_vfn_intr_reset(struct nvkm_intr *intr, int leaf, u32 mask)
28 {
29         struct nvkm_vfn *vfn = container_of(intr, typeof(*vfn), intr);
30
31         nvkm_wr32(vfn->subdev.device, vfn->addr.priv + 0x1000 + (leaf * 4), mask);
32 }
33
34 static void
35 tu102_vfn_intr_allow(struct nvkm_intr *intr, int leaf, u32 mask)
36 {
37         struct nvkm_vfn *vfn = container_of(intr, typeof(*vfn), intr);
38
39         nvkm_wr32(vfn->subdev.device, vfn->addr.priv + 0x1200 + (leaf * 4), mask);
40 }
41
42 static void
43 tu102_vfn_intr_block(struct nvkm_intr *intr, int leaf, u32 mask)
44 {
45         struct nvkm_vfn *vfn = container_of(intr, typeof(*vfn), intr);
46
47         nvkm_wr32(vfn->subdev.device, vfn->addr.priv + 0x1400 + (leaf * 4), mask);
48 }
49
50 static void
51 tu102_vfn_intr_rearm(struct nvkm_intr *intr)
52 {
53         struct nvkm_vfn *vfn = container_of(intr, typeof(*vfn), intr);
54
55         nvkm_wr32(vfn->subdev.device, vfn->addr.priv + 0x1608, 0x0000000f);
56 }
57
58 static void
59 tu102_vfn_intr_unarm(struct nvkm_intr *intr)
60 {
61         struct nvkm_vfn *vfn = container_of(intr, typeof(*vfn), intr);
62
63         nvkm_wr32(vfn->subdev.device, vfn->addr.priv + 0x1610, 0x0000000f);
64 }
65
66 static bool
67 tu102_vfn_intr_pending(struct nvkm_intr *intr)
68 {
69         struct nvkm_vfn *vfn = container_of(intr, typeof(*vfn), intr);
70         struct nvkm_device *device = vfn->subdev.device;
71         u32 intr_top = nvkm_rd32(device, vfn->addr.priv + 0x1600);
72         int pending = 0, leaf;
73
74         for (leaf = 0; leaf < 8; leaf++) {
75                 if (intr_top & BIT(leaf / 2)) {
76                         intr->stat[leaf] = nvkm_rd32(device, vfn->addr.priv + 0x1000 + (leaf * 4));
77                         if (intr->stat[leaf])
78                                 pending++;
79                 } else {
80                         intr->stat[leaf] = 0;
81                 }
82         }
83
84         return pending != 0;
85 }
86
87 const struct nvkm_intr_func
88 tu102_vfn_intr = {
89         .pending = tu102_vfn_intr_pending,
90         .unarm = tu102_vfn_intr_unarm,
91         .rearm = tu102_vfn_intr_rearm,
92         .block = tu102_vfn_intr_block,
93         .allow = tu102_vfn_intr_allow,
94         .reset = tu102_vfn_intr_reset,
95 };
96
97 static const struct nvkm_vfn_func
98 tu102_vfn = {
99         .intr = &tu102_vfn_intr,
100         .user = { 0x030000, 0x010000, { -1, -1, TURING_USERMODE_A } },
101 };
102
103 int
104 tu102_vfn_new(struct nvkm_device *device,
105               enum nvkm_subdev_type type, int inst, struct nvkm_vfn **pvfn)
106 {
107         return nvkm_vfn_new_(&tu102_vfn, device, type, inst, 0xb80000, pvfn);
108 }