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 static void
ga100_mc_intr_unarm(struct nvkm_mc * mc)25 ga100_mc_intr_unarm(struct nvkm_mc *mc)
26 {
27 nvkm_wr32(mc->subdev.device, 0xb81610, 0x00000004);
28 }
29
30 static void
ga100_mc_intr_rearm(struct nvkm_mc * mc)31 ga100_mc_intr_rearm(struct nvkm_mc *mc)
32 {
33 nvkm_wr32(mc->subdev.device, 0xb81608, 0x00000004);
34 }
35
36 static void
ga100_mc_intr_mask(struct nvkm_mc * mc,u32 mask,u32 intr)37 ga100_mc_intr_mask(struct nvkm_mc *mc, u32 mask, u32 intr)
38 {
39 nvkm_wr32(mc->subdev.device, 0xb81210, mask & intr );
40 nvkm_wr32(mc->subdev.device, 0xb81410, mask & ~(mask & intr));
41 }
42
43 static u32
ga100_mc_intr_stat(struct nvkm_mc * mc)44 ga100_mc_intr_stat(struct nvkm_mc *mc)
45 {
46 u32 intr_top = nvkm_rd32(mc->subdev.device, 0xb81600), intr = 0x00000000;
47 if (intr_top & 0x00000004)
48 intr = nvkm_mask(mc->subdev.device, 0xb81010, 0x00000000, 0x00000000);
49 return intr;
50 }
51
52 static void
ga100_mc_init(struct nvkm_mc * mc)53 ga100_mc_init(struct nvkm_mc *mc)
54 {
55 nv50_mc_init(mc);
56 nvkm_wr32(mc->subdev.device, 0xb81210, 0xffffffff);
57 }
58
59 static const struct nvkm_mc_func
60 ga100_mc = {
61 .init = ga100_mc_init,
62 .intr = gp100_mc_intr,
63 .intr_unarm = ga100_mc_intr_unarm,
64 .intr_rearm = ga100_mc_intr_rearm,
65 .intr_mask = ga100_mc_intr_mask,
66 .intr_stat = ga100_mc_intr_stat,
67 .reset = gk104_mc_reset,
68 };
69
70 int
ga100_mc_new(struct nvkm_device * device,enum nvkm_subdev_type type,int inst,struct nvkm_mc ** pmc)71 ga100_mc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_mc **pmc)
72 {
73 return nvkm_mc_new_(&ga100_mc, device, type, inst, pmc);
74 }
75