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