1 /* $NetBSD: nouveau_nvkm_subdev_mc_tu102.c,v 1.2 2021/12/18 23:45:40 riastradh Exp $ */
2
3 /*
4 * Copyright 2018 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 */
24 #include <sys/cdefs.h>
25 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_mc_tu102.c,v 1.2 2021/12/18 23:45:40 riastradh Exp $");
26
27 #include "priv.h"
28
29 static void
tu102_mc_intr_hack(struct nvkm_mc * mc,bool * handled)30 tu102_mc_intr_hack(struct nvkm_mc *mc, bool *handled)
31 {
32 struct nvkm_device *device = mc->subdev.device;
33 u32 stat = nvkm_rd32(device, 0xb81010);
34 if (stat & 0x00000050) {
35 struct nvkm_subdev *subdev =
36 nvkm_device_subdev(device, NVKM_SUBDEV_FAULT);
37 nvkm_wr32(device, 0xb81010, stat & 0x00000050);
38 if (subdev)
39 nvkm_subdev_intr(subdev);
40 *handled = true;
41 }
42 }
43
44 static const struct nvkm_mc_func
45 tu102_mc = {
46 .init = nv50_mc_init,
47 .intr = gp100_mc_intr,
48 .intr_unarm = gp100_mc_intr_unarm,
49 .intr_rearm = gp100_mc_intr_rearm,
50 .intr_mask = gp100_mc_intr_mask,
51 .intr_stat = gf100_mc_intr_stat,
52 .intr_hack = tu102_mc_intr_hack,
53 .reset = gk104_mc_reset,
54 };
55
56 int
tu102_mc_new(struct nvkm_device * device,int index,struct nvkm_mc ** pmc)57 tu102_mc_new(struct nvkm_device *device, int index, struct nvkm_mc **pmc)
58 {
59 return gp100_mc_new_(&tu102_mc, device, index, pmc);
60 }
61