1 /* $NetBSD: nouveau_nvkm_subdev_bar_tu102.c,v 1.2 2021/12/18 23:45:38 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_bar_tu102.c,v 1.2 2021/12/18 23:45:38 riastradh Exp $");
26
27 #include "gf100.h"
28
29 #include <core/memory.h>
30 #include <subdev/timer.h>
31
32 static void
tu102_bar_bar2_wait(struct nvkm_bar * bar)33 tu102_bar_bar2_wait(struct nvkm_bar *bar)
34 {
35 struct nvkm_device *device = bar->subdev.device;
36 nvkm_msec(device, 2000,
37 if (!(nvkm_rd32(device, 0xb80f50) & 0x0000000c))
38 break;
39 );
40 }
41
42 static void
tu102_bar_bar2_fini(struct nvkm_bar * bar)43 tu102_bar_bar2_fini(struct nvkm_bar *bar)
44 {
45 nvkm_mask(bar->subdev.device, 0xb80f48, 0x80000000, 0x00000000);
46 }
47
48 static void
tu102_bar_bar2_init(struct nvkm_bar * base)49 tu102_bar_bar2_init(struct nvkm_bar *base)
50 {
51 struct nvkm_device *device = base->subdev.device;
52 struct gf100_bar *bar = gf100_bar(base);
53 u32 addr = nvkm_memory_addr(bar->bar[0].inst) >> 12;
54 if (bar->bar2_halve)
55 addr |= 0x40000000;
56 nvkm_wr32(device, 0xb80f48, 0x80000000 | addr);
57 }
58
59 static void
tu102_bar_bar1_wait(struct nvkm_bar * bar)60 tu102_bar_bar1_wait(struct nvkm_bar *bar)
61 {
62 struct nvkm_device *device = bar->subdev.device;
63 nvkm_msec(device, 2000,
64 if (!(nvkm_rd32(device, 0xb80f50) & 0x00000003))
65 break;
66 );
67 }
68
69 static void
tu102_bar_bar1_fini(struct nvkm_bar * bar)70 tu102_bar_bar1_fini(struct nvkm_bar *bar)
71 {
72 nvkm_mask(bar->subdev.device, 0xb80f40, 0x80000000, 0x00000000);
73 }
74
75 static void
tu102_bar_bar1_init(struct nvkm_bar * base)76 tu102_bar_bar1_init(struct nvkm_bar *base)
77 {
78 struct nvkm_device *device = base->subdev.device;
79 struct gf100_bar *bar = gf100_bar(base);
80 const u32 addr = nvkm_memory_addr(bar->bar[1].inst) >> 12;
81 nvkm_wr32(device, 0xb80f40, 0x80000000 | addr);
82 }
83
84 static const struct nvkm_bar_func
85 tu102_bar = {
86 .dtor = gf100_bar_dtor,
87 .oneinit = gf100_bar_oneinit,
88 .bar1.init = tu102_bar_bar1_init,
89 .bar1.fini = tu102_bar_bar1_fini,
90 .bar1.wait = tu102_bar_bar1_wait,
91 .bar1.vmm = gf100_bar_bar1_vmm,
92 .bar2.init = tu102_bar_bar2_init,
93 .bar2.fini = tu102_bar_bar2_fini,
94 .bar2.wait = tu102_bar_bar2_wait,
95 .bar2.vmm = gf100_bar_bar2_vmm,
96 .flush = g84_bar_flush,
97 };
98
99 int
tu102_bar_new(struct nvkm_device * device,int index,struct nvkm_bar ** pbar)100 tu102_bar_new(struct nvkm_device *device, int index, struct nvkm_bar **pbar)
101 {
102 return gf100_bar_new_(&tu102_bar, device, index, pbar);
103 }
104