1 /*
2 * Copyright 2018 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 "gf100.h"
23
24 #include <core/memory.h>
25 #include <subdev/timer.h>
26
27 static void
tu102_bar_bar2_wait(struct nvkm_bar * bar)28 tu102_bar_bar2_wait(struct nvkm_bar *bar)
29 {
30 struct nvkm_device *device = bar->subdev.device;
31 nvkm_msec(device, 2000,
32 if (!(nvkm_rd32(device, 0xb80f50) & 0x0000000c))
33 break;
34 );
35 }
36
37 static void
tu102_bar_bar2_fini(struct nvkm_bar * bar)38 tu102_bar_bar2_fini(struct nvkm_bar *bar)
39 {
40 nvkm_mask(bar->subdev.device, 0xb80f48, 0x80000000, 0x00000000);
41 }
42
43 static void
tu102_bar_bar2_init(struct nvkm_bar * base)44 tu102_bar_bar2_init(struct nvkm_bar *base)
45 {
46 struct nvkm_device *device = base->subdev.device;
47 struct gf100_bar *bar = gf100_bar(base);
48 u32 addr = nvkm_memory_addr(bar->bar[0].inst) >> 12;
49 if (bar->bar2_halve)
50 addr |= 0x40000000;
51 nvkm_wr32(device, 0xb80f48, 0x80000000 | addr);
52 }
53
54 static void
tu102_bar_bar1_wait(struct nvkm_bar * bar)55 tu102_bar_bar1_wait(struct nvkm_bar *bar)
56 {
57 struct nvkm_device *device = bar->subdev.device;
58 nvkm_msec(device, 2000,
59 if (!(nvkm_rd32(device, 0xb80f50) & 0x00000003))
60 break;
61 );
62 }
63
64 static void
tu102_bar_bar1_fini(struct nvkm_bar * bar)65 tu102_bar_bar1_fini(struct nvkm_bar *bar)
66 {
67 nvkm_mask(bar->subdev.device, 0xb80f40, 0x80000000, 0x00000000);
68 }
69
70 static void
tu102_bar_bar1_init(struct nvkm_bar * base)71 tu102_bar_bar1_init(struct nvkm_bar *base)
72 {
73 struct nvkm_device *device = base->subdev.device;
74 struct gf100_bar *bar = gf100_bar(base);
75 const u32 addr = nvkm_memory_addr(bar->bar[1].inst) >> 12;
76 nvkm_wr32(device, 0xb80f40, 0x80000000 | addr);
77 }
78
79 static const struct nvkm_bar_func
80 tu102_bar = {
81 .dtor = gf100_bar_dtor,
82 .oneinit = gf100_bar_oneinit,
83 .bar1.init = tu102_bar_bar1_init,
84 .bar1.fini = tu102_bar_bar1_fini,
85 .bar1.wait = tu102_bar_bar1_wait,
86 .bar1.vmm = gf100_bar_bar1_vmm,
87 .bar2.init = tu102_bar_bar2_init,
88 .bar2.fini = tu102_bar_bar2_fini,
89 .bar2.wait = tu102_bar_bar2_wait,
90 .bar2.vmm = gf100_bar_bar2_vmm,
91 .flush = g84_bar_flush,
92 };
93
94 int
tu102_bar_new(struct nvkm_device * device,int index,struct nvkm_bar ** pbar)95 tu102_bar_new(struct nvkm_device *device, int index, struct nvkm_bar **pbar)
96 {
97 return gf100_bar_new_(&tu102_bar, device, index, pbar);
98 }
99
