1 /* $NetBSD: nouveau_nvkm_subdev_fb_gp100.c,v 1.2 2021/12/18 23:45:39 riastradh Exp $ */
2
3 /*
4 * Copyright 2016 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 * Authors: Ben Skeggs <bskeggs@redhat.com>
25 */
26 #include <sys/cdefs.h>
27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_fb_gp100.c,v 1.2 2021/12/18 23:45:39 riastradh Exp $");
28
29 #include "gf100.h"
30 #include "ram.h"
31
32 #include <core/memory.h>
33
34 void
gp100_fb_init_unkn(struct nvkm_fb * base)35 gp100_fb_init_unkn(struct nvkm_fb *base)
36 {
37 struct nvkm_device *device = gf100_fb(base)->base.subdev.device;
38 nvkm_wr32(device, 0x1fac80, nvkm_rd32(device, 0x100c80));
39 nvkm_wr32(device, 0x1facc4, nvkm_rd32(device, 0x100cc4));
40 nvkm_wr32(device, 0x1facc8, nvkm_rd32(device, 0x100cc8));
41 nvkm_wr32(device, 0x1faccc, nvkm_rd32(device, 0x100ccc));
42 }
43
44 void
gp100_fb_init_remapper(struct nvkm_fb * fb)45 gp100_fb_init_remapper(struct nvkm_fb *fb)
46 {
47 struct nvkm_device *device = fb->subdev.device;
48 /* Disable address remapper. */
49 nvkm_mask(device, 0x100c14, 0x00040000, 0x00000000);
50 }
51
52 void
gp100_fb_init(struct nvkm_fb * base)53 gp100_fb_init(struct nvkm_fb *base)
54 {
55 struct gf100_fb *fb = gf100_fb(base);
56 struct nvkm_device *device = fb->base.subdev.device;
57
58 if (fb->r100c10_page)
59 nvkm_wr32(device, 0x100c10, fb->r100c10 >> 8);
60
61 nvkm_wr32(device, 0x100cc8, nvkm_memory_addr(fb->base.mmu_wr) >> 8);
62 nvkm_wr32(device, 0x100ccc, nvkm_memory_addr(fb->base.mmu_rd) >> 8);
63 nvkm_mask(device, 0x100cc4, 0x00060000,
64 min(nvkm_memory_size(fb->base.mmu_rd) >> 16, (u64)2) << 17);
65 }
66
67 static const struct nvkm_fb_func
68 gp100_fb = {
69 .dtor = gf100_fb_dtor,
70 .oneinit = gf100_fb_oneinit,
71 .init = gp100_fb_init,
72 .init_remapper = gp100_fb_init_remapper,
73 .init_page = gm200_fb_init_page,
74 .init_unkn = gp100_fb_init_unkn,
75 .ram_new = gp100_ram_new,
76 };
77
78 int
gp100_fb_new(struct nvkm_device * device,int index,struct nvkm_fb ** pfb)79 gp100_fb_new(struct nvkm_device *device, int index, struct nvkm_fb **pfb)
80 {
81 return gf100_fb_new_(&gp100_fb, device, index, pfb);
82 }
83