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