1 /* $NetBSD: nouveau_nvkm_subdev_fb_gm200.c,v 1.2 2021/12/18 23:45:39 riastradh Exp $ */
2
3 /*
4 * Copyright 2012 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
25 */
26 #include <sys/cdefs.h>
27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_fb_gm200.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 int
gm200_fb_init_page(struct nvkm_fb * fb)35 gm200_fb_init_page(struct nvkm_fb *fb)
36 {
37 struct nvkm_device *device = fb->subdev.device;
38 switch (fb->page) {
39 case 16: nvkm_mask(device, 0x100c80, 0x00001801, 0x00001001); break;
40 case 17: nvkm_mask(device, 0x100c80, 0x00001801, 0x00000000); break;
41 case 0: nvkm_mask(device, 0x100c80, 0x00001800, 0x00001800); break;
42 default:
43 return -EINVAL;
44 }
45 return 0;
46 }
47
48 void
gm200_fb_init(struct nvkm_fb * base)49 gm200_fb_init(struct nvkm_fb *base)
50 {
51 struct gf100_fb *fb = gf100_fb(base);
52 struct nvkm_device *device = fb->base.subdev.device;
53
54 if (fb->r100c10_page)
55 nvkm_wr32(device, 0x100c10, fb->r100c10 >> 8);
56
57 nvkm_wr32(device, 0x100cc8, nvkm_memory_addr(fb->base.mmu_wr) >> 8);
58 nvkm_wr32(device, 0x100ccc, nvkm_memory_addr(fb->base.mmu_rd) >> 8);
59 nvkm_mask(device, 0x100cc4, 0x00060000,
60 min(nvkm_memory_size(fb->base.mmu_rd) >> 16, (u64)2) << 17);
61 }
62
63 static const struct nvkm_fb_func
64 gm200_fb = {
65 .dtor = gf100_fb_dtor,
66 .oneinit = gf100_fb_oneinit,
67 .init = gm200_fb_init,
68 .init_page = gm200_fb_init_page,
69 .intr = gf100_fb_intr,
70 .ram_new = gm200_ram_new,
71 .default_bigpage = 0 /* per-instance. */,
72 };
73
74 int
gm200_fb_new(struct nvkm_device * device,int index,struct nvkm_fb ** pfb)75 gm200_fb_new(struct nvkm_device *device, int index, struct nvkm_fb **pfb)
76 {
77 return gf100_fb_new_(&gm200_fb, device, index, pfb);
78 }
79