xref: /linux/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gm200.c (revision 7ae9fb1b7ecbb5d85d07857943f677fd1a559b18)
1 /*
2  * Copyright 2012 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
23  */
24 #include "gf100.h"
25 #include "ram.h"
26 
27 #include <core/memory.h>
28 
29 int
gm200_fb_init_page(struct nvkm_fb * fb)30 gm200_fb_init_page(struct nvkm_fb *fb)
31 {
32 	struct nvkm_device *device = fb->subdev.device;
33 	switch (fb->page) {
34 	case 16: nvkm_mask(device, 0x100c80, 0x00001801, 0x00001001); break;
35 	case 17: nvkm_mask(device, 0x100c80, 0x00001801, 0x00000000); break;
36 	case  0: nvkm_mask(device, 0x100c80, 0x00001800, 0x00001800); break;
37 	default:
38 		return -EINVAL;
39 	}
40 	return 0;
41 }
42 
43 void
gm200_fb_init(struct nvkm_fb * base)44 gm200_fb_init(struct nvkm_fb *base)
45 {
46 	struct gf100_fb *fb = gf100_fb(base);
47 	struct nvkm_device *device = fb->base.subdev.device;
48 
49 	nvkm_wr32(device, 0x100cc8, nvkm_memory_addr(fb->base.mmu_wr) >> 8);
50 	nvkm_wr32(device, 0x100ccc, nvkm_memory_addr(fb->base.mmu_rd) >> 8);
51 	nvkm_mask(device, 0x100cc4, 0x00060000,
52 		  min(nvkm_memory_size(fb->base.mmu_rd) >> 16, (u64)2) << 17);
53 }
54 
55 static const struct nvkm_fb_func
56 gm200_fb = {
57 	.dtor = gf100_fb_dtor,
58 	.oneinit = gf100_fb_oneinit,
59 	.init = gm200_fb_init,
60 	.init_page = gm200_fb_init_page,
61 	.intr = gf100_fb_intr,
62 	.sysmem.flush_page_init = gf100_fb_sysmem_flush_page_init,
63 	.ram_new = gm200_ram_new,
64 	.default_bigpage = 0 /* per-instance. */,
65 };
66 
67 int
gm200_fb_new(struct nvkm_device * device,enum nvkm_subdev_type type,int inst,struct nvkm_fb ** pfb)68 gm200_fb_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb)
69 {
70 	return gf100_fb_new_(&gm200_fb, device, type, inst, pfb);
71 }
72