gm200.c

 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
29int
30gm200_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
43void
44gm200_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
55static const struct nvkm_fb_func
56gm200_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
67int
68gm200_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}