1/*
2 * Copyright 2013 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 "nv50.h"
25
26#include <subdev/bios.h>
27#include <subdev/bios/init.h>
28#include <subdev/gsp.h>
29
30void
31gm107_devinit_disable(struct nvkm_devinit *init)
32{
33	struct nvkm_device *device = init->subdev.device;
34	u32 r021c00 = nvkm_rd32(device, 0x021c00);
35	u32 r021c04 = nvkm_rd32(device, 0x021c04);
36
37	/* gsp only wants to enable/disable display */
38	if (!nvkm_gsp_rm(device->gsp)) {
39		if (r021c00 & 0x00000001)
40			nvkm_subdev_disable(device, NVKM_ENGINE_CE, 0);
41		if (r021c00 & 0x00000004)
42			nvkm_subdev_disable(device, NVKM_ENGINE_CE, 2);
43	}
44	if (r021c04 & 0x00000001)
45		nvkm_subdev_disable(device, NVKM_ENGINE_DISP, 0);
46}
47
48static const struct nvkm_devinit_func
49gm107_devinit = {
50	.preinit = gf100_devinit_preinit,
51	.init = nv50_devinit_init,
52	.post = nv04_devinit_post,
53	.pll_set = gf100_devinit_pll_set,
54	.disable = gm107_devinit_disable,
55};
56
57int
58gm107_devinit_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
59		  struct nvkm_devinit **pinit)
60{
61	return nv50_devinit_new_(&gm107_devinit, device, type, inst, pinit);
62}
63