1 /*
2  * Copyright 2015 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 "priv.h"
25 
26 #include <subdev/fb.h>
27 #include <subdev/timer.h>
28 
29 static int
30 gm200_ltc_oneinit(struct nvkm_ltc *ltc)
31 {
32 	struct nvkm_device *device = ltc->subdev.device;
33 
34 	ltc->ltc_nr = nvkm_rd32(device, 0x12006c);
35 	ltc->lts_nr = nvkm_rd32(device, 0x17e280) >> 28;
36 
37 	return gf100_ltc_oneinit_tag_ram(ltc);
38 }
39 static void
40 gm200_ltc_init(struct nvkm_ltc *ltc)
41 {
42 	nvkm_wr32(ltc->subdev.device, 0x17e278, ltc->tag_base);
43 }
44 
45 static const struct nvkm_ltc_func
46 gm200_ltc = {
47 	.oneinit = gm200_ltc_oneinit,
48 	.init = gm200_ltc_init,
49 	.intr = gm107_ltc_intr,
50 	.cbc_clear = gm107_ltc_cbc_clear,
51 	.cbc_wait = gm107_ltc_cbc_wait,
52 	.zbc = 16,
53 	.zbc_clear_color = gm107_ltc_zbc_clear_color,
54 	.zbc_clear_depth = gm107_ltc_zbc_clear_depth,
55 	.invalidate = gf100_ltc_invalidate,
56 	.flush = gf100_ltc_flush,
57 };
58 
59 int
60 gm200_ltc_new(struct nvkm_device *device, int index, struct nvkm_ltc **pltc)
61 {
62 	return nvkm_ltc_new_(&gm200_ltc, device, index, pltc);
63 }
64