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 "priv.h"
25 
26 static void
gk104_ltc_init(struct nvkm_ltc * ltc)27 gk104_ltc_init(struct nvkm_ltc *ltc)
28 {
29 	struct nvkm_device *device = ltc->subdev.device;
30 	u32 lpg128 = !(nvkm_rd32(device, 0x100c80) & 0x00000001);
31 
32 	nvkm_wr32(device, 0x17e8d8, ltc->ltc_nr);
33 	nvkm_wr32(device, 0x17e000, ltc->ltc_nr);
34 	nvkm_wr32(device, 0x17e8d4, ltc->tag_base);
35 	nvkm_mask(device, 0x17e8c0, 0x00000002, lpg128 ? 0x00000002 : 0x00000000);
36 }
37 
38 static const struct nvkm_ltc_func
39 gk104_ltc = {
40 	.oneinit = gf100_ltc_oneinit,
41 	.init = gk104_ltc_init,
42 	.intr = gf100_ltc_intr,
43 	.cbc_clear = gf100_ltc_cbc_clear,
44 	.cbc_wait = gf100_ltc_cbc_wait,
45 	.zbc_color = 16,
46 	.zbc_depth = 16,
47 	.zbc_clear_color = gf100_ltc_zbc_clear_color,
48 	.zbc_clear_depth = gf100_ltc_zbc_clear_depth,
49 	.invalidate = gf100_ltc_invalidate,
50 	.flush = gf100_ltc_flush,
51 };
52 
53 int
gk104_ltc_new(struct nvkm_device * device,enum nvkm_subdev_type type,int inst,struct nvkm_ltc ** pltc)54 gk104_ltc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
55 	      struct nvkm_ltc **pltc)
56 {
57 	return nvkm_ltc_new_(&gk104_ltc, device, type, inst, pltc);
58 }
59