gk104.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 "priv.h"
25
26static void
27gk104_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
38static const struct nvkm_ltc_func
39gk104_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
53int
54gk104_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}