1 /*
2 * Copyright 2016 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 void
gp100_ltc_intr(struct nvkm_ltc * ltc)27 gp100_ltc_intr(struct nvkm_ltc *ltc)
28 {
29 struct nvkm_device *device = ltc->subdev.device;
30 u32 mask;
31
32 mask = nvkm_rd32(device, 0x0001c0);
33 while (mask) {
34 u32 s, c = __ffs(mask);
35 for (s = 0; s < ltc->lts_nr; s++)
36 gm107_ltc_intr_lts(ltc, c, s);
37 mask &= ~(1 << c);
38 }
39 }
40
41 int
gp100_ltc_oneinit(struct nvkm_ltc * ltc)42 gp100_ltc_oneinit(struct nvkm_ltc *ltc)
43 {
44 struct nvkm_device *device = ltc->subdev.device;
45 ltc->ltc_nr = nvkm_rd32(device, 0x12006c);
46 ltc->lts_nr = nvkm_rd32(device, 0x17e280) >> 28;
47 /*XXX: tagram allocation - TBD */
48 return 0;
49 }
50
51 void
gp100_ltc_init(struct nvkm_ltc * ltc)52 gp100_ltc_init(struct nvkm_ltc *ltc)
53 {
54 /*XXX: PMU LS call to setup tagram address */
55 }
56
57 static const struct nvkm_ltc_func
58 gp100_ltc = {
59 .oneinit = gp100_ltc_oneinit,
60 .init = gp100_ltc_init,
61 .intr = gp100_ltc_intr,
62 .cbc_clear = gm107_ltc_cbc_clear,
63 .cbc_wait = gm107_ltc_cbc_wait,
64 .zbc_color = 16,
65 .zbc_depth = 16,
66 .zbc_clear_color = gm107_ltc_zbc_clear_color,
67 .zbc_clear_depth = gm107_ltc_zbc_clear_depth,
68 .invalidate = gf100_ltc_invalidate,
69 .flush = gf100_ltc_flush,
70 };
71
72 int
gp100_ltc_new(struct nvkm_device * device,enum nvkm_subdev_type type,int inst,struct nvkm_ltc ** pltc)73 gp100_ltc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
74 struct nvkm_ltc **pltc)
75 {
76 return nvkm_ltc_new_(&gp100_ltc, device, type, inst, pltc);
77 }
78