1 /* $NetBSD: nouveau_nvkm_subdev_ltc_gp100.c,v 1.2 2021/12/18 23:45:40 riastradh Exp $ */
2
3 /*
4 * Copyright 2016 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Ben Skeggs
25 */
26 #include <sys/cdefs.h>
27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_ltc_gp100.c,v 1.2 2021/12/18 23:45:40 riastradh Exp $");
28
29 #include "priv.h"
30
31 void
gp100_ltc_intr(struct nvkm_ltc * ltc)32 gp100_ltc_intr(struct nvkm_ltc *ltc)
33 {
34 struct nvkm_device *device = ltc->subdev.device;
35 u32 mask;
36
37 mask = nvkm_rd32(device, 0x0001c0);
38 while (mask) {
39 u32 s, c = __ffs(mask);
40 for (s = 0; s < ltc->lts_nr; s++)
41 gm107_ltc_intr_lts(ltc, c, s);
42 mask &= ~(1 << c);
43 }
44 }
45
46 int
gp100_ltc_oneinit(struct nvkm_ltc * ltc)47 gp100_ltc_oneinit(struct nvkm_ltc *ltc)
48 {
49 struct nvkm_device *device = ltc->subdev.device;
50 ltc->ltc_nr = nvkm_rd32(device, 0x12006c);
51 ltc->lts_nr = nvkm_rd32(device, 0x17e280) >> 28;
52 /*XXX: tagram allocation - TBD */
53 return 0;
54 }
55
56 void
gp100_ltc_init(struct nvkm_ltc * ltc)57 gp100_ltc_init(struct nvkm_ltc *ltc)
58 {
59 /*XXX: PMU LS call to setup tagram address */
60 }
61
62 static const struct nvkm_ltc_func
63 gp100_ltc = {
64 .oneinit = gp100_ltc_oneinit,
65 .init = gp100_ltc_init,
66 .intr = gp100_ltc_intr,
67 .cbc_clear = gm107_ltc_cbc_clear,
68 .cbc_wait = gm107_ltc_cbc_wait,
69 .zbc = 16,
70 .zbc_clear_color = gm107_ltc_zbc_clear_color,
71 .zbc_clear_depth = gm107_ltc_zbc_clear_depth,
72 .invalidate = gf100_ltc_invalidate,
73 .flush = gf100_ltc_flush,
74 };
75
76 int
gp100_ltc_new(struct nvkm_device * device,int index,struct nvkm_ltc ** pltc)77 gp100_ltc_new(struct nvkm_device *device, int index, struct nvkm_ltc **pltc)
78 {
79 return nvkm_ltc_new_(&gp100_ltc, device, index, pltc);
80 }
81