1 /* $NetBSD: nouveau_nvkm_subdev_ltc_gp10b.c,v 1.3 2021/12/19 10:51:58 riastradh Exp $ */
2
3 /*
4 * Copyright (c) 2019 NVIDIA Corporation.
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: Thierry Reding
25 */
26
27 #include <sys/cdefs.h>
28 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_ltc_gp10b.c,v 1.3 2021/12/19 10:51:58 riastradh Exp $");
29
30 #include "priv.h"
31
32 static void
gp10b_ltc_init(struct nvkm_ltc * ltc)33 gp10b_ltc_init(struct nvkm_ltc *ltc)
34 {
35 struct nvkm_device *device = ltc->subdev.device;
36 struct iommu_fwspec *spec;
37
38 nvkm_wr32(device, 0x17e27c, ltc->ltc_nr);
39 nvkm_wr32(device, 0x17e000, ltc->ltc_nr);
40 nvkm_wr32(device, 0x100800, ltc->ltc_nr);
41
42 #ifdef __NetBSD__ /* XXX arm64 iort smmu iommu */
43 __USE(spec);
44 #else
45 spec = dev_iommu_fwspec_get(device->dev);
46 if (spec) {
47 u32 sid = spec->ids[0] & 0xffff;
48
49 /* stream ID */
50 nvkm_wr32(device, 0x160000, sid << 2);
51 }
52 #endif
53 }
54
55 static const struct nvkm_ltc_func
56 gp10b_ltc = {
57 .oneinit = gp100_ltc_oneinit,
58 .init = gp10b_ltc_init,
59 .intr = gp100_ltc_intr,
60 .cbc_clear = gm107_ltc_cbc_clear,
61 .cbc_wait = gm107_ltc_cbc_wait,
62 .zbc = 16,
63 .zbc_clear_color = gm107_ltc_zbc_clear_color,
64 .zbc_clear_depth = gm107_ltc_zbc_clear_depth,
65 .zbc_clear_stencil = gp102_ltc_zbc_clear_stencil,
66 .invalidate = gf100_ltc_invalidate,
67 .flush = gf100_ltc_flush,
68 };
69
70 int
gp10b_ltc_new(struct nvkm_device * device,int index,struct nvkm_ltc ** pltc)71 gp10b_ltc_new(struct nvkm_device *device, int index, struct nvkm_ltc **pltc)
72 {
73 return nvkm_ltc_new_(&gp10b_ltc, device, index, pltc);
74 }
75