1 /* $NetBSD: nouveau_dispnv50_core507d.c,v 1.2 2021/12/18 23:45:32 riastradh Exp $ */
2
3 /*
4 * Copyright 2018 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 #include <sys/cdefs.h>
25 __KERNEL_RCSID(0, "$NetBSD: nouveau_dispnv50_core507d.c,v 1.2 2021/12/18 23:45:32 riastradh Exp $");
26
27 #include "core.h"
28 #include "head.h"
29
30 #include <nvif/cl507d.h>
31
32 #include "nouveau_bo.h"
33
34 void
core507d_update(struct nv50_core * core,u32 * interlock,bool ntfy)35 core507d_update(struct nv50_core *core, u32 *interlock, bool ntfy)
36 {
37 u32 *push;
38 if ((push = evo_wait(&core->chan, 5))) {
39 if (ntfy) {
40 evo_mthd(push, 0x0084, 1);
41 evo_data(push, 0x80000000 | NV50_DISP_CORE_NTFY);
42 }
43 evo_mthd(push, 0x0080, 2);
44 evo_data(push, interlock[NV50_DISP_INTERLOCK_BASE] |
45 interlock[NV50_DISP_INTERLOCK_OVLY]);
46 evo_data(push, 0x00000000);
47 evo_kick(push, &core->chan);
48 }
49 }
50
51 int
core507d_ntfy_wait_done(struct nouveau_bo * bo,u32 offset,struct nvif_device * device)52 core507d_ntfy_wait_done(struct nouveau_bo *bo, u32 offset,
53 struct nvif_device *device)
54 {
55 s64 time = nvif_msec(device, 2000ULL,
56 if (nouveau_bo_rd32(bo, offset / 4))
57 break;
58 usleep_range(1, 2);
59 );
60 return time < 0 ? time : 0;
61 }
62
63 void
core507d_ntfy_init(struct nouveau_bo * bo,u32 offset)64 core507d_ntfy_init(struct nouveau_bo *bo, u32 offset)
65 {
66 nouveau_bo_wr32(bo, offset / 4, 0x00000000);
67 }
68
69 void
core507d_init(struct nv50_core * core)70 core507d_init(struct nv50_core *core)
71 {
72 u32 *push;
73 if ((push = evo_wait(&core->chan, 2))) {
74 evo_mthd(push, 0x0088, 1);
75 evo_data(push, core->chan.sync.handle);
76 evo_kick(push, &core->chan);
77 }
78 }
79
80 static const struct nv50_core_func
81 core507d = {
82 .init = core507d_init,
83 .ntfy_init = core507d_ntfy_init,
84 .ntfy_wait_done = core507d_ntfy_wait_done,
85 .update = core507d_update,
86 .head = &head507d,
87 .dac = &dac507d,
88 .sor = &sor507d,
89 .pior = &pior507d,
90 };
91
92 int
core507d_new_(const struct nv50_core_func * func,struct nouveau_drm * drm,s32 oclass,struct nv50_core ** pcore)93 core507d_new_(const struct nv50_core_func *func, struct nouveau_drm *drm,
94 s32 oclass, struct nv50_core **pcore)
95 {
96 struct nv50_disp_core_channel_dma_v0 args = {};
97 struct nv50_disp *disp = nv50_disp(drm->dev);
98 struct nv50_core *core;
99 int ret;
100
101 if (!(core = *pcore = kzalloc(sizeof(*core), GFP_KERNEL)))
102 return -ENOMEM;
103 core->func = func;
104
105 ret = nv50_dmac_create(&drm->client.device, &disp->disp->object,
106 &oclass, 0, &args, sizeof(args),
107 disp->sync->bo.offset, &core->chan);
108 if (ret) {
109 NV_ERROR(drm, "core%04x allocation failed: %d\n", oclass, ret);
110 return ret;
111 }
112
113 return 0;
114 }
115
116 int
core507d_new(struct nouveau_drm * drm,s32 oclass,struct nv50_core ** pcore)117 core507d_new(struct nouveau_drm *drm, s32 oclass, struct nv50_core **pcore)
118 {
119 return core507d_new_(&core507d, drm, oclass, pcore);
120 }
121