1 /* $NetBSD: nouveau_dispnv50_curs507a.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_curs507a.c,v 1.2 2021/12/18 23:45:32 riastradh Exp $");
26
27 #include "curs.h"
28 #include "core.h"
29 #include "head.h"
30
31 #include <nvif/cl507a.h>
32
33 #include <drm/drm_atomic_helper.h>
34 #include <drm/drm_plane_helper.h>
35
36 static void
curs507a_update(struct nv50_wndw * wndw,u32 * interlock)37 curs507a_update(struct nv50_wndw *wndw, u32 *interlock)
38 {
39 nvif_wr32(&wndw->wimm.base.user, 0x0080, 0x00000000);
40 }
41
42 static void
curs507a_point(struct nv50_wndw * wndw,struct nv50_wndw_atom * asyw)43 curs507a_point(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
44 {
45 nvif_wr32(&wndw->wimm.base.user, 0x0084, asyw->point.y << 16 |
46 asyw->point.x);
47 }
48
49 const struct nv50_wimm_func
50 curs507a = {
51 .point = curs507a_point,
52 .update = curs507a_update,
53 };
54
55 static void
curs507a_prepare(struct nv50_wndw * wndw,struct nv50_head_atom * asyh,struct nv50_wndw_atom * asyw)56 curs507a_prepare(struct nv50_wndw *wndw, struct nv50_head_atom *asyh,
57 struct nv50_wndw_atom *asyw)
58 {
59 u32 handle = nv50_disp(wndw->plane.dev)->core->chan.vram.handle;
60 u32 offset = asyw->image.offset[0];
61 if (asyh->curs.handle != handle || asyh->curs.offset != offset) {
62 asyh->curs.handle = handle;
63 asyh->curs.offset = offset;
64 asyh->set.curs = asyh->curs.visible;
65 }
66 }
67
68 static void
curs507a_release(struct nv50_wndw * wndw,struct nv50_wndw_atom * asyw,struct nv50_head_atom * asyh)69 curs507a_release(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw,
70 struct nv50_head_atom *asyh)
71 {
72 asyh->curs.visible = false;
73 }
74
75 static int
curs507a_acquire(struct nv50_wndw * wndw,struct nv50_wndw_atom * asyw,struct nv50_head_atom * asyh)76 curs507a_acquire(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw,
77 struct nv50_head_atom *asyh)
78 {
79 struct nv50_head *head = nv50_head(asyw->state.crtc);
80 int ret;
81
82 ret = drm_atomic_helper_check_plane_state(&asyw->state, &asyh->state,
83 DRM_PLANE_HELPER_NO_SCALING,
84 DRM_PLANE_HELPER_NO_SCALING,
85 true, true);
86 asyh->curs.visible = asyw->state.visible;
87 if (ret || !asyh->curs.visible)
88 return ret;
89
90 if (asyw->image.w != asyw->image.h)
91 return -EINVAL;
92
93 ret = head->func->curs_layout(head, asyw, asyh);
94 if (ret)
95 return ret;
96
97 return head->func->curs_format(head, asyw, asyh);
98 }
99
100 static const u32
101 curs507a_format[] = {
102 DRM_FORMAT_ARGB8888,
103 0
104 };
105
106 static const struct nv50_wndw_func
107 curs507a_wndw = {
108 .acquire = curs507a_acquire,
109 .release = curs507a_release,
110 .prepare = curs507a_prepare,
111 };
112
113 int
curs507a_new_(const struct nv50_wimm_func * func,struct nouveau_drm * drm,int head,s32 oclass,u32 interlock_data,struct nv50_wndw ** pwndw)114 curs507a_new_(const struct nv50_wimm_func *func, struct nouveau_drm *drm,
115 int head, s32 oclass, u32 interlock_data,
116 struct nv50_wndw **pwndw)
117 {
118 struct nv50_disp_cursor_v0 args = {
119 .head = head,
120 };
121 struct nv50_disp *disp = nv50_disp(drm->dev);
122 struct nv50_wndw *wndw;
123 int ret;
124
125 ret = nv50_wndw_new_(&curs507a_wndw, drm->dev, DRM_PLANE_TYPE_CURSOR,
126 "curs", head, curs507a_format, BIT(head),
127 NV50_DISP_INTERLOCK_CURS, interlock_data, &wndw);
128 if (*pwndw = wndw, ret)
129 return ret;
130
131 ret = nvif_object_init(&disp->disp->object, 0, oclass, &args,
132 sizeof(args), &wndw->wimm.base.user);
133 if (ret) {
134 NV_ERROR(drm, "curs%04x allocation failed: %d\n", oclass, ret);
135 return ret;
136 }
137
138 nvif_object_map(&wndw->wimm.base.user, NULL, 0);
139 wndw->immd = func;
140 wndw->ctxdma.parent = NULL;
141 return 0;
142 }
143
144 int
curs507a_new(struct nouveau_drm * drm,int head,s32 oclass,struct nv50_wndw ** pwndw)145 curs507a_new(struct nouveau_drm *drm, int head, s32 oclass,
146 struct nv50_wndw **pwndw)
147 {
148 return curs507a_new_(&curs507a, drm, head, oclass,
149 0x00000001 << (head * 8), pwndw);
150 }
151