1 /*
2 * Copyright 2018 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 #include "curs.h"
23 #include "core.h"
24 #include "head.h"
25
26 #include <nvif/if0014.h>
27 #include <nvif/timer.h>
28
29 #include <nvhw/class/cl507a.h>
30
31 #include <drm/drm_atomic_helper.h>
32 #include <drm/drm_fourcc.h>
33
34 bool
curs507a_space(struct nv50_wndw * wndw)35 curs507a_space(struct nv50_wndw *wndw)
36 {
37 nvif_msec(&nouveau_drm(wndw->plane.dev)->client.device, 100,
38 if (NVIF_TV32(&wndw->wimm.base.user, NV507A, FREE, COUNT, >=, 4))
39 return true;
40 );
41
42 WARN_ON(1);
43 return false;
44 }
45
46 static int
curs507a_update(struct nv50_wndw * wndw,u32 * interlock)47 curs507a_update(struct nv50_wndw *wndw, u32 *interlock)
48 {
49 struct nvif_object *user = &wndw->wimm.base.user;
50 int ret = nvif_chan_wait(&wndw->wimm, 1);
51 if (ret == 0) {
52 NVIF_WR32(user, NV507A, UPDATE,
53 NVDEF(NV507A, UPDATE, INTERLOCK_WITH_CORE, DISABLE));
54 }
55 return ret;
56 }
57
58 static int
curs507a_point(struct nv50_wndw * wndw,struct nv50_wndw_atom * asyw)59 curs507a_point(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
60 {
61 struct nvif_object *user = &wndw->wimm.base.user;
62 int ret = nvif_chan_wait(&wndw->wimm, 1);
63 if (ret == 0) {
64 NVIF_WR32(user, NV507A, SET_CURSOR_HOT_SPOT_POINT_OUT,
65 NVVAL(NV507A, SET_CURSOR_HOT_SPOT_POINT_OUT, X, asyw->point.x) |
66 NVVAL(NV507A, SET_CURSOR_HOT_SPOT_POINT_OUT, Y, asyw->point.y));
67 }
68 return ret;
69 }
70
71 const struct nv50_wimm_func
72 curs507a = {
73 .point = curs507a_point,
74 .update = curs507a_update,
75 };
76
77 static void
curs507a_prepare(struct nv50_wndw * wndw,struct nv50_head_atom * asyh,struct nv50_wndw_atom * asyw)78 curs507a_prepare(struct nv50_wndw *wndw, struct nv50_head_atom *asyh,
79 struct nv50_wndw_atom *asyw)
80 {
81 u32 handle = nv50_disp(wndw->plane.dev)->core->chan.vram.handle;
82 u32 offset = asyw->image.offset[0];
83 if (asyh->curs.handle != handle || asyh->curs.offset != offset) {
84 asyh->curs.handle = handle;
85 asyh->curs.offset = offset;
86 asyh->set.curs = asyh->curs.visible;
87 nv50_atom(asyh->state.state)->lock_core = true;
88 }
89 }
90
91 static void
curs507a_release(struct nv50_wndw * wndw,struct nv50_wndw_atom * asyw,struct nv50_head_atom * asyh)92 curs507a_release(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw,
93 struct nv50_head_atom *asyh)
94 {
95 asyh->curs.visible = false;
96 }
97
98 static int
curs507a_acquire(struct nv50_wndw * wndw,struct nv50_wndw_atom * asyw,struct nv50_head_atom * asyh)99 curs507a_acquire(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw,
100 struct nv50_head_atom *asyh)
101 {
102 struct nouveau_drm *drm = nouveau_drm(wndw->plane.dev);
103 struct nv50_head *head = nv50_head(asyw->state.crtc);
104 struct drm_framebuffer *fb = asyw->state.fb;
105 int ret;
106
107 ret = drm_atomic_helper_check_plane_state(&asyw->state, &asyh->state,
108 DRM_PLANE_NO_SCALING,
109 DRM_PLANE_NO_SCALING,
110 true, true);
111 asyh->curs.visible = asyw->state.visible;
112 if (ret || !asyh->curs.visible)
113 return ret;
114
115 if (asyw->state.crtc_w != asyw->state.crtc_h) {
116 NV_ATOMIC(drm, "Plane width/height must be equal for cursors\n");
117 return -EINVAL;
118 }
119
120 if (asyw->image.w != asyw->state.crtc_w) {
121 NV_ATOMIC(drm, "Plane width must be equal to fb width for cursors (height can be larger though)\n");
122 return -EINVAL;
123 }
124
125 if (asyw->state.src_x || asyw->state.src_y) {
126 NV_ATOMIC(drm, "Cursor planes do not support framebuffer offsets\n");
127 return -EINVAL;
128 }
129
130 if (asyw->image.pitch[0] != asyw->image.w * fb->format->cpp[0]) {
131 NV_ATOMIC(drm,
132 "%s: invalid cursor image pitch: image must be packed (pitch = %d, width = %d)\n",
133 wndw->plane.name, asyw->image.pitch[0], asyw->image.w);
134 return -EINVAL;
135 }
136
137 ret = head->func->curs_layout(head, asyw, asyh);
138 if (ret) {
139 NV_ATOMIC(drm,
140 "%s: invalid cursor image size: unsupported size %dx%d\n",
141 wndw->plane.name, asyw->image.w, asyw->image.h);
142 return ret;
143 }
144
145 ret = head->func->curs_format(head, asyw, asyh);
146 if (ret) {
147 NV_ATOMIC(drm,
148 "%s: invalid cursor image format 0x%X\n",
149 wndw->plane.name, fb->format->format);
150 return ret;
151 }
152
153 return 0;
154 }
155
156 static const u32
157 curs507a_format[] = {
158 DRM_FORMAT_ARGB8888,
159 0
160 };
161
162 static const struct nv50_wndw_func
163 curs507a_wndw = {
164 .acquire = curs507a_acquire,
165 .release = curs507a_release,
166 .prepare = curs507a_prepare,
167 };
168
169 int
curs507a_new_(const struct nv50_wimm_func * func,struct nouveau_drm * drm,int head,s32 oclass,u32 interlock_data,struct nv50_wndw ** pwndw)170 curs507a_new_(const struct nv50_wimm_func *func, struct nouveau_drm *drm,
171 int head, s32 oclass, u32 interlock_data,
172 struct nv50_wndw **pwndw)
173 {
174 struct nvif_disp_chan_v0 args = {
175 .id = head,
176 };
177 struct nv50_disp *disp = nv50_disp(drm->dev);
178 struct nv50_wndw *wndw;
179 int ret;
180
181 ret = nv50_wndw_new_(&curs507a_wndw, drm->dev, DRM_PLANE_TYPE_CURSOR,
182 "curs", head, curs507a_format, BIT(head),
183 NV50_DISP_INTERLOCK_CURS, interlock_data, &wndw);
184 if (*pwndw = wndw, ret)
185 return ret;
186
187 ret = nvif_object_ctor(&disp->disp->object, "kmsCurs", 0, oclass,
188 &args, sizeof(args), &wndw->wimm.base.user);
189 if (ret) {
190 NV_ERROR(drm, "curs%04x allocation failed: %d\n", oclass, ret);
191 return ret;
192 }
193
194 nvif_object_map(&wndw->wimm.base.user, NULL, 0);
195 wndw->immd = func;
196 wndw->ctxdma.parent = NULL;
197 return 0;
198 }
199
200 int
curs507a_new(struct nouveau_drm * drm,int head,s32 oclass,struct nv50_wndw ** pwndw)201 curs507a_new(struct nouveau_drm *drm, int head, s32 oclass,
202 struct nv50_wndw **pwndw)
203 {
204 return curs507a_new_(&curs507a, drm, head, oclass,
205 0x00000001 << (head * 8), pwndw);
206 }
207