drm/nouveau/gr/gf100-: insert some WFIs during gr init
[sfrench/cifs-2.6.git] / drivers / gpu / drm / nouveau / dispnv50 / curs507a.c
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/cl507a.h>
27
28 #include <drm/drm_atomic_helper.h>
29 #include <drm/drm_plane_helper.h>
30
31 static void
32 curs507a_update(struct nv50_wndw *wndw, u32 *interlock)
33 {
34         nvif_wr32(&wndw->wimm.base.user, 0x0080, 0x00000000);
35 }
36
37 static void
38 curs507a_point(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
39 {
40         nvif_wr32(&wndw->wimm.base.user, 0x0084, asyw->point.y << 16 |
41                                                  asyw->point.x);
42 }
43
44 const struct nv50_wimm_func
45 curs507a = {
46         .point = curs507a_point,
47         .update = curs507a_update,
48 };
49
50 static void
51 curs507a_prepare(struct nv50_wndw *wndw, struct nv50_head_atom *asyh,
52                  struct nv50_wndw_atom *asyw)
53 {
54         u32 handle = nv50_disp(wndw->plane.dev)->core->chan.vram.handle;
55         u32 offset = asyw->image.offset[0];
56         if (asyh->curs.handle != handle || asyh->curs.offset != offset) {
57                 asyh->curs.handle = handle;
58                 asyh->curs.offset = offset;
59                 asyh->set.curs = asyh->curs.visible;
60         }
61 }
62
63 static void
64 curs507a_release(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw,
65                  struct nv50_head_atom *asyh)
66 {
67         asyh->curs.visible = false;
68 }
69
70 static int
71 curs507a_acquire(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw,
72                  struct nv50_head_atom *asyh)
73 {
74         struct nv50_head *head = nv50_head(asyw->state.crtc);
75         int ret;
76
77         ret = drm_atomic_helper_check_plane_state(&asyw->state, &asyh->state,
78                                                   DRM_PLANE_HELPER_NO_SCALING,
79                                                   DRM_PLANE_HELPER_NO_SCALING,
80                                                   true, true);
81         asyh->curs.visible = asyw->state.visible;
82         if (ret || !asyh->curs.visible)
83                 return ret;
84
85         if (asyw->image.w != asyw->image.h)
86                 return -EINVAL;
87
88         ret = head->func->curs_layout(head, asyw, asyh);
89         if (ret)
90                 return ret;
91
92         return head->func->curs_format(head, asyw, asyh);
93 }
94
95 static const u32
96 curs507a_format[] = {
97         DRM_FORMAT_ARGB8888,
98         0
99 };
100
101 static const struct nv50_wndw_func
102 curs507a_wndw = {
103         .acquire = curs507a_acquire,
104         .release = curs507a_release,
105         .prepare = curs507a_prepare,
106 };
107
108 int
109 curs507a_new_(const struct nv50_wimm_func *func, struct nouveau_drm *drm,
110               int head, s32 oclass, u32 interlock_data,
111               struct nv50_wndw **pwndw)
112 {
113         struct nv50_disp_cursor_v0 args = {
114                 .head = head,
115         };
116         struct nv50_disp *disp = nv50_disp(drm->dev);
117         struct nv50_wndw *wndw;
118         int ret;
119
120         ret = nv50_wndw_new_(&curs507a_wndw, drm->dev, DRM_PLANE_TYPE_CURSOR,
121                              "curs", head, curs507a_format, BIT(head),
122                              NV50_DISP_INTERLOCK_CURS, interlock_data, &wndw);
123         if (*pwndw = wndw, ret)
124                 return ret;
125
126         ret = nvif_object_init(&disp->disp->object, 0, oclass, &args,
127                                sizeof(args), &wndw->wimm.base.user);
128         if (ret) {
129                 NV_ERROR(drm, "curs%04x allocation failed: %d\n", oclass, ret);
130                 return ret;
131         }
132
133         nvif_object_map(&wndw->wimm.base.user, NULL, 0);
134         wndw->immd = func;
135         wndw->ctxdma.parent = &disp->core->chan.base.user;
136         return 0;
137 }
138
139 int
140 curs507a_new(struct nouveau_drm *drm, int head, s32 oclass,
141              struct nv50_wndw **pwndw)
142 {
143         return curs507a_new_(&curs507a, drm, head, oclass,
144                              0x00000001 << (head * 8), pwndw);
145 }