1 /*
2 * Copyright (C) 2008 Maarten Maathuis.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 */
26
27 #include "drmP.h"
28 #include "drm_mode.h"
29
30 #define NOUVEAU_DMA_DEBUG (nouveau_reg_debug & NOUVEAU_REG_DEBUG_EVO)
31 #include "nouveau_reg.h"
32 #include "nouveau_drv.h"
33 #include "nouveau_crtc.h"
34 #include "nv50_display.h"
35
36 static void
nv50_cursor_show(struct nouveau_crtc * nv_crtc,bool update)37 nv50_cursor_show(struct nouveau_crtc *nv_crtc, bool update)
38 {
39 struct drm_device *dev = nv_crtc->base.dev;
40 struct drm_nouveau_private *dev_priv = dev->dev_private;
41 struct nouveau_channel *evo = nv50_display(dev)->master;
42 int ret;
43
44 NV_DEBUG_KMS(dev, "\n");
45
46 if (update && nv_crtc->cursor.visible)
47 return;
48
49 ret = RING_SPACE(evo, (dev_priv->chipset != 0x50 ? 5 : 3) + update * 2);
50 if (ret) {
51 NV_ERROR(dev, "no space while unhiding cursor\n");
52 return;
53 }
54
55 if (dev_priv->chipset != 0x50) {
56 BEGIN_RING(evo, 0, NV84_EVO_CRTC(nv_crtc->index, CURSOR_DMA), 1);
57 OUT_RING(evo, NvEvoVRAM);
58 }
59 BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, CURSOR_CTRL), 2);
60 OUT_RING(evo, NV50_EVO_CRTC_CURSOR_CTRL_SHOW);
61 OUT_RING(evo, nv_crtc->cursor.offset >> 8);
62
63 if (update) {
64 BEGIN_RING(evo, 0, NV50_EVO_UPDATE, 1);
65 OUT_RING(evo, 0);
66 FIRE_RING(evo);
67 nv_crtc->cursor.visible = true;
68 }
69 }
70
71 static void
nv50_cursor_hide(struct nouveau_crtc * nv_crtc,bool update)72 nv50_cursor_hide(struct nouveau_crtc *nv_crtc, bool update)
73 {
74 struct drm_device *dev = nv_crtc->base.dev;
75 struct drm_nouveau_private *dev_priv = dev->dev_private;
76 struct nouveau_channel *evo = nv50_display(dev)->master;
77 int ret;
78
79 NV_DEBUG_KMS(dev, "\n");
80
81 if (update && !nv_crtc->cursor.visible)
82 return;
83
84 ret = RING_SPACE(evo, (dev_priv->chipset != 0x50 ? 5 : 3) + update * 2);
85 if (ret) {
86 NV_ERROR(dev, "no space while hiding cursor\n");
87 return;
88 }
89 BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, CURSOR_CTRL), 2);
90 OUT_RING(evo, NV50_EVO_CRTC_CURSOR_CTRL_HIDE);
91 OUT_RING(evo, 0);
92 if (dev_priv->chipset != 0x50) {
93 BEGIN_RING(evo, 0, NV84_EVO_CRTC(nv_crtc->index, CURSOR_DMA), 1);
94 OUT_RING(evo, NV84_EVO_CRTC_CURSOR_DMA_HANDLE_NONE);
95 }
96
97 if (update) {
98 BEGIN_RING(evo, 0, NV50_EVO_UPDATE, 1);
99 OUT_RING(evo, 0);
100 FIRE_RING(evo);
101 nv_crtc->cursor.visible = false;
102 }
103 }
104
105 static void
nv50_cursor_set_pos(struct nouveau_crtc * nv_crtc,int x,int y)106 nv50_cursor_set_pos(struct nouveau_crtc *nv_crtc, int x, int y)
107 {
108 struct drm_device *dev = nv_crtc->base.dev;
109
110 nv_crtc->cursor_saved_x = x; nv_crtc->cursor_saved_y = y;
111 nv_wr32(dev, NV50_PDISPLAY_CURSOR_USER_POS(nv_crtc->index),
112 ((y & 0xFFFF) << 16) | (x & 0xFFFF));
113 /* Needed to make the cursor move. */
114 nv_wr32(dev, NV50_PDISPLAY_CURSOR_USER_POS_CTRL(nv_crtc->index), 0);
115 }
116
117 static void
nv50_cursor_set_offset(struct nouveau_crtc * nv_crtc,uint32_t offset)118 nv50_cursor_set_offset(struct nouveau_crtc *nv_crtc, uint32_t offset)
119 {
120 NV_DEBUG_KMS(nv_crtc->base.dev, "\n");
121 if (offset == nv_crtc->cursor.offset)
122 return;
123
124 nv_crtc->cursor.offset = offset;
125 if (nv_crtc->cursor.visible) {
126 nv_crtc->cursor.visible = false;
127 nv_crtc->cursor.show(nv_crtc, true);
128 }
129 }
130
131 int
nv50_cursor_init(struct nouveau_crtc * nv_crtc)132 nv50_cursor_init(struct nouveau_crtc *nv_crtc)
133 {
134 nv_crtc->cursor.set_offset = nv50_cursor_set_offset;
135 nv_crtc->cursor.set_pos = nv50_cursor_set_pos;
136 nv_crtc->cursor.hide = nv50_cursor_hide;
137 nv_crtc->cursor.show = nv50_cursor_show;
138 return 0;
139 }
140