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1123 | serge | 1 | /* |
2 | * Copyright (c) 2006-2008 Intel Corporation |
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3 | * Copyright (c) 2007 Dave Airlie |
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4 | * Copyright (c) 2008 Red Hat Inc. |
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5 | * |
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6 | * DRM core CRTC related functions |
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7 | * |
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8 | * Permission to use, copy, modify, distribute, and sell this software and its |
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9 | * documentation for any purpose is hereby granted without fee, provided that |
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10 | * the above copyright notice appear in all copies and that both that copyright |
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11 | * notice and this permission notice appear in supporting documentation, and |
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12 | * that the name of the copyright holders not be used in advertising or |
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13 | * publicity pertaining to distribution of the software without specific, |
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14 | * written prior permission. The copyright holders make no representations |
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15 | * about the suitability of this software for any purpose. It is provided "as |
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16 | * is" without express or implied warranty. |
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17 | * |
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18 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
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19 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
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20 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
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21 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
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22 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
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23 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
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24 | * OF THIS SOFTWARE. |
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25 | * |
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26 | * Authors: |
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27 | * Keith Packard |
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28 | * Eric Anholt |
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29 | * Dave Airlie |
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30 | * Jesse Barnes |
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31 | */ |
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4075 | Serge | 32 | #include |
1179 | serge | 33 | #include |
1963 | serge | 34 | #include |
3031 | serge | 35 | #include |
36 | #include |
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37 | #include |
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38 | #include |
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39 | #include |
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5060 | serge | 40 | #include |
6084 | serge | 41 | #include |
1123 | serge | 42 | |
5060 | serge | 43 | #include "drm_crtc_internal.h" |
5271 | serge | 44 | #include "drm_internal.h" |
5060 | serge | 45 | |
6084 | serge | 46 | static struct drm_framebuffer * |
47 | internal_framebuffer_create(struct drm_device *dev, |
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48 | struct drm_mode_fb_cmd2 *r, |
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49 | struct drm_file *file_priv); |
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5060 | serge | 50 | |
1123 | serge | 51 | /* Avoid boilerplate. I'm tired of typing. */ |
52 | #define DRM_ENUM_NAME_FN(fnname, list) \ |
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4075 | Serge | 53 | const char *fnname(int val) \ |
1123 | serge | 54 | { \ |
55 | int i; \ |
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56 | for (i = 0; i < ARRAY_SIZE(list); i++) { \ |
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57 | if (list[i].type == val) \ |
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58 | return list[i].name; \ |
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59 | } \ |
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60 | return "(unknown)"; \ |
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61 | } |
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62 | |||
63 | /* |
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64 | * Global properties |
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65 | */ |
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6084 | serge | 66 | static const struct drm_prop_enum_list drm_dpms_enum_list[] = { |
67 | { DRM_MODE_DPMS_ON, "On" }, |
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1123 | serge | 68 | { DRM_MODE_DPMS_STANDBY, "Standby" }, |
69 | { DRM_MODE_DPMS_SUSPEND, "Suspend" }, |
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70 | { DRM_MODE_DPMS_OFF, "Off" } |
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71 | }; |
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72 | |||
73 | DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) |
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74 | |||
6084 | serge | 75 | static const struct drm_prop_enum_list drm_plane_type_enum_list[] = { |
5060 | serge | 76 | { DRM_PLANE_TYPE_OVERLAY, "Overlay" }, |
77 | { DRM_PLANE_TYPE_PRIMARY, "Primary" }, |
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78 | { DRM_PLANE_TYPE_CURSOR, "Cursor" }, |
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79 | }; |
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80 | |||
1123 | serge | 81 | /* |
82 | * Optional properties |
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83 | */ |
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6084 | serge | 84 | static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = { |
1179 | serge | 85 | { DRM_MODE_SCALE_NONE, "None" }, |
86 | { DRM_MODE_SCALE_FULLSCREEN, "Full" }, |
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87 | { DRM_MODE_SCALE_CENTER, "Center" }, |
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88 | { DRM_MODE_SCALE_ASPECT, "Full aspect" }, |
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1123 | serge | 89 | }; |
90 | |||
5060 | serge | 91 | static const struct drm_prop_enum_list drm_aspect_ratio_enum_list[] = { |
92 | { DRM_MODE_PICTURE_ASPECT_NONE, "Automatic" }, |
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93 | { DRM_MODE_PICTURE_ASPECT_4_3, "4:3" }, |
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94 | { DRM_MODE_PICTURE_ASPECT_16_9, "16:9" }, |
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95 | }; |
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96 | |||
1123 | serge | 97 | /* |
98 | * Non-global properties, but "required" for certain connectors. |
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99 | */ |
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6084 | serge | 100 | static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = { |
1123 | serge | 101 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
102 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ |
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103 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ |
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104 | }; |
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105 | |||
106 | DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) |
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107 | |||
6084 | serge | 108 | static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = { |
1123 | serge | 109 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
110 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ |
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111 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ |
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112 | }; |
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113 | |||
114 | DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, |
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115 | drm_dvi_i_subconnector_enum_list) |
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116 | |||
6084 | serge | 117 | static const struct drm_prop_enum_list drm_tv_select_enum_list[] = { |
1123 | serge | 118 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
119 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ |
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120 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ |
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121 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ |
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1179 | serge | 122 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
1123 | serge | 123 | }; |
124 | |||
125 | DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) |
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126 | |||
6084 | serge | 127 | static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = { |
1123 | serge | 128 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
129 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ |
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130 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ |
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131 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ |
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1179 | serge | 132 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
1123 | serge | 133 | }; |
134 | |||
135 | DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, |
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136 | drm_tv_subconnector_enum_list) |
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137 | |||
4075 | Serge | 138 | static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = { |
1321 | serge | 139 | { DRM_MODE_DIRTY_OFF, "Off" }, |
140 | { DRM_MODE_DIRTY_ON, "On" }, |
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141 | { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, |
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142 | }; |
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143 | |||
1123 | serge | 144 | struct drm_conn_prop_enum_list { |
145 | int type; |
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4075 | Serge | 146 | const char *name; |
4104 | Serge | 147 | struct ida ida; |
1123 | serge | 148 | }; |
149 | |||
150 | /* |
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151 | * Connector and encoder types. |
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152 | */ |
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6084 | serge | 153 | static struct drm_conn_prop_enum_list drm_connector_enum_list[] = { |
154 | { DRM_MODE_CONNECTOR_Unknown, "Unknown" }, |
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4104 | Serge | 155 | { DRM_MODE_CONNECTOR_VGA, "VGA" }, |
156 | { DRM_MODE_CONNECTOR_DVII, "DVI-I" }, |
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157 | { DRM_MODE_CONNECTOR_DVID, "DVI-D" }, |
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158 | { DRM_MODE_CONNECTOR_DVIA, "DVI-A" }, |
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159 | { DRM_MODE_CONNECTOR_Composite, "Composite" }, |
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160 | { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" }, |
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161 | { DRM_MODE_CONNECTOR_LVDS, "LVDS" }, |
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162 | { DRM_MODE_CONNECTOR_Component, "Component" }, |
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163 | { DRM_MODE_CONNECTOR_9PinDIN, "DIN" }, |
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164 | { DRM_MODE_CONNECTOR_DisplayPort, "DP" }, |
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165 | { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" }, |
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166 | { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" }, |
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167 | { DRM_MODE_CONNECTOR_TV, "TV" }, |
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168 | { DRM_MODE_CONNECTOR_eDP, "eDP" }, |
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169 | { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" }, |
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4560 | Serge | 170 | { DRM_MODE_CONNECTOR_DSI, "DSI" }, |
1123 | serge | 171 | }; |
172 | |||
6084 | serge | 173 | static const struct drm_prop_enum_list drm_encoder_enum_list[] = { |
174 | { DRM_MODE_ENCODER_NONE, "None" }, |
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1123 | serge | 175 | { DRM_MODE_ENCODER_DAC, "DAC" }, |
176 | { DRM_MODE_ENCODER_TMDS, "TMDS" }, |
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177 | { DRM_MODE_ENCODER_LVDS, "LVDS" }, |
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178 | { DRM_MODE_ENCODER_TVDAC, "TV" }, |
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3031 | serge | 179 | { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, |
4560 | Serge | 180 | { DRM_MODE_ENCODER_DSI, "DSI" }, |
5060 | serge | 181 | { DRM_MODE_ENCODER_DPMST, "DP MST" }, |
1123 | serge | 182 | }; |
183 | |||
6084 | serge | 184 | static const struct drm_prop_enum_list drm_subpixel_enum_list[] = { |
5060 | serge | 185 | { SubPixelUnknown, "Unknown" }, |
186 | { SubPixelHorizontalRGB, "Horizontal RGB" }, |
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187 | { SubPixelHorizontalBGR, "Horizontal BGR" }, |
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188 | { SubPixelVerticalRGB, "Vertical RGB" }, |
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189 | { SubPixelVerticalBGR, "Vertical BGR" }, |
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190 | { SubPixelNone, "None" }, |
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191 | }; |
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192 | |||
4104 | Serge | 193 | void drm_connector_ida_init(void) |
194 | { |
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195 | int i; |
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196 | |||
197 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) |
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198 | ida_init(&drm_connector_enum_list[i].ida); |
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199 | } |
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200 | |||
201 | void drm_connector_ida_destroy(void) |
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202 | { |
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203 | int i; |
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204 | |||
205 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) |
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206 | ida_destroy(&drm_connector_enum_list[i].ida); |
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207 | } |
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208 | |||
5060 | serge | 209 | /** |
210 | * drm_get_connector_status_name - return a string for connector status |
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211 | * @status: connector status to compute name of |
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212 | * |
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213 | * In contrast to the other drm_get_*_name functions this one here returns a |
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214 | * const pointer and hence is threadsafe. |
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215 | */ |
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4075 | Serge | 216 | const char *drm_get_connector_status_name(enum drm_connector_status status) |
1123 | serge | 217 | { |
218 | if (status == connector_status_connected) |
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219 | return "connected"; |
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220 | else if (status == connector_status_disconnected) |
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221 | return "disconnected"; |
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222 | else |
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223 | return "unknown"; |
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224 | } |
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3764 | Serge | 225 | EXPORT_SYMBOL(drm_get_connector_status_name); |
1123 | serge | 226 | |
5060 | serge | 227 | /** |
228 | * drm_get_subpixel_order_name - return a string for a given subpixel enum |
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229 | * @order: enum of subpixel_order |
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230 | * |
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231 | * Note you could abuse this and return something out of bounds, but that |
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232 | * would be a caller error. No unscrubbed user data should make it here. |
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233 | */ |
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234 | const char *drm_get_subpixel_order_name(enum subpixel_order order) |
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235 | { |
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236 | return drm_subpixel_enum_list[order].name; |
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237 | } |
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238 | EXPORT_SYMBOL(drm_get_subpixel_order_name); |
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239 | |||
4075 | Serge | 240 | static char printable_char(int c) |
241 | { |
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242 | return isascii(c) && isprint(c) ? c : '?'; |
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243 | } |
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244 | |||
5060 | serge | 245 | /** |
246 | * drm_get_format_name - return a string for drm fourcc format |
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247 | * @format: format to compute name of |
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248 | * |
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249 | * Note that the buffer used by this function is globally shared and owned by |
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250 | * the function itself. |
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251 | * |
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252 | * FIXME: This isn't really multithreading safe. |
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253 | */ |
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4075 | Serge | 254 | const char *drm_get_format_name(uint32_t format) |
255 | { |
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256 | static char buf[32]; |
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257 | |||
258 | snprintf(buf, sizeof(buf), |
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259 | "%c%c%c%c %s-endian (0x%08x)", |
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260 | printable_char(format & 0xff), |
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261 | printable_char((format >> 8) & 0xff), |
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262 | printable_char((format >> 16) & 0xff), |
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263 | printable_char((format >> 24) & 0x7f), |
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264 | format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little", |
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265 | format); |
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266 | |||
267 | return buf; |
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268 | } |
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269 | EXPORT_SYMBOL(drm_get_format_name); |
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270 | |||
5060 | serge | 271 | /* |
272 | * Internal function to assign a slot in the object idr and optionally |
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273 | * register the object into the idr. |
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1123 | serge | 274 | */ |
5060 | serge | 275 | static int drm_mode_object_get_reg(struct drm_device *dev, |
276 | struct drm_mode_object *obj, |
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277 | uint32_t obj_type, |
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278 | bool register_obj) |
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1123 | serge | 279 | { |
280 | int ret; |
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281 | |||
3480 | Serge | 282 | mutex_lock(&dev->mode_config.idr_mutex); |
5060 | serge | 283 | ret = idr_alloc(&dev->mode_config.crtc_idr, register_obj ? obj : NULL, 1, 0, GFP_KERNEL); |
3480 | Serge | 284 | if (ret >= 0) { |
285 | /* |
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286 | * Set up the object linking under the protection of the idr |
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287 | * lock so that other users can't see inconsistent state. |
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288 | */ |
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289 | obj->id = ret; |
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290 | obj->type = obj_type; |
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1123 | serge | 291 | } |
1179 | serge | 292 | mutex_unlock(&dev->mode_config.idr_mutex); |
1123 | serge | 293 | |
3480 | Serge | 294 | return ret < 0 ? ret : 0; |
1123 | serge | 295 | } |
296 | |||
297 | /** |
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5060 | serge | 298 | * drm_mode_object_get - allocate a new modeset identifier |
299 | * @dev: DRM device |
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300 | * @obj: object pointer, used to generate unique ID |
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301 | * @obj_type: object type |
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302 | * |
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303 | * Create a unique identifier based on @ptr in @dev's identifier space. Used |
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304 | * for tracking modes, CRTCs and connectors. Note that despite the _get postfix |
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305 | * modeset identifiers are _not_ reference counted. Hence don't use this for |
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306 | * reference counted modeset objects like framebuffers. |
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307 | * |
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308 | * Returns: |
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6084 | serge | 309 | * Zero on success, error code on failure. |
5060 | serge | 310 | */ |
311 | int drm_mode_object_get(struct drm_device *dev, |
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6084 | serge | 312 | struct drm_mode_object *obj, uint32_t obj_type) |
5060 | serge | 313 | { |
314 | return drm_mode_object_get_reg(dev, obj, obj_type, true); |
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315 | } |
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316 | |||
317 | static void drm_mode_object_register(struct drm_device *dev, |
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318 | struct drm_mode_object *obj) |
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319 | { |
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320 | mutex_lock(&dev->mode_config.idr_mutex); |
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321 | idr_replace(&dev->mode_config.crtc_idr, obj, obj->id); |
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322 | mutex_unlock(&dev->mode_config.idr_mutex); |
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323 | } |
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324 | |||
325 | /** |
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3480 | Serge | 326 | * drm_mode_object_put - free a modeset identifer |
1123 | serge | 327 | * @dev: DRM device |
3480 | Serge | 328 | * @object: object to free |
1123 | serge | 329 | * |
5060 | serge | 330 | * Free @id from @dev's unique identifier pool. Note that despite the _get |
331 | * postfix modeset identifiers are _not_ reference counted. Hence don't use this |
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332 | * for reference counted modeset objects like framebuffers. |
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1123 | serge | 333 | */ |
5060 | serge | 334 | void drm_mode_object_put(struct drm_device *dev, |
6084 | serge | 335 | struct drm_mode_object *object) |
1123 | serge | 336 | { |
1179 | serge | 337 | mutex_lock(&dev->mode_config.idr_mutex); |
1123 | serge | 338 | idr_remove(&dev->mode_config.crtc_idr, object->id); |
1179 | serge | 339 | mutex_unlock(&dev->mode_config.idr_mutex); |
1123 | serge | 340 | } |
341 | |||
5060 | serge | 342 | static struct drm_mode_object *_object_find(struct drm_device *dev, |
343 | uint32_t id, uint32_t type) |
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344 | { |
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345 | struct drm_mode_object *obj = NULL; |
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346 | |||
347 | mutex_lock(&dev->mode_config.idr_mutex); |
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348 | obj = idr_find(&dev->mode_config.crtc_idr, id); |
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349 | if (obj && type != DRM_MODE_OBJECT_ANY && obj->type != type) |
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350 | obj = NULL; |
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351 | if (obj && obj->id != id) |
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352 | obj = NULL; |
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353 | /* don't leak out unref'd fb's */ |
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6084 | serge | 354 | if (obj && |
355 | (obj->type == DRM_MODE_OBJECT_FB || |
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356 | obj->type == DRM_MODE_OBJECT_BLOB)) |
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5060 | serge | 357 | obj = NULL; |
358 | mutex_unlock(&dev->mode_config.idr_mutex); |
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359 | |||
360 | return obj; |
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361 | } |
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362 | |||
3480 | Serge | 363 | /** |
364 | * drm_mode_object_find - look up a drm object with static lifetime |
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365 | * @dev: drm device |
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366 | * @id: id of the mode object |
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367 | * @type: type of the mode object |
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368 | * |
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369 | * Note that framebuffers cannot be looked up with this functions - since those |
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5060 | serge | 370 | * are reference counted, they need special treatment. Even with |
371 | * DRM_MODE_OBJECT_ANY (although that will simply return NULL |
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372 | * rather than WARN_ON()). |
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3480 | Serge | 373 | */ |
1321 | serge | 374 | struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, |
375 | uint32_t id, uint32_t type) |
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1123 | serge | 376 | { |
377 | struct drm_mode_object *obj = NULL; |
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378 | |||
3480 | Serge | 379 | /* Framebuffers are reference counted and need their own lookup |
380 | * function.*/ |
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6084 | serge | 381 | WARN_ON(type == DRM_MODE_OBJECT_FB || type == DRM_MODE_OBJECT_BLOB); |
5060 | serge | 382 | obj = _object_find(dev, id, type); |
1123 | serge | 383 | return obj; |
384 | } |
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385 | EXPORT_SYMBOL(drm_mode_object_find); |
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386 | |||
387 | /** |
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388 | * drm_framebuffer_init - initialize a framebuffer |
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389 | * @dev: DRM device |
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3480 | Serge | 390 | * @fb: framebuffer to be initialized |
391 | * @funcs: ... with these functions |
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1123 | serge | 392 | * |
393 | * Allocates an ID for the framebuffer's parent mode object, sets its mode |
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394 | * functions & device file and adds it to the master fd list. |
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395 | * |
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3480 | Serge | 396 | * IMPORTANT: |
397 | * This functions publishes the fb and makes it available for concurrent access |
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398 | * by other users. Which means by this point the fb _must_ be fully set up - |
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399 | * since all the fb attributes are invariant over its lifetime, no further |
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400 | * locking but only correct reference counting is required. |
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401 | * |
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5060 | serge | 402 | * Returns: |
1321 | serge | 403 | * Zero on success, error code on failure. |
1123 | serge | 404 | */ |
405 | int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, |
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406 | const struct drm_framebuffer_funcs *funcs) |
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407 | { |
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408 | int ret; |
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1963 | serge | 409 | |
3480 | Serge | 410 | mutex_lock(&dev->mode_config.fb_lock); |
411 | kref_init(&fb->refcount); |
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412 | INIT_LIST_HEAD(&fb->filp_head); |
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413 | fb->dev = dev; |
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414 | fb->funcs = funcs; |
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415 | |||
1123 | serge | 416 | ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); |
3031 | serge | 417 | if (ret) |
3480 | Serge | 418 | goto out; |
1123 | serge | 419 | |
420 | dev->mode_config.num_fb++; |
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421 | list_add(&fb->head, &dev->mode_config.fb_list); |
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3480 | Serge | 422 | out: |
423 | mutex_unlock(&dev->mode_config.fb_lock); |
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1123 | serge | 424 | |
6084 | serge | 425 | return ret; |
1123 | serge | 426 | } |
427 | EXPORT_SYMBOL(drm_framebuffer_init); |
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428 | |||
5271 | serge | 429 | /* dev->mode_config.fb_lock must be held! */ |
430 | static void __drm_framebuffer_unregister(struct drm_device *dev, |
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431 | struct drm_framebuffer *fb) |
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432 | { |
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433 | mutex_lock(&dev->mode_config.idr_mutex); |
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434 | idr_remove(&dev->mode_config.crtc_idr, fb->base.id); |
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435 | mutex_unlock(&dev->mode_config.idr_mutex); |
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436 | |||
437 | fb->base.id = 0; |
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438 | } |
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439 | |||
3480 | Serge | 440 | static void drm_framebuffer_free(struct kref *kref) |
441 | { |
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442 | struct drm_framebuffer *fb = |
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443 | container_of(kref, struct drm_framebuffer, refcount); |
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5271 | serge | 444 | struct drm_device *dev = fb->dev; |
445 | |||
446 | /* |
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447 | * The lookup idr holds a weak reference, which has not necessarily been |
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448 | * removed at this point. Check for that. |
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449 | */ |
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450 | mutex_lock(&dev->mode_config.fb_lock); |
||
451 | if (fb->base.id) { |
||
452 | /* Mark fb as reaped and drop idr ref. */ |
||
453 | __drm_framebuffer_unregister(dev, fb); |
||
454 | } |
||
455 | mutex_unlock(&dev->mode_config.fb_lock); |
||
456 | |||
3480 | Serge | 457 | fb->funcs->destroy(fb); |
458 | } |
||
459 | |||
460 | static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev, |
||
461 | uint32_t id) |
||
462 | { |
||
463 | struct drm_mode_object *obj = NULL; |
||
464 | struct drm_framebuffer *fb; |
||
465 | |||
466 | mutex_lock(&dev->mode_config.idr_mutex); |
||
467 | obj = idr_find(&dev->mode_config.crtc_idr, id); |
||
468 | if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id)) |
||
469 | fb = NULL; |
||
470 | else |
||
471 | fb = obj_to_fb(obj); |
||
472 | mutex_unlock(&dev->mode_config.idr_mutex); |
||
473 | |||
474 | return fb; |
||
475 | } |
||
476 | |||
1123 | serge | 477 | /** |
3480 | Serge | 478 | * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference |
479 | * @dev: drm device |
||
480 | * @id: id of the fb object |
||
481 | * |
||
482 | * If successful, this grabs an additional reference to the framebuffer - |
||
483 | * callers need to make sure to eventually unreference the returned framebuffer |
||
5060 | serge | 484 | * again, using @drm_framebuffer_unreference. |
3480 | Serge | 485 | */ |
486 | struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, |
||
487 | uint32_t id) |
||
488 | { |
||
489 | struct drm_framebuffer *fb; |
||
490 | |||
491 | mutex_lock(&dev->mode_config.fb_lock); |
||
492 | fb = __drm_framebuffer_lookup(dev, id); |
||
6084 | serge | 493 | if (fb) { |
494 | if (!kref_get_unless_zero(&fb->refcount)) |
||
495 | fb = NULL; |
||
496 | } |
||
3480 | Serge | 497 | mutex_unlock(&dev->mode_config.fb_lock); |
498 | |||
499 | return fb; |
||
500 | } |
||
501 | EXPORT_SYMBOL(drm_framebuffer_lookup); |
||
502 | |||
503 | /** |
||
504 | * drm_framebuffer_unreference - unref a framebuffer |
||
505 | * @fb: framebuffer to unref |
||
506 | * |
||
507 | * This functions decrements the fb's refcount and frees it if it drops to zero. |
||
508 | */ |
||
509 | void drm_framebuffer_unreference(struct drm_framebuffer *fb) |
||
510 | { |
||
5060 | serge | 511 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
3480 | Serge | 512 | kref_put(&fb->refcount, drm_framebuffer_free); |
513 | } |
||
514 | EXPORT_SYMBOL(drm_framebuffer_unreference); |
||
515 | |||
516 | /** |
||
517 | * drm_framebuffer_reference - incr the fb refcnt |
||
518 | * @fb: framebuffer |
||
5060 | serge | 519 | * |
520 | * This functions increments the fb's refcount. |
||
3480 | Serge | 521 | */ |
522 | void drm_framebuffer_reference(struct drm_framebuffer *fb) |
||
523 | { |
||
5060 | serge | 524 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
3480 | Serge | 525 | kref_get(&fb->refcount); |
526 | } |
||
527 | EXPORT_SYMBOL(drm_framebuffer_reference); |
||
528 | |||
529 | /** |
||
530 | * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr |
||
531 | * @fb: fb to unregister |
||
532 | * |
||
533 | * Drivers need to call this when cleaning up driver-private framebuffers, e.g. |
||
534 | * those used for fbdev. Note that the caller must hold a reference of it's own, |
||
535 | * i.e. the object may not be destroyed through this call (since it'll lead to a |
||
536 | * locking inversion). |
||
537 | */ |
||
538 | void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) |
||
539 | { |
||
6084 | serge | 540 | struct drm_device *dev; |
3480 | Serge | 541 | |
6084 | serge | 542 | if (!fb) |
543 | return; |
||
544 | |||
545 | dev = fb->dev; |
||
546 | |||
3480 | Serge | 547 | mutex_lock(&dev->mode_config.fb_lock); |
548 | /* Mark fb as reaped and drop idr ref. */ |
||
549 | __drm_framebuffer_unregister(dev, fb); |
||
550 | mutex_unlock(&dev->mode_config.fb_lock); |
||
551 | } |
||
552 | EXPORT_SYMBOL(drm_framebuffer_unregister_private); |
||
553 | |||
554 | /** |
||
1123 | serge | 555 | * drm_framebuffer_cleanup - remove a framebuffer object |
556 | * @fb: framebuffer to remove |
||
557 | * |
||
5060 | serge | 558 | * Cleanup framebuffer. This function is intended to be used from the drivers |
559 | * ->destroy callback. It can also be used to clean up driver private |
||
560 | * framebuffers embedded into a larger structure. |
||
1123 | serge | 561 | * |
3480 | Serge | 562 | * Note that this function does not remove the fb from active usuage - if it is |
563 | * still used anywhere, hilarity can ensue since userspace could call getfb on |
||
564 | * the id and get back -EINVAL. Obviously no concern at driver unload time. |
||
565 | * |
||
566 | * Also, the framebuffer will not be removed from the lookup idr - for |
||
567 | * user-created framebuffers this will happen in in the rmfb ioctl. For |
||
568 | * driver-private objects (e.g. for fbdev) drivers need to explicitly call |
||
569 | * drm_framebuffer_unregister_private. |
||
1123 | serge | 570 | */ |
571 | void drm_framebuffer_cleanup(struct drm_framebuffer *fb) |
||
572 | { |
||
573 | struct drm_device *dev = fb->dev; |
||
3480 | Serge | 574 | |
575 | mutex_lock(&dev->mode_config.fb_lock); |
||
1123 | serge | 576 | list_del(&fb->head); |
577 | dev->mode_config.num_fb--; |
||
3480 | Serge | 578 | mutex_unlock(&dev->mode_config.fb_lock); |
1123 | serge | 579 | } |
580 | EXPORT_SYMBOL(drm_framebuffer_cleanup); |
||
581 | |||
3480 | Serge | 582 | /** |
583 | * drm_framebuffer_remove - remove and unreference a framebuffer object |
||
584 | * @fb: framebuffer to remove |
||
585 | * |
||
586 | * Scans all the CRTCs and planes in @dev's mode_config. If they're |
||
587 | * using @fb, removes it, setting it to NULL. Then drops the reference to the |
||
588 | * passed-in framebuffer. Might take the modeset locks. |
||
589 | * |
||
590 | * Note that this function optimizes the cleanup away if the caller holds the |
||
591 | * last reference to the framebuffer. It is also guaranteed to not take the |
||
592 | * modeset locks in this case. |
||
593 | */ |
||
594 | void drm_framebuffer_remove(struct drm_framebuffer *fb) |
||
595 | { |
||
6084 | serge | 596 | struct drm_device *dev; |
3480 | Serge | 597 | struct drm_crtc *crtc; |
598 | struct drm_plane *plane; |
||
599 | struct drm_mode_set set; |
||
600 | int ret; |
||
3031 | serge | 601 | |
6084 | serge | 602 | if (!fb) |
603 | return; |
||
604 | |||
605 | dev = fb->dev; |
||
606 | |||
3480 | Serge | 607 | WARN_ON(!list_empty(&fb->filp_head)); |
3031 | serge | 608 | |
3480 | Serge | 609 | /* |
610 | * drm ABI mandates that we remove any deleted framebuffers from active |
||
611 | * useage. But since most sane clients only remove framebuffers they no |
||
612 | * longer need, try to optimize this away. |
||
613 | * |
||
614 | * Since we're holding a reference ourselves, observing a refcount of 1 |
||
615 | * means that we're the last holder and can skip it. Also, the refcount |
||
616 | * can never increase from 1 again, so we don't need any barriers or |
||
617 | * locks. |
||
618 | * |
||
619 | * Note that userspace could try to race with use and instate a new |
||
620 | * usage _after_ we've cleared all current ones. End result will be an |
||
621 | * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot |
||
622 | * in this manner. |
||
623 | */ |
||
624 | if (atomic_read(&fb->refcount.refcount) > 1) { |
||
625 | drm_modeset_lock_all(dev); |
||
626 | /* remove from any CRTC */ |
||
6084 | serge | 627 | drm_for_each_crtc(crtc, dev) { |
5060 | serge | 628 | if (crtc->primary->fb == fb) { |
3480 | Serge | 629 | /* should turn off the crtc */ |
630 | memset(&set, 0, sizeof(struct drm_mode_set)); |
||
631 | set.crtc = crtc; |
||
632 | set.fb = NULL; |
||
633 | ret = drm_mode_set_config_internal(&set); |
||
634 | if (ret) |
||
635 | DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); |
||
636 | } |
||
637 | } |
||
3031 | serge | 638 | |
6084 | serge | 639 | drm_for_each_plane(plane, dev) { |
4075 | Serge | 640 | if (plane->fb == fb) |
641 | drm_plane_force_disable(plane); |
||
3480 | Serge | 642 | } |
643 | drm_modeset_unlock_all(dev); |
||
644 | } |
||
3031 | serge | 645 | |
3480 | Serge | 646 | drm_framebuffer_unreference(fb); |
647 | } |
||
648 | EXPORT_SYMBOL(drm_framebuffer_remove); |
||
649 | |||
5060 | serge | 650 | DEFINE_WW_CLASS(crtc_ww_class); |
651 | |||
1123 | serge | 652 | /** |
5060 | serge | 653 | * drm_crtc_init_with_planes - Initialise a new CRTC object with |
654 | * specified primary and cursor planes. |
||
1123 | serge | 655 | * @dev: DRM device |
656 | * @crtc: CRTC object to init |
||
5060 | serge | 657 | * @primary: Primary plane for CRTC |
658 | * @cursor: Cursor plane for CRTC |
||
1123 | serge | 659 | * @funcs: callbacks for the new CRTC |
660 | * |
||
4075 | Serge | 661 | * Inits a new object created as base part of a driver crtc object. |
3031 | serge | 662 | * |
5060 | serge | 663 | * Returns: |
3031 | serge | 664 | * Zero on success, error code on failure. |
1123 | serge | 665 | */ |
5060 | serge | 666 | int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, |
667 | struct drm_plane *primary, |
||
668 | struct drm_plane *cursor, |
||
6084 | serge | 669 | const struct drm_crtc_funcs *funcs) |
1123 | serge | 670 | { |
5060 | serge | 671 | struct drm_mode_config *config = &dev->mode_config; |
3031 | serge | 672 | int ret; |
673 | |||
6084 | serge | 674 | WARN_ON(primary && primary->type != DRM_PLANE_TYPE_PRIMARY); |
675 | WARN_ON(cursor && cursor->type != DRM_PLANE_TYPE_CURSOR); |
||
676 | |||
1123 | serge | 677 | crtc->dev = dev; |
678 | crtc->funcs = funcs; |
||
679 | |||
5060 | serge | 680 | drm_modeset_lock_init(&crtc->mutex); |
3031 | serge | 681 | ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); |
682 | if (ret) |
||
5271 | serge | 683 | return ret; |
3031 | serge | 684 | |
685 | crtc->base.properties = &crtc->properties; |
||
686 | |||
5060 | serge | 687 | list_add_tail(&crtc->head, &config->crtc_list); |
688 | config->num_crtc++; |
||
3031 | serge | 689 | |
5060 | serge | 690 | crtc->primary = primary; |
691 | crtc->cursor = cursor; |
||
692 | if (primary) |
||
693 | primary->possible_crtcs = 1 << drm_crtc_index(crtc); |
||
694 | if (cursor) |
||
695 | cursor->possible_crtcs = 1 << drm_crtc_index(crtc); |
||
696 | |||
6084 | serge | 697 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
698 | drm_object_attach_property(&crtc->base, config->prop_active, 0); |
||
699 | drm_object_attach_property(&crtc->base, config->prop_mode_id, 0); |
||
700 | } |
||
701 | |||
5271 | serge | 702 | return 0; |
1123 | serge | 703 | } |
5060 | serge | 704 | EXPORT_SYMBOL(drm_crtc_init_with_planes); |
1123 | serge | 705 | |
706 | /** |
||
4075 | Serge | 707 | * drm_crtc_cleanup - Clean up the core crtc usage |
1123 | serge | 708 | * @crtc: CRTC to cleanup |
709 | * |
||
4075 | Serge | 710 | * This function cleans up @crtc and removes it from the DRM mode setting |
711 | * core. Note that the function does *not* free the crtc structure itself, |
||
712 | * this is the responsibility of the caller. |
||
1123 | serge | 713 | */ |
714 | void drm_crtc_cleanup(struct drm_crtc *crtc) |
||
715 | { |
||
716 | struct drm_device *dev = crtc->dev; |
||
717 | |||
6084 | serge | 718 | kfree(crtc->gamma_store); |
719 | crtc->gamma_store = NULL; |
||
1123 | serge | 720 | |
5060 | serge | 721 | drm_modeset_lock_fini(&crtc->mutex); |
722 | |||
1123 | serge | 723 | drm_mode_object_put(dev, &crtc->base); |
724 | list_del(&crtc->head); |
||
725 | dev->mode_config.num_crtc--; |
||
5271 | serge | 726 | |
727 | WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state); |
||
728 | if (crtc->state && crtc->funcs->atomic_destroy_state) |
||
729 | crtc->funcs->atomic_destroy_state(crtc, crtc->state); |
||
730 | |||
731 | memset(crtc, 0, sizeof(*crtc)); |
||
1123 | serge | 732 | } |
733 | EXPORT_SYMBOL(drm_crtc_cleanup); |
||
734 | |||
735 | /** |
||
4560 | Serge | 736 | * drm_crtc_index - find the index of a registered CRTC |
737 | * @crtc: CRTC to find index for |
||
738 | * |
||
739 | * Given a registered CRTC, return the index of that CRTC within a DRM |
||
740 | * device's list of CRTCs. |
||
741 | */ |
||
742 | unsigned int drm_crtc_index(struct drm_crtc *crtc) |
||
743 | { |
||
744 | unsigned int index = 0; |
||
745 | struct drm_crtc *tmp; |
||
746 | |||
6084 | serge | 747 | drm_for_each_crtc(tmp, crtc->dev) { |
4560 | Serge | 748 | if (tmp == crtc) |
749 | return index; |
||
750 | |||
751 | index++; |
||
752 | } |
||
753 | |||
754 | BUG(); |
||
755 | } |
||
756 | EXPORT_SYMBOL(drm_crtc_index); |
||
757 | |||
4104 | Serge | 758 | /* |
1123 | serge | 759 | * drm_mode_remove - remove and free a mode |
760 | * @connector: connector list to modify |
||
761 | * @mode: mode to remove |
||
762 | * |
||
763 | * Remove @mode from @connector's mode list, then free it. |
||
764 | */ |
||
4104 | Serge | 765 | static void drm_mode_remove(struct drm_connector *connector, |
6084 | serge | 766 | struct drm_display_mode *mode) |
1123 | serge | 767 | { |
768 | list_del(&mode->head); |
||
3031 | serge | 769 | drm_mode_destroy(connector->dev, mode); |
1123 | serge | 770 | } |
771 | |||
772 | /** |
||
6084 | serge | 773 | * drm_display_info_set_bus_formats - set the supported bus formats |
774 | * @info: display info to store bus formats in |
||
775 | * @formats: array containing the supported bus formats |
||
776 | * @num_formats: the number of entries in the fmts array |
||
777 | * |
||
778 | * Store the supported bus formats in display info structure. |
||
779 | * See MEDIA_BUS_FMT_* definitions in include/uapi/linux/media-bus-format.h for |
||
780 | * a full list of available formats. |
||
781 | */ |
||
782 | int drm_display_info_set_bus_formats(struct drm_display_info *info, |
||
783 | const u32 *formats, |
||
784 | unsigned int num_formats) |
||
785 | { |
||
786 | u32 *fmts = NULL; |
||
787 | |||
788 | if (!formats && num_formats) |
||
789 | return -EINVAL; |
||
790 | |||
791 | if (formats && num_formats) { |
||
792 | fmts = kmemdup(formats, sizeof(*formats) * num_formats, |
||
793 | GFP_KERNEL); |
||
794 | if (!fmts) |
||
795 | return -ENOMEM; |
||
796 | } |
||
797 | |||
798 | kfree(info->bus_formats); |
||
799 | info->bus_formats = fmts; |
||
800 | info->num_bus_formats = num_formats; |
||
801 | |||
802 | return 0; |
||
803 | } |
||
804 | EXPORT_SYMBOL(drm_display_info_set_bus_formats); |
||
805 | |||
806 | /** |
||
807 | * drm_connector_get_cmdline_mode - reads the user's cmdline mode |
||
808 | * @connector: connector to quwery |
||
809 | * |
||
810 | * The kernel supports per-connector configration of its consoles through |
||
811 | * use of the video= parameter. This function parses that option and |
||
812 | * extracts the user's specified mode (or enable/disable status) for a |
||
813 | * particular connector. This is typically only used during the early fbdev |
||
814 | * setup. |
||
815 | */ |
||
816 | static void drm_connector_get_cmdline_mode(struct drm_connector *connector) |
||
817 | { |
||
818 | struct drm_cmdline_mode *mode = &connector->cmdline_mode; |
||
819 | char *option = NULL; |
||
820 | |||
821 | if (fb_get_options(connector->name, &option)) |
||
822 | return; |
||
823 | |||
824 | if (!drm_mode_parse_command_line_for_connector(option, |
||
825 | connector, |
||
826 | mode)) |
||
827 | return; |
||
828 | |||
829 | if (mode->force) { |
||
830 | const char *s; |
||
831 | |||
832 | switch (mode->force) { |
||
833 | case DRM_FORCE_OFF: |
||
834 | s = "OFF"; |
||
835 | break; |
||
836 | case DRM_FORCE_ON_DIGITAL: |
||
837 | s = "ON - dig"; |
||
838 | break; |
||
839 | default: |
||
840 | case DRM_FORCE_ON: |
||
841 | s = "ON"; |
||
842 | break; |
||
843 | } |
||
844 | |||
845 | DRM_INFO("forcing %s connector %s\n", connector->name, s); |
||
846 | connector->force = mode->force; |
||
847 | } |
||
848 | |||
849 | DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n", |
||
850 | connector->name, |
||
851 | mode->xres, mode->yres, |
||
852 | mode->refresh_specified ? mode->refresh : 60, |
||
853 | mode->rb ? " reduced blanking" : "", |
||
854 | mode->margins ? " with margins" : "", |
||
855 | mode->interlace ? " interlaced" : ""); |
||
856 | } |
||
857 | |||
858 | /** |
||
1123 | serge | 859 | * drm_connector_init - Init a preallocated connector |
860 | * @dev: DRM device |
||
861 | * @connector: the connector to init |
||
862 | * @funcs: callbacks for this connector |
||
3480 | Serge | 863 | * @connector_type: user visible type of the connector |
1123 | serge | 864 | * |
865 | * Initialises a preallocated connector. Connectors should be |
||
866 | * subclassed as part of driver connector objects. |
||
3031 | serge | 867 | * |
5060 | serge | 868 | * Returns: |
3031 | serge | 869 | * Zero on success, error code on failure. |
1123 | serge | 870 | */ |
3031 | serge | 871 | int drm_connector_init(struct drm_device *dev, |
6084 | serge | 872 | struct drm_connector *connector, |
873 | const struct drm_connector_funcs *funcs, |
||
874 | int connector_type) |
||
1123 | serge | 875 | { |
6084 | serge | 876 | struct drm_mode_config *config = &dev->mode_config; |
3031 | serge | 877 | int ret; |
4104 | Serge | 878 | struct ida *connector_ida = |
879 | &drm_connector_enum_list[connector_type].ida; |
||
3031 | serge | 880 | |
3480 | Serge | 881 | drm_modeset_lock_all(dev); |
1123 | serge | 882 | |
5060 | serge | 883 | ret = drm_mode_object_get_reg(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR, false); |
3031 | serge | 884 | if (ret) |
5060 | serge | 885 | goto out_unlock; |
3031 | serge | 886 | |
887 | connector->base.properties = &connector->properties; |
||
1123 | serge | 888 | connector->dev = dev; |
889 | connector->funcs = funcs; |
||
890 | connector->connector_type = connector_type; |
||
891 | connector->connector_type_id = |
||
4104 | Serge | 892 | ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); |
893 | if (connector->connector_type_id < 0) { |
||
894 | ret = connector->connector_type_id; |
||
5060 | serge | 895 | goto out_put; |
4104 | Serge | 896 | } |
5060 | serge | 897 | connector->name = |
898 | kasprintf(GFP_KERNEL, "%s-%d", |
||
899 | drm_connector_enum_list[connector_type].name, |
||
900 | connector->connector_type_id); |
||
901 | if (!connector->name) { |
||
902 | ret = -ENOMEM; |
||
903 | goto out_put; |
||
904 | } |
||
905 | |||
1123 | serge | 906 | INIT_LIST_HEAD(&connector->probed_modes); |
907 | INIT_LIST_HEAD(&connector->modes); |
||
908 | connector->edid_blob_ptr = NULL; |
||
3192 | Serge | 909 | connector->status = connector_status_unknown; |
1123 | serge | 910 | |
6084 | serge | 911 | drm_connector_get_cmdline_mode(connector); |
1123 | serge | 912 | |
6084 | serge | 913 | /* We should add connectors at the end to avoid upsetting the connector |
914 | * index too much. */ |
||
915 | list_add_tail(&connector->head, &config->connector_list); |
||
916 | config->num_connector++; |
||
917 | |||
3031 | serge | 918 | if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) |
3192 | Serge | 919 | drm_object_attach_property(&connector->base, |
6084 | serge | 920 | config->edid_property, |
3031 | serge | 921 | 0); |
1123 | serge | 922 | |
3192 | Serge | 923 | drm_object_attach_property(&connector->base, |
6084 | serge | 924 | config->dpms_property, 0); |
1123 | serge | 925 | |
6084 | serge | 926 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
927 | drm_object_attach_property(&connector->base, config->prop_crtc_id, 0); |
||
928 | } |
||
929 | |||
5060 | serge | 930 | connector->debugfs_entry = NULL; |
931 | |||
932 | out_put: |
||
933 | if (ret) |
||
934 | drm_mode_object_put(dev, &connector->base); |
||
935 | |||
936 | out_unlock: |
||
3480 | Serge | 937 | drm_modeset_unlock_all(dev); |
3031 | serge | 938 | |
939 | return ret; |
||
1123 | serge | 940 | } |
941 | EXPORT_SYMBOL(drm_connector_init); |
||
942 | |||
943 | /** |
||
944 | * drm_connector_cleanup - cleans up an initialised connector |
||
945 | * @connector: connector to cleanup |
||
946 | * |
||
947 | * Cleans up the connector but doesn't free the object. |
||
948 | */ |
||
949 | void drm_connector_cleanup(struct drm_connector *connector) |
||
950 | { |
||
951 | struct drm_device *dev = connector->dev; |
||
952 | struct drm_display_mode *mode, *t; |
||
953 | |||
6084 | serge | 954 | if (connector->tile_group) { |
955 | drm_mode_put_tile_group(dev, connector->tile_group); |
||
956 | connector->tile_group = NULL; |
||
957 | } |
||
958 | |||
1123 | serge | 959 | list_for_each_entry_safe(mode, t, &connector->probed_modes, head) |
960 | drm_mode_remove(connector, mode); |
||
961 | |||
962 | list_for_each_entry_safe(mode, t, &connector->modes, head) |
||
963 | drm_mode_remove(connector, mode); |
||
964 | |||
4104 | Serge | 965 | ida_remove(&drm_connector_enum_list[connector->connector_type].ida, |
966 | connector->connector_type_id); |
||
967 | |||
6084 | serge | 968 | kfree(connector->display_info.bus_formats); |
1123 | serge | 969 | drm_mode_object_put(dev, &connector->base); |
5060 | serge | 970 | kfree(connector->name); |
971 | connector->name = NULL; |
||
1123 | serge | 972 | list_del(&connector->head); |
2160 | serge | 973 | dev->mode_config.num_connector--; |
5271 | serge | 974 | |
975 | WARN_ON(connector->state && !connector->funcs->atomic_destroy_state); |
||
976 | if (connector->state && connector->funcs->atomic_destroy_state) |
||
977 | connector->funcs->atomic_destroy_state(connector, |
||
978 | connector->state); |
||
979 | |||
980 | memset(connector, 0, sizeof(*connector)); |
||
1123 | serge | 981 | } |
982 | EXPORT_SYMBOL(drm_connector_cleanup); |
||
983 | |||
5060 | serge | 984 | /** |
5271 | serge | 985 | * drm_connector_index - find the index of a registered connector |
986 | * @connector: connector to find index for |
||
987 | * |
||
988 | * Given a registered connector, return the index of that connector within a DRM |
||
989 | * device's list of connectors. |
||
990 | */ |
||
991 | unsigned int drm_connector_index(struct drm_connector *connector) |
||
992 | { |
||
993 | unsigned int index = 0; |
||
994 | struct drm_connector *tmp; |
||
995 | struct drm_mode_config *config = &connector->dev->mode_config; |
||
996 | |||
997 | WARN_ON(!drm_modeset_is_locked(&config->connection_mutex)); |
||
998 | |||
6084 | serge | 999 | drm_for_each_connector(tmp, connector->dev) { |
5271 | serge | 1000 | if (tmp == connector) |
1001 | return index; |
||
1002 | |||
1003 | index++; |
||
1004 | } |
||
1005 | |||
1006 | BUG(); |
||
1007 | } |
||
1008 | EXPORT_SYMBOL(drm_connector_index); |
||
1009 | |||
1010 | /** |
||
5060 | serge | 1011 | * drm_connector_register - register a connector |
1012 | * @connector: the connector to register |
||
1013 | * |
||
1014 | * Register userspace interfaces for a connector |
||
1015 | * |
||
1016 | * Returns: |
||
1017 | * Zero on success, error code on failure. |
||
1018 | */ |
||
1019 | int drm_connector_register(struct drm_connector *connector) |
||
1020 | { |
||
1021 | int ret; |
||
1022 | |||
1023 | drm_mode_object_register(connector->dev, &connector->base); |
||
1024 | |||
6084 | serge | 1025 | ret = drm_sysfs_connector_add(connector); |
1026 | if (ret) |
||
1027 | return ret; |
||
6296 | serge | 1028 | |
1029 | ret = drm_debugfs_connector_add(connector); |
||
1030 | if (ret) { |
||
1031 | drm_sysfs_connector_remove(connector); |
||
1032 | return ret; |
||
1033 | } |
||
1034 | |||
5060 | serge | 1035 | return 0; |
1036 | } |
||
1037 | EXPORT_SYMBOL(drm_connector_register); |
||
1038 | |||
1039 | /** |
||
1040 | * drm_connector_unregister - unregister a connector |
||
1041 | * @connector: the connector to unregister |
||
1042 | * |
||
1043 | * Unregister userspace interfaces for a connector |
||
1044 | */ |
||
1045 | void drm_connector_unregister(struct drm_connector *connector) |
||
1046 | { |
||
6084 | serge | 1047 | drm_sysfs_connector_remove(connector); |
6296 | serge | 1048 | drm_debugfs_connector_remove(connector); |
5060 | serge | 1049 | } |
1050 | EXPORT_SYMBOL(drm_connector_unregister); |
||
1051 | |||
1052 | |||
1053 | /** |
||
1054 | * drm_connector_unplug_all - unregister connector userspace interfaces |
||
1055 | * @dev: drm device |
||
1056 | * |
||
1057 | * This function unregisters all connector userspace interfaces in sysfs. Should |
||
1058 | * be call when the device is disconnected, e.g. from an usb driver's |
||
1059 | * ->disconnect callback. |
||
1060 | */ |
||
3031 | serge | 1061 | void drm_connector_unplug_all(struct drm_device *dev) |
1062 | { |
||
1063 | struct drm_connector *connector; |
||
1064 | |||
6084 | serge | 1065 | /* FIXME: taking the mode config mutex ends up in a clash with sysfs */ |
5060 | serge | 1066 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) |
1067 | drm_connector_unregister(connector); |
||
3031 | serge | 1068 | |
1069 | } |
||
1070 | EXPORT_SYMBOL(drm_connector_unplug_all); |
||
1071 | |||
5060 | serge | 1072 | /** |
1073 | * drm_encoder_init - Init a preallocated encoder |
||
1074 | * @dev: drm device |
||
1075 | * @encoder: the encoder to init |
||
1076 | * @funcs: callbacks for this encoder |
||
1077 | * @encoder_type: user visible type of the encoder |
||
1078 | * |
||
1079 | * Initialises a preallocated encoder. Encoder should be |
||
1080 | * subclassed as part of driver encoder objects. |
||
1081 | * |
||
1082 | * Returns: |
||
1083 | * Zero on success, error code on failure. |
||
1084 | */ |
||
3031 | serge | 1085 | int drm_encoder_init(struct drm_device *dev, |
1123 | serge | 1086 | struct drm_encoder *encoder, |
1087 | const struct drm_encoder_funcs *funcs, |
||
1088 | int encoder_type) |
||
1089 | { |
||
3031 | serge | 1090 | int ret; |
1091 | |||
3480 | Serge | 1092 | drm_modeset_lock_all(dev); |
1123 | serge | 1093 | |
3031 | serge | 1094 | ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); |
1095 | if (ret) |
||
5060 | serge | 1096 | goto out_unlock; |
3031 | serge | 1097 | |
1123 | serge | 1098 | encoder->dev = dev; |
1099 | encoder->encoder_type = encoder_type; |
||
1100 | encoder->funcs = funcs; |
||
5060 | serge | 1101 | encoder->name = kasprintf(GFP_KERNEL, "%s-%d", |
1102 | drm_encoder_enum_list[encoder_type].name, |
||
1103 | encoder->base.id); |
||
1104 | if (!encoder->name) { |
||
1105 | ret = -ENOMEM; |
||
1106 | goto out_put; |
||
1107 | } |
||
1123 | serge | 1108 | |
1109 | list_add_tail(&encoder->head, &dev->mode_config.encoder_list); |
||
1110 | dev->mode_config.num_encoder++; |
||
1111 | |||
5060 | serge | 1112 | out_put: |
1113 | if (ret) |
||
1114 | drm_mode_object_put(dev, &encoder->base); |
||
1115 | |||
1116 | out_unlock: |
||
3480 | Serge | 1117 | drm_modeset_unlock_all(dev); |
3031 | serge | 1118 | |
1119 | return ret; |
||
1123 | serge | 1120 | } |
1121 | EXPORT_SYMBOL(drm_encoder_init); |
||
1122 | |||
5060 | serge | 1123 | /** |
1124 | * drm_encoder_cleanup - cleans up an initialised encoder |
||
1125 | * @encoder: encoder to cleanup |
||
1126 | * |
||
1127 | * Cleans up the encoder but doesn't free the object. |
||
1128 | */ |
||
1123 | serge | 1129 | void drm_encoder_cleanup(struct drm_encoder *encoder) |
1130 | { |
||
1131 | struct drm_device *dev = encoder->dev; |
||
6084 | serge | 1132 | |
3480 | Serge | 1133 | drm_modeset_lock_all(dev); |
1123 | serge | 1134 | drm_mode_object_put(dev, &encoder->base); |
5060 | serge | 1135 | kfree(encoder->name); |
1123 | serge | 1136 | list_del(&encoder->head); |
2160 | serge | 1137 | dev->mode_config.num_encoder--; |
3480 | Serge | 1138 | drm_modeset_unlock_all(dev); |
5271 | serge | 1139 | |
1140 | memset(encoder, 0, sizeof(*encoder)); |
||
1123 | serge | 1141 | } |
1142 | EXPORT_SYMBOL(drm_encoder_cleanup); |
||
1143 | |||
4075 | Serge | 1144 | /** |
5060 | serge | 1145 | * drm_universal_plane_init - Initialize a new universal plane object |
4075 | Serge | 1146 | * @dev: DRM device |
1147 | * @plane: plane object to init |
||
1148 | * @possible_crtcs: bitmask of possible CRTCs |
||
1149 | * @funcs: callbacks for the new plane |
||
1150 | * @formats: array of supported formats (%DRM_FORMAT_*) |
||
1151 | * @format_count: number of elements in @formats |
||
5060 | serge | 1152 | * @type: type of plane (overlay, primary, cursor) |
4075 | Serge | 1153 | * |
5060 | serge | 1154 | * Initializes a plane object of type @type. |
4075 | Serge | 1155 | * |
5060 | serge | 1156 | * Returns: |
4075 | Serge | 1157 | * Zero on success, error code on failure. |
1158 | */ |
||
5060 | serge | 1159 | int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, |
6084 | serge | 1160 | unsigned long possible_crtcs, |
1161 | const struct drm_plane_funcs *funcs, |
||
1162 | const uint32_t *formats, unsigned int format_count, |
||
5060 | serge | 1163 | enum drm_plane_type type) |
3031 | serge | 1164 | { |
6084 | serge | 1165 | struct drm_mode_config *config = &dev->mode_config; |
3031 | serge | 1166 | int ret; |
1167 | |||
1168 | ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); |
||
1169 | if (ret) |
||
5271 | serge | 1170 | return ret; |
3031 | serge | 1171 | |
5271 | serge | 1172 | drm_modeset_lock_init(&plane->mutex); |
1173 | |||
3031 | serge | 1174 | plane->base.properties = &plane->properties; |
1175 | plane->dev = dev; |
||
1176 | plane->funcs = funcs; |
||
6084 | serge | 1177 | plane->format_types = kmalloc_array(format_count, sizeof(uint32_t), |
1178 | GFP_KERNEL); |
||
3031 | serge | 1179 | if (!plane->format_types) { |
1180 | DRM_DEBUG_KMS("out of memory when allocating plane\n"); |
||
1181 | drm_mode_object_put(dev, &plane->base); |
||
5271 | serge | 1182 | return -ENOMEM; |
3031 | serge | 1183 | } |
1184 | |||
1185 | memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); |
||
1186 | plane->format_count = format_count; |
||
1187 | plane->possible_crtcs = possible_crtcs; |
||
5060 | serge | 1188 | plane->type = type; |
3031 | serge | 1189 | |
6084 | serge | 1190 | list_add_tail(&plane->head, &config->plane_list); |
1191 | config->num_total_plane++; |
||
5060 | serge | 1192 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) |
6084 | serge | 1193 | config->num_overlay_plane++; |
3031 | serge | 1194 | |
5060 | serge | 1195 | drm_object_attach_property(&plane->base, |
6084 | serge | 1196 | config->plane_type_property, |
5060 | serge | 1197 | plane->type); |
1198 | |||
6084 | serge | 1199 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
1200 | drm_object_attach_property(&plane->base, config->prop_fb_id, 0); |
||
1201 | drm_object_attach_property(&plane->base, config->prop_crtc_id, 0); |
||
1202 | drm_object_attach_property(&plane->base, config->prop_crtc_x, 0); |
||
1203 | drm_object_attach_property(&plane->base, config->prop_crtc_y, 0); |
||
1204 | drm_object_attach_property(&plane->base, config->prop_crtc_w, 0); |
||
1205 | drm_object_attach_property(&plane->base, config->prop_crtc_h, 0); |
||
1206 | drm_object_attach_property(&plane->base, config->prop_src_x, 0); |
||
1207 | drm_object_attach_property(&plane->base, config->prop_src_y, 0); |
||
1208 | drm_object_attach_property(&plane->base, config->prop_src_w, 0); |
||
1209 | drm_object_attach_property(&plane->base, config->prop_src_h, 0); |
||
1210 | } |
||
1211 | |||
5271 | serge | 1212 | return 0; |
3031 | serge | 1213 | } |
5060 | serge | 1214 | EXPORT_SYMBOL(drm_universal_plane_init); |
1215 | |||
1216 | /** |
||
1217 | * drm_plane_init - Initialize a legacy plane |
||
1218 | * @dev: DRM device |
||
1219 | * @plane: plane object to init |
||
1220 | * @possible_crtcs: bitmask of possible CRTCs |
||
1221 | * @funcs: callbacks for the new plane |
||
1222 | * @formats: array of supported formats (%DRM_FORMAT_*) |
||
1223 | * @format_count: number of elements in @formats |
||
1224 | * @is_primary: plane type (primary vs overlay) |
||
1225 | * |
||
1226 | * Legacy API to initialize a DRM plane. |
||
1227 | * |
||
1228 | * New drivers should call drm_universal_plane_init() instead. |
||
1229 | * |
||
1230 | * Returns: |
||
1231 | * Zero on success, error code on failure. |
||
1232 | */ |
||
1233 | int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, |
||
1234 | unsigned long possible_crtcs, |
||
1235 | const struct drm_plane_funcs *funcs, |
||
6084 | serge | 1236 | const uint32_t *formats, unsigned int format_count, |
5060 | serge | 1237 | bool is_primary) |
1238 | { |
||
1239 | enum drm_plane_type type; |
||
1240 | |||
1241 | type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; |
||
1242 | return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, |
||
1243 | formats, format_count, type); |
||
1244 | } |
||
3031 | serge | 1245 | EXPORT_SYMBOL(drm_plane_init); |
1246 | |||
4075 | Serge | 1247 | /** |
1248 | * drm_plane_cleanup - Clean up the core plane usage |
||
1249 | * @plane: plane to cleanup |
||
1250 | * |
||
1251 | * This function cleans up @plane and removes it from the DRM mode setting |
||
1252 | * core. Note that the function does *not* free the plane structure itself, |
||
1253 | * this is the responsibility of the caller. |
||
1254 | */ |
||
3031 | serge | 1255 | void drm_plane_cleanup(struct drm_plane *plane) |
1256 | { |
||
1257 | struct drm_device *dev = plane->dev; |
||
1258 | |||
3480 | Serge | 1259 | drm_modeset_lock_all(dev); |
3031 | serge | 1260 | kfree(plane->format_types); |
1261 | drm_mode_object_put(dev, &plane->base); |
||
5060 | serge | 1262 | |
1263 | BUG_ON(list_empty(&plane->head)); |
||
1264 | |||
6084 | serge | 1265 | list_del(&plane->head); |
5060 | serge | 1266 | dev->mode_config.num_total_plane--; |
1267 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) |
||
1268 | dev->mode_config.num_overlay_plane--; |
||
3480 | Serge | 1269 | drm_modeset_unlock_all(dev); |
5271 | serge | 1270 | |
1271 | WARN_ON(plane->state && !plane->funcs->atomic_destroy_state); |
||
1272 | if (plane->state && plane->funcs->atomic_destroy_state) |
||
1273 | plane->funcs->atomic_destroy_state(plane, plane->state); |
||
1274 | |||
1275 | memset(plane, 0, sizeof(*plane)); |
||
3031 | serge | 1276 | } |
1277 | EXPORT_SYMBOL(drm_plane_cleanup); |
||
1278 | |||
1123 | serge | 1279 | /** |
5271 | serge | 1280 | * drm_plane_index - find the index of a registered plane |
1281 | * @plane: plane to find index for |
||
1282 | * |
||
1283 | * Given a registered plane, return the index of that CRTC within a DRM |
||
1284 | * device's list of planes. |
||
1285 | */ |
||
1286 | unsigned int drm_plane_index(struct drm_plane *plane) |
||
1287 | { |
||
1288 | unsigned int index = 0; |
||
1289 | struct drm_plane *tmp; |
||
1290 | |||
6084 | serge | 1291 | drm_for_each_plane(tmp, plane->dev) { |
5271 | serge | 1292 | if (tmp == plane) |
1293 | return index; |
||
1294 | |||
1295 | index++; |
||
1296 | } |
||
1297 | |||
1298 | BUG(); |
||
1299 | } |
||
1300 | EXPORT_SYMBOL(drm_plane_index); |
||
1301 | |||
1302 | /** |
||
6084 | serge | 1303 | * drm_plane_from_index - find the registered plane at an index |
1304 | * @dev: DRM device |
||
1305 | * @idx: index of registered plane to find for |
||
1306 | * |
||
1307 | * Given a plane index, return the registered plane from DRM device's |
||
1308 | * list of planes with matching index. |
||
1309 | */ |
||
1310 | struct drm_plane * |
||
1311 | drm_plane_from_index(struct drm_device *dev, int idx) |
||
1312 | { |
||
1313 | struct drm_plane *plane; |
||
1314 | unsigned int i = 0; |
||
1315 | |||
1316 | drm_for_each_plane(plane, dev) { |
||
1317 | if (i == idx) |
||
1318 | return plane; |
||
1319 | i++; |
||
1320 | } |
||
1321 | return NULL; |
||
1322 | } |
||
1323 | EXPORT_SYMBOL(drm_plane_from_index); |
||
1324 | |||
1325 | /** |
||
4075 | Serge | 1326 | * drm_plane_force_disable - Forcibly disable a plane |
1327 | * @plane: plane to disable |
||
1328 | * |
||
1329 | * Forces the plane to be disabled. |
||
1330 | * |
||
1331 | * Used when the plane's current framebuffer is destroyed, |
||
1332 | * and when restoring fbdev mode. |
||
1333 | */ |
||
1334 | void drm_plane_force_disable(struct drm_plane *plane) |
||
1335 | { |
||
1336 | int ret; |
||
1337 | |||
5271 | serge | 1338 | if (!plane->fb) |
4075 | Serge | 1339 | return; |
1340 | |||
5271 | serge | 1341 | plane->old_fb = plane->fb; |
4075 | Serge | 1342 | ret = plane->funcs->disable_plane(plane); |
5060 | serge | 1343 | if (ret) { |
4075 | Serge | 1344 | DRM_ERROR("failed to disable plane with busy fb\n"); |
5271 | serge | 1345 | plane->old_fb = NULL; |
5060 | serge | 1346 | return; |
1347 | } |
||
4075 | Serge | 1348 | /* disconnect the plane from the fb and crtc: */ |
6084 | serge | 1349 | drm_framebuffer_unreference(plane->old_fb); |
5271 | serge | 1350 | plane->old_fb = NULL; |
4075 | Serge | 1351 | plane->fb = NULL; |
1352 | plane->crtc = NULL; |
||
1353 | } |
||
1354 | EXPORT_SYMBOL(drm_plane_force_disable); |
||
1355 | |||
6084 | serge | 1356 | static int drm_mode_create_standard_properties(struct drm_device *dev) |
1123 | serge | 1357 | { |
6084 | serge | 1358 | struct drm_property *prop; |
1123 | serge | 1359 | |
1360 | /* |
||
1361 | * Standard properties (apply to all connectors) |
||
1362 | */ |
||
6084 | serge | 1363 | prop = drm_property_create(dev, DRM_MODE_PROP_BLOB | |
1123 | serge | 1364 | DRM_MODE_PROP_IMMUTABLE, |
1365 | "EDID", 0); |
||
6084 | serge | 1366 | if (!prop) |
1367 | return -ENOMEM; |
||
1368 | dev->mode_config.edid_property = prop; |
||
1123 | serge | 1369 | |
6084 | serge | 1370 | prop = drm_property_create_enum(dev, 0, |
3031 | serge | 1371 | "DPMS", drm_dpms_enum_list, |
1372 | ARRAY_SIZE(drm_dpms_enum_list)); |
||
6084 | serge | 1373 | if (!prop) |
1374 | return -ENOMEM; |
||
1375 | dev->mode_config.dpms_property = prop; |
||
1123 | serge | 1376 | |
6084 | serge | 1377 | prop = drm_property_create(dev, |
1378 | DRM_MODE_PROP_BLOB | |
||
1379 | DRM_MODE_PROP_IMMUTABLE, |
||
1380 | "PATH", 0); |
||
1381 | if (!prop) |
||
1382 | return -ENOMEM; |
||
1383 | dev->mode_config.path_property = prop; |
||
5060 | serge | 1384 | |
6084 | serge | 1385 | prop = drm_property_create(dev, |
1386 | DRM_MODE_PROP_BLOB | |
||
1387 | DRM_MODE_PROP_IMMUTABLE, |
||
1388 | "TILE", 0); |
||
1389 | if (!prop) |
||
1390 | return -ENOMEM; |
||
1391 | dev->mode_config.tile_property = prop; |
||
5271 | serge | 1392 | |
6084 | serge | 1393 | prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
5060 | serge | 1394 | "type", drm_plane_type_enum_list, |
1395 | ARRAY_SIZE(drm_plane_type_enum_list)); |
||
6084 | serge | 1396 | if (!prop) |
1397 | return -ENOMEM; |
||
1398 | dev->mode_config.plane_type_property = prop; |
||
5060 | serge | 1399 | |
6084 | serge | 1400 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, |
1401 | "SRC_X", 0, UINT_MAX); |
||
1402 | if (!prop) |
||
1403 | return -ENOMEM; |
||
1404 | dev->mode_config.prop_src_x = prop; |
||
1405 | |||
1406 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, |
||
1407 | "SRC_Y", 0, UINT_MAX); |
||
1408 | if (!prop) |
||
1409 | return -ENOMEM; |
||
1410 | dev->mode_config.prop_src_y = prop; |
||
1411 | |||
1412 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, |
||
1413 | "SRC_W", 0, UINT_MAX); |
||
1414 | if (!prop) |
||
1415 | return -ENOMEM; |
||
1416 | dev->mode_config.prop_src_w = prop; |
||
1417 | |||
1418 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, |
||
1419 | "SRC_H", 0, UINT_MAX); |
||
1420 | if (!prop) |
||
1421 | return -ENOMEM; |
||
1422 | dev->mode_config.prop_src_h = prop; |
||
1423 | |||
1424 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, |
||
1425 | "CRTC_X", INT_MIN, INT_MAX); |
||
1426 | if (!prop) |
||
1427 | return -ENOMEM; |
||
1428 | dev->mode_config.prop_crtc_x = prop; |
||
1429 | |||
1430 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, |
||
1431 | "CRTC_Y", INT_MIN, INT_MAX); |
||
1432 | if (!prop) |
||
1433 | return -ENOMEM; |
||
1434 | dev->mode_config.prop_crtc_y = prop; |
||
1435 | |||
1436 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, |
||
1437 | "CRTC_W", 0, INT_MAX); |
||
1438 | if (!prop) |
||
1439 | return -ENOMEM; |
||
1440 | dev->mode_config.prop_crtc_w = prop; |
||
1441 | |||
1442 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, |
||
1443 | "CRTC_H", 0, INT_MAX); |
||
1444 | if (!prop) |
||
1445 | return -ENOMEM; |
||
1446 | dev->mode_config.prop_crtc_h = prop; |
||
1447 | |||
1448 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, |
||
1449 | "FB_ID", DRM_MODE_OBJECT_FB); |
||
1450 | if (!prop) |
||
1451 | return -ENOMEM; |
||
1452 | dev->mode_config.prop_fb_id = prop; |
||
1453 | |||
1454 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, |
||
1455 | "CRTC_ID", DRM_MODE_OBJECT_CRTC); |
||
1456 | if (!prop) |
||
1457 | return -ENOMEM; |
||
1458 | dev->mode_config.prop_crtc_id = prop; |
||
1459 | |||
1460 | prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC, |
||
1461 | "ACTIVE"); |
||
1462 | if (!prop) |
||
1463 | return -ENOMEM; |
||
1464 | dev->mode_config.prop_active = prop; |
||
1465 | |||
1466 | prop = drm_property_create(dev, |
||
1467 | DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB, |
||
1468 | "MODE_ID", 0); |
||
1469 | if (!prop) |
||
1470 | return -ENOMEM; |
||
1471 | dev->mode_config.prop_mode_id = prop; |
||
1472 | |||
5060 | serge | 1473 | return 0; |
1474 | } |
||
1475 | |||
1123 | serge | 1476 | /** |
1477 | * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties |
||
1478 | * @dev: DRM device |
||
1479 | * |
||
1480 | * Called by a driver the first time a DVI-I connector is made. |
||
1481 | */ |
||
1482 | int drm_mode_create_dvi_i_properties(struct drm_device *dev) |
||
1483 | { |
||
1484 | struct drm_property *dvi_i_selector; |
||
1485 | struct drm_property *dvi_i_subconnector; |
||
1486 | |||
1487 | if (dev->mode_config.dvi_i_select_subconnector_property) |
||
1488 | return 0; |
||
1489 | |||
1490 | dvi_i_selector = |
||
3031 | serge | 1491 | drm_property_create_enum(dev, 0, |
1123 | serge | 1492 | "select subconnector", |
3031 | serge | 1493 | drm_dvi_i_select_enum_list, |
1123 | serge | 1494 | ARRAY_SIZE(drm_dvi_i_select_enum_list)); |
1495 | dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; |
||
1496 | |||
3031 | serge | 1497 | dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
1123 | serge | 1498 | "subconnector", |
3031 | serge | 1499 | drm_dvi_i_subconnector_enum_list, |
1123 | serge | 1500 | ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); |
1501 | dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; |
||
1502 | |||
1503 | return 0; |
||
1504 | } |
||
1505 | EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); |
||
1506 | |||
1507 | /** |
||
1508 | * drm_create_tv_properties - create TV specific connector properties |
||
1509 | * @dev: DRM device |
||
1510 | * @num_modes: number of different TV formats (modes) supported |
||
1511 | * @modes: array of pointers to strings containing name of each format |
||
1512 | * |
||
1513 | * Called by a driver's TV initialization routine, this function creates |
||
1514 | * the TV specific connector properties for a given device. Caller is |
||
1515 | * responsible for allocating a list of format names and passing them to |
||
1516 | * this routine. |
||
1517 | */ |
||
5271 | serge | 1518 | int drm_mode_create_tv_properties(struct drm_device *dev, |
1519 | unsigned int num_modes, |
||
6084 | serge | 1520 | const char * const modes[]) |
1123 | serge | 1521 | { |
1522 | struct drm_property *tv_selector; |
||
1523 | struct drm_property *tv_subconnector; |
||
5271 | serge | 1524 | unsigned int i; |
1123 | serge | 1525 | |
1526 | if (dev->mode_config.tv_select_subconnector_property) |
||
1527 | return 0; |
||
1528 | |||
1529 | /* |
||
1530 | * Basic connector properties |
||
1531 | */ |
||
3031 | serge | 1532 | tv_selector = drm_property_create_enum(dev, 0, |
1123 | serge | 1533 | "select subconnector", |
3031 | serge | 1534 | drm_tv_select_enum_list, |
1123 | serge | 1535 | ARRAY_SIZE(drm_tv_select_enum_list)); |
6084 | serge | 1536 | if (!tv_selector) |
1537 | goto nomem; |
||
1538 | |||
1123 | serge | 1539 | dev->mode_config.tv_select_subconnector_property = tv_selector; |
1540 | |||
1541 | tv_subconnector = |
||
3031 | serge | 1542 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
1543 | "subconnector", |
||
1544 | drm_tv_subconnector_enum_list, |
||
1123 | serge | 1545 | ARRAY_SIZE(drm_tv_subconnector_enum_list)); |
6084 | serge | 1546 | if (!tv_subconnector) |
1547 | goto nomem; |
||
1123 | serge | 1548 | dev->mode_config.tv_subconnector_property = tv_subconnector; |
1549 | |||
1550 | /* |
||
1551 | * Other, TV specific properties: margins & TV modes. |
||
1552 | */ |
||
1553 | dev->mode_config.tv_left_margin_property = |
||
3031 | serge | 1554 | drm_property_create_range(dev, 0, "left margin", 0, 100); |
6084 | serge | 1555 | if (!dev->mode_config.tv_left_margin_property) |
1556 | goto nomem; |
||
1123 | serge | 1557 | |
1558 | dev->mode_config.tv_right_margin_property = |
||
3031 | serge | 1559 | drm_property_create_range(dev, 0, "right margin", 0, 100); |
6084 | serge | 1560 | if (!dev->mode_config.tv_right_margin_property) |
1561 | goto nomem; |
||
1123 | serge | 1562 | |
1563 | dev->mode_config.tv_top_margin_property = |
||
3031 | serge | 1564 | drm_property_create_range(dev, 0, "top margin", 0, 100); |
6084 | serge | 1565 | if (!dev->mode_config.tv_top_margin_property) |
1566 | goto nomem; |
||
1123 | serge | 1567 | |
1568 | dev->mode_config.tv_bottom_margin_property = |
||
3031 | serge | 1569 | drm_property_create_range(dev, 0, "bottom margin", 0, 100); |
6084 | serge | 1570 | if (!dev->mode_config.tv_bottom_margin_property) |
1571 | goto nomem; |
||
1123 | serge | 1572 | |
1573 | dev->mode_config.tv_mode_property = |
||
1574 | drm_property_create(dev, DRM_MODE_PROP_ENUM, |
||
1575 | "mode", num_modes); |
||
6084 | serge | 1576 | if (!dev->mode_config.tv_mode_property) |
1577 | goto nomem; |
||
1578 | |||
1123 | serge | 1579 | for (i = 0; i < num_modes; i++) |
1580 | drm_property_add_enum(dev->mode_config.tv_mode_property, i, |
||
1581 | i, modes[i]); |
||
1582 | |||
1179 | serge | 1583 | dev->mode_config.tv_brightness_property = |
3031 | serge | 1584 | drm_property_create_range(dev, 0, "brightness", 0, 100); |
6084 | serge | 1585 | if (!dev->mode_config.tv_brightness_property) |
1586 | goto nomem; |
||
1179 | serge | 1587 | |
1588 | dev->mode_config.tv_contrast_property = |
||
3031 | serge | 1589 | drm_property_create_range(dev, 0, "contrast", 0, 100); |
6084 | serge | 1590 | if (!dev->mode_config.tv_contrast_property) |
1591 | goto nomem; |
||
1179 | serge | 1592 | |
1593 | dev->mode_config.tv_flicker_reduction_property = |
||
3031 | serge | 1594 | drm_property_create_range(dev, 0, "flicker reduction", 0, 100); |
6084 | serge | 1595 | if (!dev->mode_config.tv_flicker_reduction_property) |
1596 | goto nomem; |
||
1179 | serge | 1597 | |
1598 | dev->mode_config.tv_overscan_property = |
||
3031 | serge | 1599 | drm_property_create_range(dev, 0, "overscan", 0, 100); |
6084 | serge | 1600 | if (!dev->mode_config.tv_overscan_property) |
1601 | goto nomem; |
||
1179 | serge | 1602 | |
1603 | dev->mode_config.tv_saturation_property = |
||
3031 | serge | 1604 | drm_property_create_range(dev, 0, "saturation", 0, 100); |
6084 | serge | 1605 | if (!dev->mode_config.tv_saturation_property) |
1606 | goto nomem; |
||
1179 | serge | 1607 | |
1608 | dev->mode_config.tv_hue_property = |
||
3031 | serge | 1609 | drm_property_create_range(dev, 0, "hue", 0, 100); |
6084 | serge | 1610 | if (!dev->mode_config.tv_hue_property) |
1611 | goto nomem; |
||
1179 | serge | 1612 | |
1123 | serge | 1613 | return 0; |
6084 | serge | 1614 | nomem: |
1615 | return -ENOMEM; |
||
1123 | serge | 1616 | } |
1617 | EXPORT_SYMBOL(drm_mode_create_tv_properties); |
||
1618 | |||
1619 | /** |
||
1620 | * drm_mode_create_scaling_mode_property - create scaling mode property |
||
1621 | * @dev: DRM device |
||
1622 | * |
||
1623 | * Called by a driver the first time it's needed, must be attached to desired |
||
1624 | * connectors. |
||
1625 | */ |
||
1626 | int drm_mode_create_scaling_mode_property(struct drm_device *dev) |
||
1627 | { |
||
1628 | struct drm_property *scaling_mode; |
||
1629 | |||
1630 | if (dev->mode_config.scaling_mode_property) |
||
1631 | return 0; |
||
1632 | |||
1633 | scaling_mode = |
||
3031 | serge | 1634 | drm_property_create_enum(dev, 0, "scaling mode", |
1635 | drm_scaling_mode_enum_list, |
||
1123 | serge | 1636 | ARRAY_SIZE(drm_scaling_mode_enum_list)); |
1637 | |||
1638 | dev->mode_config.scaling_mode_property = scaling_mode; |
||
1639 | |||
1640 | return 0; |
||
1641 | } |
||
1642 | EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); |
||
1643 | |||
1644 | /** |
||
5060 | serge | 1645 | * drm_mode_create_aspect_ratio_property - create aspect ratio property |
1646 | * @dev: DRM device |
||
1647 | * |
||
1648 | * Called by a driver the first time it's needed, must be attached to desired |
||
1649 | * connectors. |
||
1650 | * |
||
1651 | * Returns: |
||
5271 | serge | 1652 | * Zero on success, negative errno on failure. |
5060 | serge | 1653 | */ |
1654 | int drm_mode_create_aspect_ratio_property(struct drm_device *dev) |
||
1655 | { |
||
1656 | if (dev->mode_config.aspect_ratio_property) |
||
1657 | return 0; |
||
1658 | |||
1659 | dev->mode_config.aspect_ratio_property = |
||
1660 | drm_property_create_enum(dev, 0, "aspect ratio", |
||
1661 | drm_aspect_ratio_enum_list, |
||
1662 | ARRAY_SIZE(drm_aspect_ratio_enum_list)); |
||
1663 | |||
1664 | if (dev->mode_config.aspect_ratio_property == NULL) |
||
1665 | return -ENOMEM; |
||
1666 | |||
1667 | return 0; |
||
1668 | } |
||
1669 | EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property); |
||
1670 | |||
1671 | /** |
||
1321 | serge | 1672 | * drm_mode_create_dirty_property - create dirty property |
1673 | * @dev: DRM device |
||
1674 | * |
||
1675 | * Called by a driver the first time it's needed, must be attached to desired |
||
1676 | * connectors. |
||
1677 | */ |
||
1678 | int drm_mode_create_dirty_info_property(struct drm_device *dev) |
||
1679 | { |
||
1680 | struct drm_property *dirty_info; |
||
1681 | |||
1682 | if (dev->mode_config.dirty_info_property) |
||
1683 | return 0; |
||
1684 | |||
1685 | dirty_info = |
||
3031 | serge | 1686 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
1321 | serge | 1687 | "dirty", |
3031 | serge | 1688 | drm_dirty_info_enum_list, |
1321 | serge | 1689 | ARRAY_SIZE(drm_dirty_info_enum_list)); |
1690 | dev->mode_config.dirty_info_property = dirty_info; |
||
1691 | |||
1692 | return 0; |
||
1693 | } |
||
1694 | EXPORT_SYMBOL(drm_mode_create_dirty_info_property); |
||
1695 | |||
5271 | serge | 1696 | /** |
1697 | * drm_mode_create_suggested_offset_properties - create suggests offset properties |
||
1698 | * @dev: DRM device |
||
1699 | * |
||
1700 | * Create the the suggested x/y offset property for connectors. |
||
1701 | */ |
||
1702 | int drm_mode_create_suggested_offset_properties(struct drm_device *dev) |
||
1703 | { |
||
1704 | if (dev->mode_config.suggested_x_property && dev->mode_config.suggested_y_property) |
||
1705 | return 0; |
||
1706 | |||
1707 | dev->mode_config.suggested_x_property = |
||
1708 | drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested X", 0, 0xffffffff); |
||
1709 | |||
1710 | dev->mode_config.suggested_y_property = |
||
1711 | drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested Y", 0, 0xffffffff); |
||
1712 | |||
1713 | if (dev->mode_config.suggested_x_property == NULL || |
||
1714 | dev->mode_config.suggested_y_property == NULL) |
||
1715 | return -ENOMEM; |
||
1716 | return 0; |
||
1717 | } |
||
1718 | EXPORT_SYMBOL(drm_mode_create_suggested_offset_properties); |
||
1719 | |||
1123 | serge | 1720 | #if 0 |
1721 | /** |
||
1722 | * drm_mode_getresources - get graphics configuration |
||
3480 | Serge | 1723 | * @dev: drm device for the ioctl |
1724 | * @data: data pointer for the ioctl |
||
1725 | * @file_priv: drm file for the ioctl call |
||
1123 | serge | 1726 | * |
1727 | * Construct a set of configuration description structures and return |
||
1728 | * them to the user, including CRTC, connector and framebuffer configuration. |
||
1729 | * |
||
1730 | * Called by the user via ioctl. |
||
1731 | * |
||
5060 | serge | 1732 | * Returns: |
5271 | serge | 1733 | * Zero on success, negative errno on failure. |
1123 | serge | 1734 | */ |
1735 | int drm_mode_getresources(struct drm_device *dev, void *data, |
||
1736 | struct drm_file *file_priv) |
||
1737 | { |
||
1738 | struct drm_mode_card_res *card_res = data; |
||
1739 | struct list_head *lh; |
||
1740 | struct drm_framebuffer *fb; |
||
1741 | struct drm_connector *connector; |
||
1742 | struct drm_crtc *crtc; |
||
1743 | struct drm_encoder *encoder; |
||
1744 | int ret = 0; |
||
1745 | int connector_count = 0; |
||
1746 | int crtc_count = 0; |
||
1747 | int fb_count = 0; |
||
1748 | int encoder_count = 0; |
||
6084 | serge | 1749 | int copied = 0; |
1123 | serge | 1750 | uint32_t __user *fb_id; |
1751 | uint32_t __user *crtc_id; |
||
1752 | uint32_t __user *connector_id; |
||
1753 | uint32_t __user *encoder_id; |
||
1754 | |||
1963 | serge | 1755 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1756 | return -EINVAL; |
||
1757 | |||
1123 | serge | 1758 | |
3480 | Serge | 1759 | mutex_lock(&file_priv->fbs_lock); |
1123 | serge | 1760 | /* |
1761 | * For the non-control nodes we need to limit the list of resources |
||
1762 | * by IDs in the group list for this node |
||
1763 | */ |
||
1764 | list_for_each(lh, &file_priv->fbs) |
||
1765 | fb_count++; |
||
1766 | |||
3480 | Serge | 1767 | /* handle this in 4 parts */ |
1768 | /* FBs */ |
||
1769 | if (card_res->count_fbs >= fb_count) { |
||
1770 | copied = 0; |
||
1771 | fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; |
||
1772 | list_for_each_entry(fb, &file_priv->fbs, filp_head) { |
||
1773 | if (put_user(fb->base.id, fb_id + copied)) { |
||
1774 | mutex_unlock(&file_priv->fbs_lock); |
||
1775 | return -EFAULT; |
||
1776 | } |
||
1777 | copied++; |
||
1778 | } |
||
1779 | } |
||
1780 | card_res->count_fbs = fb_count; |
||
1781 | mutex_unlock(&file_priv->fbs_lock); |
||
1782 | |||
5271 | serge | 1783 | /* mode_config.mutex protects the connector list against e.g. DP MST |
1784 | * connector hot-adding. CRTC/Plane lists are invariant. */ |
||
1785 | mutex_lock(&dev->mode_config.mutex); |
||
6084 | serge | 1786 | drm_for_each_crtc(crtc, dev) |
1787 | crtc_count++; |
||
1123 | serge | 1788 | |
6084 | serge | 1789 | drm_for_each_connector(connector, dev) |
1790 | connector_count++; |
||
1123 | serge | 1791 | |
6084 | serge | 1792 | drm_for_each_encoder(encoder, dev) |
1793 | encoder_count++; |
||
1123 | serge | 1794 | |
1795 | card_res->max_height = dev->mode_config.max_height; |
||
1796 | card_res->min_height = dev->mode_config.min_height; |
||
1797 | card_res->max_width = dev->mode_config.max_width; |
||
1798 | card_res->min_width = dev->mode_config.min_width; |
||
1799 | |||
1800 | /* CRTCs */ |
||
1801 | if (card_res->count_crtcs >= crtc_count) { |
||
1802 | copied = 0; |
||
1803 | crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; |
||
6084 | serge | 1804 | drm_for_each_crtc(crtc, dev) { |
1805 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
||
1806 | if (put_user(crtc->base.id, crtc_id + copied)) { |
||
1807 | ret = -EFAULT; |
||
1808 | goto out; |
||
1123 | serge | 1809 | } |
6084 | serge | 1810 | copied++; |
1123 | serge | 1811 | } |
1812 | } |
||
1813 | card_res->count_crtcs = crtc_count; |
||
1814 | |||
1815 | /* Encoders */ |
||
1816 | if (card_res->count_encoders >= encoder_count) { |
||
1817 | copied = 0; |
||
1818 | encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; |
||
6084 | serge | 1819 | drm_for_each_encoder(encoder, dev) { |
1820 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, |
||
1821 | encoder->name); |
||
1822 | if (put_user(encoder->base.id, encoder_id + |
||
1823 | copied)) { |
||
1824 | ret = -EFAULT; |
||
1825 | goto out; |
||
1123 | serge | 1826 | } |
6084 | serge | 1827 | copied++; |
1123 | serge | 1828 | } |
1829 | } |
||
1830 | card_res->count_encoders = encoder_count; |
||
1831 | |||
1832 | /* Connectors */ |
||
1833 | if (card_res->count_connectors >= connector_count) { |
||
1834 | copied = 0; |
||
1835 | connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; |
||
6084 | serge | 1836 | drm_for_each_connector(connector, dev) { |
1837 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
||
1838 | connector->base.id, |
||
1839 | connector->name); |
||
1840 | if (put_user(connector->base.id, |
||
1841 | connector_id + copied)) { |
||
1842 | ret = -EFAULT; |
||
1843 | goto out; |
||
1123 | serge | 1844 | } |
6084 | serge | 1845 | copied++; |
1123 | serge | 1846 | } |
1847 | } |
||
1848 | card_res->count_connectors = connector_count; |
||
1849 | |||
1963 | serge | 1850 | DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, |
1123 | serge | 1851 | card_res->count_connectors, card_res->count_encoders); |
1852 | |||
1853 | out: |
||
5271 | serge | 1854 | mutex_unlock(&dev->mode_config.mutex); |
1123 | serge | 1855 | return ret; |
1856 | } |
||
1857 | |||
1858 | /** |
||
1859 | * drm_mode_getcrtc - get CRTC configuration |
||
3480 | Serge | 1860 | * @dev: drm device for the ioctl |
1861 | * @data: data pointer for the ioctl |
||
1862 | * @file_priv: drm file for the ioctl call |
||
1123 | serge | 1863 | * |
1864 | * Construct a CRTC configuration structure to return to the user. |
||
1865 | * |
||
1866 | * Called by the user via ioctl. |
||
1867 | * |
||
5060 | serge | 1868 | * Returns: |
5271 | serge | 1869 | * Zero on success, negative errno on failure. |
1123 | serge | 1870 | */ |
1871 | int drm_mode_getcrtc(struct drm_device *dev, |
||
1872 | void *data, struct drm_file *file_priv) |
||
1873 | { |
||
1874 | struct drm_mode_crtc *crtc_resp = data; |
||
1875 | struct drm_crtc *crtc; |
||
1876 | |||
1963 | serge | 1877 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1878 | return -EINVAL; |
||
1879 | |||
5060 | serge | 1880 | crtc = drm_crtc_find(dev, crtc_resp->crtc_id); |
5271 | serge | 1881 | if (!crtc) |
1882 | return -ENOENT; |
||
1123 | serge | 1883 | |
5271 | serge | 1884 | drm_modeset_lock_crtc(crtc, crtc->primary); |
1123 | serge | 1885 | crtc_resp->gamma_size = crtc->gamma_size; |
5060 | serge | 1886 | if (crtc->primary->fb) |
1887 | crtc_resp->fb_id = crtc->primary->fb->base.id; |
||
1123 | serge | 1888 | else |
1889 | crtc_resp->fb_id = 0; |
||
1890 | |||
6084 | serge | 1891 | if (crtc->state) { |
1892 | crtc_resp->x = crtc->primary->state->src_x >> 16; |
||
1893 | crtc_resp->y = crtc->primary->state->src_y >> 16; |
||
1894 | if (crtc->state->enable) { |
||
1895 | drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->state->mode); |
||
1896 | crtc_resp->mode_valid = 1; |
||
1123 | serge | 1897 | |
6084 | serge | 1898 | } else { |
1899 | crtc_resp->mode_valid = 0; |
||
1900 | } |
||
1901 | } else { |
||
1902 | crtc_resp->x = crtc->x; |
||
1903 | crtc_resp->y = crtc->y; |
||
1904 | if (crtc->enabled) { |
||
1905 | drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->mode); |
||
1906 | crtc_resp->mode_valid = 1; |
||
1123 | serge | 1907 | |
6084 | serge | 1908 | } else { |
1909 | crtc_resp->mode_valid = 0; |
||
1910 | } |
||
1123 | serge | 1911 | } |
5271 | serge | 1912 | drm_modeset_unlock_crtc(crtc); |
1123 | serge | 1913 | |
5271 | serge | 1914 | return 0; |
1123 | serge | 1915 | } |
1916 | |||
4560 | Serge | 1917 | static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode, |
1918 | const struct drm_file *file_priv) |
||
1919 | { |
||
1920 | /* |
||
1921 | * If user-space hasn't configured the driver to expose the stereo 3D |
||
1922 | * modes, don't expose them. |
||
1923 | */ |
||
1924 | if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) |
||
1925 | return false; |
||
1926 | |||
1927 | return true; |
||
1928 | } |
||
1929 | |||
5271 | serge | 1930 | static struct drm_encoder *drm_connector_get_encoder(struct drm_connector *connector) |
1931 | { |
||
1932 | /* For atomic drivers only state objects are synchronously updated and |
||
1933 | * protected by modeset locks, so check those first. */ |
||
1934 | if (connector->state) |
||
1935 | return connector->state->best_encoder; |
||
1936 | return connector->encoder; |
||
1937 | } |
||
1938 | |||
6084 | serge | 1939 | /* helper for getconnector and getproperties ioctls */ |
1940 | static int get_properties(struct drm_mode_object *obj, bool atomic, |
||
1941 | uint32_t __user *prop_ptr, uint64_t __user *prop_values, |
||
1942 | uint32_t *arg_count_props) |
||
1943 | { |
||
1944 | int props_count; |
||
1945 | int i, ret, copied; |
||
1946 | |||
1947 | props_count = obj->properties->count; |
||
1948 | if (!atomic) |
||
1949 | props_count -= obj->properties->atomic_count; |
||
1950 | |||
1951 | if ((*arg_count_props >= props_count) && props_count) { |
||
1952 | for (i = 0, copied = 0; copied < props_count; i++) { |
||
1953 | struct drm_property *prop = obj->properties->properties[i]; |
||
1954 | uint64_t val; |
||
1955 | |||
1956 | if ((prop->flags & DRM_MODE_PROP_ATOMIC) && !atomic) |
||
1957 | continue; |
||
1958 | |||
1959 | ret = drm_object_property_get_value(obj, prop, &val); |
||
1960 | if (ret) |
||
1961 | return ret; |
||
1962 | |||
1963 | if (put_user(prop->base.id, prop_ptr + copied)) |
||
1964 | return -EFAULT; |
||
1965 | |||
1966 | if (put_user(val, prop_values + copied)) |
||
1967 | return -EFAULT; |
||
1968 | |||
1969 | copied++; |
||
1970 | } |
||
1971 | } |
||
1972 | *arg_count_props = props_count; |
||
1973 | |||
1974 | return 0; |
||
1975 | } |
||
1976 | |||
1123 | serge | 1977 | /** |
1978 | * drm_mode_getconnector - get connector configuration |
||
3480 | Serge | 1979 | * @dev: drm device for the ioctl |
1980 | * @data: data pointer for the ioctl |
||
1981 | * @file_priv: drm file for the ioctl call |
||
1123 | serge | 1982 | * |
1983 | * Construct a connector configuration structure to return to the user. |
||
1984 | * |
||
1985 | * Called by the user via ioctl. |
||
1986 | * |
||
5060 | serge | 1987 | * Returns: |
5271 | serge | 1988 | * Zero on success, negative errno on failure. |
1123 | serge | 1989 | */ |
1990 | int drm_mode_getconnector(struct drm_device *dev, void *data, |
||
1991 | struct drm_file *file_priv) |
||
1992 | { |
||
1993 | struct drm_mode_get_connector *out_resp = data; |
||
1994 | struct drm_connector *connector; |
||
5271 | serge | 1995 | struct drm_encoder *encoder; |
1123 | serge | 1996 | struct drm_display_mode *mode; |
1997 | int mode_count = 0; |
||
1998 | int encoders_count = 0; |
||
1999 | int ret = 0; |
||
2000 | int copied = 0; |
||
2001 | int i; |
||
2002 | struct drm_mode_modeinfo u_mode; |
||
2003 | struct drm_mode_modeinfo __user *mode_ptr; |
||
2004 | uint32_t __user *encoder_ptr; |
||
2005 | |||
1963 | serge | 2006 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2007 | return -EINVAL; |
||
2008 | |||
1123 | serge | 2009 | memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); |
2010 | |||
1963 | serge | 2011 | DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); |
1123 | serge | 2012 | |
2013 | mutex_lock(&dev->mode_config.mutex); |
||
2014 | |||
5060 | serge | 2015 | connector = drm_connector_find(dev, out_resp->connector_id); |
2016 | if (!connector) { |
||
4560 | Serge | 2017 | ret = -ENOENT; |
6084 | serge | 2018 | goto out_unlock; |
1123 | serge | 2019 | } |
2020 | |||
6084 | serge | 2021 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) |
2022 | if (connector->encoder_ids[i] != 0) |
||
1123 | serge | 2023 | encoders_count++; |
2024 | |||
2025 | if (out_resp->count_modes == 0) { |
||
2026 | connector->funcs->fill_modes(connector, |
||
2027 | dev->mode_config.max_width, |
||
2028 | dev->mode_config.max_height); |
||
2029 | } |
||
2030 | |||
2031 | /* delayed so we get modes regardless of pre-fill_modes state */ |
||
2032 | list_for_each_entry(mode, &connector->modes, head) |
||
4560 | Serge | 2033 | if (drm_mode_expose_to_userspace(mode, file_priv)) |
6084 | serge | 2034 | mode_count++; |
1123 | serge | 2035 | |
2036 | out_resp->connector_id = connector->base.id; |
||
2037 | out_resp->connector_type = connector->connector_type; |
||
2038 | out_resp->connector_type_id = connector->connector_type_id; |
||
2039 | out_resp->mm_width = connector->display_info.width_mm; |
||
2040 | out_resp->mm_height = connector->display_info.height_mm; |
||
2041 | out_resp->subpixel = connector->display_info.subpixel_order; |
||
2042 | out_resp->connection = connector->status; |
||
6084 | serge | 2043 | |
5060 | serge | 2044 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
5271 | serge | 2045 | encoder = drm_connector_get_encoder(connector); |
2046 | if (encoder) |
||
2047 | out_resp->encoder_id = encoder->base.id; |
||
1123 | serge | 2048 | else |
2049 | out_resp->encoder_id = 0; |
||
2050 | |||
2051 | /* |
||
2052 | * This ioctl is called twice, once to determine how much space is |
||
2053 | * needed, and the 2nd time to fill it. |
||
2054 | */ |
||
2055 | if ((out_resp->count_modes >= mode_count) && mode_count) { |
||
2056 | copied = 0; |
||
3031 | serge | 2057 | mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; |
1123 | serge | 2058 | list_for_each_entry(mode, &connector->modes, head) { |
4560 | Serge | 2059 | if (!drm_mode_expose_to_userspace(mode, file_priv)) |
2060 | continue; |
||
2061 | |||
6084 | serge | 2062 | drm_mode_convert_to_umode(&u_mode, mode); |
1123 | serge | 2063 | if (copy_to_user(mode_ptr + copied, |
2064 | &u_mode, sizeof(u_mode))) { |
||
2065 | ret = -EFAULT; |
||
2066 | goto out; |
||
2067 | } |
||
2068 | copied++; |
||
2069 | } |
||
2070 | } |
||
2071 | out_resp->count_modes = mode_count; |
||
2072 | |||
6084 | serge | 2073 | ret = get_properties(&connector->base, file_priv->atomic, |
2074 | (uint32_t __user *)(unsigned long)(out_resp->props_ptr), |
||
2075 | (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr), |
||
2076 | &out_resp->count_props); |
||
2077 | if (ret) |
||
2078 | goto out; |
||
1123 | serge | 2079 | |
2080 | if ((out_resp->count_encoders >= encoders_count) && encoders_count) { |
||
2081 | copied = 0; |
||
3031 | serge | 2082 | encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); |
1123 | serge | 2083 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
2084 | if (connector->encoder_ids[i] != 0) { |
||
2085 | if (put_user(connector->encoder_ids[i], |
||
2086 | encoder_ptr + copied)) { |
||
2087 | ret = -EFAULT; |
||
2088 | goto out; |
||
2089 | } |
||
2090 | copied++; |
||
2091 | } |
||
2092 | } |
||
2093 | } |
||
2094 | out_resp->count_encoders = encoders_count; |
||
2095 | |||
2096 | out: |
||
6084 | serge | 2097 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
2098 | |||
2099 | out_unlock: |
||
1123 | serge | 2100 | mutex_unlock(&dev->mode_config.mutex); |
3480 | Serge | 2101 | |
1123 | serge | 2102 | return ret; |
2103 | } |
||
2104 | |||
5271 | serge | 2105 | static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder) |
2106 | { |
||
2107 | struct drm_connector *connector; |
||
2108 | struct drm_device *dev = encoder->dev; |
||
2109 | bool uses_atomic = false; |
||
2110 | |||
2111 | /* For atomic drivers only state objects are synchronously updated and |
||
2112 | * protected by modeset locks, so check those first. */ |
||
6084 | serge | 2113 | drm_for_each_connector(connector, dev) { |
5271 | serge | 2114 | if (!connector->state) |
2115 | continue; |
||
2116 | |||
2117 | uses_atomic = true; |
||
2118 | |||
2119 | if (connector->state->best_encoder != encoder) |
||
2120 | continue; |
||
2121 | |||
2122 | return connector->state->crtc; |
||
2123 | } |
||
2124 | |||
2125 | /* Don't return stale data (e.g. pending async disable). */ |
||
2126 | if (uses_atomic) |
||
2127 | return NULL; |
||
2128 | |||
2129 | return encoder->crtc; |
||
2130 | } |
||
2131 | |||
5060 | serge | 2132 | /** |
2133 | * drm_mode_getencoder - get encoder configuration |
||
2134 | * @dev: drm device for the ioctl |
||
2135 | * @data: data pointer for the ioctl |
||
2136 | * @file_priv: drm file for the ioctl call |
||
2137 | * |
||
2138 | * Construct a encoder configuration structure to return to the user. |
||
2139 | * |
||
2140 | * Called by the user via ioctl. |
||
2141 | * |
||
2142 | * Returns: |
||
5271 | serge | 2143 | * Zero on success, negative errno on failure. |
5060 | serge | 2144 | */ |
1123 | serge | 2145 | int drm_mode_getencoder(struct drm_device *dev, void *data, |
2146 | struct drm_file *file_priv) |
||
2147 | { |
||
2148 | struct drm_mode_get_encoder *enc_resp = data; |
||
2149 | struct drm_encoder *encoder; |
||
5271 | serge | 2150 | struct drm_crtc *crtc; |
1123 | serge | 2151 | |
1963 | serge | 2152 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2153 | return -EINVAL; |
||
2154 | |||
5060 | serge | 2155 | encoder = drm_encoder_find(dev, enc_resp->encoder_id); |
5271 | serge | 2156 | if (!encoder) |
2157 | return -ENOENT; |
||
1123 | serge | 2158 | |
5271 | serge | 2159 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
2160 | crtc = drm_encoder_get_crtc(encoder); |
||
2161 | if (crtc) |
||
2162 | enc_resp->crtc_id = crtc->base.id; |
||
1123 | serge | 2163 | else |
2164 | enc_resp->crtc_id = 0; |
||
5271 | serge | 2165 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
2166 | |||
1123 | serge | 2167 | enc_resp->encoder_type = encoder->encoder_type; |
2168 | enc_resp->encoder_id = encoder->base.id; |
||
2169 | enc_resp->possible_crtcs = encoder->possible_crtcs; |
||
2170 | enc_resp->possible_clones = encoder->possible_clones; |
||
2171 | |||
5271 | serge | 2172 | return 0; |
1123 | serge | 2173 | } |
2174 | |||
2175 | /** |
||
5060 | serge | 2176 | * drm_mode_getplane_res - enumerate all plane resources |
3031 | serge | 2177 | * @dev: DRM device |
2178 | * @data: ioctl data |
||
2179 | * @file_priv: DRM file info |
||
2180 | * |
||
5060 | serge | 2181 | * Construct a list of plane ids to return to the user. |
2182 | * |
||
2183 | * Called by the user via ioctl. |
||
2184 | * |
||
2185 | * Returns: |
||
5271 | serge | 2186 | * Zero on success, negative errno on failure. |
3031 | serge | 2187 | */ |
2188 | int drm_mode_getplane_res(struct drm_device *dev, void *data, |
||
6084 | serge | 2189 | struct drm_file *file_priv) |
3031 | serge | 2190 | { |
2191 | struct drm_mode_get_plane_res *plane_resp = data; |
||
2192 | struct drm_mode_config *config; |
||
2193 | struct drm_plane *plane; |
||
2194 | uint32_t __user *plane_ptr; |
||
5271 | serge | 2195 | int copied = 0; |
5060 | serge | 2196 | unsigned num_planes; |
3031 | serge | 2197 | |
2198 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
||
2199 | return -EINVAL; |
||
2200 | |||
2201 | config = &dev->mode_config; |
||
2202 | |||
5060 | serge | 2203 | if (file_priv->universal_planes) |
2204 | num_planes = config->num_total_plane; |
||
2205 | else |
||
2206 | num_planes = config->num_overlay_plane; |
||
2207 | |||
3031 | serge | 2208 | /* |
2209 | * This ioctl is called twice, once to determine how much space is |
||
2210 | * needed, and the 2nd time to fill it. |
||
2211 | */ |
||
5060 | serge | 2212 | if (num_planes && |
2213 | (plane_resp->count_planes >= num_planes)) { |
||
3031 | serge | 2214 | plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; |
2215 | |||
5271 | serge | 2216 | /* Plane lists are invariant, no locking needed. */ |
6084 | serge | 2217 | drm_for_each_plane(plane, dev) { |
5060 | serge | 2218 | /* |
2219 | * Unless userspace set the 'universal planes' |
||
2220 | * capability bit, only advertise overlays. |
||
2221 | */ |
||
2222 | if (plane->type != DRM_PLANE_TYPE_OVERLAY && |
||
2223 | !file_priv->universal_planes) |
||
2224 | continue; |
||
2225 | |||
5271 | serge | 2226 | if (put_user(plane->base.id, plane_ptr + copied)) |
2227 | return -EFAULT; |
||
3031 | serge | 2228 | copied++; |
2229 | } |
||
2230 | } |
||
5060 | serge | 2231 | plane_resp->count_planes = num_planes; |
3031 | serge | 2232 | |
5271 | serge | 2233 | return 0; |
3031 | serge | 2234 | } |
2235 | |||
2236 | /** |
||
5060 | serge | 2237 | * drm_mode_getplane - get plane configuration |
3031 | serge | 2238 | * @dev: DRM device |
2239 | * @data: ioctl data |
||
2240 | * @file_priv: DRM file info |
||
2241 | * |
||
5060 | serge | 2242 | * Construct a plane configuration structure to return to the user. |
2243 | * |
||
2244 | * Called by the user via ioctl. |
||
2245 | * |
||
2246 | * Returns: |
||
5271 | serge | 2247 | * Zero on success, negative errno on failure. |
3031 | serge | 2248 | */ |
2249 | int drm_mode_getplane(struct drm_device *dev, void *data, |
||
6084 | serge | 2250 | struct drm_file *file_priv) |
3031 | serge | 2251 | { |
2252 | struct drm_mode_get_plane *plane_resp = data; |
||
2253 | struct drm_plane *plane; |
||
2254 | uint32_t __user *format_ptr; |
||
2255 | |||
2256 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
||
2257 | return -EINVAL; |
||
2258 | |||
5060 | serge | 2259 | plane = drm_plane_find(dev, plane_resp->plane_id); |
5271 | serge | 2260 | if (!plane) |
2261 | return -ENOENT; |
||
3031 | serge | 2262 | |
5271 | serge | 2263 | drm_modeset_lock(&plane->mutex, NULL); |
3031 | serge | 2264 | if (plane->crtc) |
2265 | plane_resp->crtc_id = plane->crtc->base.id; |
||
2266 | else |
||
2267 | plane_resp->crtc_id = 0; |
||
2268 | |||
2269 | if (plane->fb) |
||
2270 | plane_resp->fb_id = plane->fb->base.id; |
||
2271 | else |
||
2272 | plane_resp->fb_id = 0; |
||
5271 | serge | 2273 | drm_modeset_unlock(&plane->mutex); |
3031 | serge | 2274 | |
2275 | plane_resp->plane_id = plane->base.id; |
||
2276 | plane_resp->possible_crtcs = plane->possible_crtcs; |
||
4075 | Serge | 2277 | plane_resp->gamma_size = 0; |
3031 | serge | 2278 | |
2279 | /* |
||
2280 | * This ioctl is called twice, once to determine how much space is |
||
2281 | * needed, and the 2nd time to fill it. |
||
2282 | */ |
||
2283 | if (plane->format_count && |
||
2284 | (plane_resp->count_format_types >= plane->format_count)) { |
||
2285 | format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; |
||
2286 | if (copy_to_user(format_ptr, |
||
2287 | plane->format_types, |
||
2288 | sizeof(uint32_t) * plane->format_count)) { |
||
5271 | serge | 2289 | return -EFAULT; |
3031 | serge | 2290 | } |
2291 | } |
||
2292 | plane_resp->count_format_types = plane->format_count; |
||
2293 | |||
5271 | serge | 2294 | return 0; |
3031 | serge | 2295 | } |
6084 | serge | 2296 | #endif |
3031 | serge | 2297 | |
6084 | serge | 2298 | /** |
2299 | * drm_plane_check_pixel_format - Check if the plane supports the pixel format |
||
2300 | * @plane: plane to check for format support |
||
2301 | * @format: the pixel format |
||
2302 | * |
||
2303 | * Returns: |
||
2304 | * Zero of @plane has @format in its list of supported pixel formats, -EINVAL |
||
2305 | * otherwise. |
||
2306 | */ |
||
2307 | int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format) |
||
2308 | { |
||
2309 | unsigned int i; |
||
2310 | |||
2311 | for (i = 0; i < plane->format_count; i++) { |
||
2312 | if (format == plane->format_types[i]) |
||
2313 | return 0; |
||
2314 | } |
||
2315 | |||
2316 | return -EINVAL; |
||
2317 | } |
||
2318 | |||
2319 | static int check_src_coords(uint32_t src_x, uint32_t src_y, |
||
2320 | uint32_t src_w, uint32_t src_h, |
||
2321 | const struct drm_framebuffer *fb) |
||
2322 | { |
||
2323 | unsigned int fb_width, fb_height; |
||
2324 | |||
2325 | fb_width = fb->width << 16; |
||
2326 | fb_height = fb->height << 16; |
||
2327 | |||
2328 | /* Make sure source coordinates are inside the fb. */ |
||
2329 | if (src_w > fb_width || |
||
2330 | src_x > fb_width - src_w || |
||
2331 | src_h > fb_height || |
||
2332 | src_y > fb_height - src_h) { |
||
2333 | DRM_DEBUG_KMS("Invalid source coordinates " |
||
2334 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", |
||
2335 | src_w >> 16, ((src_w & 0xffff) * 15625) >> 10, |
||
2336 | src_h >> 16, ((src_h & 0xffff) * 15625) >> 10, |
||
2337 | src_x >> 16, ((src_x & 0xffff) * 15625) >> 10, |
||
2338 | src_y >> 16, ((src_y & 0xffff) * 15625) >> 10); |
||
2339 | return -ENOSPC; |
||
2340 | } |
||
2341 | |||
2342 | return 0; |
||
2343 | } |
||
2344 | |||
5060 | serge | 2345 | /* |
2346 | * setplane_internal - setplane handler for internal callers |
||
3031 | serge | 2347 | * |
5060 | serge | 2348 | * Note that we assume an extra reference has already been taken on fb. If the |
2349 | * update fails, this reference will be dropped before return; if it succeeds, |
||
2350 | * the previous framebuffer (if any) will be unreferenced instead. |
||
2351 | * |
||
2352 | * src_{x,y,w,h} are provided in 16.16 fixed point format |
||
3031 | serge | 2353 | */ |
5271 | serge | 2354 | static int __setplane_internal(struct drm_plane *plane, |
6084 | serge | 2355 | struct drm_crtc *crtc, |
2356 | struct drm_framebuffer *fb, |
||
2357 | int32_t crtc_x, int32_t crtc_y, |
||
2358 | uint32_t crtc_w, uint32_t crtc_h, |
||
2359 | /* src_{x,y,w,h} values are 16.16 fixed point */ |
||
2360 | uint32_t src_x, uint32_t src_y, |
||
2361 | uint32_t src_w, uint32_t src_h) |
||
3031 | serge | 2362 | { |
2363 | int ret = 0; |
||
2364 | |||
2365 | /* No fb means shut it down */ |
||
5060 | serge | 2366 | if (!fb) { |
5271 | serge | 2367 | plane->old_fb = plane->fb; |
5060 | serge | 2368 | ret = plane->funcs->disable_plane(plane); |
2369 | if (!ret) { |
||
6084 | serge | 2370 | plane->crtc = NULL; |
2371 | plane->fb = NULL; |
||
5060 | serge | 2372 | } else { |
5271 | serge | 2373 | plane->old_fb = NULL; |
5060 | serge | 2374 | } |
3031 | serge | 2375 | goto out; |
2376 | } |
||
2377 | |||
5060 | serge | 2378 | /* Check whether this plane is usable on this CRTC */ |
2379 | if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) { |
||
2380 | DRM_DEBUG_KMS("Invalid crtc for plane\n"); |
||
2381 | ret = -EINVAL; |
||
3031 | serge | 2382 | goto out; |
2383 | } |
||
2384 | |||
2385 | /* Check whether this plane supports the fb pixel format. */ |
||
6084 | serge | 2386 | ret = drm_plane_check_pixel_format(plane, fb->pixel_format); |
2387 | if (ret) { |
||
4075 | Serge | 2388 | DRM_DEBUG_KMS("Invalid pixel format %s\n", |
2389 | drm_get_format_name(fb->pixel_format)); |
||
3031 | serge | 2390 | goto out; |
2391 | } |
||
2392 | |||
6084 | serge | 2393 | /* Give drivers some help against integer overflows */ |
2394 | if (crtc_w > INT_MAX || |
||
2395 | crtc_x > INT_MAX - (int32_t) crtc_w || |
||
2396 | crtc_h > INT_MAX || |
||
2397 | crtc_y > INT_MAX - (int32_t) crtc_h) { |
||
2398 | DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", |
||
2399 | crtc_w, crtc_h, crtc_x, crtc_y); |
||
2400 | ret = -ERANGE; |
||
3031 | serge | 2401 | goto out; |
2402 | } |
||
2403 | |||
6084 | serge | 2404 | ret = check_src_coords(src_x, src_y, src_w, src_h, fb); |
2405 | if (ret) |
||
2406 | goto out; |
||
2407 | |||
5271 | serge | 2408 | plane->old_fb = plane->fb; |
3031 | serge | 2409 | ret = plane->funcs->update_plane(plane, crtc, fb, |
5060 | serge | 2410 | crtc_x, crtc_y, crtc_w, crtc_h, |
2411 | src_x, src_y, src_w, src_h); |
||
3031 | serge | 2412 | if (!ret) { |
2413 | plane->crtc = crtc; |
||
2414 | plane->fb = fb; |
||
3480 | Serge | 2415 | fb = NULL; |
5060 | serge | 2416 | } else { |
5271 | serge | 2417 | plane->old_fb = NULL; |
3031 | serge | 2418 | } |
2419 | |||
2420 | out: |
||
3480 | Serge | 2421 | if (fb) |
2422 | drm_framebuffer_unreference(fb); |
||
5271 | serge | 2423 | if (plane->old_fb) |
2424 | drm_framebuffer_unreference(plane->old_fb); |
||
2425 | plane->old_fb = NULL; |
||
3031 | serge | 2426 | |
2427 | return ret; |
||
5271 | serge | 2428 | } |
5060 | serge | 2429 | |
5271 | serge | 2430 | static int setplane_internal(struct drm_plane *plane, |
2431 | struct drm_crtc *crtc, |
||
2432 | struct drm_framebuffer *fb, |
||
2433 | int32_t crtc_x, int32_t crtc_y, |
||
2434 | uint32_t crtc_w, uint32_t crtc_h, |
||
2435 | /* src_{x,y,w,h} values are 16.16 fixed point */ |
||
2436 | uint32_t src_x, uint32_t src_y, |
||
2437 | uint32_t src_w, uint32_t src_h) |
||
2438 | { |
||
2439 | int ret; |
||
2440 | |||
2441 | drm_modeset_lock_all(plane->dev); |
||
2442 | ret = __setplane_internal(plane, crtc, fb, |
||
2443 | crtc_x, crtc_y, crtc_w, crtc_h, |
||
2444 | src_x, src_y, src_w, src_h); |
||
2445 | drm_modeset_unlock_all(plane->dev); |
||
2446 | |||
2447 | return ret; |
||
3031 | serge | 2448 | } |
5060 | serge | 2449 | |
2450 | /** |
||
2451 | * drm_mode_setplane - configure a plane's configuration |
||
2452 | * @dev: DRM device |
||
2453 | * @data: ioctl data* |
||
2454 | * @file_priv: DRM file info |
||
2455 | * |
||
2456 | * Set plane configuration, including placement, fb, scaling, and other factors. |
||
2457 | * Or pass a NULL fb to disable (planes may be disabled without providing a |
||
2458 | * valid crtc). |
||
2459 | * |
||
2460 | * Returns: |
||
5271 | serge | 2461 | * Zero on success, negative errno on failure. |
5060 | serge | 2462 | */ |
2463 | int drm_mode_setplane(struct drm_device *dev, void *data, |
||
2464 | struct drm_file *file_priv) |
||
2465 | { |
||
2466 | struct drm_mode_set_plane *plane_req = data; |
||
2467 | struct drm_plane *plane; |
||
2468 | struct drm_crtc *crtc = NULL; |
||
2469 | struct drm_framebuffer *fb = NULL; |
||
2470 | |||
2471 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
||
2472 | return -EINVAL; |
||
2473 | |||
2474 | /* |
||
2475 | * First, find the plane, crtc, and fb objects. If not available, |
||
2476 | * we don't bother to call the driver. |
||
2477 | */ |
||
5271 | serge | 2478 | plane = drm_plane_find(dev, plane_req->plane_id); |
2479 | if (!plane) { |
||
5060 | serge | 2480 | DRM_DEBUG_KMS("Unknown plane ID %d\n", |
2481 | plane_req->plane_id); |
||
2482 | return -ENOENT; |
||
2483 | } |
||
2484 | |||
2485 | if (plane_req->fb_id) { |
||
2486 | fb = drm_framebuffer_lookup(dev, plane_req->fb_id); |
||
2487 | if (!fb) { |
||
2488 | DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", |
||
2489 | plane_req->fb_id); |
||
2490 | return -ENOENT; |
||
2491 | } |
||
2492 | |||
5271 | serge | 2493 | crtc = drm_crtc_find(dev, plane_req->crtc_id); |
2494 | if (!crtc) { |
||
5060 | serge | 2495 | DRM_DEBUG_KMS("Unknown crtc ID %d\n", |
2496 | plane_req->crtc_id); |
||
2497 | return -ENOENT; |
||
2498 | } |
||
2499 | } |
||
2500 | |||
2501 | /* |
||
2502 | * setplane_internal will take care of deref'ing either the old or new |
||
2503 | * framebuffer depending on success. |
||
2504 | */ |
||
2505 | return setplane_internal(plane, crtc, fb, |
||
2506 | plane_req->crtc_x, plane_req->crtc_y, |
||
2507 | plane_req->crtc_w, plane_req->crtc_h, |
||
2508 | plane_req->src_x, plane_req->src_y, |
||
2509 | plane_req->src_w, plane_req->src_h); |
||
2510 | } |
||
3031 | serge | 2511 | |
2512 | /** |
||
3480 | Serge | 2513 | * drm_mode_set_config_internal - helper to call ->set_config |
2514 | * @set: modeset config to set |
||
2515 | * |
||
2516 | * This is a little helper to wrap internal calls to the ->set_config driver |
||
2517 | * interface. The only thing it adds is correct refcounting dance. |
||
5060 | serge | 2518 | * |
2519 | * Returns: |
||
5271 | serge | 2520 | * Zero on success, negative errno on failure. |
3480 | Serge | 2521 | */ |
2522 | int drm_mode_set_config_internal(struct drm_mode_set *set) |
||
2523 | { |
||
2524 | struct drm_crtc *crtc = set->crtc; |
||
4075 | Serge | 2525 | struct drm_framebuffer *fb; |
2526 | struct drm_crtc *tmp; |
||
3480 | Serge | 2527 | int ret; |
2528 | |||
4075 | Serge | 2529 | /* |
2530 | * NOTE: ->set_config can also disable other crtcs (if we steal all |
||
2531 | * connectors from it), hence we need to refcount the fbs across all |
||
2532 | * crtcs. Atomic modeset will have saner semantics ... |
||
2533 | */ |
||
6084 | serge | 2534 | drm_for_each_crtc(tmp, crtc->dev) |
5271 | serge | 2535 | tmp->primary->old_fb = tmp->primary->fb; |
4075 | Serge | 2536 | |
3480 | Serge | 2537 | fb = set->fb; |
2538 | |||
2539 | ret = crtc->funcs->set_config(set); |
||
2540 | if (ret == 0) { |
||
5060 | serge | 2541 | crtc->primary->crtc = crtc; |
2542 | crtc->primary->fb = fb; |
||
3480 | Serge | 2543 | } |
2544 | |||
6084 | serge | 2545 | drm_for_each_crtc(tmp, crtc->dev) { |
5060 | serge | 2546 | if (tmp->primary->fb) |
2547 | drm_framebuffer_reference(tmp->primary->fb); |
||
6283 | serge | 2548 | if (tmp->primary->old_fb) |
2549 | drm_framebuffer_unreference(tmp->primary->old_fb); |
||
2550 | tmp->primary->old_fb = NULL; |
||
4075 | Serge | 2551 | } |
2552 | |||
3480 | Serge | 2553 | return ret; |
2554 | } |
||
2555 | EXPORT_SYMBOL(drm_mode_set_config_internal); |
||
2556 | |||
5060 | serge | 2557 | /** |
6084 | serge | 2558 | * drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode |
2559 | * @mode: mode to query |
||
2560 | * @hdisplay: hdisplay value to fill in |
||
2561 | * @vdisplay: vdisplay value to fill in |
||
2562 | * |
||
2563 | * The vdisplay value will be doubled if the specified mode is a stereo mode of |
||
2564 | * the appropriate layout. |
||
2565 | */ |
||
2566 | void drm_crtc_get_hv_timing(const struct drm_display_mode *mode, |
||
2567 | int *hdisplay, int *vdisplay) |
||
2568 | { |
||
2569 | struct drm_display_mode adjusted; |
||
2570 | |||
2571 | drm_mode_copy(&adjusted, mode); |
||
2572 | drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY); |
||
2573 | *hdisplay = adjusted.crtc_hdisplay; |
||
2574 | *vdisplay = adjusted.crtc_vdisplay; |
||
2575 | } |
||
2576 | EXPORT_SYMBOL(drm_crtc_get_hv_timing); |
||
2577 | |||
2578 | /** |
||
5060 | serge | 2579 | * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the |
2580 | * CRTC viewport |
||
2581 | * @crtc: CRTC that framebuffer will be displayed on |
||
2582 | * @x: x panning |
||
2583 | * @y: y panning |
||
2584 | * @mode: mode that framebuffer will be displayed under |
||
2585 | * @fb: framebuffer to check size of |
||
4560 | Serge | 2586 | */ |
5060 | serge | 2587 | int drm_crtc_check_viewport(const struct drm_crtc *crtc, |
6084 | serge | 2588 | int x, int y, |
2589 | const struct drm_display_mode *mode, |
||
2590 | const struct drm_framebuffer *fb) |
||
4560 | Serge | 2591 | |
2592 | { |
||
2593 | int hdisplay, vdisplay; |
||
2594 | |||
6084 | serge | 2595 | drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay); |
4560 | Serge | 2596 | |
6084 | serge | 2597 | if (crtc->state && |
2598 | crtc->primary->state->rotation & (BIT(DRM_ROTATE_90) | |
||
2599 | BIT(DRM_ROTATE_270))) |
||
4560 | Serge | 2600 | swap(hdisplay, vdisplay); |
2601 | |||
6084 | serge | 2602 | return check_src_coords(x << 16, y << 16, |
2603 | hdisplay << 16, vdisplay << 16, fb); |
||
4560 | Serge | 2604 | } |
5060 | serge | 2605 | EXPORT_SYMBOL(drm_crtc_check_viewport); |
4560 | Serge | 2606 | |
6084 | serge | 2607 | #if 0 |
3480 | Serge | 2608 | /** |
1123 | serge | 2609 | * drm_mode_setcrtc - set CRTC configuration |
3480 | Serge | 2610 | * @dev: drm device for the ioctl |
2611 | * @data: data pointer for the ioctl |
||
2612 | * @file_priv: drm file for the ioctl call |
||
1123 | serge | 2613 | * |
2614 | * Build a new CRTC configuration based on user request. |
||
2615 | * |
||
2616 | * Called by the user via ioctl. |
||
2617 | * |
||
5060 | serge | 2618 | * Returns: |
5271 | serge | 2619 | * Zero on success, negative errno on failure. |
1123 | serge | 2620 | */ |
2621 | int drm_mode_setcrtc(struct drm_device *dev, void *data, |
||
2622 | struct drm_file *file_priv) |
||
2623 | { |
||
2624 | struct drm_mode_config *config = &dev->mode_config; |
||
2625 | struct drm_mode_crtc *crtc_req = data; |
||
3031 | serge | 2626 | struct drm_crtc *crtc; |
1123 | serge | 2627 | struct drm_connector **connector_set = NULL, *connector; |
2628 | struct drm_framebuffer *fb = NULL; |
||
2629 | struct drm_display_mode *mode = NULL; |
||
2630 | struct drm_mode_set set; |
||
2631 | uint32_t __user *set_connectors_ptr; |
||
3031 | serge | 2632 | int ret; |
1123 | serge | 2633 | int i; |
2634 | |||
1963 | serge | 2635 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2636 | return -EINVAL; |
||
2637 | |||
6084 | serge | 2638 | /* |
2639 | * Universal plane src offsets are only 16.16, prevent havoc for |
||
2640 | * drivers using universal plane code internally. |
||
2641 | */ |
||
2642 | if (crtc_req->x & 0xffff0000 || crtc_req->y & 0xffff0000) |
||
3031 | serge | 2643 | return -ERANGE; |
2644 | |||
3480 | Serge | 2645 | drm_modeset_lock_all(dev); |
5060 | serge | 2646 | crtc = drm_crtc_find(dev, crtc_req->crtc_id); |
2647 | if (!crtc) { |
||
1179 | serge | 2648 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
4560 | Serge | 2649 | ret = -ENOENT; |
1123 | serge | 2650 | goto out; |
2651 | } |
||
1963 | serge | 2652 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
1123 | serge | 2653 | |
2654 | if (crtc_req->mode_valid) { |
||
2655 | /* If we have a mode we need a framebuffer. */ |
||
2656 | /* If we pass -1, set the mode with the currently bound fb */ |
||
2657 | if (crtc_req->fb_id == -1) { |
||
5060 | serge | 2658 | if (!crtc->primary->fb) { |
3031 | serge | 2659 | DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); |
2660 | ret = -EINVAL; |
||
2661 | goto out; |
||
2662 | } |
||
5060 | serge | 2663 | fb = crtc->primary->fb; |
3480 | Serge | 2664 | /* Make refcounting symmetric with the lookup path. */ |
2665 | drm_framebuffer_reference(fb); |
||
1123 | serge | 2666 | } else { |
3480 | Serge | 2667 | fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); |
2668 | if (!fb) { |
||
1179 | serge | 2669 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
2670 | crtc_req->fb_id); |
||
4560 | Serge | 2671 | ret = -ENOENT; |
1123 | serge | 2672 | goto out; |
2673 | } |
||
2674 | } |
||
2675 | |||
2676 | mode = drm_mode_create(dev); |
||
3031 | serge | 2677 | if (!mode) { |
2678 | ret = -ENOMEM; |
||
2679 | goto out; |
||
2680 | } |
||
2681 | |||
6084 | serge | 2682 | ret = drm_mode_convert_umode(mode, &crtc_req->mode); |
3031 | serge | 2683 | if (ret) { |
2684 | DRM_DEBUG_KMS("Invalid mode\n"); |
||
2685 | goto out; |
||
2686 | } |
||
2687 | |||
1123 | serge | 2688 | drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); |
3031 | serge | 2689 | |
6084 | serge | 2690 | /* |
2691 | * Check whether the primary plane supports the fb pixel format. |
||
2692 | * Drivers not implementing the universal planes API use a |
||
2693 | * default formats list provided by the DRM core which doesn't |
||
2694 | * match real hardware capabilities. Skip the check in that |
||
2695 | * case. |
||
2696 | */ |
||
2697 | if (!crtc->primary->format_default) { |
||
2698 | ret = drm_plane_check_pixel_format(crtc->primary, |
||
2699 | fb->pixel_format); |
||
2700 | if (ret) { |
||
2701 | DRM_DEBUG_KMS("Invalid pixel format %s\n", |
||
2702 | drm_get_format_name(fb->pixel_format)); |
||
2703 | goto out; |
||
2704 | } |
||
2705 | } |
||
2706 | |||
4560 | Serge | 2707 | ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, |
2708 | mode, fb); |
||
2709 | if (ret) |
||
2710 | goto out; |
||
3031 | serge | 2711 | |
1123 | serge | 2712 | } |
2713 | |||
2714 | if (crtc_req->count_connectors == 0 && mode) { |
||
1179 | serge | 2715 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
1123 | serge | 2716 | ret = -EINVAL; |
2717 | goto out; |
||
2718 | } |
||
2719 | |||
1179 | serge | 2720 | if (crtc_req->count_connectors > 0 && (!mode || !fb)) { |
2721 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
||
1123 | serge | 2722 | crtc_req->count_connectors); |
2723 | ret = -EINVAL; |
||
2724 | goto out; |
||
2725 | } |
||
2726 | |||
2727 | if (crtc_req->count_connectors > 0) { |
||
2728 | u32 out_id; |
||
2729 | |||
2730 | /* Avoid unbounded kernel memory allocation */ |
||
2731 | if (crtc_req->count_connectors > config->num_connector) { |
||
2732 | ret = -EINVAL; |
||
2733 | goto out; |
||
2734 | } |
||
2735 | |||
6084 | serge | 2736 | connector_set = kmalloc_array(crtc_req->count_connectors, |
2737 | sizeof(struct drm_connector *), |
||
2738 | GFP_KERNEL); |
||
1123 | serge | 2739 | if (!connector_set) { |
2740 | ret = -ENOMEM; |
||
2741 | goto out; |
||
2742 | } |
||
2743 | |||
2744 | for (i = 0; i < crtc_req->count_connectors; i++) { |
||
3031 | serge | 2745 | set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; |
6084 | serge | 2746 | // if (get_user(out_id, &set_connectors_ptr[i])) { |
2747 | // ret = -EFAULT; |
||
2748 | // goto out; |
||
2749 | // } |
||
1123 | serge | 2750 | |
5060 | serge | 2751 | connector = drm_connector_find(dev, out_id); |
2752 | if (!connector) { |
||
1179 | serge | 2753 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
2754 | out_id); |
||
4560 | Serge | 2755 | ret = -ENOENT; |
1123 | serge | 2756 | goto out; |
2757 | } |
||
1963 | serge | 2758 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
2759 | connector->base.id, |
||
5060 | serge | 2760 | connector->name); |
1123 | serge | 2761 | |
2762 | connector_set[i] = connector; |
||
2763 | } |
||
2764 | } |
||
2765 | |||
2766 | set.crtc = crtc; |
||
2767 | set.x = crtc_req->x; |
||
2768 | set.y = crtc_req->y; |
||
2769 | set.mode = mode; |
||
2770 | set.connectors = connector_set; |
||
2771 | set.num_connectors = crtc_req->count_connectors; |
||
1179 | serge | 2772 | set.fb = fb; |
3480 | Serge | 2773 | ret = drm_mode_set_config_internal(&set); |
1123 | serge | 2774 | |
2775 | out: |
||
3480 | Serge | 2776 | if (fb) |
2777 | drm_framebuffer_unreference(fb); |
||
2778 | |||
1123 | serge | 2779 | kfree(connector_set); |
3031 | serge | 2780 | drm_mode_destroy(dev, mode); |
3480 | Serge | 2781 | drm_modeset_unlock_all(dev); |
1123 | serge | 2782 | return ret; |
2783 | } |
||
2784 | |||
4075 | Serge | 2785 | static int drm_mode_cursor_common(struct drm_device *dev, |
2786 | struct drm_mode_cursor2 *req, |
||
2787 | struct drm_file *file_priv) |
||
1123 | serge | 2788 | { |
2789 | struct drm_crtc *crtc; |
||
2790 | int ret = 0; |
||
2791 | |||
1963 | serge | 2792 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2793 | return -EINVAL; |
||
2794 | |||
3031 | serge | 2795 | if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) |
1123 | serge | 2796 | return -EINVAL; |
2797 | |||
5060 | serge | 2798 | crtc = drm_crtc_find(dev, req->crtc_id); |
2799 | if (!crtc) { |
||
1179 | serge | 2800 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); |
4560 | Serge | 2801 | return -ENOENT; |
1123 | serge | 2802 | } |
2803 | |||
5060 | serge | 2804 | /* |
2805 | * If this crtc has a universal cursor plane, call that plane's update |
||
2806 | * handler rather than using legacy cursor handlers. |
||
2807 | */ |
||
5271 | serge | 2808 | drm_modeset_lock_crtc(crtc, crtc->cursor); |
2809 | if (crtc->cursor) { |
||
2810 | ret = drm_mode_cursor_universal(crtc, req, file_priv); |
||
2811 | goto out; |
||
2812 | } |
||
5060 | serge | 2813 | |
1123 | serge | 2814 | if (req->flags & DRM_MODE_CURSOR_BO) { |
4075 | Serge | 2815 | if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { |
1123 | serge | 2816 | ret = -ENXIO; |
2817 | goto out; |
||
2818 | } |
||
2819 | /* Turns off the cursor if handle is 0 */ |
||
4075 | Serge | 2820 | if (crtc->funcs->cursor_set2) |
2821 | ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, |
||
2822 | req->width, req->height, req->hot_x, req->hot_y); |
||
2823 | else |
||
6084 | serge | 2824 | ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, |
2825 | req->width, req->height); |
||
1123 | serge | 2826 | } |
2827 | |||
2828 | if (req->flags & DRM_MODE_CURSOR_MOVE) { |
||
2829 | if (crtc->funcs->cursor_move) { |
||
2830 | ret = crtc->funcs->cursor_move(crtc, req->x, req->y); |
||
2831 | } else { |
||
2832 | ret = -EFAULT; |
||
2833 | goto out; |
||
2834 | } |
||
2835 | } |
||
2836 | out: |
||
5271 | serge | 2837 | drm_modeset_unlock_crtc(crtc); |
3480 | Serge | 2838 | |
1123 | serge | 2839 | return ret; |
4075 | Serge | 2840 | |
1123 | serge | 2841 | } |
5060 | serge | 2842 | |
2843 | |||
2844 | /** |
||
2845 | * drm_mode_cursor_ioctl - set CRTC's cursor configuration |
||
2846 | * @dev: drm device for the ioctl |
||
2847 | * @data: data pointer for the ioctl |
||
2848 | * @file_priv: drm file for the ioctl call |
||
2849 | * |
||
2850 | * Set the cursor configuration based on user request. |
||
2851 | * |
||
2852 | * Called by the user via ioctl. |
||
2853 | * |
||
2854 | * Returns: |
||
5271 | serge | 2855 | * Zero on success, negative errno on failure. |
5060 | serge | 2856 | */ |
4075 | Serge | 2857 | int drm_mode_cursor_ioctl(struct drm_device *dev, |
6084 | serge | 2858 | void *data, struct drm_file *file_priv) |
4075 | Serge | 2859 | { |
2860 | struct drm_mode_cursor *req = data; |
||
2861 | struct drm_mode_cursor2 new_req; |
||
2862 | |||
2863 | memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); |
||
2864 | new_req.hot_x = new_req.hot_y = 0; |
||
2865 | |||
2866 | return drm_mode_cursor_common(dev, &new_req, file_priv); |
||
2867 | } |
||
2868 | |||
5060 | serge | 2869 | /** |
2870 | * drm_mode_cursor2_ioctl - set CRTC's cursor configuration |
||
2871 | * @dev: drm device for the ioctl |
||
2872 | * @data: data pointer for the ioctl |
||
2873 | * @file_priv: drm file for the ioctl call |
||
2874 | * |
||
2875 | * Set the cursor configuration based on user request. This implements the 2nd |
||
2876 | * version of the cursor ioctl, which allows userspace to additionally specify |
||
2877 | * the hotspot of the pointer. |
||
2878 | * |
||
2879 | * Called by the user via ioctl. |
||
2880 | * |
||
2881 | * Returns: |
||
5271 | serge | 2882 | * Zero on success, negative errno on failure. |
5060 | serge | 2883 | */ |
4075 | Serge | 2884 | int drm_mode_cursor2_ioctl(struct drm_device *dev, |
2885 | void *data, struct drm_file *file_priv) |
||
2886 | { |
||
2887 | struct drm_mode_cursor2 *req = data; |
||
6084 | serge | 2888 | |
4075 | Serge | 2889 | return drm_mode_cursor_common(dev, req, file_priv); |
2890 | } |
||
3031 | serge | 2891 | #endif |
4560 | Serge | 2892 | |
5060 | serge | 2893 | /** |
2894 | * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description |
||
2895 | * @bpp: bits per pixels |
||
2896 | * @depth: bit depth per pixel |
||
2897 | * |
||
2898 | * Computes a drm fourcc pixel format code for the given @bpp/@depth values. |
||
2899 | * Useful in fbdev emulation code, since that deals in those values. |
||
2900 | */ |
||
3031 | serge | 2901 | uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) |
2902 | { |
||
2903 | uint32_t fmt; |
||
1123 | serge | 2904 | |
3031 | serge | 2905 | switch (bpp) { |
2906 | case 8: |
||
3480 | Serge | 2907 | fmt = DRM_FORMAT_C8; |
3031 | serge | 2908 | break; |
2909 | case 16: |
||
2910 | if (depth == 15) |
||
2911 | fmt = DRM_FORMAT_XRGB1555; |
||
2912 | else |
||
2913 | fmt = DRM_FORMAT_RGB565; |
||
2914 | break; |
||
2915 | case 24: |
||
2916 | fmt = DRM_FORMAT_RGB888; |
||
2917 | break; |
||
2918 | case 32: |
||
2919 | if (depth == 24) |
||
2920 | fmt = DRM_FORMAT_XRGB8888; |
||
2921 | else if (depth == 30) |
||
2922 | fmt = DRM_FORMAT_XRGB2101010; |
||
2923 | else |
||
2924 | fmt = DRM_FORMAT_ARGB8888; |
||
2925 | break; |
||
2926 | default: |
||
2927 | DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); |
||
2928 | fmt = DRM_FORMAT_XRGB8888; |
||
2929 | break; |
||
2930 | } |
||
2931 | |||
2932 | return fmt; |
||
2933 | } |
||
2934 | EXPORT_SYMBOL(drm_mode_legacy_fb_format); |
||
2935 | #if 0 |
||
1123 | serge | 2936 | /** |
2937 | * drm_mode_addfb - add an FB to the graphics configuration |
||
3480 | Serge | 2938 | * @dev: drm device for the ioctl |
2939 | * @data: data pointer for the ioctl |
||
2940 | * @file_priv: drm file for the ioctl call |
||
1123 | serge | 2941 | * |
5060 | serge | 2942 | * Add a new FB to the specified CRTC, given a user request. This is the |
5271 | serge | 2943 | * original addfb ioctl which only supported RGB formats. |
1123 | serge | 2944 | * |
2945 | * Called by the user via ioctl. |
||
2946 | * |
||
5060 | serge | 2947 | * Returns: |
5271 | serge | 2948 | * Zero on success, negative errno on failure. |
1123 | serge | 2949 | */ |
2950 | int drm_mode_addfb(struct drm_device *dev, |
||
2951 | void *data, struct drm_file *file_priv) |
||
2952 | { |
||
3031 | serge | 2953 | struct drm_mode_fb_cmd *or = data; |
2954 | struct drm_mode_fb_cmd2 r = {}; |
||
5271 | serge | 2955 | int ret; |
1123 | serge | 2956 | |
5271 | serge | 2957 | /* convert to new format and call new ioctl */ |
3031 | serge | 2958 | r.fb_id = or->fb_id; |
2959 | r.width = or->width; |
||
2960 | r.height = or->height; |
||
2961 | r.pitches[0] = or->pitch; |
||
2962 | r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); |
||
2963 | r.handles[0] = or->handle; |
||
2964 | |||
5271 | serge | 2965 | ret = drm_mode_addfb2(dev, &r, file_priv); |
2966 | if (ret) |
||
2967 | return ret; |
||
1963 | serge | 2968 | |
5271 | serge | 2969 | or->fb_id = r.fb_id; |
3031 | serge | 2970 | |
5271 | serge | 2971 | return 0; |
3031 | serge | 2972 | } |
2973 | |||
2974 | static int format_check(const struct drm_mode_fb_cmd2 *r) |
||
2975 | { |
||
2976 | uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; |
||
2977 | |||
2978 | switch (format) { |
||
2979 | case DRM_FORMAT_C8: |
||
2980 | case DRM_FORMAT_RGB332: |
||
2981 | case DRM_FORMAT_BGR233: |
||
2982 | case DRM_FORMAT_XRGB4444: |
||
2983 | case DRM_FORMAT_XBGR4444: |
||
2984 | case DRM_FORMAT_RGBX4444: |
||
2985 | case DRM_FORMAT_BGRX4444: |
||
2986 | case DRM_FORMAT_ARGB4444: |
||
2987 | case DRM_FORMAT_ABGR4444: |
||
2988 | case DRM_FORMAT_RGBA4444: |
||
2989 | case DRM_FORMAT_BGRA4444: |
||
2990 | case DRM_FORMAT_XRGB1555: |
||
2991 | case DRM_FORMAT_XBGR1555: |
||
2992 | case DRM_FORMAT_RGBX5551: |
||
2993 | case DRM_FORMAT_BGRX5551: |
||
2994 | case DRM_FORMAT_ARGB1555: |
||
2995 | case DRM_FORMAT_ABGR1555: |
||
2996 | case DRM_FORMAT_RGBA5551: |
||
2997 | case DRM_FORMAT_BGRA5551: |
||
2998 | case DRM_FORMAT_RGB565: |
||
2999 | case DRM_FORMAT_BGR565: |
||
3000 | case DRM_FORMAT_RGB888: |
||
3001 | case DRM_FORMAT_BGR888: |
||
3002 | case DRM_FORMAT_XRGB8888: |
||
3003 | case DRM_FORMAT_XBGR8888: |
||
3004 | case DRM_FORMAT_RGBX8888: |
||
3005 | case DRM_FORMAT_BGRX8888: |
||
3006 | case DRM_FORMAT_ARGB8888: |
||
3007 | case DRM_FORMAT_ABGR8888: |
||
3008 | case DRM_FORMAT_RGBA8888: |
||
3009 | case DRM_FORMAT_BGRA8888: |
||
3010 | case DRM_FORMAT_XRGB2101010: |
||
3011 | case DRM_FORMAT_XBGR2101010: |
||
3012 | case DRM_FORMAT_RGBX1010102: |
||
3013 | case DRM_FORMAT_BGRX1010102: |
||
3014 | case DRM_FORMAT_ARGB2101010: |
||
3015 | case DRM_FORMAT_ABGR2101010: |
||
3016 | case DRM_FORMAT_RGBA1010102: |
||
3017 | case DRM_FORMAT_BGRA1010102: |
||
3018 | case DRM_FORMAT_YUYV: |
||
3019 | case DRM_FORMAT_YVYU: |
||
3020 | case DRM_FORMAT_UYVY: |
||
3021 | case DRM_FORMAT_VYUY: |
||
3022 | case DRM_FORMAT_AYUV: |
||
3023 | case DRM_FORMAT_NV12: |
||
3024 | case DRM_FORMAT_NV21: |
||
3025 | case DRM_FORMAT_NV16: |
||
3026 | case DRM_FORMAT_NV61: |
||
3027 | case DRM_FORMAT_NV24: |
||
3028 | case DRM_FORMAT_NV42: |
||
3029 | case DRM_FORMAT_YUV410: |
||
3030 | case DRM_FORMAT_YVU410: |
||
3031 | case DRM_FORMAT_YUV411: |
||
3032 | case DRM_FORMAT_YVU411: |
||
3033 | case DRM_FORMAT_YUV420: |
||
3034 | case DRM_FORMAT_YVU420: |
||
3035 | case DRM_FORMAT_YUV422: |
||
3036 | case DRM_FORMAT_YVU422: |
||
3037 | case DRM_FORMAT_YUV444: |
||
3038 | case DRM_FORMAT_YVU444: |
||
3039 | return 0; |
||
3040 | default: |
||
4560 | Serge | 3041 | DRM_DEBUG_KMS("invalid pixel format %s\n", |
3042 | drm_get_format_name(r->pixel_format)); |
||
3031 | serge | 3043 | return -EINVAL; |
3044 | } |
||
3045 | } |
||
3046 | |||
3047 | static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) |
||
3048 | { |
||
3049 | int ret, hsub, vsub, num_planes, i; |
||
3050 | |||
3051 | ret = format_check(r); |
||
3052 | if (ret) { |
||
4075 | Serge | 3053 | DRM_DEBUG_KMS("bad framebuffer format %s\n", |
3054 | drm_get_format_name(r->pixel_format)); |
||
3031 | serge | 3055 | return ret; |
3056 | } |
||
3057 | |||
3058 | hsub = drm_format_horz_chroma_subsampling(r->pixel_format); |
||
3059 | vsub = drm_format_vert_chroma_subsampling(r->pixel_format); |
||
3060 | num_planes = drm_format_num_planes(r->pixel_format); |
||
3061 | |||
3062 | if (r->width == 0 || r->width % hsub) { |
||
5271 | serge | 3063 | DRM_DEBUG_KMS("bad framebuffer width %u\n", r->width); |
3031 | serge | 3064 | return -EINVAL; |
3065 | } |
||
3066 | |||
3067 | if (r->height == 0 || r->height % vsub) { |
||
3068 | DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); |
||
3069 | return -EINVAL; |
||
3070 | } |
||
3071 | |||
3072 | for (i = 0; i < num_planes; i++) { |
||
3073 | unsigned int width = r->width / (i != 0 ? hsub : 1); |
||
3192 | Serge | 3074 | unsigned int height = r->height / (i != 0 ? vsub : 1); |
3075 | unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); |
||
3031 | serge | 3076 | |
3077 | if (!r->handles[i]) { |
||
3078 | DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); |
||
3079 | return -EINVAL; |
||
3080 | } |
||
3081 | |||
3192 | Serge | 3082 | if ((uint64_t) width * cpp > UINT_MAX) |
3083 | return -ERANGE; |
||
3084 | |||
3085 | if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) |
||
3086 | return -ERANGE; |
||
3087 | |||
3088 | if (r->pitches[i] < width * cpp) { |
||
3031 | serge | 3089 | DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); |
3090 | return -EINVAL; |
||
3091 | } |
||
6084 | serge | 3092 | |
3093 | if (r->modifier[i] && !(r->flags & DRM_MODE_FB_MODIFIERS)) { |
||
3094 | DRM_DEBUG_KMS("bad fb modifier %llu for plane %d\n", |
||
3095 | r->modifier[i], i); |
||
3096 | return -EINVAL; |
||
3097 | } |
||
3098 | |||
3099 | /* modifier specific checks: */ |
||
3100 | switch (r->modifier[i]) { |
||
3101 | case DRM_FORMAT_MOD_SAMSUNG_64_32_TILE: |
||
3102 | /* NOTE: the pitch restriction may be lifted later if it turns |
||
3103 | * out that no hw has this restriction: |
||
3104 | */ |
||
3105 | if (r->pixel_format != DRM_FORMAT_NV12 || |
||
3106 | width % 128 || height % 32 || |
||
3107 | r->pitches[i] % 128) { |
||
3108 | DRM_DEBUG_KMS("bad modifier data for plane %d\n", i); |
||
3109 | return -EINVAL; |
||
3110 | } |
||
3111 | break; |
||
3112 | |||
3113 | default: |
||
3114 | break; |
||
3115 | } |
||
3031 | serge | 3116 | } |
3117 | |||
6084 | serge | 3118 | for (i = num_planes; i < 4; i++) { |
3119 | if (r->modifier[i]) { |
||
3120 | DRM_DEBUG_KMS("non-zero modifier for unused plane %d\n", i); |
||
3121 | return -EINVAL; |
||
3122 | } |
||
3123 | |||
3124 | /* Pre-FB_MODIFIERS userspace didn't clear the structs properly. */ |
||
3125 | if (!(r->flags & DRM_MODE_FB_MODIFIERS)) |
||
3126 | continue; |
||
3127 | |||
3128 | if (r->handles[i]) { |
||
3129 | DRM_DEBUG_KMS("buffer object handle for unused plane %d\n", i); |
||
3130 | return -EINVAL; |
||
3131 | } |
||
3132 | |||
3133 | if (r->pitches[i]) { |
||
3134 | DRM_DEBUG_KMS("non-zero pitch for unused plane %d\n", i); |
||
3135 | return -EINVAL; |
||
3136 | } |
||
3137 | |||
3138 | if (r->offsets[i]) { |
||
3139 | DRM_DEBUG_KMS("non-zero offset for unused plane %d\n", i); |
||
3140 | return -EINVAL; |
||
3141 | } |
||
3142 | } |
||
3143 | |||
3031 | serge | 3144 | return 0; |
3145 | } |
||
3146 | |||
6084 | serge | 3147 | static struct drm_framebuffer * |
3148 | internal_framebuffer_create(struct drm_device *dev, |
||
3149 | struct drm_mode_fb_cmd2 *r, |
||
3150 | struct drm_file *file_priv) |
||
3031 | serge | 3151 | { |
3152 | struct drm_mode_config *config = &dev->mode_config; |
||
3153 | struct drm_framebuffer *fb; |
||
3154 | int ret; |
||
3155 | |||
6084 | serge | 3156 | if (r->flags & ~(DRM_MODE_FB_INTERLACED | DRM_MODE_FB_MODIFIERS)) { |
3192 | Serge | 3157 | DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); |
5060 | serge | 3158 | return ERR_PTR(-EINVAL); |
3192 | Serge | 3159 | } |
3160 | |||
1123 | serge | 3161 | if ((config->min_width > r->width) || (r->width > config->max_width)) { |
3031 | serge | 3162 | DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", |
3163 | r->width, config->min_width, config->max_width); |
||
5060 | serge | 3164 | return ERR_PTR(-EINVAL); |
1123 | serge | 3165 | } |
3166 | if ((config->min_height > r->height) || (r->height > config->max_height)) { |
||
3031 | serge | 3167 | DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", |
3168 | r->height, config->min_height, config->max_height); |
||
5060 | serge | 3169 | return ERR_PTR(-EINVAL); |
1123 | serge | 3170 | } |
3171 | |||
6084 | serge | 3172 | if (r->flags & DRM_MODE_FB_MODIFIERS && |
3173 | !dev->mode_config.allow_fb_modifiers) { |
||
3174 | DRM_DEBUG_KMS("driver does not support fb modifiers\n"); |
||
3175 | return ERR_PTR(-EINVAL); |
||
3176 | } |
||
3177 | |||
3031 | serge | 3178 | ret = framebuffer_check(r); |
3179 | if (ret) |
||
5060 | serge | 3180 | return ERR_PTR(ret); |
3031 | serge | 3181 | |
1123 | serge | 3182 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); |
1963 | serge | 3183 | if (IS_ERR(fb)) { |
3031 | serge | 3184 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
5060 | serge | 3185 | return fb; |
1123 | serge | 3186 | } |
3187 | |||
5060 | serge | 3188 | return fb; |
3189 | } |
||
3480 | Serge | 3190 | |
5060 | serge | 3191 | /** |
3192 | * drm_mode_addfb2 - add an FB to the graphics configuration |
||
3193 | * @dev: drm device for the ioctl |
||
3194 | * @data: data pointer for the ioctl |
||
3195 | * @file_priv: drm file for the ioctl call |
||
3196 | * |
||
3197 | * Add a new FB to the specified CRTC, given a user request with format. This is |
||
3198 | * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers |
||
3199 | * and uses fourcc codes as pixel format specifiers. |
||
3200 | * |
||
3201 | * Called by the user via ioctl. |
||
3202 | * |
||
3203 | * Returns: |
||
5271 | serge | 3204 | * Zero on success, negative errno on failure. |
5060 | serge | 3205 | */ |
3206 | int drm_mode_addfb2(struct drm_device *dev, |
||
3207 | void *data, struct drm_file *file_priv) |
||
3208 | { |
||
6084 | serge | 3209 | struct drm_mode_fb_cmd2 *r = data; |
5060 | serge | 3210 | struct drm_framebuffer *fb; |
3211 | |||
3212 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
||
3213 | return -EINVAL; |
||
3214 | |||
6084 | serge | 3215 | fb = internal_framebuffer_create(dev, r, file_priv); |
5060 | serge | 3216 | if (IS_ERR(fb)) |
3217 | return PTR_ERR(fb); |
||
3218 | |||
6084 | serge | 3219 | /* Transfer ownership to the filp for reaping on close */ |
3220 | |||
3221 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); |
||
3222 | mutex_lock(&file_priv->fbs_lock); |
||
3223 | r->fb_id = fb->base.id; |
||
3224 | list_add(&fb->filp_head, &file_priv->fbs); |
||
3225 | mutex_unlock(&file_priv->fbs_lock); |
||
3226 | |||
5060 | serge | 3227 | return 0; |
1123 | serge | 3228 | } |
3229 | |||
3230 | /** |
||
3231 | * drm_mode_rmfb - remove an FB from the configuration |
||
3480 | Serge | 3232 | * @dev: drm device for the ioctl |
3233 | * @data: data pointer for the ioctl |
||
3234 | * @file_priv: drm file for the ioctl call |
||
1123 | serge | 3235 | * |
3236 | * Remove the FB specified by the user. |
||
3237 | * |
||
3238 | * Called by the user via ioctl. |
||
3239 | * |
||
5060 | serge | 3240 | * Returns: |
5271 | serge | 3241 | * Zero on success, negative errno on failure. |
1123 | serge | 3242 | */ |
3243 | int drm_mode_rmfb(struct drm_device *dev, |
||
3244 | void *data, struct drm_file *file_priv) |
||
3245 | { |
||
3246 | struct drm_framebuffer *fb = NULL; |
||
3247 | struct drm_framebuffer *fbl = NULL; |
||
3248 | uint32_t *id = data; |
||
3249 | int found = 0; |
||
3250 | |||
1963 | serge | 3251 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3252 | return -EINVAL; |
||
3253 | |||
3480 | Serge | 3254 | mutex_lock(&file_priv->fbs_lock); |
3255 | mutex_lock(&dev->mode_config.fb_lock); |
||
3256 | fb = __drm_framebuffer_lookup(dev, *id); |
||
3257 | if (!fb) |
||
3258 | goto fail_lookup; |
||
1123 | serge | 3259 | |
3260 | list_for_each_entry(fbl, &file_priv->fbs, filp_head) |
||
3261 | if (fb == fbl) |
||
3262 | found = 1; |
||
3480 | Serge | 3263 | if (!found) |
3264 | goto fail_lookup; |
||
1123 | serge | 3265 | |
3480 | Serge | 3266 | list_del_init(&fb->filp_head); |
3267 | mutex_unlock(&dev->mode_config.fb_lock); |
||
3268 | mutex_unlock(&file_priv->fbs_lock); |
||
3269 | |||
6084 | serge | 3270 | drm_framebuffer_unreference(fb); |
1123 | serge | 3271 | |
3480 | Serge | 3272 | return 0; |
3273 | |||
3274 | fail_lookup: |
||
3275 | mutex_unlock(&dev->mode_config.fb_lock); |
||
3276 | mutex_unlock(&file_priv->fbs_lock); |
||
3277 | |||
4560 | Serge | 3278 | return -ENOENT; |
1123 | serge | 3279 | } |
3280 | |||
3281 | /** |
||
3282 | * drm_mode_getfb - get FB info |
||
3480 | Serge | 3283 | * @dev: drm device for the ioctl |
3284 | * @data: data pointer for the ioctl |
||
3285 | * @file_priv: drm file for the ioctl call |
||
1123 | serge | 3286 | * |
3287 | * Lookup the FB given its ID and return info about it. |
||
3288 | * |
||
3289 | * Called by the user via ioctl. |
||
3290 | * |
||
5060 | serge | 3291 | * Returns: |
5271 | serge | 3292 | * Zero on success, negative errno on failure. |
1123 | serge | 3293 | */ |
3294 | int drm_mode_getfb(struct drm_device *dev, |
||
3295 | void *data, struct drm_file *file_priv) |
||
3296 | { |
||
3297 | struct drm_mode_fb_cmd *r = data; |
||
3298 | struct drm_framebuffer *fb; |
||
3480 | Serge | 3299 | int ret; |
1123 | serge | 3300 | |
1963 | serge | 3301 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3302 | return -EINVAL; |
||
3303 | |||
3480 | Serge | 3304 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
3305 | if (!fb) |
||
4560 | Serge | 3306 | return -ENOENT; |
1123 | serge | 3307 | |
3308 | r->height = fb->height; |
||
3309 | r->width = fb->width; |
||
3310 | r->depth = fb->depth; |
||
3311 | r->bpp = fb->bits_per_pixel; |
||
3031 | serge | 3312 | r->pitch = fb->pitches[0]; |
4104 | Serge | 3313 | if (fb->funcs->create_handle) { |
5271 | serge | 3314 | if (file_priv->is_master || capable(CAP_SYS_ADMIN) || |
3315 | drm_is_control_client(file_priv)) { |
||
4104 | Serge | 3316 | ret = fb->funcs->create_handle(fb, file_priv, |
3317 | &r->handle); |
||
3318 | } else { |
||
3319 | /* GET_FB() is an unprivileged ioctl so we must not |
||
3320 | * return a buffer-handle to non-master processes! For |
||
3321 | * backwards-compatibility reasons, we cannot make |
||
3322 | * GET_FB() privileged, so just return an invalid handle |
||
3323 | * for non-masters. */ |
||
3324 | r->handle = 0; |
||
3325 | ret = 0; |
||
3326 | } |
||
3327 | } else { |
||
3480 | Serge | 3328 | ret = -ENODEV; |
4104 | Serge | 3329 | } |
1123 | serge | 3330 | |
3480 | Serge | 3331 | drm_framebuffer_unreference(fb); |
3332 | |||
1123 | serge | 3333 | return ret; |
3334 | } |
||
3335 | |||
5060 | serge | 3336 | /** |
3337 | * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB |
||
3338 | * @dev: drm device for the ioctl |
||
3339 | * @data: data pointer for the ioctl |
||
3340 | * @file_priv: drm file for the ioctl call |
||
3341 | * |
||
3342 | * Lookup the FB and flush out the damaged area supplied by userspace as a clip |
||
3343 | * rectangle list. Generic userspace which does frontbuffer rendering must call |
||
3344 | * this ioctl to flush out the changes on manual-update display outputs, e.g. |
||
3345 | * usb display-link, mipi manual update panels or edp panel self refresh modes. |
||
3346 | * |
||
3347 | * Modesetting drivers which always update the frontbuffer do not need to |
||
3348 | * implement the corresponding ->dirty framebuffer callback. |
||
3349 | * |
||
3350 | * Called by the user via ioctl. |
||
3351 | * |
||
3352 | * Returns: |
||
5271 | serge | 3353 | * Zero on success, negative errno on failure. |
5060 | serge | 3354 | */ |
1412 | serge | 3355 | int drm_mode_dirtyfb_ioctl(struct drm_device *dev, |
3356 | void *data, struct drm_file *file_priv) |
||
3357 | { |
||
3358 | struct drm_clip_rect __user *clips_ptr; |
||
3359 | struct drm_clip_rect *clips = NULL; |
||
3360 | struct drm_mode_fb_dirty_cmd *r = data; |
||
3361 | struct drm_framebuffer *fb; |
||
3362 | unsigned flags; |
||
3363 | int num_clips; |
||
3031 | serge | 3364 | int ret; |
1412 | serge | 3365 | |
1963 | serge | 3366 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3367 | return -EINVAL; |
||
3368 | |||
3480 | Serge | 3369 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
3370 | if (!fb) |
||
4560 | Serge | 3371 | return -ENOENT; |
1412 | serge | 3372 | |
3373 | num_clips = r->num_clips; |
||
3031 | serge | 3374 | clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; |
1412 | serge | 3375 | |
3376 | if (!num_clips != !clips_ptr) { |
||
3377 | ret = -EINVAL; |
||
3378 | goto out_err1; |
||
3379 | } |
||
3380 | |||
3381 | flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; |
||
3382 | |||
3383 | /* If userspace annotates copy, clips must come in pairs */ |
||
3384 | if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { |
||
3385 | ret = -EINVAL; |
||
3386 | goto out_err1; |
||
3387 | } |
||
3388 | |||
3389 | if (num_clips && clips_ptr) { |
||
3031 | serge | 3390 | if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { |
3391 | ret = -EINVAL; |
||
3392 | goto out_err1; |
||
3393 | } |
||
6084 | serge | 3394 | clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); |
1412 | serge | 3395 | if (!clips) { |
3396 | ret = -ENOMEM; |
||
3397 | goto out_err1; |
||
3398 | } |
||
3399 | |||
3400 | ret = copy_from_user(clips, clips_ptr, |
||
3401 | num_clips * sizeof(*clips)); |
||
1963 | serge | 3402 | if (ret) { |
3403 | ret = -EFAULT; |
||
1412 | serge | 3404 | goto out_err2; |
6084 | serge | 3405 | } |
1412 | serge | 3406 | } |
3407 | |||
3408 | if (fb->funcs->dirty) { |
||
1963 | serge | 3409 | ret = fb->funcs->dirty(fb, file_priv, flags, r->color, |
3410 | clips, num_clips); |
||
1412 | serge | 3411 | } else { |
3412 | ret = -ENOSYS; |
||
3413 | } |
||
3414 | |||
3415 | out_err2: |
||
3416 | kfree(clips); |
||
3417 | out_err1: |
||
3480 | Serge | 3418 | drm_framebuffer_unreference(fb); |
3419 | |||
1412 | serge | 3420 | return ret; |
3421 | } |
||
3422 | |||
3423 | |||
1123 | serge | 3424 | /** |
3425 | * drm_fb_release - remove and free the FBs on this file |
||
3480 | Serge | 3426 | * @priv: drm file for the ioctl |
1123 | serge | 3427 | * |
3428 | * Destroy all the FBs associated with @filp. |
||
3429 | * |
||
3430 | * Called by the user via ioctl. |
||
3431 | * |
||
5060 | serge | 3432 | * Returns: |
5271 | serge | 3433 | * Zero on success, negative errno on failure. |
1123 | serge | 3434 | */ |
3435 | void drm_fb_release(struct drm_file *priv) |
||
3436 | { |
||
3437 | struct drm_framebuffer *fb, *tfb; |
||
3438 | |||
5271 | serge | 3439 | /* |
3440 | * When the file gets released that means no one else can access the fb |
||
3441 | * list any more, so no need to grab fpriv->fbs_lock. And we need to |
||
3442 | * avoid upsetting lockdep since the universal cursor code adds a |
||
3443 | * framebuffer while holding mutex locks. |
||
3444 | * |
||
3445 | * Note that a real deadlock between fpriv->fbs_lock and the modeset |
||
3446 | * locks is impossible here since no one else but this function can get |
||
3447 | * at it any more. |
||
3448 | */ |
||
1123 | serge | 3449 | list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { |
3480 | Serge | 3450 | list_del_init(&fb->filp_head); |
3451 | |||
6084 | serge | 3452 | /* This drops the fpriv->fbs reference. */ |
3453 | drm_framebuffer_unreference(fb); |
||
1123 | serge | 3454 | } |
3455 | } |
||
3456 | #endif |
||
3457 | |||
3458 | |||
5060 | serge | 3459 | /** |
3460 | * drm_property_create - create a new property type |
||
3461 | * @dev: drm device |
||
3462 | * @flags: flags specifying the property type |
||
3463 | * @name: name of the property |
||
3464 | * @num_values: number of pre-defined values |
||
3465 | * |
||
3466 | * This creates a new generic drm property which can then be attached to a drm |
||
3467 | * object with drm_object_attach_property. The returned property object must be |
||
3468 | * freed with drm_property_destroy. |
||
3469 | * |
||
5271 | serge | 3470 | * Note that the DRM core keeps a per-device list of properties and that, if |
3471 | * drm_mode_config_cleanup() is called, it will destroy all properties created |
||
3472 | * by the driver. |
||
3473 | * |
||
5060 | serge | 3474 | * Returns: |
3475 | * A pointer to the newly created property on success, NULL on failure. |
||
3476 | */ |
||
1123 | serge | 3477 | struct drm_property *drm_property_create(struct drm_device *dev, int flags, |
3478 | const char *name, int num_values) |
||
3479 | { |
||
3480 | struct drm_property *property = NULL; |
||
3031 | serge | 3481 | int ret; |
1123 | serge | 3482 | |
3483 | property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); |
||
3484 | if (!property) |
||
3485 | return NULL; |
||
3486 | |||
5060 | serge | 3487 | property->dev = dev; |
3488 | |||
1123 | serge | 3489 | if (num_values) { |
6084 | serge | 3490 | property->values = kcalloc(num_values, sizeof(uint64_t), |
3491 | GFP_KERNEL); |
||
1123 | serge | 3492 | if (!property->values) |
3493 | goto fail; |
||
3494 | } |
||
3495 | |||
3031 | serge | 3496 | ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); |
3497 | if (ret) |
||
3498 | goto fail; |
||
3499 | |||
1123 | serge | 3500 | property->flags = flags; |
3501 | property->num_values = num_values; |
||
5271 | serge | 3502 | INIT_LIST_HEAD(&property->enum_list); |
1123 | serge | 3503 | |
3031 | serge | 3504 | if (name) { |
1123 | serge | 3505 | strncpy(property->name, name, DRM_PROP_NAME_LEN); |
3031 | serge | 3506 | property->name[DRM_PROP_NAME_LEN-1] = '\0'; |
3507 | } |
||
1123 | serge | 3508 | |
3509 | list_add_tail(&property->head, &dev->mode_config.property_list); |
||
5060 | serge | 3510 | |
3511 | WARN_ON(!drm_property_type_valid(property)); |
||
3512 | |||
1123 | serge | 3513 | return property; |
3514 | fail: |
||
3031 | serge | 3515 | kfree(property->values); |
1123 | serge | 3516 | kfree(property); |
3517 | return NULL; |
||
3518 | } |
||
3519 | EXPORT_SYMBOL(drm_property_create); |
||
3520 | |||
5060 | serge | 3521 | /** |
3522 | * drm_property_create_enum - create a new enumeration property type |
||
3523 | * @dev: drm device |
||
3524 | * @flags: flags specifying the property type |
||
3525 | * @name: name of the property |
||
3526 | * @props: enumeration lists with property values |
||
3527 | * @num_values: number of pre-defined values |
||
3528 | * |
||
3529 | * This creates a new generic drm property which can then be attached to a drm |
||
3530 | * object with drm_object_attach_property. The returned property object must be |
||
3531 | * freed with drm_property_destroy. |
||
3532 | * |
||
3533 | * Userspace is only allowed to set one of the predefined values for enumeration |
||
3534 | * properties. |
||
3535 | * |
||
3536 | * Returns: |
||
3537 | * A pointer to the newly created property on success, NULL on failure. |
||
3538 | */ |
||
3031 | serge | 3539 | struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, |
3540 | const char *name, |
||
3541 | const struct drm_prop_enum_list *props, |
||
3542 | int num_values) |
||
3543 | { |
||
3544 | struct drm_property *property; |
||
3545 | int i, ret; |
||
3546 | |||
3547 | flags |= DRM_MODE_PROP_ENUM; |
||
3548 | |||
3549 | property = drm_property_create(dev, flags, name, num_values); |
||
3550 | if (!property) |
||
3551 | return NULL; |
||
3552 | |||
3553 | for (i = 0; i < num_values; i++) { |
||
3554 | ret = drm_property_add_enum(property, i, |
||
3555 | props[i].type, |
||
3556 | props[i].name); |
||
3557 | if (ret) { |
||
3558 | drm_property_destroy(dev, property); |
||
3559 | return NULL; |
||
3560 | } |
||
3561 | } |
||
3562 | |||
3563 | return property; |
||
3564 | } |
||
3565 | EXPORT_SYMBOL(drm_property_create_enum); |
||
3566 | |||
5060 | serge | 3567 | /** |
3568 | * drm_property_create_bitmask - create a new bitmask property type |
||
3569 | * @dev: drm device |
||
3570 | * @flags: flags specifying the property type |
||
3571 | * @name: name of the property |
||
3572 | * @props: enumeration lists with property bitflags |
||
5271 | serge | 3573 | * @num_props: size of the @props array |
3574 | * @supported_bits: bitmask of all supported enumeration values |
||
5060 | serge | 3575 | * |
5271 | serge | 3576 | * This creates a new bitmask drm property which can then be attached to a drm |
5060 | serge | 3577 | * object with drm_object_attach_property. The returned property object must be |
3578 | * freed with drm_property_destroy. |
||
3579 | * |
||
3580 | * Compared to plain enumeration properties userspace is allowed to set any |
||
3581 | * or'ed together combination of the predefined property bitflag values |
||
3582 | * |
||
3583 | * Returns: |
||
3584 | * A pointer to the newly created property on success, NULL on failure. |
||
3585 | */ |
||
3031 | serge | 3586 | struct drm_property *drm_property_create_bitmask(struct drm_device *dev, |
3587 | int flags, const char *name, |
||
3588 | const struct drm_prop_enum_list *props, |
||
5060 | serge | 3589 | int num_props, |
3590 | uint64_t supported_bits) |
||
3031 | serge | 3591 | { |
3592 | struct drm_property *property; |
||
5060 | serge | 3593 | int i, ret, index = 0; |
3594 | int num_values = hweight64(supported_bits); |
||
3031 | serge | 3595 | |
3596 | flags |= DRM_MODE_PROP_BITMASK; |
||
3597 | |||
3598 | property = drm_property_create(dev, flags, name, num_values); |
||
3599 | if (!property) |
||
3600 | return NULL; |
||
5060 | serge | 3601 | for (i = 0; i < num_props; i++) { |
3602 | if (!(supported_bits & (1ULL << props[i].type))) |
||
3603 | continue; |
||
3031 | serge | 3604 | |
5060 | serge | 3605 | if (WARN_ON(index >= num_values)) { |
3606 | drm_property_destroy(dev, property); |
||
3607 | return NULL; |
||
3608 | } |
||
3609 | |||
3610 | ret = drm_property_add_enum(property, index++, |
||
3031 | serge | 3611 | props[i].type, |
3612 | props[i].name); |
||
3613 | if (ret) { |
||
3614 | drm_property_destroy(dev, property); |
||
3615 | return NULL; |
||
3616 | } |
||
3617 | } |
||
3618 | |||
3619 | return property; |
||
3620 | } |
||
3621 | EXPORT_SYMBOL(drm_property_create_bitmask); |
||
3622 | |||
5060 | serge | 3623 | static struct drm_property *property_create_range(struct drm_device *dev, |
3624 | int flags, const char *name, |
||
3031 | serge | 3625 | uint64_t min, uint64_t max) |
3626 | { |
||
3627 | struct drm_property *property; |
||
3628 | |||
3629 | property = drm_property_create(dev, flags, name, 2); |
||
3630 | if (!property) |
||
3631 | return NULL; |
||
3632 | |||
3633 | property->values[0] = min; |
||
3634 | property->values[1] = max; |
||
3635 | |||
3636 | return property; |
||
3637 | } |
||
5060 | serge | 3638 | |
3639 | /** |
||
6084 | serge | 3640 | * drm_property_create_range - create a new unsigned ranged property type |
5060 | serge | 3641 | * @dev: drm device |
3642 | * @flags: flags specifying the property type |
||
3643 | * @name: name of the property |
||
3644 | * @min: minimum value of the property |
||
3645 | * @max: maximum value of the property |
||
3646 | * |
||
3647 | * This creates a new generic drm property which can then be attached to a drm |
||
3648 | * object with drm_object_attach_property. The returned property object must be |
||
3649 | * freed with drm_property_destroy. |
||
3650 | * |
||
6084 | serge | 3651 | * Userspace is allowed to set any unsigned integer value in the (min, max) |
3652 | * range inclusive. |
||
5060 | serge | 3653 | * |
3654 | * Returns: |
||
3655 | * A pointer to the newly created property on success, NULL on failure. |
||
3656 | */ |
||
3657 | struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, |
||
3658 | const char *name, |
||
3659 | uint64_t min, uint64_t max) |
||
3660 | { |
||
3661 | return property_create_range(dev, DRM_MODE_PROP_RANGE | flags, |
||
3662 | name, min, max); |
||
3663 | } |
||
3031 | serge | 3664 | EXPORT_SYMBOL(drm_property_create_range); |
3665 | |||
6084 | serge | 3666 | /** |
3667 | * drm_property_create_signed_range - create a new signed ranged property type |
||
3668 | * @dev: drm device |
||
3669 | * @flags: flags specifying the property type |
||
3670 | * @name: name of the property |
||
3671 | * @min: minimum value of the property |
||
3672 | * @max: maximum value of the property |
||
3673 | * |
||
3674 | * This creates a new generic drm property which can then be attached to a drm |
||
3675 | * object with drm_object_attach_property. The returned property object must be |
||
3676 | * freed with drm_property_destroy. |
||
3677 | * |
||
3678 | * Userspace is allowed to set any signed integer value in the (min, max) |
||
3679 | * range inclusive. |
||
3680 | * |
||
3681 | * Returns: |
||
3682 | * A pointer to the newly created property on success, NULL on failure. |
||
3683 | */ |
||
5060 | serge | 3684 | struct drm_property *drm_property_create_signed_range(struct drm_device *dev, |
3685 | int flags, const char *name, |
||
3686 | int64_t min, int64_t max) |
||
3687 | { |
||
3688 | return property_create_range(dev, DRM_MODE_PROP_SIGNED_RANGE | flags, |
||
3689 | name, I642U64(min), I642U64(max)); |
||
3690 | } |
||
3691 | EXPORT_SYMBOL(drm_property_create_signed_range); |
||
3692 | |||
6084 | serge | 3693 | /** |
3694 | * drm_property_create_object - create a new object property type |
||
3695 | * @dev: drm device |
||
3696 | * @flags: flags specifying the property type |
||
3697 | * @name: name of the property |
||
3698 | * @type: object type from DRM_MODE_OBJECT_* defines |
||
3699 | * |
||
3700 | * This creates a new generic drm property which can then be attached to a drm |
||
3701 | * object with drm_object_attach_property. The returned property object must be |
||
3702 | * freed with drm_property_destroy. |
||
3703 | * |
||
3704 | * Userspace is only allowed to set this to any property value of the given |
||
3705 | * @type. Only useful for atomic properties, which is enforced. |
||
3706 | * |
||
3707 | * Returns: |
||
3708 | * A pointer to the newly created property on success, NULL on failure. |
||
3709 | */ |
||
5060 | serge | 3710 | struct drm_property *drm_property_create_object(struct drm_device *dev, |
3711 | int flags, const char *name, uint32_t type) |
||
3712 | { |
||
3713 | struct drm_property *property; |
||
3714 | |||
3715 | flags |= DRM_MODE_PROP_OBJECT; |
||
3716 | |||
6084 | serge | 3717 | if (WARN_ON(!(flags & DRM_MODE_PROP_ATOMIC))) |
3718 | return NULL; |
||
3719 | |||
5060 | serge | 3720 | property = drm_property_create(dev, flags, name, 1); |
3721 | if (!property) |
||
3722 | return NULL; |
||
3723 | |||
3724 | property->values[0] = type; |
||
3725 | |||
3726 | return property; |
||
3727 | } |
||
3728 | EXPORT_SYMBOL(drm_property_create_object); |
||
3729 | |||
3730 | /** |
||
6084 | serge | 3731 | * drm_property_create_bool - create a new boolean property type |
3732 | * @dev: drm device |
||
3733 | * @flags: flags specifying the property type |
||
3734 | * @name: name of the property |
||
3735 | * |
||
3736 | * This creates a new generic drm property which can then be attached to a drm |
||
3737 | * object with drm_object_attach_property. The returned property object must be |
||
3738 | * freed with drm_property_destroy. |
||
3739 | * |
||
3740 | * This is implemented as a ranged property with only {0, 1} as valid values. |
||
3741 | * |
||
3742 | * Returns: |
||
3743 | * A pointer to the newly created property on success, NULL on failure. |
||
3744 | */ |
||
3745 | struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags, |
||
3746 | const char *name) |
||
3747 | { |
||
3748 | return drm_property_create_range(dev, flags, name, 0, 1); |
||
3749 | } |
||
3750 | EXPORT_SYMBOL(drm_property_create_bool); |
||
3751 | |||
3752 | /** |
||
5060 | serge | 3753 | * drm_property_add_enum - add a possible value to an enumeration property |
3754 | * @property: enumeration property to change |
||
3755 | * @index: index of the new enumeration |
||
3756 | * @value: value of the new enumeration |
||
3757 | * @name: symbolic name of the new enumeration |
||
3758 | * |
||
3759 | * This functions adds enumerations to a property. |
||
3760 | * |
||
3761 | * It's use is deprecated, drivers should use one of the more specific helpers |
||
3762 | * to directly create the property with all enumerations already attached. |
||
3763 | * |
||
3764 | * Returns: |
||
3765 | * Zero on success, error code on failure. |
||
3766 | */ |
||
1123 | serge | 3767 | int drm_property_add_enum(struct drm_property *property, int index, |
3768 | uint64_t value, const char *name) |
||
3769 | { |
||
3770 | struct drm_property_enum *prop_enum; |
||
3771 | |||
5060 | serge | 3772 | if (!(drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
3773 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK))) |
||
1123 | serge | 3774 | return -EINVAL; |
3775 | |||
3031 | serge | 3776 | /* |
3777 | * Bitmask enum properties have the additional constraint of values |
||
3778 | * from 0 to 63 |
||
3779 | */ |
||
5060 | serge | 3780 | if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK) && |
3781 | (value > 63)) |
||
3031 | serge | 3782 | return -EINVAL; |
3783 | |||
5271 | serge | 3784 | if (!list_empty(&property->enum_list)) { |
3785 | list_for_each_entry(prop_enum, &property->enum_list, head) { |
||
1123 | serge | 3786 | if (prop_enum->value == value) { |
3787 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); |
||
3788 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; |
||
3789 | return 0; |
||
3790 | } |
||
3791 | } |
||
3792 | } |
||
3793 | |||
3794 | prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); |
||
3795 | if (!prop_enum) |
||
3796 | return -ENOMEM; |
||
3797 | |||
3798 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); |
||
3799 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; |
||
3800 | prop_enum->value = value; |
||
3801 | |||
3802 | property->values[index] = value; |
||
5271 | serge | 3803 | list_add_tail(&prop_enum->head, &property->enum_list); |
1123 | serge | 3804 | return 0; |
3805 | } |
||
3806 | EXPORT_SYMBOL(drm_property_add_enum); |
||
3807 | |||
5060 | serge | 3808 | /** |
3809 | * drm_property_destroy - destroy a drm property |
||
3810 | * @dev: drm device |
||
3811 | * @property: property to destry |
||
3812 | * |
||
3813 | * This function frees a property including any attached resources like |
||
3814 | * enumeration values. |
||
3815 | */ |
||
1123 | serge | 3816 | void drm_property_destroy(struct drm_device *dev, struct drm_property *property) |
3817 | { |
||
3818 | struct drm_property_enum *prop_enum, *pt; |
||
3819 | |||
5271 | serge | 3820 | list_for_each_entry_safe(prop_enum, pt, &property->enum_list, head) { |
1123 | serge | 3821 | list_del(&prop_enum->head); |
3822 | kfree(prop_enum); |
||
3823 | } |
||
3824 | |||
3825 | if (property->num_values) |
||
3826 | kfree(property->values); |
||
3827 | drm_mode_object_put(dev, &property->base); |
||
3828 | list_del(&property->head); |
||
3829 | kfree(property); |
||
3830 | } |
||
3831 | EXPORT_SYMBOL(drm_property_destroy); |
||
3832 | |||
5060 | serge | 3833 | /** |
3834 | * drm_object_attach_property - attach a property to a modeset object |
||
3835 | * @obj: drm modeset object |
||
3836 | * @property: property to attach |
||
3837 | * @init_val: initial value of the property |
||
3838 | * |
||
3839 | * This attaches the given property to the modeset object with the given initial |
||
3840 | * value. Currently this function cannot fail since the properties are stored in |
||
3841 | * a statically sized array. |
||
3842 | */ |
||
3031 | serge | 3843 | void drm_object_attach_property(struct drm_mode_object *obj, |
3844 | struct drm_property *property, |
||
3845 | uint64_t init_val) |
||
3846 | { |
||
3847 | int count = obj->properties->count; |
||
3848 | |||
3849 | if (count == DRM_OBJECT_MAX_PROPERTY) { |
||
3850 | WARN(1, "Failed to attach object property (type: 0x%x). Please " |
||
3851 | "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " |
||
3852 | "you see this message on the same object type.\n", |
||
3853 | obj->type); |
||
3854 | return; |
||
3855 | } |
||
3856 | |||
6084 | serge | 3857 | obj->properties->properties[count] = property; |
3031 | serge | 3858 | obj->properties->values[count] = init_val; |
3859 | obj->properties->count++; |
||
6084 | serge | 3860 | if (property->flags & DRM_MODE_PROP_ATOMIC) |
3861 | obj->properties->atomic_count++; |
||
3031 | serge | 3862 | } |
3863 | EXPORT_SYMBOL(drm_object_attach_property); |
||
3864 | |||
5060 | serge | 3865 | /** |
3866 | * drm_object_property_set_value - set the value of a property |
||
3867 | * @obj: drm mode object to set property value for |
||
3868 | * @property: property to set |
||
3869 | * @val: value the property should be set to |
||
3870 | * |
||
3871 | * This functions sets a given property on a given object. This function only |
||
3872 | * changes the software state of the property, it does not call into the |
||
3873 | * driver's ->set_property callback. |
||
3874 | * |
||
3875 | * Returns: |
||
3876 | * Zero on success, error code on failure. |
||
3877 | */ |
||
3031 | serge | 3878 | int drm_object_property_set_value(struct drm_mode_object *obj, |
3879 | struct drm_property *property, uint64_t val) |
||
3880 | { |
||
1123 | serge | 3881 | int i; |
3882 | |||
3031 | serge | 3883 | for (i = 0; i < obj->properties->count; i++) { |
6084 | serge | 3884 | if (obj->properties->properties[i] == property) { |
3031 | serge | 3885 | obj->properties->values[i] = val; |
3886 | return 0; |
||
1123 | serge | 3887 | } |
3888 | } |
||
3889 | |||
6084 | serge | 3890 | return -EINVAL; |
1123 | serge | 3891 | } |
3031 | serge | 3892 | EXPORT_SYMBOL(drm_object_property_set_value); |
1123 | serge | 3893 | |
5060 | serge | 3894 | /** |
3895 | * drm_object_property_get_value - retrieve the value of a property |
||
3896 | * @obj: drm mode object to get property value from |
||
3897 | * @property: property to retrieve |
||
3898 | * @val: storage for the property value |
||
3899 | * |
||
3900 | * This function retrieves the softare state of the given property for the given |
||
3901 | * property. Since there is no driver callback to retrieve the current property |
||
3902 | * value this might be out of sync with the hardware, depending upon the driver |
||
3903 | * and property. |
||
3904 | * |
||
3905 | * Returns: |
||
3906 | * Zero on success, error code on failure. |
||
3907 | */ |
||
3031 | serge | 3908 | int drm_object_property_get_value(struct drm_mode_object *obj, |
1123 | serge | 3909 | struct drm_property *property, uint64_t *val) |
3910 | { |
||
3911 | int i; |
||
3912 | |||
6084 | serge | 3913 | /* read-only properties bypass atomic mechanism and still store |
3914 | * their value in obj->properties->values[].. mostly to avoid |
||
3915 | * having to deal w/ EDID and similar props in atomic paths: |
||
3916 | */ |
||
3917 | if (drm_core_check_feature(property->dev, DRIVER_ATOMIC) && |
||
3918 | !(property->flags & DRM_MODE_PROP_IMMUTABLE)) |
||
3919 | return drm_atomic_get_property(obj, property, val); |
||
3920 | |||
3031 | serge | 3921 | for (i = 0; i < obj->properties->count; i++) { |
6084 | serge | 3922 | if (obj->properties->properties[i] == property) { |
3031 | serge | 3923 | *val = obj->properties->values[i]; |
3924 | return 0; |
||
1123 | serge | 3925 | } |
3926 | } |
||
3927 | |||
6084 | serge | 3928 | return -EINVAL; |
1123 | serge | 3929 | } |
3031 | serge | 3930 | EXPORT_SYMBOL(drm_object_property_get_value); |
1123 | serge | 3931 | |
3932 | #if 0 |
||
5060 | serge | 3933 | /** |
5271 | serge | 3934 | * drm_mode_getproperty_ioctl - get the property metadata |
5060 | serge | 3935 | * @dev: DRM device |
3936 | * @data: ioctl data |
||
3937 | * @file_priv: DRM file info |
||
3938 | * |
||
5271 | serge | 3939 | * This function retrieves the metadata for a given property, like the different |
3940 | * possible values for an enum property or the limits for a range property. |
||
5060 | serge | 3941 | * |
5271 | serge | 3942 | * Blob properties are special |
3943 | * |
||
5060 | serge | 3944 | * Called by the user via ioctl. |
3945 | * |
||
3946 | * Returns: |
||
5271 | serge | 3947 | * Zero on success, negative errno on failure. |
5060 | serge | 3948 | */ |
1123 | serge | 3949 | int drm_mode_getproperty_ioctl(struct drm_device *dev, |
3950 | void *data, struct drm_file *file_priv) |
||
3951 | { |
||
3952 | struct drm_mode_get_property *out_resp = data; |
||
3953 | struct drm_property *property; |
||
3954 | int enum_count = 0; |
||
3955 | int value_count = 0; |
||
3956 | int ret = 0, i; |
||
3957 | int copied; |
||
3958 | struct drm_property_enum *prop_enum; |
||
3959 | struct drm_mode_property_enum __user *enum_ptr; |
||
3960 | uint64_t __user *values_ptr; |
||
3961 | |||
1963 | serge | 3962 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3963 | return -EINVAL; |
||
3964 | |||
3480 | Serge | 3965 | drm_modeset_lock_all(dev); |
5060 | serge | 3966 | property = drm_property_find(dev, out_resp->prop_id); |
3967 | if (!property) { |
||
4560 | Serge | 3968 | ret = -ENOENT; |
1123 | serge | 3969 | goto done; |
3970 | } |
||
3971 | |||
5060 | serge | 3972 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
3973 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { |
||
5271 | serge | 3974 | list_for_each_entry(prop_enum, &property->enum_list, head) |
1123 | serge | 3975 | enum_count++; |
3976 | } |
||
3977 | |||
3978 | value_count = property->num_values; |
||
3979 | |||
3980 | strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); |
||
3981 | out_resp->name[DRM_PROP_NAME_LEN-1] = 0; |
||
3982 | out_resp->flags = property->flags; |
||
3983 | |||
3984 | if ((out_resp->count_values >= value_count) && value_count) { |
||
3031 | serge | 3985 | values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; |
1123 | serge | 3986 | for (i = 0; i < value_count; i++) { |
3987 | if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { |
||
3988 | ret = -EFAULT; |
||
3989 | goto done; |
||
3990 | } |
||
3991 | } |
||
3992 | } |
||
3993 | out_resp->count_values = value_count; |
||
3994 | |||
5060 | serge | 3995 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
3996 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { |
||
1123 | serge | 3997 | if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { |
3998 | copied = 0; |
||
3031 | serge | 3999 | enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; |
5271 | serge | 4000 | list_for_each_entry(prop_enum, &property->enum_list, head) { |
1123 | serge | 4001 | |
4002 | if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { |
||
4003 | ret = -EFAULT; |
||
4004 | goto done; |
||
4005 | } |
||
4006 | |||
4007 | if (copy_to_user(&enum_ptr[copied].name, |
||
4008 | &prop_enum->name, DRM_PROP_NAME_LEN)) { |
||
4009 | ret = -EFAULT; |
||
4010 | goto done; |
||
4011 | } |
||
4012 | copied++; |
||
4013 | } |
||
4014 | } |
||
4015 | out_resp->count_enum_blobs = enum_count; |
||
4016 | } |
||
4017 | |||
5271 | serge | 4018 | /* |
4019 | * NOTE: The idea seems to have been to use this to read all the blob |
||
4020 | * property values. But nothing ever added them to the corresponding |
||
4021 | * list, userspace always used the special-purpose get_blob ioctl to |
||
4022 | * read the value for a blob property. It also doesn't make a lot of |
||
4023 | * sense to return values here when everything else is just metadata for |
||
4024 | * the property itself. |
||
4025 | */ |
||
4026 | if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) |
||
4027 | out_resp->count_enum_blobs = 0; |
||
1123 | serge | 4028 | done: |
3480 | Serge | 4029 | drm_modeset_unlock_all(dev); |
1123 | serge | 4030 | return ret; |
4031 | } |
||
4032 | #endif |
||
4033 | |||
6084 | serge | 4034 | /** |
4035 | * drm_property_create_blob - Create new blob property |
||
4036 | * |
||
4037 | * Creates a new blob property for a specified DRM device, optionally |
||
4038 | * copying data. |
||
4039 | * |
||
4040 | * @dev: DRM device to create property for |
||
4041 | * @length: Length to allocate for blob data |
||
4042 | * @data: If specified, copies data into blob |
||
4043 | * |
||
4044 | * Returns: |
||
4045 | * New blob property with a single reference on success, or an ERR_PTR |
||
4046 | * value on failure. |
||
4047 | */ |
||
4048 | struct drm_property_blob * |
||
5271 | serge | 4049 | drm_property_create_blob(struct drm_device *dev, size_t length, |
4050 | const void *data) |
||
1123 | serge | 4051 | { |
4052 | struct drm_property_blob *blob; |
||
3031 | serge | 4053 | int ret; |
1123 | serge | 4054 | |
6084 | serge | 4055 | if (!length || length > ULONG_MAX - sizeof(struct drm_property_blob)) |
4056 | return ERR_PTR(-EINVAL); |
||
1123 | serge | 4057 | |
4058 | blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); |
||
4059 | if (!blob) |
||
6084 | serge | 4060 | return ERR_PTR(-ENOMEM); |
1123 | serge | 4061 | |
6084 | serge | 4062 | /* This must be explicitly initialised, so we can safely call list_del |
4063 | * on it in the removal handler, even if it isn't in a file list. */ |
||
4064 | INIT_LIST_HEAD(&blob->head_file); |
||
4065 | blob->length = length; |
||
4066 | blob->dev = dev; |
||
4067 | |||
4068 | if (data) |
||
4069 | memcpy(blob->data, data, length); |
||
4070 | |||
4071 | mutex_lock(&dev->mode_config.blob_lock); |
||
4072 | |||
3031 | serge | 4073 | ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); |
4074 | if (ret) { |
||
4075 | kfree(blob); |
||
6084 | serge | 4076 | mutex_unlock(&dev->mode_config.blob_lock); |
4077 | return ERR_PTR(-EINVAL); |
||
3031 | serge | 4078 | } |
4079 | |||
6084 | serge | 4080 | kref_init(&blob->refcount); |
1123 | serge | 4081 | |
6084 | serge | 4082 | list_add_tail(&blob->head_global, |
4083 | &dev->mode_config.property_blob_list); |
||
1123 | serge | 4084 | |
6084 | serge | 4085 | mutex_unlock(&dev->mode_config.blob_lock); |
4086 | |||
1123 | serge | 4087 | return blob; |
4088 | } |
||
6084 | serge | 4089 | EXPORT_SYMBOL(drm_property_create_blob); |
1123 | serge | 4090 | |
6084 | serge | 4091 | /** |
4092 | * drm_property_free_blob - Blob property destructor |
||
4093 | * |
||
4094 | * Internal free function for blob properties; must not be used directly. |
||
4095 | * |
||
4096 | * @kref: Reference |
||
4097 | */ |
||
4098 | static void drm_property_free_blob(struct kref *kref) |
||
1123 | serge | 4099 | { |
6084 | serge | 4100 | struct drm_property_blob *blob = |
4101 | container_of(kref, struct drm_property_blob, refcount); |
||
4102 | |||
4103 | WARN_ON(!mutex_is_locked(&blob->dev->mode_config.blob_lock)); |
||
4104 | |||
4105 | list_del(&blob->head_global); |
||
4106 | list_del(&blob->head_file); |
||
4107 | drm_mode_object_put(blob->dev, &blob->base); |
||
4108 | |||
1123 | serge | 4109 | kfree(blob); |
4110 | } |
||
4111 | |||
6084 | serge | 4112 | /** |
4113 | * drm_property_unreference_blob - Unreference a blob property |
||
4114 | * |
||
4115 | * Drop a reference on a blob property. May free the object. |
||
4116 | * |
||
4117 | * @blob: Pointer to blob property |
||
4118 | */ |
||
4119 | void drm_property_unreference_blob(struct drm_property_blob *blob) |
||
4120 | { |
||
4121 | struct drm_device *dev; |
||
4122 | |||
4123 | if (!blob) |
||
4124 | return; |
||
4125 | |||
4126 | dev = blob->dev; |
||
4127 | |||
4128 | DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); |
||
4129 | |||
4130 | if (kref_put_mutex(&blob->refcount, drm_property_free_blob, |
||
4131 | &dev->mode_config.blob_lock)) |
||
4132 | mutex_unlock(&dev->mode_config.blob_lock); |
||
4133 | else |
||
4134 | might_lock(&dev->mode_config.blob_lock); |
||
4135 | } |
||
4136 | EXPORT_SYMBOL(drm_property_unreference_blob); |
||
4137 | |||
4138 | /** |
||
4139 | * drm_property_unreference_blob_locked - Unreference a blob property with blob_lock held |
||
4140 | * |
||
4141 | * Drop a reference on a blob property. May free the object. This must be |
||
4142 | * called with blob_lock held. |
||
4143 | * |
||
4144 | * @blob: Pointer to blob property |
||
4145 | */ |
||
4146 | static void drm_property_unreference_blob_locked(struct drm_property_blob *blob) |
||
4147 | { |
||
4148 | if (!blob) |
||
4149 | return; |
||
4150 | |||
4151 | DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); |
||
4152 | |||
4153 | kref_put(&blob->refcount, drm_property_free_blob); |
||
4154 | } |
||
4155 | |||
4156 | /** |
||
4157 | * drm_property_destroy_user_blobs - destroy all blobs created by this client |
||
4158 | * @dev: DRM device |
||
4159 | * @file_priv: destroy all blobs owned by this file handle |
||
4160 | */ |
||
4161 | void drm_property_destroy_user_blobs(struct drm_device *dev, |
||
4162 | struct drm_file *file_priv) |
||
4163 | { |
||
4164 | struct drm_property_blob *blob, *bt; |
||
4165 | |||
4166 | mutex_lock(&dev->mode_config.blob_lock); |
||
4167 | |||
4168 | list_for_each_entry_safe(blob, bt, &file_priv->blobs, head_file) { |
||
4169 | list_del_init(&blob->head_file); |
||
4170 | drm_property_unreference_blob_locked(blob); |
||
4171 | } |
||
4172 | |||
4173 | mutex_unlock(&dev->mode_config.blob_lock); |
||
4174 | } |
||
4175 | |||
4176 | /** |
||
4177 | * drm_property_reference_blob - Take a reference on an existing property |
||
4178 | * |
||
4179 | * Take a new reference on an existing blob property. |
||
4180 | * |
||
4181 | * @blob: Pointer to blob property |
||
4182 | */ |
||
4183 | struct drm_property_blob *drm_property_reference_blob(struct drm_property_blob *blob) |
||
4184 | { |
||
4185 | DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); |
||
4186 | kref_get(&blob->refcount); |
||
4187 | return blob; |
||
4188 | } |
||
4189 | EXPORT_SYMBOL(drm_property_reference_blob); |
||
4190 | |||
4191 | /* |
||
4192 | * Like drm_property_lookup_blob, but does not return an additional reference. |
||
4193 | * Must be called with blob_lock held. |
||
4194 | */ |
||
4195 | static struct drm_property_blob *__drm_property_lookup_blob(struct drm_device *dev, |
||
4196 | uint32_t id) |
||
4197 | { |
||
4198 | struct drm_mode_object *obj = NULL; |
||
4199 | struct drm_property_blob *blob; |
||
4200 | |||
4201 | WARN_ON(!mutex_is_locked(&dev->mode_config.blob_lock)); |
||
4202 | |||
4203 | mutex_lock(&dev->mode_config.idr_mutex); |
||
4204 | obj = idr_find(&dev->mode_config.crtc_idr, id); |
||
4205 | if (!obj || (obj->type != DRM_MODE_OBJECT_BLOB) || (obj->id != id)) |
||
4206 | blob = NULL; |
||
4207 | else |
||
4208 | blob = obj_to_blob(obj); |
||
4209 | mutex_unlock(&dev->mode_config.idr_mutex); |
||
4210 | |||
4211 | return blob; |
||
4212 | } |
||
4213 | |||
4214 | /** |
||
4215 | * drm_property_lookup_blob - look up a blob property and take a reference |
||
4216 | * @dev: drm device |
||
4217 | * @id: id of the blob property |
||
4218 | * |
||
4219 | * If successful, this takes an additional reference to the blob property. |
||
4220 | * callers need to make sure to eventually unreference the returned property |
||
4221 | * again, using @drm_property_unreference_blob. |
||
4222 | */ |
||
4223 | struct drm_property_blob *drm_property_lookup_blob(struct drm_device *dev, |
||
4224 | uint32_t id) |
||
4225 | { |
||
4226 | struct drm_property_blob *blob; |
||
4227 | |||
4228 | mutex_lock(&dev->mode_config.blob_lock); |
||
4229 | blob = __drm_property_lookup_blob(dev, id); |
||
4230 | if (blob) { |
||
4231 | if (!kref_get_unless_zero(&blob->refcount)) |
||
4232 | blob = NULL; |
||
4233 | } |
||
4234 | mutex_unlock(&dev->mode_config.blob_lock); |
||
4235 | |||
4236 | return blob; |
||
4237 | } |
||
4238 | EXPORT_SYMBOL(drm_property_lookup_blob); |
||
4239 | |||
4240 | /** |
||
4241 | * drm_property_replace_global_blob - atomically replace existing blob property |
||
4242 | * @dev: drm device |
||
4243 | * @replace: location of blob property pointer to be replaced |
||
4244 | * @length: length of data for new blob, or 0 for no data |
||
4245 | * @data: content for new blob, or NULL for no data |
||
4246 | * @obj_holds_id: optional object for property holding blob ID |
||
4247 | * @prop_holds_id: optional property holding blob ID |
||
4248 | * @return 0 on success or error on failure |
||
4249 | * |
||
4250 | * This function will atomically replace a global property in the blob list, |
||
4251 | * optionally updating a property which holds the ID of that property. It is |
||
4252 | * guaranteed to be atomic: no caller will be allowed to see intermediate |
||
4253 | * results, and either the entire operation will succeed and clean up the |
||
4254 | * previous property, or it will fail and the state will be unchanged. |
||
4255 | * |
||
4256 | * If length is 0 or data is NULL, no new blob will be created, and the holding |
||
4257 | * property, if specified, will be set to 0. |
||
4258 | * |
||
4259 | * Access to the replace pointer is assumed to be protected by the caller, e.g. |
||
4260 | * by holding the relevant modesetting object lock for its parent. |
||
4261 | * |
||
4262 | * For example, a drm_connector has a 'PATH' property, which contains the ID |
||
4263 | * of a blob property with the value of the MST path information. Calling this |
||
4264 | * function with replace pointing to the connector's path_blob_ptr, length and |
||
4265 | * data set for the new path information, obj_holds_id set to the connector's |
||
4266 | * base object, and prop_holds_id set to the path property name, will perform |
||
4267 | * a completely atomic update. The access to path_blob_ptr is protected by the |
||
4268 | * caller holding a lock on the connector. |
||
4269 | */ |
||
4270 | static int drm_property_replace_global_blob(struct drm_device *dev, |
||
4271 | struct drm_property_blob **replace, |
||
4272 | size_t length, |
||
4273 | const void *data, |
||
4274 | struct drm_mode_object *obj_holds_id, |
||
4275 | struct drm_property *prop_holds_id) |
||
4276 | { |
||
4277 | struct drm_property_blob *new_blob = NULL; |
||
4278 | struct drm_property_blob *old_blob = NULL; |
||
4279 | int ret; |
||
4280 | |||
4281 | WARN_ON(replace == NULL); |
||
4282 | |||
4283 | old_blob = *replace; |
||
4284 | |||
4285 | if (length && data) { |
||
4286 | new_blob = drm_property_create_blob(dev, length, data); |
||
4287 | if (IS_ERR(new_blob)) |
||
4288 | return PTR_ERR(new_blob); |
||
4289 | } |
||
4290 | |||
4291 | /* This does not need to be synchronised with blob_lock, as the |
||
4292 | * get_properties ioctl locks all modesetting objects, and |
||
4293 | * obj_holds_id must be locked before calling here, so we cannot |
||
4294 | * have its value out of sync with the list membership modified |
||
4295 | * below under blob_lock. */ |
||
4296 | if (obj_holds_id) { |
||
4297 | ret = drm_object_property_set_value(obj_holds_id, |
||
4298 | prop_holds_id, |
||
4299 | new_blob ? |
||
4300 | new_blob->base.id : 0); |
||
4301 | if (ret != 0) |
||
4302 | goto err_created; |
||
4303 | } |
||
4304 | |||
4305 | drm_property_unreference_blob(old_blob); |
||
4306 | *replace = new_blob; |
||
4307 | |||
4308 | return 0; |
||
4309 | |||
4310 | err_created: |
||
4311 | drm_property_unreference_blob(new_blob); |
||
4312 | return ret; |
||
4313 | } |
||
4314 | |||
4315 | |||
1123 | serge | 4316 | #if 0 |
5060 | serge | 4317 | /** |
4318 | * drm_mode_getblob_ioctl - get the contents of a blob property value |
||
4319 | * @dev: DRM device |
||
4320 | * @data: ioctl data |
||
4321 | * @file_priv: DRM file info |
||
4322 | * |
||
4323 | * This function retrieves the contents of a blob property. The value stored in |
||
4324 | * an object's blob property is just a normal modeset object id. |
||
4325 | * |
||
4326 | * Called by the user via ioctl. |
||
4327 | * |
||
4328 | * Returns: |
||
5271 | serge | 4329 | * Zero on success, negative errno on failure. |
5060 | serge | 4330 | */ |
1123 | serge | 4331 | int drm_mode_getblob_ioctl(struct drm_device *dev, |
4332 | void *data, struct drm_file *file_priv) |
||
4333 | { |
||
4334 | struct drm_mode_get_blob *out_resp = data; |
||
4335 | struct drm_property_blob *blob; |
||
4336 | int ret = 0; |
||
3031 | serge | 4337 | void __user *blob_ptr; |
1123 | serge | 4338 | |
1963 | serge | 4339 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4340 | return -EINVAL; |
||
4341 | |||
3480 | Serge | 4342 | drm_modeset_lock_all(dev); |
6084 | serge | 4343 | mutex_lock(&dev->mode_config.blob_lock); |
4344 | blob = __drm_property_lookup_blob(dev, out_resp->blob_id); |
||
5060 | serge | 4345 | if (!blob) { |
4560 | Serge | 4346 | ret = -ENOENT; |
1123 | serge | 4347 | goto done; |
4348 | } |
||
4349 | |||
4350 | if (out_resp->length == blob->length) { |
||
3031 | serge | 4351 | blob_ptr = (void __user *)(unsigned long)out_resp->data; |
6084 | serge | 4352 | if (copy_to_user(blob_ptr, blob->data, blob->length)) { |
1123 | serge | 4353 | ret = -EFAULT; |
4354 | goto done; |
||
4355 | } |
||
4356 | } |
||
4357 | out_resp->length = blob->length; |
||
4358 | |||
4359 | done: |
||
6084 | serge | 4360 | mutex_unlock(&dev->mode_config.blob_lock); |
3480 | Serge | 4361 | drm_modeset_unlock_all(dev); |
1123 | serge | 4362 | return ret; |
4363 | } |
||
4364 | #endif |
||
4365 | |||
5271 | serge | 4366 | /** |
4367 | * drm_mode_connector_set_path_property - set tile property on connector |
||
4368 | * @connector: connector to set property on. |
||
6084 | serge | 4369 | * @path: path to use for property; must not be NULL. |
5271 | serge | 4370 | * |
4371 | * This creates a property to expose to userspace to specify a |
||
4372 | * connector path. This is mainly used for DisplayPort MST where |
||
4373 | * connectors have a topology and we want to allow userspace to give |
||
4374 | * them more meaningful names. |
||
4375 | * |
||
4376 | * Returns: |
||
4377 | * Zero on success, negative errno on failure. |
||
4378 | */ |
||
5060 | serge | 4379 | int drm_mode_connector_set_path_property(struct drm_connector *connector, |
5271 | serge | 4380 | const char *path) |
5060 | serge | 4381 | { |
4382 | struct drm_device *dev = connector->dev; |
||
5271 | serge | 4383 | int ret; |
5060 | serge | 4384 | |
6084 | serge | 4385 | ret = drm_property_replace_global_blob(dev, |
4386 | &connector->path_blob_ptr, |
||
4387 | strlen(path) + 1, |
||
4388 | path, |
||
4389 | &connector->base, |
||
4390 | dev->mode_config.path_property); |
||
5060 | serge | 4391 | return ret; |
4392 | } |
||
4393 | EXPORT_SYMBOL(drm_mode_connector_set_path_property); |
||
4394 | |||
4395 | /** |
||
5271 | serge | 4396 | * drm_mode_connector_set_tile_property - set tile property on connector |
4397 | * @connector: connector to set property on. |
||
4398 | * |
||
4399 | * This looks up the tile information for a connector, and creates a |
||
4400 | * property for userspace to parse if it exists. The property is of |
||
4401 | * the form of 8 integers using ':' as a separator. |
||
4402 | * |
||
4403 | * Returns: |
||
4404 | * Zero on success, errno on failure. |
||
4405 | */ |
||
4406 | int drm_mode_connector_set_tile_property(struct drm_connector *connector) |
||
4407 | { |
||
4408 | struct drm_device *dev = connector->dev; |
||
4409 | char tile[256]; |
||
6084 | serge | 4410 | int ret; |
5271 | serge | 4411 | |
4412 | if (!connector->has_tile) { |
||
6084 | serge | 4413 | ret = drm_property_replace_global_blob(dev, |
4414 | &connector->tile_blob_ptr, |
||
4415 | 0, |
||
4416 | NULL, |
||
4417 | &connector->base, |
||
4418 | dev->mode_config.tile_property); |
||
5271 | serge | 4419 | return ret; |
4420 | } |
||
4421 | |||
4422 | snprintf(tile, 256, "%d:%d:%d:%d:%d:%d:%d:%d", |
||
4423 | connector->tile_group->id, connector->tile_is_single_monitor, |
||
4424 | connector->num_h_tile, connector->num_v_tile, |
||
4425 | connector->tile_h_loc, connector->tile_v_loc, |
||
4426 | connector->tile_h_size, connector->tile_v_size); |
||
4427 | |||
6084 | serge | 4428 | ret = drm_property_replace_global_blob(dev, |
4429 | &connector->tile_blob_ptr, |
||
4430 | strlen(tile) + 1, |
||
4431 | tile, |
||
4432 | &connector->base, |
||
4433 | dev->mode_config.tile_property); |
||
5271 | serge | 4434 | return ret; |
4435 | } |
||
4436 | EXPORT_SYMBOL(drm_mode_connector_set_tile_property); |
||
4437 | |||
4438 | /** |
||
5060 | serge | 4439 | * drm_mode_connector_update_edid_property - update the edid property of a connector |
4440 | * @connector: drm connector |
||
4441 | * @edid: new value of the edid property |
||
4442 | * |
||
4443 | * This function creates a new blob modeset object and assigns its id to the |
||
4444 | * connector's edid property. |
||
4445 | * |
||
4446 | * Returns: |
||
5367 | serge | 4447 | * Zero on success, negative errno on failure. |
5060 | serge | 4448 | */ |
1123 | serge | 4449 | int drm_mode_connector_update_edid_property(struct drm_connector *connector, |
5271 | serge | 4450 | const struct edid *edid) |
1123 | serge | 4451 | { |
4452 | struct drm_device *dev = connector->dev; |
||
6084 | serge | 4453 | size_t size = 0; |
5271 | serge | 4454 | int ret; |
1123 | serge | 4455 | |
5060 | serge | 4456 | /* ignore requests to set edid when overridden */ |
4457 | if (connector->override_edid) |
||
4458 | return 0; |
||
4459 | |||
6084 | serge | 4460 | if (edid) |
4461 | size = EDID_LENGTH * (1 + edid->extensions); |
||
1123 | serge | 4462 | |
6084 | serge | 4463 | ret = drm_property_replace_global_blob(dev, |
4464 | &connector->edid_blob_ptr, |
||
4465 | size, |
||
4466 | edid, |
||
4467 | &connector->base, |
||
4468 | dev->mode_config.edid_property); |
||
4469 | return ret; |
||
4470 | } |
||
4471 | EXPORT_SYMBOL(drm_mode_connector_update_edid_property); |
||
4472 | |||
4473 | /* Some properties could refer to dynamic refcnt'd objects, or things that |
||
4474 | * need special locking to handle lifetime issues (ie. to ensure the prop |
||
4475 | * value doesn't become invalid part way through the property update due to |
||
4476 | * race). The value returned by reference via 'obj' should be passed back |
||
4477 | * to drm_property_change_valid_put() after the property is set (and the |
||
4478 | * object to which the property is attached has a chance to take it's own |
||
4479 | * reference). |
||
4480 | */ |
||
4481 | bool drm_property_change_valid_get(struct drm_property *property, |
||
4482 | uint64_t value, struct drm_mode_object **ref) |
||
4483 | { |
||
4484 | int i; |
||
4485 | |||
4486 | if (property->flags & DRM_MODE_PROP_IMMUTABLE) |
||
4487 | return false; |
||
4488 | |||
4489 | *ref = NULL; |
||
4490 | |||
4491 | if (drm_property_type_is(property, DRM_MODE_PROP_RANGE)) { |
||
4492 | if (value < property->values[0] || value > property->values[1]) |
||
4493 | return false; |
||
4494 | return true; |
||
4495 | } else if (drm_property_type_is(property, DRM_MODE_PROP_SIGNED_RANGE)) { |
||
4496 | int64_t svalue = U642I64(value); |
||
4497 | |||
4498 | if (svalue < U642I64(property->values[0]) || |
||
4499 | svalue > U642I64(property->values[1])) |
||
4500 | return false; |
||
4501 | return true; |
||
4502 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { |
||
4503 | uint64_t valid_mask = 0; |
||
4504 | |||
4505 | for (i = 0; i < property->num_values; i++) |
||
4506 | valid_mask |= (1ULL << property->values[i]); |
||
4507 | return !(value & ~valid_mask); |
||
4508 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { |
||
4509 | struct drm_property_blob *blob; |
||
4510 | |||
4511 | if (value == 0) |
||
4512 | return true; |
||
4513 | |||
4514 | blob = drm_property_lookup_blob(property->dev, value); |
||
4515 | if (blob) { |
||
4516 | *ref = &blob->base; |
||
4517 | return true; |
||
4518 | } else { |
||
4519 | return false; |
||
4520 | } |
||
4521 | } else if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { |
||
4522 | /* a zero value for an object property translates to null: */ |
||
4523 | if (value == 0) |
||
4524 | return true; |
||
4525 | |||
4526 | /* handle refcnt'd objects specially: */ |
||
4527 | if (property->values[0] == DRM_MODE_OBJECT_FB) { |
||
4528 | struct drm_framebuffer *fb; |
||
4529 | fb = drm_framebuffer_lookup(property->dev, value); |
||
4530 | if (fb) { |
||
4531 | *ref = &fb->base; |
||
4532 | return true; |
||
4533 | } else { |
||
4534 | return false; |
||
4535 | } |
||
4536 | } else { |
||
4537 | return _object_find(property->dev, value, property->values[0]) != NULL; |
||
4538 | } |
||
1123 | serge | 4539 | } |
4540 | |||
6084 | serge | 4541 | for (i = 0; i < property->num_values; i++) |
4542 | if (property->values[i] == value) |
||
4543 | return true; |
||
4544 | return false; |
||
4545 | } |
||
1123 | serge | 4546 | |
6084 | serge | 4547 | void drm_property_change_valid_put(struct drm_property *property, |
4548 | struct drm_mode_object *ref) |
||
4549 | { |
||
4550 | if (!ref) |
||
4551 | return; |
||
1123 | serge | 4552 | |
6084 | serge | 4553 | if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { |
4554 | if (property->values[0] == DRM_MODE_OBJECT_FB) |
||
4555 | drm_framebuffer_unreference(obj_to_fb(ref)); |
||
4556 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) |
||
4557 | drm_property_unreference_blob(obj_to_blob(ref)); |
||
1123 | serge | 4558 | } |
4559 | |||
3031 | serge | 4560 | |
5271 | serge | 4561 | |
3031 | serge | 4562 | static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, |
4563 | struct drm_property *property, |
||
4564 | uint64_t value) |
||
1123 | serge | 4565 | { |
3031 | serge | 4566 | int ret = -EINVAL; |
4567 | struct drm_connector *connector = obj_to_connector(obj); |
||
4568 | |||
4569 | /* Do DPMS ourselves */ |
||
4570 | if (property == connector->dev->mode_config.dpms_property) { |
||
6084 | serge | 4571 | ret = 0; |
3031 | serge | 4572 | if (connector->funcs->dpms) |
6084 | serge | 4573 | ret = (*connector->funcs->dpms)(connector, (int)value); |
3031 | serge | 4574 | } else if (connector->funcs->set_property) |
4575 | ret = connector->funcs->set_property(connector, property, value); |
||
4576 | |||
4577 | /* store the property value if successful */ |
||
4578 | if (!ret) |
||
3192 | Serge | 4579 | drm_object_property_set_value(&connector->base, property, value); |
3031 | serge | 4580 | return ret; |
4581 | } |
||
4582 | |||
4583 | static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, |
||
4584 | struct drm_property *property, |
||
4585 | uint64_t value) |
||
4586 | { |
||
4587 | int ret = -EINVAL; |
||
4588 | struct drm_crtc *crtc = obj_to_crtc(obj); |
||
4589 | |||
4590 | if (crtc->funcs->set_property) |
||
4591 | ret = crtc->funcs->set_property(crtc, property, value); |
||
4592 | if (!ret) |
||
4593 | drm_object_property_set_value(obj, property, value); |
||
4594 | |||
4595 | return ret; |
||
4596 | } |
||
4597 | |||
5271 | serge | 4598 | /** |
4599 | * drm_mode_plane_set_obj_prop - set the value of a property |
||
4600 | * @plane: drm plane object to set property value for |
||
4601 | * @property: property to set |
||
4602 | * @value: value the property should be set to |
||
4603 | * |
||
4604 | * This functions sets a given property on a given plane object. This function |
||
4605 | * calls the driver's ->set_property callback and changes the software state of |
||
4606 | * the property if the callback succeeds. |
||
4607 | * |
||
4608 | * Returns: |
||
4609 | * Zero on success, error code on failure. |
||
4610 | */ |
||
4611 | int drm_mode_plane_set_obj_prop(struct drm_plane *plane, |
||
6084 | serge | 4612 | struct drm_property *property, |
4613 | uint64_t value) |
||
3031 | serge | 4614 | { |
4615 | int ret = -EINVAL; |
||
5271 | serge | 4616 | struct drm_mode_object *obj = &plane->base; |
3031 | serge | 4617 | |
4618 | if (plane->funcs->set_property) |
||
4619 | ret = plane->funcs->set_property(plane, property, value); |
||
4620 | if (!ret) |
||
4621 | drm_object_property_set_value(obj, property, value); |
||
4622 | |||
4623 | return ret; |
||
4624 | } |
||
5271 | serge | 4625 | EXPORT_SYMBOL(drm_mode_plane_set_obj_prop); |
3031 | serge | 4626 | |
5271 | serge | 4627 | #if 0 |
5060 | serge | 4628 | /** |
5271 | serge | 4629 | * drm_mode_obj_get_properties_ioctl - get the current value of a object's property |
5060 | serge | 4630 | * @dev: DRM device |
4631 | * @data: ioctl data |
||
4632 | * @file_priv: DRM file info |
||
4633 | * |
||
4634 | * This function retrieves the current value for an object's property. Compared |
||
4635 | * to the connector specific ioctl this one is extended to also work on crtc and |
||
4636 | * plane objects. |
||
4637 | * |
||
4638 | * Called by the user via ioctl. |
||
4639 | * |
||
4640 | * Returns: |
||
5271 | serge | 4641 | * Zero on success, negative errno on failure. |
5060 | serge | 4642 | */ |
3031 | serge | 4643 | int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, |
4644 | struct drm_file *file_priv) |
||
4645 | { |
||
4646 | struct drm_mode_obj_get_properties *arg = data; |
||
1123 | serge | 4647 | struct drm_mode_object *obj; |
3031 | serge | 4648 | int ret = 0; |
1123 | serge | 4649 | |
1963 | serge | 4650 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4651 | return -EINVAL; |
||
4652 | |||
3480 | Serge | 4653 | drm_modeset_lock_all(dev); |
1123 | serge | 4654 | |
3031 | serge | 4655 | obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); |
1123 | serge | 4656 | if (!obj) { |
4560 | Serge | 4657 | ret = -ENOENT; |
1123 | serge | 4658 | goto out; |
4659 | } |
||
3031 | serge | 4660 | if (!obj->properties) { |
4661 | ret = -EINVAL; |
||
4662 | goto out; |
||
4663 | } |
||
1123 | serge | 4664 | |
6084 | serge | 4665 | ret = get_properties(obj, file_priv->atomic, |
4666 | (uint32_t __user *)(unsigned long)(arg->props_ptr), |
||
4667 | (uint64_t __user *)(unsigned long)(arg->prop_values_ptr), |
||
4668 | &arg->count_props); |
||
3031 | serge | 4669 | |
4670 | out: |
||
3480 | Serge | 4671 | drm_modeset_unlock_all(dev); |
3031 | serge | 4672 | return ret; |
4673 | } |
||
1123 | serge | 4674 | |
5060 | serge | 4675 | /** |
4676 | * drm_mode_obj_set_property_ioctl - set the current value of an object's property |
||
4677 | * @dev: DRM device |
||
4678 | * @data: ioctl data |
||
4679 | * @file_priv: DRM file info |
||
4680 | * |
||
4681 | * This function sets the current value for an object's property. It also calls |
||
4682 | * into a driver's ->set_property callback to update the hardware state. |
||
4683 | * Compared to the connector specific ioctl this one is extended to also work on |
||
4684 | * crtc and plane objects. |
||
4685 | * |
||
4686 | * Called by the user via ioctl. |
||
4687 | * |
||
4688 | * Returns: |
||
5271 | serge | 4689 | * Zero on success, negative errno on failure. |
5060 | serge | 4690 | */ |
3031 | serge | 4691 | int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, |
4692 | struct drm_file *file_priv) |
||
4693 | { |
||
4694 | struct drm_mode_obj_set_property *arg = data; |
||
4695 | struct drm_mode_object *arg_obj; |
||
4696 | struct drm_mode_object *prop_obj; |
||
4697 | struct drm_property *property; |
||
6084 | serge | 4698 | int i, ret = -EINVAL; |
4699 | struct drm_mode_object *ref; |
||
3031 | serge | 4700 | |
4701 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
||
4702 | return -EINVAL; |
||
4703 | |||
3480 | Serge | 4704 | drm_modeset_lock_all(dev); |
3031 | serge | 4705 | |
4706 | arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); |
||
4560 | Serge | 4707 | if (!arg_obj) { |
4708 | ret = -ENOENT; |
||
1123 | serge | 4709 | goto out; |
4560 | Serge | 4710 | } |
3031 | serge | 4711 | if (!arg_obj->properties) |
4712 | goto out; |
||
1123 | serge | 4713 | |
3031 | serge | 4714 | for (i = 0; i < arg_obj->properties->count; i++) |
6084 | serge | 4715 | if (arg_obj->properties->properties[i]->base.id == arg->prop_id) |
3031 | serge | 4716 | break; |
4717 | |||
4718 | if (i == arg_obj->properties->count) |
||
1123 | serge | 4719 | goto out; |
4720 | |||
3031 | serge | 4721 | prop_obj = drm_mode_object_find(dev, arg->prop_id, |
4722 | DRM_MODE_OBJECT_PROPERTY); |
||
4560 | Serge | 4723 | if (!prop_obj) { |
4724 | ret = -ENOENT; |
||
6084 | serge | 4725 | goto out; |
4560 | Serge | 4726 | } |
3031 | serge | 4727 | property = obj_to_property(prop_obj); |
1123 | serge | 4728 | |
6084 | serge | 4729 | if (!drm_property_change_valid_get(property, arg->value, &ref)) |
4730 | goto out; |
||
3031 | serge | 4731 | |
4732 | switch (arg_obj->type) { |
||
4733 | case DRM_MODE_OBJECT_CONNECTOR: |
||
4734 | ret = drm_mode_connector_set_obj_prop(arg_obj, property, |
||
4735 | arg->value); |
||
4736 | break; |
||
4737 | case DRM_MODE_OBJECT_CRTC: |
||
4738 | ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); |
||
4739 | break; |
||
4740 | case DRM_MODE_OBJECT_PLANE: |
||
5271 | serge | 4741 | ret = drm_mode_plane_set_obj_prop(obj_to_plane(arg_obj), |
4742 | property, arg->value); |
||
6084 | serge | 4743 | break; |
4744 | } |
||
1123 | serge | 4745 | |
6084 | serge | 4746 | drm_property_change_valid_put(property, ref); |
4747 | |||
1123 | serge | 4748 | out: |
3480 | Serge | 4749 | drm_modeset_unlock_all(dev); |
1123 | serge | 4750 | return ret; |
4751 | } |
||
4752 | #endif |
||
4753 | |||
5060 | serge | 4754 | /** |
4755 | * drm_mode_connector_attach_encoder - attach a connector to an encoder |
||
4756 | * @connector: connector to attach |
||
4757 | * @encoder: encoder to attach @connector to |
||
4758 | * |
||
4759 | * This function links up a connector to an encoder. Note that the routing |
||
4760 | * restrictions between encoders and crtcs are exposed to userspace through the |
||
4761 | * possible_clones and possible_crtcs bitmasks. |
||
4762 | * |
||
4763 | * Returns: |
||
5271 | serge | 4764 | * Zero on success, negative errno on failure. |
5060 | serge | 4765 | */ |
1123 | serge | 4766 | int drm_mode_connector_attach_encoder(struct drm_connector *connector, |
4767 | struct drm_encoder *encoder) |
||
4768 | { |
||
4769 | int i; |
||
4770 | |||
4771 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
||
4772 | if (connector->encoder_ids[i] == 0) { |
||
4773 | connector->encoder_ids[i] = encoder->base.id; |
||
4774 | return 0; |
||
4775 | } |
||
4776 | } |
||
4777 | return -ENOMEM; |
||
4778 | } |
||
4779 | EXPORT_SYMBOL(drm_mode_connector_attach_encoder); |
||
4780 | |||
5060 | serge | 4781 | /** |
4782 | * drm_mode_crtc_set_gamma_size - set the gamma table size |
||
4783 | * @crtc: CRTC to set the gamma table size for |
||
4784 | * @gamma_size: size of the gamma table |
||
4785 | * |
||
4786 | * Drivers which support gamma tables should set this to the supported gamma |
||
4787 | * table size when initializing the CRTC. Currently the drm core only supports a |
||
4788 | * fixed gamma table size. |
||
4789 | * |
||
4790 | * Returns: |
||
5271 | serge | 4791 | * Zero on success, negative errno on failure. |
5060 | serge | 4792 | */ |
3031 | serge | 4793 | int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
6084 | serge | 4794 | int gamma_size) |
1123 | serge | 4795 | { |
4796 | crtc->gamma_size = gamma_size; |
||
4797 | |||
6084 | serge | 4798 | crtc->gamma_store = kcalloc(gamma_size, sizeof(uint16_t) * 3, |
4799 | GFP_KERNEL); |
||
1123 | serge | 4800 | if (!crtc->gamma_store) { |
4801 | crtc->gamma_size = 0; |
||
3031 | serge | 4802 | return -ENOMEM; |
1123 | serge | 4803 | } |
4804 | |||
3031 | serge | 4805 | return 0; |
1123 | serge | 4806 | } |
4807 | EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); |
||
4808 | |||
4809 | #if 0 |
||
5060 | serge | 4810 | /** |
4811 | * drm_mode_gamma_set_ioctl - set the gamma table |
||
4812 | * @dev: DRM device |
||
4813 | * @data: ioctl data |
||
4814 | * @file_priv: DRM file info |
||
4815 | * |
||
4816 | * Set the gamma table of a CRTC to the one passed in by the user. Userspace can |
||
4817 | * inquire the required gamma table size through drm_mode_gamma_get_ioctl. |
||
4818 | * |
||
4819 | * Called by the user via ioctl. |
||
4820 | * |
||
4821 | * Returns: |
||
5271 | serge | 4822 | * Zero on success, negative errno on failure. |
5060 | serge | 4823 | */ |
1123 | serge | 4824 | int drm_mode_gamma_set_ioctl(struct drm_device *dev, |
4825 | void *data, struct drm_file *file_priv) |
||
4826 | { |
||
4827 | struct drm_mode_crtc_lut *crtc_lut = data; |
||
4828 | struct drm_crtc *crtc; |
||
4829 | void *r_base, *g_base, *b_base; |
||
4830 | int size; |
||
4831 | int ret = 0; |
||
4832 | |||
1963 | serge | 4833 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4834 | return -EINVAL; |
||
4835 | |||
3480 | Serge | 4836 | drm_modeset_lock_all(dev); |
5060 | serge | 4837 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
4838 | if (!crtc) { |
||
4560 | Serge | 4839 | ret = -ENOENT; |
1123 | serge | 4840 | goto out; |
4841 | } |
||
4842 | |||
3031 | serge | 4843 | if (crtc->funcs->gamma_set == NULL) { |
4844 | ret = -ENOSYS; |
||
4845 | goto out; |
||
4846 | } |
||
4847 | |||
1123 | serge | 4848 | /* memcpy into gamma store */ |
4849 | if (crtc_lut->gamma_size != crtc->gamma_size) { |
||
4850 | ret = -EINVAL; |
||
4851 | goto out; |
||
4852 | } |
||
4853 | |||
4854 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); |
||
4855 | r_base = crtc->gamma_store; |
||
4856 | if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { |
||
4857 | ret = -EFAULT; |
||
4858 | goto out; |
||
4859 | } |
||
4860 | |||
4861 | g_base = r_base + size; |
||
4862 | if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { |
||
4863 | ret = -EFAULT; |
||
4864 | goto out; |
||
4865 | } |
||
4866 | |||
4867 | b_base = g_base + size; |
||
4868 | if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { |
||
4869 | ret = -EFAULT; |
||
4870 | goto out; |
||
4871 | } |
||
4872 | |||
1963 | serge | 4873 | crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); |
1123 | serge | 4874 | |
4875 | out: |
||
3480 | Serge | 4876 | drm_modeset_unlock_all(dev); |
1123 | serge | 4877 | return ret; |
4878 | |||
4879 | } |
||
4880 | |||
5060 | serge | 4881 | /** |
4882 | * drm_mode_gamma_get_ioctl - get the gamma table |
||
4883 | * @dev: DRM device |
||
4884 | * @data: ioctl data |
||
4885 | * @file_priv: DRM file info |
||
4886 | * |
||
4887 | * Copy the current gamma table into the storage provided. This also provides |
||
4888 | * the gamma table size the driver expects, which can be used to size the |
||
4889 | * allocated storage. |
||
4890 | * |
||
4891 | * Called by the user via ioctl. |
||
4892 | * |
||
4893 | * Returns: |
||
5271 | serge | 4894 | * Zero on success, negative errno on failure. |
5060 | serge | 4895 | */ |
1123 | serge | 4896 | int drm_mode_gamma_get_ioctl(struct drm_device *dev, |
4897 | void *data, struct drm_file *file_priv) |
||
4898 | { |
||
4899 | struct drm_mode_crtc_lut *crtc_lut = data; |
||
4900 | struct drm_crtc *crtc; |
||
4901 | void *r_base, *g_base, *b_base; |
||
4902 | int size; |
||
4903 | int ret = 0; |
||
4904 | |||
1963 | serge | 4905 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4906 | return -EINVAL; |
||
4907 | |||
3480 | Serge | 4908 | drm_modeset_lock_all(dev); |
5060 | serge | 4909 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
4910 | if (!crtc) { |
||
4560 | Serge | 4911 | ret = -ENOENT; |
1123 | serge | 4912 | goto out; |
4913 | } |
||
4914 | |||
4915 | /* memcpy into gamma store */ |
||
4916 | if (crtc_lut->gamma_size != crtc->gamma_size) { |
||
4917 | ret = -EINVAL; |
||
4918 | goto out; |
||
4919 | } |
||
4920 | |||
4921 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); |
||
4922 | r_base = crtc->gamma_store; |
||
4923 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { |
||
4924 | ret = -EFAULT; |
||
4925 | goto out; |
||
4926 | } |
||
4927 | |||
4928 | g_base = r_base + size; |
||
4929 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { |
||
4930 | ret = -EFAULT; |
||
4931 | goto out; |
||
4932 | } |
||
4933 | |||
4934 | b_base = g_base + size; |
||
4935 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { |
||
4936 | ret = -EFAULT; |
||
4937 | goto out; |
||
4938 | } |
||
4939 | out: |
||
3480 | Serge | 4940 | drm_modeset_unlock_all(dev); |
1123 | serge | 4941 | return ret; |
4942 | } |
||
4943 | |||
4944 | #endif |
||
1179 | serge | 4945 | |
4946 | |||
5060 | serge | 4947 | /** |
4948 | * drm_mode_config_reset - call ->reset callbacks |
||
4949 | * @dev: drm device |
||
4950 | * |
||
4951 | * This functions calls all the crtc's, encoder's and connector's ->reset |
||
4952 | * callback. Drivers can use this in e.g. their driver load or resume code to |
||
4953 | * reset hardware and software state. |
||
4954 | */ |
||
1963 | serge | 4955 | void drm_mode_config_reset(struct drm_device *dev) |
4956 | { |
||
4957 | struct drm_crtc *crtc; |
||
5271 | serge | 4958 | struct drm_plane *plane; |
1963 | serge | 4959 | struct drm_encoder *encoder; |
4960 | struct drm_connector *connector; |
||
4961 | |||
6084 | serge | 4962 | drm_for_each_plane(plane, dev) |
5271 | serge | 4963 | if (plane->funcs->reset) |
4964 | plane->funcs->reset(plane); |
||
4965 | |||
6084 | serge | 4966 | drm_for_each_crtc(crtc, dev) |
1963 | serge | 4967 | if (crtc->funcs->reset) |
4968 | crtc->funcs->reset(crtc); |
||
4969 | |||
6084 | serge | 4970 | drm_for_each_encoder(encoder, dev) |
1963 | serge | 4971 | if (encoder->funcs->reset) |
4972 | encoder->funcs->reset(encoder); |
||
4973 | |||
6084 | serge | 4974 | mutex_lock(&dev->mode_config.mutex); |
4975 | drm_for_each_connector(connector, dev) |
||
1963 | serge | 4976 | if (connector->funcs->reset) |
4977 | connector->funcs->reset(connector); |
||
6084 | serge | 4978 | mutex_unlock(&dev->mode_config.mutex); |
1963 | serge | 4979 | } |
4980 | EXPORT_SYMBOL(drm_mode_config_reset); |
||
3031 | serge | 4981 | /* |
4982 | * Just need to support RGB formats here for compat with code that doesn't |
||
4983 | * use pixel formats directly yet. |
||
4984 | */ |
||
4985 | void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, |
||
4986 | int *bpp) |
||
4987 | { |
||
4988 | switch (format) { |
||
3480 | Serge | 4989 | case DRM_FORMAT_C8: |
3031 | serge | 4990 | case DRM_FORMAT_RGB332: |
4991 | case DRM_FORMAT_BGR233: |
||
4992 | *depth = 8; |
||
4993 | *bpp = 8; |
||
4994 | break; |
||
4995 | case DRM_FORMAT_XRGB1555: |
||
4996 | case DRM_FORMAT_XBGR1555: |
||
4997 | case DRM_FORMAT_RGBX5551: |
||
4998 | case DRM_FORMAT_BGRX5551: |
||
4999 | case DRM_FORMAT_ARGB1555: |
||
5000 | case DRM_FORMAT_ABGR1555: |
||
5001 | case DRM_FORMAT_RGBA5551: |
||
5002 | case DRM_FORMAT_BGRA5551: |
||
5003 | *depth = 15; |
||
5004 | *bpp = 16; |
||
5005 | break; |
||
5006 | case DRM_FORMAT_RGB565: |
||
5007 | case DRM_FORMAT_BGR565: |
||
5008 | *depth = 16; |
||
5009 | *bpp = 16; |
||
5010 | break; |
||
5011 | case DRM_FORMAT_RGB888: |
||
5012 | case DRM_FORMAT_BGR888: |
||
5013 | *depth = 24; |
||
5014 | *bpp = 24; |
||
5015 | break; |
||
5016 | case DRM_FORMAT_XRGB8888: |
||
5017 | case DRM_FORMAT_XBGR8888: |
||
5018 | case DRM_FORMAT_RGBX8888: |
||
5019 | case DRM_FORMAT_BGRX8888: |
||
5020 | *depth = 24; |
||
5021 | *bpp = 32; |
||
5022 | break; |
||
5023 | case DRM_FORMAT_XRGB2101010: |
||
5024 | case DRM_FORMAT_XBGR2101010: |
||
5025 | case DRM_FORMAT_RGBX1010102: |
||
5026 | case DRM_FORMAT_BGRX1010102: |
||
5027 | case DRM_FORMAT_ARGB2101010: |
||
5028 | case DRM_FORMAT_ABGR2101010: |
||
5029 | case DRM_FORMAT_RGBA1010102: |
||
5030 | case DRM_FORMAT_BGRA1010102: |
||
5031 | *depth = 30; |
||
5032 | *bpp = 32; |
||
5033 | break; |
||
5034 | case DRM_FORMAT_ARGB8888: |
||
5035 | case DRM_FORMAT_ABGR8888: |
||
5036 | case DRM_FORMAT_RGBA8888: |
||
5037 | case DRM_FORMAT_BGRA8888: |
||
5038 | *depth = 32; |
||
5039 | *bpp = 32; |
||
5040 | break; |
||
5041 | default: |
||
4560 | Serge | 5042 | DRM_DEBUG_KMS("unsupported pixel format %s\n", |
5043 | drm_get_format_name(format)); |
||
3031 | serge | 5044 | *depth = 0; |
5045 | *bpp = 0; |
||
5046 | break; |
||
5047 | } |
||
5048 | } |
||
5049 | EXPORT_SYMBOL(drm_fb_get_bpp_depth); |
||
5050 | |||
5051 | /** |
||
5052 | * drm_format_num_planes - get the number of planes for format |
||
5053 | * @format: pixel format (DRM_FORMAT_*) |
||
5054 | * |
||
5060 | serge | 5055 | * Returns: |
3031 | serge | 5056 | * The number of planes used by the specified pixel format. |
5057 | */ |
||
5058 | int drm_format_num_planes(uint32_t format) |
||
5059 | { |
||
5060 | switch (format) { |
||
5061 | case DRM_FORMAT_YUV410: |
||
5062 | case DRM_FORMAT_YVU410: |
||
5063 | case DRM_FORMAT_YUV411: |
||
5064 | case DRM_FORMAT_YVU411: |
||
5065 | case DRM_FORMAT_YUV420: |
||
5066 | case DRM_FORMAT_YVU420: |
||
5067 | case DRM_FORMAT_YUV422: |
||
5068 | case DRM_FORMAT_YVU422: |
||
5069 | case DRM_FORMAT_YUV444: |
||
5070 | case DRM_FORMAT_YVU444: |
||
5071 | return 3; |
||
5072 | case DRM_FORMAT_NV12: |
||
5073 | case DRM_FORMAT_NV21: |
||
5074 | case DRM_FORMAT_NV16: |
||
5075 | case DRM_FORMAT_NV61: |
||
5076 | case DRM_FORMAT_NV24: |
||
5077 | case DRM_FORMAT_NV42: |
||
5078 | return 2; |
||
5079 | default: |
||
5080 | return 1; |
||
5081 | } |
||
5082 | } |
||
5083 | EXPORT_SYMBOL(drm_format_num_planes); |
||
5084 | |||
5085 | /** |
||
5086 | * drm_format_plane_cpp - determine the bytes per pixel value |
||
5087 | * @format: pixel format (DRM_FORMAT_*) |
||
5088 | * @plane: plane index |
||
5089 | * |
||
5060 | serge | 5090 | * Returns: |
3031 | serge | 5091 | * The bytes per pixel value for the specified plane. |
5092 | */ |
||
5093 | int drm_format_plane_cpp(uint32_t format, int plane) |
||
5094 | { |
||
5095 | unsigned int depth; |
||
5096 | int bpp; |
||
5097 | |||
5098 | if (plane >= drm_format_num_planes(format)) |
||
5099 | return 0; |
||
5100 | |||
5101 | switch (format) { |
||
5102 | case DRM_FORMAT_YUYV: |
||
5103 | case DRM_FORMAT_YVYU: |
||
5104 | case DRM_FORMAT_UYVY: |
||
5105 | case DRM_FORMAT_VYUY: |
||
5106 | return 2; |
||
5107 | case DRM_FORMAT_NV12: |
||
5108 | case DRM_FORMAT_NV21: |
||
5109 | case DRM_FORMAT_NV16: |
||
5110 | case DRM_FORMAT_NV61: |
||
5111 | case DRM_FORMAT_NV24: |
||
5112 | case DRM_FORMAT_NV42: |
||
5113 | return plane ? 2 : 1; |
||
5114 | case DRM_FORMAT_YUV410: |
||
5115 | case DRM_FORMAT_YVU410: |
||
5116 | case DRM_FORMAT_YUV411: |
||
5117 | case DRM_FORMAT_YVU411: |
||
5118 | case DRM_FORMAT_YUV420: |
||
5119 | case DRM_FORMAT_YVU420: |
||
5120 | case DRM_FORMAT_YUV422: |
||
5121 | case DRM_FORMAT_YVU422: |
||
5122 | case DRM_FORMAT_YUV444: |
||
5123 | case DRM_FORMAT_YVU444: |
||
5124 | return 1; |
||
5125 | default: |
||
5126 | drm_fb_get_bpp_depth(format, &depth, &bpp); |
||
5127 | return bpp >> 3; |
||
5128 | } |
||
5129 | } |
||
5130 | EXPORT_SYMBOL(drm_format_plane_cpp); |
||
5131 | |||
5132 | /** |
||
5133 | * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor |
||
5134 | * @format: pixel format (DRM_FORMAT_*) |
||
5135 | * |
||
5060 | serge | 5136 | * Returns: |
3031 | serge | 5137 | * The horizontal chroma subsampling factor for the |
5138 | * specified pixel format. |
||
5139 | */ |
||
5140 | int drm_format_horz_chroma_subsampling(uint32_t format) |
||
5141 | { |
||
5142 | switch (format) { |
||
5143 | case DRM_FORMAT_YUV411: |
||
5144 | case DRM_FORMAT_YVU411: |
||
5145 | case DRM_FORMAT_YUV410: |
||
5146 | case DRM_FORMAT_YVU410: |
||
5147 | return 4; |
||
5148 | case DRM_FORMAT_YUYV: |
||
5149 | case DRM_FORMAT_YVYU: |
||
5150 | case DRM_FORMAT_UYVY: |
||
5151 | case DRM_FORMAT_VYUY: |
||
5152 | case DRM_FORMAT_NV12: |
||
5153 | case DRM_FORMAT_NV21: |
||
5154 | case DRM_FORMAT_NV16: |
||
5155 | case DRM_FORMAT_NV61: |
||
5156 | case DRM_FORMAT_YUV422: |
||
5157 | case DRM_FORMAT_YVU422: |
||
5158 | case DRM_FORMAT_YUV420: |
||
5159 | case DRM_FORMAT_YVU420: |
||
5160 | return 2; |
||
5161 | default: |
||
5162 | return 1; |
||
5163 | } |
||
5164 | } |
||
5165 | EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); |
||
5166 | |||
5167 | /** |
||
5168 | * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor |
||
5169 | * @format: pixel format (DRM_FORMAT_*) |
||
5170 | * |
||
5060 | serge | 5171 | * Returns: |
3031 | serge | 5172 | * The vertical chroma subsampling factor for the |
5173 | * specified pixel format. |
||
5174 | */ |
||
5175 | int drm_format_vert_chroma_subsampling(uint32_t format) |
||
5176 | { |
||
5177 | switch (format) { |
||
5178 | case DRM_FORMAT_YUV410: |
||
5179 | case DRM_FORMAT_YVU410: |
||
5180 | return 4; |
||
5181 | case DRM_FORMAT_YUV420: |
||
5182 | case DRM_FORMAT_YVU420: |
||
5183 | case DRM_FORMAT_NV12: |
||
5184 | case DRM_FORMAT_NV21: |
||
5185 | return 2; |
||
5186 | default: |
||
5187 | return 1; |
||
5188 | } |
||
5189 | } |
||
5190 | EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); |
||
3746 | Serge | 5191 | |
5192 | /** |
||
5271 | serge | 5193 | * drm_rotation_simplify() - Try to simplify the rotation |
5194 | * @rotation: Rotation to be simplified |
||
5195 | * @supported_rotations: Supported rotations |
||
5196 | * |
||
5197 | * Attempt to simplify the rotation to a form that is supported. |
||
5198 | * Eg. if the hardware supports everything except DRM_REFLECT_X |
||
5199 | * one could call this function like this: |
||
5200 | * |
||
5201 | * drm_rotation_simplify(rotation, BIT(DRM_ROTATE_0) | |
||
5202 | * BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_180) | |
||
5203 | * BIT(DRM_ROTATE_270) | BIT(DRM_REFLECT_Y)); |
||
5204 | * |
||
5205 | * to eliminate the DRM_ROTATE_X flag. Depending on what kind of |
||
5206 | * transforms the hardware supports, this function may not |
||
5207 | * be able to produce a supported transform, so the caller should |
||
5208 | * check the result afterwards. |
||
5209 | */ |
||
5210 | unsigned int drm_rotation_simplify(unsigned int rotation, |
||
5211 | unsigned int supported_rotations) |
||
5212 | { |
||
5213 | if (rotation & ~supported_rotations) { |
||
5214 | rotation ^= BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y); |
||
6084 | serge | 5215 | rotation = (rotation & DRM_REFLECT_MASK) | |
5216 | BIT((ffs(rotation & DRM_ROTATE_MASK) + 1) % 4); |
||
5271 | serge | 5217 | } |
5218 | |||
5219 | return rotation; |
||
5220 | } |
||
5221 | EXPORT_SYMBOL(drm_rotation_simplify); |
||
5222 | |||
5223 | /** |
||
3746 | Serge | 5224 | * drm_mode_config_init - initialize DRM mode_configuration structure |
5225 | * @dev: DRM device |
||
5226 | * |
||
5227 | * Initialize @dev's mode_config structure, used for tracking the graphics |
||
5228 | * configuration of @dev. |
||
5229 | * |
||
5230 | * Since this initializes the modeset locks, no locking is possible. Which is no |
||
5231 | * problem, since this should happen single threaded at init time. It is the |
||
5232 | * driver's problem to ensure this guarantee. |
||
5233 | * |
||
5234 | */ |
||
5235 | void drm_mode_config_init(struct drm_device *dev) |
||
5236 | { |
||
5237 | mutex_init(&dev->mode_config.mutex); |
||
5060 | serge | 5238 | drm_modeset_lock_init(&dev->mode_config.connection_mutex); |
3746 | Serge | 5239 | mutex_init(&dev->mode_config.idr_mutex); |
5240 | mutex_init(&dev->mode_config.fb_lock); |
||
6084 | serge | 5241 | mutex_init(&dev->mode_config.blob_lock); |
3746 | Serge | 5242 | INIT_LIST_HEAD(&dev->mode_config.fb_list); |
5243 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); |
||
5244 | INIT_LIST_HEAD(&dev->mode_config.connector_list); |
||
5245 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); |
||
5246 | INIT_LIST_HEAD(&dev->mode_config.property_list); |
||
5247 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); |
||
5248 | INIT_LIST_HEAD(&dev->mode_config.plane_list); |
||
5249 | idr_init(&dev->mode_config.crtc_idr); |
||
5271 | serge | 5250 | idr_init(&dev->mode_config.tile_idr); |
3746 | Serge | 5251 | |
5252 | drm_modeset_lock_all(dev); |
||
6084 | serge | 5253 | drm_mode_create_standard_properties(dev); |
3746 | Serge | 5254 | drm_modeset_unlock_all(dev); |
5255 | |||
5256 | /* Just to be sure */ |
||
5257 | dev->mode_config.num_fb = 0; |
||
5258 | dev->mode_config.num_connector = 0; |
||
5259 | dev->mode_config.num_crtc = 0; |
||
5260 | dev->mode_config.num_encoder = 0; |
||
5060 | serge | 5261 | dev->mode_config.num_overlay_plane = 0; |
5262 | dev->mode_config.num_total_plane = 0; |
||
3746 | Serge | 5263 | } |
5264 | EXPORT_SYMBOL(drm_mode_config_init); |
||
5265 | |||
5060 | serge | 5266 | /** |
5267 | * drm_mode_config_cleanup - free up DRM mode_config info |
||
5268 | * @dev: DRM device |
||
5269 | * |
||
5270 | * Free up all the connectors and CRTCs associated with this DRM device, then |
||
5271 | * free up the framebuffers and associated buffer objects. |
||
5272 | * |
||
5273 | * Note that since this /should/ happen single-threaded at driver/device |
||
5274 | * teardown time, no locking is required. It's the driver's job to ensure that |
||
5275 | * this guarantee actually holds true. |
||
5276 | * |
||
5277 | * FIXME: cleanup any dangling user buffer objects too |
||
5278 | */ |
||
5271 | serge | 5279 | void drm_mode_config_cleanup(struct drm_device *dev) |
5280 | { |
||
5281 | struct drm_connector *connector, *ot; |
||
5282 | struct drm_crtc *crtc, *ct; |
||
5283 | struct drm_encoder *encoder, *enct; |
||
5284 | struct drm_framebuffer *fb, *fbt; |
||
5285 | struct drm_property *property, *pt; |
||
5286 | struct drm_property_blob *blob, *bt; |
||
5287 | struct drm_plane *plane, *plt; |
||
5288 | |||
5289 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, |
||
5290 | head) { |
||
5291 | encoder->funcs->destroy(encoder); |
||
5292 | } |
||
5293 | |||
5294 | list_for_each_entry_safe(connector, ot, |
||
5295 | &dev->mode_config.connector_list, head) { |
||
5296 | connector->funcs->destroy(connector); |
||
5297 | } |
||
5298 | |||
5299 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, |
||
5300 | head) { |
||
5301 | drm_property_destroy(dev, property); |
||
5302 | } |
||
5303 | |||
5304 | list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, |
||
6084 | serge | 5305 | head_global) { |
5306 | drm_property_unreference_blob(blob); |
||
5271 | serge | 5307 | } |
5308 | |||
5309 | /* |
||
5310 | * Single-threaded teardown context, so it's not required to grab the |
||
5311 | * fb_lock to protect against concurrent fb_list access. Contrary, it |
||
5312 | * would actually deadlock with the drm_framebuffer_cleanup function. |
||
5313 | * |
||
5314 | * Also, if there are any framebuffers left, that's a driver leak now, |
||
5315 | * so politely WARN about this. |
||
5316 | */ |
||
5317 | WARN_ON(!list_empty(&dev->mode_config.fb_list)); |
||
5318 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { |
||
6084 | serge | 5319 | drm_framebuffer_free(&fb->refcount); |
5271 | serge | 5320 | } |
5321 | |||
5322 | list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, |
||
5323 | head) { |
||
5324 | plane->funcs->destroy(plane); |
||
5325 | } |
||
5326 | |||
5327 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { |
||
5328 | crtc->funcs->destroy(crtc); |
||
5329 | } |
||
5330 | |||
5331 | idr_destroy(&dev->mode_config.tile_idr); |
||
5332 | idr_destroy(&dev->mode_config.crtc_idr); |
||
5333 | drm_modeset_lock_fini(&dev->mode_config.connection_mutex); |
||
5334 | } |
||
5335 | EXPORT_SYMBOL(drm_mode_config_cleanup); |
||
5336 | |||
5337 | struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, |
||
5338 | unsigned int supported_rotations) |
||
5339 | { |
||
5340 | static const struct drm_prop_enum_list props[] = { |
||
5341 | { DRM_ROTATE_0, "rotate-0" }, |
||
5342 | { DRM_ROTATE_90, "rotate-90" }, |
||
5343 | { DRM_ROTATE_180, "rotate-180" }, |
||
5344 | { DRM_ROTATE_270, "rotate-270" }, |
||
5345 | { DRM_REFLECT_X, "reflect-x" }, |
||
5346 | { DRM_REFLECT_Y, "reflect-y" }, |
||
5347 | }; |
||
5348 | |||
5349 | return drm_property_create_bitmask(dev, 0, "rotation", |
||
5350 | props, ARRAY_SIZE(props), |
||
5351 | supported_rotations); |
||
5352 | } |
||
5353 | EXPORT_SYMBOL(drm_mode_create_rotation_property); |
||
5354 | |||
5355 | /** |
||
5356 | * DOC: Tile group |
||
5357 | * |
||
5358 | * Tile groups are used to represent tiled monitors with a unique |
||
5359 | * integer identifier. Tiled monitors using DisplayID v1.3 have |
||
5360 | * a unique 8-byte handle, we store this in a tile group, so we |
||
5361 | * have a common identifier for all tiles in a monitor group. |
||
5362 | */ |
||
5363 | static void drm_tile_group_free(struct kref *kref) |
||
5364 | { |
||
5365 | struct drm_tile_group *tg = container_of(kref, struct drm_tile_group, refcount); |
||
5366 | struct drm_device *dev = tg->dev; |
||
5367 | mutex_lock(&dev->mode_config.idr_mutex); |
||
5368 | idr_remove(&dev->mode_config.tile_idr, tg->id); |
||
5369 | mutex_unlock(&dev->mode_config.idr_mutex); |
||
5370 | kfree(tg); |
||
5371 | } |
||
5372 | |||
5373 | /** |
||
5374 | * drm_mode_put_tile_group - drop a reference to a tile group. |
||
5375 | * @dev: DRM device |
||
5376 | * @tg: tile group to drop reference to. |
||
5377 | * |
||
5378 | * drop reference to tile group and free if 0. |
||
5379 | */ |
||
5380 | void drm_mode_put_tile_group(struct drm_device *dev, |
||
5381 | struct drm_tile_group *tg) |
||
5382 | { |
||
5383 | kref_put(&tg->refcount, drm_tile_group_free); |
||
5384 | } |
||
5385 | |||
5386 | /** |
||
5387 | * drm_mode_get_tile_group - get a reference to an existing tile group |
||
5388 | * @dev: DRM device |
||
5389 | * @topology: 8-bytes unique per monitor. |
||
5390 | * |
||
5391 | * Use the unique bytes to get a reference to an existing tile group. |
||
5392 | * |
||
5393 | * RETURNS: |
||
5394 | * tile group or NULL if not found. |
||
5395 | */ |
||
5396 | struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, |
||
5397 | char topology[8]) |
||
5398 | { |
||
5399 | struct drm_tile_group *tg; |
||
5400 | int id; |
||
5401 | mutex_lock(&dev->mode_config.idr_mutex); |
||
5402 | idr_for_each_entry(&dev->mode_config.tile_idr, tg, id) { |
||
5403 | if (!memcmp(tg->group_data, topology, 8)) { |
||
6084 | serge | 5404 | if (!kref_get_unless_zero(&tg->refcount)) |
5405 | tg = NULL; |
||
5271 | serge | 5406 | mutex_unlock(&dev->mode_config.idr_mutex); |
5407 | return tg; |
||
5408 | } |
||
5409 | } |
||
5410 | mutex_unlock(&dev->mode_config.idr_mutex); |
||
5411 | return NULL; |
||
5412 | } |
||
6084 | serge | 5413 | EXPORT_SYMBOL(drm_mode_get_tile_group); |
5271 | serge | 5414 | |
5415 | /** |
||
5416 | * drm_mode_create_tile_group - create a tile group from a displayid description |
||
5417 | * @dev: DRM device |
||
5418 | * @topology: 8-bytes unique per monitor. |
||
5419 | * |
||
5420 | * Create a tile group for the unique monitor, and get a unique |
||
5421 | * identifier for the tile group. |
||
5422 | * |
||
5423 | * RETURNS: |
||
5424 | * new tile group or error. |
||
5425 | */ |
||
5426 | struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, |
||
5427 | char topology[8]) |
||
5428 | { |
||
5429 | struct drm_tile_group *tg; |
||
5430 | int ret; |
||
5431 | |||
5432 | tg = kzalloc(sizeof(*tg), GFP_KERNEL); |
||
5433 | if (!tg) |
||
5434 | return ERR_PTR(-ENOMEM); |
||
5435 | |||
5436 | kref_init(&tg->refcount); |
||
5437 | memcpy(tg->group_data, topology, 8); |
||
5438 | tg->dev = dev; |
||
5439 | |||
5440 | mutex_lock(&dev->mode_config.idr_mutex); |
||
5441 | ret = idr_alloc(&dev->mode_config.tile_idr, tg, 1, 0, GFP_KERNEL); |
||
5442 | if (ret >= 0) { |
||
5443 | tg->id = ret; |
||
5444 | } else { |
||
5445 | kfree(tg); |
||
5446 | tg = ERR_PTR(ret); |
||
5447 | } |
||
5448 | |||
5449 | mutex_unlock(&dev->mode_config.idr_mutex); |
||
5450 | return tg; |
||
5451 | } |
||
6084 | serge | 5452 | EXPORT_SYMBOL(drm_mode_create_tile_group);>>>><>>>>>>>><>>>>=>=>>>>>><>><>><>><>><>><>>>>>>>><>><>>>>> |