Rev 4080 | Go to most recent revision | Details | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
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4075 | Serge | 1 | /************************************************************************** |
2 | * |
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3 | * Copyright © 2011 VMware, Inc., Palo Alto, CA., USA |
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4 | * All Rights Reserved. |
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5 | * |
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6 | * Permission is hereby granted, free of charge, to any person obtaining a |
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7 | * copy of this software and associated documentation files (the |
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8 | * "Software"), to deal in the Software without restriction, including |
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9 | * without limitation the rights to use, copy, modify, merge, publish, |
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10 | * distribute, sub license, and/or sell copies of the Software, and to |
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11 | * permit persons to whom the Software is furnished to do so, subject to |
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12 | * the following conditions: |
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13 | * |
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14 | * The above copyright notice and this permission notice (including the |
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15 | * next paragraph) shall be included in all copies or substantial portions |
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16 | * of the Software. |
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17 | * |
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18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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20 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
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21 | * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, |
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22 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
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23 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
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24 | * USE OR OTHER DEALINGS IN THE SOFTWARE. |
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25 | * |
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26 | **************************************************************************/ |
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27 | |||
28 | #include "vmwgfx_kms.h" |
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29 | |||
30 | |||
31 | #define vmw_crtc_to_sou(x) \ |
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32 | container_of(x, struct vmw_screen_object_unit, base.crtc) |
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33 | #define vmw_encoder_to_sou(x) \ |
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34 | container_of(x, struct vmw_screen_object_unit, base.encoder) |
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35 | #define vmw_connector_to_sou(x) \ |
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36 | container_of(x, struct vmw_screen_object_unit, base.connector) |
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37 | |||
38 | struct vmw_screen_object_display { |
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39 | unsigned num_implicit; |
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40 | |||
41 | struct vmw_framebuffer *implicit_fb; |
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42 | }; |
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43 | |||
44 | /** |
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45 | * Display unit using screen objects. |
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46 | */ |
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47 | struct vmw_screen_object_unit { |
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48 | struct vmw_display_unit base; |
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49 | |||
50 | unsigned long buffer_size; /**< Size of allocated buffer */ |
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51 | struct vmw_dma_buffer *buffer; /**< Backing store buffer */ |
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52 | |||
53 | bool defined; |
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54 | bool active_implicit; |
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55 | }; |
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56 | |||
57 | static void vmw_sou_destroy(struct vmw_screen_object_unit *sou) |
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58 | { |
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59 | // vmw_display_unit_cleanup(&sou->base); |
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60 | kfree(sou); |
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61 | } |
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62 | |||
63 | |||
64 | /* |
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65 | * Screen Object Display Unit CRTC functions |
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66 | */ |
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67 | |||
68 | static void vmw_sou_crtc_destroy(struct drm_crtc *crtc) |
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69 | { |
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70 | vmw_sou_destroy(vmw_crtc_to_sou(crtc)); |
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71 | } |
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72 | |||
73 | static void vmw_sou_del_active(struct vmw_private *vmw_priv, |
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74 | struct vmw_screen_object_unit *sou) |
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75 | { |
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76 | struct vmw_screen_object_display *ld = vmw_priv->sou_priv; |
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77 | |||
78 | if (sou->active_implicit) { |
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79 | if (--(ld->num_implicit) == 0) |
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80 | ld->implicit_fb = NULL; |
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81 | sou->active_implicit = false; |
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82 | } |
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83 | } |
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84 | |||
85 | static void vmw_sou_add_active(struct vmw_private *vmw_priv, |
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86 | struct vmw_screen_object_unit *sou, |
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87 | struct vmw_framebuffer *vfb) |
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88 | { |
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89 | struct vmw_screen_object_display *ld = vmw_priv->sou_priv; |
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90 | |||
91 | BUG_ON(!ld->num_implicit && ld->implicit_fb); |
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92 | |||
93 | if (!sou->active_implicit && sou->base.is_implicit) { |
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94 | ld->implicit_fb = vfb; |
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95 | sou->active_implicit = true; |
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96 | ld->num_implicit++; |
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97 | } |
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98 | } |
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99 | |||
100 | /** |
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101 | * Send the fifo command to create a screen. |
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102 | */ |
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103 | static int vmw_sou_fifo_create(struct vmw_private *dev_priv, |
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104 | struct vmw_screen_object_unit *sou, |
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105 | uint32_t x, uint32_t y, |
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106 | struct drm_display_mode *mode) |
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107 | { |
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108 | size_t fifo_size; |
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109 | |||
110 | struct { |
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111 | struct { |
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112 | uint32_t cmdType; |
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113 | } header; |
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114 | SVGAScreenObject obj; |
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115 | } *cmd; |
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116 | |||
117 | BUG_ON(!sou->buffer); |
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118 | |||
119 | fifo_size = sizeof(*cmd); |
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120 | cmd = vmw_fifo_reserve(dev_priv, fifo_size); |
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121 | /* The hardware has hung, nothing we can do about it here. */ |
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122 | if (unlikely(cmd == NULL)) { |
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123 | DRM_ERROR("Fifo reserve failed.\n"); |
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124 | return -ENOMEM; |
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125 | } |
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126 | |||
127 | memset(cmd, 0, fifo_size); |
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128 | cmd->header.cmdType = SVGA_CMD_DEFINE_SCREEN; |
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129 | cmd->obj.structSize = sizeof(SVGAScreenObject); |
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130 | cmd->obj.id = sou->base.unit; |
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131 | cmd->obj.flags = SVGA_SCREEN_HAS_ROOT | |
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132 | (sou->base.unit == 0 ? SVGA_SCREEN_IS_PRIMARY : 0); |
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133 | cmd->obj.size.width = mode->hdisplay; |
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134 | cmd->obj.size.height = mode->vdisplay; |
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135 | if (sou->base.is_implicit) { |
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136 | cmd->obj.root.x = x; |
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137 | cmd->obj.root.y = y; |
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138 | } else { |
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139 | cmd->obj.root.x = sou->base.gui_x; |
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140 | cmd->obj.root.y = sou->base.gui_y; |
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141 | } |
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142 | |||
143 | /* Ok to assume that buffer is pinned in vram */ |
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144 | vmw_bo_get_guest_ptr(&sou->buffer->base, &cmd->obj.backingStore.ptr); |
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145 | cmd->obj.backingStore.pitch = mode->hdisplay * 4; |
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146 | |||
147 | vmw_fifo_commit(dev_priv, fifo_size); |
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148 | |||
149 | sou->defined = true; |
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150 | |||
151 | return 0; |
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152 | } |
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153 | |||
154 | /** |
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155 | * Send the fifo command to destroy a screen. |
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156 | */ |
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157 | static int vmw_sou_fifo_destroy(struct vmw_private *dev_priv, |
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158 | struct vmw_screen_object_unit *sou) |
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159 | { |
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160 | size_t fifo_size; |
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161 | int ret; |
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162 | |||
163 | struct { |
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164 | struct { |
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165 | uint32_t cmdType; |
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166 | } header; |
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167 | SVGAFifoCmdDestroyScreen body; |
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168 | } *cmd; |
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169 | |||
170 | /* no need to do anything */ |
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171 | if (unlikely(!sou->defined)) |
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172 | return 0; |
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173 | |||
174 | fifo_size = sizeof(*cmd); |
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175 | cmd = vmw_fifo_reserve(dev_priv, fifo_size); |
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176 | /* the hardware has hung, nothing we can do about it here */ |
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177 | if (unlikely(cmd == NULL)) { |
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178 | DRM_ERROR("Fifo reserve failed.\n"); |
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179 | return -ENOMEM; |
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180 | } |
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181 | |||
182 | memset(cmd, 0, fifo_size); |
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183 | cmd->header.cmdType = SVGA_CMD_DESTROY_SCREEN; |
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184 | cmd->body.screenId = sou->base.unit; |
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185 | |||
186 | vmw_fifo_commit(dev_priv, fifo_size); |
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187 | |||
188 | /* Force sync */ |
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189 | ret = vmw_fallback_wait(dev_priv, false, true, 0, false, 3*HZ); |
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190 | if (unlikely(ret != 0)) |
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191 | DRM_ERROR("Failed to sync with HW"); |
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192 | else |
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193 | sou->defined = false; |
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194 | |||
195 | return ret; |
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196 | } |
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197 | |||
198 | /** |
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199 | * Free the backing store. |
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200 | */ |
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201 | static void vmw_sou_backing_free(struct vmw_private *dev_priv, |
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202 | struct vmw_screen_object_unit *sou) |
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203 | { |
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204 | struct ttm_buffer_object *bo; |
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205 | |||
206 | if (unlikely(sou->buffer == NULL)) |
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207 | return; |
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208 | |||
209 | bo = &sou->buffer->base; |
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210 | ttm_bo_unref(&bo); |
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211 | sou->buffer = NULL; |
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212 | sou->buffer_size = 0; |
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213 | } |
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214 | |||
215 | /** |
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216 | * Allocate the backing store for the buffer. |
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217 | */ |
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218 | static int vmw_sou_backing_alloc(struct vmw_private *dev_priv, |
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219 | struct vmw_screen_object_unit *sou, |
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220 | unsigned long size) |
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221 | { |
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222 | int ret; |
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223 | |||
224 | if (sou->buffer_size == size) |
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225 | return 0; |
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226 | |||
227 | if (sou->buffer) |
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228 | vmw_sou_backing_free(dev_priv, sou); |
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229 | |||
230 | sou->buffer = kzalloc(sizeof(*sou->buffer), GFP_KERNEL); |
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231 | if (unlikely(sou->buffer == NULL)) |
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232 | return -ENOMEM; |
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233 | |||
234 | /* After we have alloced the backing store might not be able to |
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235 | * resume the overlays, this is preferred to failing to alloc. |
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236 | */ |
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237 | // vmw_overlay_pause_all(dev_priv); |
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238 | ret = vmw_dmabuf_init(dev_priv, sou->buffer, size, |
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239 | &vmw_vram_ne_placement, |
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240 | false, &vmw_dmabuf_bo_free); |
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241 | // vmw_overlay_resume_all(dev_priv); |
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242 | |||
243 | if (unlikely(ret != 0)) |
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244 | sou->buffer = NULL; /* vmw_dmabuf_init frees on error */ |
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245 | else |
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246 | sou->buffer_size = size; |
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247 | |||
248 | return ret; |
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249 | } |
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250 | |||
251 | static int vmw_sou_crtc_set_config(struct drm_mode_set *set) |
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252 | { |
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253 | struct vmw_private *dev_priv; |
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254 | struct vmw_screen_object_unit *sou; |
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255 | struct drm_connector *connector; |
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256 | struct drm_display_mode *mode; |
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257 | struct drm_encoder *encoder; |
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258 | struct vmw_framebuffer *vfb; |
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259 | struct drm_framebuffer *fb; |
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260 | struct drm_crtc *crtc; |
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261 | int ret = 0; |
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262 | |||
263 | if (!set) |
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264 | return -EINVAL; |
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265 | |||
266 | if (!set->crtc) |
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267 | return -EINVAL; |
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268 | |||
269 | /* get the sou */ |
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270 | crtc = set->crtc; |
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271 | sou = vmw_crtc_to_sou(crtc); |
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272 | vfb = set->fb ? vmw_framebuffer_to_vfb(set->fb) : NULL; |
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273 | dev_priv = vmw_priv(crtc->dev); |
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274 | |||
275 | if (set->num_connectors > 1) { |
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276 | DRM_ERROR("to many connectors\n"); |
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277 | return -EINVAL; |
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278 | } |
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279 | |||
280 | if (set->num_connectors == 1 && |
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281 | set->connectors[0] != &sou->base.connector) { |
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282 | DRM_ERROR("connector doesn't match %p %p\n", |
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283 | set->connectors[0], &sou->base.connector); |
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284 | return -EINVAL; |
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285 | } |
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286 | |||
287 | /* sou only supports one fb active at the time */ |
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288 | if (sou->base.is_implicit && |
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289 | dev_priv->sou_priv->implicit_fb && vfb && |
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290 | !(dev_priv->sou_priv->num_implicit == 1 && |
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291 | sou->active_implicit) && |
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292 | dev_priv->sou_priv->implicit_fb != vfb) { |
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293 | DRM_ERROR("Multiple framebuffers not supported\n"); |
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294 | return -EINVAL; |
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295 | } |
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296 | |||
297 | /* since they always map one to one these are safe */ |
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298 | connector = &sou->base.connector; |
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299 | encoder = &sou->base.encoder; |
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300 | |||
301 | /* should we turn the crtc off */ |
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302 | if (set->num_connectors == 0 || !set->mode || !set->fb) { |
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303 | ret = vmw_sou_fifo_destroy(dev_priv, sou); |
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304 | /* the hardware has hung don't do anything more */ |
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305 | if (unlikely(ret != 0)) |
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306 | return ret; |
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307 | |||
308 | connector->encoder = NULL; |
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309 | encoder->crtc = NULL; |
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310 | crtc->fb = NULL; |
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311 | crtc->x = 0; |
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312 | crtc->y = 0; |
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313 | |||
314 | vmw_sou_del_active(dev_priv, sou); |
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315 | |||
316 | vmw_sou_backing_free(dev_priv, sou); |
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317 | |||
318 | return 0; |
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319 | } |
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320 | |||
321 | |||
322 | /* we now know we want to set a mode */ |
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323 | mode = set->mode; |
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324 | fb = set->fb; |
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325 | |||
326 | if (set->x + mode->hdisplay > fb->width || |
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327 | set->y + mode->vdisplay > fb->height) { |
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328 | DRM_ERROR("set outside of framebuffer\n"); |
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329 | return -EINVAL; |
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330 | } |
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331 | |||
332 | // vmw_fb_off(dev_priv); |
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333 | |||
334 | if (mode->hdisplay != crtc->mode.hdisplay || |
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335 | mode->vdisplay != crtc->mode.vdisplay) { |
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336 | /* no need to check if depth is different, because backing |
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337 | * store depth is forced to 4 by the device. |
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338 | */ |
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339 | |||
340 | ret = vmw_sou_fifo_destroy(dev_priv, sou); |
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341 | /* the hardware has hung don't do anything more */ |
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342 | if (unlikely(ret != 0)) |
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343 | return ret; |
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344 | |||
345 | vmw_sou_backing_free(dev_priv, sou); |
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346 | } |
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347 | |||
348 | if (!sou->buffer) { |
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349 | /* forced to depth 4 by the device */ |
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350 | size_t size = mode->hdisplay * mode->vdisplay * 4; |
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351 | ret = vmw_sou_backing_alloc(dev_priv, sou, size); |
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352 | if (unlikely(ret != 0)) |
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353 | return ret; |
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354 | } |
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355 | |||
356 | ret = vmw_sou_fifo_create(dev_priv, sou, set->x, set->y, mode); |
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357 | if (unlikely(ret != 0)) { |
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358 | /* |
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359 | * We are in a bit of a situation here, the hardware has |
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360 | * hung and we may or may not have a buffer hanging of |
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361 | * the screen object, best thing to do is not do anything |
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362 | * if we where defined, if not just turn the crtc of. |
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363 | * Not what userspace wants but it needs to htfu. |
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364 | */ |
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365 | if (sou->defined) |
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366 | return ret; |
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367 | |||
368 | connector->encoder = NULL; |
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369 | encoder->crtc = NULL; |
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370 | crtc->fb = NULL; |
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371 | crtc->x = 0; |
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372 | crtc->y = 0; |
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373 | |||
374 | return ret; |
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375 | } |
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376 | |||
377 | vmw_sou_add_active(dev_priv, sou, vfb); |
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378 | |||
379 | connector->encoder = encoder; |
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380 | encoder->crtc = crtc; |
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381 | crtc->mode = *mode; |
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382 | crtc->fb = fb; |
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383 | crtc->x = set->x; |
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384 | crtc->y = set->y; |
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385 | |||
386 | return 0; |
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387 | } |
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388 | |||
389 | static struct drm_crtc_funcs vmw_screen_object_crtc_funcs = { |
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390 | .save = vmw_du_crtc_save, |
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391 | .restore = vmw_du_crtc_restore, |
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392 | // .cursor_set = vmw_du_crtc_cursor_set, |
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393 | // .cursor_move = vmw_du_crtc_cursor_move, |
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394 | .gamma_set = vmw_du_crtc_gamma_set, |
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395 | .destroy = vmw_sou_crtc_destroy, |
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396 | .set_config = vmw_sou_crtc_set_config, |
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397 | // .page_flip = vmw_du_page_flip, |
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398 | }; |
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399 | |||
400 | /* |
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401 | * Screen Object Display Unit encoder functions |
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402 | */ |
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403 | |||
404 | static void vmw_sou_encoder_destroy(struct drm_encoder *encoder) |
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405 | { |
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406 | vmw_sou_destroy(vmw_encoder_to_sou(encoder)); |
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407 | } |
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408 | |||
409 | static struct drm_encoder_funcs vmw_screen_object_encoder_funcs = { |
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410 | .destroy = vmw_sou_encoder_destroy, |
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411 | }; |
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412 | |||
413 | /* |
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414 | * Screen Object Display Unit connector functions |
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415 | */ |
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416 | |||
417 | static void vmw_sou_connector_destroy(struct drm_connector *connector) |
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418 | { |
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419 | vmw_sou_destroy(vmw_connector_to_sou(connector)); |
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420 | } |
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421 | |||
422 | static struct drm_connector_funcs vmw_legacy_connector_funcs = { |
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423 | .dpms = vmw_du_connector_dpms, |
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424 | .save = vmw_du_connector_save, |
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425 | .restore = vmw_du_connector_restore, |
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426 | .detect = vmw_du_connector_detect, |
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427 | .fill_modes = vmw_du_connector_fill_modes, |
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428 | .set_property = vmw_du_connector_set_property, |
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429 | .destroy = vmw_sou_connector_destroy, |
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430 | }; |
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431 | |||
432 | static int vmw_sou_init(struct vmw_private *dev_priv, unsigned unit) |
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433 | { |
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434 | struct vmw_screen_object_unit *sou; |
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435 | struct drm_device *dev = dev_priv->dev; |
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436 | struct drm_connector *connector; |
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437 | struct drm_encoder *encoder; |
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438 | struct drm_crtc *crtc; |
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439 | |||
440 | sou = kzalloc(sizeof(*sou), GFP_KERNEL); |
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441 | if (!sou) |
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442 | return -ENOMEM; |
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443 | |||
444 | sou->base.unit = unit; |
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445 | crtc = &sou->base.crtc; |
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446 | encoder = &sou->base.encoder; |
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447 | connector = &sou->base.connector; |
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448 | |||
449 | sou->active_implicit = false; |
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450 | |||
451 | sou->base.pref_active = (unit == 0); |
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452 | sou->base.pref_width = dev_priv->initial_width; |
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453 | sou->base.pref_height = dev_priv->initial_height; |
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454 | sou->base.pref_mode = NULL; |
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455 | sou->base.is_implicit = true; |
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456 | |||
457 | drm_connector_init(dev, connector, &vmw_legacy_connector_funcs, |
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458 | DRM_MODE_CONNECTOR_VIRTUAL); |
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459 | connector->status = vmw_du_connector_detect(connector, true); |
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460 | |||
461 | drm_encoder_init(dev, encoder, &vmw_screen_object_encoder_funcs, |
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462 | DRM_MODE_ENCODER_VIRTUAL); |
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463 | drm_mode_connector_attach_encoder(connector, encoder); |
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464 | encoder->possible_crtcs = (1 << unit); |
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465 | encoder->possible_clones = 0; |
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466 | |||
467 | drm_crtc_init(dev, crtc, &vmw_screen_object_crtc_funcs); |
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468 | |||
469 | drm_mode_crtc_set_gamma_size(crtc, 256); |
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470 | |||
471 | drm_object_attach_property(&connector->base, |
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472 | dev->mode_config.dirty_info_property, |
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473 | 1); |
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474 | |||
475 | return 0; |
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476 | } |
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477 | |||
478 | int vmw_kms_init_screen_object_display(struct vmw_private *dev_priv) |
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479 | { |
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480 | struct drm_device *dev = dev_priv->dev; |
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481 | int i, ret; |
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482 | |||
483 | ENTER(); |
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484 | |||
485 | if (dev_priv->sou_priv) { |
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486 | DRM_INFO("sou system already on\n"); |
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487 | return -EINVAL; |
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488 | } |
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489 | |||
490 | if (!(dev_priv->capabilities & SVGA_CAP_SCREEN_OBJECT_2)) { |
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491 | DRM_INFO("Not using screen objects," |
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492 | " missing cap SCREEN_OBJECT_2\n"); |
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493 | return -ENOSYS; |
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494 | } |
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495 | |||
496 | ret = -ENOMEM; |
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497 | dev_priv->sou_priv = kmalloc(sizeof(*dev_priv->sou_priv), GFP_KERNEL); |
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498 | if (unlikely(!dev_priv->sou_priv)) |
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499 | goto err_no_mem; |
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500 | |||
501 | dev_priv->sou_priv->num_implicit = 0; |
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502 | dev_priv->sou_priv->implicit_fb = NULL; |
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503 | |||
504 | // ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS); |
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505 | // if (unlikely(ret != 0)) |
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506 | // goto err_free; |
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507 | |||
508 | ret = drm_mode_create_dirty_info_property(dev); |
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509 | if (unlikely(ret != 0)) |
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510 | goto err_vblank_cleanup; |
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511 | |||
512 | for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i) |
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513 | vmw_sou_init(dev_priv, i); |
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514 | |||
515 | DRM_INFO("Screen objects system initialized\n"); |
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516 | |||
517 | LEAVE(); |
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518 | return 0; |
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519 | |||
520 | err_vblank_cleanup: |
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521 | // drm_vblank_cleanup(dev); |
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522 | err_free: |
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523 | kfree(dev_priv->sou_priv); |
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524 | dev_priv->sou_priv = NULL; |
||
525 | err_no_mem: |
||
526 | return ret; |
||
527 | } |
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528 | |||
529 | int vmw_kms_close_screen_object_display(struct vmw_private *dev_priv) |
||
530 | { |
||
531 | struct drm_device *dev = dev_priv->dev; |
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532 | |||
533 | if (!dev_priv->sou_priv) |
||
534 | return -ENOSYS; |
||
535 | |||
536 | // drm_vblank_cleanup(dev); |
||
537 | |||
538 | kfree(dev_priv->sou_priv); |
||
539 | |||
540 | return 0; |
||
541 | } |
||
542 | |||
543 | /** |
||
544 | * Returns if this unit can be page flipped. |
||
545 | * Must be called with the mode_config mutex held. |
||
546 | */ |
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547 | bool vmw_kms_screen_object_flippable(struct vmw_private *dev_priv, |
||
548 | struct drm_crtc *crtc) |
||
549 | { |
||
550 | struct vmw_screen_object_unit *sou = vmw_crtc_to_sou(crtc); |
||
551 | |||
552 | if (!sou->base.is_implicit) |
||
553 | return true; |
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554 | |||
555 | if (dev_priv->sou_priv->num_implicit != 1) |
||
556 | return false; |
||
557 | |||
558 | return true; |
||
559 | } |
||
560 | |||
561 | /** |
||
562 | * Update the implicit fb to the current fb of this crtc. |
||
563 | * Must be called with the mode_config mutex held. |
||
564 | */ |
||
565 | void vmw_kms_screen_object_update_implicit_fb(struct vmw_private *dev_priv, |
||
566 | struct drm_crtc *crtc) |
||
567 | { |
||
568 | struct vmw_screen_object_unit *sou = vmw_crtc_to_sou(crtc); |
||
569 | |||
570 | BUG_ON(!sou->base.is_implicit); |
||
571 | |||
572 | dev_priv->sou_priv->implicit_fb = |
||
573 | vmw_framebuffer_to_vfb(sou->base.crtc.fb); |
||
574 | }>><>>> |