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5060 | serge | 1 | /* |
2 | * Copyright © 2014 Intel Corporation |
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3 | * |
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4 | * Permission is hereby granted, free of charge, to any person obtaining a |
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5 | * copy of this software and associated documentation files (the |
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6 | * "Software"), to deal in the Software without restriction, including |
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7 | * without limitation the rights to use, copy, modify, merge, publish, |
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8 | * distribute, sub license, and/or sell copies of the Software, and to |
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9 | * permit persons to whom the Software is furnished to do so, subject to |
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10 | * the following conditions: |
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11 | * |
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12 | * The above copyright notice and this permission notice (including the |
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13 | * next paragraph) shall be included in all copies or substantial portions |
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14 | * of the Software. |
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15 | * |
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16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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21 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
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22 | * IN THE SOFTWARE. |
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23 | */ |
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24 | |||
25 | #include "i915_drv.h" |
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26 | |||
27 | struct i915_params i915 __read_mostly = { |
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28 | .modeset = 1, |
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29 | .panel_ignore_lid = 1, |
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30 | .powersave = 1, |
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31 | .semaphores = -1, |
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32 | .lvds_downclock = 0, |
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33 | .lvds_channel_mode = 0, |
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34 | .panel_use_ssc = -1, |
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35 | .vbt_sdvo_panel_type = -1, |
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36 | .enable_rc6 = -1, |
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37 | .enable_fbc = -1, |
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5354 | serge | 38 | .enable_execlists = 0, |
5060 | serge | 39 | .enable_hangcheck = true, |
40 | .enable_ppgtt = 1, |
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41 | .enable_psr = 0, |
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42 | .preliminary_hw_support = IS_ENABLED(CONFIG_DRM_I915_PRELIMINARY_HW_SUPPORT), |
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43 | .disable_power_well = 1, |
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44 | .enable_ips = 1, |
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45 | .fastboot = 0, |
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46 | .prefault_disable = 0, |
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47 | .reset = true, |
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48 | .invert_brightness = 0, |
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49 | .disable_display = 0, |
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50 | .enable_cmd_parser = 0, |
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51 | .disable_vtd_wa = 0, |
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52 | .use_mmio_flip = 0, |
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53 | .mmio_debug = 0, |
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54 | }; |
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55 | |||
56 | module_param_named(modeset, i915.modeset, int, 0400); |
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57 | MODULE_PARM_DESC(modeset, |
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58 | "Use kernel modesetting [KMS] (0=DRM_I915_KMS from .config, " |
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59 | "1=on, -1=force vga console preference [default])"); |
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60 | |||
61 | module_param_named(panel_ignore_lid, i915.panel_ignore_lid, int, 0600); |
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62 | MODULE_PARM_DESC(panel_ignore_lid, |
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63 | "Override lid status (0=autodetect, 1=autodetect disabled [default], " |
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64 | "-1=force lid closed, -2=force lid open)"); |
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65 | |||
66 | module_param_named(powersave, i915.powersave, int, 0600); |
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67 | MODULE_PARM_DESC(powersave, |
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68 | "Enable powersavings, fbc, downclocking, etc. (default: true)"); |
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69 | |||
5354 | serge | 70 | module_param_named_unsafe(semaphores, i915.semaphores, int, 0400); |
5060 | serge | 71 | MODULE_PARM_DESC(semaphores, |
72 | "Use semaphores for inter-ring sync " |
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73 | "(default: -1 (use per-chip defaults))"); |
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74 | |||
5354 | serge | 75 | module_param_named_unsafe(enable_rc6, i915.enable_rc6, int, 0400); |
5060 | serge | 76 | MODULE_PARM_DESC(enable_rc6, |
77 | "Enable power-saving render C-state 6. " |
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78 | "Different stages can be selected via bitmask values " |
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79 | "(0 = disable; 1 = enable rc6; 2 = enable deep rc6; 4 = enable deepest rc6). " |
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80 | "For example, 3 would enable rc6 and deep rc6, and 7 would enable everything. " |
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81 | "default: -1 (use per-chip default)"); |
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82 | |||
5354 | serge | 83 | module_param_named_unsafe(enable_fbc, i915.enable_fbc, int, 0600); |
5060 | serge | 84 | MODULE_PARM_DESC(enable_fbc, |
85 | "Enable frame buffer compression for power savings " |
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86 | "(default: -1 (use per-chip default))"); |
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87 | |||
88 | module_param_named(lvds_downclock, i915.lvds_downclock, int, 0400); |
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89 | MODULE_PARM_DESC(lvds_downclock, |
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90 | "Use panel (LVDS/eDP) downclocking for power savings " |
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91 | "(default: false)"); |
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92 | |||
93 | module_param_named(lvds_channel_mode, i915.lvds_channel_mode, int, 0600); |
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94 | MODULE_PARM_DESC(lvds_channel_mode, |
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95 | "Specify LVDS channel mode " |
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96 | "(0=probe BIOS [default], 1=single-channel, 2=dual-channel)"); |
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97 | |||
98 | module_param_named(lvds_use_ssc, i915.panel_use_ssc, int, 0600); |
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99 | MODULE_PARM_DESC(lvds_use_ssc, |
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100 | "Use Spread Spectrum Clock with panels [LVDS/eDP] " |
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101 | "(default: auto from VBT)"); |
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102 | |||
103 | module_param_named(vbt_sdvo_panel_type, i915.vbt_sdvo_panel_type, int, 0600); |
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104 | MODULE_PARM_DESC(vbt_sdvo_panel_type, |
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105 | "Override/Ignore selection of SDVO panel mode in the VBT " |
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106 | "(-2=ignore, -1=auto [default], index in VBT BIOS table)"); |
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107 | |||
108 | module_param_named(reset, i915.reset, bool, 0600); |
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109 | MODULE_PARM_DESC(reset, "Attempt GPU resets (default: true)"); |
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110 | |||
111 | module_param_named(enable_hangcheck, i915.enable_hangcheck, bool, 0644); |
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112 | MODULE_PARM_DESC(enable_hangcheck, |
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113 | "Periodically check GPU activity for detecting hangs. " |
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114 | "WARNING: Disabling this can cause system wide hangs. " |
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115 | "(default: true)"); |
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116 | |||
5354 | serge | 117 | module_param_named_unsafe(enable_ppgtt, i915.enable_ppgtt, int, 0400); |
5060 | serge | 118 | MODULE_PARM_DESC(enable_ppgtt, |
119 | "Override PPGTT usage. " |
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120 | "(-1=auto [default], 0=disabled, 1=aliasing, 2=full)"); |
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121 | |||
5354 | serge | 122 | module_param_named(enable_execlists, i915.enable_execlists, int, 0400); |
123 | MODULE_PARM_DESC(enable_execlists, |
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124 | "Override execlists usage. " |
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125 | "(-1=auto, 0=disabled [default], 1=enabled)"); |
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126 | |||
5060 | serge | 127 | module_param_named(enable_psr, i915.enable_psr, int, 0600); |
128 | MODULE_PARM_DESC(enable_psr, "Enable PSR (default: false)"); |
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129 | |||
130 | module_param_named(preliminary_hw_support, i915.preliminary_hw_support, int, 0600); |
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131 | MODULE_PARM_DESC(preliminary_hw_support, |
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132 | "Enable preliminary hardware support."); |
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133 | |||
134 | module_param_named(disable_power_well, i915.disable_power_well, int, 0600); |
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135 | MODULE_PARM_DESC(disable_power_well, |
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136 | "Disable the power well when possible (default: true)"); |
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137 | |||
138 | module_param_named(enable_ips, i915.enable_ips, int, 0600); |
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139 | MODULE_PARM_DESC(enable_ips, "Enable IPS (default: true)"); |
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140 | |||
141 | module_param_named(fastboot, i915.fastboot, bool, 0600); |
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142 | MODULE_PARM_DESC(fastboot, |
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143 | "Try to skip unnecessary mode sets at boot time (default: false)"); |
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144 | |||
145 | module_param_named(prefault_disable, i915.prefault_disable, bool, 0600); |
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146 | MODULE_PARM_DESC(prefault_disable, |
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147 | "Disable page prefaulting for pread/pwrite/reloc (default:false). " |
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148 | "For developers only."); |
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149 | |||
150 | module_param_named(invert_brightness, i915.invert_brightness, int, 0600); |
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151 | MODULE_PARM_DESC(invert_brightness, |
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152 | "Invert backlight brightness " |
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153 | "(-1 force normal, 0 machine defaults, 1 force inversion), please " |
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154 | "report PCI device ID, subsystem vendor and subsystem device ID " |
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155 | "to dri-devel@lists.freedesktop.org, if your machine needs it. " |
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156 | "It will then be included in an upcoming module version."); |
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157 | |||
158 | module_param_named(disable_display, i915.disable_display, bool, 0600); |
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159 | MODULE_PARM_DESC(disable_display, "Disable display (default: false)"); |
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160 | |||
161 | module_param_named(disable_vtd_wa, i915.disable_vtd_wa, bool, 0600); |
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162 | MODULE_PARM_DESC(disable_vtd_wa, "Disable all VT-d workarounds (default: false)"); |
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163 | |||
164 | module_param_named(enable_cmd_parser, i915.enable_cmd_parser, int, 0600); |
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165 | MODULE_PARM_DESC(enable_cmd_parser, |
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166 | "Enable command parsing (1=enabled [default], 0=disabled)"); |
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167 | |||
168 | module_param_named(use_mmio_flip, i915.use_mmio_flip, int, 0600); |
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169 | MODULE_PARM_DESC(use_mmio_flip, |
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170 | "use MMIO flips (-1=never, 0=driver discretion [default], 1=always)"); |
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171 | |||
172 | module_param_named(mmio_debug, i915.mmio_debug, bool, 0600); |
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173 | MODULE_PARM_DESC(mmio_debug, |
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174 | "Enable the MMIO debug code (default: false). This may negatively " |
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175 | "affect performance."); |