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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 | .semaphores = -1, |
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31 | .lvds_channel_mode = 0, |
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32 | .panel_use_ssc = -1, |
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33 | .vbt_sdvo_panel_type = -1, |
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34 | .enable_rc6 = -1, |
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35 | .enable_fbc = -1, |
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6084 | serge | 36 | .enable_execlists = -1, |
5060 | serge | 37 | .enable_hangcheck = true, |
6084 | serge | 38 | .enable_ppgtt = -1, |
5060 | serge | 39 | .enable_psr = 0, |
40 | .preliminary_hw_support = IS_ENABLED(CONFIG_DRM_I915_PRELIMINARY_HW_SUPPORT), |
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6084 | serge | 41 | .disable_power_well = -1, |
5060 | serge | 42 | .enable_ips = 1, |
6084 | serge | 43 | .fastboot = 1, |
5060 | serge | 44 | .prefault_disable = 0, |
6084 | serge | 45 | .load_detect_test = 0, |
5060 | serge | 46 | .reset = true, |
47 | .invert_brightness = 0, |
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48 | .disable_display = 0, |
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49 | .enable_cmd_parser = 0, |
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6084 | serge | 50 | .disable_vtd_wa = 1, |
5060 | serge | 51 | .use_mmio_flip = 0, |
52 | .mmio_debug = 0, |
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6084 | serge | 53 | .verbose_state_checks = 1, |
54 | .nuclear_pageflip = 0, |
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55 | .edp_vswing = 0, |
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56 | .enable_guc_submission = false, |
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57 | .guc_log_level = -1, |
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5060 | serge | 58 | }; |
59 | |||
60 | module_param_named(modeset, i915.modeset, int, 0400); |
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61 | MODULE_PARM_DESC(modeset, |
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6084 | serge | 62 | "Use kernel modesetting [KMS] (0=disable, " |
5060 | serge | 63 | "1=on, -1=force vga console preference [default])"); |
64 | |||
6084 | serge | 65 | module_param_named_unsafe(panel_ignore_lid, i915.panel_ignore_lid, int, 0600); |
5060 | serge | 66 | MODULE_PARM_DESC(panel_ignore_lid, |
67 | "Override lid status (0=autodetect, 1=autodetect disabled [default], " |
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68 | "-1=force lid closed, -2=force lid open)"); |
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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 | |||
6084 | serge | 88 | module_param_named_unsafe(lvds_channel_mode, i915.lvds_channel_mode, int, 0600); |
5060 | serge | 89 | MODULE_PARM_DESC(lvds_channel_mode, |
90 | "Specify LVDS channel mode " |
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91 | "(0=probe BIOS [default], 1=single-channel, 2=dual-channel)"); |
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92 | |||
6084 | serge | 93 | module_param_named_unsafe(lvds_use_ssc, i915.panel_use_ssc, int, 0600); |
5060 | serge | 94 | MODULE_PARM_DESC(lvds_use_ssc, |
95 | "Use Spread Spectrum Clock with panels [LVDS/eDP] " |
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96 | "(default: auto from VBT)"); |
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97 | |||
6084 | serge | 98 | module_param_named_unsafe(vbt_sdvo_panel_type, i915.vbt_sdvo_panel_type, int, 0600); |
5060 | serge | 99 | MODULE_PARM_DESC(vbt_sdvo_panel_type, |
100 | "Override/Ignore selection of SDVO panel mode in the VBT " |
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101 | "(-2=ignore, -1=auto [default], index in VBT BIOS table)"); |
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102 | |||
6084 | serge | 103 | module_param_named_unsafe(reset, i915.reset, bool, 0600); |
5060 | serge | 104 | MODULE_PARM_DESC(reset, "Attempt GPU resets (default: true)"); |
105 | |||
6084 | serge | 106 | module_param_named_unsafe(enable_hangcheck, i915.enable_hangcheck, bool, 0644); |
5060 | serge | 107 | MODULE_PARM_DESC(enable_hangcheck, |
108 | "Periodically check GPU activity for detecting hangs. " |
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109 | "WARNING: Disabling this can cause system wide hangs. " |
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110 | "(default: true)"); |
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111 | |||
5354 | serge | 112 | module_param_named_unsafe(enable_ppgtt, i915.enable_ppgtt, int, 0400); |
5060 | serge | 113 | MODULE_PARM_DESC(enable_ppgtt, |
114 | "Override PPGTT usage. " |
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115 | "(-1=auto [default], 0=disabled, 1=aliasing, 2=full)"); |
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116 | |||
6084 | serge | 117 | module_param_named_unsafe(enable_execlists, i915.enable_execlists, int, 0400); |
5354 | serge | 118 | MODULE_PARM_DESC(enable_execlists, |
119 | "Override execlists usage. " |
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6084 | serge | 120 | "(-1=auto [default], 0=disabled, 1=enabled)"); |
5354 | serge | 121 | |
6084 | serge | 122 | module_param_named_unsafe(enable_psr, i915.enable_psr, int, 0600); |
5060 | serge | 123 | MODULE_PARM_DESC(enable_psr, "Enable PSR (default: false)"); |
124 | |||
6084 | serge | 125 | module_param_named_unsafe(preliminary_hw_support, i915.preliminary_hw_support, int, 0600); |
5060 | serge | 126 | MODULE_PARM_DESC(preliminary_hw_support, |
127 | "Enable preliminary hardware support."); |
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128 | |||
6084 | serge | 129 | module_param_named_unsafe(disable_power_well, i915.disable_power_well, int, 0600); |
5060 | serge | 130 | MODULE_PARM_DESC(disable_power_well, |
6084 | serge | 131 | "Disable display power wells when possible " |
132 | "(-1=auto [default], 0=power wells always on, 1=power wells disabled when possible)"); |
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5060 | serge | 133 | |
6084 | serge | 134 | module_param_named_unsafe(enable_ips, i915.enable_ips, int, 0600); |
5060 | serge | 135 | MODULE_PARM_DESC(enable_ips, "Enable IPS (default: true)"); |
136 | |||
137 | module_param_named(fastboot, i915.fastboot, bool, 0600); |
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138 | MODULE_PARM_DESC(fastboot, |
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139 | "Try to skip unnecessary mode sets at boot time (default: false)"); |
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140 | |||
6084 | serge | 141 | module_param_named_unsafe(prefault_disable, i915.prefault_disable, bool, 0600); |
5060 | serge | 142 | MODULE_PARM_DESC(prefault_disable, |
143 | "Disable page prefaulting for pread/pwrite/reloc (default:false). " |
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144 | "For developers only."); |
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145 | |||
6084 | serge | 146 | module_param_named_unsafe(load_detect_test, i915.load_detect_test, bool, 0600); |
147 | MODULE_PARM_DESC(load_detect_test, |
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148 | "Force-enable the VGA load detect code for testing (default:false). " |
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149 | "For developers only."); |
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150 | |||
151 | module_param_named_unsafe(invert_brightness, i915.invert_brightness, int, 0600); |
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5060 | serge | 152 | MODULE_PARM_DESC(invert_brightness, |
153 | "Invert backlight brightness " |
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154 | "(-1 force normal, 0 machine defaults, 1 force inversion), please " |
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155 | "report PCI device ID, subsystem vendor and subsystem device ID " |
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156 | "to dri-devel@lists.freedesktop.org, if your machine needs it. " |
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157 | "It will then be included in an upcoming module version."); |
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158 | |||
159 | module_param_named(disable_display, i915.disable_display, bool, 0600); |
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160 | MODULE_PARM_DESC(disable_display, "Disable display (default: false)"); |
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161 | |||
6084 | serge | 162 | module_param_named_unsafe(disable_vtd_wa, i915.disable_vtd_wa, bool, 0600); |
5060 | serge | 163 | MODULE_PARM_DESC(disable_vtd_wa, "Disable all VT-d workarounds (default: false)"); |
164 | |||
6084 | serge | 165 | module_param_named_unsafe(enable_cmd_parser, i915.enable_cmd_parser, int, 0600); |
5060 | serge | 166 | MODULE_PARM_DESC(enable_cmd_parser, |
167 | "Enable command parsing (1=enabled [default], 0=disabled)"); |
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168 | |||
6084 | serge | 169 | module_param_named_unsafe(use_mmio_flip, i915.use_mmio_flip, int, 0600); |
5060 | serge | 170 | MODULE_PARM_DESC(use_mmio_flip, |
171 | "use MMIO flips (-1=never, 0=driver discretion [default], 1=always)"); |
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172 | |||
6084 | serge | 173 | module_param_named(mmio_debug, i915.mmio_debug, int, 0600); |
5060 | serge | 174 | MODULE_PARM_DESC(mmio_debug, |
6084 | serge | 175 | "Enable the MMIO debug code for the first N failures (default: off). " |
176 | "This may negatively affect performance."); |
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177 | |||
178 | module_param_named(verbose_state_checks, i915.verbose_state_checks, bool, 0600); |
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179 | MODULE_PARM_DESC(verbose_state_checks, |
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180 | "Enable verbose logs (ie. WARN_ON()) in case of unexpected hw state conditions."); |
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181 | |||
182 | module_param_named_unsafe(nuclear_pageflip, i915.nuclear_pageflip, bool, 0600); |
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183 | MODULE_PARM_DESC(nuclear_pageflip, |
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184 | "Force atomic modeset functionality; asynchronous mode is not yet supported. (default: false)."); |
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185 | |||
186 | /* WA to get away with the default setting in VBT for early platforms.Will be removed */ |
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187 | module_param_named_unsafe(edp_vswing, i915.edp_vswing, int, 0400); |
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188 | MODULE_PARM_DESC(edp_vswing, |
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189 | "Ignore/Override vswing pre-emph table selection from VBT " |
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190 | "(0=use value from vbt [default], 1=low power swing(200mV)," |
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191 | "2=default swing(400mV))"); |
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192 | |||
193 | module_param_named_unsafe(enable_guc_submission, i915.enable_guc_submission, bool, 0400); |
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194 | MODULE_PARM_DESC(enable_guc_submission, "Enable GuC submission (default:false)"); |
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195 | |||
196 | module_param_named(guc_log_level, i915.guc_log_level, int, 0400); |
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197 | MODULE_PARM_DESC(guc_log_level, |
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198 | "GuC firmware logging level (-1:disabled (default), 0-3:enabled)"); |