i915_params.c revision 1.3.6.1
1 /* $NetBSD: i915_params.c,v 1.3.6.1 2020/02/29 20:20:14 ad Exp $ */ 2 3 /* 4 * Copyright 2014 Intel Corporation 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 23 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 24 * IN THE SOFTWARE. 25 */ 26 27 #include <sys/cdefs.h> 28 __KERNEL_RCSID(0, "$NetBSD: i915_params.c,v 1.3.6.1 2020/02/29 20:20:14 ad Exp $"); 29 30 #include "i915_drv.h" 31 32 struct i915_params i915 __read_mostly = { 33 .modeset = -1, 34 .panel_ignore_lid = 1, 35 .semaphores = -1, 36 .lvds_channel_mode = 0, 37 .panel_use_ssc = -1, 38 .vbt_sdvo_panel_type = -1, 39 .enable_rc6 = -1, 40 .enable_fbc = -1, 41 .enable_execlists = -1, 42 .enable_hangcheck = true, 43 .enable_ppgtt = -1, 44 .enable_psr = 0, 45 .preliminary_hw_support = IS_ENABLED(CONFIG_DRM_I915_PRELIMINARY_HW_SUPPORT), 46 .disable_power_well = -1, 47 .enable_ips = 1, 48 .fastboot = 0, 49 .prefault_disable = 0, 50 .load_detect_test = 0, 51 .reset = true, 52 .invert_brightness = 0, 53 .disable_display = 0, 54 .enable_cmd_parser = 1, 55 .disable_vtd_wa = 0, 56 .use_mmio_flip = 0, 57 .mmio_debug = 0, 58 .verbose_state_checks = 1, 59 .nuclear_pageflip = 0, 60 .edp_vswing = 0, 61 .enable_guc_submission = false, 62 .guc_log_level = -1, 63 }; 64 65 module_param_named(modeset, i915.modeset, int, 0400); 66 MODULE_PARM_DESC(modeset, 67 "Use kernel modesetting [KMS] (0=disable, " 68 "1=on, -1=force vga console preference [default])"); 69 70 module_param_named_unsafe(panel_ignore_lid, i915.panel_ignore_lid, int, 0600); 71 MODULE_PARM_DESC(panel_ignore_lid, 72 "Override lid status (0=autodetect, 1=autodetect disabled [default], " 73 "-1=force lid closed, -2=force lid open)"); 74 75 module_param_named_unsafe(semaphores, i915.semaphores, int, 0400); 76 MODULE_PARM_DESC(semaphores, 77 "Use semaphores for inter-ring sync " 78 "(default: -1 (use per-chip defaults))"); 79 80 module_param_named_unsafe(enable_rc6, i915.enable_rc6, int, 0400); 81 MODULE_PARM_DESC(enable_rc6, 82 "Enable power-saving render C-state 6. " 83 "Different stages can be selected via bitmask values " 84 "(0 = disable; 1 = enable rc6; 2 = enable deep rc6; 4 = enable deepest rc6). " 85 "For example, 3 would enable rc6 and deep rc6, and 7 would enable everything. " 86 "default: -1 (use per-chip default)"); 87 88 module_param_named_unsafe(enable_fbc, i915.enable_fbc, int, 0600); 89 MODULE_PARM_DESC(enable_fbc, 90 "Enable frame buffer compression for power savings " 91 "(default: -1 (use per-chip default))"); 92 93 module_param_named_unsafe(lvds_channel_mode, i915.lvds_channel_mode, int, 0600); 94 MODULE_PARM_DESC(lvds_channel_mode, 95 "Specify LVDS channel mode " 96 "(0=probe BIOS [default], 1=single-channel, 2=dual-channel)"); 97 98 module_param_named_unsafe(lvds_use_ssc, i915.panel_use_ssc, int, 0600); 99 MODULE_PARM_DESC(lvds_use_ssc, 100 "Use Spread Spectrum Clock with panels [LVDS/eDP] " 101 "(default: auto from VBT)"); 102 103 module_param_named_unsafe(vbt_sdvo_panel_type, i915.vbt_sdvo_panel_type, int, 0600); 104 MODULE_PARM_DESC(vbt_sdvo_panel_type, 105 "Override/Ignore selection of SDVO panel mode in the VBT " 106 "(-2=ignore, -1=auto [default], index in VBT BIOS table)"); 107 108 module_param_named_unsafe(reset, i915.reset, bool, 0600); 109 MODULE_PARM_DESC(reset, "Attempt GPU resets (default: true)"); 110 111 module_param_named_unsafe(enable_hangcheck, i915.enable_hangcheck, bool, 0644); 112 MODULE_PARM_DESC(enable_hangcheck, 113 "Periodically check GPU activity for detecting hangs. " 114 "WARNING: Disabling this can cause system wide hangs. " 115 "(default: true)"); 116 117 module_param_named_unsafe(enable_ppgtt, i915.enable_ppgtt, int, 0400); 118 MODULE_PARM_DESC(enable_ppgtt, 119 "Override PPGTT usage. " 120 "(-1=auto [default], 0=disabled, 1=aliasing, 2=full)"); 121 122 module_param_named_unsafe(enable_execlists, i915.enable_execlists, int, 0400); 123 MODULE_PARM_DESC(enable_execlists, 124 "Override execlists usage. " 125 "(-1=auto [default], 0=disabled, 1=enabled)"); 126 127 module_param_named_unsafe(enable_psr, i915.enable_psr, int, 0600); 128 MODULE_PARM_DESC(enable_psr, "Enable PSR (default: false)"); 129 130 module_param_named_unsafe(preliminary_hw_support, i915.preliminary_hw_support, int, 0600); 131 MODULE_PARM_DESC(preliminary_hw_support, 132 "Enable preliminary hardware support."); 133 134 module_param_named_unsafe(disable_power_well, i915.disable_power_well, int, 0600); 135 MODULE_PARM_DESC(disable_power_well, 136 "Disable display power wells when possible " 137 "(-1=auto [default], 0=power wells always on, 1=power wells disabled when possible)"); 138 139 module_param_named_unsafe(enable_ips, i915.enable_ips, int, 0600); 140 MODULE_PARM_DESC(enable_ips, "Enable IPS (default: true)"); 141 142 module_param_named(fastboot, i915.fastboot, bool, 0600); 143 MODULE_PARM_DESC(fastboot, 144 "Try to skip unnecessary mode sets at boot time (default: false)"); 145 146 module_param_named_unsafe(prefault_disable, i915.prefault_disable, bool, 0600); 147 MODULE_PARM_DESC(prefault_disable, 148 "Disable page prefaulting for pread/pwrite/reloc (default:false). " 149 "For developers only."); 150 151 module_param_named_unsafe(load_detect_test, i915.load_detect_test, bool, 0600); 152 MODULE_PARM_DESC(load_detect_test, 153 "Force-enable the VGA load detect code for testing (default:false). " 154 "For developers only."); 155 156 module_param_named_unsafe(invert_brightness, i915.invert_brightness, int, 0600); 157 MODULE_PARM_DESC(invert_brightness, 158 "Invert backlight brightness " 159 "(-1 force normal, 0 machine defaults, 1 force inversion), please " 160 "report PCI device ID, subsystem vendor and subsystem device ID " 161 "to dri-devel (at) lists.freedesktop.org, if your machine needs it. " 162 "It will then be included in an upcoming module version."); 163 164 module_param_named(disable_display, i915.disable_display, bool, 0600); 165 MODULE_PARM_DESC(disable_display, "Disable display (default: false)"); 166 167 module_param_named_unsafe(disable_vtd_wa, i915.disable_vtd_wa, bool, 0600); 168 MODULE_PARM_DESC(disable_vtd_wa, "Disable all VT-d workarounds (default: false)"); 169 170 module_param_named_unsafe(enable_cmd_parser, i915.enable_cmd_parser, int, 0600); 171 MODULE_PARM_DESC(enable_cmd_parser, 172 "Enable command parsing (1=enabled [default], 0=disabled)"); 173 174 module_param_named_unsafe(use_mmio_flip, i915.use_mmio_flip, int, 0600); 175 MODULE_PARM_DESC(use_mmio_flip, 176 "use MMIO flips (-1=never, 0=driver discretion [default], 1=always)"); 177 178 module_param_named(mmio_debug, i915.mmio_debug, int, 0600); 179 MODULE_PARM_DESC(mmio_debug, 180 "Enable the MMIO debug code for the first N failures (default: off). " 181 "This may negatively affect performance."); 182 183 module_param_named(verbose_state_checks, i915.verbose_state_checks, bool, 0600); 184 MODULE_PARM_DESC(verbose_state_checks, 185 "Enable verbose logs (ie. WARN_ON()) in case of unexpected hw state conditions."); 186 187 module_param_named_unsafe(nuclear_pageflip, i915.nuclear_pageflip, bool, 0600); 188 MODULE_PARM_DESC(nuclear_pageflip, 189 "Force atomic modeset functionality; asynchronous mode is not yet supported. (default: false)."); 190 191 /* WA to get away with the default setting in VBT for early platforms.Will be removed */ 192 module_param_named_unsafe(edp_vswing, i915.edp_vswing, int, 0400); 193 MODULE_PARM_DESC(edp_vswing, 194 "Ignore/Override vswing pre-emph table selection from VBT " 195 "(0=use value from vbt [default], 1=low power swing(200mV)," 196 "2=default swing(400mV))"); 197 198 module_param_named_unsafe(enable_guc_submission, i915.enable_guc_submission, bool, 0400); 199 MODULE_PARM_DESC(enable_guc_submission, "Enable GuC submission (default:false)"); 200 201 module_param_named(guc_log_level, i915.guc_log_level, int, 0400); 202 MODULE_PARM_DESC(guc_log_level, 203 "GuC firmware logging level (-1:disabled (default), 0-3:enabled)"); 204
Indexes created Mon Oct 20 11:09:49 GMT 2025