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d330a953 JN |
1 | /* |
2 | * Copyright © 2014 Intel Corporation | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the | |
6 | * "Software"), to deal in the Software without restriction, including | |
7 | * without limitation the rights to use, copy, modify, merge, publish, | |
8 | * distribute, sub license, and/or sell copies of the Software, and to | |
9 | * permit persons to whom the Software is furnished to do so, subject to | |
10 | * the following conditions: | |
11 | * | |
12 | * The above copyright notice and this permission notice (including the | |
13 | * next paragraph) shall be included in all copies or substantial portions | |
14 | * of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
21 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS | |
22 | * IN THE SOFTWARE. | |
23 | */ | |
24 | ||
25 | #include "i915_drv.h" | |
26 | ||
27 | struct i915_params i915 __read_mostly = { | |
28 | .modeset = -1, | |
29 | .panel_ignore_lid = 1, | |
30 | .powersave = 1, | |
31 | .semaphores = -1, | |
32 | .lvds_downclock = 0, | |
33 | .lvds_channel_mode = 0, | |
34 | .panel_use_ssc = -1, | |
35 | .vbt_sdvo_panel_type = -1, | |
36 | .enable_rc6 = -1, | |
37 | .enable_fbc = -1, | |
127f1003 | 38 | .enable_execlists = -1, |
d330a953 JN |
39 | .enable_hangcheck = true, |
40 | .enable_ppgtt = -1, | |
b6d54779 | 41 | .enable_psr = 1, |
d330a953 JN |
42 | .preliminary_hw_support = IS_ENABLED(CONFIG_DRM_I915_PRELIMINARY_HW_SUPPORT), |
43 | .disable_power_well = 1, | |
44 | .enable_ips = 1, | |
45 | .fastboot = 0, | |
d330a953 JN |
46 | .prefault_disable = 0, |
47 | .reset = true, | |
48 | .invert_brightness = 0, | |
a0bae57f | 49 | .disable_display = 0, |
5c411bb1 | 50 | .enable_cmd_parser = 1, |
7a10dfa6 | 51 | .disable_vtd_wa = 0, |
84c33a64 | 52 | .use_mmio_flip = 0, |
5978118c | 53 | .mmio_debug = 0, |
d330a953 JN |
54 | }; |
55 | ||
56 | module_param_named(modeset, i915.modeset, int, 0400); | |
57 | MODULE_PARM_DESC(modeset, | |
58 | "Use kernel modesetting [KMS] (0=DRM_I915_KMS from .config, " | |
59 | "1=on, -1=force vga console preference [default])"); | |
60 | ||
61 | module_param_named(panel_ignore_lid, i915.panel_ignore_lid, int, 0600); | |
62 | MODULE_PARM_DESC(panel_ignore_lid, | |
63 | "Override lid status (0=autodetect, 1=autodetect disabled [default], " | |
64 | "-1=force lid closed, -2=force lid open)"); | |
65 | ||
66 | module_param_named(powersave, i915.powersave, int, 0600); | |
67 | MODULE_PARM_DESC(powersave, | |
68 | "Enable powersavings, fbc, downclocking, etc. (default: true)"); | |
69 | ||
70 | module_param_named(semaphores, i915.semaphores, int, 0400); | |
71 | MODULE_PARM_DESC(semaphores, | |
72 | "Use semaphores for inter-ring sync " | |
73 | "(default: -1 (use per-chip defaults))"); | |
74 | ||
3adee7a7 JN |
75 | module_param_named(enable_rc6, i915.enable_rc6, int, 0400); |
76 | MODULE_PARM_DESC(enable_rc6, | |
d330a953 JN |
77 | "Enable power-saving render C-state 6. " |
78 | "Different stages can be selected via bitmask values " | |
79 | "(0 = disable; 1 = enable rc6; 2 = enable deep rc6; 4 = enable deepest rc6). " | |
80 | "For example, 3 would enable rc6 and deep rc6, and 7 would enable everything. " | |
81 | "default: -1 (use per-chip default)"); | |
82 | ||
3adee7a7 JN |
83 | module_param_named(enable_fbc, i915.enable_fbc, int, 0600); |
84 | MODULE_PARM_DESC(enable_fbc, | |
d330a953 JN |
85 | "Enable frame buffer compression for power savings " |
86 | "(default: -1 (use per-chip default))"); | |
87 | ||
88 | module_param_named(lvds_downclock, i915.lvds_downclock, int, 0400); | |
89 | MODULE_PARM_DESC(lvds_downclock, | |
90 | "Use panel (LVDS/eDP) downclocking for power savings " | |
91 | "(default: false)"); | |
92 | ||
93 | module_param_named(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(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(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(reset, i915.reset, bool, 0600); | |
109 | MODULE_PARM_DESC(reset, "Attempt GPU resets (default: true)"); | |
110 | ||
111 | module_param_named(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 | ||
3adee7a7 JN |
117 | module_param_named(enable_ppgtt, i915.enable_ppgtt, int, 0400); |
118 | MODULE_PARM_DESC(enable_ppgtt, | |
d330a953 JN |
119 | "Override PPGTT usage. " |
120 | "(-1=auto [default], 0=disabled, 1=aliasing, 2=full)"); | |
121 | ||
127f1003 OM |
122 | module_param_named(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 | ||
d330a953 | 127 | module_param_named(enable_psr, i915.enable_psr, int, 0600); |
b6d54779 | 128 | MODULE_PARM_DESC(enable_psr, "Enable PSR (default: true)"); |
d330a953 JN |
129 | |
130 | module_param_named(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(disable_power_well, i915.disable_power_well, int, 0600); | |
135 | MODULE_PARM_DESC(disable_power_well, | |
136 | "Disable the power well when possible (default: true)"); | |
137 | ||
138 | module_param_named(enable_ips, i915.enable_ips, int, 0600); | |
139 | MODULE_PARM_DESC(enable_ips, "Enable IPS (default: true)"); | |
140 | ||
141 | module_param_named(fastboot, i915.fastboot, bool, 0600); | |
142 | MODULE_PARM_DESC(fastboot, | |
143 | "Try to skip unnecessary mode sets at boot time (default: false)"); | |
144 | ||
d330a953 JN |
145 | module_param_named(prefault_disable, i915.prefault_disable, bool, 0600); |
146 | MODULE_PARM_DESC(prefault_disable, | |
147 | "Disable page prefaulting for pread/pwrite/reloc (default:false). " | |
148 | "For developers only."); | |
149 | ||
150 | module_param_named(invert_brightness, i915.invert_brightness, int, 0600); | |
151 | MODULE_PARM_DESC(invert_brightness, | |
152 | "Invert backlight brightness " | |
153 | "(-1 force normal, 0 machine defaults, 1 force inversion), please " | |
154 | "report PCI device ID, subsystem vendor and subsystem device ID " | |
155 | "to dri-devel@lists.freedesktop.org, if your machine needs it. " | |
156 | "It will then be included in an upcoming module version."); | |
a0bae57f DL |
157 | |
158 | module_param_named(disable_display, i915.disable_display, bool, 0600); | |
159 | MODULE_PARM_DESC(disable_display, "Disable display (default: false)"); | |
351e3db2 | 160 | |
7a10dfa6 DV |
161 | module_param_named(disable_vtd_wa, i915.disable_vtd_wa, bool, 0600); |
162 | MODULE_PARM_DESC(disable_vtd_wa, "Disable all VT-d workarounds (default: false)"); | |
163 | ||
351e3db2 BV |
164 | module_param_named(enable_cmd_parser, i915.enable_cmd_parser, int, 0600); |
165 | MODULE_PARM_DESC(enable_cmd_parser, | |
5c411bb1 | 166 | "Enable command parsing (1=enabled [default], 0=disabled)"); |
84c33a64 SG |
167 | |
168 | module_param_named(use_mmio_flip, i915.use_mmio_flip, int, 0600); | |
169 | MODULE_PARM_DESC(use_mmio_flip, | |
170 | "use MMIO flips (-1=never, 0=driver discretion [default], 1=always)"); | |
5978118c PZ |
171 | |
172 | module_param_named(mmio_debug, i915.mmio_debug, bool, 0600); | |
173 | MODULE_PARM_DESC(mmio_debug, | |
174 | "Enable the MMIO debug code (default: false). This may negatively " | |
175 | "affect performance."); |