WebSVN – Kolibri OS – Diff – /drivers/video/drm/i915/i915_params.c


/*
 * Copyright © 2014 Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */
 
#include "i915_params.h"
#include "i915_drv.h"
 
struct i915_params i915 __read_mostly = {
    .modeset = 1,
	.panel_ignore_lid = 1,
	.semaphores = -1,
	.lvds_channel_mode = 0,
	.panel_use_ssc = -1,
	.vbt_sdvo_panel_type = -1,
	.enable_rc6 = 0,
	.enable_dc = -1,
	.enable_fbc = -1,
	.enable_execlists = -1,
	.enable_hangcheck = false,
	.enable_ppgtt = -1,
	.enable_psr = 0,
	.preliminary_hw_support = IS_ENABLED(CONFIG_DRM_I915_PRELIMINARY_HW_SUPPORT),
	.disable_power_well = -1,
	.enable_ips = 1,
	.fastboot = 0,
	.prefault_disable = 0,
	.load_detect_test = 0,
	.reset = true,
	.invert_brightness = 0,
	.disable_display = 0,
	.enable_cmd_parser = 0,
 
	.use_mmio_flip = 0,
	.mmio_debug = 0,
	.verbose_state_checks = 1,
	.nuclear_pageflip = 0,
	.edp_vswing = 0,
	.enable_guc_submission = false,
	.guc_log_level = -1,
    .log_file = NULL,
    .cmdline_mode = NULL,
};
 
module_param_named(modeset, i915.modeset, int, 0400);
MODULE_PARM_DESC(modeset,
	"Use kernel modesetting [KMS] (0=disable, "
	"1=on, -1=force vga console preference [default])");
 
module_param_named_unsafe(panel_ignore_lid, i915.panel_ignore_lid, int, 0600);
MODULE_PARM_DESC(panel_ignore_lid,
	"Override lid status (0=autodetect, 1=autodetect disabled [default], "
	"-1=force lid closed, -2=force lid open)");
 
module_param_named_unsafe(semaphores, i915.semaphores, int, 0400);
MODULE_PARM_DESC(semaphores,
	"Use semaphores for inter-ring sync "
	"(default: -1 (use per-chip defaults))");
 
module_param_named_unsafe(enable_rc6, i915.enable_rc6, int, 0400);
MODULE_PARM_DESC(enable_rc6,
	"Enable power-saving render C-state 6. "
	"Different stages can be selected via bitmask values "
	"(0 = disable; 1 = enable rc6; 2 = enable deep rc6; 4 = enable deepest rc6). "
	"For example, 3 would enable rc6 and deep rc6, and 7 would enable everything. "
	"default: -1 (use per-chip default)");
 
module_param_named_unsafe(enable_dc, i915.enable_dc, int, 0400);
MODULE_PARM_DESC(enable_dc,
	"Enable power-saving display C-states. "
	"(-1=auto [default]; 0=disable; 1=up to DC5; 2=up to DC6)");
 
module_param_named_unsafe(enable_fbc, i915.enable_fbc, int, 0600);
MODULE_PARM_DESC(enable_fbc,
	"Enable frame buffer compression for power savings "
	"(default: -1 (use per-chip default))");
 
module_param_named_unsafe(lvds_channel_mode, i915.lvds_channel_mode, int, 0400);
MODULE_PARM_DESC(lvds_channel_mode,
	 "Specify LVDS channel mode "
	 "(0=probe BIOS [default], 1=single-channel, 2=dual-channel)");
 
module_param_named_unsafe(lvds_use_ssc, i915.panel_use_ssc, int, 0600);
MODULE_PARM_DESC(lvds_use_ssc,
	"Use Spread Spectrum Clock with panels [LVDS/eDP] "
	"(default: auto from VBT)");
 
module_param_named_unsafe(vbt_sdvo_panel_type, i915.vbt_sdvo_panel_type, int, 0400);
MODULE_PARM_DESC(vbt_sdvo_panel_type,
	"Override/Ignore selection of SDVO panel mode in the VBT "
	"(-2=ignore, -1=auto [default], index in VBT BIOS table)");
 
module_param_named_unsafe(reset, i915.reset, bool, 0600);
MODULE_PARM_DESC(reset, "Attempt GPU resets (default: true)");
 
module_param_named_unsafe(enable_hangcheck, i915.enable_hangcheck, bool, 0644);
MODULE_PARM_DESC(enable_hangcheck,
	"Periodically check GPU activity for detecting hangs. "
	"WARNING: Disabling this can cause system wide hangs. "
	"(default: true)");
 
module_param_named_unsafe(enable_ppgtt, i915.enable_ppgtt, int, 0400);
MODULE_PARM_DESC(enable_ppgtt,
	"Override PPGTT usage. "
	"(-1=auto [default], 0=disabled, 1=aliasing, 2=full, 3=full with extended address space)");
 
module_param_named_unsafe(enable_execlists, i915.enable_execlists, int, 0400);
MODULE_PARM_DESC(enable_execlists,
	"Override execlists usage. "
	"(-1=auto [default], 0=disabled, 1=enabled)");
 
module_param_named_unsafe(enable_psr, i915.enable_psr, int, 0600);
MODULE_PARM_DESC(enable_psr, "Enable PSR "
		 "(0=disabled, 1=enabled - link mode chosen per-platform, 2=force link-standby mode, 3=force link-off mode) "
		 "Default: -1 (use per-chip default)");
 
module_param_named_unsafe(preliminary_hw_support, i915.preliminary_hw_support, int, 0400);
MODULE_PARM_DESC(preliminary_hw_support,
	"Enable preliminary hardware support.");
 
module_param_named_unsafe(disable_power_well, i915.disable_power_well, int, 0400);
MODULE_PARM_DESC(disable_power_well,
	"Disable display power wells when possible "
	"(-1=auto [default], 0=power wells always on, 1=power wells disabled when possible)");
 
module_param_named_unsafe(enable_ips, i915.enable_ips, int, 0600);
MODULE_PARM_DESC(enable_ips, "Enable IPS (default: true)");
 
module_param_named(fastboot, i915.fastboot, bool, 0600);
MODULE_PARM_DESC(fastboot,
	"Try to skip unnecessary mode sets at boot time (default: false)");
 
module_param_named_unsafe(prefault_disable, i915.prefault_disable, bool, 0600);
MODULE_PARM_DESC(prefault_disable,
	"Disable page prefaulting for pread/pwrite/reloc (default:false). "
	"For developers only.");
 
module_param_named_unsafe(load_detect_test, i915.load_detect_test, bool, 0600);
MODULE_PARM_DESC(load_detect_test,
	"Force-enable the VGA load detect code for testing (default:false). "
	"For developers only.");
 
module_param_named_unsafe(invert_brightness, i915.invert_brightness, int, 0600);
MODULE_PARM_DESC(invert_brightness,
	"Invert backlight brightness "
	"(-1 force normal, 0 machine defaults, 1 force inversion), please "
	"report PCI device ID, subsystem vendor and subsystem device ID "
	"to dri-devel@lists.freedesktop.org, if your machine needs it. "
	"It will then be included in an upcoming module version.");
 
module_param_named(disable_display, i915.disable_display, bool, 0400);
 
 
 
MODULE_PARM_DESC(disable_display, "Disable display (default: false)");
 
module_param_named_unsafe(enable_cmd_parser, i915.enable_cmd_parser, int, 0600);
MODULE_PARM_DESC(enable_cmd_parser,
		 "Enable command parsing (1=enabled [default], 0=disabled)");
 
module_param_named_unsafe(use_mmio_flip, i915.use_mmio_flip, int, 0600);
MODULE_PARM_DESC(use_mmio_flip,
		 "use MMIO flips (-1=never, 0=driver discretion [default], 1=always)");
 
module_param_named(mmio_debug, i915.mmio_debug, int, 0600);
MODULE_PARM_DESC(mmio_debug,
	"Enable the MMIO debug code for the first N failures (default: off). "
	"This may negatively affect performance.");
 
module_param_named(verbose_state_checks, i915.verbose_state_checks, bool, 0600);
MODULE_PARM_DESC(verbose_state_checks,
	"Enable verbose logs (ie. WARN_ON()) in case of unexpected hw state conditions.");
 
module_param_named_unsafe(nuclear_pageflip, i915.nuclear_pageflip, bool, 0600);
MODULE_PARM_DESC(nuclear_pageflip,
		 "Force atomic modeset functionality; asynchronous mode is not yet supported. (default: false).");
 
/* WA to get away with the default setting in VBT for early platforms.Will be removed */
module_param_named_unsafe(edp_vswing, i915.edp_vswing, int, 0400);
MODULE_PARM_DESC(edp_vswing,
		 "Ignore/Override vswing pre-emph table selection from VBT "
		 "(0=use value from vbt [default], 1=low power swing(200mV),"
		 "2=default swing(400mV))");
 
module_param_named_unsafe(enable_guc_submission, i915.enable_guc_submission, bool, 0400);
MODULE_PARM_DESC(enable_guc_submission, "Enable GuC submission (default:false)");
 
module_param_named(guc_log_level, i915.guc_log_level, int, 0400);
MODULE_PARM_DESC(guc_log_level,
	"GuC firmware logging level (-1:disabled (default), 0-3:enabled)");

Subversion Repositories Kolibri OS

(root)/drivers/video/drm/i915/i915_params.c – Rev 6937 → 7144

Rev 6937		Rev 7144
1	/*	1	/*
2	* Copyright © 2014 Intel Corporation	2	* Copyright © 2014 Intel Corporation
3	*	3	*
4	* Permission is hereby granted, free of charge, to any person obtaining a	4	* Permission is hereby granted, free of charge, to any person obtaining a
5	* copy of this software and associated documentation files (the	5	* copy of this software and associated documentation files (the
6	* "Software"), to deal in the Software without restriction, including	6	* "Software"), to deal in the Software without restriction, including
7	* without limitation the rights to use, copy, modify, merge, publish,	7	* without limitation the rights to use, copy, modify, merge, publish,
8	* distribute, sub license, and/or sell copies of the Software, and to	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	9	* permit persons to whom the Software is furnished to do so, subject to
10	* the following conditions:	10	* the following conditions:
11	*	11	*
12	* The above copyright notice and this permission notice (including the	12	* The above copyright notice and this permission notice (including the
13	* next paragraph) shall be included in all copies or substantial portions	13	* next paragraph) shall be included in all copies or substantial portions
14	* of the Software.	14	* of the Software.
15	*	15	*
16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR	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,	17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL	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	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	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	21	* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
22	* IN THE SOFTWARE.	22	* IN THE SOFTWARE.
23	*/	23	*/
-		24
24		25	#include "i915_params.h"
25	#include "i915_drv.h"	26	#include "i915_drv.h"
26		27
27	struct i915_params i915 __read_mostly = {	28	struct i915_params i915 __read_mostly = {
28	.modeset = 1,	29	.modeset = 1,
29	.panel_ignore_lid = 1,	30	.panel_ignore_lid = 1,
30	.semaphores = -1,	31	.semaphores = -1,
31	.lvds_channel_mode = 0,	32	.lvds_channel_mode = 0,
32	.panel_use_ssc = -1,	33	.panel_use_ssc = -1,
33	.vbt_sdvo_panel_type = -1,	34	.vbt_sdvo_panel_type = -1,
34	.enable_rc6 = 0,	35	.enable_rc6 = 0,
35	.enable_dc = -1,	36	.enable_dc = -1,
36	.enable_fbc = -1,	37	.enable_fbc = -1,
37	.enable_execlists = -1,	38	.enable_execlists = -1,
38	.enable_hangcheck = true,	39	.enable_hangcheck = false,
39	.enable_ppgtt = -1,	40	.enable_ppgtt = -1,
40	.enable_psr = 0,	41	.enable_psr = 0,
41	.preliminary_hw_support = IS_ENABLED(CONFIG_DRM_I915_PRELIMINARY_HW_SUPPORT),	42	.preliminary_hw_support = IS_ENABLED(CONFIG_DRM_I915_PRELIMINARY_HW_SUPPORT),
42	.disable_power_well = -1,	43	.disable_power_well = -1,
43	.enable_ips = 1,	44	.enable_ips = 1,
44	.fastboot = 0,	45	.fastboot = 0,
45	.prefault_disable = 0,	46	.prefault_disable = 0,
46	.load_detect_test = 0,	47	.load_detect_test = 0,
47	.reset = true,	48	.reset = true,
48	.invert_brightness = 0,	49	.invert_brightness = 0,
49	.disable_display = 0,	50	.disable_display = 0,
50	.enable_cmd_parser = 0,	51	.enable_cmd_parser = 0,
51	.disable_vtd_wa = 1,	-
52	.use_mmio_flip = 0,	52	.use_mmio_flip = 0,
53	.mmio_debug = 0,	53	.mmio_debug = 0,
54	.verbose_state_checks = 1,	54	.verbose_state_checks = 1,
55	.nuclear_pageflip = 0,	55	.nuclear_pageflip = 0,
56	.edp_vswing = 0,	56	.edp_vswing = 0,
57	.enable_guc_submission = false,	57	.enable_guc_submission = false,
58	.guc_log_level = -1,	58	.guc_log_level = -1,
59	.log_file = NULL,	59	.log_file = NULL,
60	.cmdline_mode = NULL,	60	.cmdline_mode = NULL,
61	};	61	};
62		62
63	module_param_named(modeset, i915.modeset, int, 0400);	63	module_param_named(modeset, i915.modeset, int, 0400);
64	MODULE_PARM_DESC(modeset,	64	MODULE_PARM_DESC(modeset,
65	"Use kernel modesetting [KMS] (0=disable, "	65	"Use kernel modesetting [KMS] (0=disable, "
66	"1=on, -1=force vga console preference [default])");	66	"1=on, -1=force vga console preference [default])");
67		67
68	module_param_named_unsafe(panel_ignore_lid, i915.panel_ignore_lid, int, 0600);	68	module_param_named_unsafe(panel_ignore_lid, i915.panel_ignore_lid, int, 0600);
69	MODULE_PARM_DESC(panel_ignore_lid,	69	MODULE_PARM_DESC(panel_ignore_lid,
70	"Override lid status (0=autodetect, 1=autodetect disabled [default], "	70	"Override lid status (0=autodetect, 1=autodetect disabled [default], "
71	"-1=force lid closed, -2=force lid open)");	71	"-1=force lid closed, -2=force lid open)");
72		72
73	module_param_named_unsafe(semaphores, i915.semaphores, int, 0400);	73	module_param_named_unsafe(semaphores, i915.semaphores, int, 0400);
74	MODULE_PARM_DESC(semaphores,	74	MODULE_PARM_DESC(semaphores,
75	"Use semaphores for inter-ring sync "	75	"Use semaphores for inter-ring sync "
76	"(default: -1 (use per-chip defaults))");	76	"(default: -1 (use per-chip defaults))");
77		77
78	module_param_named_unsafe(enable_rc6, i915.enable_rc6, int, 0400);	78	module_param_named_unsafe(enable_rc6, i915.enable_rc6, int, 0400);
79	MODULE_PARM_DESC(enable_rc6,	79	MODULE_PARM_DESC(enable_rc6,
80	"Enable power-saving render C-state 6. "	80	"Enable power-saving render C-state 6. "
81	"Different stages can be selected via bitmask values "	81	"Different stages can be selected via bitmask values "
82	"(0 = disable; 1 = enable rc6; 2 = enable deep rc6; 4 = enable deepest rc6). "	82	"(0 = disable; 1 = enable rc6; 2 = enable deep rc6; 4 = enable deepest rc6). "
83	"For example, 3 would enable rc6 and deep rc6, and 7 would enable everything. "	83	"For example, 3 would enable rc6 and deep rc6, and 7 would enable everything. "
84	"default: -1 (use per-chip default)");	84	"default: -1 (use per-chip default)");
85		85
86	module_param_named_unsafe(enable_dc, i915.enable_dc, int, 0400);	86	module_param_named_unsafe(enable_dc, i915.enable_dc, int, 0400);
87	MODULE_PARM_DESC(enable_dc,	87	MODULE_PARM_DESC(enable_dc,
88	"Enable power-saving display C-states. "	88	"Enable power-saving display C-states. "
89	"(-1=auto [default]; 0=disable; 1=up to DC5; 2=up to DC6)");	89	"(-1=auto [default]; 0=disable; 1=up to DC5; 2=up to DC6)");
90		90
91	module_param_named_unsafe(enable_fbc, i915.enable_fbc, int, 0600);	91	module_param_named_unsafe(enable_fbc, i915.enable_fbc, int, 0600);
92	MODULE_PARM_DESC(enable_fbc,	92	MODULE_PARM_DESC(enable_fbc,
93	"Enable frame buffer compression for power savings "	93	"Enable frame buffer compression for power savings "
94	"(default: -1 (use per-chip default))");	94	"(default: -1 (use per-chip default))");
95		95
96	module_param_named_unsafe(lvds_channel_mode, i915.lvds_channel_mode, int, 0600);	96	module_param_named_unsafe(lvds_channel_mode, i915.lvds_channel_mode, int, 0400);
97	MODULE_PARM_DESC(lvds_channel_mode,	97	MODULE_PARM_DESC(lvds_channel_mode,
98	"Specify LVDS channel mode "	98	"Specify LVDS channel mode "
99	"(0=probe BIOS [default], 1=single-channel, 2=dual-channel)");	99	"(0=probe BIOS [default], 1=single-channel, 2=dual-channel)");
100		100
101	module_param_named_unsafe(lvds_use_ssc, i915.panel_use_ssc, int, 0600);	101	module_param_named_unsafe(lvds_use_ssc, i915.panel_use_ssc, int, 0600);
102	MODULE_PARM_DESC(lvds_use_ssc,	102	MODULE_PARM_DESC(lvds_use_ssc,
103	"Use Spread Spectrum Clock with panels [LVDS/eDP] "	103	"Use Spread Spectrum Clock with panels [LVDS/eDP] "
104	"(default: auto from VBT)");	104	"(default: auto from VBT)");
105		105
106	module_param_named_unsafe(vbt_sdvo_panel_type, i915.vbt_sdvo_panel_type, int, 0600);	106	module_param_named_unsafe(vbt_sdvo_panel_type, i915.vbt_sdvo_panel_type, int, 0400);
107	MODULE_PARM_DESC(vbt_sdvo_panel_type,	107	MODULE_PARM_DESC(vbt_sdvo_panel_type,
108	"Override/Ignore selection of SDVO panel mode in the VBT "	108	"Override/Ignore selection of SDVO panel mode in the VBT "
109	"(-2=ignore, -1=auto [default], index in VBT BIOS table)");	109	"(-2=ignore, -1=auto [default], index in VBT BIOS table)");
110		110
111	module_param_named_unsafe(reset, i915.reset, bool, 0600);	111	module_param_named_unsafe(reset, i915.reset, bool, 0600);
112	MODULE_PARM_DESC(reset, "Attempt GPU resets (default: true)");	112	MODULE_PARM_DESC(reset, "Attempt GPU resets (default: true)");
113		113
114	module_param_named_unsafe(enable_hangcheck, i915.enable_hangcheck, bool, 0644);	114	module_param_named_unsafe(enable_hangcheck, i915.enable_hangcheck, bool, 0644);
115	MODULE_PARM_DESC(enable_hangcheck,	115	MODULE_PARM_DESC(enable_hangcheck,
116	"Periodically check GPU activity for detecting hangs. "	116	"Periodically check GPU activity for detecting hangs. "
117	"WARNING: Disabling this can cause system wide hangs. "	117	"WARNING: Disabling this can cause system wide hangs. "
118	"(default: true)");	118	"(default: true)");
119		119
120	module_param_named_unsafe(enable_ppgtt, i915.enable_ppgtt, int, 0400);	120	module_param_named_unsafe(enable_ppgtt, i915.enable_ppgtt, int, 0400);
121	MODULE_PARM_DESC(enable_ppgtt,	121	MODULE_PARM_DESC(enable_ppgtt,
122	"Override PPGTT usage. "	122	"Override PPGTT usage. "
123	"(-1=auto [default], 0=disabled, 1=aliasing, 2=full, 3=full with extended address space)");	123	"(-1=auto [default], 0=disabled, 1=aliasing, 2=full, 3=full with extended address space)");
124		124
125	module_param_named_unsafe(enable_execlists, i915.enable_execlists, int, 0400);	125	module_param_named_unsafe(enable_execlists, i915.enable_execlists, int, 0400);
126	MODULE_PARM_DESC(enable_execlists,	126	MODULE_PARM_DESC(enable_execlists,
127	"Override execlists usage. "	127	"Override execlists usage. "
128	"(-1=auto [default], 0=disabled, 1=enabled)");	128	"(-1=auto [default], 0=disabled, 1=enabled)");
129		129
130	module_param_named_unsafe(enable_psr, i915.enable_psr, int, 0600);	130	module_param_named_unsafe(enable_psr, i915.enable_psr, int, 0600);
131	MODULE_PARM_DESC(enable_psr, "Enable PSR (default: false)");	131	MODULE_PARM_DESC(enable_psr, "Enable PSR "
-		132	"(0=disabled, 1=enabled - link mode chosen per-platform, 2=force link-standby mode, 3=force link-off mode) "
-		133	"Default: -1 (use per-chip default)");
132		134
133	module_param_named_unsafe(preliminary_hw_support, i915.preliminary_hw_support, int, 0600);	135	module_param_named_unsafe(preliminary_hw_support, i915.preliminary_hw_support, int, 0400);
134	MODULE_PARM_DESC(preliminary_hw_support,	136	MODULE_PARM_DESC(preliminary_hw_support,
135	"Enable preliminary hardware support.");	137	"Enable preliminary hardware support.");
136		138
137	module_param_named_unsafe(disable_power_well, i915.disable_power_well, int, 0400);	139	module_param_named_unsafe(disable_power_well, i915.disable_power_well, int, 0400);
138	MODULE_PARM_DESC(disable_power_well,	140	MODULE_PARM_DESC(disable_power_well,
139	"Disable display power wells when possible "	141	"Disable display power wells when possible "
140	"(-1=auto [default], 0=power wells always on, 1=power wells disabled when possible)");	142	"(-1=auto [default], 0=power wells always on, 1=power wells disabled when possible)");
141		143
142	module_param_named_unsafe(enable_ips, i915.enable_ips, int, 0600);	144	module_param_named_unsafe(enable_ips, i915.enable_ips, int, 0600);
143	MODULE_PARM_DESC(enable_ips, "Enable IPS (default: true)");	145	MODULE_PARM_DESC(enable_ips, "Enable IPS (default: true)");
144		146
145	module_param_named(fastboot, i915.fastboot, bool, 0600);	147	module_param_named(fastboot, i915.fastboot, bool, 0600);
146	MODULE_PARM_DESC(fastboot,	148	MODULE_PARM_DESC(fastboot,
147	"Try to skip unnecessary mode sets at boot time (default: false)");	149	"Try to skip unnecessary mode sets at boot time (default: false)");
148		150
149	module_param_named_unsafe(prefault_disable, i915.prefault_disable, bool, 0600);	151	module_param_named_unsafe(prefault_disable, i915.prefault_disable, bool, 0600);
150	MODULE_PARM_DESC(prefault_disable,	152	MODULE_PARM_DESC(prefault_disable,
151	"Disable page prefaulting for pread/pwrite/reloc (default:false). "	153	"Disable page prefaulting for pread/pwrite/reloc (default:false). "
152	"For developers only.");	154	"For developers only.");
153		155
154	module_param_named_unsafe(load_detect_test, i915.load_detect_test, bool, 0600);	156	module_param_named_unsafe(load_detect_test, i915.load_detect_test, bool, 0600);
155	MODULE_PARM_DESC(load_detect_test,	157	MODULE_PARM_DESC(load_detect_test,
156	"Force-enable the VGA load detect code for testing (default:false). "	158	"Force-enable the VGA load detect code for testing (default:false). "
157	"For developers only.");	159	"For developers only.");
158		160
159	module_param_named_unsafe(invert_brightness, i915.invert_brightness, int, 0600);	161	module_param_named_unsafe(invert_brightness, i915.invert_brightness, int, 0600);
160	MODULE_PARM_DESC(invert_brightness,	162	MODULE_PARM_DESC(invert_brightness,
161	"Invert backlight brightness "	163	"Invert backlight brightness "
162	"(-1 force normal, 0 machine defaults, 1 force inversion), please "	164	"(-1 force normal, 0 machine defaults, 1 force inversion), please "
163	"report PCI device ID, subsystem vendor and subsystem device ID "	165	"report PCI device ID, subsystem vendor and subsystem device ID "
164	"to dri-devel@lists.freedesktop.org, if your machine needs it. "	166	"to dri-devel@lists.freedesktop.org, if your machine needs it. "
165	"It will then be included in an upcoming module version.");	167	"It will then be included in an upcoming module version.");
166		168
167	module_param_named(disable_display, i915.disable_display, bool, 0600);	169	module_param_named(disable_display, i915.disable_display, bool, 0400);
168	MODULE_PARM_DESC(disable_display, "Disable display (default: false)");	-
169		-
170	module_param_named_unsafe(disable_vtd_wa, i915.disable_vtd_wa, bool, 0600);	-
171	MODULE_PARM_DESC(disable_vtd_wa, "Disable all VT-d workarounds (default: false)");	170	MODULE_PARM_DESC(disable_display, "Disable display (default: false)");
172		171
173	module_param_named_unsafe(enable_cmd_parser, i915.enable_cmd_parser, int, 0600);	172	module_param_named_unsafe(enable_cmd_parser, i915.enable_cmd_parser, int, 0600);
174	MODULE_PARM_DESC(enable_cmd_parser,	173	MODULE_PARM_DESC(enable_cmd_parser,
175	"Enable command parsing (1=enabled [default], 0=disabled)");	174	"Enable command parsing (1=enabled [default], 0=disabled)");
176		175
177	module_param_named_unsafe(use_mmio_flip, i915.use_mmio_flip, int, 0600);	176	module_param_named_unsafe(use_mmio_flip, i915.use_mmio_flip, int, 0600);
178	MODULE_PARM_DESC(use_mmio_flip,	177	MODULE_PARM_DESC(use_mmio_flip,
179	"use MMIO flips (-1=never, 0=driver discretion [default], 1=always)");	178	"use MMIO flips (-1=never, 0=driver discretion [default], 1=always)");
180		179
181	module_param_named(mmio_debug, i915.mmio_debug, int, 0600);	180	module_param_named(mmio_debug, i915.mmio_debug, int, 0600);
182	MODULE_PARM_DESC(mmio_debug,	181	MODULE_PARM_DESC(mmio_debug,
183	"Enable the MMIO debug code for the first N failures (default: off). "	182	"Enable the MMIO debug code for the first N failures (default: off). "
184	"This may negatively affect performance.");	183	"This may negatively affect performance.");
185		184
186	module_param_named(verbose_state_checks, i915.verbose_state_checks, bool, 0600);	185	module_param_named(verbose_state_checks, i915.verbose_state_checks, bool, 0600);
187	MODULE_PARM_DESC(verbose_state_checks,	186	MODULE_PARM_DESC(verbose_state_checks,
188	"Enable verbose logs (ie. WARN_ON()) in case of unexpected hw state conditions.");	187	"Enable verbose logs (ie. WARN_ON()) in case of unexpected hw state conditions.");
189		188
190	module_param_named_unsafe(nuclear_pageflip, i915.nuclear_pageflip, bool, 0600);	189	module_param_named_unsafe(nuclear_pageflip, i915.nuclear_pageflip, bool, 0600);
191	MODULE_PARM_DESC(nuclear_pageflip,	190	MODULE_PARM_DESC(nuclear_pageflip,
192	"Force atomic modeset functionality; asynchronous mode is not yet supported. (default: false).");	191	"Force atomic modeset functionality; asynchronous mode is not yet supported. (default: false).");
193		192
194	/* WA to get away with the default setting in VBT for early platforms.Will be removed */	193	/* WA to get away with the default setting in VBT for early platforms.Will be removed */
195	module_param_named_unsafe(edp_vswing, i915.edp_vswing, int, 0400);	194	module_param_named_unsafe(edp_vswing, i915.edp_vswing, int, 0400);
196	MODULE_PARM_DESC(edp_vswing,	195	MODULE_PARM_DESC(edp_vswing,
197	"Ignore/Override vswing pre-emph table selection from VBT "	196	"Ignore/Override vswing pre-emph table selection from VBT "
198	"(0=use value from vbt [default], 1=low power swing(200mV),"	197	"(0=use value from vbt [default], 1=low power swing(200mV),"
199	"2=default swing(400mV))");	198	"2=default swing(400mV))");
200		199
201	module_param_named_unsafe(enable_guc_submission, i915.enable_guc_submission, bool, 0400);	200	module_param_named_unsafe(enable_guc_submission, i915.enable_guc_submission, bool, 0400);
202	MODULE_PARM_DESC(enable_guc_submission, "Enable GuC submission (default:false)");	201	MODULE_PARM_DESC(enable_guc_submission, "Enable GuC submission (default:false)");
203		202
204	module_param_named(guc_log_level, i915.guc_log_level, int, 0400);	203	module_param_named(guc_log_level, i915.guc_log_level, int, 0400);
205	MODULE_PARM_DESC(guc_log_level,	204	MODULE_PARM_DESC(guc_log_level,
206	"GuC firmware logging level (-1:disabled (default), 0-3:enabled)");	205	"GuC firmware logging level (-1:disabled (default), 0-3:enabled)");