mirror of https://gitee.com/openkylin/linux.git
256 lines
10 KiB
C
256 lines
10 KiB
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 = -1,
|
|
.enable_dc = -1,
|
|
.enable_fbc = -1,
|
|
.enable_execlists = -1,
|
|
.enable_hangcheck = true,
|
|
.enable_ppgtt = -1,
|
|
.enable_psr = -1,
|
|
.alpha_support = IS_ENABLED(CONFIG_DRM_I915_ALPHA_SUPPORT),
|
|
.disable_power_well = -1,
|
|
.enable_ips = 1,
|
|
.fastboot = 0,
|
|
.prefault_disable = 0,
|
|
.load_detect_test = 0,
|
|
.force_reset_modeset_test = 0,
|
|
.reset = true,
|
|
.error_capture = true,
|
|
.invert_brightness = 0,
|
|
.disable_display = 0,
|
|
.enable_cmd_parser = true,
|
|
.use_mmio_flip = 0,
|
|
.mmio_debug = 0,
|
|
.verbose_state_checks = 1,
|
|
.nuclear_pageflip = 0,
|
|
.edp_vswing = 0,
|
|
.enable_guc_loading = 0,
|
|
.enable_guc_submission = 0,
|
|
.guc_log_level = -1,
|
|
.guc_firmware_path = NULL,
|
|
.huc_firmware_path = NULL,
|
|
.enable_dp_mst = true,
|
|
.inject_load_failure = 0,
|
|
.enable_dpcd_backlight = false,
|
|
.enable_gvt = false,
|
|
};
|
|
|
|
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)");
|
|
|
|
#if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
|
|
module_param_named(error_capture, i915.error_capture, bool, 0600);
|
|
MODULE_PARM_DESC(error_capture,
|
|
"Record the GPU state following a hang. "
|
|
"This information in /sys/class/drm/card<N>/error is vital for "
|
|
"triaging and debugging hangs.");
|
|
#endif
|
|
|
|
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(alpha_support, i915.alpha_support, bool, 0400);
|
|
MODULE_PARM_DESC(alpha_support,
|
|
"Enable alpha quality driver support for latest hardware. "
|
|
"See also CONFIG_DRM_I915_ALPHA_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(force_reset_modeset_test, i915.force_reset_modeset_test, bool, 0600);
|
|
MODULE_PARM_DESC(force_reset_modeset_test,
|
|
"Force a modeset during gpu reset 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, bool, 0400);
|
|
MODULE_PARM_DESC(enable_cmd_parser,
|
|
"Enable command parsing (true=enabled [default], false=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, 0400);
|
|
MODULE_PARM_DESC(nuclear_pageflip,
|
|
"Force enable atomic functionality on platforms that don't have full support yet.");
|
|
|
|
/* 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_loading, i915.enable_guc_loading, int, 0400);
|
|
MODULE_PARM_DESC(enable_guc_loading,
|
|
"Enable GuC firmware loading "
|
|
"(-1=auto, 0=never [default], 1=if available, 2=required)");
|
|
|
|
module_param_named_unsafe(enable_guc_submission, i915.enable_guc_submission, int, 0400);
|
|
MODULE_PARM_DESC(enable_guc_submission,
|
|
"Enable GuC submission "
|
|
"(-1=auto, 0=never [default], 1=if available, 2=required)");
|
|
|
|
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)");
|
|
|
|
module_param_named_unsafe(guc_firmware_path, i915.guc_firmware_path, charp, 0400);
|
|
MODULE_PARM_DESC(guc_firmware_path,
|
|
"GuC firmware path to use instead of the default one");
|
|
|
|
module_param_named_unsafe(huc_firmware_path, i915.huc_firmware_path, charp, 0400);
|
|
MODULE_PARM_DESC(huc_firmware_path,
|
|
"HuC firmware path to use instead of the default one");
|
|
|
|
module_param_named_unsafe(enable_dp_mst, i915.enable_dp_mst, bool, 0600);
|
|
MODULE_PARM_DESC(enable_dp_mst,
|
|
"Enable multi-stream transport (MST) for new DisplayPort sinks. (default: true)");
|
|
module_param_named_unsafe(inject_load_failure, i915.inject_load_failure, uint, 0400);
|
|
MODULE_PARM_DESC(inject_load_failure,
|
|
"Force an error after a number of failure check points (0:disabled (default), N:force failure at the Nth failure check point)");
|
|
module_param_named(enable_dpcd_backlight, i915.enable_dpcd_backlight, bool, 0600);
|
|
MODULE_PARM_DESC(enable_dpcd_backlight,
|
|
"Enable support for DPCD backlight control (default:false)");
|
|
|
|
module_param_named(enable_gvt, i915.enable_gvt, bool, 0400);
|
|
MODULE_PARM_DESC(enable_gvt,
|
|
"Enable support for Intel GVT-g graphics virtualization host support(default:false)");
|