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127f100369
GEN8 brings an expansion of the HW contexts: "Logical Ring Contexts". These expanded contexts enable a number of new abilities, especially "Execlists". The macro is defined to off until we have things in place to hope to work. v2: Rename "advanced contexts" to the more correct "logical ring contexts". v3: Add a module parameter to enable execlists. Execlist are relatively new, and so it'd be wise to be able to switch back to ring submission to debug subtle problems that will inevitably arise. v4: Add an intel_enable_execlists function. v5: Sanitize early, as suggested by Daniel. Remove lrc_enabled. Signed-off-by: Ben Widawsky <ben@bwidawsk.net> (v1) Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> (v3) Signed-off-by: Oscar Mateo <oscar.mateo@intel.com> (v2, v4 & v5) Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
176 lines
6.7 KiB
C
176 lines
6.7 KiB
C
/*
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* Copyright © 2014 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include "i915_drv.h"
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struct i915_params i915 __read_mostly = {
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.modeset = -1,
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.panel_ignore_lid = 1,
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.powersave = 1,
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.semaphores = -1,
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.lvds_downclock = 0,
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.lvds_channel_mode = 0,
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.panel_use_ssc = -1,
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.vbt_sdvo_panel_type = -1,
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.enable_rc6 = -1,
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.enable_fbc = -1,
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.enable_execlists = -1,
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.enable_hangcheck = true,
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.enable_ppgtt = -1,
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.enable_psr = 1,
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.preliminary_hw_support = IS_ENABLED(CONFIG_DRM_I915_PRELIMINARY_HW_SUPPORT),
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.disable_power_well = 1,
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.enable_ips = 1,
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.fastboot = 0,
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.prefault_disable = 0,
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.reset = true,
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.invert_brightness = 0,
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.disable_display = 0,
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.enable_cmd_parser = 1,
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.disable_vtd_wa = 0,
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.use_mmio_flip = 0,
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.mmio_debug = 0,
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};
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module_param_named(modeset, i915.modeset, int, 0400);
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MODULE_PARM_DESC(modeset,
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"Use kernel modesetting [KMS] (0=DRM_I915_KMS from .config, "
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"1=on, -1=force vga console preference [default])");
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module_param_named(panel_ignore_lid, i915.panel_ignore_lid, int, 0600);
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MODULE_PARM_DESC(panel_ignore_lid,
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"Override lid status (0=autodetect, 1=autodetect disabled [default], "
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"-1=force lid closed, -2=force lid open)");
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module_param_named(powersave, i915.powersave, int, 0600);
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MODULE_PARM_DESC(powersave,
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"Enable powersavings, fbc, downclocking, etc. (default: true)");
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module_param_named(semaphores, i915.semaphores, int, 0400);
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MODULE_PARM_DESC(semaphores,
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"Use semaphores for inter-ring sync "
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"(default: -1 (use per-chip defaults))");
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module_param_named(enable_rc6, i915.enable_rc6, int, 0400);
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MODULE_PARM_DESC(enable_rc6,
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"Enable power-saving render C-state 6. "
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"Different stages can be selected via bitmask values "
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"(0 = disable; 1 = enable rc6; 2 = enable deep rc6; 4 = enable deepest rc6). "
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"For example, 3 would enable rc6 and deep rc6, and 7 would enable everything. "
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"default: -1 (use per-chip default)");
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module_param_named(enable_fbc, i915.enable_fbc, int, 0600);
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MODULE_PARM_DESC(enable_fbc,
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"Enable frame buffer compression for power savings "
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"(default: -1 (use per-chip default))");
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module_param_named(lvds_downclock, i915.lvds_downclock, int, 0400);
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MODULE_PARM_DESC(lvds_downclock,
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"Use panel (LVDS/eDP) downclocking for power savings "
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"(default: false)");
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module_param_named(lvds_channel_mode, i915.lvds_channel_mode, int, 0600);
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MODULE_PARM_DESC(lvds_channel_mode,
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"Specify LVDS channel mode "
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"(0=probe BIOS [default], 1=single-channel, 2=dual-channel)");
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module_param_named(lvds_use_ssc, i915.panel_use_ssc, int, 0600);
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MODULE_PARM_DESC(lvds_use_ssc,
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"Use Spread Spectrum Clock with panels [LVDS/eDP] "
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"(default: auto from VBT)");
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module_param_named(vbt_sdvo_panel_type, i915.vbt_sdvo_panel_type, int, 0600);
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MODULE_PARM_DESC(vbt_sdvo_panel_type,
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"Override/Ignore selection of SDVO panel mode in the VBT "
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"(-2=ignore, -1=auto [default], index in VBT BIOS table)");
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module_param_named(reset, i915.reset, bool, 0600);
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MODULE_PARM_DESC(reset, "Attempt GPU resets (default: true)");
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module_param_named(enable_hangcheck, i915.enable_hangcheck, bool, 0644);
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MODULE_PARM_DESC(enable_hangcheck,
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"Periodically check GPU activity for detecting hangs. "
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"WARNING: Disabling this can cause system wide hangs. "
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"(default: true)");
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module_param_named(enable_ppgtt, i915.enable_ppgtt, int, 0400);
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MODULE_PARM_DESC(enable_ppgtt,
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"Override PPGTT usage. "
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"(-1=auto [default], 0=disabled, 1=aliasing, 2=full)");
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module_param_named(enable_execlists, i915.enable_execlists, int, 0400);
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MODULE_PARM_DESC(enable_execlists,
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"Override execlists usage. "
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"(-1=auto [default], 0=disabled, 1=enabled)");
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module_param_named(enable_psr, i915.enable_psr, int, 0600);
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MODULE_PARM_DESC(enable_psr, "Enable PSR (default: true)");
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module_param_named(preliminary_hw_support, i915.preliminary_hw_support, int, 0600);
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MODULE_PARM_DESC(preliminary_hw_support,
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"Enable preliminary hardware support.");
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module_param_named(disable_power_well, i915.disable_power_well, int, 0600);
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MODULE_PARM_DESC(disable_power_well,
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"Disable the power well when possible (default: true)");
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module_param_named(enable_ips, i915.enable_ips, int, 0600);
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MODULE_PARM_DESC(enable_ips, "Enable IPS (default: true)");
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module_param_named(fastboot, i915.fastboot, bool, 0600);
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MODULE_PARM_DESC(fastboot,
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"Try to skip unnecessary mode sets at boot time (default: false)");
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module_param_named(prefault_disable, i915.prefault_disable, bool, 0600);
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MODULE_PARM_DESC(prefault_disable,
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"Disable page prefaulting for pread/pwrite/reloc (default:false). "
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"For developers only.");
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module_param_named(invert_brightness, i915.invert_brightness, int, 0600);
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MODULE_PARM_DESC(invert_brightness,
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"Invert backlight brightness "
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"(-1 force normal, 0 machine defaults, 1 force inversion), please "
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"report PCI device ID, subsystem vendor and subsystem device ID "
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"to dri-devel@lists.freedesktop.org, if your machine needs it. "
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"It will then be included in an upcoming module version.");
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module_param_named(disable_display, i915.disable_display, bool, 0600);
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MODULE_PARM_DESC(disable_display, "Disable display (default: false)");
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module_param_named(disable_vtd_wa, i915.disable_vtd_wa, bool, 0600);
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MODULE_PARM_DESC(disable_vtd_wa, "Disable all VT-d workarounds (default: false)");
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module_param_named(enable_cmd_parser, i915.enable_cmd_parser, int, 0600);
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MODULE_PARM_DESC(enable_cmd_parser,
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"Enable command parsing (1=enabled [default], 0=disabled)");
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module_param_named(use_mmio_flip, i915.use_mmio_flip, int, 0600);
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MODULE_PARM_DESC(use_mmio_flip,
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"use MMIO flips (-1=never, 0=driver discretion [default], 1=always)");
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module_param_named(mmio_debug, i915.mmio_debug, bool, 0600);
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MODULE_PARM_DESC(mmio_debug,
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"Enable the MMIO debug code (default: false). This may negatively "
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"affect performance.");
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