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98a2f41167
We currently capture the GPU state after we detect a hang. This is vital for us to both triage and debug hangs in the wild (post-mortem debugging). However, it comes at the cost of running some potentially dangerous code (since it has to make very few assumption about the state of the driver) that is quite resource intensive. This patch introduces both a method to disable error capture at runtime (for users who hit bugs at runtime and need a workaround) and to disable error capture at compiletime (for realtime users who want to minimise any possible latency, and never require error capture, saving ~30k of code). The cost is that we now have to be wary of (and test!) a kconfig flag and a module parameter. The effect of the module parameter is easy to verify through code inspection and runtime testing, but a kconfig flag needs regular compile checking. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Acked-by: Jani Nikula <jani.nikula@linux.intel.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch Link: http://patchwork.freedesktop.org/patch/msgid/20161012090522.367-2-chris@chris-wilson.co.uk
74 lines
2.2 KiB
C
74 lines
2.2 KiB
C
/*
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* Copyright © 2015 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 "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* 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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*/
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#ifndef _I915_PARAMS_H_
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#define _I915_PARAMS_H_
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#include <linux/cache.h> /* for __read_mostly */
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struct i915_params {
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int modeset;
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int panel_ignore_lid;
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int semaphores;
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int lvds_channel_mode;
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int panel_use_ssc;
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int vbt_sdvo_panel_type;
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int enable_rc6;
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int enable_dc;
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int enable_fbc;
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int enable_ppgtt;
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int enable_execlists;
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int enable_psr;
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unsigned int preliminary_hw_support;
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int disable_power_well;
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int enable_ips;
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int invert_brightness;
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int enable_cmd_parser;
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int enable_guc_loading;
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int enable_guc_submission;
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int guc_log_level;
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int use_mmio_flip;
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int mmio_debug;
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int edp_vswing;
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unsigned int inject_load_failure;
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/* leave bools at the end to not create holes */
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bool enable_hangcheck;
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bool fastboot;
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bool prefault_disable;
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bool load_detect_test;
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bool force_reset_modeset_test;
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bool reset;
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bool error_capture;
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bool disable_display;
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bool verbose_state_checks;
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bool nuclear_pageflip;
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bool enable_dp_mst;
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bool enable_dpcd_backlight;
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bool enable_gvt;
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};
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extern struct i915_params i915 __read_mostly;
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#endif
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