1e58215f06
There is a module parameter for controlling what GuC/HuC features are enabled. Setting to -1 means 'use the default'. However, the default was not well defined, out of date and needs to be different across platforms. The default is now to disable both GuC and HuC on legacy platforms where legacy means TGL/RKL and anything prior to Gen12. For new platforms, the default is to load HuC but not enable GuC submission as that has not landed yet. Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20210113220724.2484897-1-John.C.Harrison@Intel.com
100 lines
3.7 KiB
C
100 lines
3.7 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/bitops.h>
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#include <linux/cache.h> /* for __read_mostly */
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struct drm_printer;
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#define ENABLE_GUC_SUBMISSION BIT(0)
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#define ENABLE_GUC_LOAD_HUC BIT(1)
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#define ENABLE_GUC_MASK GENMASK(1, 0)
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/*
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* Invoke param, a function-like macro, for each i915 param, with arguments:
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*
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* param(type, name, value, mode)
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*
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* type: parameter type, one of {bool, int, unsigned int, unsigned long, char *}
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* name: name of the parameter
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* value: initial/default value of the parameter
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* mode: debugfs file permissions, one of {0400, 0600, 0}, use 0 to not create
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* debugfs file
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*/
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#define I915_PARAMS_FOR_EACH(param) \
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param(char *, vbt_firmware, NULL, 0400) \
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param(int, modeset, -1, 0400) \
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param(int, lvds_channel_mode, 0, 0400) \
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param(int, panel_use_ssc, -1, 0600) \
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param(int, vbt_sdvo_panel_type, -1, 0400) \
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param(int, enable_dc, -1, 0400) \
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param(int, enable_fbc, -1, 0600) \
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param(int, enable_psr, -1, 0600) \
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param(bool, psr_safest_params, false, 0600) \
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param(bool, enable_psr2_sel_fetch, false, 0600) \
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param(int, disable_power_well, -1, 0400) \
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param(int, enable_ips, 1, 0600) \
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param(int, invert_brightness, 0, 0600) \
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param(int, enable_guc, 0, 0400) \
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param(int, guc_log_level, -1, 0400) \
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param(char *, guc_firmware_path, NULL, 0400) \
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param(char *, huc_firmware_path, NULL, 0400) \
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param(char *, dmc_firmware_path, NULL, 0400) \
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param(int, mmio_debug, -IS_ENABLED(CONFIG_DRM_I915_DEBUG_MMIO), 0600) \
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param(int, edp_vswing, 0, 0400) \
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param(unsigned int, reset, 3, 0600) \
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param(unsigned int, inject_probe_failure, 0, 0) \
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param(int, fastboot, -1, 0600) \
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param(int, enable_dpcd_backlight, -1, 0600) \
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param(char *, force_probe, CONFIG_DRM_I915_FORCE_PROBE, 0400) \
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param(unsigned long, fake_lmem_start, 0, 0400) \
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/* leave bools at the end to not create holes */ \
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param(bool, enable_hangcheck, true, 0600) \
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param(bool, load_detect_test, false, 0600) \
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param(bool, force_reset_modeset_test, false, 0600) \
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param(bool, error_capture, true, 0600) \
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param(bool, disable_display, false, 0400) \
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param(bool, verbose_state_checks, true, 0) \
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param(bool, nuclear_pageflip, false, 0400) \
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param(bool, enable_dp_mst, true, 0600) \
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param(bool, enable_gvt, false, 0400)
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#define MEMBER(T, member, ...) T member;
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struct i915_params {
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I915_PARAMS_FOR_EACH(MEMBER);
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};
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#undef MEMBER
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extern struct i915_params i915_modparams __read_mostly;
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void i915_params_dump(const struct i915_params *params, struct drm_printer *p);
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void i915_params_copy(struct i915_params *dest, const struct i915_params *src);
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void i915_params_free(struct i915_params *params);
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#endif
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