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The i915.alpha_support module parameter has caused some confusion along the way. Add new i915.force_probe parameter to specify PCI IDs of devices to probe, when the devices are recognized but not automatically probed by the driver. The name is intended to reflect what the parameter effectively does, avoiding any overloaded semantics of "alpha" and "support". The parameter supports "" to disable, "<pci-id>,[<pci-id>,...]" to enable force probe for one or more devices, and "*" to enable force probe for all known devices. Also add new CONFIG_DRM_I915_FORCE_PROBE config option to replace the DRM_I915_ALPHA_SUPPORT option. This defaults to "*" if DRM_I915_ALPHA_SUPPORT=y. Instead of replacing i915.alpha_support immediately, let the two coexist for a while, with a deprecation message, for a transition period. Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190506134801.28751-1-jani.nikula@intel.com
96 lines
3.4 KiB
C
96 lines
3.4 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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/*
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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)
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*
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* type: parameter type, one of {bool, int, unsigned int, 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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*/
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#define I915_PARAMS_FOR_EACH(param) \
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param(char *, vbt_firmware, NULL) \
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param(int, modeset, -1) \
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param(int, lvds_channel_mode, 0) \
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param(int, panel_use_ssc, -1) \
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param(int, vbt_sdvo_panel_type, -1) \
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param(int, enable_dc, -1) \
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param(int, enable_fbc, -1) \
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param(int, enable_psr, -1) \
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param(int, disable_power_well, -1) \
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param(int, enable_ips, 1) \
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param(int, invert_brightness, 0) \
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param(int, enable_guc, 0) \
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param(int, guc_log_level, -1) \
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param(char *, guc_firmware_path, NULL) \
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param(char *, huc_firmware_path, NULL) \
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param(char *, dmc_firmware_path, NULL) \
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param(int, mmio_debug, -IS_ENABLED(CONFIG_DRM_I915_DEBUG_MMIO)) \
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param(int, edp_vswing, 0) \
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param(int, reset, 2) \
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param(unsigned int, inject_load_failure, 0) \
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param(int, fastboot, -1) \
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param(char *, force_probe, CONFIG_DRM_I915_FORCE_PROBE) \
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/* leave bools at the end to not create holes */ \
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param(bool, alpha_support, IS_ENABLED(CONFIG_DRM_I915_ALPHA_SUPPORT)) \
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param(bool, enable_hangcheck, true) \
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param(bool, prefault_disable, false) \
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param(bool, load_detect_test, false) \
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param(bool, force_reset_modeset_test, false) \
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param(bool, error_capture, true) \
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param(bool, disable_display, false) \
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param(bool, verbose_state_checks, true) \
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param(bool, nuclear_pageflip, false) \
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param(bool, enable_dp_mst, true) \
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param(bool, enable_dpcd_backlight, false) \
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param(bool, enable_gvt, false)
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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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