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741eeabb7c
Introduce a new MEI client driver to support Late Binding firmware upload/update for Intel discrete graphics platforms. Late Binding is a runtime firmware upload/update mechanism that allows payloads, such as fan control and voltage regulator, to be securely delivered and applied without requiring SPI flash updates or system reboots. This driver enables the Xe graphics driver and other user-space tools to push such firmware blobs to the authentication firmware via the MEI interface. The driver handles authentication, versioning, and communication with the authentication firmware, which in turn coordinates with the PUnit/PCODE to apply the payload. This is a foundational component for enabling dynamic, secure, and re-entrant configuration updates on platforms like Battlemage. Cc: Badal Nilawar <badal.nilawar@intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Badal Nilawar <badal.nilawar@intel.com> Reviewed-by: Anshuman Gupta <anshuman.gupta@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20250905154953.3974335-3-badal.nilawar@intel.com Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
58 lines
1.8 KiB
C
58 lines
1.8 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 "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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#ifndef _I915_COMPONENT_H_
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#define _I915_COMPONENT_H_
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#include <drm/drm_audio_component.h>
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enum i915_component_type {
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I915_COMPONENT_AUDIO = 1,
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I915_COMPONENT_HDCP,
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I915_COMPONENT_PXP,
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I915_COMPONENT_GSC_PROXY,
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INTEL_COMPONENT_LB,
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};
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/* MAX_PORT is the number of port
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* It must be sync with I915_MAX_PORTS defined i915_drv.h
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*/
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#define MAX_PORTS 9
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/**
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* struct i915_audio_component - Used for direct communication between i915 and hda drivers
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*/
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struct i915_audio_component {
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/**
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* @base: the drm_audio_component base class
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*/
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struct drm_audio_component base;
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/**
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* @aud_sample_rate: the array of audio sample rate per port
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*/
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int aud_sample_rate[MAX_PORTS];
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};
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#endif /* _I915_COMPONENT_H_ */
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