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The GSC uC needs to communicate with the CSME to perform certain operations. Since the GSC can't perform this communication directly on platforms where it is integrated in GT, the graphics driver needs to transfer the messages from GSC to CSME and back. The proxy flow must be manually started after the GSC is loaded to signal to GSC that we're ready to handle its messages and allow it to query its init data from CSME. Note that the component must be removed before the pci_remove call completes, so we can't use a drmm helper for it and we need to instead perform the cleanup as part of the removal flow. v2: add function documentation, more targeted memory clear, clearer logs and variable names (Alan) Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Alan Previn <alan.previn.teres.alexis@intel.com> Cc: Suraj Kandpal <suraj.kandpal@intel.com> Reviewed-by: Alan Previn <alan.previn.teres.alexis@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240117182621.2653049-2-daniele.ceraolospurio@intel.com
22 lines
461 B
C
22 lines
461 B
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2023 Intel Corporation
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*/
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#ifndef _XE_GSC_H_
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#define _XE_GSC_H_
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#include "xe_gsc_types.h"
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struct xe_gt;
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int xe_gsc_init(struct xe_gsc *gsc);
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int xe_gsc_init_post_hwconfig(struct xe_gsc *gsc);
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void xe_gsc_wait_for_worker_completion(struct xe_gsc *gsc);
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void xe_gsc_load_start(struct xe_gsc *gsc);
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void xe_gsc_remove(struct xe_gsc *gsc);
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void xe_gsc_wa_14015076503(struct xe_gt *gt, bool prep);
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#endif
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