Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/xe/soc_remapper: Initialize SoC remapper during Xe probe
SoC remapper is used to map different HW functions in the SoC to their
respective drivers. Initialize SoC remapper during driver load.
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Reviewed-by: Badal Nilawar <badal.nilawar@intel.com>
Link: https://patch.msgid.link/20251223183943.3175941-6-umesh.nerlige.ramappa@intel.com
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+1
drivers/gpu/drm/xe/Makefile
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drivers/gpu/drm/xe/Makefile
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drivers/gpu/drm/xe/xe_device.c
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drivers/gpu/drm/xe/xe_device.c
···
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#include "xe_pxp.h"
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#include "xe_query.h"
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#include "xe_shrinker.h"
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#include "xe_soc_remapper.h"
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#include "xe_survivability_mode.h"
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#include "xe_sriov.h"
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#include "xe_svm.h"
···
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return err;
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xe_nvm_init(xe);
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err = xe_soc_remapper_init(xe);
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if (err)
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return err;
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err = xe_heci_gsc_init(xe);
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if (err)
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drivers/gpu/drm/xe/xe_device_types.h
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drivers/gpu/drm/xe/xe_device_types.h
···
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struct mutex lock;
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} pmt;
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/** @soc_remapper: SoC remapper object */
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struct {
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/** @soc_remapper.lock: Serialize access to SoC Remapper's index registers */
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spinlock_t lock;
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} soc_remapper;
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/**
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* @pm_callback_task: Track the active task that is running in either
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* the runtime_suspend or runtime_resume callbacks.
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drivers/gpu/drm/xe/xe_soc_remapper.c
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drivers/gpu/drm/xe/xe_soc_remapper.c
···
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// SPDX-License-Identifier: MIT
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/*
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* Copyright © 2025 Intel Corporation
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*/
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#include "xe_soc_remapper.h"
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/**
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* xe_soc_remapper_init() - Initialize SoC remapper
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* @xe: Pointer to xe device.
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*
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* Initialize SoC remapper.
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*
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* Return: 0 on success, error code on failure
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*/
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int xe_soc_remapper_init(struct xe_device *xe)
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{
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spin_lock_init(&xe->soc_remapper.lock);
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return 0;
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}
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drivers/gpu/drm/xe/xe_soc_remapper.h
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drivers/gpu/drm/xe/xe_soc_remapper.h