linux/drivers/gpu/drm/xe/xe_sriov_pf.c

// SPDX-License-Identifier: MIT
/*
 * Copyright © 2023-2024 Intel Corporation
 */

#include <drm/drm_managed.h>

#include "xe_assert.h"
#include "xe_device.h"
#include "xe_module.h"
#include "xe_sriov.h"
#include "xe_sriov_pf.h"
#include "xe_sriov_printk.h"

static unsigned int wanted_max_vfs(struct xe_device *xe)
{ … }

static int pf_reduce_totalvfs(struct xe_device *xe, int limit)
{ … }

static bool pf_continue_as_native(struct xe_device *xe, const char *why)
{ … }

/**
 * xe_sriov_pf_readiness - Check if PF functionality can be enabled.
 * @xe: the &xe_device to check
 *
 * This function is called as part of the SR-IOV probe to validate if all
 * PF prerequisites are satisfied and we can continue with enabling PF mode.
 *
 * Return: true if the PF mode can be turned on.
 */
bool xe_sriov_pf_readiness(struct xe_device *xe)
{ … }

/**
 * xe_sriov_pf_init_early - Initialize SR-IOV PF specific data.
 * @xe: the &xe_device to initialize
 *
 * Return: 0 on success or a negative error code on failure.
 */
int xe_sriov_pf_init_early(struct xe_device *xe)
{ … }

/**
 * xe_sriov_pf_print_vfs_summary - Print SR-IOV PF information.
 * @xe: the &xe_device to print info from
 * @p: the &drm_printer
 *
 * Print SR-IOV PF related information into provided DRM printer.
 */
void xe_sriov_pf_print_vfs_summary(struct xe_device *xe, struct drm_printer *p)
{ … }