SR-IOV of Intel GPU seems to be available, and the work of merging the code into the mainline kernel is in progress

Dark_iaji · July 8, 2022, 7:43am

SR-IOV of Intel GPU seems to be available, and the work of merging the code into the mainline kernel is in progress.

intel/linux-intel-lts/blob/lts-v5.10.120-yocto-220627T062711Z/drivers/gpu/drm/i915/i915_sriov.c

// SPDX-License-Identifier: MIT
/*
 * Copyright © 2022 Intel Corporation
 */

#include "i915_sriov.h"
#include "i915_sriov_sysfs.h"
#include "i915_drv.h"

#include "gt/intel_gt.h"
#include "gt/intel_gt_pm.h"
#include "gt/iov/intel_iov_provisioning.h"
#include "gt/iov/intel_iov_utils.h"

/* safe for use before register access via uncore is completed */
static u32 pci_peek_mmio_read32(struct pci_dev *pdev, i915_reg_t reg)
{
	unsigned long offset = i915_mmio_reg_offset(reg);
	void __iomem *addr;
	u32 value;

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I did find the relevant code of SR-IOV in this repository, but the kernel version is a little old. Maybe it can be ported to the mainline kernel through DKMS or patches? After all, code consolidation may not be completed until the end of 2023.

Now more tests are needed, such as whether the UHD750 is available, whether the A380 is available, and whether it is available on the AMD platform. These should all need community testing.

In any case, this seems to be the end of our long Odyssey, and a new chapter will be written.