From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- tools/testing/cxl/mock_acpi.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 tools/testing/cxl/mock_acpi.c (limited to 'tools/testing/cxl/mock_acpi.c') diff --git a/tools/testing/cxl/mock_acpi.c b/tools/testing/cxl/mock_acpi.c new file mode 100644 index 000000000..55813de26 --- /dev/null +++ b/tools/testing/cxl/mock_acpi.c @@ -0,0 +1,35 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright(c) 2021 Intel Corporation. All rights reserved. */ + +#include +#include +#include +#include +#include "test/mock.h" + +struct acpi_device *to_cxl_host_bridge(struct device *host, struct device *dev) +{ + int index; + struct acpi_device *adev, *found = NULL; + struct cxl_mock_ops *ops = get_cxl_mock_ops(&index); + + if (ops && ops->is_mock_bridge(dev)) { + found = ACPI_COMPANION(dev); + goto out; + } + + if (dev->bus == &platform_bus_type) + goto out; + + adev = to_acpi_device(dev); + if (!acpi_pci_find_root(adev->handle)) + goto out; + + if (strcmp(acpi_device_hid(adev), "ACPI0016") == 0) { + found = adev; + dev_dbg(host, "found host bridge %s\n", dev_name(&adev->dev)); + } +out: + put_cxl_mock_ops(index); + return found; +} -- cgit v1.2.3