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 --- drivers/hwtracing/intel_th/acpi.c | 85 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 85 insertions(+) create mode 100644 drivers/hwtracing/intel_th/acpi.c (limited to 'drivers/hwtracing/intel_th/acpi.c') diff --git a/drivers/hwtracing/intel_th/acpi.c b/drivers/hwtracing/intel_th/acpi.c new file mode 100644 index 000000000..87f9024e4 --- /dev/null +++ b/drivers/hwtracing/intel_th/acpi.c @@ -0,0 +1,85 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Intel(R) Trace Hub ACPI driver + * + * Copyright (C) 2017 Intel Corporation. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include +#include +#include +#include +#include +#include + +#include "intel_th.h" + +#define DRIVER_NAME "intel_th_acpi" + +static const struct intel_th_drvdata intel_th_acpi_pch = { + .host_mode_only = 1, +}; + +static const struct intel_th_drvdata intel_th_acpi_uncore = { + .host_mode_only = 1, +}; + +static const struct acpi_device_id intel_th_acpi_ids[] = { + { "INTC1000", (kernel_ulong_t)&intel_th_acpi_uncore }, + { "INTC1001", (kernel_ulong_t)&intel_th_acpi_pch }, + { "", 0 }, +}; + +MODULE_DEVICE_TABLE(acpi, intel_th_acpi_ids); + +static int intel_th_acpi_probe(struct platform_device *pdev) +{ + struct acpi_device *adev = ACPI_COMPANION(&pdev->dev); + struct resource resource[TH_MMIO_END]; + const struct acpi_device_id *id; + struct intel_th *th; + int i, r; + + id = acpi_match_device(intel_th_acpi_ids, &pdev->dev); + if (!id) + return -ENODEV; + + for (i = 0, r = 0; i < pdev->num_resources && r < TH_MMIO_END; i++) + if (pdev->resource[i].flags & + (IORESOURCE_IRQ | IORESOURCE_MEM)) + resource[r++] = pdev->resource[i]; + + th = intel_th_alloc(&pdev->dev, (void *)id->driver_data, resource, r); + if (IS_ERR(th)) + return PTR_ERR(th); + + adev->driver_data = th; + + return 0; +} + +static int intel_th_acpi_remove(struct platform_device *pdev) +{ + struct intel_th *th = platform_get_drvdata(pdev); + + intel_th_free(th); + + return 0; +} + +static struct platform_driver intel_th_acpi_driver = { + .probe = intel_th_acpi_probe, + .remove = intel_th_acpi_remove, + .driver = { + .name = DRIVER_NAME, + .acpi_match_table = intel_th_acpi_ids, + }, +}; + +module_platform_driver(intel_th_acpi_driver); + +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("Intel(R) Trace Hub ACPI controller driver"); +MODULE_AUTHOR("Alexander Shishkin "); -- cgit v1.2.3