4ec5d0231d
Add fields to struct intel_vsec_device, so that core module (which creates aux bus devices) can pass private data to the client drivers. For example there is one vsec device instance per CPU package. On a multi package system, this private data can be used to pass the package ID. This package id can be used by client drivers to change power settings for a specific CPU package by targeting MMIO space of the correct PCI device. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Acked-by: David E. Box <david.e.box@linux.intel.com> Link: https://lore.kernel.org/r/20230202010738.2186174-4-srinivas.pandruvada@linux.intel.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _VSEC_H
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#define _VSEC_H
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#include <linux/auxiliary_bus.h>
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#include <linux/bits.h>
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struct pci_dev;
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struct resource;
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enum intel_vsec_quirks {
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/* Watcher feature not supported */
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VSEC_QUIRK_NO_WATCHER = BIT(0),
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/* Crashlog feature not supported */
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VSEC_QUIRK_NO_CRASHLOG = BIT(1),
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/* Use shift instead of mask to read discovery table offset */
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VSEC_QUIRK_TABLE_SHIFT = BIT(2),
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/* DVSEC not present (provided in driver data) */
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VSEC_QUIRK_NO_DVSEC = BIT(3),
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/* Platforms requiring quirk in the auxiliary driver */
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VSEC_QUIRK_EARLY_HW = BIT(4),
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};
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/* Platform specific data */
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struct intel_vsec_platform_info {
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struct intel_vsec_header **capabilities;
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unsigned long quirks;
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};
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struct intel_vsec_device {
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struct auxiliary_device auxdev;
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struct pci_dev *pcidev;
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struct resource *resource;
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struct ida *ida;
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struct intel_vsec_platform_info *info;
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int num_resources;
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void *priv_data;
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size_t priv_data_size;
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};
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int intel_vsec_add_aux(struct pci_dev *pdev, struct device *parent,
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struct intel_vsec_device *intel_vsec_dev,
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const char *name);
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static inline struct intel_vsec_device *dev_to_ivdev(struct device *dev)
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{
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return container_of(dev, struct intel_vsec_device, auxdev.dev);
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}
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static inline struct intel_vsec_device *auxdev_to_ivdev(struct auxiliary_device *auxdev)
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{
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return container_of(auxdev, struct intel_vsec_device, auxdev);
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}
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#endif
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