416eeb2e1f
Export symbols to allow access to Intel PMT Telemetry data on available devices. Provides APIs to search, register, and read telemetry using a kref managed pointer that serves as a handle to a telemetry endpoint. To simplify searching for present devices, have the IDA start at 1 instead of 0 so that 0 can be used to indicate end of search. Signed-off-by: David E. Box <david.e.box@linux.intel.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20231129222132.2331261-11-david.e.box@linux.intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
68 lines
1.5 KiB
C
68 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _INTEL_PMT_CLASS_H
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#define _INTEL_PMT_CLASS_H
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#include <linux/xarray.h>
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#include <linux/types.h>
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#include <linux/bits.h>
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#include <linux/err.h>
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#include <linux/io.h>
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#include "../vsec.h"
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#include "telemetry.h"
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/* PMT access types */
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#define ACCESS_BARID 2
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#define ACCESS_LOCAL 3
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/* PMT discovery base address/offset register layout */
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#define GET_BIR(v) ((v) & GENMASK(2, 0))
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#define GET_ADDRESS(v) ((v) & GENMASK(31, 3))
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struct pci_dev;
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struct telem_endpoint {
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struct pci_dev *pcidev;
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struct telem_header header;
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void __iomem *base;
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bool present;
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struct kref kref;
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};
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struct intel_pmt_header {
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u32 base_offset;
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u32 size;
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u32 guid;
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u8 access_type;
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};
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struct intel_pmt_entry {
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struct telem_endpoint *ep;
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struct intel_pmt_header header;
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struct bin_attribute pmt_bin_attr;
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struct kobject *kobj;
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void __iomem *disc_table;
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void __iomem *base;
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unsigned long base_addr;
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size_t size;
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u32 guid;
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int devid;
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};
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struct intel_pmt_namespace {
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const char *name;
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struct xarray *xa;
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const struct attribute_group *attr_grp;
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int (*pmt_header_decode)(struct intel_pmt_entry *entry,
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struct device *dev);
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int (*pmt_add_endpoint)(struct intel_pmt_entry *entry,
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struct pci_dev *pdev);
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};
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bool intel_pmt_is_early_client_hw(struct device *dev);
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int intel_pmt_dev_create(struct intel_pmt_entry *entry,
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struct intel_pmt_namespace *ns,
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struct intel_vsec_device *dev, int idx);
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void intel_pmt_dev_destroy(struct intel_pmt_entry *entry,
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struct intel_pmt_namespace *ns);
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#endif
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