diff options
| author | David E. Box <david.e.box@linux.intel.com> | 2023-11-29 14:21:22 -0800 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2023-12-04 14:53:43 +0100 |
| commit | 416eeb2e1fc7b60ab0c7ced26ab966dd7733357d (patch) | |
| tree | 9e4b2f3266b94d3e53978815b372188c25bfb0f9 /drivers/platform/x86/intel/pmt/class.h | |
| parent | 4d1b7efee3fc703c64bacc37c4824888c5f26e8b (diff) | |
platform/x86/intel/pmt: telemetry: Export API to read telemetry
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>
Diffstat (limited to 'drivers/platform/x86/intel/pmt/class.h')
| -rw-r--r-- | drivers/platform/x86/intel/pmt/class.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/platform/x86/intel/pmt/class.h b/drivers/platform/x86/intel/pmt/class.h index e477a19f6700..d23c63b73ab7 100644 --- a/drivers/platform/x86/intel/pmt/class.h +++ b/drivers/platform/x86/intel/pmt/class.h @@ -9,6 +9,7 @@ #include <linux/io.h> #include "../vsec.h" +#include "telemetry.h" /* PMT access types */ #define ACCESS_BARID 2 @@ -18,6 +19,16 @@ #define GET_BIR(v) ((v) & GENMASK(2, 0)) #define GET_ADDRESS(v) ((v) & GENMASK(31, 3)) +struct pci_dev; + +struct telem_endpoint { + struct pci_dev *pcidev; + struct telem_header header; + void __iomem *base; + bool present; + struct kref kref; +}; + struct intel_pmt_header { u32 base_offset; u32 size; @@ -26,6 +37,7 @@ struct intel_pmt_header { }; struct intel_pmt_entry { + struct telem_endpoint *ep; struct intel_pmt_header header; struct bin_attribute pmt_bin_attr; struct kobject *kobj; @@ -43,6 +55,8 @@ struct intel_pmt_namespace { const struct attribute_group *attr_grp; int (*pmt_header_decode)(struct intel_pmt_entry *entry, struct device *dev); + int (*pmt_add_endpoint)(struct intel_pmt_entry *entry, + struct pci_dev *pdev); }; bool intel_pmt_is_early_client_hw(struct device *dev); |