• Oded Gabbay's avatar
    habanalabs: add sysfs and hwmon support · d91389bc
    Oded Gabbay authored
    This patch add the sysfs and hwmon entries that are exposed by the driver.
    Goya has several sensors, from various categories such as temperature,
    voltage, current, etc. The driver exposes those sensors in the standard
    hwmon mechanism.
    In addition, the driver exposes a couple of interfaces in sysfs, both for
    configuration and for providing status of the device or driver.
    The configuration attributes is for Power Management:
    - Automatic or manual
    - Frequency value when moving to high frequency mode
    - Maximum power the device is allowed to consume
    The rest of the attributes are read-only and provide the following
    - Versions of the various firmwares running on the device
    - Contents of the device's EEPROM
    - The device type (currently only Goya is supported)
    - PCI address of the device (to allow user-space to connect between
      /dev/hlX to PCI address)
    - Status of the device (operational, malfunction, in_reset)
    - How many processes are open on the device's file
    Reviewed-by: default avatarMike Rapoport <rppt@linux.ibm.com>
    Signed-off-by: default avatarOded Gabbay <oded.gabbay@gmail.com>
    Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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