cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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xdpe12284.rst (2456B)

      1.. SPDX-License-Identifier: GPL-2.0
      2
      3Kernel driver xdpe122
      4=====================
      5
      6Supported chips:
      7
      8  * Infineon XDPE11280
      9
     10    Prefix: 'xdpe11280'
     11
     12  * Infineon XDPE12254
     13
     14    Prefix: 'xdpe12254'
     15
     16  * Infineon XDPE12284
     17
     18    Prefix: 'xdpe12284'
     19
     20Authors:
     21
     22	Vadim Pasternak <vadimp@mellanox.com>
     23
     24Description
     25-----------
     26
     27This driver implements support for Infineon Multi-phase XDPE112 and XDPE122
     28family dual loop voltage regulators.
     29These families include XDPE11280, XDPE12284 and XDPE12254 devices.
     30The devices from this family compliant with:
     31
     32- Intel VR13 and VR13HC rev 1.3, IMVP8 rev 1.2 and IMPVP9 rev 1.3 DC-DC
     33  converter specification.
     34- Intel SVID rev 1.9. protocol.
     35- PMBus rev 1.3 interface.
     36
     37Devices support linear format for reading input voltage, input and output current,
     38input and output power and temperature.
     39Device supports VID format for reading output voltage. The below modes are
     40supported:
     41- VR12.0 mode, 5-mV DAC - 0x01.
     42- VR12.5 mode, 10-mV DAC - 0x02.
     43- IMVP9 mode, 5-mV DAC - 0x03.
     44- AMD mode 6.25mV - 0x10.
     45
     46Devices support two pages for telemetry.
     47
     48The driver provides for current: input, maximum and critical thresholds
     49and maximum and critical alarms. Critical thresholds and critical alarm are
     50supported only for current output.
     51The driver exports the following attributes for via the sysfs files, where
     52indexes 1, 2 are for "iin" and 3, 4 for "iout":
     53
     54**curr[3-4]_crit**
     55
     56**curr[3-4]_crit_alarm**
     57
     58**curr[1-4]_input**
     59
     60**curr[1-4]_label**
     61
     62**curr[1-4]_max**
     63
     64**curr[1-4]_max_alarm**
     65
     66The driver provides for voltage: input, critical and low critical thresholds
     67and critical and low critical alarms.
     68The driver exports the following attributes for via the sysfs files, where
     69indexes 1, 2 are for "vin" and 3, 4 for "vout":
     70
     71**in[1-4]_crit**
     72
     73**in[1-4_crit_alarm**
     74
     75**in[1-4]_input**
     76
     77**in[1-4_label**
     78
     79**in[1-4]_lcrit**
     80
     81**in[1-41_lcrit_alarm**
     82
     83The driver provides for power: input and alarms. Power alarm is supported only
     84for power input.
     85The driver exports the following attributes for via the sysfs files, where
     86indexes 1, 2 are for "pin" and 3, 4 for "pout":
     87
     88**power[1-2]_alarm**
     89
     90**power[1-4]_input**
     91
     92**power[1-4]_label**
     93
     94The driver provides for temperature: input, maximum and critical thresholds
     95and maximum and critical alarms.
     96The driver exports the following attributes for via the sysfs files:
     97
     98**temp[1-2]_crit**
     99
    100**temp[1-2]_crit_alarm**
    101
    102**temp[1-2]_input**
    103
    104**temp[1-2]_max**
    105
    106**temp[1-2]_max_alarm**