1 Device instance to test mapping 1 Device instance to test mapping
2 intel_ifs_0 -> Scan Test 2 intel_ifs_0 -> Scan Test
3 intel_ifs_1 -> Array BIST test 3 intel_ifs_1 -> Array BIST test
4 4
5 What: /sys/devices/virtual/misc/inte 5 What: /sys/devices/virtual/misc/intel_ifs_<N>/run_test
6 Date: Nov 16 2022 6 Date: Nov 16 2022
7 KernelVersion: 6.2 7 KernelVersion: 6.2
8 Contact: "Jithu Joseph" <jithu.joseph@in 8 Contact: "Jithu Joseph" <jithu.joseph@intel.com>
9 Description: Write <cpu#> to trigger IFS te 9 Description: Write <cpu#> to trigger IFS test for one online core.
10 Note that the test is per core 10 Note that the test is per core. The cpu# can be
11 for any thread on the core. Ru 11 for any thread on the core. Running on one thread
12 completes the test for the cor 12 completes the test for the core containing that thread.
13 Example: to test the core cont 13 Example: to test the core containing cpu5: echo 5 >
14 /sys/devices/virtual/misc/inte 14 /sys/devices/virtual/misc/intel_ifs_<N>/run_test
15 Devices: all 15 Devices: all
16 16
17 What: /sys/devices/virtual/misc/inte 17 What: /sys/devices/virtual/misc/intel_ifs_<N>/status
18 Date: Nov 16 2022 18 Date: Nov 16 2022
19 KernelVersion: 6.2 19 KernelVersion: 6.2
20 Contact: "Jithu Joseph" <jithu.joseph@in 20 Contact: "Jithu Joseph" <jithu.joseph@intel.com>
21 Description: The status of the last test. I 21 Description: The status of the last test. It can be one of "pass", "fail"
22 or "untested". 22 or "untested".
23 Devices: all 23 Devices: all
24 24
25 What: /sys/devices/virtual/misc/inte 25 What: /sys/devices/virtual/misc/intel_ifs_<N>/details
26 Date: Nov 16 2022 26 Date: Nov 16 2022
27 KernelVersion: 6.2 27 KernelVersion: 6.2
28 Contact: "Jithu Joseph" <jithu.joseph@in 28 Contact: "Jithu Joseph" <jithu.joseph@intel.com>
29 Description: Additional information regardi 29 Description: Additional information regarding the last test. The details file reports
30 the hex value of the STATUS MS 30 the hex value of the STATUS MSR for this test. Note that the error_code field
31 may contain driver defined sof 31 may contain driver defined software code not defined in the Intel SDM.
32 Devices: all 32 Devices: all
33 33
34 What: /sys/devices/virtual/misc/inte 34 What: /sys/devices/virtual/misc/intel_ifs_<N>/image_version
35 Date: Nov 16 2022 35 Date: Nov 16 2022
36 KernelVersion: 6.2 36 KernelVersion: 6.2
37 Contact: "Jithu Joseph" <jithu.joseph@in 37 Contact: "Jithu Joseph" <jithu.joseph@intel.com>
38 Description: Version (hexadecimal) of loade 38 Description: Version (hexadecimal) of loaded IFS test image. If no test image
39 is loaded reports "none". Only 39 is loaded reports "none". Only present for device instances where a test image
40 is applicable. 40 is applicable.
41 Devices: intel_ifs_0 41 Devices: intel_ifs_0
42 42
43 What: /sys/devices/virtual/misc/inte 43 What: /sys/devices/virtual/misc/intel_ifs_<N>/current_batch
44 Date: Nov 16 2022 44 Date: Nov 16 2022
45 KernelVersion: 6.2 45 KernelVersion: 6.2
46 Contact: "Jithu Joseph" <jithu.joseph@in 46 Contact: "Jithu Joseph" <jithu.joseph@intel.com>
47 Description: Write a number less than or eq 47 Description: Write a number less than or equal to 0xff to load an IFS test image.
48 The number written treated as 48 The number written treated as the 2 digit suffix in the following file name:
49 /lib/firmware/intel/ifs_<N>/ff 49 /lib/firmware/intel/ifs_<N>/ff-mm-ss-02x.scan
50 Reading the file will provide 50 Reading the file will provide the suffix of the currently loaded IFS test image.
51 This file is present only for 51 This file is present only for device instances where a test image is applicable.
52 Devices: intel_ifs_0 52 Devices: intel_ifs_0
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