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The only notable >> difference is that, Array BIST doesn't require any test content >> to be loaded. So binary load related options are not needed for >> this test. >> >> Add sysfs interface array BIST test, the testing support will >> be added by subsequent patch. > > What is "sysfs interface array" exactly? Pardon the typo ... meant to write "sysfs interface for array BIST test ..." sysfs entries for this new test will appear under "/sys/devices/virtual/misc/intel_ifs_1/" (whereas the existing scan test entries will be under "/sys/devices/virtual/misc/intel_ifs_0/") > > Where is the new Documentation/ABI/ entries for these new sysfs files > you added? > Current documentation and ABI entries are somewhat generalized (we mention intel_ifs_). Pasting a small snippet below for reference from Documentation/ABI/testing/sysfs-platform-intel-ifs What: /sys/devices/virtual/misc/intel_ifs_/run_test Date: Nov 16 2022 KernelVersion: 6.2 Contact: "Jithu Joseph" Description: Write to trigger IFS test for one online core. Note that the test is per core. The cpu# can be ... I can take another pass through both, to call out the differences wherever applicable (like test image loading is not applicable for array BIST test) ... >> @@ -156,3 +156,18 @@ const struct attribute_group **ifs_get_groups(void) >> { >> return plat_ifs_groups; >> } >> + >> +/* global array sysfs attributes */ >> +static struct attribute *plat_ifs_array_attrs[] = { >> + &dev_attr_details.attr, >> + &dev_attr_status.attr, >> + &dev_attr_run_test.attr, >> + NULL >> +}; >> + >> +ATTRIBUTE_GROUPS(plat_ifs_array); >> + >> +const struct attribute_group **ifs_get_array_groups(void) >> +{ >> + return plat_ifs_array_groups; >> +} > > Why do you need a function to get access to a static variable? Just > make the variable not static. The above was in-line with the existing driver style for the first test But if it is more appropriate, I can move "ATTRIBUTE_GROUPS(plat_ifs_array)" to core.c (where it is consumed) and drop the function Jithu