[PATCH v2 00/24] selftests/resctrl: Fixes, cleanups, and rewritten CAT test

From: Ilpo Järvinen
Date: Tue Apr 18 2023 - 07:45:30 EST


Here is a series with some fixes and cleanups to resctrl selftests and
rewrite of CAT test into something that really tests CAT working or not
condition.

v2:
- Rebased on top of next to solve the conflicts
- Added 2 patches related to resctrl FS mount/umount (fix + cleanup)
- Consistently use "alloc" in cache_alloc_size()
- CAT test error handling tweaked
- Remove a spurious newline change from the CAT patch
- Small improvements to changelogs

Ilpo Järvinen (24):
selftests/resctrl: Add resctrl.h into build deps
selftests/resctrl: Check also too low values for CBM bits
selftests/resctrl: Move resctrl FS mount/umount to higher level
selftests/resctrl: Remove mum_resctrlfs
selftests/resctrl: Make span unsigned long everywhere
selftests/resctrl: Express span in bytes
selftests/resctrl: Remove duplicated preparation for span arg
selftests/resctrl: Don't use variable argument list for ->setup()
selftests/resctrl: Remove "malloc_and_init_memory" param from
run_fill_buf()
selftests/resctrl: Split run_fill_buf() to alloc, work, and dealloc
helpers
selftests/resctrl: Remove start_buf local variable from buffer alloc
func
selftests/resctrl: Don't pass test name to fill_buf
selftests/resctrl: Add flush_buffer() to fill_buf
selftests/resctrl: Remove test type checks from cat_val()
selftests/resctrl: Refactor get_cbm_mask()
selftests/resctrl: Create cache_alloc_size() helper
selftests/resctrl: Replace count_bits with count_consecutive_bits()
selftests/resctrl: Exclude shareable bits from schemata in CAT test
selftests/resctrl: Pass the real number of tests to show_cache_info()
selftests/resctrl: Move CAT/CMT test global vars to func they are used
selftests/resctrl: Read in less obvious order to defeat prefetch
optimizations
selftests/resctrl: Split measure_cache_vals() function
selftests/resctrl: Split show_cache_info() to test specific and
generic parts
selftests/resctrl: Rewrite Cache Allocation Technology (CAT) test

tools/testing/selftests/resctrl/Makefile | 2 +-
tools/testing/selftests/resctrl/cache.c | 154 ++++++------
tools/testing/selftests/resctrl/cat_test.c | 235 ++++++++----------
tools/testing/selftests/resctrl/cmt_test.c | 65 +++--
tools/testing/selftests/resctrl/fill_buf.c | 105 ++++----
tools/testing/selftests/resctrl/mba_test.c | 9 +-
tools/testing/selftests/resctrl/mbm_test.c | 17 +-
tools/testing/selftests/resctrl/resctrl.h | 32 +--
.../testing/selftests/resctrl/resctrl_tests.c | 82 ++++--
tools/testing/selftests/resctrl/resctrl_val.c | 9 +-
tools/testing/selftests/resctrl/resctrlfs.c | 187 ++++++++++----
11 files changed, 499 insertions(+), 398 deletions(-)

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2.30.2