Currently, flushing is only done after allocating and filling the buffer and cannot be controlled by the test cases.
The new CAT test will want to control flushing within a test so introduce flush_buffer() for that purpose.
Signed-off-by: Ilpo Järvinen ilpo.jarvinen@linux.intel.com --- tools/testing/selftests/resctrl/fill_buf.c | 5 +++++ tools/testing/selftests/resctrl/resctrl.h | 1 + 2 files changed, 6 insertions(+)
diff --git a/tools/testing/selftests/resctrl/fill_buf.c b/tools/testing/selftests/resctrl/fill_buf.c index f5ca0c573891..316800715386 100644 --- a/tools/testing/selftests/resctrl/fill_buf.c +++ b/tools/testing/selftests/resctrl/fill_buf.c @@ -66,6 +66,11 @@ static void mem_flush(void *p, size_t s) sb(); }
+void flush_buffer(unsigned long long span) +{ + mem_flush(startptr, span); +} + static void *malloc_and_init_memory(size_t s) { void *p = NULL; diff --git a/tools/testing/selftests/resctrl/resctrl.h b/tools/testing/selftests/resctrl/resctrl.h index 968ac2a321ff..594e72f04b63 100644 --- a/tools/testing/selftests/resctrl/resctrl.h +++ b/tools/testing/selftests/resctrl/resctrl.h @@ -99,6 +99,7 @@ int perf_event_open(struct perf_event_attr *hw_event, pid_t pid, int cpu, int group_fd, unsigned long flags); void free_buffer(void); int alloc_buffer(unsigned long long buf_size, int memflush); +void flush_buffer(unsigned long long span); int use_buffer(unsigned long long buf_size, int op, bool once); int run_fill_buf(unsigned long span, int memflush, int op, bool once); int resctrl_val(char **benchmark_cmd, struct resctrl_val_param *param);