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@xxxxxxxxxxxxxxx>
---
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 677e1a113629..7e0d3a1ea555 100644
--- a/tools/testing/selftests/resctrl/fill_buf.c
+++ b/tools/testing/selftests/resctrl/fill_buf.c
@@ -58,6 +58,11 @@ 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 8748121345f3..ba36eb5fdf0d 100644
--- a/tools/testing/selftests/resctrl/resctrl.h
+++ b/tools/testing/selftests/resctrl/resctrl.h
@@ -97,6 +97,7 @@ 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);
--
2.30.2
