Exercise the newly added functions.
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
---
drivers/dma-buf/st-dma-fence-chain.c | 48 ++++++++++++++++++++++++++++
1 file changed, 48 insertions(+)
diff --git a/drivers/dma-buf/st-dma-fence-chain.c b/drivers/dma-buf/st-dma-fence-chain.c
index 8ce1ea59d31b..855c129c6093 100644
--- a/drivers/dma-buf/st-dma-fence-chain.c
+++ b/drivers/dma-buf/st-dma-fence-chain.c
@@ -95,6 +95,53 @@ static int sanitycheck(void *arg)
return err;
}
+static int __alloc_free(void *arg)
+{
+ atomic_t *counter = arg;
+ int i, j;
+
+ for (i = 0; i < 1024; ++i) {
+ struct dma_fence_chain *chains[64];
+
+ for (j = 0; j < ARRAY_SIZE(chains); ++j)
+ chains[j] = dma_fence_chain_alloc();
+
+ for (j = 0; j < ARRAY_SIZE(chains); ++j)
+ dma_fence_chain_free(chains[j]);
+
+ atomic_add(ARRAY_SIZE(chains), counter);
+ }
+ return 0;
+}
+
+static int alloc_free(void *arg)
+{
+ struct task_struct *threads[8];
+ atomic_t counter = ATOMIC_INIT(0);
+ int i, err = 0;
+
+ for (i = 0; i < ARRAY_SIZE(threads); i++) {
+ threads[i] = kthread_run(__alloc_free, &counter, "dmabuf/%d",
+ i);
+ if (IS_ERR(threads[i])) {
+ err = PTR_ERR(threads[i]);
+ break;
+ }
+ }
+
+ while (i--) {
+ int ret;
+
+ ret = kthread_stop(threads[i]);
+ if (ret && !err)
+ err = ret;
+ }
+
+ pr_info("Completed %u cycles\n", atomic_read(&counter));
+
+ return err;
+}
+
struct fence_chains {
unsigned int chain_length;
struct dma_fence **fences;
@@ -677,6 +724,7 @@ int dma_fence_chain(void)
{
static const struct subtest tests[] = {
SUBTEST(sanitycheck),
+ SUBTEST(alloc_free),
SUBTEST(find_seqno),
SUBTEST(find_signaled),
SUBTEST(find_out_of_order),
--
2.25.1
