From: "Christian König" <ckoenig.leichtzumerken@gmail.com>
To: daniel@ffwll.ch, dri-devel@lists.freedesktop.org,
amd-gfx@lists.freedesktop.org
Subject: [PATCH 3/7] dma-buf: add dma_fence_chain_alloc/free self tests
Date: Thu, 10 Jun 2021 11:17:56 +0200 [thread overview]
Message-ID: <20210610091800.1833-4-christian.koenig@amd.com> (raw)
In-Reply-To: <20210610091800.1833-1-christian.koenig@amd.com>
Exercise the newly added functions.
Signed-off-by: Christian König <christian.koenig@amd.com>
---
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
next prev parent reply other threads:[~2021-06-10 9:18 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-10 9:17 Change how amdgpu stores fences in dma_resv objects Christian König
2021-06-10 9:17 ` [PATCH 1/7] dma-buf: some dma_fence_chain improvements Christian König
2021-06-11 7:49 ` Daniel Vetter
2021-06-10 9:17 ` [PATCH 2/7] dma-buf: add dma_fence_chain_alloc/free Christian König
2021-06-11 7:54 ` Daniel Vetter
2021-06-11 11:48 ` Christian König
2021-06-11 14:40 ` Daniel Vetter
2021-06-10 9:17 ` Christian König [this message]
2021-06-11 7:58 ` [PATCH 3/7] dma-buf: add dma_fence_chain_alloc/free self tests Daniel Vetter
2021-06-11 10:04 ` Christian König
2021-06-10 9:17 ` [PATCH 4/7] dma-buf: add dma_fence_chain_garbage_collect Christian König
2021-06-11 8:58 ` Daniel Vetter
2021-06-11 10:07 ` Christian König
2021-06-11 15:11 ` Daniel Vetter
2021-06-16 17:29 ` kernel test robot
2021-06-16 18:50 ` kernel test robot
2021-06-10 9:17 ` [PATCH 5/7] drm/syncobj: drop the manual garbage collection Christian König
2021-06-10 9:17 ` [PATCH 6/7] drm/amdgpu: unwrap fence chains in the explicit sync fence Christian König
2021-06-11 9:07 ` Daniel Vetter
2021-06-11 10:09 ` Christian König
2021-06-11 15:18 ` Daniel Vetter
2021-06-14 7:25 ` Christian König
2021-06-17 16:51 ` Daniel Vetter
2021-06-10 9:18 ` [PATCH 7/7] drm/amdgpu: rework dma_resv handling Christian König
2021-06-11 9:17 ` Daniel Vetter
2021-06-11 10:12 ` Christian König
2021-06-11 15:21 ` Daniel Vetter
2021-06-10 16:34 ` Change how amdgpu stores fences in dma_resv objects Michel Dänzer
2021-06-10 16:44 ` Christian König
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