diff options
| author | Tomer Tayar <ttayar@habana.ai> | 2020-08-02 22:51:31 +0300 |
|---|---|---|
| committer | Oded Gabbay <ogabbay@kernel.org> | 2020-11-30 10:47:38 +0200 |
| commit | f07486745442f6118ede18e2b52ee7be69cde5a4 (patch) | |
| tree | 0ae8178439b52b7afa1cd8d29045412687af2d50 /drivers/misc/habanalabs/gaudi | |
| parent | 3e438b42a5fbf19e44c6c3e0481ed4b5672d8f42 (diff) | |
habanalabs: Modify the cs_cnt of a CB to be atomic
Modify the CS counter of a CB to be atomic, so no locking is required
when it is being modified or read.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Diffstat (limited to 'drivers/misc/habanalabs/gaudi')
| -rw-r--r-- | drivers/misc/habanalabs/gaudi/gaudi.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c index aac3c9c5a2e0..1f1926607c5e 100644 --- a/drivers/misc/habanalabs/gaudi/gaudi.c +++ b/drivers/misc/habanalabs/gaudi/gaudi.c @@ -838,7 +838,7 @@ static int _gaudi_init_tpc_mem(struct hl_device *hdev, job->id = 0; job->user_cb = cb; - job->user_cb->cs_cnt++; + atomic_inc(&job->user_cb->cs_cnt); job->user_cb_size = cb_size; job->hw_queue_id = GAUDI_QUEUE_ID_DMA_0_0; job->patched_cb = job->user_cb; @@ -861,7 +861,7 @@ free_job: hl_userptr_delete_list(hdev, &job->userptr_list); hl_debugfs_remove_job(hdev, job); kfree(job); - cb->cs_cnt--; + atomic_dec(&cb->cs_cnt); release_cb: hl_cb_put(cb); @@ -1248,7 +1248,7 @@ static int gaudi_collective_wait_create_job(struct hl_device *hdev, job->id = 0; job->cs = cs; job->user_cb = cb; - job->user_cb->cs_cnt++; + atomic_inc(&job->user_cb->cs_cnt); job->user_cb_size = cb_size; job->hw_queue_id = queue_id; @@ -5570,7 +5570,7 @@ static int gaudi_memset_device_memory(struct hl_device *hdev, u64 addr, job->id = 0; job->user_cb = cb; - job->user_cb->cs_cnt++; + atomic_inc(&job->user_cb->cs_cnt); job->user_cb_size = cb_size; job->hw_queue_id = GAUDI_QUEUE_ID_DMA_0_0; job->patched_cb = job->user_cb; @@ -5581,7 +5581,7 @@ static int gaudi_memset_device_memory(struct hl_device *hdev, u64 addr, rc = gaudi_send_job_on_qman0(hdev, job); hl_debugfs_remove_job(hdev, job); kfree(job); - cb->cs_cnt--; + atomic_dec(&cb->cs_cnt); /* Verify DMA is OK */ err_cause = RREG32(mmDMA0_CORE_ERR_CAUSE); |