diff options
Diffstat (limited to 'drivers/misc/habanalabs/gaudi/gaudi.c')
| -rw-r--r-- | drivers/misc/habanalabs/gaudi/gaudi.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c index f273b792bc5d..bd711c8d3874 100644 --- a/drivers/misc/habanalabs/gaudi/gaudi.c +++ b/drivers/misc/habanalabs/gaudi/gaudi.c @@ -5729,18 +5729,26 @@ release_cb: static int gaudi_schedule_register_memset(struct hl_device *hdev, u32 hw_queue_id, u64 reg_base, u32 num_regs, u32 val) { - struct hl_ctx *ctx = hdev->compute_ctx; + struct hl_ctx *ctx; struct hl_pending_cb *pending_cb; struct packet_msg_long *pkt; u32 cb_size, ctl; struct hl_cb *cb; - int i; + int i, rc; + + mutex_lock(&hdev->fpriv_list_lock); + ctx = hdev->compute_ctx; /* If no compute context available or context is going down * memset registers directly */ - if (!ctx || kref_read(&ctx->refcount) == 0) - return gaudi_memset_registers(hdev, reg_base, num_regs, val); + if (!ctx || kref_read(&ctx->refcount) == 0) { + rc = gaudi_memset_registers(hdev, reg_base, num_regs, val); + mutex_unlock(&hdev->fpriv_list_lock); + return rc; + } + + mutex_unlock(&hdev->fpriv_list_lock); cb_size = (sizeof(*pkt) * num_regs) + sizeof(struct packet_msg_prot) * 2; |