habanalabs: add debug messages for opening/closing context

During debugging of error we sometimes need to know whether the error
happened when a user context was open. Add debug prints when opening and
closing user contexts.

Reviewed-by: Tomer Tayar <ttayar@habana.ai>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>

diff --git a/drivers/misc/habanalabs/common/context.c b/drivers/misc/habanalabs/common/context.c
index df8171a2226cd9d190c7f95894b76afe74a7b70a..bd03ef074eed1a31f7b7ca2bb134f48e9c3f105b 100644 (file)
--- a/drivers/misc/habanalabs/common/context.c
+++ b/drivers/misc/habanalabs/common/context.c
@@ -28,6 +28,8 @@ static void hl_ctx_fini(struct hl_ctx *ctx)
        kfree(ctx->cs_pending);
 
        if (ctx->asid != HL_KERNEL_ASID_ID) {
+               dev_dbg(hdev->dev, "closing user context %d\n", ctx->asid);
+
                /* The engines are stopped as there is no executing CS, but the
                 * Coresight might be still working by accessing addresses
                 * related to the stopped engines. Hence stop it explicitly.
@@ -41,6 +43,7 @@ static void hl_ctx_fini(struct hl_ctx *ctx)
                hl_vm_ctx_fini(ctx);
                hl_asid_free(hdev, ctx->asid);
        } else {
+               dev_dbg(hdev->dev, "closing kernel context\n");
                hl_mmu_ctx_fini(ctx);
        }
 }
@@ -168,6 +171,8 @@ int hl_ctx_init(struct hl_device *hdev, struct hl_ctx *ctx, bool is_kernel_ctx)
                        dev_err(hdev->dev, "ctx_init failed\n");
                        goto err_cb_va_pool_fini;
                }
+
+               dev_dbg(hdev->dev, "create user context %d\n", ctx->asid);
        }
 
        return 0;