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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>
This commit is contained in:
Oded Gabbay 2020-09-23 23:51:03 +03:00
parent 9e2e8fc7d6
commit 3c3aa5dbd6
1 changed files with 5 additions and 0 deletions
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5
drivers/misc/habanalabs/common/context.c
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@ -28,6 +28,8 @@ static void hl_ctx_fini(struct hl_ctx *ctx)
kfree(ctx->cs_pending); kfree(ctx->cs_pending);
if (ctx->asid != HL_KERNEL_ASID_ID) { 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 /* The engines are stopped as there is no executing CS, but the
* Coresight might be still working by accessing addresses * Coresight might be still working by accessing addresses
* related to the stopped engines. Hence stop it explicitly. * 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_vm_ctx_fini(ctx);
hl_asid_free(hdev, ctx->asid); hl_asid_free(hdev, ctx->asid);
} else { } else {
dev_dbg(hdev->dev, "closing kernel context\n");
hl_mmu_ctx_fini(ctx); 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"); dev_err(hdev->dev, "ctx_init failed\n");
goto err_cb_va_pool_fini; goto err_cb_va_pool_fini;
} }
dev_dbg(hdev->dev, "create user context %d\n", ctx->asid);
} }
return 0; return 0;