Messages in this thread Patch in this message | | | From | Oded Gabbay <> | Subject | [PATCH 4/4] habanalabs: add notice of device not idle | Date | Thu, 24 Sep 2020 10:02:59 +0300 |
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The device should be idle after a context is closed. If not, print a notice.
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> --- drivers/misc/habanalabs/common/context.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/misc/habanalabs/common/context.c b/drivers/misc/habanalabs/common/context.c index bd03ef074eed..7a59dd7c6450 100644 --- a/drivers/misc/habanalabs/common/context.c +++ b/drivers/misc/habanalabs/common/context.c @@ -12,6 +12,7 @@ static void hl_ctx_fini(struct hl_ctx *ctx) { struct hl_device *hdev = ctx->hdev; + u64 idle_mask = 0; int i; /* @@ -42,6 +43,13 @@ static void hl_ctx_fini(struct hl_ctx *ctx) hl_cb_va_pool_fini(ctx); hl_vm_ctx_fini(ctx); hl_asid_free(hdev, ctx->asid); + + if ((!hdev->pldm) && (hdev->pdev) && + (!hdev->asic_funcs->is_device_idle(hdev, + &idle_mask, NULL))) + dev_notice(hdev->dev, + "device not idle after user context is closed (0x%llx)\n", + idle_mask); } else { dev_dbg(hdev->dev, "closing kernel context\n"); hl_mmu_ctx_fini(ctx); -- 2.17.1
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