From 06deb86a748a1667d906af996775603f2bc34d00 Mon Sep 17 00:00:00 2001 From: Tomer Tayar Date: Mon, 1 Jul 2019 13:59:45 +0000 Subject: habanalabs: Add debugfs node for engines status Command submissions sent to the device are composed of command buffers which are targeted to different device engines, like DMA and compute entities. When a command submission gets stuck, knowing in which engine the stuck is, is crucial for debugging. This patch adds a debugfs node that exports this information, by displaying the engines' various registers that assemble their idle/busy status. The information retrieval is based on the is_device_idle ASIC function. The printout in this function, of the first detected busy engine, is removed because it becomes redundant in the presence of the more elaborated info of the new debugfs node. Signed-off-by: Tomer Tayar Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay --- drivers/misc/habanalabs/habanalabs_ioctl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/misc/habanalabs/habanalabs_ioctl.c') diff --git a/drivers/misc/habanalabs/habanalabs_ioctl.c b/drivers/misc/habanalabs/habanalabs_ioctl.c index c641c7eb6f7c..b04585af27ad 100644 --- a/drivers/misc/habanalabs/habanalabs_ioctl.c +++ b/drivers/misc/habanalabs/habanalabs_ioctl.c @@ -119,7 +119,7 @@ static int hw_idle(struct hl_device *hdev, struct hl_info_args *args) if ((!max_size) || (!out)) return -EINVAL; - hw_idle.is_idle = hdev->asic_funcs->is_device_idle(hdev, NULL, 0); + hw_idle.is_idle = hdev->asic_funcs->is_device_idle(hdev, NULL); return copy_to_user(out, &hw_idle, min((size_t) max_size, sizeof(hw_idle))) ? -EFAULT : 0; -- cgit v1.2.3