From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6CFC9C3A5A7 for ; Thu, 8 Dec 2022 15:15:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230255AbiLHPPC (ORCPT ); Thu, 8 Dec 2022 10:15:02 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58598 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230129AbiLHPOX (ORCPT ); Thu, 8 Dec 2022 10:14:23 -0500 Received: from sin.source.kernel.org (sin.source.kernel.org [145.40.73.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F125BABA29 for ; Thu, 8 Dec 2022 07:14:15 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id 60E1CCE24B1 for ; Thu, 8 Dec 2022 15:14:14 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B6C52C433D6; Thu, 8 Dec 2022 15:14:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1670512452; bh=0Ny7Hg3x78P01JGdM08WcN1k/djTpuFQmBSNIxo7jgA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FbNUGvwrJTI+vrijnj+Mmqwu6/lP2LPmmuDiDstCMuBiW8GLyjvVDBupB4CifGAZL EDKG4YLGg5zUwQuDRoKmOJJVd1UyzNkUMamWHIL2oNbFeLXZ9D7vQQr735Mxh10P6a OaFQY643RxypX823iEmg3mo1QAV8jgN0J3nZhTT5f/o6Yw4OfaEpvmMNCzGzJLIqWC 4vyZ+Wv4822ueSlRCCGMR7lBnhnwfwh4rbqu3kIimslsgNZqg/stwY8zq9Wv6NdOQT bzc9i5JNeA5sTCeeQjcFue84NBHvbZZGTGuismYcA8/VDaQ0BPGB46ub2hPPbOvRUm lJ1NzcmoNvUSw== From: Oded Gabbay To: linux-kernel@vger.kernel.org Cc: Tamir Gilad-Raz Subject: [PATCH 13/26] habanalabs: adjacent timestamps should be more accurate Date: Thu, 8 Dec 2022 17:13:37 +0200 Message-Id: <20221208151350.1833823-13-ogabbay@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221208151350.1833823-1-ogabbay@kernel.org> References: <20221208151350.1833823-1-ogabbay@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Tamir Gilad-Raz timestamp events that expire on the same interrupt will get the same timestamp value Signed-off-by: Tamir Gilad-Raz Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay --- drivers/misc/habanalabs/common/irq.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/misc/habanalabs/common/irq.c b/drivers/misc/habanalabs/common/irq.c index 94d537fd4fde..8bbcc223df91 100644 --- a/drivers/misc/habanalabs/common/irq.c +++ b/drivers/misc/habanalabs/common/irq.c @@ -228,7 +228,7 @@ static void hl_ts_free_objects(struct work_struct *work) * list to a dedicated workqueue to do the actual put. */ static int handle_registration_node(struct hl_device *hdev, struct hl_user_pending_interrupt *pend, - struct list_head **free_list) + struct list_head **free_list, ktime_t now) { struct timestamp_reg_free_node *free_node; u64 timestamp; @@ -246,7 +246,7 @@ static int handle_registration_node(struct hl_device *hdev, struct hl_user_pendi if (!free_node) return -ENOMEM; - timestamp = ktime_get_ns(); + timestamp = ktime_to_ns(now); *pend->ts_reg_info.timestamp_kernel_addr = timestamp; @@ -298,7 +298,7 @@ static void handle_user_interrupt(struct hl_device *hdev, struct hl_user_interru if (pend->ts_reg_info.buf) { if (!reg_node_handle_fail) { rc = handle_registration_node(hdev, pend, - &ts_reg_free_list_head); + &ts_reg_free_list_head, now); if (rc) reg_node_handle_fail = true; } -- 2.25.1