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 X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 14BD1C433E0 for ; Wed, 24 Jun 2020 08:39:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DAA1220899 for ; Wed, 24 Jun 2020 08:39:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="m66E90HB" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389508AbgFXIje (ORCPT ); Wed, 24 Jun 2020 04:39:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53028 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388276AbgFXIjd (ORCPT ); Wed, 24 Jun 2020 04:39:33 -0400 Received: from mail-wr1-x443.google.com (mail-wr1-x443.google.com [IPv6:2a00:1450:4864:20::443]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F073FC061573 for ; Wed, 24 Jun 2020 01:39:32 -0700 (PDT) Received: by mail-wr1-x443.google.com with SMTP id h15so1397878wrq.8 for ; Wed, 24 Jun 2020 01:39:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=kyuzSJ+zSyOew8Gu2fEZImboOCEZH6hUeCFJWJHgt7E=; b=m66E90HBKSxS0u5rU8kdHg9Z9vc9ul9wMkD31XW+AxI1WCLoTPh1ysXeRM5tQ+dN// Kikmg9HnnpMYfikaUeVlW3jc4UZa2JWROZ7Kbqh7n2txJTyONU3ZXezZsGvavGuILGQB 4SGOOF4juD9mHCI+wGW8lvu2+sDnOyE4We+qw/F8P6mGiMJyfOeN4kOvpAHrBXYvRVIu HKvECidd29eqQeTvd+CuxkRzC/3heT7NRjmoCarKgi6ZaSK4dKUIMMr6cDixNo0mdYdq V1UI5uUkEmzSOnVKGkWgQYqo9qET4ShoOfiCH5MyJrPKHxpnVehmTUAkKe2MD+RwLyc4 RdPw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=kyuzSJ+zSyOew8Gu2fEZImboOCEZH6hUeCFJWJHgt7E=; b=oP5HDo4w/C3PMeq8bkvf9kOdR/HAv5bchxR5m1T9dLwyHHDuWKK7X8JRzf5cj009am MQ/9QaNAUDtHj3WKtaMhiU5v33Kd7vKOOTkZrW/XuUWs6h8D7lN6n9EkKPM/6Kx56im3 kePx7uFhdZh+TCm2V10Wvr1a9RhR3xqEx9+2ykVJ3htHkpPoG/ETyrAOqdMt6maPQUEy ABnrTCwDUX0tUkxU2axidloE96hYo6oFRLhQo25wLhryoDAge8av8on8AfNAuQHc9cWA b7giKZ9IOHM4nCR2mbrJ4U7/qyTTYBPx7zUsnSZIrurV1z7HuUXdl6x2tWQJ95znb5gj TRDg== X-Gm-Message-State: AOAM531RMBHE5b5NQGrnTEvMBg9MW3iIii9gumQtZeRwvbGyBXBMNgKv HnBRl85B9f74SeaRxGDBWAOUhbNk X-Google-Smtp-Source: ABdhPJxxwle8hBJ+V9kED+fnL5hLN5Ng/Yl2wbebhZLTI9Uf6pUoJvGlK7KMgzEuqDm1FDtXVXdenA== X-Received: by 2002:adf:e901:: with SMTP id f1mr22636685wrm.80.1592987971218; Wed, 24 Jun 2020 01:39:31 -0700 (PDT) Received: from ogabbay-VM.habana-labs.com ([213.57.90.10]) by smtp.gmail.com with ESMTPSA id e5sm24486544wrs.33.2020.06.24.01.39.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 24 Jun 2020 01:39:30 -0700 (PDT) From: Oded Gabbay To: linux-kernel@vger.kernel.org, SW_Drivers@habana.ai Cc: gregkh@linuxfoundation.org, Omer Shpigelman Subject: [PATCH] habanalabs: increase h/w timer when checking idle Date: Wed, 24 Jun 2020 12:45:34 +0300 Message-Id: <20200624094534.3549-1-oded.gabbay@gmail.com> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Omer Shpigelman In GAUDI the current timer value for the hardware to check if it is in IDLE state is too low. As a result, there are occasions where the H/W wrongly reports it is not IDLE. The driver checks that before submitting work on behalf of the driver during initialization, so a false report might cause the driver to fail during device initialization. Signed-off-by: Omer Shpigelman Signed-off-by: Oded Gabbay --- drivers/misc/habanalabs/gaudi/gaudi.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c index 69317d2ebdfa..834470d10b46 100644 --- a/drivers/misc/habanalabs/gaudi/gaudi.c +++ b/drivers/misc/habanalabs/gaudi/gaudi.c @@ -1893,6 +1893,8 @@ static void gaudi_init_pci_dma_qman(struct hl_device *hdev, int dma_id, WREG32(mmDMA0_QM_CP_MSG_BASE3_ADDR_LO_0 + q_off, so_base_ws_lo); WREG32(mmDMA0_QM_CP_MSG_BASE3_ADDR_HI_0 + q_off, so_base_ws_hi); + WREG32(mmDMA0_QM_CP_BARRIER_CFG_0 + q_off, 0x100); + /* The following configuration is needed only once per QMAN */ if (qman_id == 0) { /* Configure RAZWI IRQ */ -- 2.17.1