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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 9ABB4C2BB86 for ; Sat, 11 Apr 2020 23:32:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 72FE5206E9 for ; Sat, 11 Apr 2020 23:32:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1586647952; bh=TzXMiycao62ng2isGOeqGHM7zN2SfNMDzMdookcZguE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=jUtZeI8VDa9AGz1znF1mzmfPwSZ9wUYpjIxwWVPPjda/vuBXGGoe6P+66UlA02doL 9Brf2XxM8fBI+XQVl+MFobLorVAhgOuXyRrDfl4tRbyWbl820q3elHB03e7f0enpZB YfGlC6VgzJKJU0QU+1n0G3cjnhV0zHZmZ2ar7FKU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729717AbgDKXcb (ORCPT ); Sat, 11 Apr 2020 19:32:31 -0400 Received: from mail.kernel.org ([198.145.29.99]:48152 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728955AbgDKXKE (ORCPT ); Sat, 11 Apr 2020 19:10:04 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 315362166E; Sat, 11 Apr 2020 23:10:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1586646604; bh=TzXMiycao62ng2isGOeqGHM7zN2SfNMDzMdookcZguE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fxxz16EuVfFovFFeB1sXaejF1mbwqZn6vqlMN7LvkAO6guInBIEMxf6pwRukg+7Dc wxjXjdzIngucPVGywdD1v/hgsPHuR+/PippteXKb/f20xBZc1YmbU1QXHYTPNCQ6Tk ctKgDd6xXPTbGhc1hswkwfw7GLeLgeG1TESuuMp0= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Arindam Nath , Jon Mason , Sasha Levin , linux-ntb@googlegroups.com Subject: [PATCH AUTOSEL 5.4 017/108] NTB: set peer_sta within event handler itself Date: Sat, 11 Apr 2020 19:08:12 -0400 Message-Id: <20200411230943.24951-17-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200411230943.24951-1-sashal@kernel.org> References: <20200411230943.24951-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Arindam Nath [ Upstream commit 2465b87ce36ea2dbd97e5fb58a0efd284c9f687e ] amd_ack_smu() should only set the corresponding bits into SMUACK register. Setting the bitmask of peer_sta should be done within the event handler. They are two different things, and so should be handled differently and at different places. Signed-off-by: Arindam Nath Signed-off-by: Jon Mason Signed-off-by: Sasha Levin --- drivers/ntb/hw/amd/ntb_hw_amd.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/ntb/hw/amd/ntb_hw_amd.c b/drivers/ntb/hw/amd/ntb_hw_amd.c index 156c2a18a2394..ecbc283f094b9 100644 --- a/drivers/ntb/hw/amd/ntb_hw_amd.c +++ b/drivers/ntb/hw/amd/ntb_hw_amd.c @@ -493,8 +493,6 @@ static void amd_ack_smu(struct amd_ntb_dev *ndev, u32 bit) reg = readl(mmio + AMD_SMUACK_OFFSET); reg |= bit; writel(reg, mmio + AMD_SMUACK_OFFSET); - - ndev->peer_sta |= bit; } static void amd_handle_event(struct amd_ntb_dev *ndev, int vec) @@ -512,9 +510,11 @@ static void amd_handle_event(struct amd_ntb_dev *ndev, int vec) status &= AMD_EVENT_INTMASK; switch (status) { case AMD_PEER_FLUSH_EVENT: + ndev->peer_sta |= AMD_PEER_FLUSH_EVENT; dev_info(dev, "Flush is done.\n"); break; case AMD_PEER_RESET_EVENT: + ndev->peer_sta |= AMD_PEER_RESET_EVENT; amd_ack_smu(ndev, AMD_PEER_RESET_EVENT); /* link down first */ @@ -527,6 +527,7 @@ static void amd_handle_event(struct amd_ntb_dev *ndev, int vec) case AMD_PEER_PMETO_EVENT: case AMD_LINK_UP_EVENT: case AMD_LINK_DOWN_EVENT: + ndev->peer_sta |= status; amd_ack_smu(ndev, status); /* link down */ @@ -540,6 +541,7 @@ static void amd_handle_event(struct amd_ntb_dev *ndev, int vec) if (status & 0x1) dev_info(dev, "Wakeup is done.\n"); + ndev->peer_sta |= AMD_PEER_D0_EVENT; amd_ack_smu(ndev, AMD_PEER_D0_EVENT); /* start a timer to poll link status */ -- 2.20.1