From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C796BA94D for ; Mon, 19 Jun 2023 11:01:09 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4CA18C433C0; Mon, 19 Jun 2023 11:01:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1687172469; bh=4uQDjWVJF3zrgRzTtI5gZMWHpVJSDX6sGOJkrWD5Iwk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=zdlRCu+f9stDUk2DFaREaMk78gq7imiC3VWXYPZpBzUwUTWdtri2UuBZGQUKY8SgT iGhAcmopXW21GmGI1J0eonYf45ehAfSul4Pv1By21VdygA2lIjpcBOgh7AeplkP+Sm PJWwB3ZbyDAkDSCxRZwdnM0IvxPtbDyL49nebFl0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, beld zhang , Mario Limonciello , Mika Westerberg Subject: [PATCH 5.15 054/107] thunderbolt: Mask ring interrupt on Intel hardware as well Date: Mon, 19 Jun 2023 12:30:38 +0200 Message-ID: <20230619102144.080375694@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230619102141.541044823@linuxfoundation.org> References: <20230619102141.541044823@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Mika Westerberg commit 9f9666e65359d5047089aef97ac87c50f624ecb0 upstream. When resuming from system sleep states the driver issues following warning on Intel hardware: thunderbolt 0000:07:00.0: interrupt for TX ring 0 is already enabled The reason for this is that the commit in question did not mask the ring interrupt on Intel hardware leaving the interrupt active. Fix this by masking it also in Intel hardware. Reported-by: beld zhang Tested-by: beld zhang Closes: https://lore.kernel.org/linux-usb/ZHKW5NeabmfhgLbY@debian.me/ Fixes: c4af8e3fecd0 ("thunderbolt: Clear registers properly when auto clear isn't in use") Cc: stable@vger.kernel.org Reviewed-by: Mario Limonciello Signed-off-by: Mika Westerberg Signed-off-by: Greg Kroah-Hartman --- drivers/thunderbolt/nhi.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) --- a/drivers/thunderbolt/nhi.c +++ b/drivers/thunderbolt/nhi.c @@ -53,9 +53,14 @@ static int ring_interrupt_index(const st static void nhi_mask_interrupt(struct tb_nhi *nhi, int mask, int ring) { - if (nhi->quirks & QUIRK_AUTO_CLEAR_INT) - return; - iowrite32(mask, nhi->iobase + REG_RING_INTERRUPT_MASK_CLEAR_BASE + ring); + if (nhi->quirks & QUIRK_AUTO_CLEAR_INT) { + u32 val; + + val = ioread32(nhi->iobase + REG_RING_INTERRUPT_BASE + ring); + iowrite32(val & ~mask, nhi->iobase + REG_RING_INTERRUPT_BASE + ring); + } else { + iowrite32(mask, nhi->iobase + REG_RING_INTERRUPT_MASK_CLEAR_BASE + ring); + } } static void nhi_clear_interrupt(struct tb_nhi *nhi, int ring)