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 EBF3B359DE4; Mon, 5 May 2025 22:42:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746484970; cv=none; b=p/VDLkXbD9Z1+vJ49Y3K08rEG7/4rjLE2ApBXh+E2WdC6Rc293KCeu8MgphgUVX3Qzoc5bPoZcgGj/O3ky2AIA7iW5osZMCHcU5miRH7I5/6MQE3rAsbJ50OFSbGfLkR8/tUZG6hB3nuWBB88bFTNH1UTYyoMLdX+qGaQ1CrTHo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746484970; c=relaxed/simple; bh=WjO+egmhL/vXMYc7GhB8oOhdYaKPrwDEGtWK5+ykUtk=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=NtIiEiTJ5VUHm5k1WiZU/r0j6SXEEV6M2Gbztq39LpANRZ8soN7Hsxra0XQN2quvjDJ0jamSbtemqCMUqAa/LPaQMe0n/LcyuWLj3J+978wYZmi9ft6F9WrEUotHjfLlrPGfgIOsSX+wBlTegG3rz/df3nMddgI1wgzL68A6jxM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=J8aZJDJv; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="J8aZJDJv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B5FC1C4CEE4; Mon, 5 May 2025 22:42:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1746484969; bh=WjO+egmhL/vXMYc7GhB8oOhdYaKPrwDEGtWK5+ykUtk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=J8aZJDJvu2DZQQt0JDgA7zN8kSJLwbkd+dSMcQBsEq3/QVF9lNiPqrzWv3iknBRT7 iAeoeNIZVccs/B3D4h8zE+RKBMFZhXR6v14VmqOSu3Znnbqd5/XvI5rBqQnBa6mV+h TJL8uvq8ZZ79nmSfHRCorL2UYjloerUJJVpavVytbjTAmQbYhHnjaJqkaWrV5ZP6hB 23uyA+VzPeruznH7Qbbw8K/ZiVznfi5GwSlDajmY8WSMQtw6elF3tIXICJcXPQH/u0 ieAOW4/gjSPMzpthkqzt62lOvxV4DIr0712LMbbtNCbH47aU/hbqNjmuPCxtI4Lk4w JvT3Rrx+M/O6g== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Frank Li , Bjorn Helgaas , Sasha Levin , jingoohan1@gmail.com, manivannan.sadhasivam@linaro.org, lpieralisi@kernel.org, kw@linux.com, linux-pci@vger.kernel.org Subject: [PATCH AUTOSEL 6.12 101/486] PCI: dwc: Use resource start as ioremap() input in dw_pcie_pme_turn_off() Date: Mon, 5 May 2025 18:32:57 -0400 Message-Id: <20250505223922.2682012-101-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250505223922.2682012-1-sashal@kernel.org> References: <20250505223922.2682012-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.12.26 Content-Transfer-Encoding: 8bit From: Frank Li [ Upstream commit 8f4a489b370e6612700aa16b9e4373b2d85d7503 ] The msg_res region translates writes into PCIe Message TLPs. Previously we mapped this region using atu.cpu_addr, the input address programmed into the ATU. "cpu_addr" is a misnomer because when a bus fabric translates addresses between the CPU and the ATU, the ATU input address is different from the CPU address. A future patch will rename "cpu_addr" and correct the value to be the ATU input address instead of the CPU physical address. Map the msg_res region before writing to it using the msg_res resource start, a CPU physical address. Link: https://lore.kernel.org/r/20250315201548.858189-2-helgaas@kernel.org Signed-off-by: Frank Li Signed-off-by: Bjorn Helgaas Signed-off-by: Sasha Levin --- drivers/pci/controller/dwc/pcie-designware-host.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c index 120e2aca5164a..d428457d9c432 100644 --- a/drivers/pci/controller/dwc/pcie-designware-host.c +++ b/drivers/pci/controller/dwc/pcie-designware-host.c @@ -902,7 +902,7 @@ static int dw_pcie_pme_turn_off(struct dw_pcie *pci) if (ret) return ret; - mem = ioremap(atu.cpu_addr, pci->region_align); + mem = ioremap(pci->pp.msg_res->start, pci->region_align); if (!mem) return -ENOMEM; -- 2.39.5