From patchwork Fri Feb 7 10:31:01 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans Zhang <18255117159@163.com> X-Patchwork-Id: 13964755 Received: from m16.mail.163.com (m16.mail.163.com [117.135.210.2]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 0157753A7; Fri, 7 Feb 2025 10:33:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=117.135.210.2 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738924386; cv=none; b=JW2M/dwXxge/fFOd6GSoXI31HCUSNpeGBHBPytAmM8PYcT+fuEG5mJLlCCbO4cIA9+n8cp8XWe39W7Yta/BgxTY16oeF6D8yNRGoeGx0EprtGwRrXHDo+2mi2GnHD2gk2G9O8KR84XhMhdgNaDJxA0MaeQH1bQm3Io51+giIDOA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738924386; c=relaxed/simple; bh=WTDr/G1skVjWh8EnYLcNXt+LRgyLBrCm/eeyjKJlj/4=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=aCu6+JpGergC9Ssif3ghH5tCqVBmroNJ7jRmHFYRntvPaJrfiSg/f9kdQo3mCEndqyASwtvXBgr6Hj1kSOxIk2jz2n10Lo7NozrxXCAQ+EbBFE7WoFNLt1B08MxUpSHk0A9vPF6WAgeHnZS7wAyGUbJjmV2U8x6x8mVp6ZVhJnk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=mqmKUKFO; arc=none smtp.client-ip=117.135.210.2 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="mqmKUKFO" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:Subject:Date:Message-Id:MIME-Version; bh=eGngS niGDrpZdwRnlYe6zvDuqB1QaaruKTmGkVzWykQ=; b=mqmKUKFOh3Qufl1/u/9Cb 2VuNFBU2ymjULKWifLfcBMdH+Eg6oqU5RPxVlSNPqgp532PpoBZq6H2AfUlx2a17 go1ld8S14sq21CvO+fWg8e7v5nlDxFKBuiXV57x4145sVYdC8glJD4m2oDsW/UaZ 2Mt4RLqMQKEBk1zUxDE2wI= Received: from localhost.localdomain (unknown []) by gzsmtp4 (Coremail) with SMTP id PygvCgB3gALo4KVn4NbiBg--.39589S2; Fri, 07 Feb 2025 18:31:06 +0800 (CST) From: Hans Zhang <18255117159@163.com> To: lpieralisi@kernel.org Cc: kw@linux.com, manivannan.sadhasivam@linaro.org, robh@kernel.org, bhelgaas@google.com, bwawrzyn@cisco.com, cassel@kernel.org, wojciech.jasko-EXT@continental-corporation.com, a-verma1@ti.com, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, rockswang7@gmail.com, "hans.zhang" Subject: [PATCH] PCI: cadence: Fix sending message with data or without data Date: Fri, 7 Feb 2025 18:31:01 +0800 Message-Id: <20250207103101.31287-1-18255117159@163.com> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: PygvCgB3gALo4KVn4NbiBg--.39589S2 X-Coremail-Antispam: 1Uf129KBjvJXoWxJr13Cw1fJw45CF4rtw48tFb_yoW8CF1xpF yUG34Syw1xJrWavan5Z3WDXF13JFnayF9rJw4q934fuF17u34UGr12kFyrGFW5GrWvqr17 uw1DtF9rGF4fA3JanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x07jIzuJUUUUU= X-CM-SenderInfo: rpryjkyvrrlimvzbiqqrwthudrp/1tbiDxvso2el3j8yPQAAs3 From: "hans.zhang" View from cdns document cdn_pcie_gen4_hpa_axi_ips_ug_v1.04.pdf. In section 9.1.7.1 AXI Subordinate to PCIe Address Translation Registers below: axi_s_awaddr bits 16 is 1 for MSG with data and 0 for MSG without data. Signed-off-by: hans.zhang --- drivers/pci/controller/cadence/pcie-cadence-ep.c | 3 +-- drivers/pci/controller/cadence/pcie-cadence.h | 2 +- 2 files changed, 2 insertions(+), 3 deletions(-) base-commit: bb066fe812d6fb3a9d01c073d9f1e2fd5a63403b diff --git a/drivers/pci/controller/cadence/pcie-cadence-ep.c b/drivers/pci/controller/cadence/pcie-cadence-ep.c index e0cc4560dfde..0bf4cde34f51 100644 --- a/drivers/pci/controller/cadence/pcie-cadence-ep.c +++ b/drivers/pci/controller/cadence/pcie-cadence-ep.c @@ -352,8 +352,7 @@ static void cdns_pcie_ep_assert_intx(struct cdns_pcie_ep *ep, u8 fn, u8 intx, spin_unlock_irqrestore(&ep->lock, flags); offset = CDNS_PCIE_NORMAL_MSG_ROUTING(MSG_ROUTING_LOCAL) | - CDNS_PCIE_NORMAL_MSG_CODE(msg_code) | - CDNS_PCIE_MSG_NO_DATA; + CDNS_PCIE_NORMAL_MSG_CODE(msg_code); writel(0, ep->irq_cpu_addr + offset); } diff --git a/drivers/pci/controller/cadence/pcie-cadence.h b/drivers/pci/controller/cadence/pcie-cadence.h index f5eeff834ec1..39ee9945c903 100644 --- a/drivers/pci/controller/cadence/pcie-cadence.h +++ b/drivers/pci/controller/cadence/pcie-cadence.h @@ -246,7 +246,7 @@ struct cdns_pcie_rp_ib_bar { #define CDNS_PCIE_NORMAL_MSG_CODE_MASK GENMASK(15, 8) #define CDNS_PCIE_NORMAL_MSG_CODE(code) \ (((code) << 8) & CDNS_PCIE_NORMAL_MSG_CODE_MASK) -#define CDNS_PCIE_MSG_NO_DATA BIT(16) +#define CDNS_PCIE_MSG_DATA BIT(16) struct cdns_pcie;