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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AC51AC4452D for ; Mon, 20 Jul 2026 15:08:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=VZ4Zx63l1gjgonvad4aKqaCKey7aEhu77AwHd96GYgU=; b=WpTafjMne6j/4N Bmis5oBsj66t4A8ilgJH6DouJXtImZwAC9/XEeoc4jX+334As9h4dq5jN/kSaK6QtGltoyYOelLsv 38t1NVl2iCL3aRp6BDKDQYk/oM8R8wPfuFeS8spAXGOfVp77gU0ahS9IsBz5WToNg3FXofoDwlSE0 74DdJpVuFWray94nJUhaWxJV6yMkoK4Si4tVjrko1qpu9KCAbL9Y8M0gaS6Sw9ABNvGB6+bPQODUX cPRde3hkWKHZmZl7RmF7g5J13zwYZW5x8AqtVRxvYus+isheEZO7M5AMz5rKjGe9BvieGwJPDr4pW S/+kdH2fFOl6W95zMxWA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wlpbj-000000076Y3-11nb; Mon, 20 Jul 2026 15:08:39 +0000 Received: from m16.mail.163.com ([117.135.210.5]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wlpbT-000000075bI-2S5A; Mon, 20 Jul 2026 15:08:25 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=VX L2XKRY5F3qPW2VboJTa9SPw1RX8rEnzJV3c1g8W44=; b=PL56MJC6Mw2Dm3beJw EGXf2JsTShEbMBOlljS+EgYO6qacNN2UjIkc8WYsI3Z3k7cA6sDekfjYsxzQ//WC ct1DT3oLvPkTGbHh3jinH59RtwXi3SySdmeiigJq4uG8QntqeP+JmCy4vww5lACu u6uUmyYQXJwiJIDj086urjZ4o= Received: from zhb.. (unknown []) by gzga-smtp-mtada-g1-3 (Coremail) with SMTP id _____wDX5ybVOV5q0OGYJQ--.29751S2; Mon, 20 Jul 2026 23:08:06 +0800 (CST) From: Hans Zhang <18255117159@163.com> To: bhelgaas@google.com, lpieralisi@kernel.org, kwilczynski@kernel.org, mani@kernel.org, jingoohan1@gmail.com Cc: imx@lists.linux.dev, linuxppc-dev@lists.ozlabs.org, linux-amlogic@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-arm-msm@vger.kernel.org, sophgo@lists.linux.dev, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, linux-tegra@vger.kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Hans Zhang <18255117159@163.com> Subject: [PATCH v3 16/16] PCI: dwc: ultrarisc: Use cached PCIe capability offset Date: Mon, 20 Jul 2026 23:06:19 +0800 Message-Id: <20260720150619.24733-17-18255117159@163.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260720150619.24733-1-18255117159@163.com> References: <20260720150619.24733-1-18255117159@163.com> MIME-Version: 1.0 X-CM-TRANSID: _____wDX5ybVOV5q0OGYJQ--.29751S2 X-Coremail-Antispam: 1Uf129KBjvJXoW7ZFy7CF43CF1xGry8JFy7KFg_yoW8Grykpa y3WryjyF1Dtr4YvFs2v3WDXF13tFnxAr9xJanrGrnIvF1akrWUJ390k34rtFn7GFWUKryY kr1YyFy5Ga4rtwUanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x0pi0tCwUUUUU= X-Originating-IP: [240e:b8f:91b3:d000:f138:f837:e143:4264] X-CM-SenderInfo: rpryjkyvrrlimvzbiqqrwthudrp/xtbCxBa1WWpeOdYHFAAA32 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260720_080824_236718_539ED960 X-CRM114-Status: UNSURE ( 9.73 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org Inside .init we call dw_pcie_get_pcie_cap() to obtain the offset, because the core has not yet cached it. Hardware is already enabled by the driver before this point. Signed-off-by: Hans Zhang <18255117159@163.com> --- In pcie-ultrarisc, the call chain is: static const struct dw_pcie_host_ops ultrarisc_pcie_host_ops = { .init = ultrarisc_pcie_host_init, }; ultrarisc_pcie_host_init() -> dw_pcie_find_capability() --- drivers/pci/controller/dwc/pcie-ultrarisc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/controller/dwc/pcie-ultrarisc.c b/drivers/pci/controller/dwc/pcie-ultrarisc.c index 6ee661ceff67..3f6e3ab0aa69 100644 --- a/drivers/pci/controller/dwc/pcie-ultrarisc.c +++ b/drivers/pci/controller/dwc/pcie-ultrarisc.c @@ -49,7 +49,7 @@ static int ultrarisc_pcie_host_init(struct dw_pcie_rp *pp) FIELD_MODIFY(PORT_FLT_SF_MASK, &val, PORT_FLT_SF_VAL_64); dw_pcie_writel_dbi(pci, PCIE_TIMER_CTRL_MAX_FUNC_NUM, val); - cap_exp = dw_pcie_find_capability(pci, PCI_CAP_ID_EXP); + cap_exp = dw_pcie_get_pcie_cap(pci); val = dw_pcie_readl_dbi(pci, cap_exp + PCI_EXP_LNKCTL2); FIELD_MODIFY(PCI_EXP_LNKCTL2_TLS, &val, PCI_EXP_LNKCTL2_TLS_16_0GT); dw_pcie_writel_dbi(pci, cap_exp + PCI_EXP_LNKCTL2, val); -- 2.34.1 _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic