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(unknown []) by gzga-smtp-mtada-g1-4 (Coremail) with SMTP id _____wD3Dz_umOBqUsqlCw--.64541S7; Tue, 27 Oct 2026 20:28:36 +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 v4 05/16] PCI: dwc: meson: Use cached PCIe capability offset Date: Tue, 27 Oct 2026 20:28:16 +0800 Message-ID: <20261027122827.2725643-6-18255117159@163.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20261027122827.2725643-1-18255117159@163.com> References: <20261027122827.2725643-1-18255117159@163.com> X-Archived-By: MIME-Version: 1.0 X-CM-TRANSID: _____wD3Dz_umOBqUsqlCw--.64541S7 X-Coremail-Antispam: 1Uf129KBjvJXoW7uFyrtr45Xw1kZr4rZFyxXwb_yoW8WF1fpr WYgF4Fkr1rAr4YgwsFka1ruFy3Jas8ArW7Ja9xKw1S9Fy7KanrGa4akFWSka4xWFsF9F1q 9Fn8tryUZws5JrUanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x0piQtx-UUUUU= X-CM-SenderInfo: rpryjkyvrrlimvzbiqqrwthudrp/xtbC6xQ22WrgmPQX+QAA3Y X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261027_052855_838916_42BCAD7B X-CRM114-Status: GOOD ( 11.04 ) X-Spam-Score: -1.8 (-) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_EF,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, FROM_LOCAL_DIGITS,FROM_LOCAL_HEX,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Replace the dw_pcie_find_capability(pci, PCI_CAP_ID_EXP) calls in meson_set_max_payload() and meson_set_max_rd_req_size() with dw_pcie_get_pcie_cap() and store the offset in a u8, which is the type used everywhere else for a capability offset. Both functions are called from meson_pcie_host_init(), which runs after the controller clocks and resets have been enabled, so the first lookup happens exactly where the open coded search used to happen. Signed-off-by: Hans Zhang <18255117159@163.com> --- drivers/pci/controller/dwc/pci-meson.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/pci/controller/dwc/pci-meson.c b/drivers/pci/controller/dwc/pci-meson.c index 8559d132dcde..03dd1282f3f3 100644 --- a/drivers/pci/controller/dwc/pci-meson.c +++ b/drivers/pci/controller/dwc/pci-meson.c @@ -277,7 +277,7 @@ static void meson_set_max_payload(struct meson_pcie *mp, int size) { struct dw_pcie *pci = &mp->pci; u32 val; - u16 offset = dw_pcie_find_capability(pci, PCI_CAP_ID_EXP); + u8 offset = dw_pcie_get_pcie_cap(pci); int max_payload_size = meson_size_to_payload(mp, size); val = dw_pcie_readl_dbi(pci, offset + PCI_EXP_DEVCTL); @@ -293,7 +293,7 @@ static void meson_set_max_rd_req_size(struct meson_pcie *mp, int size) { struct dw_pcie *pci = &mp->pci; u32 val; - u16 offset = dw_pcie_find_capability(pci, PCI_CAP_ID_EXP); + u8 offset = dw_pcie_get_pcie_cap(pci); int max_rd_req_size = meson_size_to_payload(mp, size); val = dw_pcie_readl_dbi(pci, offset + PCI_EXP_DEVCTL); -- 2.43.0 _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic