From patchwork Fri Jul 28 13:13:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daire McNamara X-Patchwork-Id: 13331893 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 478F6C001E0 for ; Fri, 28 Jul 2023 13:14:29 +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=bLRksFSNTctksTBM/briAX5Tow4wGG0PK1Y0xRKz7Gk=; b=kPHa5pqyU5aqCk tAIRvelHqOGLFLZ2Rtk9T9L9yi63oPr0Axdb4aXYAcbJ2uO3pRTUJx8iyYnEJdJpzu2yUZ8rYt3cH 1eU0AJEpJqvznR7gmbzqLJ75on+hMByuMkKIWt+qZdQPsliI4YP5c/8Ug3jZ2yV3nnfBDA/mKYaFf U/huFCjmUV7HJdkvYEPMTbZfTV421vHZBZuf0EuvmDmD2kcgPQQpUKAUN7YchhKs7nWHt8WpvG434 PmGzBa6xh6JI97c1t4nBOEMApFDCG9hBfR810eOivZitrlsg/hP1L3ZLQmv336z3koFR5IvUDsRhZ WSONfxtGHgpuN1t0E/Iw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qPNIW-003VHH-0u; Fri, 28 Jul 2023 13:14:24 +0000 Received: from esa.microchip.iphmx.com ([68.232.153.233]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qPNIP-003VDy-0z for linux-riscv@lists.infradead.org; Fri, 28 Jul 2023 13:14:18 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1690550057; x=1722086057; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=D9GXduwijQK2bxnbxUdIwGcNUgABIPbcfCI5pRehEFA=; b=f3eC+UWi9YNpYZ0Z9oLBiI+EeZLuSfhe0Xvy2ebxPZynlC3/eZA06OTf axZL5llps/LmqhF8RnL5FgMQ7JWbCLHQ9bk8nV1UOHTC9rk7SOqFp9MNJ CJJaaoXyy9Lss/6Fs3xC0AJGbyKGMQIs/1Ye89O3SnIRsrcyFzMm7m182 QD2mWjKjFBbwpgmnbOMMLoy/Q8kaadhUHfaz3vevKuHHQWlSKk1J7KY8q coUChn0zHaCJh493Gc/51SLiyh8IytXT7wCR2Jx2l4EqYZLVJc6d8cFor I0caJhoeBm/Rv5+i878V6Mxb6rp88J8HhWd2rOuQ0UUM0TiTS/FCTkA15 g==; X-IronPort-AV: E=Sophos;i="6.01,237,1684825200"; d="scan'208";a="238431561" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa1.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 28 Jul 2023 06:14:14 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.21; Fri, 28 Jul 2023 06:14:14 -0700 Received: from daire-X570.amer.actel.com (10.10.115.15) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2507.21 via Frontend Transport; Fri, 28 Jul 2023 06:14:12 -0700 From: To: , , , , , , CC: Daire McNamara Subject: [PATCH v3 4/7] PCI: microchip: Enable event handlers to access bridge and ctrl ptrs Date: Fri, 28 Jul 2023 14:13:58 +0100 Message-ID: <20230728131401.1615724-5-daire.mcnamara@microchip.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230728131401.1615724-1-daire.mcnamara@microchip.com> References: <20230728131401.1615724-1-daire.mcnamara@microchip.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230728_061417_375953_BE75FD6C X-CRM114-Status: UNSURE ( 8.65 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org From: Daire McNamara Minor re-organisation so that event handlers can access both a pointer to the bridge area of the PCIe Root Port and the ctrl area of the PCIe Root Port. Signed-off-by: Daire McNamara Reviewed-by: Conor Dooley --- drivers/pci/controller/pcie-microchip-host.c | 31 ++++++++++---------- 1 file changed, 16 insertions(+), 15 deletions(-) diff --git a/drivers/pci/controller/pcie-microchip-host.c b/drivers/pci/controller/pcie-microchip-host.c index 30153fd1a2b3..a81e6d25e347 100644 --- a/drivers/pci/controller/pcie-microchip-host.c +++ b/drivers/pci/controller/pcie-microchip-host.c @@ -654,9 +654,10 @@ static inline u32 reg_to_event(u32 reg, struct event_map field) return (reg & field.reg_mask) ? BIT(field.event_bit) : 0; } -static u32 pcie_events(void __iomem *addr) +static u32 pcie_events(struct mc_pcie *port) { - u32 reg = readl_relaxed(addr); + void __iomem *ctrl_base_addr = port->axi_base_addr + MC_PCIE_CTRL_ADDR; + u32 reg = readl_relaxed(ctrl_base_addr + PCIE_EVENT_INT); u32 val = 0; int i; @@ -666,9 +667,10 @@ static u32 pcie_events(void __iomem *addr) return val; } -static u32 sec_errors(void __iomem *addr) +static u32 sec_errors(struct mc_pcie *port) { - u32 reg = readl_relaxed(addr); + void __iomem *ctrl_base_addr = port->axi_base_addr + MC_PCIE_CTRL_ADDR; + u32 reg = readl_relaxed(ctrl_base_addr + SEC_ERROR_INT); u32 val = 0; int i; @@ -678,9 +680,10 @@ static u32 sec_errors(void __iomem *addr) return val; } -static u32 ded_errors(void __iomem *addr) +static u32 ded_errors(struct mc_pcie *port) { - u32 reg = readl_relaxed(addr); + void __iomem *ctrl_base_addr = port->axi_base_addr + MC_PCIE_CTRL_ADDR; + u32 reg = readl_relaxed(ctrl_base_addr + DED_ERROR_INT); u32 val = 0; int i; @@ -690,9 +693,10 @@ static u32 ded_errors(void __iomem *addr) return val; } -static u32 local_events(void __iomem *addr) +static u32 local_events(struct mc_pcie *port) { - u32 reg = readl_relaxed(addr); + void __iomem *bridge_base_addr = port->axi_base_addr + MC_PCIE_BRIDGE_ADDR; + u32 reg = readl_relaxed(bridge_base_addr + ISTATUS_LOCAL); u32 val = 0; int i; @@ -704,15 +708,12 @@ static u32 local_events(void __iomem *addr) static u32 get_events(struct mc_pcie *port) { - void __iomem *bridge_base_addr = - port->axi_base_addr + MC_PCIE_BRIDGE_ADDR; - void __iomem *ctrl_base_addr = port->axi_base_addr + MC_PCIE_CTRL_ADDR; u32 events = 0; - events |= pcie_events(ctrl_base_addr + PCIE_EVENT_INT); - events |= sec_errors(ctrl_base_addr + SEC_ERROR_INT); - events |= ded_errors(ctrl_base_addr + DED_ERROR_INT); - events |= local_events(bridge_base_addr + ISTATUS_LOCAL); + events |= pcie_events(port); + events |= sec_errors(port); + events |= ded_errors(port); + events |= local_events(port); return events; }