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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 17730C433EF for ; Tue, 30 Nov 2021 17:29:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238751AbhK3Rcn (ORCPT ); Tue, 30 Nov 2021 12:32:43 -0500 Received: from ams.source.kernel.org ([145.40.68.75]:36676 "EHLO ams.source.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238691AbhK3Rcn (ORCPT ); Tue, 30 Nov 2021 12:32:43 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 5FFF4B81B10 for ; Tue, 30 Nov 2021 17:29:23 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1791DC53FD1; Tue, 30 Nov 2021 17:29:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1638293362; bh=Zom8OJtYEZV8oJ9yPxDBKMP/73UFTt2PWS5ADcIzuzs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FsmmWVubwgOayIr+3zpVF4ecDCQLAlk8oth/V6CCMC38GFMmCR2suWzx1fVBp4arN FjizH4lg0IX1dFQfqUcGg+gs9t0MrDM5yCLuGJoeyAGX6152CquUXtJfTdIAPo5wFN y/HhbRjxnOZQ10IVfXG/pHgbWU/tJ0bRWu4BuEDyvETzbScLE7gV7degFNnyDLxvpc tMPF+m+24K64rMRlhOdpHqsno6UYG5CqY3U9uVkIW65e4oE/tl9W7NEy0vySTXlHRL iuvJ/59yB8tZFSKw5guvzwCCBAAPldGLAWRJp5I85p6B29FeHbHwgn3FyaKhwJnUKR 8y/jy9vkp1mcw== From: =?UTF-8?q?Marek=20Beh=C3=BAn?= To: Lorenzo Pieralisi Cc: pali@kernel.org, linux-pci@vger.kernel.org, =?UTF-8?q?Marek=20Beh=C3=BAn?= Subject: [PATCH v4 03/11] PCI: aardvark: Add support for DEVCAP2, DEVCTL2, LNKCAP2 and LNKCTL2 registers on emulated bridge Date: Tue, 30 Nov 2021 18:29:05 +0100 Message-Id: <20211130172913.9727-4-kabel@kernel.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20211130172913.9727-1-kabel@kernel.org> References: <20211130172913.9727-1-kabel@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Pali Rohár PCI aardvark hardware supports access to DEVCAP2, DEVCTL2, LNKCAP2 and LNKCTL2 configuration registers of PCIe core via PCIE_CORE_PCIEXP_CAP. Export them via emulated software root bridge. Signed-off-by: Pali Rohár Signed-off-by: Marek Behún --- drivers/pci/controller/pci-aardvark.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c index c5300d49807a..25af189a1052 100644 --- a/drivers/pci/controller/pci-aardvark.c +++ b/drivers/pci/controller/pci-aardvark.c @@ -884,8 +884,13 @@ advk_pci_bridge_emul_pcie_conf_read(struct pci_bridge_emul *bridge, case PCI_CAP_LIST_ID: case PCI_EXP_DEVCAP: case PCI_EXP_DEVCTL: + case PCI_EXP_DEVCAP2: + case PCI_EXP_DEVCTL2: + case PCI_EXP_LNKCAP2: + case PCI_EXP_LNKCTL2: *value = advk_readl(pcie, PCIE_CORE_PCIEXP_CAP + reg); return PCI_BRIDGE_EMUL_HANDLED; + default: return PCI_BRIDGE_EMUL_NOT_HANDLED; } @@ -899,10 +904,6 @@ advk_pci_bridge_emul_pcie_conf_write(struct pci_bridge_emul *bridge, struct advk_pcie *pcie = bridge->data; switch (reg) { - case PCI_EXP_DEVCTL: - advk_writel(pcie, new, PCIE_CORE_PCIEXP_CAP + reg); - break; - case PCI_EXP_LNKCTL: advk_writel(pcie, new, PCIE_CORE_PCIEXP_CAP + reg); if (new & PCI_EXP_LNKCTL_RL) @@ -924,6 +925,12 @@ advk_pci_bridge_emul_pcie_conf_write(struct pci_bridge_emul *bridge, advk_writel(pcie, new, PCIE_ISR0_REG); break; + case PCI_EXP_DEVCTL: + case PCI_EXP_DEVCTL2: + case PCI_EXP_LNKCTL2: + advk_writel(pcie, new, PCIE_CORE_PCIEXP_CAP + reg); + break; + default: break; } -- 2.32.0