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Fri, 9 Aug 2019 04:46:23 +0000 Received: from hqnvemgw01.nvidia.com (172.20.150.20) by HQMAIL101.nvidia.com (172.20.187.10) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Fri, 9 Aug 2019 04:46:23 +0000 Received: from vidyas-desktop.nvidia.com (Not Verified[10.24.37.38]) by hqnvemgw01.nvidia.com with Trustwave SEG (v7, 5, 8, 10121) id ; Thu, 08 Aug 2019 21:46:23 -0700 From: Vidya Sagar To: , , , , , , , , , , Subject: [PATCH V15 01/13] PCI: Add #defines for some of PCIe spec r4.0 features Date: Fri, 9 Aug 2019 10:15:57 +0530 Message-ID: <20190809044609.20401-2-vidyas@nvidia.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190809044609.20401-1-vidyas@nvidia.com> References: <20190809044609.20401-1-vidyas@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1565325986; bh=yFehXsjNRJlHL1q3HvFaPjCAb4XcBfWHr7DU4Chl2+E=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:X-NVConfidentiality:MIME-Version: Content-Type; b=ZkkApcqIP6rS4apWxAauoQ0sCR80NNyVRug21JxPLtuoRreP/Z8cHWhEWO2U3q1LO iEJW/Yio6I6rk/I6runlgLfZ/no1zYeuBahes6oNkZWWNGzFgXEJqfjZHLec+nI6ut fUGwAfrQ2kodhis8kxDu49hZ96mZgv21sefHW+66zVJyoL8qllLOPlAtRnx4LMO6si hBcU5pkpnbnd3sw9dT2BsiWHbXam8GeX3HYNlQ743zVHK4u1ZyNt4OxpPXQDbOL+PA cRtdJxtIUpWqGT/nCOxlcZCeEpxc/AceNcFIlLuOzMY7SR/wQ3cG6fNPQlO1hM2SKU sp5vSrzzsXAag== X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190808_214625_239006_93BC2728 X-CRM114-Status: UNSURE ( 7.93 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, mmaddireddy@nvidia.com, kthota@nvidia.com, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, mperttunen@nvidia.com, linux-tegra@vger.kernel.org, digetx@gmail.com, vidyas@nvidia.com, linux-arm-kernel@lists.infradead.org, sagar.tv@gmail.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add #defines only for the Data Link Feature and Physical Layer 16.0 GT/s features as defined in PCIe spec r4.0, sec 7.7.4 for Data Link Feature and sec 7.7.5 for Physical Layer 16.0 GT/s. Signed-off-by: Vidya Sagar Reviewed-by: Thierry Reding Acked-by: Bjorn Helgaas --- V15: * None V14: * Added 'Acked-by: Bjorn Helgaas ' V13: * Updated commit message to include references from spec * Removed unused defines and moved some from pcie-tegra194.c file * Addressed review comments from Bjorn V12: * None V11: * None V10: * None V9: * None V8: * None V7: * None V6: * None V5: * None V4: * None V3: * Updated commit message and description to explicitly mention that defines are added only for some of the features and not all. V2: * None include/uapi/linux/pci_regs.h | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h index f28e562d7ca8..d28d0319d932 100644 --- a/include/uapi/linux/pci_regs.h +++ b/include/uapi/linux/pci_regs.h @@ -713,7 +713,9 @@ #define PCI_EXT_CAP_ID_DPC 0x1D /* Downstream Port Containment */ #define PCI_EXT_CAP_ID_L1SS 0x1E /* L1 PM Substates */ #define PCI_EXT_CAP_ID_PTM 0x1F /* Precision Time Measurement */ -#define PCI_EXT_CAP_ID_MAX PCI_EXT_CAP_ID_PTM +#define PCI_EXT_CAP_ID_DLF 0x25 /* Data Link Feature */ +#define PCI_EXT_CAP_ID_PL_16GT 0x26 /* Physical Layer 16.0 GT/s */ +#define PCI_EXT_CAP_ID_MAX PCI_EXT_CAP_ID_PL_16GT #define PCI_EXT_CAP_DSN_SIZEOF 12 #define PCI_EXT_CAP_MCAST_ENDPOINT_SIZEOF 40 @@ -1053,4 +1055,14 @@ #define PCI_L1SS_CTL1_LTR_L12_TH_SCALE 0xe0000000 /* LTR_L1.2_THRESHOLD_Scale */ #define PCI_L1SS_CTL2 0x0c /* Control 2 Register */ +/* Data Link Feature */ +#define PCI_DLF_CAP 0x04 /* Capabilities Register */ +#define PCI_DLF_EXCHANGE_ENABLE 0x80000000 /* Data Link Feature Exchange Enable */ + +/* Physical Layer 16.0 GT/s */ +#define PCI_PL_16GT_LE_CTRL 0x20 /* Lane Equalization Control Register */ +#define PCI_PL_16GT_LE_CTRL_DSP_TX_PRESET_MASK 0x0000000F +#define PCI_PL_16GT_LE_CTRL_USP_TX_PRESET_MASK 0x000000F0 +#define PCI_PL_16GT_LE_CTRL_USP_TX_PRESET_SHIFT 4 + #endif /* LINUX_PCI_REGS_H */ -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel