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From: Vidya Sagar <vidyas@nvidia.com>
To: <lorenzo.pieralisi@arm.com>, <bhelgaas@google.com>,
	<robh+dt@kernel.org>, <mark.rutland@arm.com>,
	<thierry.reding@gmail.com>, <jonathanh@nvidia.com>,
	<kishon@ti.com>, <catalin.marinas@arm.com>, <will.deacon@arm.com>,
	<jingoohan1@gmail.com>, <gustavo.pimentel@synopsys.com>
Cc: <digetx@gmail.com>, <mperttunen@nvidia.com>,
	<linux-pci@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-tegra@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>, <kthota@nvidia.com>,
	<mmaddireddy@nvidia.com>, <vidyas@nvidia.com>,
	<sagar.tv@gmail.com>
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	[thread overview]
Message-ID: <20190809044609.20401-2-vidyas@nvidia.com> (raw)
In-Reply-To: <20190809044609.20401-1-vidyas@nvidia.com>

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 <vidyas@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
---
V15:
* None

V14:
* Added 'Acked-by: Bjorn Helgaas <bhelgaas@google.com>'

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


  reply	other threads:[~2019-08-09  4:46 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-09  4:45 [PATCH V15 00/13] PCI: tegra: Add Tegra194 PCIe support Vidya Sagar
2019-08-09  4:45 ` Vidya Sagar [this message]
2019-08-09  4:45 ` [PATCH V15 02/13] PCI: Disable MSI for Tegra root ports Vidya Sagar
2019-08-09  4:45 ` [PATCH V15 03/13] PCI: dwc: Perform dbi regs write lock towards the end Vidya Sagar
2019-08-09  4:46 ` [PATCH V15 04/13] PCI: dwc: Move config space capability search API Vidya Sagar
2019-08-09  4:46 ` [PATCH V15 05/13] PCI: dwc: Add ext " Vidya Sagar
2019-08-09  4:46 ` [PATCH V15 06/13] PCI: dwc: Export dw_pcie_wait_for_link() API Vidya Sagar
2019-08-09  4:46 ` [PATCH V15 07/13] dt-bindings: PCI: designware: Add binding for CDM register check Vidya Sagar
2019-08-09  4:46 ` [PATCH V15 08/13] PCI: dwc: Add support to enable " Vidya Sagar
2019-08-09  4:46 ` [PATCH V15 09/13] dt-bindings: Add PCIe supports-clkreq property Vidya Sagar
2019-08-09  4:46 ` [PATCH V15 10/13] dt-bindings: PCI: tegra: Add device tree support for Tegra194 Vidya Sagar
2019-08-09  4:46 ` [PATCH V15 11/13] dt-bindings: PHY: P2U: Add Tegra194 P2U block Vidya Sagar
2019-08-09  4:46 ` [PATCH V15 12/13] phy: tegra: Add PCIe PIPE2UPHY support Vidya Sagar
2019-08-12 10:23   ` Thierry Reding
2019-08-09  4:46 ` [PATCH V15 13/13] PCI: tegra: Add Tegra194 PCIe support Vidya Sagar
2019-08-13 10:57   ` Lorenzo Pieralisi
2019-08-13 11:36     ` Vidya Sagar
2019-08-12 10:25 ` [PATCH V15 00/13] " Thierry Reding
2019-08-12 10:29   ` Vidya Sagar
2019-08-12 10:34     ` Thierry Reding

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