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Message-Id: <20200819180255.11770-2-david.e.box@linux.intel.com>
Date: Wed, 19 Aug 2020 11:02:53 -0700
From: "David E. Box" <david.e.box@...ux.intel.com>
To: lee.jones@...aro.org, david.e.box@...ux.intel.com,
dvhart@...radead.org, andy@...radead.org, bhelgaas@...gle.com,
alexander.h.duyck@...ux.intel.com
Cc: linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org,
linux-pci@...r.kernel.org,
Andy Shevchenko <andy.shevchenko@...il.com>
Subject: [PATCH V5 1/3] PCI: Add defines for Designated Vendor-Specific Extended Capability
Add PCIe Designated Vendor-Specific Extended Capability (DVSEC) and defines
for the header offsets. Defined in PCIe r5.0, sec 7.9.6.
Signed-off-by: David E. Box <david.e.box@...ux.intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@...gle.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@...il.com>
---
include/uapi/linux/pci_regs.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h
index f9701410d3b5..beafeee39e44 100644
--- a/include/uapi/linux/pci_regs.h
+++ b/include/uapi/linux/pci_regs.h
@@ -720,6 +720,7 @@
#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_DVSEC 0x23 /* Designated Vendor-Specific */
#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
@@ -1062,6 +1063,10 @@
#define PCI_L1SS_CTL1_LTR_L12_TH_SCALE 0xe0000000 /* LTR_L1.2_THRESHOLD_Scale */
#define PCI_L1SS_CTL2 0x0c /* Control 2 Register */
+/* Designated Vendor-Specific (DVSEC, PCI_EXT_CAP_ID_DVSEC) */
+#define PCI_DVSEC_HEADER1 0x4 /* Designated Vendor-Specific Header1 */
+#define PCI_DVSEC_HEADER2 0x8 /* Designated Vendor-Specific Header2 */
+
/* Data Link Feature */
#define PCI_DLF_CAP 0x04 /* Capabilities Register */
#define PCI_DLF_EXCHANGE_ENABLE 0x80000000 /* Data Link Feature Exchange Enable */
--
2.20.1
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