All of lore.kernel.org
 help / color / mirror / Atom feed
From: "David E. Box" <david.e.box@linux.intel.com>
To: lee.jones@linaro.org, hdegoede@redhat.com,
	mgross@linux.intel.com, bhelgaas@google.com,
	gregkh@linuxfoundation.org, andriy.shevchenko@linux.intel.com,
	srinivas.pandruvada@intel.com
Cc: "David E. Box" <david.e.box@linux.intel.com>,
	linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org,
	platform-driver-x86@vger.kernel.org, linux-pci@vger.kernel.org
Subject: [PATCH 1/5] PCI: Add #defines for accessing PCIe DVSEC fields
Date: Thu, 30 Sep 2021 18:28:11 -0700	[thread overview]
Message-ID: <20211001012815.1999501-2-david.e.box@linux.intel.com> (raw)
In-Reply-To: <20211001012815.1999501-1-david.e.box@linux.intel.com>

Add #defines for accessing Vendor ID, Revision, Length, and ID offsets
in the Designated Vendor Specific Extended Capability (DVSEC). Defined
in PCIe r5.0, sec 7.9.6.

Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
---
V1:	s/PCIE/PCIe in commit message as requested by Bjorn

 include/uapi/linux/pci_regs.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h
index e709ae8235e7..57ee51f19283 100644
--- a/include/uapi/linux/pci_regs.h
+++ b/include/uapi/linux/pci_regs.h
@@ -1080,7 +1080,11 @@
 
 /* Designated Vendor-Specific (DVSEC, PCI_EXT_CAP_ID_DVSEC) */
 #define PCI_DVSEC_HEADER1		0x4 /* Designated Vendor-Specific Header1 */
+#define  PCI_DVSEC_HEADER1_VID(x)	((x) & 0xffff)
+#define  PCI_DVSEC_HEADER1_REV(x)	(((x) >> 16) & 0xf)
+#define  PCI_DVSEC_HEADER1_LEN(x)	(((x) >> 20) & 0xfff)
 #define PCI_DVSEC_HEADER2		0x8 /* Designated Vendor-Specific Header2 */
+#define  PCI_DVSEC_HEADER2_ID(x)		((x) & 0xffff)
 
 /* Data Link Feature */
 #define PCI_DLF_CAP		0x04	/* Capabilities Register */
-- 
2.25.1


  reply	other threads:[~2021-10-01  1:28 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-01  1:28 [PATCH 0/5] Move intel_pm from MFD to Auxiliary bus David E. Box
2021-10-01  1:28 ` David E. Box [this message]
2021-10-01  1:28 ` [PATCH 2/5] platform/x86/intel: Move intel_pmt from MFD to Auxiliary Bus David E. Box
2021-10-06  8:58   ` Leon Romanovsky
2021-10-06 20:58     ` David E. Box
2021-10-10  6:59       ` Leon Romanovsky
2021-11-14  1:56   ` kernel test robot
2021-11-14  1:56     ` kernel test robot
2021-10-01  1:28 ` [PATCH 3/5] platform/x86/intel: extended_caps: Add support for PCIe VSEC structures David E. Box
2021-10-01  1:28 ` [PATCH 4/5] Documentation: Update ioctl-number.rst for Intel Software Defined Silicon interface David E. Box
2021-10-01  1:28 ` [PATCH 5/5] platform/x86: Add Intel Software Defined Silicon driver David E. Box
2021-10-01  7:14   ` Greg KH
2021-10-01 10:38     ` David E. Box
2021-10-01 11:29       ` Greg KH
2021-10-01  7:15   ` Greg KH
2021-10-01  7:16   ` Greg KH
2021-10-01 10:47     ` David E. Box
2021-10-01 11:27       ` Greg KH
2021-10-01  7:29   ` Greg KH
2021-10-01 11:13     ` David E. Box
2021-10-01 11:26       ` Greg KH
2021-10-01 20:43         ` David E. Box

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20211001012815.1999501-2-david.e.box@linux.intel.com \
    --to=david.e.box@linux.intel.com \
    --cc=andriy.shevchenko@linux.intel.com \
    --cc=bhelgaas@google.com \
    --cc=gregkh@linuxfoundation.org \
    --cc=hdegoede@redhat.com \
    --cc=lee.jones@linaro.org \
    --cc=linux-doc@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pci@vger.kernel.org \
    --cc=mgross@linux.intel.com \
    --cc=platform-driver-x86@vger.kernel.org \
    --cc=srinivas.pandruvada@intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.