linux-kernel - [PATCH 0/4] Add support to defer core initialization

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20191113090851.26345-1-vidyas@nvidia.com>
Date:   Wed, 13 Nov 2019 14:38:47 +0530
From:   Vidya Sagar <vidyas@...dia.com>
To:     <jingoohan1@...il.com>, <gustavo.pimentel@...opsys.com>,
        <lorenzo.pieralisi@....com>, <andrew.murray@....com>,
        <bhelgaas@...gle.com>, <kishon@...com>, <thierry.reding@...il.com>
CC:     <Jisheng.Zhang@...aptics.com>, <jonathanh@...dia.com>,
        <linux-pci@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <kthota@...dia.com>, <mmaddireddy@...dia.com>, <vidyas@...dia.com>,
        <sagar.tv@...il.com>
Subject: [PATCH 0/4] Add support to defer core initialization

EPC/DesignWare core endpoint subsystems assume that the core registers are
available always for SW to initialize. But, that may not be the case always.
For example, Tegra194 hardware has the core running on a clock that is derived
from reference clock that is coming into the endpoint system from host.
Hence core is made available asynchronously based on when host system is going
for enumeration of devices. To accommodate this kind of hardwares, support is
required to defer the core initialization until the respective platform driver
informs the EPC/DWC endpoint sub-systems that the core is indeed available for
initiaization. This patch series is attempting to add precisely that.
This series is based on Kishon's patch that adds notification mechanism
support from EPC to EPF @ http://patchwork.ozlabs.org/patch/1109884/

Vidya Sagar (4):
  PCI: dwc: Add new feature to skip core initialization
  PCI: endpoint: Add notification for core init completion
  PCI: dwc: Add API to notify core initialization completion
  PCI: pci-epf-test: Add support to defer core initialization

 .../pci/controller/dwc/pcie-designware-ep.c   |  79 +++++++-----
 drivers/pci/controller/dwc/pcie-designware.h  |  11 ++
 drivers/pci/endpoint/functions/pci-epf-test.c | 114 ++++++++++++------
 drivers/pci/endpoint/pci-epc-core.c           |  19 ++-
 include/linux/pci-epc.h                       |   2 +
 include/linux/pci-epf.h                       |   5 +
 6 files changed, 164 insertions(+), 66 deletions(-)

-- 
2.17.1