linux-kernel - [PATCH v5 00/12] PCI endpoint 64-bit BAR fixes

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Message-Id: <20180328115018.31921-1-niklas.cassel@axis.com>
Date:   Wed, 28 Mar 2018 13:50:05 +0200
From:   Niklas Cassel <niklas.cassel@...s.com>
To:     kishon@...com, cyrille.pitchen@...e-electrons.com,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alan Douglas <adouglas@...ence.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Jingoo Han <jingoohan1@...il.com>,
        Joao Pinto <Joao.Pinto@...opsys.com>
Cc:     Niklas Cassel <niklass@...s.com>, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v5 00/12] PCI endpoint 64-bit BAR fixes

PCI endpoint fixes to improve the way 64-bit BARs are handled.


There are still future improvements that could be made:

pci-epf-test.c always allocates space for
6 BARs, even when using 64-bit BARs (which
really only requires us to allocate 3 BARs).

pcitest.sh will print "NOT OKAY" for BAR1,
BAR3, and BAR5 when using 64-bit BARs.
This could probably be improved to say
something like "N/A (64-bit BAR)".

Niklas Cassel (12):
  PCI: endpoint: BAR width should not depend on sizeof dma_addr_t
  PCI: endpoint: Simplify epc->ops->set_bar()/pci_epc_set_bar()
  PCI: endpoint: Setting BAR_5 to 64-bits wide is invalid
  PCI: endpoint: Setting 64-bit/prefetch bit is invalid when IO is set
  PCI: endpoint: Setting a BAR size > 4 GB is invalid if 64-bit flag is
    not set
  PCI: designware-ep: Make dw_pcie_ep_set_bar() handle 64-bit BARs
    properly
  PCI: cadence: Set PCI_BASE_ADDRESS_MEM_TYPE_64 if a 64-bit BAR was
    set-up
  PCI: endpoint: Handle 64-bit BARs properly
  PCI: endpoint: Make epc->ops->clear_bar()/pci_epc_clear_bar() take
    struct *epf_bar
  PCI: endpoint: Make sure that BAR_5 does not have 64-bit flag set when
    clearing
  PCI: designware-ep: Make dw_pcie_ep_reset_bar() handle 64-bit BARs
    properly
  misc: pci_endpoint_test: Handle 64-bit BARs properly

 drivers/misc/pci_endpoint_test.c              | 12 +++++----
 drivers/pci/cadence/pcie-cadence-ep.c         | 15 ++++++++---
 drivers/pci/dwc/pcie-designware-ep.c          | 36 +++++++++++++++++++++------
 drivers/pci/endpoint/functions/pci-epf-test.c | 28 +++++++++++++--------
 drivers/pci/endpoint/pci-epc-core.c           | 32 +++++++++++++++---------
 drivers/pci/endpoint/pci-epf-core.c           |  4 +++
 include/linux/pci-epc.h                       | 11 ++++----
 include/linux/pci-epf.h                       |  2 ++
 8 files changed, 95 insertions(+), 45 deletions(-)

-- 
2.14.2