linux-kernel - [PATCH v2 0/4] PCI: of: Improvements to handle 64-bit attribute for non-prefetchable ranges

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Date:   Tue,  1 Jun 2021 07:10:53 +0900
From:   Punit Agrawal <punitagrawal@...il.com>
To:     linux-rockchip@...ts.infradead.org, linux-pci@...r.kernel.org
Cc:     Punit Agrawal <punitagrawal@...il.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        alexandru.elisei@....com, wqu@...e.com, robin.murphy@....com,
        pgwipeout@...il.com, ardb@...nel.org, briannorris@...omium.org,
        shawn.lin@...k-chips.com, helgaas@...nel.org, robh+dt@...nel.org
Subject: [PATCH v2 0/4] PCI: of: Improvements to handle 64-bit attribute for non-prefetchable ranges

Hi,

Here's an updated version of changes to improve handling of the 64-bit
attribute on non-prefetchable host bridge ranges. Previous version can
be found at [0].

The series addresses Rob and Bjorn's comments on the previous version
and updates the checks for 32-bit non-prefetchable window size to only
apply to non 64-bit ranges.

Thanks,
Punit

Changes:
v2:
* Check ranges PCI / bus addresses rather than CPU addresses
* (new) Restrict 32-bit size warnings on ranges that don't have the 64-bit attribute set
* Refactor the 32-bit size warning to the range parsing loop. This
  change also prints the warnings right after the window mappings are
  logged.

[0] https://lore.kernel.org/linux-arm-kernel/20210527150541.3130505-1-punitagrawal@gmail.com/

Punit Agrawal (4):
  PCI: of: Override 64-bit flag for non-prefetchable memory below 4GB
  PCI: of: Relax the condition for warning about non-prefetchable memory
    aperture size
  PCI: of: Refactor the check for non-prefetchable 32-bit window
  arm64: dts: rockchip: Update PCI host bridge window to 32-bit address
    memory

 arch/arm64/boot/dts/rockchip/rk3399.dtsi |  2 +-
 drivers/pci/of.c                         | 17 ++++++++++++-----
 2 files changed, 13 insertions(+), 6 deletions(-)

-- 
2.30.2