[PATCH v2 0/2] PCI endpoint BAR hardware description cleanup
Manivannan Sadhasivam
manivannan.sadhasivam at linaro.org
Sat Feb 17 02:02:08 AEDT 2024
On Fri, Feb 16, 2024 at 02:45:13PM +0100, Niklas Cassel wrote:
> The series is based on top of:
> https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git/log/?h=endpoint
>
>
> Hello all,
>
> This series cleans up the hardware description for PCI endpoint BARs.
>
> The problems with the existing hardware description:
> -The documentation is lackluster.
> -Some of the names are confusingly similar, e.g. fixed_64bit and
> fixed_size, even though these are for completely unrelated things.
> -The way that the BARs are defined in the endpoint controller drivers
> is messy, because the left hand side is not a BAR, so you can mark a
> BAR as e.g. both fixed size and reserved.
>
> This series tries to address all the problems above.
>
> Personally, I think that the code is more readable, both the endpoint
> controller drivers, but also pci-epc-core.c.
>
> (I will be sending out a patch series that adds BAR_RESIZABLE to enum
> pci_epc_bar_type in the coming week.)
>
Applied to pci/endpoint!
- Mani
>
> Kind regards,
> Niklas
>
>
> Changes since V1:
> -Picked up tags from Kishon and Mani.
> -Improved commit message for patch 1/2 as suggested by Mani.
> -Improved kdoc in patch 2/2 as suggested by Mani.
>
>
> Niklas Cassel (2):
> PCI: endpoint: Clean up hardware description for BARs
> PCI: endpoint: Drop only_64bit on reserved BARs
>
> drivers/pci/controller/dwc/pci-imx6.c | 3 +-
> drivers/pci/controller/dwc/pci-keystone.c | 12 +++---
> .../pci/controller/dwc/pci-layerscape-ep.c | 5 ++-
> drivers/pci/controller/dwc/pcie-keembay.c | 8 +++-
> drivers/pci/controller/dwc/pcie-rcar-gen4.c | 4 +-
> drivers/pci/controller/dwc/pcie-tegra194.c | 10 +++--
> drivers/pci/controller/dwc/pcie-uniphier-ep.c | 15 +++++--
> drivers/pci/controller/pcie-rcar-ep.c | 14 ++++---
> drivers/pci/endpoint/functions/pci-epf-ntb.c | 4 +-
> drivers/pci/endpoint/functions/pci-epf-test.c | 8 ++--
> drivers/pci/endpoint/functions/pci-epf-vntb.c | 2 +-
> drivers/pci/endpoint/pci-epc-core.c | 25 +++++-------
> drivers/pci/endpoint/pci-epf-core.c | 15 +++----
> include/linux/pci-epc.h | 39 ++++++++++++++++---
> 14 files changed, 106 insertions(+), 58 deletions(-)
>
> --
> 2.43.1
>
--
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