On Fri, Jun 10, 2022 at 11:29:19AM +0300, Serge Semin wrote: > On Fri, Jun 10, 2022 at 11:25:16AM +0300, Serge Semin wrote: > > This patchset is a first one in the series created in the framework of > > my Baikal-T1 PCIe/eDMA-related work: > > > > [1: In-progress v4] PCI: dwc: Various fixes and cleanups > > Link: ---you are looking at it--- > > [2: In-progress v2] PCI: dwc: Add hw version and dma-ranges support > > Link: https://lore.kernel.org/linux-pci/20220503214638.1895-1-Sergey.Semin@xxxxxxxxxxxxxxxxxxxx/ > > [3: In-progress v2] PCI: dwc: Add extended YAML-schema and Baikal-T1 support > > Link: https://lore.kernel.org/linux-pci/20220503214638.1895-1-Sergey.Semin@xxxxxxxxxxxxxxxxxxxx/ > > [4: In-progress v2] dmaengine: dw-edma: Add RP/EP local DMA support > > Link: https://lore.kernel.org/linux-pci/20220503225104.12108-1-Sergey.Semin@xxxxxxxxxxxxxxxxxxxx/ > > > > Note it is very recommended to merge the patchsets in the same order as > > they are placed in the list above in order to prevent possible merge > > conflicts. Nothing prevents them from being reviewed synchronously though. > > Any tests are very welcome! > > > > As it can be easily inferred from the patchset title, this series is about > > the DW PCIe Root Port/Endpoint driver fixes and the code cleanups, where > > fixes come before the cleanup patches. The patchset starts with adding the > > stop_link() platform-specific method invocation in case of the PCIe host > > probe procedure errors. It has been missing in the cleanup-on-error path > > of the DW PCIe Host initialization method. After that the unrolled CSRs > > layout is added to the iATU disable procedure. In third the disable iATU > > procedure is fixed to be called only for the internal ATU as being > > specific for the internal ATU implementation. Then the outbound iATU > > extended region setup procedure is fixed to have the INCREASE_REGION_SIZE > > flag set based on the limit-address - not the region size one. The last > > but not least the CDM-check enabling procedure is fixed to be independent > > from the non-related num_lanes field state. > > > > Afterwards there is a series of cleanups. It concerns the changes like > > adding braces to the multi-line if-else constructions, trailing new-lines > > to the print format-string, dropping unnecessary version checking, and > > various code simplifications and optimizations. > > > > New features like adding two-level DT bindings abstraction, adding better > > structured IP-core version interface, adding iATU regions size detection > > and the PCIe regions verification procedure, adding dma-ranges support, > > introducing a set of generic platform clocks and resets and finally adding > > Baikal-T1 PCIe interface support will be submitted in the next part of the > > series. > > > > Link: https://lore.kernel.org/linux-pci/20220324012524.16784-1-Sergey.Semin@xxxxxxxxxxxxxxxxxxxx/ > > Changelog v2: > > - Fix the end address of the example in the patch log with > > the INCREASE_REGION_SIZE flag usage fixup. It should be > > 0x1000FFFF and not 0x0000FFFF (@Manivannan). > > - Add the cleanup-on-error path to the dw_pcie_ep_init() function. > > (@Manivannan) > > > > Link: https://lore.kernel.org/linux-pci/20220503212300.30105-1-Sergey.Semin@xxxxxxxxxxxxxxxxxxxx/ > > Changelog v3: > > - Convert region variable type to u32 in order to fix the implicit type > > conversion peculiarity. (@kbot) > > - Rebase onto v5.18-rc6. > > > > Link: https://lore.kernel.org/linux-pci/20220517125058.18488-1-Sergey.Semin@xxxxxxxxxxxxxxxxxxxx/ > > Changelog v4: > > - Move the patch "PCI: dwc: Deallocate EPC memory on EP init error" to > > being applied before the cleanup patches. > > > - Add a new fixes patch: "PCI: dwc: Enable CDM-check independently from > > the num_lanes value". > > - Add a new cleanup patch: "PCI: dwc: Organize local variables usage". > > - Add a new cleanup patch: "PCI: dwc: Re-use local pointer to the > > resource data". > > - Add a new cleanup patch: "PCI: dwc: Add start_link/stop_link inliners". > > - Add a new cleanup patch: "PCI: dwc: Move io_cfg_atu_shared to the Root > > Port descriptor". > > - Add a new cleanup patch: "PCI: dwc: Add dw_ prefix to the pcie_port > > structure name". > > - Drop the patch "PCI: dwc: Don't use generic IO-ops for DBI-space > > access". (@Rob) > > - Drop Manivannan tested tag from the changed patches. > > @Mani, there are several brand new patches in this series and a few > ones updated (@Rob requests). Could you please have a look at the > patchset one more time? > Yep, this is on my todo list. But I'm in a company wide meetup currently. Will take a look once I'm back this weekend. I'll also give this series (and other ones) a go on my hardware. Thanks, Mani > -Sergey > > > - Rebase onto v5.18. > > > > Signed-off-by: Serge Semin <Sergey.Semin@xxxxxxxxxxxxxxxxxxxx> > > Cc: Alexey Malahov <Alexey.Malahov@xxxxxxxxxxxxxxxxxxxx> > > Cc: Pavel Parkhomenko <Pavel.Parkhomenko@xxxxxxxxxxxxxxxxxxxx> > > Cc: Jingoo Han <jingoohan1@xxxxxxxxx> > > Cc: Gustavo Pimentel <gustavo.pimentel@xxxxxxxxxxxx> > > Cc: "Krzysztof Wilczyński" <kw@xxxxxxxxx> > > Cc: Frank Li <Frank.Li@xxxxxxx> > > Cc: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx> > > Cc: linux-pci@xxxxxxxxxxxxxxx > > Cc: linux-kernel@xxxxxxxxxxxxxxx > > > > Serge Semin (18): > > PCI: dwc: Stop link in the host init error and de-initialization > > PCI: dwc: Add unroll iATU space support to the regions disable method > > PCI: dwc: Disable outbound windows for controllers with iATU > > PCI: dwc: Set INCREASE_REGION_SIZE flag based on limit address > > PCI: dwc: Deallocate EPC memory on EP init error > > PCI: dwc: Enable CDM-check independently from the num_lanes value > > PCI: dwc: Add braces to the multi-line if-else statements > > PCI: dwc: Add trailing new-line literals to the log messages > > PCI: dwc: Discard IP-core version checking on unrolled iATU detection > > PCI: dwc: Convert Link-up status method to using dw_pcie_readl_dbi() > > PCI: dwc: Organize local variables usage > > PCI: dwc: Re-use local pointer to the resource data > > PCI: dwc: Add start_link/stop_link inliners > > PCI: dwc: Move io_cfg_atu_shared to the Root Port descriptor > > PCI: dwc: Add dw_ prefix to the pcie_port structure name > > PCI: dwc-plat: Simplify the probe method return value handling > > PCI: dwc-plat: Discard unused regmap pointer > > PCI: dwc-plat: Drop dw_plat_pcie_of_match forward declaration > > > > drivers/pci/controller/dwc/pci-dra7xx.c | 12 +- > > drivers/pci/controller/dwc/pci-exynos.c | 6 +- > > drivers/pci/controller/dwc/pci-imx6.c | 6 +- > > drivers/pci/controller/dwc/pci-keystone.c | 20 ++-- > > .../pci/controller/dwc/pci-layerscape-ep.c | 12 -- > > drivers/pci/controller/dwc/pci-layerscape.c | 2 +- > > drivers/pci/controller/dwc/pci-meson.c | 2 +- > > drivers/pci/controller/dwc/pcie-al.c | 6 +- > > drivers/pci/controller/dwc/pcie-armada8k.c | 4 +- > > drivers/pci/controller/dwc/pcie-artpec6.c | 4 +- > > .../pci/controller/dwc/pcie-designware-ep.c | 30 +++-- > > .../pci/controller/dwc/pcie-designware-host.c | 104 ++++++++++-------- > > .../pci/controller/dwc/pcie-designware-plat.c | 25 +---- > > drivers/pci/controller/dwc/pcie-designware.c | 72 +++++++----- > > drivers/pci/controller/dwc/pcie-designware.h | 46 +++++--- > > drivers/pci/controller/dwc/pcie-dw-rockchip.c | 4 +- > > drivers/pci/controller/dwc/pcie-fu740.c | 2 +- > > drivers/pci/controller/dwc/pcie-histb.c | 10 +- > > drivers/pci/controller/dwc/pcie-intel-gw.c | 6 +- > > drivers/pci/controller/dwc/pcie-keembay.c | 4 +- > > drivers/pci/controller/dwc/pcie-kirin.c | 2 +- > > drivers/pci/controller/dwc/pcie-qcom.c | 4 +- > > drivers/pci/controller/dwc/pcie-spear13xx.c | 6 +- > > drivers/pci/controller/dwc/pcie-tegra194.c | 22 ++-- > > drivers/pci/controller/dwc/pcie-uniphier.c | 10 +- > > drivers/pci/controller/dwc/pcie-visconti.c | 6 +- > > 26 files changed, 225 insertions(+), 202 deletions(-) > > > > -- > > 2.35.1 > > -- மணிவண்ணன் சதாசிவம்
