From: Jisheng Zhang <Jisheng.Zhang@synaptics•com>
To: Vidya Sagar <vidyas@nvidia•com>
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Subject: Re: [PATCH 01/10] PCI: save pci_bus pointer in pcie_port structure
Date: Thu, 28 Mar 2019 07:18:03 +0000 [thread overview]
Message-ID: <20190328151008.5e563e3a@xhacker.debian> (raw)
In-Reply-To: <1553613207-3988-2-git-send-email-vidyas@nvidia.com>
On Tue, 26 Mar 2019 20:43:18 +0530Vidya Sagar wrote:
>
> save pci_bus pointer created by PCIe sub-system's
> pci_scan_root_bus_bridge() to be used by host controller drivers for post
> processing. Tegra host controller driver needs it for the following
> reasons
> - to derive pci_host_bridge structure from pci_bus which is used to
> configure iATU's outbound regions for different windows accesses
> - to traverse and configure downstream hierarchy. One such case is,
> configuring all immediate downstream devices to D0 state before transiting
> link to L2 state. Saving pci_bus pointer seems the best method compared to
> deriving it by other means.
hmm, I submitted similar patch for another purpose last month,
https://patchwork.kernel.org/patch/10830029/
then v3 weeks ago
https://lkml.org/lkml/2019/3/18/375
And get Acks from Gustavo. But it seems that it isn't merged to dwc next
branch in Lorenzo's tree
Maybe Lorenzo have some idea of handling this case.
Thanks
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next prev parent reply other threads:[~2019-03-28 7:18 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-26 15:13 [PATCH 00/10] Add Tegra194 PCIe support Vidya Sagar
2019-03-26 15:13 ` [PATCH 01/10] PCI: save pci_bus pointer in pcie_port structure Vidya Sagar
2019-03-28 7:18 ` Jisheng Zhang [this message]
2019-03-28 7:38 ` Vidya Sagar
2019-03-26 15:13 ` [PATCH 02/10] PCI: perform dbi regs write lock towards the end Vidya Sagar
2019-03-26 15:13 ` [PATCH 03/10] PCI: dwc: Move config space capability search API Vidya Sagar
2019-03-28 12:33 ` Thierry Reding
2019-04-01 11:46 ` Vidya Sagar
2019-03-26 15:13 ` [PATCH 04/10] PCI: Add #defines for PCIe spec r4.0 features Vidya Sagar
2019-03-26 15:13 ` [PATCH 05/10] dt-bindings: PCI: tegra: Add device tree support for T194 Vidya Sagar
2019-03-27 10:10 ` Jon Hunter
2019-03-27 10:53 ` Vidya Sagar
2019-03-28 13:15 ` Thierry Reding
2019-04-01 10:01 ` Vidya Sagar
2019-04-01 15:07 ` Thierry Reding
2019-04-02 11:41 ` Vidya Sagar
2019-04-02 14:35 ` Thierry Reding
2019-04-03 6:22 ` Vidya Sagar
2019-04-02 19:21 ` Bjorn Helgaas
2019-03-31 6:42 ` Rob Herring
2019-04-01 11:18 ` Vidya Sagar
2019-04-01 14:31 ` Thierry Reding
2019-04-02 9:16 ` Vidya Sagar
2019-04-02 14:20 ` Thierry Reding
2019-04-03 5:29 ` Vidya Sagar
2019-04-08 18:29 ` Trent Piepho
2019-04-09 11:07 ` Vidya Sagar
2019-03-26 15:13 ` [PATCH 06/10] arm64: tegra: Add P2U and PCIe controller nodes to Tegra194 DT Vidya Sagar
2019-03-28 16:59 ` Thierry Reding
2019-04-01 12:37 ` Vidya Sagar
2019-03-26 15:13 ` [PATCH 07/10] arm64: tegra: Enable PCIe slots in P2972-0000 board Vidya Sagar
2019-03-26 15:13 ` [PATCH 08/10] phy: tegra: Add PCIe PIPE2UPHY support Vidya Sagar
2019-04-03 8:05 ` Kishon Vijay Abraham I
2019-04-03 10:45 ` Vidya Sagar
2019-03-26 15:13 ` [PATCH 09/10] PCI: tegra: Add Tegra194 PCIe support Vidya Sagar
2019-03-27 10:07 ` Jon Hunter
2019-03-29 20:52 ` Bjorn Helgaas
2019-04-02 7:17 ` Vidya Sagar
2019-04-02 14:14 ` Thierry Reding
2019-04-03 9:15 ` Vidya Sagar
2019-04-02 18:31 ` Bjorn Helgaas
2019-04-03 9:43 ` Vidya Sagar
2019-04-03 17:36 ` Bjorn Helgaas
2019-04-04 19:53 ` Vidya Sagar
2019-04-05 18:58 ` Bjorn Helgaas
2019-04-09 11:30 ` Vidya Sagar
2019-04-09 13:26 ` Bjorn Helgaas
2019-04-10 6:10 ` Vidya Sagar
2019-04-10 8:14 ` Liviu Dudau
2019-04-10 9:53 ` Vidya Sagar
2019-04-10 11:35 ` Liviu Dudau
2019-03-26 15:13 ` [PATCH 10/10] arm64: Add Tegra194 PCIe driver to defconfig Vidya Sagar
2019-03-27 10:08 ` Jon Hunter
2019-03-27 10:12 ` Vidya Sagar
2019-03-27 12:26 ` Jon Hunter
2019-03-28 8:19 ` Jisheng Zhang
2019-04-01 12:45 ` Vidya Sagar
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