On Fri, Apr 15, 2016 at 11:49 PM, Jon Masters <jcm@xxxxxxxxxx> wrote: > On 04/15/2016 01:06 PM, Tomasz Nowicki wrote: >> From the functionality point of view this series might be split into the >> following logic parts: >> 1. Necessary fixes as the preparation for using driver on ARM64. >> 2. New ECAM API and update for users of the pci-host-common API >> 3. Use new MCFG interface and implement generic ACPI based PCI host controller driver. >> 4. Enable above driver on ARM64 >> >> Patches has been built on top of 4.6-rc2 and can be found here: >> git@xxxxxxxxxx:semihalf-nowicki-tomasz/linux.git (pci-acpi-v6) >> >> This has been tested on Cavium ThunderX server. Any help in reviewing and >> testing is very appreciated. >> >> v5 -> v6 >> - dropped idea of x86 MMCONFIG code refactoring >> - integrated JC's patches which introduce new ECAM API: >> https://lkml.org/lkml/2016/4/11/907 >> git: https://github.com/jchandra-brcm/linux/ (arm64-acpi-pci-v3) >> - integrated Sinan's fix for releasing IO resources, see patch [06/13] >> - added ACPI support for ThunderX ECAM and PEM drivers >> - rebased to 4.6-rc2 > > JC: can you explicitly confirm that you're ok with letting Tomasz drive > this? We would like to see one driver. Either that is Tomasz, or > Lorenzo, or it is you. But we need to have one overall cooordinated > effort to get this enablement into upstream as quickly as possible. I have been concentrating on the ECAM code and ECAM based ACPI host controller, the rest of the code is from Tomasz original patchset. I am not happy with the way the ACPI quirk handling is done in Tomasz's current patchset. I believe that it has to be done in a separate patchset with another set of discussions. It introduces additional complexity and mixing that discussion with the ECAM one will not help in making progress. I hope things will be clearer when more maintainers chime in. When there is clarity on if the ECAM split is fine, I think we can look at how to drive the whole patchset forward, otherwise we are back to square one. > Some of the Enterprise folks are going to otherwise end up in a very > nasty situation of supporting the previous non-upstream patches for many > years, which is absolutely something we want to avoid... Not having ACPI/PCI support upstream is a huge problem for us too... JC. -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
