mainlining shenanigans
41b464ef10
It's suggested to fix the domain number for all PCIe host bridges or not set it at all. However, if we don't fix it, the domain number will keep increasing ever when doing unbind/bind test, which makes the bus tree of lspci introduce pointless domain hierarchy. More investigation shows the domain number allocater of PCI doesn't consider the conflict of domain number if we have more than one PCIe port belonging to different domains. So once unbinding/binding one of them and keep others would going to overflow the domain number so that finally it will share the same domain as others, but actually it shouldn't. We should fix the domain number for PCIe or invent new indexing ID mechanisms. However it isn't worth inventing new indexing ID mechanisms personlly, Just look at how other Root Complex drivers did, for instance, broadcom and qualcomm, it seems fixing the domain number was more popular. So this patch gonna fix the domain number of PCIe for rk3399. Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Reviewed-by: Brian Norris <briannorris@chromium.org> Tested-by: Brian Norris <briannorris@chromium.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de> |
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| README | ||
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.