Marc, do you have any comments on this series? Please take a look at it.
There is also this one on top: https://patchwork.kernel.org/cover/10685025/ Both series fix ITS table allocation for 4k page size and make the upstream kernel working without the need of additional patches. Thanks, -Robert On 28.11.18 15:43:02, Richter, Robert wrote: > This patch series is a rework of the gic-v3-its initialization. It is > in preparation of a further series that uses CMA memory allocation for > ITS tables. For this the CMA framework must be available and thus ITS > needs to be initialized after the arch_initcalls. This requires two > major reworks. > > First we must remove all irq domain init order dependencies (patches > #1-#5), second the ITS initialization must be split into an early > probe and a later init part (patches #6-#10). > > Patch #1 introduces a new interface to request an irq domain, see the > patch description for details. In patches #2-#5 all ITS related irq > domains are converted to use the new interface. There are no order > dependencies for parent and client irq domain initialization anymore > which allows us to initialize all ITS irq domains in the same initcall > (moving to the later subsys_initcall). Note that I do not have fsl > hardware available, the code should work, but is only carefully > reviewed and compile tested, please test on that hardware. > > The remaining patches #6-#10 are an incremental rework of the ITS > initialization, basically splitting probe and init (patch #7) and > separating it from gic-v3 code (patch #8). Patches #9 and #10 change > initcall levels for various drivers. > > Patches have been tested with Cavium ThunderX and ThunderX2. I have an > implementation of CMA ITS table allocation on top of this series > available, I will send out patches for this in a couple of days. > > v2: > * fix check for domain match in irq_domain_handle_requests() > * add comment that describes this check in irq_domain_handle_ > requests() > > Robert Richter (10): > irqdomain: Add interface to request an irq domain > irqchip/gic-v3-its-platform-msi: Remove domain init order dependencies > irqchip/irq-gic-v3-its-pci-msi: Remove domain init order dependencies > irqchip/irq-gic-v3-its-fsl-mc-msi: Remove domain init order > dependencies > fsl-mc/dprc-driver: Remove domain init order dependencies > irqchip/gic-v3-its: Initialize its nodes in probe order > irqchip/gic-v3-its: Split probing from its node initialization > irqchip/gic-v3-its: Decouple its initialization from gic > irqchip/gic-v3-its: Initialize its nodes later > irqchip/gic-v3-its: Initialize MSIs with subsys_initcalls > > drivers/bus/fsl-mc/dprc-driver.c | 41 +++++++ > drivers/bus/fsl-mc/fsl-mc-msi.c | 6 +- > drivers/irqchip/irq-gic-v3-its-fsl-mc-msi.c | 49 +++++--- > drivers/irqchip/irq-gic-v3-its-pci-msi.c | 68 ++++++----- > drivers/irqchip/irq-gic-v3-its-platform-msi.c | 56 +++++++-- > drivers/irqchip/irq-gic-v3-its.c | 160 ++++++++++++++++--------- > drivers/irqchip/irq-gic-v3.c | 12 +- > include/linux/cpuhotplug.h | 1 + > include/linux/irqchip/arm-gic-v3.h | 5 +- > include/linux/irqdomain.h | 15 +++ > kernel/irq/irqdomain.c | 163 > ++++++++++++++++++++++++++ > 11 files changed, 446 insertions(+), 130 deletions(-) > > -- > 2.11.0 >