Hi Marek, >On 2017-01-23 17:18, Sricharan R wrote: >> This series calls the dma ops configuration for the devices >> at a generic place so that it works for all busses. >> The dma_configure_ops for a device is now called during >> the device_attach callback just before the probe of the >> bus/driver is called. Similarly dma_deconfigure is called during >> device/driver_detach path. >> >> pci_bus_add_devices (platform/amba)(_device_create/driver_register) >> | | >> pci_bus_add_device (device_add/driver_register) >> | | >> device_attach device_initial_probe >> | | >> __device_attach_driver __device_attach_driver >> | >> driver_probe_device >> | >> really_probe >> | >> dma_configure >> >> Similarly on the device/driver_unregister path __device_release_driver is >> called which inturn calls dma_deconfigure. >> >> Took the reworked patches [2] from Robin's branch and >> rebased on top of Lorenzo's ACPI IORT ARM support series [3]. >> >> * Tested with platform and pci devices for probe deferral >> and reprobe on arm64 based platform. >> * Need help for testing with ACPI. > >Once again: > >Tested-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> > >Works fine on Exynos machines (both, ARM and ARM64 based). This patchset is >urgently needed as more and more stuff depends on it and cannot be easily >workarounded without nasty hacks (for example pending runtime PM changes >for clocks and power domains integration for Exynos 5433). > Ok, Thanks for the testing once again. >Is there a chance to have it merged to v4.11? > Ya, hoping that this time it would get through. Regards, Sricharan >> Previous post of this series [6]. >> >> [V7] >> * Updated the subject and commit log for patch #6 as per >> comments from Lorenzo. No functional changes. >> >> [V6] >> * Fixed a bug in dma_configure function pointed out by >> Robin. >> * Reordered the patches as per comments from Robin and >> Lorenzo. >> * Added Tags. >> >> [V5] >> * Reworked the pci configuration code hanging outside and >> pushed it to dma_configure as in PATCH#5,6,7. >> Also added a couple of patches that Lorenzo provided for >> correcting the Probe deferring mechanism in case of >> ACPI devices from here [5]. >> >> [V4] >> * Took the reworked patches [2] from Robin's branch and >> rebased on top of Lorenzo's ACPI IORT ARM support series [3]. >> >> * Added the patches for moving the dma ops configuration of >> acpi based devices to probe time as well. >> [V3] >> * Removed the patch to split dma_masks/dma_ops configuration >> separately based on review comments that both masks and ops are >> required only during the device probe time. >> >> * Reworked the series based on Generic DT bindings series. >> >> * Added call to iommu's remove_device in the cleanup path for arm and >> arm64. >> >> * Removed the notifier trick in arm64 to handle early device >> registration. >> >> * Added reset of dma_ops in cleanup path for arm based on comments. >> >> * Fixed the pci_iommu_configure path and tested with PCI device as >> well. >> >> * Fixed a bug to return the correct iommu_ops from patch 7 [4] in >> last post. >> >> * Fixed few other cosmetic comments. >> >> [V2] >> * Updated the Initial post to call dma_configure/deconfigure from >> generic code >> >> * Added iommu add_device callback from of_iommu_configure path >> >> [V1] >> * Initial post from Laurent Pinchart [1] >> >> [1] http://lists.linuxfoundation.org/pipermail/iommu/2015-May/013016.html >> [2] http://www.linux-arm.org/git?p=linux-rm.git;a=shortlog;h=refs/heads/iommu/defer >> [3] https://lkml.org/lkml/2016/11/21/141 >> [4] https://www.mail-archive.com/iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx/msg13940.html >> [5] git://git.kernel.org/pub/scm/linux/kernel/git/lpieralisi/linux.git iommu/probe-deferral >> [6] https://www.spinics.net/lists/arm-kernel/msg556546.html >> >> Laurent Pinchart (3): >> of: dma: Move range size workaround to of_dma_get_range() >> of: dma: Make of_dma_deconfigure() public >> iommu: of: Handle IOMMU lookup failure with deferred probing or error >> >> Lorenzo Pieralisi (2): >> ACPI/IORT: Add function to check SMMUs drivers presence >> ACPI/IORT: Remove linker section for IORT entries probing >> >> Robin Murphy (3): >> iommu/of: Refactor of_iommu_configure() for error handling >> iommu/of: Prepare for deferred IOMMU configuration >> iommu/arm-smmu: Clean up early-probing workarounds >> >> Sricharan R (3): >> of/acpi: Configure dma operations at probe time for platform/amba/pci bus devices >> drivers: acpi: Handle IOMMU lookup failure with deferred probing or >> error >> arm64: dma-mapping: Remove the notifier trick to handle early setting >> of dma_ops >> >> arch/arm64/mm/dma-mapping.c | 132 ++++---------------------------------- >> drivers/acpi/arm64/iort.c | 40 +++++++++++- >> drivers/acpi/glue.c | 5 -- >> drivers/acpi/scan.c | 7 +- >> drivers/base/dd.c | 9 +++ >> drivers/base/dma-mapping.c | 41 ++++++++++++ >> drivers/iommu/arm-smmu-v3.c | 46 +------------ >> drivers/iommu/arm-smmu.c | 58 +++-------------- >> drivers/iommu/of_iommu.c | 114 +++++++++++++++++++++++--------- >> drivers/of/address.c | 20 +++++- >> drivers/of/device.c | 36 ++++++----- >> drivers/of/platform.c | 10 +-- >> drivers/pci/probe.c | 28 -------- >> include/acpi/acpi_bus.h | 2 +- >> include/asm-generic/vmlinux.lds.h | 1 - >> include/linux/acpi.h | 7 +- >> include/linux/acpi_iort.h | 3 - >> include/linux/dma-mapping.h | 3 + >> include/linux/of_device.h | 10 ++- >> 19 files changed, 252 insertions(+), 320 deletions(-) >> > >Best regards >-- >Marek Szyprowski, PhD >Samsung R&D Institute Poland > >-- >To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in >the body of a message to majordomo@xxxxxxxxxxxxxxx >More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
