On Wednesday, October 28, 2015 03:50:45 PM Suravee Suthikulpanit wrote: > This patch series adds support to setup DMA coherency for PCI device using > the ACPI _CCA attribute. According to the ACPI spec, the _CCA attribute > is required for ARM64. Therefore, this patch is a pre-req for ACPI PCI > support for ARM64 which is currently in development. Also, this should > not affect other architectures that does not define > CONFIG_ACPI_CCA_REQUIRED, since the default value is coherent. > > In the process, this series also introduces enum dev_dma_attr and a set > of APIs to query device DMA attribute. These APIs replace the obsolete > device_dma_is_coherent(), and acpi_check_dma(). > > I have also included a patch from Jeremy posted here: > http://www.spinics.net/lists/linux-usb/msg128582.html > > This patch series is now rebased from: > https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next > > This patch series has been tested on AMD Seattle RevB platform. > The git tree containing tested code and pre-req patches is available here: > http://github.com/ssuthiku/linux.git pci-cca-v5 > > Changes from V4: (https://lkml.org/lkml/2015/10/21/535) > * Clean up from Hanjun, Bjorn, and Thomas review comments > * Rebased on top of Rafael's latest linux-next branch > * Added patch 7/9 to fix the pci_get_host_bridge_device leak > * Added Acked-by from Bjorn > * Added Reviewed-by from Hanjun > > Changes from V3: (https://lkml.org/lkml/2015/8/26/389) > * Clean up suggested by Bjorn > * Introduce enum dev_dma_attr > * Replace device_dma_is_coherent() and acpi_check_dma() with > new APIs. > > Changes from V2: (https://lkml.org/lkml/2015/8/25/549) > * Return -ENOSUPP instead of -1 (per Rafael's suggestion) > * Add WARN() when fail to setup DMA for PCI device when booting > ACPI (per Arnd's suggestion) > * Added Acked-by from Rob. > * Minor clean up > > Changes from V1: (https://lkml.org/lkml/2015/8/13/182) > * Include patch 1 from Jeremy to enable support for _CCA=0 > * Clean up acpi_check_dma() per Bjorn suggestions > * Split the original V1 patch into two patches (patch 3 and 4) > > Jeremy Linton (1): > ACPI: Honor ACPI _CCA attribute setting > > Suravee Suthikulpanit (8): > device property: Introducing enum dev_dma_attr > ACPI: Adding DMA Attribute APIs for ACPI Device > device property: Adding DMA Attribute APIs for Generic Devices > device property: ACPI: Make use of the new DMA Attribute APIs > device property: ACPI: Remove unused DMA APIs > of/pci: Fix pci_get_host_bridge_device leak > PCI: OF: Move of_pci_dma_configure() to pci_dma_configure() > PCI: ACPI: Add support for PCI device DMA coherency > > drivers/acpi/acpi_platform.c | 7 +++++- > drivers/acpi/glue.c | 8 +++--- > drivers/acpi/scan.c | 42 +++++++++++++++++++++++++++++++ > drivers/base/property.c | 32 +++++++++++++++++------ > drivers/crypto/ccp/ccp-platform.c | 15 ++++++++--- > drivers/net/ethernet/amd/xgbe/xgbe-main.c | 8 +++++- > drivers/of/of_pci.c | 20 --------------- > drivers/pci/probe.c | 33 ++++++++++++++++++++++-- > include/acpi/acpi_bus.h | 36 +++----------------------- > include/linux/acpi.h | 7 +++++- > include/linux/of_pci.h | 3 --- > include/linux/property.h | 10 +++++++- > 12 files changed, 144 insertions(+), 77 deletions(-) Queued up for v4.4, but I'll include it into my second pull request in the second half of the merge window. Thanks, Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
