The Qualcomm Technologies HIDMA device has been designed to support virtualization technology. The driver has been divided into two to follow the hardware design. 1. HIDMA Management driver 2. HIDMA Channel driver Each HIDMA HW consists of multiple channels. These channels share some set of common parameters. These parameters are initialized by the management driver during power up. Same management driver is used for monitoring the execution of the channels. Management driver can change the performance behavior dynamically such as bandwidth allocation and prioritization in the future. The management driver is executed in host context and is the main management entity for all channels provided by the device. ------------------------ What's new ------------------------ - VFIO Reset driver - More documentation in device-tree binding. - Removed event-channel parameter ------------------------ Git repos ------------------------ QEMU Support https://www.codeaurora.org/cgit/quic/qemu/qemu/log/?h=v2.5.0-sriov ------------------------ History of Changes ------------------------ Creating a QCOM directory for all QCOM DMA source files. Changes from V12: (https://lkml.org/lkml/2016/1/11/525) * none dma: hidma: Add Device Tree Binding Changes from V12: (https://lkml.org/lkml/2016/1/11/522) * s/driver/binding/ * s/hypervisor/host/ * add iommu node required. * removed the flexibility to choose event channel. Will use HW defaults * instead. channel-index parameter is removed. dma: add Qualcomm Technologies HIDMA management driver Changes from V12: (https://lkml.org/lkml/2016/1/11/518) * s/hypervisor/host/ dma: add Qualcomm Technologies HIDMA channel driver Changes from V12: (https://lkml.org/lkml/2016/1/11/523) * none dma: qcom_hidma: implement lower level hardware interface Changes from V12: (https://lkml.org/lkml/2016/1/11/519) * none dma: qcom_hidma: add debugfs hooks Changes from V12: (https://lkml.org/lkml/2016/1/11/521) * none dma: qcom_hidma: add support for object hierarchy Changes from V12: (https://lkml.org/lkml/2016/1/11/520) * none Sinan Kaya (10): dma: qcom_bam_dma: move to qcom directory dma: hidma: Add Device Tree binding dma: add Qualcomm Technologies HIDMA management driver dma: add Qualcomm Technologies HIDMA channel driver dma: qcom_hidma: implement lower level hardware interface dma: qcom_hidma: add debugfs hooks dma: qcom_hidma: add support for object hierarchy dma: qcom_hidma: read the channel id from HW vfio, platform: add support for ACPI while detecting the reset driver vfio, platform: add QTI HIDMA reset driver Documentation/ABI/testing/sysfs-platform-hidma | 9 + .../ABI/testing/sysfs-platform-hidma-mgmt | 97 +++ .../devicetree/bindings/dma/qcom_hidma_mgmt.txt | 89 ++ drivers/dma/Kconfig | 11 +- drivers/dma/Makefile | 2 +- drivers/dma/qcom/Kconfig | 29 + drivers/dma/qcom/Makefile | 5 + drivers/dma/{qcom_bam_dma.c => qcom/bam_dma.c} | 4 +- drivers/dma/qcom/hidma.c | 747 +++++++++++++++++ drivers/dma/qcom/hidma.h | 162 ++++ drivers/dma/qcom/hidma_dbg.c | 219 +++++ drivers/dma/qcom/hidma_ll.c | 927 +++++++++++++++++++++ drivers/dma/qcom/hidma_mgmt.c | 400 +++++++++ drivers/dma/qcom/hidma_mgmt.h | 39 + drivers/dma/qcom/hidma_mgmt_sys.c | 295 +++++++ drivers/vfio/platform/reset/Kconfig | 9 + drivers/vfio/platform/reset/Makefile | 2 + .../vfio/platform/reset/vfio_platform_amdxgbe.c | 3 +- .../platform/reset/vfio_platform_calxedaxgmac.c | 3 +- .../vfio/platform/reset/vfio_platform_qcomhidma.c | 99 +++ drivers/vfio/platform/vfio_platform_common.c | 80 +- drivers/vfio/platform/vfio_platform_private.h | 41 +- 22 files changed, 3229 insertions(+), 43 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-platform-hidma create mode 100644 Documentation/ABI/testing/sysfs-platform-hidma-mgmt create mode 100644 Documentation/devicetree/bindings/dma/qcom_hidma_mgmt.txt create mode 100644 drivers/dma/qcom/Kconfig create mode 100644 drivers/dma/qcom/Makefile rename drivers/dma/{qcom_bam_dma.c => qcom/bam_dma.c} (99%) create mode 100644 drivers/dma/qcom/hidma.c create mode 100644 drivers/dma/qcom/hidma.h create mode 100644 drivers/dma/qcom/hidma_dbg.c create mode 100644 drivers/dma/qcom/hidma_ll.c create mode 100644 drivers/dma/qcom/hidma_mgmt.c create mode 100644 drivers/dma/qcom/hidma_mgmt.h create mode 100644 drivers/dma/qcom/hidma_mgmt_sys.c create mode 100644 drivers/vfio/platform/reset/vfio_platform_qcomhidma.c -- 1.8.2.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
