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 hypervisor context and is the main management entity for all channels provided by the device. Changes from V9: (https://lkml.org/lkml/2015/12/11/584) * none Changes from V9: (https://lkml.org/lkml/2015/12/11/585) * split device tree documentation from code * correct syntax error in device tree documentation * describe max value of the weight * document that array and weight attributes are array * add object hierarchy support * move sysfs priority and weight files into chanops directory. Changes from V9: (https://lkml.org/lkml/2015/12/11/588) * add object hierarchy support * rename event-channel to channel-index * create a sysfs entry for channel-index * add pm_runtime_get/sync around hidma_ll_isenabled Changes from V9: (https://lkml.org/lkml/2015/12/11/586) * rename TRE chidx to idx to not mix with the channel id. Changes from V9: (https://lkml.org/lkml/2015/12/11/587) * none Sinan Kaya (7): dma: qcom_bam_dma: move to qcom directory dma: hidma: Add Device Tree support 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 Documentation/ABI/testing/sysfs-platform-hidma | 9 + .../ABI/testing/sysfs-platform-hidma-mgmt | 97 +++ .../devicetree/bindings/dma/qcom_hidma_mgmt.txt | 79 ++ drivers/dma/Kconfig | 11 +- drivers/dma/Makefile | 2 +- drivers/dma/qcom/Kconfig | 29 + drivers/dma/qcom/Makefile | 4 + drivers/dma/{qcom_bam_dma.c => qcom/bam_dma.c} | 4 +- drivers/dma/qcom/hidma.c | 868 +++++++++++++++++++ drivers/dma/qcom/hidma.h | 163 ++++ drivers/dma/qcom/hidma_dbg.c | 219 +++++ drivers/dma/qcom/hidma_ll.c | 927 +++++++++++++++++++++ drivers/dma/qcom/hidma_mgmt.c | 317 +++++++ drivers/dma/qcom/hidma_mgmt.h | 39 + drivers/dma/qcom/hidma_mgmt_sys.c | 295 +++++++ 15 files changed, 3051 insertions(+), 12 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 -- Qualcomm Technologies, Inc. on behalf of Qualcomm Innovation Center, Inc. Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project -- 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
