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 V3: (https://lkml.org/lkml/2015/11/7/256) * use git format-patch -M to reduce the difference Changes from V3: (https://lkml.org/lkml/2015/11/7/257) * add missing EXPORT_SYMBOL_GPL for hidma_mgmt_init_sys and hidma_mgmt_setup * simplify bitwise set and clear statements Changes from V3: (https://lkml.org/lkml/2015/11/7/258) * none Changes from V3: (https://lkml.org/lkml/2015/11/7/259) * remove return code on hidma_ll_start and hidma_ll_queue_request * remove the checks after platform_get_resource. * reorder the pm calls in failure path. * simplify bit clear and set operations. * correct device tree documentation compatible string * clean unnecessary initializations and use unsigned int for iterator types Sinan Kaya (4): dma: qcom_bam_dma: move to qcom directory dma: add Qualcomm Technologies HIDMA management driver dmaselftest: add memcpy selftest support functions dma: add Qualcomm Technologies HIDMA channel driver .../devicetree/bindings/dma/qcom_hidma.txt | 18 + .../devicetree/bindings/dma/qcom_hidma_mgmt.txt | 61 ++ drivers/dma/Kconfig | 11 +- drivers/dma/Makefile | 2 +- drivers/dma/dmaengine.h | 2 + drivers/dma/dmaselftest.c | 638 ++++++++++++++ drivers/dma/qcom/Kconfig | 29 + drivers/dma/qcom/Makefile | 4 + drivers/dma/{qcom_bam_dma.c => qcom/bam_dma.c} | 6 +- drivers/dma/qcom/hidma.c | 736 ++++++++++++++++ drivers/dma/qcom/hidma.h | 157 ++++ drivers/dma/qcom/hidma_dbg.c | 225 +++++ drivers/dma/qcom/hidma_ll.c | 939 +++++++++++++++++++++ drivers/dma/qcom/hidma_mgmt.c | 312 +++++++ drivers/dma/qcom/hidma_mgmt.h | 38 + drivers/dma/qcom/hidma_mgmt_sys.c | 231 +++++ 16 files changed, 3396 insertions(+), 13 deletions(-) create mode 100644 Documentation/devicetree/bindings/dma/qcom_hidma.txt create mode 100644 Documentation/devicetree/bindings/dma/qcom_hidma_mgmt.txt create mode 100644 drivers/dma/dmaselftest.c 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 linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
