dma: add Qualcomm Technologies HIDMA driver 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 ------------------------ - Coding style corrections. - Correct OF node lookup. ------------------------ Git repos ------------------------ QEMU Support https://www.codeaurora.org/cgit/quic/qemu/qemu/log/?h=v2.5.0-sriov ------------------------ History of Changes ------------------------ dma: qcom_hidma: add support for object hierarchy Changes from V14: (https://lkml.org/lkml/2016/2/4/1089) * use correct node (child) to read dma attribute. dma: qcom_hidma: implement lower level hardware interface Changes from V14: (https://lkml.org/lkml/2016/2/4/1086) * renamed constants as HIDMA_xyz dma: qcom_hidma: add support for object hierarchy Changes from V14: (https://lkml.org/lkml/2016/2/4/1089) * renamed constants as HIDMA_xyz Sinan Kaya (4): 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 Documentation/ABI/testing/sysfs-platform-hidma | 9 + .../devicetree/bindings/dma/qcom_hidma_mgmt.txt | 3 - drivers/dma/qcom/*Backtrace* | 4 + drivers/dma/qcom/Makefile | 2 + drivers/dma/qcom/hidma.c | 81 +- drivers/dma/qcom/hidma.h | 20 +- drivers/dma/qcom/hidma_dbg.c | 219 +++++ drivers/dma/qcom/hidma_ll.c | 918 +++++++++++++++++++++ drivers/dma/qcom/hidma_mgmt.c | 111 ++- 9 files changed, 1313 insertions(+), 54 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-platform-hidma create mode 100644 drivers/dma/qcom/*Backtrace* create mode 100644 drivers/dma/qcom/hidma_dbg.c create mode 100644 drivers/dma/qcom/hidma_ll.c -- 1.8.2.1 -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
