1. 24 9月, 2014 1 次提交
    • S
      soc: ti: add Keystone Navigator QMSS driver · 41f93af9
      Sandeep Nair 提交于
      The QMSS (Queue Manager Sub System) found on Keystone SOCs is one of
      the main hardware sub system which forms the backbone of the Keystone
      Multi-core Navigator. QMSS consist of queue managers, packed-data structure
      processors(PDSP), linking RAM, descriptor pools and infrastructure
      Packet DMA.
      
      The Queue Manager is a hardware module that is responsible for accelerating
      management of the packet queues. Packets are queued/de-queued by writing or
      reading descriptor address to a particular memory mapped location. The PDSPs
      perform QMSS related functions like accumulation, QoS, or event management.
      Linking RAM registers are used to link the descriptors which are stored in
      descriptor RAM. Descriptor RAM is configurable as internal or external memory.
      
      The QMSS driver manages the PDSP setups, linking RAM regions,
      queue pool management (allocation, push, pop and notify) and descriptor
      pool management. The specifics on the device tree bindings for
      QMSS can be found in:
      	Documentation/devicetree/bindings/soc/keystone-navigator-qmss.txt
      
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Kumar Gala <galak@codeaurora.org>
      Cc: Olof Johansson <olof@lixom.net>
      Cc: Arnd Bergmann <arnd@arndb.de>
      Cc: Grant Likely <grant.likely@linaro.org>
      Cc: Rob Herring <robh+dt@kernel.org>
      Cc: Mark Rutland <mark.rutland@arm.com>
      Signed-off-by: NSandeep Nair <sandeep_n@ti.com>
      Signed-off-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>
      41f93af9
  2. 16 8月, 2014 39 次提交