Re: [PATCH V2] coresight-stm: support mmapping channel regions with mmio_addr

2016-06-21 Thread Mathieu Poirier
On 20 June 2016 at 20:24, Chunyan Zhang wrote: > CoreSight STM device allows direct mapping of the channel regions to > userspace for zero-copy writing. To support this ability, the STM > framework has provided a hook 'mmio_addr', this patch just implemented > this hook

Re: [PATCH V2] coresight-stm: support mmapping channel regions with mmio_addr

2016-06-21 Thread Mathieu Poirier
On 20 June 2016 at 20:24, Chunyan Zhang wrote: > CoreSight STM device allows direct mapping of the channel regions to > userspace for zero-copy writing. To support this ability, the STM > framework has provided a hook 'mmio_addr', this patch just implemented > this hook for CoreSight STM. > >

[PATCH V2] coresight-stm: support mmapping channel regions with mmio_addr

2016-06-20 Thread Chunyan Zhang
CoreSight STM device allows direct mapping of the channel regions to userspace for zero-copy writing. To support this ability, the STM framework has provided a hook 'mmio_addr', this patch just implemented this hook for CoreSight STM. This patch also added an item into 'channel_space' to save the

[PATCH V2] coresight-stm: support mmapping channel regions with mmio_addr

2016-06-20 Thread Chunyan Zhang
CoreSight STM device allows direct mapping of the channel regions to userspace for zero-copy writing. To support this ability, the STM framework has provided a hook 'mmio_addr', this patch just implemented this hook for CoreSight STM. This patch also added an item into 'channel_space' to save the