Re: [PATCH v8 2/3] tty: hvc: pass DMA capable memory to put_chars()

2021-09-18 Thread Xianting Tian
thanks Greg, I will submit v9 patch for reviewing. Before, I was waiting for a new reply:( 在 2021/9/18 下午8:40, Greg KH 写道: On Sat, Sep 18, 2021 at 08:32:01PM +0800, Xianting Tian wrote: hi Will you consider to continue the disscussion of this patch? thanks I do not see a newer version of thi

Re: [PATCH v8 2/3] tty: hvc: pass DMA capable memory to put_chars()

2021-09-18 Thread Greg KH
On Sat, Sep 18, 2021 at 08:32:01PM +0800, Xianting Tian wrote: > hi > > Will you consider to continue the disscussion of this patch? thanks I do not see a newer version of this series. thanks, greg k-h

Re: [PATCH v8 2/3] tty: hvc: pass DMA capable memory to put_chars()

2021-09-18 Thread Xianting Tian
hi Will you consider to continue the disscussion of this patch? thanks 在 2021/8/20 下午4:43, Xianting TIan 写道: 在 2021/8/20 下午2:49, Daniel Axtens 写道: Xianting Tian writes: As well known, hvc backend driver(eg, virtio-console) can register its operations to hvc framework. The operations can co

Re: [PATCH v8 2/3] tty: hvc: pass DMA capable memory to put_chars()

2021-08-20 Thread Michael Ellerman
Daniel Axtens writes: > Xianting Tian writes: > >> As well known, hvc backend driver(eg, virtio-console) can register its >> operations to hvc framework. The operations can contain put_chars(), >> get_chars() and so on. >> >> Some hvc backend may do dma in its operations. eg, put_chars() of >> vi

Re: [PATCH v8 2/3] tty: hvc: pass DMA capable memory to put_chars()

2021-08-20 Thread Xianting TIan
在 2021/8/20 下午2:49, Daniel Axtens 写道: Xianting Tian writes: As well known, hvc backend driver(eg, virtio-console) can register its operations to hvc framework. The operations can contain put_chars(), get_chars() and so on. Some hvc backend may do dma in its operations. eg, put_chars() of vi

Re: [PATCH v8 2/3] tty: hvc: pass DMA capable memory to put_chars()

2021-08-19 Thread Daniel Axtens
Xianting Tian writes: > As well known, hvc backend driver(eg, virtio-console) can register its > operations to hvc framework. The operations can contain put_chars(), > get_chars() and so on. > > Some hvc backend may do dma in its operations. eg, put_chars() of > virtio-console. But in the code of

Re: [PATCH v8 2/3] tty: hvc: pass DMA capable memory to put_chars()

2021-08-18 Thread kernel test robot
Hi Xianting, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on tty/tty-testing] [also build test WARNING on char-misc/char-misc-testing soc/for-next v5.14-rc6 next-20210818] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitti

Re: [PATCH v8 2/3] tty: hvc: pass DMA capable memory to put_chars()

2021-08-18 Thread kernel test robot
Hi Xianting, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on tty/tty-testing] [also build test WARNING on char-misc/char-misc-testing soc/for-next v5.14-rc6 next-20210818] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitti

[PATCH v8 2/3] tty: hvc: pass DMA capable memory to put_chars()

2021-08-18 Thread Xianting Tian
As well known, hvc backend driver(eg, virtio-console) can register its operations to hvc framework. The operations can contain put_chars(), get_chars() and so on. Some hvc backend may do dma in its operations. eg, put_chars() of virtio-console. But in the code of hvc framework, it may pass DMA inc