On Fri, Jan 22, 2021 at 07:33:40PM +0800, Zhou Wang wrote:
> >> +struct uacce_pin_address {
> >> + unsigned long addr;
> >> + unsigned long size;
> >
> > These are not valid ioctl structure members for crossing the user/kernel
> > boundry. Please make them work properly (i.e. use __u64 and frie
On 2021/1/21 17:44, Greg Kroah-Hartman wrote:
> On Thu, Jan 21, 2021 at 05:09:14PM +0800, Zhou Wang wrote:
>> When IO page fault happens, DMA performance will be affected. Pin user page
>> can avoid IO page fault, this patch introduces a new char device named
>> /dev/uacce_ctrl to help to maintain
Hi Zhou,
I love your patch! Yet something to improve:
[auto build test ERROR on char-misc/char-misc-testing]
[also build test ERROR on soc/for-next linux/master linus/master v5.11-rc4
next-20210121]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch
Hi Zhou,
I love your patch! Perhaps something to improve:
[auto build test WARNING on char-misc/char-misc-testing]
[also build test WARNING on soc/for-next linux/master linus/master v5.11-rc4
next-20210121]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitti
> Cc: Wangzhou (B) ; Zhangfei Gao
> > ; Arnd Bergmann ;
> > linux-accelerat...@lists.ozlabs.org; linux-kernel@vger.kernel.org;
> > chensihang (A)
> > Subject: Re: [PATCH] uacce: Add uacce_ctrl misc device
> >
> > On Thu, Jan 21, 2021 at 10:18:24AM +, So
gfei Gao ; Arnd Bergmann ;
> > linux-accelerat...@lists.ozlabs.org; linux-kernel@vger.kernel.org;
> > chensihang (A)
> > Subject: Re: [PATCH] uacce: Add uacce_ctrl misc device
> >
> > On Thu, Jan 21, 2021 at 05:09:14PM +0800, Zhou Wang wrote:
> > > When IO
ernel@vger.kernel.org;
> chensihang (A)
> Subject: Re: [PATCH] uacce: Add uacce_ctrl misc device
>
> On Thu, Jan 21, 2021 at 10:18:24AM +, Song Bao Hua (Barry Song) wrote:
> >
> >
> > > -Original Message-
> > > From: Greg Kroah-Hartman [mailto:gre...
Hi Zhou,
I love your patch! Perhaps something to improve:
[auto build test WARNING on char-misc/char-misc-testing]
[also build test WARNING on soc/for-next linux/master linus/master v5.11-rc4
next-20210120]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitti
Hi Zhou,
I love your patch! Perhaps something to improve:
[auto build test WARNING on char-misc/char-misc-testing]
[also build test WARNING on soc/for-next linux/master linus/master v5.11-rc4
next-20210120]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitti
ng (A)
> Subject: Re: [PATCH] uacce: Add uacce_ctrl misc device
>
> On Thu, Jan 21, 2021 at 05:09:14PM +0800, Zhou Wang wrote:
> > When IO page fault happens, DMA performance will be affected. Pin user page
> > can avoid IO page fault, this patch introduces a new char device nam
On Thu, Jan 21, 2021 at 05:09:14PM +0800, Zhou Wang wrote:
> When IO page fault happens, DMA performance will be affected. Pin user page
> can avoid IO page fault, this patch introduces a new char device named
> /dev/uacce_ctrl to help to maintain pin/unpin pages. User space can do
> pin/unpin page
On Thu, Jan 21, 2021 at 05:09:14PM +0800, Zhou Wang wrote:
> When IO page fault happens, DMA performance will be affected. Pin user page
> can avoid IO page fault, this patch introduces a new char device named
> /dev/uacce_ctrl to help to maintain pin/unpin pages. User space can do
> pin/unpin page
When IO page fault happens, DMA performance will be affected. Pin user page
can avoid IO page fault, this patch introduces a new char device named
/dev/uacce_ctrl to help to maintain pin/unpin pages. User space can do
pin/unpin pages by ioctls of an open file of /dev/uacce_ctrl, all pinned
pages un
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