Re: [PATCH v4 23/24] fpga: dfl: afu: add user afu sub feature support

2018-03-21 Thread Wu Hao
On Wed, Mar 21, 2018 at 06:50:54PM -0500, Alan Tull wrote: > On Tue, Mar 20, 2018 at 2:10 AM, Wu Hao wrote: > > >> > +static int afu_mmap(struct file *filp, struct vm_area_struct *vma) > >> > +{ > >> > + struct fpga_afu_region region; > >> > + struct platform_device *pdev = filp->priv

Re: [PATCH v4 23/24] fpga: dfl: afu: add user afu sub feature support

2018-03-21 Thread Alan Tull
On Tue, Mar 20, 2018 at 2:10 AM, Wu Hao wrote: >> > +static int afu_mmap(struct file *filp, struct vm_area_struct *vma) >> > +{ >> > + struct fpga_afu_region region; >> > + struct platform_device *pdev = filp->private_data; >> > + struct feature_platform_data *pdata = dev_get_pl

Re: [PATCH v4 23/24] fpga: dfl: afu: add user afu sub feature support

2018-03-20 Thread Wu Hao
On Tue, Mar 20, 2018 at 01:17:14PM -0500, Alan Tull wrote: > On Tue, Mar 20, 2018 at 2:10 AM, Wu Hao wrote: > > On Mon, Mar 19, 2018 at 03:10:28PM -0500, Alan Tull wrote: > >> On Tue, Feb 13, 2018 at 3:24 AM, Wu Hao wrote: > >> > >> Hi Hao, > >> > >> > From: Xiao Guangrong > >> > > >> > User Acc

Re: [PATCH v4 23/24] fpga: dfl: afu: add user afu sub feature support

2018-03-20 Thread Alan Tull
On Tue, Mar 20, 2018 at 2:10 AM, Wu Hao wrote: > On Mon, Mar 19, 2018 at 03:10:28PM -0500, Alan Tull wrote: >> On Tue, Feb 13, 2018 at 3:24 AM, Wu Hao wrote: >> >> Hi Hao, >> >> > From: Xiao Guangrong >> > >> > User Accelerated Function Unit sub feature exposes the MMIO region of >> >> Is it 'us

Re: [PATCH v4 23/24] fpga: dfl: afu: add user afu sub feature support

2018-03-20 Thread Wu Hao
On Mon, Mar 19, 2018 at 03:10:28PM -0500, Alan Tull wrote: > On Tue, Feb 13, 2018 at 3:24 AM, Wu Hao wrote: > > Hi Hao, > > > From: Xiao Guangrong > > > > User Accelerated Function Unit sub feature exposes the MMIO region of > > Is it 'user accelerated'? I think it is the Accelerator interfac

Re: [PATCH v4 23/24] fpga: dfl: afu: add user afu sub feature support

2018-03-19 Thread Alan Tull
On Tue, Feb 13, 2018 at 3:24 AM, Wu Hao wrote: Hi Hao, > From: Xiao Guangrong > > User Accelerated Function Unit sub feature exposes the MMIO region of Is it 'user accelerated'? I think it is the Accelerator interface. > the AFU. After valid green bitstream (GBS) is programmed and port is W

[PATCH v4 23/24] fpga: dfl: afu: add user afu sub feature support

2018-02-13 Thread Wu Hao
From: Xiao Guangrong User Accelerated Function Unit sub feature exposes the MMIO region of the AFU. After valid green bitstream (GBS) is programmed and port is enabled, then this MMIO region could be accessed. This patch adds support to enumerate the AFU MMIO region and expose it to userspace vi