Re: [PATCH RFC] media: em28xx: don't use coherent buffer for DMA transfers

Em Wed, 28 Feb 2018 09:49:12 -0500 Devin Heitmueller escreveu: > On Tue, Feb 27, 2018 at 12:42 PM, Mauro Carvalho Chehab > wrote: > > While coherent memory is cheap on x86, it has problems on > > arm. So, stop using it. > > > >

Re: [PATCH RFC] media: em28xx: don't use coherent buffer for DMA transfers

On Tue, Feb 27, 2018 at 12:42 PM, Mauro Carvalho Chehab wrote: > While coherent memory is cheap on x86, it has problems on > arm. So, stop using it. > > Signed-off-by: Mauro Carvalho Chehab > --- > > I wrote this patch in order to check if this

[PATCH RFC] media: em28xx: don't use coherent buffer for DMA transfers

While coherent memory is cheap on x86, it has problems on arm. So, stop using it. Signed-off-by: Mauro Carvalho Chehab --- I wrote this patch in order to check if this would make things better for ISOCH transfers on Raspberry Pi3. It didn't. Yet, keep using coherent