[PATCH v7 3/5] dma-buf: Add ioctls to allow userspace to flush

On Thu, Feb 11, 2016 at 07:19:45PM +0100, David Herrmann wrote: > Hi > > On Thu, Feb 11, 2016 at 7:08 PM, Ville Syrjälä > wrote: > > On Thu, Feb 11, 2016 at 03:54:38PM -0200, Tiago Vignatti wrote: > >> > >> Thanks for reviewing, David. Please take a look in my comments in-line. > >> > >> > >> O

[PATCH v7 3/5] dma-buf: Add ioctls to allow userspace to flush

On Thu, Feb 11, 2016 at 03:54:38PM -0200, Tiago Vignatti wrote: > > Thanks for reviewing, David. Please take a look in my comments in-line. > > > On 02/09/2016 07:26 AM, David Herrmann wrote: > > > > On Tue, Dec 22, 2015 at 10:36 PM, Tiago Vignatti > > wrote: > >> From: Daniel Vetter > >> + >

[PATCH v7 3/5] dma-buf: Add ioctls to allow userspace to flush

Hi On Thu, Feb 11, 2016 at 7:08 PM, Ville Syrjälä wrote: > On Thu, Feb 11, 2016 at 03:54:38PM -0200, Tiago Vignatti wrote: >> >> Thanks for reviewing, David. Please take a look in my comments in-line. >> >> >> On 02/09/2016 07:26 AM, David Herrmann wrote: >> > >> > On Tue, Dec 22, 2015 at 10:36

[PATCH v7 3/5] dma-buf: Add ioctls to allow userspace to flush

Hi On Thu, Feb 11, 2016 at 6:54 PM, Tiago Vignatti wrote: > On 02/09/2016 07:26 AM, David Herrmann wrote: >>> + >>> + switch (cmd) { >>> + case DMA_BUF_IOCTL_SYNC: >>> + if (copy_from_user(&sync, (void __user *) arg, >>> sizeof(sync))) >>> + return

[PATCH v7 3/5] dma-buf: Add ioctls to allow userspace to flush

Thanks for reviewing, David. Please take a look in my comments in-line. On 02/09/2016 07:26 AM, David Herrmann wrote: > > On Tue, Dec 22, 2015 at 10:36 PM, Tiago Vignatti > wrote: >> From: Daniel Vetter >> >> The userspace might need some sort of cache coherency management e.g. when >> CPU >>

[PATCH v7 3/5] dma-buf: Add ioctls to allow userspace to flush

On Thu, Feb 11, 2016 at 12:54 PM, Tiago Vignatti wrote: > > Thanks for reviewing, David. Please take a look in my comments in-line. > > > On 02/09/2016 07:26 AM, David Herrmann wrote: >> >> >> On Tue, Dec 22, 2015 at 10:36 PM, Tiago Vignatti >> wrote: >>> >>> From: Daniel Vetter >>> >>> The user

[PATCH v7 3/5] dma-buf: Add ioctls to allow userspace to flush

On Tue, Feb 09, 2016 at 11:20:20AM +0100, Daniel Vetter wrote: > On Tue, Feb 09, 2016 at 10:26:25AM +0100, David Herrmann wrote: > > Hi > > > > On Tue, Dec 22, 2015 at 10:36 PM, Tiago Vignatti > > wrote: > > > From: Daniel Vetter > > > > > > The userspace might need some sort of cache coherency

[PATCH v7 3/5] dma-buf: Add ioctls to allow userspace to flush

On Tue, Feb 09, 2016 at 10:26:25AM +0100, David Herrmann wrote: > Hi > > On Tue, Dec 22, 2015 at 10:36 PM, Tiago Vignatti > wrote: > > From: Daniel Vetter > > > > The userspace might need some sort of cache coherency management e.g. when > > CPU > > and GPU domains are being accessed through dm

[PATCH v7 3/5] dma-buf: Add ioctls to allow userspace to flush

Hi On Tue, Dec 22, 2015 at 10:36 PM, Tiago Vignatti wrote: > From: Daniel Vetter > > The userspace might need some sort of cache coherency management e.g. when CPU > and GPU domains are being accessed through dma-buf at the same time. To > circumvent this problem there are begin/end coherency ma

[PATCH v7 3/5] dma-buf: Add ioctls to allow userspace to flush

From: Daniel Vetter The userspace might need some sort of cache coherency management e.g. when CPU and GPU domains are being accessed through dma-buf at the same time. To circumvent this problem there are begin/end coherency markers, that forward directly to existing dma-buf device drivers vfunc