I think now I have an answer to my question.
I will back come in a couple of weeks with a generic dmabuf allocator.
The feature set of this should be:
- allow to have per device specificone allocator
- ioctl for buffer allocation and exporting dmabuf file descriptor on /dev/foo
- generic API to
Am 08.05.2015 um 10:37 schrieb Daniel Vetter:
dma-buf user handles are fds, which means anything allocated can be passed
around nicely already. The question really is whether we'll have one ioctl
on top of a special dev node or a syscall. I thought that in these cases
where the dev node is only
On Thu, May 07, 2015 at 05:40:03PM +0100, One Thousand Gnomes wrote:
On Thu, 7 May 2015 15:52:12 +0200
Daniel Vetter dan...@ffwll.ch wrote:
On Thu, May 07, 2015 at 03:22:20PM +0200, Thierry Reding wrote:
On Wed, May 06, 2015 at 03:15:32PM +0200, Daniel Vetter wrote:
Yes the idea would
dma-buf user handles are fds, which means anything allocated can be passed
around nicely already. The question really is whether we'll have one ioctl
on top of a special dev node or a syscall. I thought that in these cases
where the dev node is only ever used to allocate the real thing, a
On Wed, May 06, 2015 at 03:15:32PM +0200, Daniel Vetter wrote:
On Wed, May 06, 2015 at 11:19:21AM +0200, Thierry Reding wrote:
On Wed, May 06, 2015 at 10:35:52AM +0200, Daniel Vetter wrote:
On Tue, May 05, 2015 at 05:54:05PM +0100, One Thousand Gnomes wrote:
First what is Secure Data
On Thu, May 07, 2015 at 03:22:20PM +0200, Thierry Reding wrote:
On Wed, May 06, 2015 at 03:15:32PM +0200, Daniel Vetter wrote:
Yes the idea would be a special-purpose allocater thing like ion. Might
even want that to be a syscall to do it properly.
Would you care to elaborate why a syscall
On Wed, May 06, 2015 at 07:29:56AM -0400, Rob Clark wrote:
On Wed, May 6, 2015 at 4:35 AM, Daniel Vetter dan...@ffwll.ch wrote:
On Tue, May 05, 2015 at 05:54:05PM +0100, One Thousand Gnomes wrote:
First what is Secure Data Path ? SDP is a set of hardware features to
garanty
that some
On Thu, 7 May 2015 15:52:12 +0200
Daniel Vetter dan...@ffwll.ch wrote:
On Thu, May 07, 2015 at 03:22:20PM +0200, Thierry Reding wrote:
On Wed, May 06, 2015 at 03:15:32PM +0200, Daniel Vetter wrote:
Yes the idea would be a special-purpose allocater thing like ion. Might
even want that to
2015-05-05 18:54 GMT+02:00 One Thousand Gnomes gno...@lxorguk.ukuu.org.uk:
First what is Secure Data Path ? SDP is a set of hardware features to garanty
that some memories regions could only be read and/or write by specific
hardware
IPs. You can imagine it as a kind of memory firewall which
On 05/06/15 10:35, Daniel Vetter wrote:
On Tue, May 05, 2015 at 05:54:05PM +0100, One Thousand Gnomes wrote:
First what is Secure Data Path ? SDP is a set of hardware features to
garanty
that some memories regions could only be read and/or write by specific
hardware
IPs. You can imagine it
On Wed, May 06, 2015 at 10:35:52AM +0200, Daniel Vetter wrote:
On Tue, May 05, 2015 at 05:54:05PM +0100, One Thousand Gnomes wrote:
First what is Secure Data Path ? SDP is a set of hardware features to
garanty
that some memories regions could only be read and/or write by specific
On Wed, May 06, 2015 at 03:50:13AM +0300, Laurent Pinchart wrote:
On Tuesday 05 May 2015 09:27:52 Christoph Hellwig wrote:
On Tue, May 05, 2015 at 05:39:57PM +0200, Benjamin Gaignard wrote:
Since few months I'm looking for Linaro to how do Secure Data Path (SPD).
I have tried and
I agree that the best solution is to have a generic dmabuf allocator
but no only for secure use cases.
If we create a memory allocator dedicated to security it means that
userland will be responsible to use it or not depending of the context
which may change while the pipeline/graph is already
On Tue, May 05, 2015 at 05:54:05PM +0100, One Thousand Gnomes wrote:
First what is Secure Data Path ? SDP is a set of hardware features to
garanty
that some memories regions could only be read and/or write by specific
hardware
IPs. You can imagine it as a kind of memory firewall which
On Wed, May 6, 2015 at 4:35 AM, Daniel Vetter dan...@ffwll.ch wrote:
On Tue, May 05, 2015 at 05:54:05PM +0100, One Thousand Gnomes wrote:
First what is Secure Data Path ? SDP is a set of hardware features to
garanty
that some memories regions could only be read and/or write by specific
On Wed, May 06, 2015 at 11:19:21AM +0200, Thierry Reding wrote:
On Wed, May 06, 2015 at 10:35:52AM +0200, Daniel Vetter wrote:
On Tue, May 05, 2015 at 05:54:05PM +0100, One Thousand Gnomes wrote:
First what is Secure Data Path ? SDP is a set of hardware features to
garanty
that
On Tuesday 05 May 2015 09:27:52 Christoph Hellwig wrote:
On Tue, May 05, 2015 at 05:39:57PM +0200, Benjamin Gaignard wrote:
Since few months I'm looking for Linaro to how do Secure Data Path (SPD).
I have tried and implemented multiple thinks but I always facing
architecture issues so I
On Tue, May 05, 2015 at 05:39:57PM +0200, Benjamin Gaignard wrote:
Since few months I'm looking for Linaro to how do Secure Data Path (SPD).
I have tried and implemented multiple thinks but I always facing architecture
issues so I would like to get your help to solve the problem.
First what
First what is Secure Data Path ? SDP is a set of hardware features to garanty
that some memories regions could only be read and/or write by specific
hardware
IPs. You can imagine it as a kind of memory firewall which grant/revoke
accesses to memory per devices. Firewall configuration must be
Hello,
Since few months I'm looking for Linaro to how do Secure Data Path (SPD).
I have tried and implemented multiple thinks but I always facing architecture
issues so I would like to get your help to solve the problem.
First what is Secure Data Path ? SDP is a set of hardware features to
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