synchronization model? Do you think we could use the android sync_fence for
passing fences between user space? Or did you have something else in mind for
explicit sync in the drm world?
Thanks,
Lauri
Lauri Peltonen (7):
android: Support creating sync fence from drm fences
drm/nouveau: Split
interface.
Modify the sync driver debug code to not assume that every 'struct fence'
(that is associated with a 'struct sync_fence') is embedded within a
'struct sync_pt'.
Signed-off-by: Lauri Peltonen
---
drivers/staging/android/sw_sync.c| 3 ++-
drivers/staging/android/sync.c | 34
Split nouveau_fence_sync to two functions:
* nouveau_fence_sync, which only adds a fence wait to the channel
command stream, and
* nouveau_bo_sync, which gets the fences from the reservation object
and passes them to nouveau_fence_sync.
Signed-off-by: Lauri Peltonen
---
drm
on the CPU.
Add missing fence_value_str and timeline_value_str callbacks to
nouveau fence_ops.
Signed-off-by: Lauri Peltonen
---
drm/nouveau_fence.c | 71 -
drm/nouveau_fence.h | 2 ++
2 files changed, 72 insertions(+), 1 deletion(-)
diff --git
Add a new NOUVEAU_GEM_PUSHBUF_2 ioctl that accepts and emits a sync
fence fd from/to user space if the user space requests it by passing
corresponding flags.
Signed-off-by: Lauri Peltonen
---
drm/nouveau_drm.c | 1 +
drm/nouveau_gem.c | 46
Add a new nouveau_pushbuf_kick_fence function that takes and emits
a sync fence fd. The fence fd can be waited on, or merged with
other fence fd's, or passed back to kernel as a prerquisite for a
subsequent hw operation.
Signed-off-by: Lauri Peltonen
---
include/drm/nouveau_drm.h | 10
Do not attach fences automatically to buffers that are marked for
explicit synchronization.
Signed-off-by: Lauri Peltonen
---
drm/nouveau_bo.c | 8
drm/nouveau_bo.h | 4 ++--
drm/nouveau_drm.c | 1 +
drm/nouveau_gem.c | 47
Allow user space to provide an explicit sync fence fd when exporting
a dma-buf from gem handle. The fence will be stored as the explicit
fence to the reservation object.
Signed-off-by: Lauri Peltonen
---
drivers/gpu/drm/drm_prime.c | 41 +
include/uapi
Thanks Daniel for your input!
On Mon, Sep 29, 2014 at 09:43:02AM +0200, Daniel Vetter wrote:
> On Fri, Sep 26, 2014 at 01:00:05PM +0300, Lauri Peltonen wrote:
> > (2) Stop automatically storing fences to the buffers that user space wants
> > to
> > synchronize explici
On Mon, Sep 29, 2014 at 09:46:48AM +0200, Daniel Vetter wrote:
> On Fri, Sep 26, 2014 at 01:00:12PM +0300, Lauri Peltonen wrote:
> > Allow user space to provide an explicit sync fence fd when exporting
> > a dma-buf from gem handle. The fence will be stored as the exp
be dealt with later as an optimization.
On Wed, Oct 01, 2014 at 07:27:21PM +0200, Daniel Vetter wrote:
> On Wed, Oct 01, 2014 at 06:14:16PM +0300, Lauri Peltonen wrote:
> > Implicit fences attached to individual buffers are one way for residency
> > management. Do you think a worki
On Thu, Oct 02, 2014 at 10:44:05PM +0200, Daniel Vetter wrote:
> On Thu, Oct 02, 2014 at 05:59:51PM +0300, Lauri Peltonen wrote:
> > Yes, that will probably work! So, just to reiterate that I understood you
> > and
> > Daniel correctly:
> >
> > - de-stage s
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