On 15/06/2024 13:35, Marek Olšák wrote:
It's probably driver-specific. Some drivers might need glFlush before
you use gbm_bo_map because gbm might only wait for work that has been
flushed.
That would be needed on the "writing" side, right? So if I'm seeing
issues when mapping for reading, the
Am 17.06.24 um 09:32 schrieb Pierre Ossman:
On 15/06/2024 13:35, Marek Olšák wrote:
It's probably driver-specific. Some drivers might need glFlush before
you use gbm_bo_map because gbm might only wait for work that has been
flushed.
That would be needed on the "writing" side, right? So if I'm
On 17/06/2024 10:13, Christian König wrote:
Let me try to clarify a couple of things:
The DMA_BUF_IOCTL_SYNC function is to flush and invalidate caches so
that the GPU can see values written by the CPU and the CPU can see
values written by the GPU. But that IOCTL does *not* wait for any async
Am 17.06.24 um 12:29 schrieb Pierre Ossman:
On 17/06/2024 10:13, Christian König wrote:
Let me try to clarify a couple of things:
The DMA_BUF_IOCTL_SYNC function is to flush and invalidate caches so
that the GPU can see values written by the CPU and the CPU can see
values written by the GPU.
Am 17.06.24 um 16:50 schrieb Michel Dänzer:
On 2024-06-17 12:29, Pierre Ossman wrote:
Just to avoid any uncertainty, are both of these things done implicitly by
gbm_bo_map()/gbm_bo_unmap()?
I did test adding those steps just in case, but unfortunately did not see an
improvement. My order was:
On 2024-06-17 12:29, Pierre Ossman wrote:
>
> Just to avoid any uncertainty, are both of these things done implicitly by
> gbm_bo_map()/gbm_bo_unmap()?
>
> I did test adding those steps just in case, but unfortunately did not see an
> improvement. My order was:
>
> 1. gbm_bo_import(GBM_BO_USE_R
Am 17.06.24 um 16:55 schrieb Michel Dänzer:
On 2024-06-17 16:52, Christian König wrote:
Am 17.06.24 um 16:50 schrieb Michel Dänzer:
On 2024-06-17 12:29, Pierre Ossman wrote:
Just to avoid any uncertainty, are both of these things done implicitly by
gbm_bo_map()/gbm_bo_unmap()?
I did test add
On 2024-06-17 16:52, Christian König wrote:
> Am 17.06.24 um 16:50 schrieb Michel Dänzer:
>> On 2024-06-17 12:29, Pierre Ossman wrote:
>>> Just to avoid any uncertainty, are both of these things done implicitly by
>>> gbm_bo_map()/gbm_bo_unmap()?
>>>
>>> I did test adding those steps just in case,
On 17/06/2024 16:50, Michel Dänzer wrote:
On 2024-06-17 12:29, Pierre Ossman wrote:
Just to avoid any uncertainty, are both of these things done implicitly by
gbm_bo_map()/gbm_bo_unmap()?
I did test adding those steps just in case, but unfortunately did not see an
improvement. My order was:
On 2024-06-17 17:27, Pierre Ossman wrote:
> On 17/06/2024 16:50, Michel Dänzer wrote:
>> On 2024-06-17 12:29, Pierre Ossman wrote:
>>>
>>> Just to avoid any uncertainty, are both of these things done implicitly by
>>> gbm_bo_map()/gbm_bo_unmap()?
>>>
>>> I did test adding those steps just in case,
On 17/06/2024 18:09, Michel Dänzer wrote:
Can I know whether it is needed or not? Or should I be cautious and always do
it?
Assuming GBM in the X server uses the GPU HW driver, I'd say it shouldn't be
needed.
It does not (except the driver libgbm loads). We're trying to use this
in Xvnc,
Am 17.06.24 um 19:18 schrieb Pierre Ossman:
On 17/06/2024 18:09, Michel Dänzer wrote:
Can I know whether it is needed or not? Or should I be cautious and
always do it?
Assuming GBM in the X server uses the GPU HW driver, I'd say it
shouldn't be needed.
It does not (except the driver lib
On 17/06/2024 20:18, Christian König wrote:
Am 17.06.24 um 19:18 schrieb Pierre Ossman:
On 17/06/2024 18:09, Michel Dänzer wrote:
Can I know whether it is needed or not? Or should I be cautious and
always do it?
Assuming GBM in the X server uses the GPU HW driver, I'd say it
shouldn't be n
Am 18.06.24 um 07:01 schrieb Pierre Ossman:
On 17/06/2024 20:18, Christian König wrote:
Am 17.06.24 um 19:18 schrieb Pierre Ossman:
On 17/06/2024 18:09, Michel Dänzer wrote:
Can I know whether it is needed or not? Or should I be cautious
and always do it?
Assuming GBM in the X server uses
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