2013/6/25 Jerome Glisse :
> On Tue, Jun 25, 2013 at 10:17 AM, Inki Dae wrote:
>> 2013/6/25 Rob Clark :
>>> On Tue, Jun 25, 2013 at 5:09 AM, Inki Dae wrote:
> that
> should be the role of kernel memory management which of course needs
> synchronization btw A and B. But in no case this
On Tue, Jun 25, 2013 at 10:17 AM, Inki Dae wrote:
> 2013/6/25 Rob Clark :
>> On Tue, Jun 25, 2013 at 5:09 AM, Inki Dae wrote:
that
should be the role of kernel memory management which of course needs
synchronization btw A and B. But in no case this should be done using
dma-buf
2013/6/25 Rob Clark :
> On Tue, Jun 25, 2013 at 5:09 AM, Inki Dae wrote:
>>> that
>>> should be the role of kernel memory management which of course needs
>>> synchronization btw A and B. But in no case this should be done using
>>> dma-buf. dma-buf is for sharing content btw different devices not
On Tue, Jun 25, 2013 at 5:09 AM, Inki Dae wrote:
>> that
>> should be the role of kernel memory management which of course needs
>> synchronization btw A and B. But in no case this should be done using
>> dma-buf. dma-buf is for sharing content btw different devices not
>> sharing resources.
>>
>
kernel.org; dri-de...@lists.freedesktop.org;
> kyungmin.p...@samsung.com; myungjoo@samsung.com; yj44@samsung.com;
> linux-arm-ker...@lists.infradead.org; linux-media@vger.kernel.org
> Subject: Re: [RFC PATCH] dmabuf-sync: Introduce buffer synchronization
> framework
>
> On Thu, Jun 13, 2013
On Thu, Jun 13, 2013 at 05:28:08PM +0900, Inki Dae wrote:
> This patch adds a buffer synchronization framework based on DMA BUF[1]
> and reservation[2] to use dma-buf resource, and based on ww-mutexes[3]
> for lock mechanism.
>
> The purpose of this framework is not only to couple cache operations
> +static void dmabuf_sync_timeout_worker(struct work_struct *work)
> +{
> + struct dmabuf_sync *sync = container_of(work, struct dmabuf_sync,
> work);
> + struct dmabuf_sync_object *sobj;
> +
> + mutex_lock(&sync->lock);
> +
> + list_for_each_entry(sobj, &sync->syncs, head) {
> +
This patch adds a buffer synchronization framework based on DMA BUF[1]
and reservation[2] to use dma-buf resource, and based on ww-mutexes[3]
for lock mechanism.
The purpose of this framework is not only to couple cache operations,
and buffer access control to CPU and DMA but also to provide easy-
