Hi Robin,
On 24.09.2020 13:06, Robin Murphy wrote:
> On 2020-09-24 11:47, Marek Szyprowski wrote:
>> On 24.09.2020 12:40, Robin Murphy wrote:
>>> On 2020-09-24 11:16, Thierry Reding wrote:
On Thu, Sep 24, 2020 at 10:46:46AM +0200, Marek Szyprowski wrote:
> On 24.09.2020 10:28, Joerg
On Thu, Sep 24, 2020 at 12:41:29PM +0200, Marek Szyprowski wrote:
> Hi Thierry,
>
> On 24.09.2020 12:16, Thierry Reding wrote:
> > On Thu, Sep 24, 2020 at 10:46:46AM +0200, Marek Szyprowski wrote:
> >> On 24.09.2020 10:28, Joerg Roedel wrote:
> >>> On Wed, Sep 23, 2020 at 08:48:26AM +0200, Marek
Hi Robin and Marek,
On Thu, Sep 24, 2020 at 4:36 PM Robin Murphy wrote:
>
> On 2020-09-24 11:47, Marek Szyprowski wrote:
> > Hi Robin,
> >
> > On 24.09.2020 12:40, Robin Murphy wrote:
> >> On 2020-09-24 11:16, Thierry Reding wrote:
> >>> On Thu, Sep 24, 2020 at 10:46:46AM +0200, Marek
On 2020-09-24 11:47, Marek Szyprowski wrote:
Hi Robin,
On 24.09.2020 12:40, Robin Murphy wrote:
On 2020-09-24 11:16, Thierry Reding wrote:
On Thu, Sep 24, 2020 at 10:46:46AM +0200, Marek Szyprowski wrote:
On 24.09.2020 10:28, Joerg Roedel wrote:
On Wed, Sep 23, 2020 at 08:48:26AM +0200,
Hi Robin,
On 24.09.2020 12:40, Robin Murphy wrote:
> On 2020-09-24 11:16, Thierry Reding wrote:
>> On Thu, Sep 24, 2020 at 10:46:46AM +0200, Marek Szyprowski wrote:
>>> On 24.09.2020 10:28, Joerg Roedel wrote:
On Wed, Sep 23, 2020 at 08:48:26AM +0200, Marek Szyprowski wrote:
> It allows
Hi Thierry,
On 24.09.2020 12:16, Thierry Reding wrote:
> On Thu, Sep 24, 2020 at 10:46:46AM +0200, Marek Szyprowski wrote:
>> On 24.09.2020 10:28, Joerg Roedel wrote:
>>> On Wed, Sep 23, 2020 at 08:48:26AM +0200, Marek Szyprowski wrote:
It allows to remap given buffer at the specific IOVA
On 2020-09-24 11:16, Thierry Reding wrote:
On Thu, Sep 24, 2020 at 10:46:46AM +0200, Marek Szyprowski wrote:
Hi Joerg,
On 24.09.2020 10:28, Joerg Roedel wrote:
On Wed, Sep 23, 2020 at 08:48:26AM +0200, Marek Szyprowski wrote:
It allows to remap given buffer at the specific IOVA address,
On Thu, Sep 24, 2020 at 10:46:46AM +0200, Marek Szyprowski wrote:
> Hi Joerg,
>
> On 24.09.2020 10:28, Joerg Roedel wrote:
> > On Wed, Sep 23, 2020 at 08:48:26AM +0200, Marek Szyprowski wrote:
> >> It allows to remap given buffer at the specific IOVA address, although
> >> it doesn't guarantee
Hi Joerg,
On 24.09.2020 10:28, Joerg Roedel wrote:
> On Wed, Sep 23, 2020 at 08:48:26AM +0200, Marek Szyprowski wrote:
>> It allows to remap given buffer at the specific IOVA address, although
>> it doesn't guarantee that those specific addresses won't be later used
>> by the IOVA allocator.
On Wed, Sep 23, 2020 at 08:48:26AM +0200, Marek Szyprowski wrote:
> It allows to remap given buffer at the specific IOVA address, although
> it doesn't guarantee that those specific addresses won't be later used
> by the IOVA allocator. Probably it would make sense to add an API for
> generic
On Wed, Sep 23, 2020 at 01:15:33PM +0530, Ajay kumar wrote:
> Hello all,
>
> We pretty much tried to solve the same issue here with a new API in DMA-IOMMU:
> https://lore.kernel.org/linux-iommu/20200811054912.ga...@infradead.org/T/
>
> Christopher- the user part would be MFC devices on exynos
Hello all,
We pretty much tried to solve the same issue here with a new API in DMA-IOMMU:
https://lore.kernel.org/linux-iommu/20200811054912.ga...@infradead.org/T/
Christopher- the user part would be MFC devices on exynos platforms
Thanks,
Ajay
On 9/23/20, Christoph Hellwig wrote:
> On Wed,
Hello all,
We pretty much tried to solve the same issue here with a new API in DMA-IOMMU:
https://lore.kernel.org/linux-iommu/20200811054912.ga...@infradead.org/T/
Christoph - the user part would be MFC devices on exynos platforms
Thanks,
Ajay
On Wed, Sep 23, 2020 at 12:28 PM Christoph
On Wed, Sep 23, 2020 at 08:48:26AM +0200, Marek Szyprowski wrote:
> Hi Shaik,
>
> I've run into similar problem while adapting S5P-MFC and Exynos4-IS
> drivers for generic IOMMU-DMA framework. Here is my first solution:
>
Hi Shaik,
I've run into similar problem while adapting S5P-MFC and Exynos4-IS
drivers for generic IOMMU-DMA framework. Here is my first solution:
https://lore.kernel.org/linux-samsung-soc/20200918144833.14618-1-m.szyprow...@samsung.com/T/
It allows to remap given buffer at the specific IOVA
On Fri, Apr 24, 2020 at 8:59 PM Robin Murphy wrote:
>
> On 2020-04-24 4:04 pm, Ajay kumar wrote:
> > Can someone check this?
> >
> > On Mon, Apr 20, 2020 at 9:24 PM Ajay kumar wrote:
> >>
> >> Hi All,
> >>
> >> I have an IOMMU master which has limitations as mentioned below:
> >> 1) The IOMMU
On 2020-04-24 4:04 pm, Ajay kumar wrote:
Can someone check this?
On Mon, Apr 20, 2020 at 9:24 PM Ajay kumar wrote:
Hi All,
I have an IOMMU master which has limitations as mentioned below:
1) The IOMMU master internally executes a firmware, and the firmware memory
is allocated by the same
Can someone check this?
On Mon, Apr 20, 2020 at 9:24 PM Ajay kumar wrote:
>
> Hi All,
>
> I have an IOMMU master which has limitations as mentioned below:
> 1) The IOMMU master internally executes a firmware, and the firmware memory
> is allocated by the same master driver.
> The firmware buffer
Hi All,
I have an IOMMU master which has limitations as mentioned below:
1) The IOMMU master internally executes a firmware, and the firmware memory
is allocated by the same master driver.
The firmware buffer address should be of the lowest range than other address
allocated by the device, or in
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