Hi Kevin,
On Friday 19 December 2014 03:27:35 Rafael J. Wysocki wrote:
> On Thursday, December 18, 2014 11:28:58 PM Laurent Pinchart wrote:
> > Hi Kevin,
>
> [cut]
>
> It would be better to be able to reference count the DMA engine from
> the bus master IMO and arguably you can use the r
On Thursday, December 18, 2014 11:28:58 PM Laurent Pinchart wrote:
> Hi Kevin,
>
[cut]
> > >>
> > >> It would be better to be able to reference count the DMA engine from the
> > >> bus master IMO and arguably you can use the runtime PM framework for
> > >> that. Namely, give bus masters sometin
Hi Kevin,
On Thursday 18 December 2014 13:14:24 Kevin Hilman wrote:
> Laurent Pinchart writes:
> > On Thursday 18 December 2014 02:32:30 Rafael J. Wysocki wrote:
> >> On Wednesday, December 17, 2014 02:15:31 AM Laurent Pinchart wrote:
> >>> On Tuesday 16 December 2014 11:18:33 Tomasz Figa wrote:
Laurent Pinchart writes:
> Hi Rafael,
>
> On Thursday 18 December 2014 02:32:30 Rafael J. Wysocki wrote:
>> On Wednesday, December 17, 2014 02:15:31 AM Laurent Pinchart wrote:
>> > On Tuesday 16 December 2014 11:18:33 Tomasz Figa wrote:
>> >> On Tue, Dec 16, 2014 at 4:53 AM, Laurent Pinchart wrot
Hi Rafael,
On Thursday 18 December 2014 02:32:30 Rafael J. Wysocki wrote:
> On Wednesday, December 17, 2014 02:15:31 AM Laurent Pinchart wrote:
> > On Tuesday 16 December 2014 11:18:33 Tomasz Figa wrote:
> >> On Tue, Dec 16, 2014 at 4:53 AM, Laurent Pinchart wrote:
> >>> On Monday 15 December 2014
On Wednesday, December 17, 2014 02:15:31 AM Laurent Pinchart wrote:
> Hi Tomasz,
>
> On Tuesday 16 December 2014 11:18:33 Tomasz Figa wrote:
> > On Tue, Dec 16, 2014 at 4:53 AM, Laurent Pinchart wrote:
> > > On Monday 15 December 2014 11:39:01 Tomasz Figa wrote:
> > >> On Sat, Dec 13, 2014 at 5:47
Hi Tomasz,
On Tuesday 16 December 2014 11:18:33 Tomasz Figa wrote:
> On Tue, Dec 16, 2014 at 4:53 AM, Laurent Pinchart wrote:
> > On Monday 15 December 2014 11:39:01 Tomasz Figa wrote:
> >> On Sat, Dec 13, 2014 at 5:47 AM, Laurent Pinchart wrote:
> >>> On Friday 12 December 2014 13:15:51 Tomasz Fi
On Tue, Dec 16, 2014 at 4:53 AM, Laurent Pinchart
wrote:
> Hi Tomasz,
>
> On Monday 15 December 2014 11:39:01 Tomasz Figa wrote:
>> On Sat, Dec 13, 2014 at 5:47 AM, Laurent Pinchart wrote:
>> > On Friday 12 December 2014 13:15:51 Tomasz Figa wrote:
>> >> On Fri, Dec 12, 2014 at 5:48 AM, Rafael J.
Hi Tomasz,
On Monday 15 December 2014 11:39:01 Tomasz Figa wrote:
> On Sat, Dec 13, 2014 at 5:47 AM, Laurent Pinchart wrote:
> > On Friday 12 December 2014 13:15:51 Tomasz Figa wrote:
> >> On Fri, Dec 12, 2014 at 5:48 AM, Rafael J. Wysocki wrote:
> >>> On Thursday, December 11, 2014 04:51:37 PM Ul
Geert Uytterhoeven writes:
> On Fri, Dec 12, 2014 at 9:04 PM, Kevin Hilman wrote:
>> An even more exciting problem exists when a CPU is in the same domain as
>> other peripherals, those peripherals are all idle and the power domain
>> is gated. :)
>
> We do have pm_genpd_attach_cpuidle() and pm_
On Fri, Dec 12, 2014 at 9:04 PM, Kevin Hilman wrote:
> An even more exciting problem exists when a CPU is in the same domain as
> other peripherals, those peripherals are all idle and the power domain
> is gated. :)
We do have pm_genpd_attach_cpuidle() and pm_genpd_name_attach_cpuidle()?
Gr{oetj
On Sat, Dec 13, 2014 at 5:47 AM, Laurent Pinchart
wrote:
> Hello,
>
> On Friday 12 December 2014 13:15:51 Tomasz Figa wrote:
>> On Fri, Dec 12, 2014 at 5:48 AM, Rafael J. Wysocki wrote:
>> > On Thursday, December 11, 2014 04:51:37 PM Ulf Hansson wrote:
>> >> On 11 December 2014 at 16:31, Kevin Hil
On Sat, Dec 13, 2014 at 5:04 AM, Kevin Hilman wrote:
> Tomasz Figa writes:
>
> [...]
>
>> We have a power domain, which contains an IOMMU and an IP block, which
>> can do bus transactions through that IOMMU. Of course the IP block is
>> not aware of the IOMMU, because this is just an integration
Hello,
On Friday 12 December 2014 13:15:51 Tomasz Figa wrote:
> On Fri, Dec 12, 2014 at 5:48 AM, Rafael J. Wysocki wrote:
> > On Thursday, December 11, 2014 04:51:37 PM Ulf Hansson wrote:
> >> On 11 December 2014 at 16:31, Kevin Hilman wrote:
> >> > [+ Laurent Pinchart]
> >> >
> >> > Tomasz Figa
[+ Laurent Pinchart]
Tomasz Figa writes:
> On Thu, Dec 11, 2014 at 8:58 PM, Ulf Hansson wrote:
[...]
>>> @@ -988,11 +1107,28 @@ static int rk_iommu_probe(struct platform_device
>>> *pdev)
>>> return -ENXIO;
>>> }
>>>
>>> + pm_runtime_no_callbacks(dev);
>>> +
Tomasz Figa writes:
[...]
> We have a power domain, which contains an IOMMU and an IP block, which
> can do bus transactions through that IOMMU. Of course the IP block is
> not aware of the IOMMU, because this is just an integration detail and
> on other platforms using the same IP block the IOM
Hi Rafael,
On Fri, Dec 12, 2014 at 5:48 AM, Rafael J. Wysocki wrote:
> On Thursday, December 11, 2014 04:51:37 PM Ulf Hansson wrote:
>> On 11 December 2014 at 16:31, Kevin Hilman wrote:
>> > [+ Laurent Pinchart]
>> >
>> > Tomasz Figa writes:
>> >
>> >> On Thu, Dec 11, 2014 at 8:58 PM, Ulf Hanss
On Thursday, December 11, 2014 04:51:37 PM Ulf Hansson wrote:
> On 11 December 2014 at 16:31, Kevin Hilman wrote:
> > [+ Laurent Pinchart]
> >
> > Tomasz Figa writes:
> >
> >> On Thu, Dec 11, 2014 at 8:58 PM, Ulf Hansson
> >> wrote:
> >
> > [...]
> >
> @@ -988,11 +1107,28 @@ static int rk_
On 11 December 2014 at 16:31, Kevin Hilman wrote:
> [+ Laurent Pinchart]
>
> Tomasz Figa writes:
>
>> On Thu, Dec 11, 2014 at 8:58 PM, Ulf Hansson wrote:
>
> [...]
>
@@ -988,11 +1107,28 @@ static int rk_iommu_probe(struct platform_device
*pdev)
return -ENXIO;
On 11 December 2014 at 13:42, Tomasz Figa wrote:
> Hi Ulf,
>
> On Thu, Dec 11, 2014 at 8:58 PM, Ulf Hansson wrote:
>> On 11 December 2014 at 09:26, Tomasz Figa wrote:
>>> This patch modifies the rockchip-iommu driver to consider state of
>>> the power domain the IOMMU is located in. When the pow
On 11 December 2014 at 09:26, Tomasz Figa wrote:
> This patch modifies the rockchip-iommu driver to consider state of
> the power domain the IOMMU is located in. When the power domain
> is powered off, the IOMMU cannot be accessed and register programming
> must be deferred until the power domain
Hi Ulf,
On Thu, Dec 11, 2014 at 8:58 PM, Ulf Hansson wrote:
> On 11 December 2014 at 09:26, Tomasz Figa wrote:
>> This patch modifies the rockchip-iommu driver to consider state of
>> the power domain the IOMMU is located in. When the power domain
>> is powered off, the IOMMU cannot be accessed
This patch modifies the rockchip-iommu driver to consider state of
the power domain the IOMMU is located in. When the power domain
is powered off, the IOMMU cannot be accessed and register programming
must be deferred until the power domain becomes enabled.
The solution implemented in this patch u
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