On Fri, 22 Jan 2021 at 05:46, Robin Murphy wrote:
>
> On 2021-01-21 11:23, Chunyan Zhang wrote:
> > From: Chunyan Zhang
> >
> > This patch only adds display iommu support, the driver was tested with sprd
> > dpu and image codec processor.
> >
> > The io
From: Chunyan Zhang
Changes since v1:
* Fixed compile errors reported by kernel test robot .
* Changed to use syscon to get mapped registers for iommu and media devices to
avoid double map issue.
* Addressed Robin's comments:
- Added including offset in the returned physical address i
From: Chunyan Zhang
This iommu module can be used by Unisoc's multimedia devices, such as
display, Image codec(jpeg) and a few signal processors, including
VSP(video), GSP(graphic), ISP(image), and CPP(camera pixel processor), etc.
Signed-off-by: Chunyan Zhang
---
.../devicetree/bin
From: Chunyan Zhang
This iommu module can be used by Unisoc's multimedia devices, such as
display, Image codec(jpeg) and a few signal processors, including
VSP(video), GSP(graphic), ISP(image), and CPP(camera pixel processor), etc.
Signed-off-by: Chunyan Zhang
---
drivers/iommu/Kc
From: Chunyan Zhang
This iommu module can be used by Unisoc's multimedia devices, such as
display, Image codec(jpeg) and a few signal processors, including
VSP(video), GSP(graphic), ISP(image), and CPP(camera pixel processor), etc.
Signed-off-by: Chunyan Zhang
---
drivers/iommu/Kc
On Tue, 2 Feb 2021 at 22:14, Joerg Roedel wrote:
>
> On Tue, Feb 02, 2021 at 06:42:57PM +0800, Chunyan Zhang wrote:
> > +static phys_addr_t sprd_iommu_iova_to_phys(struct iommu_domain *domain,
> > +dma_addr_t iova)
> > +{
> >
On Wed, 3 Feb 2021 at 02:02, Robin Murphy wrote:
>
> On 2021-02-02 14:41, Joerg Roedel wrote:
> > On Tue, Feb 02, 2021 at 02:34:34PM +, Robin Murphy wrote:
> >> Nope, I believe if Arm Ltd. had any involvement in this I'd know about it
> >> :)
> >
> > Okay, got confused by thinking of ARM as t
From: Chunyan Zhang
Changes since v2:
* Added a WARN and return 0 if an invalid iova was passed to
sprd_iommu_iova_to_phys();
* Changed the name of sprd_iommu_write();
* Revised CONFIG_SPRD_IOMMU help graph in Kconfig.
* Revised comments for the struct sprd_iommu_device;
* Converted to use &quo
From: Chunyan Zhang
This iommu module can be used by Unisoc's multimedia devices, such as
display, Image codec(jpeg) and a few signal processors, including
VSP(video), GSP(graphic), ISP(image), and CPP(camera pixel processor), etc.
Signed-off-by: Chunyan Zhang
---
drivers/iommu/Kc
From: Chunyan Zhang
This iommu module can be used by Unisoc's multimedia devices, such as
display, Image codec(jpeg) and a few signal processors, including
VSP(video), GSP(graphic), ISP(image), and CPP(camera pixel processor), etc.
Signed-off-by: Chunyan Zhang
---
.../devicetree/bin
On Thu, 4 Feb 2021 at 01:44, Randy Dunlap wrote:
>
> On 2/3/21 1:07 AM, Chunyan Zhang wrote:
> > diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
> > index 192ef8f61310..99e7712f3903 100644
> > --- a/drivers/iommu/Kconfig
> > +++ b/drivers/iommu/Kconfig
&
From: Chunyan Zhang
Changes since v3:
* Rebased on iommu/next, and fixed compile error reported by kernel test robot
;
* %s/iommu/IOMMU/ properly in the whole patchset.
Changes since v2:
* Added a WARN and return 0 if an invalid iova was passed to
sprd_iommu_iova_to_phys();
* Changed the name
From: Chunyan Zhang
This IOMMU module can be used by Unisoc's multimedia devices, such as
display, Image codec(jpeg) and a few signal processors, including
VSP(video), GSP(graphic), ISP(image), and CPP(camera pixel processor), etc.
Signed-off-by: Chunyan Zhang
---
.../devicetree/bin
From: Chunyan Zhang
This IOMMU module can be used by Unisoc's multimedia devices, such as
display, Image codec(jpeg) and a few signal processors, including
VSP(video), GSP(graphic), ISP(image), and CPP(camera pixel processor), etc.
Signed-off-by: Chunyan Zhang
---
drivers/iommu/Kc
Hi Rob,
On Fri, 5 Feb 2021 at 07:25, Rob Herring wrote:
>
> On Wed, Feb 03, 2021 at 05:07:26PM +0800, Chunyan Zhang wrote:
> > From: Chunyan Zhang
> >
> > This iommu module can be used by Unisoc's multimedia devices, such as
> > display, Image codec(jpeg) and
On Thu, 11 Feb 2021 at 03:21, Rob Herring wrote:
>
> On Fri, Feb 5, 2021 at 1:21 AM Chunyan Zhang wrote:
> >
> > Hi Rob,
> >
> > On Fri, 5 Feb 2021 at 07:25, Rob Herring wrote:
> > >
> > > On Wed, Feb 03, 2021 at 05:07:26PM +0800,
On Tue, 16 Feb 2021 at 23:10, Robin Murphy wrote:
>
> On 2021-02-10 19:21, Rob Herring wrote:
> > On Fri, Feb 5, 2021 at 1:21 AM Chunyan Zhang wrote:
> >>
> >> Hi Rob,
> >>
> >> On Fri, 5 Feb 2021 at 07:25, Rob Herring wrote:
> >>>
&
Hi Robin,
On Tue, 16 Feb 2021 at 23:10, Robin Murphy wrote:
>
> >>>
> >>> On Wed, Feb 03, 2021 at 05:07:26PM +0800, Chunyan Zhang wrote:
> >>>> From: Chunyan Zhang
> >>>>
> >>>> This iommu module can be used by Unisoc&#
From: Chunyan Zhang
Changes since v4 (https://lkml.org/lkml/2021/2/4/85):
* Rebased on v5.12-rc1;
* Dropped using syscon node for mapping registers according to Rob's comments.
Changes since v3 (https://lkml.org/lkml/2021/2/3/161):
* Rebased on iommu/next, and fixed compile error report
From: Chunyan Zhang
This IOMMU module can be used by Unisoc's multimedia devices, such as
display, Image codec(jpeg) and a few signal processors, including
VSP(video), GSP(graphic), ISP(image), and CPP(camera pixel processor), etc.
Signed-off-by: Chunyan Zhang
---
.../devicetree/bin
From: Chunyan Zhang
This IOMMU module can be used by Unisoc's multimedia devices, such as
display, Image codec(jpeg) and a few signal processors, including
VSP(video), GSP(graphic), ISP(image), and CPP(camera pixel processor), etc.
Signed-off-by: Chunyan Zhang
---
drivers/iommu/Kc
From: Chunyan Zhang
The second parameter of clk_get_optional() is "const char *", so use NULL
instead of integer 0 to fix a sparse warning like:
">> drivers/iommu/sprd-iommu.c:456:42: sparse: sparse: Using plain integer as
NULL pointer"
Also this patch changes t
On Thu, Aug 5, 2021 at 1:18 AM Robin Murphy wrote:
>
> The core code bakes its own cookies now.
>
> CC: Chunyan Zhang
> Signed-off-by: Robin Murphy
Thank you for the patch!
Acked-by: Chunyan Zhang
>
> ---
>
> v3: Also remove unneeded include
> ---
>
From: Chunyan Zhang
This patch only adds bindings to support display iommu, support for others
would be added once finished tests with those devices, such as Image
codec(jpeg) processor, a few signal processors, including VSP(video),
GSP(graphic), ISP(image), and camera CPP, etc.
Signed-off-by
From: Chunyan Zhang
This patch only adds display iommu support, the driver was tested with sprd
dpu.
The iommu support for others would be added once finished tests with those
devices, such as Image codec(jpeg) processor, a few signal processors,
including VSP(video), GSP(graphic), ISP(image
On Fri, 8 Jan 2021 at 10:25, Rob Herring wrote:
>
> On Wed, Dec 23, 2020 at 07:16:32PM +0800, Chunyan Zhang wrote:
> > From: Chunyan Zhang
> >
> > This patch only adds bindings to support display iommu, support for others
> > would be added once finished tests wit
From: Chunyan Zhang
This patch only adds bindings to support display iommu.
The iommu support for others would be added once finished tests with those
devices, such as Image codec(jpeg) processor, a few signal processors,
including VSP(video), GSP(graphic), ISP(image), and camera CPP, etc
From: Chunyan Zhang
Changes since RFC v1:
* Rebased on v5.11-rc1;
* Changed sprd-iommu to tristate;
* Removed check for args_count of iommu OF node, since there's no args
for sprd-iommu device node;
* Added another IP version (i.e. vau);
* Removed unnecessary configs selection
From: Chunyan Zhang
This patch only adds display iommu support, the driver was tested with sprd
dpu.
The iommu support for others would be added once finished tests with those
devices, such as Image codec(jpeg) processor, a few signal processors,
including VSP(video), GSP(graphic), ISP(image
Hi Robin,
On Wed, 13 Jan 2021 at 03:10, Robin Murphy wrote:
>
> On 2021-01-08 11:38, Chunyan Zhang wrote:
> > From: Chunyan Zhang
> >
> > This patch only adds display iommu support, the driver was tested with sprd
> > dpu.
> >
> > The iommu support for
On Wed, 20 Jan 2021 at 20:29, Robin Murphy wrote:
>
> On 2021-01-20 11:40, Chunyan Zhang wrote:
> [...]
> >>> + pgt_base_iova = dom->pgt_va +
> >>> + ((iova - mdata->iova_start) >> SPRD_IOMMU_PAGE_SHIFT);
> >>> +
> >&g
On Wed, 13 Jan 2021 at 21:47, Rob Herring wrote:
>
> On Fri, Jan 8, 2021 at 5:34 AM Chunyan Zhang wrote:
> >
> > On Fri, 8 Jan 2021 at 10:25, Rob Herring wrote:
> > >
> > > On Wed, Dec 23, 2020 at 07:16:32PM +0800, Chunyan Zhang wrote:
> > > >
From: Chunyan Zhang
Changes since RFC v2:
* Addressed Robin's comments:
- Add COMPILE_TEST support;
- Use DMA allocator for PTE;
- Revised to avoid resource leak issue;
- Added ->iotlb_sync implemented;
- Moved iommu group allocation to probe;
- Changed some function names to make t
From: Chunyan Zhang
This patch adds bindings to support display and Image codec(jpeg) iommu
instance.
The iommu support for others would be added once finished tests with those
devices, such as a few signal processors, including VSP(video),
GSP(graphic), ISP(image), and camera CPP, etc.
Signed
From: Chunyan Zhang
This patch only adds display iommu support, the driver was tested with sprd
dpu and image codec processor.
The iommu support for others would be added once finished tests with those
devices, such as a few signal processors, including VSP(video),
GSP(graphic), ISP(image), and
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