[PATCH 0/2] Rpmsg support for i.MX DSP with resource table

[PATCH 0/2] Rpmsg support for i.MX DSP with resource table

[Iuliana Prodan (OSS)]

From: Iuliana Prodan <iuliana.prodan@nxp.com>

These patches are needed in order to support rpmsg on DSP when a
resource table is available.

Iuliana Prodan (2):
  remoteproc: imx_dsp_rproc: add mandatory find_loaded_rsc_table op
  arm64: dts: imx8mp: add reserve-memory nodes for DSP

 arch/arm64/boot/dts/freescale/imx8mp.dtsi | 12 ++++++++++++
 drivers/remoteproc/imx_dsp_rproc.c        |  1 +
 2 files changed, 13 insertions(+)

-- 
2.17.1

[PATCH 1/2] remoteproc: imx_dsp_rproc: add mandatory find_loaded_rsc_table op

[Iuliana Prodan (OSS)]

From: Iuliana Prodan <iuliana.prodan@nxp.com>

Add the .find_loaded_rsc_table operation for i.MX DSP.
We need it for inter-process communication between DSP
and main core.

This callback is used to find the resource table (defined
in remote processor linker script) where the address of the
vrings along with the other allocated resources (carveouts etc)
are stored.
If this is not found, the vrings are not allocated and
the IPC between cores will not work.

Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
---
 drivers/remoteproc/imx_dsp_rproc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/remoteproc/imx_dsp_rproc.c b/drivers/remoteproc/imx_dsp_rproc.c
index 8fcda9b74545..a1c62d15f16c 100644
--- a/drivers/remoteproc/imx_dsp_rproc.c
+++ b/drivers/remoteproc/imx_dsp_rproc.c
@@ -940,6 +940,7 @@ static const struct rproc_ops imx_dsp_rproc_ops = {
 	.kick		= imx_dsp_rproc_kick,
 	.load		= imx_dsp_rproc_elf_load_segments,
 	.parse_fw	= imx_dsp_rproc_parse_fw,
+	.find_loaded_rsc_table = rproc_elf_find_loaded_rsc_table,
 	.sanity_check	= rproc_elf_sanity_check,
 	.get_boot_addr	= rproc_elf_get_boot_addr,
 };
-- 
2.17.1

[PATCH 2/2] arm64: dts: imx8mp: add reserve-memory nodes for DSP

[Iuliana Prodan (OSS)]

From: Iuliana Prodan <iuliana.prodan@nxp.com>

Add the reserve-memory nodes used by DSP when the rpmsg
feature is enabled.
These can be later used in a dsp node, like:
dsp: dsp@3b6e8000 {
	compatible = "fsl,imx8mp-dsp";
	reg = <0x3b6e8000 0x88000>;
	mbox-names = "tx0", "rx0", "rxdb0";
	mboxes = <&mu2 2 0>, <&mu2 2 1>,
		<&mu2 3 0>, <&mu2 3 1>;
	memory-region = <&dsp_vdev0buffer>, <&dsp_vdev0vring0>,
		<&dsp_vdev0vring1>, <&dsp_reserved>;
	status = "okay";
};

Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx8mp.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index cc406bb338fe..eedc1921af62 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -210,6 +210,18 @@
 		dsp_reserved: dsp@92400000 {
 			reg = <0 0x92400000 0 0x2000000>;
 			no-map;
+		dsp_vdev0vring0: vdev0vring0@942f0000 {
+			reg = <0 0x942f0000 0 0x8000>;
+			no-map;
+		};
+		dsp_vdev0vring1: vdev0vring1@942f8000 {
+			reg = <0 0x942f8000 0 0x8000>;
+			no-map;
+		};
+		dsp_vdev0buffer: vdev0buffer@94300000 {
+			compatible = "shared-dma-pool";
+			reg = <0 0x94300000 0 0x100000>;
+			no-map;
 		};
 	};
 
-- 
2.17.1

Re: [PATCH 2/2] arm64: dts: imx8mp: add reserve-memory nodes for DSP

[Krzysztof Kozlowski]

On 12/09/2023 00:44, Iuliana Prodan (OSS) wrote:
> From: Iuliana Prodan <iuliana.prodan@nxp.com>
> 
> Add the reserve-memory nodes used by DSP when the rpmsg
> feature is enabled.
> These can be later used in a dsp node, like:
> dsp: dsp@3b6e8000 {
> 	compatible = "fsl,imx8mp-dsp";
> 	reg = <0x3b6e8000 0x88000>;
> 	mbox-names = "tx0", "rx0", "rxdb0";
> 	mboxes = <&mu2 2 0>, <&mu2 2 1>,
> 		<&mu2 3 0>, <&mu2 3 1>;
> 	memory-region = <&dsp_vdev0buffer>, <&dsp_vdev0vring0>,
> 		<&dsp_vdev0vring1>, <&dsp_reserved>;
> 	status = "okay";

Drop this example from commit msg, useless and not really correct.

> };
> 
> Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com>
> ---
>  arch/arm64/boot/dts/freescale/imx8mp.dtsi | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> index cc406bb338fe..eedc1921af62 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> @@ -210,6 +210,18 @@
>  		dsp_reserved: dsp@92400000 {
>  			reg = <0 0x92400000 0 0x2000000>;
>  			no-map;

Please test the patches before sending. This does not build.

Best regards,
Krzysztof

Re: [PATCH 2/2] arm64: dts: imx8mp: add reserve-memory nodes for DSP

[Iuliana Prodan]

On 9/12/2023 10:07 AM, Krzysztof Kozlowski wrote:
> On 12/09/2023 00:44, Iuliana Prodan (OSS) wrote:
>> From: Iuliana Prodan <iuliana.prodan@nxp.com>
>>
>> Add the reserve-memory nodes used by DSP when the rpmsg
>> feature is enabled.
>> These can be later used in a dsp node, like:
>> dsp: dsp@3b6e8000 {
>> 	compatible = "fsl,imx8mp-dsp";
>> 	reg = <0x3b6e8000 0x88000>;
>> 	mbox-names = "tx0", "rx0", "rxdb0";
>> 	mboxes = <&mu2 2 0>, <&mu2 2 1>,
>> 		<&mu2 3 0>, <&mu2 3 1>;
>> 	memory-region = <&dsp_vdev0buffer>, <&dsp_vdev0vring0>,
>> 		<&dsp_vdev0vring1>, <&dsp_reserved>;
>> 	status = "okay";
> Drop this example from commit msg, useless and not really correct.
Ok, will drop it. But this is a correct example, is just incomplete.
>> };
>>
>> Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com>
>> ---
>>   arch/arm64/boot/dts/freescale/imx8mp.dtsi | 12 ++++++++++++
>>   1 file changed, 12 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
>> index cc406bb338fe..eedc1921af62 100644
>> --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
>> +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
>> @@ -210,6 +210,18 @@
>>   		dsp_reserved: dsp@92400000 {
>>   			reg = <0 0x92400000 0 0x2000000>;
>>   			no-map;
> Please test the patches before sending. This does not build.

I've tested on remoteproc tree, but it seems I missed a bracket when 
sending upstream. Sorry abut this, will fix it in v2.

Should I test this on other tree(s)?

Thanks,
Iulia

> Best regards,
> Krzysztof
>

Re: [PATCH 2/2] arm64: dts: imx8mp: add reserve-memory nodes for DSP

[Krzysztof Kozlowski]

On 12/09/2023 10:13, Iuliana Prodan wrote:
> On 9/12/2023 10:07 AM, Krzysztof Kozlowski wrote:
>> On 12/09/2023 00:44, Iuliana Prodan (OSS) wrote:
>>> From: Iuliana Prodan <iuliana.prodan@nxp.com>
>>>
>>> Add the reserve-memory nodes used by DSP when the rpmsg
>>> feature is enabled.
>>> These can be later used in a dsp node, like:
>>> dsp: dsp@3b6e8000 {
>>> 	compatible = "fsl,imx8mp-dsp";
>>> 	reg = <0x3b6e8000 0x88000>;
>>> 	mbox-names = "tx0", "rx0", "rxdb0";
>>> 	mboxes = <&mu2 2 0>, <&mu2 2 1>,
>>> 		<&mu2 3 0>, <&mu2 3 1>;
>>> 	memory-region = <&dsp_vdev0buffer>, <&dsp_vdev0vring0>,
>>> 		<&dsp_vdev0vring1>, <&dsp_reserved>;
>>> 	status = "okay";
>> Drop this example from commit msg, useless and not really correct.
> Ok, will drop it. But this is a correct example, is just incomplete.

No, status=okay is redundant, thus it is not a correct example.

>>> };
>>>
>>> Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com>
>>> ---
>>>   arch/arm64/boot/dts/freescale/imx8mp.dtsi | 12 ++++++++++++
>>>   1 file changed, 12 insertions(+)
>>>
>>> diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
>>> index cc406bb338fe..eedc1921af62 100644
>>> --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
>>> +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
>>> @@ -210,6 +210,18 @@
>>>   		dsp_reserved: dsp@92400000 {
>>>   			reg = <0 0x92400000 0 0x2000000>;
>>>   			no-map;
>> Please test the patches before sending. This does not build.
> 
> I've tested on remoteproc tree, but it seems I missed a bracket when 
> sending upstream. Sorry abut this, will fix it in v2.

No, this is not how testing works. You must test this patch. This means
you tested something, then ported patch to entirely different tree,
resolved conflicts in buggy way and send it without testing. Nope.

> Should I test this on other tree(s)?

You test the patch on the tree you send it. What is the point to test it
on some old code, cherry-pick with bugs and then send?

If you have cross-tree dependencies between subsystem, isn't linux-next
for this?


Best regards,
Krzysztof

Re: [PATCH 2/2] arm64: dts: imx8mp: add reserve-memory nodes for DSP

[Iuliana Prodan]

On 9/12/2023 11:26 AM, Krzysztof Kozlowski wrote:
> On 12/09/2023 10:13, Iuliana Prodan wrote:
>> On 9/12/2023 10:07 AM, Krzysztof Kozlowski wrote:
>>> On 12/09/2023 00:44, Iuliana Prodan (OSS) wrote:
>>>> From: Iuliana Prodan <iuliana.prodan@nxp.com>
>>>>
>>>> Add the reserve-memory nodes used by DSP when the rpmsg
>>>> feature is enabled.
>>>> These can be later used in a dsp node, like:
>>>> dsp: dsp@3b6e8000 {
>>>> 	compatible = "fsl,imx8mp-dsp";
>>>> 	reg = <0x3b6e8000 0x88000>;
>>>> 	mbox-names = "tx0", "rx0", "rxdb0";
>>>> 	mboxes = <&mu2 2 0>, <&mu2 2 1>,
>>>> 		<&mu2 3 0>, <&mu2 3 1>;
>>>> 	memory-region = <&dsp_vdev0buffer>, <&dsp_vdev0vring0>,
>>>> 		<&dsp_vdev0vring1>, <&dsp_reserved>;
>>>> 	status = "okay";
>>> Drop this example from commit msg, useless and not really correct.
>> Ok, will drop it. But this is a correct example, is just incomplete.
> No, status=okay is redundant, thus it is not a correct example.
ok
>>>> };
>>>>
>>>> Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com>
>>>> ---
>>>>    arch/arm64/boot/dts/freescale/imx8mp.dtsi | 12 ++++++++++++
>>>>    1 file changed, 12 insertions(+)
>>>>
>>>> diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
>>>> index cc406bb338fe..eedc1921af62 100644
>>>> --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
>>>> +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
>>>> @@ -210,6 +210,18 @@
>>>>    		dsp_reserved: dsp@92400000 {
>>>>    			reg = <0 0x92400000 0 0x2000000>;
>>>>    			no-map;
>>> Please test the patches before sending. This does not build.
>> I've tested on remoteproc tree, but it seems I missed a bracket when
>> sending upstream. Sorry abut this, will fix it in v2.
> No, this is not how testing works. You must test this patch. This means
> you tested something, then ported patch to entirely different tree,
> resolved conflicts in buggy way and send it without testing. Nope.
>
>> Should I test this on other tree(s)?
> You test the patch on the tree you send it. What is the point to test it
> on some old code, cherry-pick with bugs and then send?
>
> If you have cross-tree dependencies between subsystem, isn't linux-next
> for this?

TBH, I don't know, that's why I asked.

For sure one patch is for remoteproc.
For the other, I don't know who will pick it, but I'll tested on 
linux-next, as you suggested.

Thanks,
Iulia

>
> Best regards,
> Krzysztof
>

Re: [PATCH 2/2] arm64: dts: imx8mp: add reserve-memory nodes for DSP

[Krzysztof Kozlowski]

On 12/09/2023 10:49, Iuliana Prodan wrote:
>>> Should I test this on other tree(s)?
>> You test the patch on the tree you send it. What is the point to test it
>> on some old code, cherry-pick with bugs and then send?
>>
>> If you have cross-tree dependencies between subsystem, isn't linux-next
>> for this?
> 
> TBH, I don't know, that's why I asked.
> 
> For sure one patch is for remoteproc.
> For the other, I don't know who will pick it, but I'll tested on 
> linux-next, as you suggested.

MAINTAINERS file (and get_maintainers.pl) will tell you. Specifically,
this does not look really related to remoteproc patch, so it should not
be together in one patchset.

Best regards,
Krzysztof

Re: [PATCH 2/2] arm64: dts: imx8mp: add reserve-memory nodes for DSP

[Iuliana Prodan]

On 9/12/2023 12:36 PM, Krzysztof Kozlowski wrote:
> On 12/09/2023 10:49, Iuliana Prodan wrote:
>>>> Should I test this on other tree(s)?
>>> You test the patch on the tree you send it. What is the point to test it
>>> on some old code, cherry-pick with bugs and then send?
>>>
>>> If you have cross-tree dependencies between subsystem, isn't linux-next
>>> for this?
>> TBH, I don't know, that's why I asked.
>>
>> For sure one patch is for remoteproc.
>> For the other, I don't know who will pick it, but I'll tested on
>> linux-next, as you suggested.
> MAINTAINERS file (and get_maintainers.pl) will tell you. Specifically,
> this does not look really related to remoteproc patch, so it should not
> be together in one patchset.

Hi Mathieu,

I need to send a v2 - to fix the dtsi missing bracket on patch 2.
So, should I keep the 2 patches together or send them separately?

Thanks,
Iulia

Re: [PATCH 2/2] arm64: dts: imx8mp: add reserve-memory nodes for DSP

[Mathieu Poirier]

On Tue, Sep 12, 2023 at 01:51:42PM +0300, Iuliana Prodan wrote:
> On 9/12/2023 12:36 PM, Krzysztof Kozlowski wrote:
> > On 12/09/2023 10:49, Iuliana Prodan wrote:
> > > > > Should I test this on other tree(s)?
> > > > You test the patch on the tree you send it. What is the point to test it
> > > > on some old code, cherry-pick with bugs and then send?
> > > > 
> > > > If you have cross-tree dependencies between subsystem, isn't linux-next
> > > > for this?
> > > TBH, I don't know, that's why I asked.
> > > 
> > > For sure one patch is for remoteproc.
> > > For the other, I don't know who will pick it, but I'll tested on
> > > linux-next, as you suggested.
> > MAINTAINERS file (and get_maintainers.pl) will tell you. Specifically,
> > this does not look really related to remoteproc patch, so it should not
> > be together in one patchset.
> 
> Hi Mathieu,
> 
> I need to send a v2 - to fix the dtsi missing bracket on patch 2.
> So, should I keep the 2 patches together or send them separately?
>

Marco is already aware of this patchset so I would keep them together.

> Thanks,
> Iulia
> 
> 
> 

Re: [PATCH 2/2] arm64: dts: imx8mp: add reserve-memory nodes for DSP

[Daniel Baluta]

On Tue, Sep 12, 2023 at 12:54 PM Iuliana Prodan <iuliana.prodan@nxp.com> wrote:
>
> On 9/12/2023 11:26 AM, Krzysztof Kozlowski wrote:
> > On 12/09/2023 10:13, Iuliana Prodan wrote:
> >> On 9/12/2023 10:07 AM, Krzysztof Kozlowski wrote:
> >>> On 12/09/2023 00:44, Iuliana Prodan (OSS) wrote:
> >>>> From: Iuliana Prodan <iuliana.prodan@nxp.com>
> >>>>
> >>>> Add the reserve-memory nodes used by DSP when the rpmsg
> >>>> feature is enabled.
> >>>> These can be later used in a dsp node, like:
> >>>> dsp: dsp@3b6e8000 {
> >>>>    compatible = "fsl,imx8mp-dsp";
> >>>>    reg = <0x3b6e8000 0x88000>;
> >>>>    mbox-names = "tx0", "rx0", "rxdb0";
> >>>>    mboxes = <&mu2 2 0>, <&mu2 2 1>,
> >>>>            <&mu2 3 0>, <&mu2 3 1>;
> >>>>    memory-region = <&dsp_vdev0buffer>, <&dsp_vdev0vring0>,
> >>>>            <&dsp_vdev0vring1>, <&dsp_reserved>;
> >>>>    status = "okay";
> >>> Drop this example from commit msg, useless and not really correct.
> >> Ok, will drop it. But this is a correct example, is just incomplete.
> > No, status=okay is redundant, thus it is not a correct example.
> ok
> >>>> };
> >>>>
> >>>> Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com>
> >>>> ---
> >>>>    arch/arm64/boot/dts/freescale/imx8mp.dtsi | 12 ++++++++++++
> >>>>    1 file changed, 12 insertions(+)
> >>>>
> >>>> diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> >>>> index cc406bb338fe..eedc1921af62 100644
> >>>> --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> >>>> +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> >>>> @@ -210,6 +210,18 @@
> >>>>                    dsp_reserved: dsp@92400000 {
> >>>>                            reg = <0 0x92400000 0 0x2000000>;
> >>>>                            no-map;
> >>> Please test the patches before sending. This does not build.
> >> I've tested on remoteproc tree, but it seems I missed a bracket when
> >> sending upstream. Sorry abut this, will fix it in v2.
> > No, this is not how testing works. You must test this patch. This means
> > you tested something, then ported patch to entirely different tree,
> > resolved conflicts in buggy way and send it without testing. Nope.
> >
> >> Should I test this on other tree(s)?
> > You test the patch on the tree you send it. What is the point to test it
> > on some old code, cherry-pick with bugs and then send?
> >
> > If you have cross-tree dependencies between subsystem, isn't linux-next
> > for this?

linux-next tree is the tree we want.

Re: [PATCH 2/2] arm64: dts: imx8mp: add reserve-memory nodes for DSP

[Marco Felsch]

Hi Iuliana,

On 23-09-12, Iuliana Prodan (OSS) wrote:
> From: Iuliana Prodan <iuliana.prodan@nxp.com>
> 
> Add the reserve-memory nodes used by DSP when the rpmsg
> feature is enabled.
> These can be later used in a dsp node, like:
> dsp: dsp@3b6e8000 {
> 	compatible = "fsl,imx8mp-dsp";
> 	reg = <0x3b6e8000 0x88000>;
> 	mbox-names = "tx0", "rx0", "rxdb0";
> 	mboxes = <&mu2 2 0>, <&mu2 2 1>,
> 		<&mu2 3 0>, <&mu2 3 1>;
> 	memory-region = <&dsp_vdev0buffer>, <&dsp_vdev0vring0>,
> 		<&dsp_vdev0vring1>, <&dsp_reserved>;
> 	status = "okay";
> };
> 
> Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com>
> ---
>  arch/arm64/boot/dts/freescale/imx8mp.dtsi | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> index cc406bb338fe..eedc1921af62 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> @@ -210,6 +210,18 @@
>  		dsp_reserved: dsp@92400000 {
>  			reg = <0 0x92400000 0 0x2000000>;
>  			no-map;

This seems broken.

Regards,
  Marco

> +		dsp_vdev0vring0: vdev0vring0@942f0000 {
> +			reg = <0 0x942f0000 0 0x8000>;
> +			no-map;
> +		};
> +		dsp_vdev0vring1: vdev0vring1@942f8000 {
> +			reg = <0 0x942f8000 0 0x8000>;
> +			no-map;
> +		};
> +		dsp_vdev0buffer: vdev0buffer@94300000 {
> +			compatible = "shared-dma-pool";
> +			reg = <0 0x94300000 0 0x100000>;
> +			no-map;
>  		};
>  	};
>  
> -- 
> 2.17.1
> 
> 
> 

Re: [PATCH 2/2] arm64: dts: imx8mp: add reserve-memory nodes for DSP

[Iuliana Prodan]

On 9/12/2023 2:30 PM, Marco Felsch wrote:
> Hi Iuliana,
>
> On 23-09-12, Iuliana Prodan (OSS) wrote:
>> From: Iuliana Prodan <iuliana.prodan@nxp.com>
>>
>> Add the reserve-memory nodes used by DSP when the rpmsg
>> feature is enabled.
>> These can be later used in a dsp node, like:
>> dsp: dsp@3b6e8000 {
>> 	compatible = "fsl,imx8mp-dsp";
>> 	reg = <0x3b6e8000 0x88000>;
>> 	mbox-names = "tx0", "rx0", "rxdb0";
>> 	mboxes = <&mu2 2 0>, <&mu2 2 1>,
>> 		<&mu2 3 0>, <&mu2 3 1>;
>> 	memory-region = <&dsp_vdev0buffer>, <&dsp_vdev0vring0>,
>> 		<&dsp_vdev0vring1>, <&dsp_reserved>;
>> 	status = "okay";
>> };
>>
>> Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com>
>> ---
>>   arch/arm64/boot/dts/freescale/imx8mp.dtsi | 12 ++++++++++++
>>   1 file changed, 12 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
>> index cc406bb338fe..eedc1921af62 100644
>> --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
>> +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
>> @@ -210,6 +210,18 @@
>>   		dsp_reserved: dsp@92400000 {
>>   			reg = <0 0x92400000 0 0x2000000>;
>>   			no-map;
> This seems broken.


You're right.
Already answered to this here: 
https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg2558691.html

Thanks,
Iulia

> Regards,
>    Marco
>
>> +		dsp_vdev0vring0: vdev0vring0@942f0000 {
>> +			reg = <0 0x942f0000 0 0x8000>;
>> +			no-map;
>> +		};
>> +		dsp_vdev0vring1: vdev0vring1@942f8000 {
>> +			reg = <0 0x942f8000 0 0x8000>;
>> +			no-map;
>> +		};
>> +		dsp_vdev0buffer: vdev0buffer@94300000 {
>> +			compatible = "shared-dma-pool";
>> +			reg = <0 0x94300000 0 0x100000>;
>> +			no-map;
>>   		};
>>   	};
>>   
>> -- 
>> 2.17.1
>>
>>
>>

Re: [PATCH 2/2] arm64: dts: imx8mp: add reserve-memory nodes for DSP

[Marco Felsch]

On 23-09-12, Iuliana Prodan wrote:
> On 9/12/2023 2:30 PM, Marco Felsch wrote:
> > Hi Iuliana,
> > 
> > On 23-09-12, Iuliana Prodan (OSS) wrote:
> > > From: Iuliana Prodan <iuliana.prodan@nxp.com>
> > > 
> > > Add the reserve-memory nodes used by DSP when the rpmsg
> > > feature is enabled.
> > > These can be later used in a dsp node, like:
> > > dsp: dsp@3b6e8000 {
> > > 	compatible = "fsl,imx8mp-dsp";
> > > 	reg = <0x3b6e8000 0x88000>;
> > > 	mbox-names = "tx0", "rx0", "rxdb0";
> > > 	mboxes = <&mu2 2 0>, <&mu2 2 1>,
> > > 		<&mu2 3 0>, <&mu2 3 1>;
> > > 	memory-region = <&dsp_vdev0buffer>, <&dsp_vdev0vring0>,
> > > 		<&dsp_vdev0vring1>, <&dsp_reserved>;
> > > 	status = "okay";
> > > };
> > > 
> > > Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com>
> > > ---
> > >   arch/arm64/boot/dts/freescale/imx8mp.dtsi | 12 ++++++++++++
> > >   1 file changed, 12 insertions(+)
> > > 
> > > diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> > > index cc406bb338fe..eedc1921af62 100644
> > > --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> > > +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> > > @@ -210,6 +210,18 @@
> > >   		dsp_reserved: dsp@92400000 {
> > >   			reg = <0 0x92400000 0 0x2000000>;
> > >   			no-map;
> > This seems broken.
> 
> 
> You're right.
> Already answered to this here:
> https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg2558691.html

Sorry, saw it to late..

Regards,
  Marco