* [PATCH] arm64: dts: mediatek: mt8195-demo: fix the memory size of node secmon
@ 2022-09-22 9:16 Macpaul Lin
2022-09-26 7:05 ` Miles Chen
2022-09-29 8:47 ` [PATCH v2] arm64: dts: mediatek: mt8195-demo: fix the memory size of node secmon Macpaul Lin
0 siblings, 2 replies; 6+ messages in thread
From: Macpaul Lin @ 2022-09-22 9:16 UTC (permalink / raw)
To: Rob Herring, Krzysztof Kozlowski, Matthias Brugger,
Fabien Parent, devicetree, linux-arm-kernel, linux-mediatek,
linux-kernel
Cc: Miles Chen, Bear Wang, Pablo Sun, Macpaul Lin, Macpaul Lin,
linux-usb, stable
The size of device tree node secmon (bl31_secmon_reserved) was
incorrect. It should be increased to 2MiB (0x200000).
The origin setting will cause some abnormal behavior due to
trusted-firmware-a and related firmware didn't load correctly.
The incorrect behavior may vary because of different software stacks.
For example, it will cause build error in some Yocto project because
it will check if there was enough memory to load trusted-firmware-a
to the reserved memory.
Cc: stable@vger.kernel.org # v5.19
Fixes: 6147314aeedc ("arm64: dts: mediatek: Add device-tree for MT8195 Demo board")
Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>
---
arch/arm64/boot/dts/mediatek/mt8195-demo.dts | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/mediatek/mt8195-demo.dts b/arch/arm64/boot/dts/mediatek/mt8195-demo.dts
index 4fbd99eb496a..dec85d254838 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195-demo.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8195-demo.dts
@@ -56,10 +56,10 @@
#size-cells = <2>;
ranges;
- /* 192 KiB reserved for ARM Trusted Firmware (BL31) */
+ /* 2 MiB reserved for ARM Trusted Firmware (BL31) */
bl31_secmon_reserved: secmon@54600000 {
no-map;
- reg = <0 0x54600000 0x0 0x30000>;
+ reg = <0 0x54600000 0x0 0x200000>;
};
/* 12 MiB reserved for OP-TEE (BL32)
--
2.18.0
_______________________________________________
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH] arm64: dts: mediatek: mt8195-demo: fix the memory size of node secmon
2022-09-22 9:16 [PATCH] arm64: dts: mediatek: mt8195-demo: fix the memory size of node secmon Macpaul Lin
@ 2022-09-26 7:05 ` Miles Chen
2022-09-27 4:00 ` Macpaul Lin
2022-09-29 8:47 ` [PATCH v2] arm64: dts: mediatek: mt8195-demo: fix the memory size of node secmon Macpaul Lin
1 sibling, 1 reply; 6+ messages in thread
From: Miles Chen @ 2022-09-26 7:05 UTC (permalink / raw)
To: macpaul.lin
Cc: bear.wang, devicetree, fparent, krzysztof.kozlowski+dt,
linux-arm-kernel, linux-kernel, linux-mediatek, linux-usb,
macpaul, matthias.bgg, miles.chen, pablo.sun, robh+dt, stable
Hi Macpaul,
> The size of device tree node secmon (bl31_secmon_reserved) was
> incorrect. It should be increased to 2MiB (0x200000).
192K should work when the patch(6147314aeedc) was accepted.
Does the trusted-firmware-a get larger now, so we need to
increase the size to 2MiB?
thanks,
Miles
>
> The origin setting will cause some abnormal behavior due to
> trusted-firmware-a and related firmware didn't load correctly.
> The incorrect behavior may vary because of different software stacks.
> For example, it will cause build error in some Yocto project because
> it will check if there was enough memory to load trusted-firmware-a
> to the reserved memory.
>
> Cc: stable@vger.kernel.org # v5.19
> Fixes: 6147314aeedc ("arm64: dts: mediatek: Add device-tree for MT8195 Demo board")
> Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] arm64: dts: mediatek: mt8195-demo: fix the memory size of node secmon
2022-09-26 7:05 ` Miles Chen
@ 2022-09-27 4:00 ` Macpaul Lin
2022-09-28 1:47 ` [PATCH] arm64: dts: mediatek: mt8195-demo: fix the memory size of Miles Chen
0 siblings, 1 reply; 6+ messages in thread
From: Macpaul Lin @ 2022-09-27 4:00 UTC (permalink / raw)
To: Miles Chen
Cc: bear.wang, devicetree, fparent, krzysztof.kozlowski+dt,
linux-arm-kernel, linux-kernel, linux-mediatek, linux-usb,
macpaul, matthias.bgg, pablo.sun, robh+dt, stable
On 9/26/22 15:05, Miles Chen wrote:
> Hi Macpaul,
>
>> The size of device tree node secmon (bl31_secmon_reserved) was
>> incorrect. It should be increased to 2MiB (0x200000).
>
> 192K should work when the patch(6147314aeedc) was accepted.
> Does the trusted-firmware-a get larger now, so we need to
> increase the size to 2MiB?
>
> thanks,
> Miles
When mt8195-demo.dts sent to the upstream, at that time the size of
BL31 was small. Because supported functions and modules in BL31 are
basic sets when the board was under early development stage.
Now BL31 includes more firmwares of coprocessors and maturer functions
so the size has grown bigger in real applications. According to the
value reported by customers, we think reserved 2MiB for BL31 might be
enough for maybe the following 2 or 3 years.
>>
>> The origin setting will cause some abnormal behavior due to
>> trusted-firmware-a and related firmware didn't load correctly.
>> The incorrect behavior may vary because of different software stacks.
>> For example, it will cause build error in some Yocto project because
>> it will check if there was enough memory to load trusted-firmware-a
>> to the reserved memory.
>>
>> Cc: stable@vger.kernel.org # v5.19
>> Fixes: 6147314aeedc ("arm64: dts: mediatek: Add device-tree for MT8195 Demo board")
>> Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>
Thanks
Macpaul Lin
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] arm64: dts: mediatek: mt8195-demo: fix the memory size of
2022-09-27 4:00 ` Macpaul Lin
@ 2022-09-28 1:47 ` Miles Chen
0 siblings, 0 replies; 6+ messages in thread
From: Miles Chen @ 2022-09-28 1:47 UTC (permalink / raw)
To: macpaul.lin
Cc: bear.wang, devicetree, fparent, krzysztof.kozlowski+dt,
linux-arm-kernel, linux-kernel, linux-mediatek, linux-usb,
macpaul, matthias.bgg, miles.chen, pablo.sun, robh+dt, stable
>On 9/26/22 15:05, Miles Chen wrote:
>> Hi Macpaul,
>>
>>> The size of device tree node secmon (bl31_secmon_reserved) was
>>> incorrect. It should be increased to 2MiB (0x200000).
>>
>> 192K should work when the patch(6147314aeedc) was accepted.
>> Does the trusted-firmware-a get larger now, so we need to
>> increase the size to 2MiB?
>>
>> thanks,
>> Miles
>
>When mt8195-demo.dts sent to the upstream, at that time the size of
>BL31 was small. Because supported functions and modules in BL31 are
>basic sets when the board was under early development stage.
>
>Now BL31 includes more firmwares of coprocessors and maturer functions
>so the size has grown bigger in real applications. According to the
>value reported by customers, we think reserved 2MiB for BL31 might be
>enough for maybe the following 2 or 3 years.
Thanks for your explanation,
please add this to the commit message and submit next version.
With that, feel free to add:
Reviewed-by: Miles Chen <miles.chen@mediatek.com>
thanks,
Miles
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v2] arm64: dts: mediatek: mt8195-demo: fix the memory size of node secmon
2022-09-22 9:16 [PATCH] arm64: dts: mediatek: mt8195-demo: fix the memory size of node secmon Macpaul Lin
2022-09-26 7:05 ` Miles Chen
@ 2022-09-29 8:47 ` Macpaul Lin
2022-10-24 6:18 ` Macpaul Lin
1 sibling, 1 reply; 6+ messages in thread
From: Macpaul Lin @ 2022-09-29 8:47 UTC (permalink / raw)
To: Rob Herring, Krzysztof Kozlowski, Matthias Brugger,
Fabien Parent, devicetree, linux-arm-kernel, linux-mediatek,
linux-kernel
Cc: Miles Chen, Bear Wang, Pablo Sun, Macpaul Lin, Macpaul Lin,
linux-usb, stable
The size of device tree node secmon (bl31_secmon_reserved) was
incorrect. It should be increased to 2MiB (0x200000).
The origin setting will cause some abnormal behavior due to
trusted-firmware-a and related firmware didn't load correctly.
The incorrect behavior may vary because of different software stacks.
For example, it will cause build error in some Yocto project because
it will check if there was enough memory to load trusted-firmware-a
to the reserved memory.
When mt8195-demo.dts sent to the upstream, at that time the size of
BL31 was small. Because supported functions and modules in BL31 are
basic sets when the board was under early development stage.
Now BL31 includes more firmwares of coprocessors and maturer functions
so the size has grown bigger in real applications. According to the value
reported by customers, we think reserved 2MiB for BL31 might be enough
for maybe the following 2 or 3 years.
Cc: stable@vger.kernel.org # v5.19
Fixes: 6147314aeedc ("arm64: dts: mediatek: Add device-tree for MT8195 Demo board")
Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>
Reviewed-by: Miles Chen <miles.chen@mediatek.com>
---
Changes for v2
- Add more information about the size difference for BL31 in commit message.
Thanks for Miles's review.
arch/arm64/boot/dts/mediatek/mt8195-demo.dts | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/mediatek/mt8195-demo.dts b/arch/arm64/boot/dts/mediatek/mt8195-demo.dts
index 4fbd99eb496a..dec85d254838 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195-demo.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8195-demo.dts
@@ -56,10 +56,10 @@
#size-cells = <2>;
ranges;
- /* 192 KiB reserved for ARM Trusted Firmware (BL31) */
+ /* 2 MiB reserved for ARM Trusted Firmware (BL31) */
bl31_secmon_reserved: secmon@54600000 {
no-map;
- reg = <0 0x54600000 0x0 0x30000>;
+ reg = <0 0x54600000 0x0 0x200000>;
};
/* 12 MiB reserved for OP-TEE (BL32)
--
2.18.0
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH v2] arm64: dts: mediatek: mt8195-demo: fix the memory size of node secmon
2022-09-29 8:47 ` [PATCH v2] arm64: dts: mediatek: mt8195-demo: fix the memory size of node secmon Macpaul Lin
@ 2022-10-24 6:18 ` Macpaul Lin
0 siblings, 0 replies; 6+ messages in thread
From: Macpaul Lin @ 2022-10-24 6:18 UTC (permalink / raw)
To: Rob Herring, Krzysztof Kozlowski, Matthias Brugger,
Fabien Parent, devicetree, linux-arm-kernel, linux-mediatek,
linux-kernel
Cc: Miles Chen, Bear Wang, Pablo Sun, Macpaul Lin, linux-usb, stable,
Matthias Brugger
On 9/29/22 16:47, Macpaul Lin wrote:
> The size of device tree node secmon (bl31_secmon_reserved) was
> incorrect. It should be increased to 2MiB (0x200000).
>
> The origin setting will cause some abnormal behavior due to
> trusted-firmware-a and related firmware didn't load correctly.
> The incorrect behavior may vary because of different software stacks.
> For example, it will cause build error in some Yocto project because
> it will check if there was enough memory to load trusted-firmware-a
> to the reserved memory.
>
> When mt8195-demo.dts sent to the upstream, at that time the size of
> BL31 was small. Because supported functions and modules in BL31 are
> basic sets when the board was under early development stage.
>
> Now BL31 includes more firmwares of coprocessors and maturer functions
> so the size has grown bigger in real applications. According to the value
> reported by customers, we think reserved 2MiB for BL31 might be enough
> for maybe the following 2 or 3 years.
Dear Matthias, sorry for a gentle reminder. MediaTek hope this simple
fix could be applied to 6.1-rc and be picked-up to current stable tree
after v5.19. Thanks a lot.
> Cc: stable@vger.kernel.org # v5.19
> Fixes: 6147314aeedc ("arm64: dts: mediatek: Add device-tree for MT8195 Demo board")
> Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>
> Reviewed-by: Miles Chen <miles.chen@mediatek.com>
> ---
> Changes for v2
> - Add more information about the size difference for BL31 in commit message.
> Thanks for Miles's review.
>
> arch/arm64/boot/dts/mediatek/mt8195-demo.dts | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/mediatek/mt8195-demo.dts b/arch/arm64/boot/dts/mediatek/mt8195-demo.dts
> index 4fbd99eb496a..dec85d254838 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8195-demo.dts
> +++ b/arch/arm64/boot/dts/mediatek/mt8195-demo.dts
> @@ -56,10 +56,10 @@
> #size-cells = <2>;
> ranges;
>
> - /* 192 KiB reserved for ARM Trusted Firmware (BL31) */
> + /* 2 MiB reserved for ARM Trusted Firmware (BL31) */
> bl31_secmon_reserved: secmon@54600000 {
> no-map;
> - reg = <0 0x54600000 0x0 0x30000>;
> + reg = <0 0x54600000 0x0 0x200000>;
> };
>
> /* 12 MiB reserved for OP-TEE (BL32)
Regards,
Macpaul Lin
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 6+ messages in thread
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2022-09-22 9:16 [PATCH] arm64: dts: mediatek: mt8195-demo: fix the memory size of node secmon Macpaul Lin
2022-09-26 7:05 ` Miles Chen
2022-09-27 4:00 ` Macpaul Lin
2022-09-28 1:47 ` [PATCH] arm64: dts: mediatek: mt8195-demo: fix the memory size of Miles Chen
2022-09-29 8:47 ` [PATCH v2] arm64: dts: mediatek: mt8195-demo: fix the memory size of node secmon Macpaul Lin
2022-10-24 6:18 ` Macpaul Lin
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