* [PATCH] arm64: dts: qcom: msm8992-lg-bullhead: Correct memory overlap with SMEM region
@ 2023-01-28 5:52 Jamie Douglass
2023-01-28 14:30 ` Konrad Dybcio
2023-01-30 14:19 ` Petr Vorel
0 siblings, 2 replies; 6+ messages in thread
From: Jamie Douglass @ 2023-01-28 5:52 UTC (permalink / raw)
To: Andy Gross, Bjorn Andersson, Konrad Dybcio, Rob Herring,
Krzysztof Kozlowski, linux-arm-msm, devicetree, linux-kernel
Cc: ~postmarketos/upstreaming, phone-devel, Petr Vorel,
Dominik Kobinski, Konrad Dybico, Jamie Douglass
A previously committed reserved memory region was overlapping with the
SMEM memory region, causing an error message in dmesg:
OF: reserved mem: OVERLAP DETECTED!
reserved@5000000 (0x0000000005000000--0x0000000007200000)
overlaps with smem_region@6a00000
(0x0000000006a00000--0x0000000006c00000)
This patch splits the previous reserved memory region into two
reserved sections either side of the SMEM memory region.
Signed-off-by: Jamie Douglass <jamiemdouglass@gmail.com>
---
arch/arm64/boot/dts/qcom/msm8992-lg-bullhead.dtsi | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/msm8992-lg-bullhead.dtsi b/arch/arm64/boot/dts/qcom/msm8992-lg-bullhead.dtsi
index 79de9cc395c4..5e375ea73c79 100644
--- a/arch/arm64/boot/dts/qcom/msm8992-lg-bullhead.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8992-lg-bullhead.dtsi
@@ -53,8 +53,13 @@ cont_splash_mem: memory@3400000 {
no-map;
};
- removed_region: reserved@5000000 {
- reg = <0 0x05000000 0 0x2200000>;
+ reserved@5000000 {
+ reg = <0x0 0x05000000 0x0 0x1a00000>;
+ no-map;
+ };
+
+ reserved@6c00000 {
+ reg = <0x0 0x06c00000 0x0 0x400000>;
no-map;
};
};
--
2.25.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH] arm64: dts: qcom: msm8992-lg-bullhead: Correct memory overlap with SMEM region
2023-01-28 5:52 [PATCH] arm64: dts: qcom: msm8992-lg-bullhead: Correct memory overlap with SMEM region Jamie Douglass
@ 2023-01-28 14:30 ` Konrad Dybcio
2023-01-28 22:30 ` Jamie Douglass
2023-01-30 14:19 ` Petr Vorel
1 sibling, 1 reply; 6+ messages in thread
From: Konrad Dybcio @ 2023-01-28 14:30 UTC (permalink / raw)
To: Jamie Douglass, Andy Gross, Bjorn Andersson, Rob Herring,
Krzysztof Kozlowski, linux-arm-msm, devicetree, linux-kernel
Cc: ~postmarketos/upstreaming, phone-devel, Petr Vorel,
Dominik Kobinski, Konrad Dybico
On 28.01.2023 06:52, Jamie Douglass wrote:
> A previously committed reserved memory region was overlapping with the
> SMEM memory region, causing an error message in dmesg:
> OF: reserved mem: OVERLAP DETECTED!
> reserved@5000000 (0x0000000005000000--0x0000000007200000)
> overlaps with smem_region@6a00000
> (0x0000000006a00000--0x0000000006c00000)
> This patch splits the previous reserved memory region into two
> reserved sections either side of the SMEM memory region.
>
> Signed-off-by: Jamie Douglass <jamiemdouglass@gmail.com>
> ---
> arch/arm64/boot/dts/qcom/msm8992-lg-bullhead.dtsi | 9 +++++++--
> 1 file changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/msm8992-lg-bullhead.dtsi b/arch/arm64/boot/dts/qcom/msm8992-lg-bullhead.dtsi
> index 79de9cc395c4..5e375ea73c79 100644
> --- a/arch/arm64/boot/dts/qcom/msm8992-lg-bullhead.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8992-lg-bullhead.dtsi
> @@ -53,8 +53,13 @@ cont_splash_mem: memory@3400000 {
> no-map;
> };
>
> - removed_region: reserved@5000000 {
> - reg = <0 0x05000000 0 0x2200000>;
> + reserved@5000000 {
> + reg = <0x0 0x05000000 0x0 0x1a00000>;
> + no-map;
> + };
> +
> + reserved@6c00000 {
> + reg = <0x0 0x06c00000 0x0 0x400000>;
I think you made this 0x200000 too small, unless there
is supposed to be functional change.
Konrad
> no-map;
> };
> };
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] arm64: dts: qcom: msm8992-lg-bullhead: Correct memory overlap with SMEM region
2023-01-28 14:30 ` Konrad Dybcio
@ 2023-01-28 22:30 ` Jamie Douglass
0 siblings, 0 replies; 6+ messages in thread
From: Jamie Douglass @ 2023-01-28 22:30 UTC (permalink / raw)
To: Konrad Dybcio, Andy Gross, Bjorn Andersson, Rob Herring,
Krzysztof Kozlowski, linux-arm-msm, devicetree, linux-kernel
Cc: ~postmarketos/upstreaming, phone-devel, Petr Vorel,
Dominik Kobinski, Konrad Dybico
My apologies, I completely forgot that I did that!
That change was necessary, because extending the reserved region
past 0x7000000 creates another memory overlap, this time with the
mpss_mem region:
OF: reserved mem: OVERLAP DETECTED!
reserved@6c00000 (0x0000000006c00000--0x0000000007200000)
overlaps with memory@7000000
(0x0000000007000000--0x000000000ca00000)
So my original patch is correct.
Thanks,
Jamie
On Sun, 29 Jan 2023 at 01:30, Konrad Dybcio <konrad.dybcio@linaro.org> wrote:
>
>
>
> On 28.01.2023 06:52, Jamie Douglass wrote:
> > A previously committed reserved memory region was overlapping with the
> > SMEM memory region, causing an error message in dmesg:
> > OF: reserved mem: OVERLAP DETECTED!
> > reserved@5000000 (0x0000000005000000--0x0000000007200000)
> > overlaps with smem_region@6a00000
> > (0x0000000006a00000--0x0000000006c00000)
> > This patch splits the previous reserved memory region into two
> > reserved sections either side of the SMEM memory region.
> >
> > Signed-off-by: Jamie Douglass <jamiemdouglass@gmail.com>
> > ---
> > arch/arm64/boot/dts/qcom/msm8992-lg-bullhead.dtsi | 9 +++++++--
> > 1 file changed, 7 insertions(+), 2 deletions(-)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/msm8992-lg-bullhead.dtsi b/arch/arm64/boot/dts/qcom/msm8992-lg-bullhead.dtsi
> > index 79de9cc395c4..5e375ea73c79 100644
> > --- a/arch/arm64/boot/dts/qcom/msm8992-lg-bullhead.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/msm8992-lg-bullhead.dtsi
> > @@ -53,8 +53,13 @@ cont_splash_mem: memory@3400000 {
> > no-map;
> > };
> >
> > - removed_region: reserved@5000000 {
> > - reg = <0 0x05000000 0 0x2200000>;
> > + reserved@5000000 {
> > + reg = <0x0 0x05000000 0x0 0x1a00000>;
> > + no-map;
> > + };
> > +
> > + reserved@6c00000 {
> > + reg = <0x0 0x06c00000 0x0 0x400000>;
> I think you made this 0x200000 too small, unless there
> is supposed to be functional change.
>
> Konrad
> > no-map;
> > };
> > };
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] arm64: dts: qcom: msm8992-lg-bullhead: Correct memory overlap with SMEM region
2023-01-28 5:52 [PATCH] arm64: dts: qcom: msm8992-lg-bullhead: Correct memory overlap with SMEM region Jamie Douglass
2023-01-28 14:30 ` Konrad Dybcio
@ 2023-01-30 14:19 ` Petr Vorel
2023-01-30 14:21 ` Konrad Dybcio
1 sibling, 1 reply; 6+ messages in thread
From: Petr Vorel @ 2023-01-30 14:19 UTC (permalink / raw)
To: Jamie Douglass
Cc: Andy Gross, Bjorn Andersson, Konrad Dybcio, Rob Herring,
Krzysztof Kozlowski, linux-arm-msm, devicetree, linux-kernel,
~postmarketos/upstreaming, phone-devel, Dominik Kobinski,
Konrad Dybico
Hi Jamie,
On Sat, 28 Jan 2023 at 06:53, Jamie Douglass <jamiemdouglass@gmail.com> wrote:
>
> A previously committed reserved memory region was overlapping with the
IMHO there should be marked commit which you're fixing:
Fixes: 22c7e1a0fa45 ("arm64: dts: msm8992-bullhead: add memory hole region")
> SMEM memory region, causing an error message in dmesg:
> OF: reserved mem: OVERLAP DETECTED!
> reserved@5000000 (0x0000000005000000--0x0000000007200000)
> overlaps with smem_region@6a00000
> (0x0000000006a00000--0x0000000006c00000)
> This patch splits the previous reserved memory region into two
> reserved sections either side of the SMEM memory region.
Reviewed-by: Petr Vorel <pvorel@suse.cz>
Tested-by: Petr Vorel <pvorel@suse.cz>
...
> +++ b/arch/arm64/boot/dts/qcom/msm8992-lg-bullhead.dtsi
> @@ -53,8 +53,13 @@ cont_splash_mem: memory@3400000 {
> no-map;
> };
>
> - removed_region: reserved@5000000 {
> - reg = <0 0x05000000 0 0x2200000>;
> + reserved@5000000 {
Can we keep "removed_region:" ?
removed_region: reserved@5000000 {
> + reg = <0x0 0x05000000 0x0 0x1a00000>;
> + no-map;
> + };
> +
> + reserved@6c00000 {
Not sure which label to add, maybe append 2?
removed_region2: reserved@6c00000 {
@Konrad @Krzysztof WDYT?
Kind regards,
Petr
> + reg = <0x0 0x06c00000 0x0 0x400000>;
> no-map;
> };
> };
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] arm64: dts: qcom: msm8992-lg-bullhead: Correct memory overlap with SMEM region
2023-01-30 14:19 ` Petr Vorel
@ 2023-01-30 14:21 ` Konrad Dybcio
2023-01-30 15:03 ` Petr Vorel
0 siblings, 1 reply; 6+ messages in thread
From: Konrad Dybcio @ 2023-01-30 14:21 UTC (permalink / raw)
To: Petr Vorel, Jamie Douglass
Cc: Andy Gross, Bjorn Andersson, Rob Herring, Krzysztof Kozlowski,
linux-arm-msm, devicetree, linux-kernel,
~postmarketos/upstreaming, phone-devel, Dominik Kobinski,
Konrad Dybico
On 30.01.2023 15:19, Petr Vorel wrote:
> Hi Jamie,
>
> On Sat, 28 Jan 2023 at 06:53, Jamie Douglass <jamiemdouglass@gmail.com> wrote:
>>
>> A previously committed reserved memory region was overlapping with the
>
> IMHO there should be marked commit which you're fixing:
> Fixes: 22c7e1a0fa45 ("arm64: dts: msm8992-bullhead: add memory hole region")
Yes
>
>> SMEM memory region, causing an error message in dmesg:
>> OF: reserved mem: OVERLAP DETECTED!
>> reserved@5000000 (0x0000000005000000--0x0000000007200000)
>> overlaps with smem_region@6a00000
>> (0x0000000006a00000--0x0000000006c00000)
>> This patch splits the previous reserved memory region into two
>> reserved sections either side of the SMEM memory region.
>
> Reviewed-by: Petr Vorel <pvorel@suse.cz>
> Tested-by: Petr Vorel <pvorel@suse.cz>
> ...
>> +++ b/arch/arm64/boot/dts/qcom/msm8992-lg-bullhead.dtsi
>> @@ -53,8 +53,13 @@ cont_splash_mem: memory@3400000 {
>> no-map;
>> };
>>
>> - removed_region: reserved@5000000 {
>> - reg = <0 0x05000000 0 0x2200000>;
>> + reserved@5000000 {
> Can we keep "removed_region:" ?
> removed_region: reserved@5000000 {
>
>> + reg = <0x0 0x05000000 0x0 0x1a00000>;
>> + no-map;
>> + };
>> +
>> + reserved@6c00000 {
> Not sure which label to add, maybe append 2?
> removed_region2: reserved@6c00000 {
> @Konrad @Krzysztof WDYT?
Generally, if you don't expect that there'll be a need to
amend/reference the node from somewhere else, the label is
rather useless..
Konrad
>
> Kind regards,
> Petr
>
>> + reg = <0x0 0x06c00000 0x0 0x400000>;
>> no-map;
>> };
>> };
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] arm64: dts: qcom: msm8992-lg-bullhead: Correct memory overlap with SMEM region
2023-01-30 14:21 ` Konrad Dybcio
@ 2023-01-30 15:03 ` Petr Vorel
0 siblings, 0 replies; 6+ messages in thread
From: Petr Vorel @ 2023-01-30 15:03 UTC (permalink / raw)
To: Konrad Dybcio
Cc: Jamie Douglass, Andy Gross, Bjorn Andersson, Rob Herring,
Krzysztof Kozlowski, linux-arm-msm, devicetree, linux-kernel,
~postmarketos/upstreaming, phone-devel, Dominik Kobinski,
Konrad Dybico
On Mon, 30 Jan 2023 at 15:21, Konrad Dybcio <konrad.dybcio@linaro.org> wrote:
>
>
>
> On 30.01.2023 15:19, Petr Vorel wrote:
> > Hi Jamie,
> >
> > On Sat, 28 Jan 2023 at 06:53, Jamie Douglass <jamiemdouglass@gmail.com> wrote:
> >>
> >> A previously committed reserved memory region was overlapping with the
> >
> > IMHO there should be marked commit which you're fixing:
> > Fixes: 22c7e1a0fa45 ("arm64: dts: msm8992-bullhead: add memory hole region")
> Yes
>
> >
> >> SMEM memory region, causing an error message in dmesg:
> >> OF: reserved mem: OVERLAP DETECTED!
> >> reserved@5000000 (0x0000000005000000--0x0000000007200000)
> >> overlaps with smem_region@6a00000
> >> (0x0000000006a00000--0x0000000006c00000)
> >> This patch splits the previous reserved memory region into two
> >> reserved sections either side of the SMEM memory region.
> >
> > Reviewed-by: Petr Vorel <pvorel@suse.cz>
> > Tested-by: Petr Vorel <pvorel@suse.cz>
> > ...
> >> +++ b/arch/arm64/boot/dts/qcom/msm8992-lg-bullhead.dtsi
> >> @@ -53,8 +53,13 @@ cont_splash_mem: memory@3400000 {
> >> no-map;
> >> };
> >>
> >> - removed_region: reserved@5000000 {
> >> - reg = <0 0x05000000 0 0x2200000>;
> >> + reserved@5000000 {
> > Can we keep "removed_region:" ?
> > removed_region: reserved@5000000 {
> >
> >> + reg = <0x0 0x05000000 0x0 0x1a00000>;
> >> + no-map;
> >> + };
> >> +
> >> + reserved@6c00000 {
> > Not sure which label to add, maybe append 2?
> > removed_region2: reserved@6c00000 {
> > @Konrad @Krzysztof WDYT?
> Generally, if you don't expect that there'll be a need to
> amend/reference the node from somewhere else, the label is
> rather useless..
Thank you for info. To be honest I have no idea. Previously the label
was added, but that does not mean that it's used.
'git grep -l removed_region' shows only labels in few dts/dtsi, IMHO
it's not used. IMHO it looks ok to avoid it.
Kind regards,
Petr
>
> Konrad
>
> >
> > Kind regards,
> > Petr
> >
> >> + reg = <0x0 0x06c00000 0x0 0x400000>;
> >> no-map;
> >> };
> >> };
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2023-01-30 15:03 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-01-28 5:52 [PATCH] arm64: dts: qcom: msm8992-lg-bullhead: Correct memory overlap with SMEM region Jamie Douglass
2023-01-28 14:30 ` Konrad Dybcio
2023-01-28 22:30 ` Jamie Douglass
2023-01-30 14:19 ` Petr Vorel
2023-01-30 14:21 ` Konrad Dybcio
2023-01-30 15:03 ` Petr Vorel
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