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arm64: dts: qcom: sc8280xp: Define CMA region for CRD and X13s

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While booting the CRD, a series of CMA allocation errors can be seen in
the kernel log:

  cma: cma_alloc: reserved: alloc failed, req-size: 128 pages, ret: -12

Growing the CMA region and querying /proc/meminfo indicates that a newly
booted system (currently) uses 64MB CMA.

Define a memory region sufficiently large for the current use cases, to
avoid forcing users to add this themselves, through command line
parameters etc.

While fixing the CRD define the same region for the X13s.

Tested-by: Andrew Halaney <ahalaney@redhat.com> # sc8280xp-lenovo-thinkpad-x13s
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230117184630.2775905-1-quic_bjorande@quicinc.com
This commit is contained in:
Bjorn Andersson 2023-01-17 10:46:30 -08:00 committed by Bjorn Andersson
parent fc1780dba4
commit 5f84c7c35d
2 changed files with 18 additions and 0 deletions
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9
arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
View File

@ -128,6 +128,15 @@ vreg_wwan: regulator-wwan {
regulator-boot-on;
};
reserved-memory {
linux,cma {
compatible = "shared-dma-pool";
size = <0x0 0x8000000>;
reusable;
linux,cma-default;
};
};
};
&apps_rsc {

9
arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
View File

@ -179,6 +179,15 @@ vreg_wwan: regulator-wwan {
regulator-boot-on;
};
reserved-memory {
linux,cma {
compatible = "shared-dma-pool";
size = <0x0 0x8000000>;
reusable;
linux,cma-default;
};
};
thermal-zones {
skin-temp-thermal {
polling-delay-passive = <250>;