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ARM: dts: stm32: define a 128MB CMA area on stm32mp157c-ev1-scmi

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Grow the CMA size to 128MB. The Continuous Memory Allocator allows to
create large chunks of continuous physical memory addresses. This
could be typically the reserved memory for the GPU.

Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
Change-Id: I02d5a36036000f6bd7e071612f58de94932cd1f3
Reviewed-on: https://gerrit.st.com/c/mpu/oe/st/linux-stm32/+/299471
ACI: CITOOLS <MDG-smet-aci-reviews@list.st.com>
ACI: CIBUILD <MDG-smet-aci-builds@list.st.com>
Reviewed-by: Philippe CORNU <philippe.cornu@foss.st.com>
Reviewed-by: Yannick FERTRE <yannick.fertre@foss.st.com>
Domain-Review: Philippe CORNU <philippe.cornu@foss.st.com>
This commit is contained in:
Raphael Gallais-Pou
2023-04-06 16:15:31 +02:00
committed by Eric Fourmont
parent 63b14d9d58
commit 4a2d3d2a7d
1 changed files with 9 additions and 0 deletions
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9
arch/arm/boot/dts/stm32mp157c-ev1-scmi.dtsi
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@ -10,6 +10,15 @@
reg = <0xfe000000 0x2000000>;
no-map;
};
/* global autoconfigured region for contiguous allocations */
linux,cma {
compatible = "shared-dma-pool";
reusable;
size = <0x8000000>;
alignment = <0x2000>;
linux,cma-default;
};
};
};