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platform: introduce DT-based configurable heap size

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The default heap size will work for most platforms, but for some
special platforms, the heap is too small to hold all the information
or is too big so that it take too much ram. Introduce configurable
heap should solve this problem and make all generic platforms happy.

Add DT-based heap-size for the generic platform.

Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
Reviewed-by: Xiang W <wxjstz@126.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Inochi Amaoto
2024-11-11 10:27:34 +08:00
committed by Anup Patel
parent dcb68dd17d
commit 5d4e3fb2ee
2 changed files with 29 additions and 3 deletions
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4
docs/opensbi_config.md
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@@ -23,6 +23,9 @@ The DT properties of a domain configuration DT node are as follows:
set of harts is permitted to perform a cold boot. Otherwise, all
harts are allowed to cold boot.
* **heap-size** (Optional) - When present, the specified value is used
as the size of the heap in bytes.
* **system-suspend-test** (Optional) - When present, enable a system
suspend test implementation which simply waits five seconds and issues a WFI.
@@ -36,6 +39,7 @@ The OpenSBI Configuration Node will be deleted at the end of cold boot
opensbi-config {
compatible = "opensbi,config";
cold-boot-harts = <&cpu1 &cpu2 &cpu3 &cpu4>;
heap-size = <0x400000>;
system-suspend-test;
};
};