From 9d7d847ff1c502802ac764120f9a1800b94ce497 Mon Sep 17 00:00:00 2001 From: Jianping Li Date: Wed, 29 Apr 2026 15:34:43 +0800 Subject: [PATCH] arm64: dts: qcom: kodiak: avoid EFI overlap for ADSP remote heap On KODIAK platforms boot can fail when the DT "adsp-rpc-remote-heap" reserved-memory region overlaps with firmware allocations (UEFI/EFI runtime). The kernel then reports failure to reserve the region and subsequent EFI runtime activity may trigger aborts. The remote heap node was described as a fixed "no-map" region, which turns it into a hard carveout. Replace it with a "shared-dma-pool" reserved memory region with reusable CMA-backed allocation, specifying alignment and size. This avoids hard carveouts and reduces the chance of conflicting with firmware memory maps while keeping an explicit pool for ADSP remote heap usage. Fixes: 90a58ffa9c55 ("arm64: dts: qcom: kodiak: Add memory region for audiopd") Cc: stable@kernel.org Signed-off-by: Jianping Li Reviewed-by: Konrad Dybcio Link: https://lore.kernel.org/r/20260429073443.2027-1-jianping.li@oss.qualcomm.com Signed-off-by: Bjorn Andersson --- arch/arm64/boot/dts/qcom/kodiak.dtsi | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/arch/arm64/boot/dts/qcom/kodiak.dtsi b/arch/arm64/boot/dts/qcom/kodiak.dtsi index ac048ec9aeb5..7e73348fe0d0 100644 --- a/arch/arm64/boot/dts/qcom/kodiak.dtsi +++ b/arch/arm64/boot/dts/qcom/kodiak.dtsi @@ -191,9 +191,12 @@ rmtfs_mem: rmtfs@9c900000 { qcom,vmid = ; }; - adsp_rpc_remote_heap_mem: adsp-rpc-remote-heap@9cb80000 { - reg = <0x0 0x9cb80000 0x0 0x800000>; - no-map; + adsp_rpc_remote_heap_mem: adsp-rpc-remote-heap { + compatible = "shared-dma-pool"; + alloc-ranges = <0x0 0x80000000 0x0 0x80000000>; + reusable; + alignment = <0x0 0x400000>; + size = <0x0 0x800000>; }; }; -- 2.55.0