WORKAROUND: arm64: dts: qcom: sc7280: avoid EFI overlap for ADSP remote heap#499
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Jianping-Li wants to merge 1 commit intoqualcomm-linux:qcom-6.18.yfrom
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WORKAROUND: arm64: dts: qcom: sc7280: avoid EFI overlap for ADSP remote heap#499Jianping-Li wants to merge 1 commit intoqualcomm-linux:qcom-6.18.yfrom
Jianping-Li wants to merge 1 commit intoqualcomm-linux:qcom-6.18.yfrom
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…te 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. Signed-off-by: Jianping Li <jianping.li@oss.qualcomm.com>
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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.
CRs-Fixed: 4483711