drm/msm/adreno: Support for CLX feature on A8xx - #1707
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Add support for Current Limit Extension (CLX) feature found on a few A8x GPUs. This feature is required to limit the peak current consumption to avoid HW spec violation on GX/MX rails. Add the necessary HFI interface support to pass the recommended CLX and IFF/PCLX limits tables to the GMU. Per-GPU configuration is consumed from the catalog entries. Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com> Signed-off-by: Veeresh Bagale <vbagale@qti.qualcomm.com> Link: https://lore.kernel.org/r/20260516-a8xx-clx-support-v1-1-62508bf651ac@oss.qualcomm.com
Add the A840 CLX domain table and the IFF/PCLX limits table to the catalog. With the HFI plumbing in place, this enables the Current Limit Extension (CLX) feature on Adreno 840. Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com> Signed-off-by: Veeresh Bagale <vbagale@qti.qualcomm.com> Link: https://lore.kernel.org/r/20260516-a8xx-clx-support-v1-2-62508bf651ac@oss.qualcomm.com
Add the CLX domain table and the IFF/PCLX limits tables to the catalog to enable CLX feature support on Adreno X2-85 GPU present in the Glymur chipset. Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com> Signed-off-by: Veeresh Bagale <vbagale@qti.qualcomm.com> Link: https://lore.kernel.org/r/20260516-a8xx-clx-support-v1-3-62508bf651ac@oss.qualcomm.com
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Rajesh Kemisetti (quic-rajeshk)
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August 19, 2026 04:54
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Adds support for the Current Limit Extension (CLX) feature on A8xx GPUs. CLX limits peak current consumption on the GX/MX rails to avoid HW spec violations, and is required on A840 and Adreno X2-85 (present in the Glymur chipset).
CRs-Fixed: 4649514