[PATCH 0/4] drm/msm/adreno: Add Adreno 620

From: Ishu Brar via B4 Relay

Date: Fri Oct 16 2026 - 08:59:39 EST


This adds Adreno 620 GPU found in Qualcomm SM7250 (Snapdragon
765/765G/768G) to msm driver. It is A650 derivative using
a650 SQE/GMU firmware and a620_zap.mbn. On top of catalog entry it
needs two A620 specific GMU changes:

- A620 has no PDC setup from AOP, so PDC sequencer is
programmed from driver (xo/mx/cx addresses from cmd-db). Without
it RSC never acks second power-up and device hangs.
- A bandwidth table with BCM addresses of this SoC. The generic
A630 one does not exist on SM7250, so first GX performance vote
times out.

Tested on OnePlus Nord (SM7250) running mainline: the GPU, GMU and
Vulkan work. This needs the SM7250 SMMU series [1] as well, otherwise
the device is reset when the first per-process pagetable is created.
The SoC devicetree nodes are not part of this series; they will be sent
separately once the SoC dtsi is accepted.

[1] https://lore.kernel.org/all/20261016-smmu-sm7250-v1-0-e11fc0384cfa@xxxxxxx/

Signed-off-by: Ishu Brar <patches@xxxxxxx>
---
Ishu Brar (4):
dt-bindings: display: msm: Document Adreno 620 and its GMU
drm/msm/a6xx: Add a bandwidth table for the Adreno 620 GMU
drm/msm/a6xx: Program the PDC sequencer on Adreno 620
drm/msm/adreno: Add Adreno 620

.../devicetree/bindings/display/msm/gmu.yaml | 2 ++
.../devicetree/bindings/display/msm/gpu.yaml | 1 +
drivers/gpu/drm/msm/adreno/a6xx_catalog.c | 25 ++++++++++++++++
drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 22 +++++++++++----
drivers/gpu/drm/msm/adreno/a6xx_hfi.c | 33 ++++++++++++++++++++++
drivers/gpu/drm/msm/adreno/adreno_gpu.h | 5 ++++
6 files changed, 82 insertions(+), 6 deletions(-)
---
base-commit: d024361c631b3f020a26c07d683e5103404b0fbf
change-id: 20261016-adreno-a620-faee699b382f

Best regards,
--
Ishu Brar <patches@xxxxxxx>