MediaTek MT8196 has Mali-G925-Immortalis, for which panthor gained support recently. But the soc also requires custom ASN hash to be enabled. This series introduces panthor_soc_data for per-soc data and uses it to enable custom ASN hash on MT8196.
The clk/regulator provider on MT8196 is GPUEB, whose driver[1] needs to be cleaned up and upstreamed separately. This initial support also lacks support for some hw configs. On some configs, panthor is expected to query a mask from efuse to mask out unavailable shader cores from ptdev->gpu_info.shader_present. This requires extending panthor_soc_data with a callback to read the mask. This is an RFC because the dependent drivers are not ready yet. But I would like to gather opinions on having panthor_soc_data for soc-specific data and having CONFIG_DRM_PANTHOR_SOC_MT8196 for soc-specific code. [1] https://gitlab.freedesktop.org/olv/kernel/-/commit/170d5fc90f817dc90bde54b32872c59cf5c77779 --- v2: - drop RFC as this series works with the downstream GPUEB driver, and should work with Nicolas's GPUEB driver posted to https://lore.kernel.org/lkml/20250912-mt8196-gpufreq-v2-0-779a8a372...@collabora.com/ with no change. - remove CONFIG_DRM_PANTHOR_SOC_MT8196 and panthor_soc*.[ch], as this initial support is just about ASN hash. Chia-I Wu (2): dt-bindings: gpu: mali-valhall-csf: add MediaTek MT8196 compatible drm/panthor: add custom ASN_HASH support for mt8196 .../bindings/gpu/arm,mali-valhall-csf.yaml | 1 + drivers/gpu/drm/panthor/panthor_device.c | 2 ++ drivers/gpu/drm/panthor/panthor_device.h | 14 +++++++++++ drivers/gpu/drm/panthor/panthor_drv.c | 6 +++++ drivers/gpu/drm/panthor/panthor_gpu.c | 25 ++++++++++++++++++- drivers/gpu/drm/panthor/panthor_regs.h | 4 +++ 6 files changed, 51 insertions(+), 1 deletion(-) -- 2.51.0.384.g4c02a37b29-goog
