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[34.125.3.185]) by smtp.gmail.com with UTF8SMTPSA id 98e67ed59e1d1-32e0c2863e6sm406490a91.28.2025.09.12.17.21.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 Sep 2025 17:21:58 -0700 (PDT) From: Chia-I Wu To: Boris Brezillon , Steven Price , Liviu Dudau , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Subject: [PATCH v2 0/2] drm/panthor: initial mt8196 support Date: Fri, 12 Sep 2025 17:21:53 -0700 Message-ID: <20250913002155.1163908-1-olvaffe@gmail.com> X-Mailer: git-send-email 2.51.0.384.g4c02a37b29-goog MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250912_172200_159582_992507D3 X-CRM114-Status: GOOD ( 14.59 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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-v2-0-779a8a3729d9@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