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[46.135.36.231]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6507bf6d5d4sm22379136a12.32.2026.01.14.00.47.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Jan 2026 00:47:14 -0800 (PST) From: Tomeu Vizoso Date: Wed, 14 Jan 2026 09:46:48 +0100 Subject: [PATCH v2 1/5] arm64: dts: ti: k3-j722s-ti-ipc-firmware: Add memory pool for DSP i/o buffers Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260114-thames-v2-1-e94a6636e050@tomeuvizoso.net> References: <20260114-thames-v2-0-e94a6636e050@tomeuvizoso.net> In-Reply-To: <20260114-thames-v2-0-e94a6636e050@tomeuvizoso.net> To: Nishanth Menon , "Andrew F. Davis" , Randolph Sapp , Jonathan Humphreys , Andrei Aldea , Chirag Shilwant , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Oded Gabbay , Jonathan Corbet , Sumit Semwal , =?utf-8?q?Christian_K=C3=B6nig?= , Robert Nelson , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-doc@vger.kernel.org, linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org, Tomeu Vizoso X-Mailer: b4 0.14.2 This memory region is used by the DRM/accel driver to allocate addresses for buffers that are used for communication with the DSP cores and for their intermediate results. Signed-off-by: Tomeu Vizoso --- arch/arm64/boot/dts/ti/k3-j722s-ti-ipc-firmware.dtsi | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-j722s-ti-ipc-firmware.dtsi b/arch/ar= m64/boot/dts/ti/k3-j722s-ti-ipc-firmware.dtsi index 3fbff927c4c08bce741555aa2753a394b751144f..b80d2a5a157ad59eaed8e57b22f= 1f4bce4765a85 100644 --- a/arch/arm64/boot/dts/ti/k3-j722s-ti-ipc-firmware.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j722s-ti-ipc-firmware.dtsi @@ -42,6 +42,11 @@ c7x_0_memory_region: memory@a3100000 { no-map; }; =20 + c7x_iova_pool: iommu-pool@a7000000 { + reg =3D <0x00 0xa7000000 0x00 0x18200000>; + no-map; + }; + c7x_1_dma_memory_region: memory@a4000000 { compatible =3D "shared-dma-pool"; reg =3D <0x00 0xa4000000 0x00 0x100000>; @@ -151,13 +156,15 @@ &main_r5fss0_core0 { &c7x_0 { mboxes =3D <&mailbox0_cluster2 &mbox_c7x_0>; memory-region =3D <&c7x_0_dma_memory_region>, - <&c7x_0_memory_region>; + <&c7x_0_memory_region>, + <&c7x_iova_pool>; status =3D "okay"; }; =20 &c7x_1 { mboxes =3D <&mailbox0_cluster3 &mbox_c7x_1>; memory-region =3D <&c7x_1_dma_memory_region>, - <&c7x_1_memory_region>; + <&c7x_1_memory_region>, + <&c7x_iova_pool>; status =3D "okay"; }; --=20 2.52.0