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From: Devarsh Thakkar <devarsht@ti.com>
To: <nm@ti.com>, <vigneshr@ti.com>, <kristo@kernel.org>,
	<robh@kernel.org>, <krzk+dt@kernel.org>, <conor+dt@kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: <praneeth@ti.com>, <a-bhatia1@ti.com>, <j-luthra@ti.com>,
	<b-brnich@ti.com>, <detheridge@ti.com>, <p-mantena@ti.com>,
	<vijayp@ti.com>, <devarsht@ti.com>
Subject: [PATCH 3/3] arm64: dts: ti: k3-am62p5-sk: Reserve 576 MiB of global CMA
Date: Thu, 13 Jun 2024 20:39:02 +0530	[thread overview]
Message-ID: <20240613150902.2173582-4-devarsht@ti.com> (raw)
In-Reply-To: <20240613150902.2173582-1-devarsht@ti.com>

From: Brandon Brnich <b-brnich@ti.com>

AM62p has different multimedia components such as Camera, Display, H264
Video Codec which uses CMA for buffer allocations. We require 576MiB for 12
channel decode-to-encode 720x480@30FPS use case.

Signed-off-by: Brandon Brnich <b-brnich@ti.com>
Signed-off-by: Devarsh Thakkar <devarsht@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am62p5-sk.dts | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
index fb980d46e304..5ef74d9f8eea 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
@@ -48,6 +48,13 @@ reserved-memory {
 		#size-cells = <2>;
 		ranges;
 
+		linux,cma {
+			compatible = "shared-dma-pool";
+			reusable;
+			size = <0x00 0x24000000>;
+			linux,cma-default;
+		};
+
 		secure_tfa_ddr: tfa@9e780000 {
 			reg = <0x00 0x9e780000 0x00 0x80000>;
 			no-map;
-- 
2.39.1



  parent reply	other threads:[~2024-06-13 15:09 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-06-13 15:08 [PATCH 0/3] Add global CMA reserve area Devarsh Thakkar
2024-06-13 15:09 ` [PATCH 1/3] arm64: dts: ti: k3-am62x-sk-common: Reserve 128MiB of global CMA Devarsh Thakkar
2024-06-13 15:09 ` [PATCH 2/3] arm64: dts: ti: k3-am62a7-sk: Reserve 576MiB " Devarsh Thakkar
2024-06-14 17:27   ` Brandon Brnich
2024-06-13 15:09 ` Devarsh Thakkar [this message]
2024-06-14 17:04   ` [PATCH 3/3] arm64: dts: ti: k3-am62p5-sk: Reserve 576 MiB " Brandon Brnich
2024-06-21 16:14     ` Devarsh Thakkar
2024-06-14 17:58 ` [PATCH 0/3] Add global CMA reserve area Randolph Sapp
2024-06-24 16:33   ` Andrew Davis
2024-06-28 15:57     ` Devarsh Thakkar
2024-06-28 16:35       ` Randolph Sapp
2024-06-30  7:09         ` Vignesh Raghavendra
2024-07-01 14:33           ` Andrew Davis
2024-07-01 18:26             ` Randolph Sapp
2024-07-05 13:18 ` (subset)[PATCH " Vignesh Raghavendra

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