From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.andi.de1.cc (mail.andi.de1.cc [178.238.236.174]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 45CFD36196E for ; Fri, 28 Aug 2026 20:32:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.238.236.174 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787949169; cv=none; b=JrPCSxNYKY2Oxos7o9YC4IzCwiv7pvWp+JSLu/1T22FywdJ4jIeFb3/9sWF6yAZjdDVyMcOmaTQMDxn7LrvygMpuv6wEyV+1NmfzS5AuCBndk60ICOwnXxjIETU+4Wx3+7vBha1sCIGA73XD141ihhy7RmZj7SPxLPTg/vmILO0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787949169; c=relaxed/simple; bh=iKVsyQV7tKPfaDuQ+PL5CFcPAPfielgcRiVqwmMClxg=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=DZMDbKEopk1BJpNReJvpdYH8G+TIBAbXl6ztqOKPSvcQs8Ky7Mr/Vd08wm7EObsy9BH6QSV1ANjP/nNzF+3qH3RbtLmBXFrJ2pwDgr1Q67bZ8AynpVC8jL4cIrogVLJOpte4a/wgytRb01Uib9ZBMBRZNIs7iicBVkEvuwHPJQo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=kemnade.info; spf=pass smtp.mailfrom=kemnade.info; dkim=pass (2048-bit key) header.d=kemnade.info header.i=@kemnade.info header.b=wNZYTpKR; arc=none smtp.client-ip=178.238.236.174 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=kemnade.info Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kemnade.info Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kemnade.info header.i=@kemnade.info header.b="wNZYTpKR" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=kemnade.info; s=20220719; h=Cc:To:Subject:From:Reply-To:Content-ID: Content-Description:In-Reply-To:References; bh=m8ZwWJclDPSOBvdgEydgxUAmIzPLtZQQkdqYB7g8o8E=; t=1787949168; x=1789158768; b=wNZYTpKRQHPM2+Mkxp7xaablncDIepciy/L43GX24C/IYHEu1f2csLfse3zCa6LqklmL0QadQM+ usmX6LCjnIQk133zGIBWoytEtMieccUop2EyHeqy7C4d/XcwNHZbhUaAHDnEqK8zxZRYOcAr3dfAG dt1nLm2M6nUnSFdxHB8Mh37PSJzbsKvdDy2i0Lr0AEjK+IR3O1C2OVYkqdWbcLHv0zZYaIfgFNTiG A4fOrXG01JDNvF7gS8860nAjVi2CV5d+G1yra4CJ/hZLV91LI4/1U1GDZF8RPkvZGcVVqe6p1XGw/ Z1sJu4/fkpHVPbkEZVSOUG6V1UwTmnulQ+2Q==; From: Andreas Kemnade Subject: [PATCH v2 0/3] ARM ZSTD boot compression Date: Fri, 28 Aug 2026 22:32:18 +0200 Message-Id: <20260828-zstd2-v2-0-4d9ce7150877@kemnade.info> 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: 8bit X-B4-Tracking: v=1; b=H4sIAFLwkWoC/yXMQQ5AMBCF4avIrDVpJiXlKmJBDcYC6SCicXfF8 kv+9wIIeSaBMgng6WDhZY7ANAE3NvNAirtoQI25tmjVJVuHSpvMUYGmz9FAbFdPPZ/fT1X/lr2 dyG3vGO77AYv5Ha1pAAAA X-Change-ID: 20260828-zstd2-045ce924f624 To: Russell King , Nick Terrell , David Sterba , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt Cc: Andreas Kemnade , j.neuschaefer@gmx.net, f.fainelli@gmail.com, Tony Lindgren , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Linus Walleij X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1615; i=andreas@kemnade.info; h=from:subject:message-id; bh=iKVsyQV7tKPfaDuQ+PL5CFcPAPfielgcRiVqwmMClxg=; b=owGbwMvMwCUm/rzkS6lq2x3G02pJDFkTP6Q2PemRDZJJeGN1y0GKqep8+iG+j1cPbd3/noGtc VqihXxARykLgxgXg6yYIssvawW3TyrPcoOnRtjDzGFlAhnCwMUpABP58ZqR4XtCj7kak8w5f94b PR8zV2X+lxO8MX29zaeLsU90N/Wb5TP8TzEv/vvmSOMZ0V0c4jYXLstcCJ31iyV0+k5ZZ4dSQ7V 6VgA= X-Developer-Key: i=andreas@kemnade.info; a=openpgp; fpr=EEC0DB858E66C0DA70620AC07DBD6AC74DE29324 Add ZSTD compression to still have a quite high compression but with not too much boot delay penality. Signed-off-by: Andreas Kemnade --- Changes in v2: - rebased - practically rewritten 3/3 (and therefore changed author) - added more measurements - Link to v1: https://lore.kernel.org/lkml/ZDoDYh01GYjdwp63@probook/ To: Russell King To: Nick Terrell To: David Sterba To: Nathan Chancellor To: Nick Desaulniers To: Bill Wendling To: Justin Stitt Cc: j.neuschaefer@gmx.net Cc: f.fainelli@gmail.com Cc: Linus Walleij Cc: Tony Lindgren Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org --- Andreas Kemnade (1): ARM: compressed: Enable ZSTD compression Jonathan Neuschäfer (2): ARM: compressed: Pass the actual output length to the decompressor ARM: compressed: Bump MALLOC_SIZE to 128 KiB arch/arm/Kconfig | 1 + arch/arm/boot/compressed/Makefile | 3 ++- arch/arm/boot/compressed/decompress.c | 15 ++++++++++++--- arch/arm/boot/compressed/head.S | 4 ++-- arch/arm/boot/compressed/misc.c | 10 +++++++++- arch/arm/boot/compressed/misc.h | 3 ++- 6 files changed, 28 insertions(+), 8 deletions(-) --- base-commit: 8d3ae59288f1e7d58d76558a6ee96d533bc5019f change-id: 20260828-zstd2-045ce924f624 Best regards, -- Andreas Kemnade