From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3A88DC35FFA for ; Wed, 19 Mar 2025 10:08:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:Message-ID:Date:References:In-Reply-To:Subject:To: From:Reply-To:Cc:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=w5JwhEag+HNgoKIguvpD0aX73WZHK+rxY2Z3LP9I40c=; b=Oy/aolF4UWwv8tOv04gfb4/pXl OtHEN8wZGzjYUjYHPoBmO4SB3cITFoUS44VGARP4mVpcIeRXG4BBp4nlltSrXSZLiIHKHreuCzG+K k/zbG5Na436nRIFCarys1SGeSOYJtIO6yAmV9aXoICwsUnPUqaXehavjqYDr7BGtMTYiuAFBqS3/3 W0x5o+4WY8ARM1ZoIDliwT13FWBNGwOZf+/hTUYP2ym0Dsas3s9QRl1GNavq2JYz8zh3M57LsimCG FFwWnxbg919lZlxBtsgDUn0RueKWnUXe08zFdk8MOUoATLEC+41Wi6KOer2y1T3/1YcTlUaD/GLrC YotDJZCQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tuqLQ-00000008cN7-3RUN; Wed, 19 Mar 2025 10:08:16 +0000 Received: from ni.piap.pl ([195.187.100.5]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tuqJj-00000008cC0-3FsD for linux-arm-kernel@lists.infradead.org; Wed, 19 Mar 2025 10:06:33 +0000 Received: from t19.piap.pl (OSB1819.piap.pl [10.0.9.19]) by ni.piap.pl (Postfix) with ESMTPS id 2D8A3C40828A for ; Wed, 19 Mar 2025 11:06:30 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 ni.piap.pl 2D8A3C40828A From: =?utf-8?Q?Krzysztof_Ha=C5=82asa?= To: linux-arm-kernel Subject: Re: ARM64 GICv3 IRQ handling on i.MX8MP In-Reply-To: ("Krzysztof =?utf-8?Q?Ha=C5=82as?= =?utf-8?Q?a=22's?= message of "Wed, 19 Mar 2025 10:51:45 +0100") References: Date: Wed, 19 Mar 2025 11:06:30 +0100 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250319_030631_993432_C061B00C X-CRM114-Status: UNSURE ( 7.88 ) X-CRM114-Notice: Please train this message. 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 Me: > - especially with the busy loops, the I2C IRQs appear to work in some > sort of polled mode as well - the el1h_64_irq_handler() isn't called > before i2c_imx_isr(). This is fast, though - ca. 1 us after the end > of transfer. It seems this is actually called by el0t_64_irq(), not a polling. --=20 Krzysztof "Chris" Ha=C5=82asa Sie=C4=87 Badawcza =C5=81ukasiewicz Przemys=C5=82owy Instytut Automatyki i Pomiar=C3=B3w PIAP Al. Jerozolimskie 202, 02-486 Warszawa