linux-kernel - RE: [PATCH 6/7] arm64: tegra: Add DT node for T194 SMMU

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Message-ID: <BYAPR12MB2710B0F6F5630BF0BE7B4663B3BD0@BYAPR12MB2710.namprd12.prod.outlook.com>
Date:   Fri, 30 Aug 2019 18:35:23 +0000
From:   Krishna Reddy <vdumpa@...dia.com>
To:     Robin Murphy <robin.murphy@....com>
CC:     Sachin Nikam <Snikam@...dia.com>,
        "Thomas Zeng (SW-TEGRA)" <thomasz@...dia.com>,
        Juha Tukkinen <jtukkinen@...dia.com>,
        Mikko Perttunen <mperttunen@...dia.com>,
        Pritesh Raithatha <praithatha@...dia.com>,
        "iommu@...ts.linux-foundation.org" <iommu@...ts.linux-foundation.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Timo Alho <talho@...dia.com>, Yu-Huan Hsu <YHsu@...dia.com>,
        "linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
        Thierry Reding <treding@...dia.com>,
        Alexander Van Brunt <avanbrunt@...dia.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "will.deacon@....com" <will.deacon@....com>,
        "joro@...tes.org" <joro@...tes.org>
Subject: RE: [PATCH 6/7] arm64: tegra: Add DT node for T194 SMMU

>The number of global interrupts has never been related to the number of context interrupts :/

Yeah,  They are not related. I was trying to use minimum irq entries in the DT node as they both would achieve the same functionality.

>Clearly you have one combined interrupt output per SMMU - describing those as one global interrupt and the first two context bank interrupts respectively makes far less sense than calling them 3 global interrupts, not least because the latter is strictly true.

Will update to 3 in next patch to make it better for readability.

-KR