Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8;
 format=flowed
Content-Transfer-Encoding: 8bit
Date:   Mon, 14 Sep 2020 14:13:04 +0100
From:   Marc Zyngier <maz@kernel.org>
To:     Marek Szyprowski <m.szyprowski@samsung.com>
Cc:     linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Will Deacon <will@kernel.org>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Russell King <linux@arm.linux.org.uk>,
        Thomas Gleixner <tglx@linutronix.de>,
        Jason Cooper <jason@lakedaemon.net>,
        Sumit Garg <sumit.garg@linaro.org>,
        Valentin Schneider <Valentin.Schneider@arm.com>,
        Florian Fainelli <f.fainelli@gmail.com>,
        Gregory Clement <gregory.clement@bootlin.com>,
        Andrew Lunn <andrew@lunn.ch>,
        Saravana Kannan <saravanak@google.com>,
        kernel-team@android.com,
        'Linux Samsung SOC' <linux-samsung-soc@vger.kernel.org>,
        Krzysztof Kozlowski <krzk@kernel.org>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Subject: Re: [PATCH v3 08/16] irqchip/gic: Configure SGIs as standard
 interrupts
In-Reply-To: <a917082d-4bfd-a6fd-db88-36e75f5f5921@samsung.com>
References: <20200901144324.1071694-1-maz@kernel.org>
 <20200901144324.1071694-9-maz@kernel.org>
 <CGME20200914130601eucas1p23ce276d168dee37909b22c75499e68da@eucas1p2.samsung.com>
 <a917082d-4bfd-a6fd-db88-36e75f5f5921@samsung.com>
User-Agent: Roundcube Webmail/1.4.8
Message-ID: <8642847d83ef5bb15663d0246d6af668@kernel.org>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Hi Marek,

On 2020-09-14 14:06, Marek Szyprowski wrote:
> Hi Marc,
> 
> On 01.09.2020 16:43, Marc Zyngier wrote:
>> Change the way we deal with GIC SGIs by turning them into proper
>> IRQs, and calling into the arch code to register the interrupt range
>> instead of a callback.
>> 
>> Reviewed-by: Valentin Schneider <valentin.schneider@arm.com>
>> Signed-off-by: Marc Zyngier <maz@kernel.org>
> This patch landed in linux next-20200914 as commit ac063232d4b0
> ("irqchip/gic: Configure SGIs as standard interrupts"). Sadly it breaks
> booting of all Samsung Exynos 4210/4412 based boards (dual/quad ARM
> Cortex A9 based). Here are the last lines from the bootlog:
> 
> [    0.106322] CPU: Testing write buffer coherency: ok
> [    0.109895] CPU0: Spectre v2: using BPIALL workaround
> [    0.116057] CPU0: thread -1, cpu 0, socket 9, mpidr 80000900
> [    0.123885] Setting up static identity map for 0x40100000 - 
> 0x40100060
> [    0.130191] rcu: Hierarchical SRCU implementation.
> [    0.137195] soc soc0: Exynos: CPU[EXYNOS4210] PRO_ID[0x43210211]
> REV[0x11] Detected
> [    0.145129] smp: Bringing up secondary CPUs ...
> [    0.156279] CPU1: thread -1, cpu 1, socket 9, mpidr 80000901
> [    0.156291] CPU1: Spectre v2: using BPIALL workaround
> [    2.716379] random: fast init done

Thanks for the report. Is this the funky non-banked GIC?

         M.
-- 
Jazz is not dead. It just smells funny...