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Fri, 17 Jun 2022 16:40:26 +0100 Date: Fri, 17 Jun 2022 16:40:26 +0100 Message-ID: <87ilozpac5.wl-maz@kernel.org> From: Marc Zyngier To: Matt Ranostay Cc: , , , , Robin Murphy , Nishanth Menon Subject: Re: [PATCH v3] arm64: dts: ti: k3-j721s2: fix overlapping GICD memory region In-Reply-To: <20220617151304.446607-1-mranostay@ti.com> References: <20220617151304.446607-1-mranostay@ti.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/27.1 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: mranostay@ti.com, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-stable@vger.kernel.org, robin.murphy@arm.com, nm@ti.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220617_084030_568833_D158954B X-CRM114-Status: GOOD ( 15.60 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, 17 Jun 2022 16:13:04 +0100, Matt Ranostay wrote: > > GICD region was overlapping with GICR causing the latter to not map > successfully, and in turn the gic-v3 driver would fail to initialize. > > This issue was hidden till commit 2b2cd74a06c3 ("irqchip/gic-v3: Claim > iomem resources") replaced of_iomap() calls with of_io_request_and_map() > that internally called request_mem_region(). > > Respective console output before this patchset: > > [ 0.000000] GICv3: /bus@100000/interrupt-controller@1800000: couldn't map region 0 > > Fixes: b8545f9d3a54 ("arm64: dts: ti: Add initial support for J721S2 SoC") > Cc: linux-stable@vger.kernel.org > Cc: Marc Zyngier > Cc: Robin Murphy > Cc: Nishanth Menon > Signed-off-by: Matt Ranostay Acked-by: Marc Zyngier M. -- Without deviation from the norm, progress is not possible. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel