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Tue, 15 Sep 2020 14:40:17 +0100 From: Marc Zyngier To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/2] irqchip/gic: Fix handling of Samsung's non-standard GIC Date: Tue, 15 Sep 2020 14:39:42 +0100 Message-Id: <20200915133944.1285456-1-maz@kernel.org> X-Mailer: git-send-email 2.28.0 MIME-Version: 1.0 X-SA-Exim-Connect-IP: 62.31.163.78 X-SA-Exim-Rcpt-To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, tglx@linutronix.de, jason@lakedaemon.net, m.szyprowski@samsung.com, kernel-team@android.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-20200915_094020_189688_EC62F68A X-CRM114-Status: GOOD ( 11.81 ) X-Spam-Score: -8.2 (--------) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-8.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [198.145.29.99 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -3.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thomas Gleixner , kernel-team@android.com, Jason Cooper , Marek Szyprowski Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Marek pointed out that the new IPI code broke the two ancient A9 platforms that use the dreaded Franken-GIC (not the official name), as it appears it is even more broken than we though 9 years ago. The fix isn't nice, although it allows for some further cleanup. Marek, could you please give these another spin on your boards? For convenience, I've stashed them as part of [1]. Thanks, M. [1] https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git/log/?h=irq/ipi-as-irq Marc Zyngier (2): irqchip/gic: Handle non-standard SGI deactivation on Samsung's Franken-GIC irqchip/gic: Cleanup Franken-GIC handling drivers/irqchip/irq-gic.c | 67 +++++++++++++++++++++++++-------------- 1 file changed, 43 insertions(+), 24 deletions(-)