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Mon, 24 Aug 2020 11:23:51 +0100 From: Marc Zyngier To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org Subject: [PATCH 2/9] irqchip/git-v3-its: Implement irq_retrigger callback for device-triggered LPIs Date: Mon, 24 Aug 2020 11:23:10 +0100 Message-Id: <20200824102317.1038259-3-maz@kernel.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200824102317.1038259-1-maz@kernel.org> References: <20200824102317.1038259-1-maz@kernel.org> 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, linux-pci@vger.kernel.org, bhelgaas@google.com, gregory.clement@bootlin.com, jason@lakedaemon.net, laurentiu.tudor@nxp.com, tglx@linutronix.de, valentin.schneider@arm.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-20200824_062356_393001_7B6089C1 X-CRM114-Status: GOOD ( 14.24 ) X-Spam-Score: -6.2 (------) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-6.2 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_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -1.0 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: Jason Cooper , Gregory Clement , Bjorn Helgaas , Thomas Gleixner , Valentin Schneider , Laurentiu Tudor Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Signed-off-by: Marc Zyngier --- drivers/irqchip/irq-gic-v3-its.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 95f097448f97..2808545a963e 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -1720,6 +1720,11 @@ static int its_irq_set_irqchip_state(struct irq_data *d, return 0; } +static int its_irq_retrigger(struct irq_data *d) +{ + return !its_irq_set_irqchip_state(d, IRQCHIP_STATE_PENDING, true); +} + /* * Two favourable cases: * @@ -1971,6 +1976,7 @@ static struct irq_chip its_irq_chip = { .irq_set_affinity = its_set_affinity, .irq_compose_msi_msg = its_irq_compose_msi_msg, .irq_set_irqchip_state = its_irq_set_irqchip_state, + .irq_retrigger = its_irq_retrigger, .irq_set_vcpu_affinity = its_irq_set_vcpu_affinity, };