Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758757AbbKSOyX (ORCPT ); Thu, 19 Nov 2015 09:54:23 -0500 Received: from mail-wm0-f41.google.com ([74.125.82.41]:32793 "EHLO mail-wm0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758744AbbKSOyT (ORCPT ); Thu, 19 Nov 2015 09:54:19 -0500 From: Eric Auger To: eric.auger@st.com, eric.auger@linaro.org, alex.williamson@redhat.com, b.reynal@virtualopensystems.com, christoffer.dall@linaro.org, marc.zyngier@arm.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org Cc: andre.przywara@arm.com, linux-kernel@vger.kernel.org, patches@linaro.org Subject: [PATCH v4 05/13] VFIO: platform: add vfio_platform_set_forwarded Date: Thu, 19 Nov 2015 14:53:55 +0000 Message-Id: <1447944843-17731-6-git-send-email-eric.auger@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1447944843-17731-1-git-send-email-eric.auger@linaro.org> References: <1447944843-17731-1-git-send-email-eric.auger@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1520 Lines: 54 This function allows to change the forwarded mode and selects the IRQ handler accordingly. Signed-off-by: Eric Auger --- v3 -> v3: - renamed vfio_platform_set_automasked into vfio_platform_set_forwarded - do not change VFIO_IRQ_INFO_AUTOMASKED setting when turning forwarding on/off v1 -> v2: - set forwarded flag --- drivers/vfio/platform/vfio_platform_irq.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/vfio/platform/vfio_platform_irq.c b/drivers/vfio/platform/vfio_platform_irq.c index c58e0ad..257200b 100644 --- a/drivers/vfio/platform/vfio_platform_irq.c +++ b/drivers/vfio/platform/vfio_platform_irq.c @@ -186,6 +186,23 @@ static irqreturn_t vfio_handler(int irq, void *dev_id) return ret; } +static int vfio_platform_set_forwarded(struct vfio_platform_irq *irq, + bool forwarded) +{ + unsigned long flags; + + spin_lock_irqsave(&irq->lock, flags); + irq->forwarded = forwarded; + + if (!forwarded && (irq->flags & VFIO_IRQ_INFO_AUTOMASKED)) + irq->handler = vfio_automasked_irq_handler; + else + irq->handler = vfio_irq_handler; + + spin_unlock_irqrestore(&irq->lock, flags); + return 0; +} + static void vfio_platform_irq_bypass_stop(struct irq_bypass_producer *prod) { } -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/