Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756093AbaFYJbZ (ORCPT ); Wed, 25 Jun 2014 05:31:25 -0400 Received: from fw-tnat.austin.arm.com ([217.140.110.23]:51362 "EHLO collaborate-mta1.arm.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752091AbaFYJ27 (ORCPT ); Wed, 25 Jun 2014 05:28:59 -0400 From: Marc Zyngier To: kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Will Deacon , Catalin Marinas , Thomas Gleixner , eric.auger@linaro.org, Christoffer Dall Subject: [RFC PATCH 1/9] genirq: Add IRQD_IRQ_FORWARDED flag and accessors Date: Wed, 25 Jun 2014 10:28:42 +0100 Message-Id: <1403688530-23273-2-git-send-email-marc.zyngier@arm.com> X-Mailer: git-send-email 1.8.3.4 In-Reply-To: <1403688530-23273-1-git-send-email-marc.zyngier@arm.com> References: <1403688530-23273-1-git-send-email-marc.zyngier@arm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Some interrupt controllers support a split EOI behaviour, where an active interrupt can be forwarded to a VM, and directly EOIed from the guest. Allow the irq_data to carry a flag describing this setup. Signed-off-by: Marc Zyngier --- include/linux/irq.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/include/linux/irq.h b/include/linux/irq.h index 0d998d8..b4b3120 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -186,6 +186,7 @@ enum { IRQD_IRQ_DISABLED = (1 << 16), IRQD_IRQ_MASKED = (1 << 17), IRQD_IRQ_INPROGRESS = (1 << 18), + IRQD_IRQ_FORWARDED = (1 << 19), }; static inline bool irqd_is_setaffinity_pending(struct irq_data *d) @@ -272,6 +273,21 @@ static inline void irqd_clr_chained_irq_inprogress(struct irq_data *d) d->state_use_accessors &= ~IRQD_IRQ_INPROGRESS; } +static inline void irqd_set_irq_forwarded(struct irq_data *d) +{ + d->state_use_accessors |= IRQD_IRQ_FORWARDED; +} + +static inline void irqd_clr_irq_forwarded(struct irq_data *d) +{ + d->state_use_accessors &= ~IRQD_IRQ_FORWARDED; +} + +static inline bool irqd_irq_forwarded(struct irq_data *d) +{ + return d->state_use_accessors & IRQD_IRQ_FORWARDED; +} + static inline irq_hw_number_t irqd_to_hwirq(struct irq_data *d) { return d->hwirq; -- 1.8.3.4 -- 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/