From mboxrd@z Thu Jan 1 00:00:00 1970 From: Julien Grall Subject: [PATCH v2 08/16] xen/arm: IRQ Introduce irq_get_domain Date: Thu, 3 Apr 2014 21:41:59 +0100 Message-ID: <1396557727-19102-9-git-send-email-julien.grall@linaro.org> References: <1396557727-19102-1-git-send-email-julien.grall@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail6.bemta14.messagelabs.com ([193.109.254.103]) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1WVoT5-0008Cy-I8 for xen-devel@lists.xenproject.org; Thu, 03 Apr 2014 20:42:35 +0000 Received: by mail-we0-f176.google.com with SMTP id x48so2393390wes.7 for ; Thu, 03 Apr 2014 13:42:33 -0700 (PDT) In-Reply-To: <1396557727-19102-1-git-send-email-julien.grall@linaro.org> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: xen-devel@lists.xenproject.org Cc: stefano.stabellini@citrix.com, Julien Grall , tim@xen.org, ian.campbell@citrix.com List-Id: xen-devel@lists.xenproject.org This function retrieves a domain from an IRQ. It will be used in several places (such as do_IRQ) to avoid duplicated code when multiple action will be supported. Signed-off-by: Julien Grall --- Changes in v2: - Patch added --- xen/arch/arm/irq.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/xen/arch/arm/irq.c b/xen/arch/arm/irq.c index f3a30bd..5111b90 100644 --- a/xen/arch/arm/irq.c +++ b/xen/arch/arm/irq.c @@ -98,6 +98,15 @@ void __cpuinit init_secondary_IRQ(void) BUG_ON(init_local_irq_data() < 0); } +static inline struct domain *irq_get_domain(struct irq_desc *desc) +{ + ASSERT(spin_is_locked(&desc->lock)); + ASSERT(desc->status & IRQ_GUEST); + ASSERT(desc->action != NULL); + + return desc->action->dev_id; +} + int request_dt_irq(const struct dt_irq *irq, void (*handler)(int, void *, struct cpu_user_regs *), const char *devname, void *dev_id) @@ -156,7 +165,7 @@ void do_IRQ(struct cpu_user_regs *regs, unsigned int irq, int is_fiq) if ( desc->status & IRQ_GUEST ) { - struct domain *d = action->dev_id; + struct domain *d = irq_get_domain(desc); desc->handler->end(desc); -- 1.7.10.4