linux-kernel - [PATCH v2 10/19] genirq: Add a new irq_send_ipi() to irq

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Message-ID: <1448453217-3874-11-git-send-email-qais.yousef@imgtec.com>
Date:	Wed, 25 Nov 2015 12:06:48 +0000
From:	Qais Yousef <qais.yousef@...tec.com>
To:	<linux-kernel@...r.kernel.org>
CC:	<tglx@...utronix.de>, <jason@...edaemon.net>,
	<marc.zyngier@....com>, <jiang.liu@...ux.intel.com>,
	<ralf@...ux-mips.org>, <linux-mips@...ux-mips.org>,
	Qais Yousef <qais.yousef@...tec.com>
Subject: [PATCH v2 10/19] genirq: Add a new irq_send_ipi() to irq_chip

Introduce the new functions to allow generic IPI send mechanism to be
used from arch and drivers code.

Signed-off-by: Qais Yousef <qais.yousef@...tec.com>
---
 include/linux/irq.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/linux/irq.h b/include/linux/irq.h
index 9a5d1e11a08f..ee01e89c2140 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -381,6 +381,10 @@ static inline irq_hw_number_t irqd_to_hwirq(struct irq_data *d)
  * @irq_get_irqchip_state:	return the internal state of an interrupt
  * @irq_set_irqchip_state:	set the internal state of a interrupt
  * @irq_set_vcpu_affinity:	optional to target a vCPU in a virtual machine
+ * @ipi_send_single:	send a single IPI to destination cpus
+ * @ipi_send_mask:	send an IPI to destination cpus in cpumask
+ * @ipi_send_coproc_single:	send a single IPI to destination coprocessor
+ * @ipi_send_coproc_mask:	send an IPI to destination corocessors in ipi_mask
  * @flags:		chip specific flags
  */
 struct irq_chip {
@@ -425,6 +429,11 @@ struct irq_chip {
 
 	int		(*irq_set_vcpu_affinity)(struct irq_data *data, void *vcpu_info);
 
+	void		(*ipi_send_single)(struct irq_data *data, unsigned int cpu);
+	void		(*ipi_send_mask)(struct irq_data *data, const struct cpumask *dest);
+	void		(*ipi_send_coproc_single)(struct irq_data *data, unsigned int cpu);
+	void		(*ipi_send_coproc_mask)(struct irq_data *data, const struct ipi_mask *dest);
+
 	unsigned long	flags;
 };
 
-- 
2.1.0

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