linux-kernel - [PATCH v3 01/19] genirq: Add new IRQ_DOMAIN_FLAGS

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1449058920-21011-2-git-send-email-qais.yousef@imgtec.com>
Date:	Wed, 2 Dec 2015 12:21:42 +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 v3 01/19] genirq: Add new IRQ_DOMAIN_FLAGS_IPI

This flag will be used to identify an IPI domain.

We have two types:

	- PER_CPU: indicating a virq for each IPI
	- SINGLE: indicating a single virq for all IPIs

Signed-off-by: Qais Yousef <qais.yousef@...tec.com>
---
 include/linux/irqdomain.h | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index d5e5c5bef28c..c1a59f37674d 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -171,6 +171,12 @@ enum {
 	/* Core calls alloc/free recursive through the domain hierarchy. */
 	IRQ_DOMAIN_FLAG_AUTO_RECURSIVE	= (1 << 1),
 
+	/* Irq domain is an IPI domain with virq per cpu */
+	IRQ_DOMAIN_FLAG_IPI_PER_CPU	= (1 << 2),
+
+	/* Irq domain is an IPI domain with single virq */
+	IRQ_DOMAIN_FLAG_IPI_SINGLE	= (1 << 3),
+
 	/*
 	 * Flags starting from IRQ_DOMAIN_FLAG_NONCORE are reserved
 	 * for implementation specific purposes and ignored by the
@@ -391,6 +397,22 @@ static inline bool irq_domain_is_hierarchy(struct irq_domain *domain)
 {
 	return domain->flags & IRQ_DOMAIN_FLAG_HIERARCHY;
 }
+
+static inline bool irq_domain_is_ipi(struct irq_domain *domain)
+{
+	return domain->flags &
+		(IRQ_DOMAIN_FLAG_IPI_PER_CPU | IRQ_DOMAIN_FLAG_IPI_SINGLE);
+}
+
+static inline bool irq_domain_is_ipi_per_cpu(struct irq_domain *domain)
+{
+	return domain->flags & IRQ_DOMAIN_FLAG_IPI_PER_CPU;
+}
+
+static inline bool irq_domain_is_ipi_single(struct irq_domain *domain)
+{
+	return domain->flags & IRQ_DOMAIN_FLAG_IPI_SINGLE;
+}
 #else	/* CONFIG_IRQ_DOMAIN_HIERARCHY */
 static inline void irq_domain_activate_irq(struct irq_data *data) { }
 static inline void irq_domain_deactivate_irq(struct irq_data *data) { }
@@ -404,6 +426,21 @@ static inline bool irq_domain_is_hierarchy(struct irq_domain *domain)
 {
 	return false;
 }
+
+static inline bool irq_domain_is_ipi(struct irq_domain *domain)
+{
+	return false;
+}
+
+static inline bool irq_domain_is_ipi_per_cpu(struct irq_domain *domain)
+{
+	return false;
+}
+
+static inline bool irq_domain_is_ipi_single(struct irq_domain *domain)
+{
+	return false;
+}
 #endif	/* CONFIG_IRQ_DOMAIN_HIERARCHY */
 
 #else /* CONFIG_IRQ_DOMAIN */
-- 
2.1.0

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/