From: Julien Thierry <julien.thierry@arm.com>
To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Cc: mark.rutland@arm.com, marc.zyngier@arm.com, james.morse@arm.com,
daniel.thompson@linaro.org,
Julien Thierry <julien.thierry@arm.com>,
Thomas Gleixner <tglx@linutronix.de>,
Jason Cooper <jason@lakedaemon.net>
Subject: [PATCH v2 4/6] irqchip/gic: Add functions to access irq priorities
Date: Wed, 17 Jan 2018 11:54:42 +0000 [thread overview]
Message-ID: <1516190084-18978-5-git-send-email-julien.thierry@arm.com> (raw)
In-Reply-To: <1516190084-18978-1-git-send-email-julien.thierry@arm.com>
Add functions to read/write priorities to the GIC [re]distributor.
Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
---
drivers/irqchip/irq-gic-common.c | 10 ++++++++++
drivers/irqchip/irq-gic-common.h | 2 ++
2 files changed, 12 insertions(+)
diff --git a/drivers/irqchip/irq-gic-common.c b/drivers/irqchip/irq-gic-common.c
index 30017df..1dfa60b 100644
--- a/drivers/irqchip/irq-gic-common.c
+++ b/drivers/irqchip/irq-gic-common.c
@@ -91,6 +91,16 @@ int gic_configure_irq(unsigned int irq, unsigned int type,
return ret;
}
+void gic_set_irq_prio(unsigned int irq, void __iomem *base, u8 prio)
+{
+ writeb_relaxed(prio, base + GIC_DIST_PRI + irq);
+}
+
+u8 gic_get_irq_prio(unsigned int irq, void __iomem *base)
+{
+ return readb_relaxed(base + GIC_DIST_PRI + irq);
+}
+
void gic_dist_config(void __iomem *base, int gic_irqs,
void (*sync_access)(void))
{
diff --git a/drivers/irqchip/irq-gic-common.h b/drivers/irqchip/irq-gic-common.h
index 3919cd7..1586dbd 100644
--- a/drivers/irqchip/irq-gic-common.h
+++ b/drivers/irqchip/irq-gic-common.h
@@ -35,6 +35,8 @@ void gic_dist_config(void __iomem *base, int gic_irqs,
void gic_cpu_config(void __iomem *base, void (*sync_access)(void));
void gic_enable_quirks(u32 iidr, const struct gic_quirk *quirks,
void *data);
+void gic_set_irq_prio(unsigned int irq, void __iomem *base, u8 prio);
+u8 gic_get_irq_prio(unsigned int irq, void __iomem *base);
void gic_set_kvm_info(const struct gic_kvm_info *info);
--
1.9.1
next prev parent reply other threads:[~2018-01-17 11:55 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-17 11:54 [PATCH v2 0/6] arm64: provide pseudo NMI with GICv3 Julien Thierry
2018-01-17 11:54 ` [PATCH v2 1/6] arm64: cpufeature: Allow early detect of specific features Julien Thierry
2018-01-22 12:05 ` Suzuki K Poulose
2018-01-22 12:21 ` Julien Thierry
2018-01-22 13:38 ` Daniel Thompson
2018-01-22 13:57 ` Marc Zyngier
2018-01-22 14:14 ` Julien Thierry
2018-01-22 14:20 ` Marc Zyngier
2018-01-22 14:45 ` Suzuki K Poulose
2018-01-22 15:01 ` Julien Thierry
2018-01-22 15:13 ` Suzuki K Poulose
2018-01-22 15:23 ` Julien Thierry
2018-01-22 15:34 ` Suzuki K Poulose
2018-01-17 11:54 ` [PATCH v2 2/6] arm64: alternative: Apply alternatives early in boot process Julien Thierry
2018-05-04 10:06 ` Julien Thierry
2018-05-09 14:27 ` Daniel Thompson
2018-05-09 21:52 ` Suzuki K Poulose
2018-05-11 8:12 ` Julien Thierry
2018-05-11 9:19 ` Suzuki K Poulose
2018-01-17 11:54 ` [PATCH v2 3/6] arm64: irqflags: Use ICC sysregs to implement IRQ masking Julien Thierry
2018-01-17 11:54 ` Julien Thierry [this message]
2018-01-17 11:54 ` [PATCH v2 5/6] arm64: Detect current view of GIC priorities Julien Thierry
2018-02-03 3:01 ` Yang Yingliang
2018-01-17 11:54 ` [PATCH v2 6/6] arm64: Add support for pseudo-NMIs Julien Thierry
2018-01-17 12:10 ` [PATCH v2 0/6] arm64: provide pseudo NMI with GICv3 Julien Thierry
2018-04-29 6:37 ` Joel Fernandes
2018-04-30 9:53 ` Julien Thierry
2018-04-30 10:55 ` Daniel Thompson
2018-05-01 18:18 ` Joel Fernandes
2018-05-02 11:02 ` Daniel Thompson
2018-04-29 6:35 ` Joel Fernandes
2018-04-30 9:46 ` Julien Thierry
2018-05-01 20:51 ` Joel Fernandes
2018-05-02 11:08 ` Marc Zyngier
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