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[RFC,02/11] arm/arm64: irq enable/disable

Message ID 1456492533-17171-3-git-send-email-alex.bennee@linaro.org (mailing list archive)
State New, archived
Headers show

Commit Message

Alex Bennée Feb. 26, 2016, 1:15 p.m. UTC 
From: Andrew Jones <drjones@redhat.com>

Signed-off-by: Andrew Jones <drjones@redhat.com>
---
 lib/arm/asm/processor.h   | 10 ++++++++++
 lib/arm64/asm/processor.h | 10 ++++++++++
 2 files changed, 20 insertions(+)
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Patch

diff --git a/lib/arm/asm/processor.h b/lib/arm/asm/processor.h
index f25e7ee..a3a4e0b 100644
--- a/lib/arm/asm/processor.h
+++ b/lib/arm/asm/processor.h
@@ -33,6 +33,16 @@  static inline unsigned long current_cpsr(void)
 
 #define current_mode() (current_cpsr() & MODE_MASK)
 
+static inline void local_irq_enable(void)
+{
+	asm volatile("cpsie i" : : : "memory", "cc");
+}
+
+static inline void local_irq_disable(void)
+{
+	asm volatile("cpsid i" : : : "memory", "cc");
+}
+
 static inline unsigned int get_mpidr(void)
 {
 	unsigned int mpidr;
diff --git a/lib/arm64/asm/processor.h b/lib/arm64/asm/processor.h
index 84d5c7c..18fa2a2 100644
--- a/lib/arm64/asm/processor.h
+++ b/lib/arm64/asm/processor.h
@@ -66,6 +66,16 @@  static inline unsigned long current_level(void)
 	return el & 0xc;
 }
 
+static inline void local_irq_enable(void)
+{
+	asm volatile("msr daifclr, #2" : : : "memory");
+}
+
+static inline void local_irq_disable(void)
+{
+	asm volatile("msr daifset, #2" : : : "memory");
+}
+
 #define DEFINE_GET_SYSREG32(reg)				\
 static inline unsigned int get_##reg(void)			\
 {								\