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[kvm-unit-tests,v8,04/10] arm/arm64: irq enable/disable

Message ID 20161208175030.12269-5-drjones@redhat.com
State New
Headers show

Commit Message

Andrew Jones Dec. 8, 2016, 5:50 p.m. UTC 
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

Reviewed-by: Eric Auger <eric.auger@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(+)

-- 
2.9.3
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Patch

diff --git a/lib/arm/asm/processor.h b/lib/arm/asm/processor.h
index 857bdd96a3cc..6dc1472468dd 100644
--- a/lib/arm/asm/processor.h
+++ b/lib/arm/asm/processor.h
@@ -35,6 +35,16 @@  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");
+}
+
 #define MPIDR __ACCESS_CP15(c0, 0, c0, 5)
 static inline unsigned int get_mpidr(void)
 {
diff --git a/lib/arm64/asm/processor.h b/lib/arm64/asm/processor.h
index 0898d89f9761..f42f15c79d43 100644
--- a/lib/arm64/asm/processor.h
+++ b/lib/arm64/asm/processor.h
@@ -68,6 +68,16 @@  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");
+}
+
 static inline unsigned int get_mpidr(void)
 {
 	return read_sysreg(mpidr_el1);