arm: header files

A simple implementation of everything under asm-arm and arch-arm.h; some
of these files are shamelessly taken from Linux.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>

1 files changed, 28 insertions, 0 deletions

diff --git a/xen/include/asm-arm/hardirq.h b/xen/include/asm-arm/hardirq.h
new file mode 100644
index 0000000000..9c031a803a
--- /dev/null
+++ b/xen/include/asm-arm/hardirq.h
@@ -0,0 +1,28 @@
+#ifndef __ASM_HARDIRQ_H
+#define __ASM_HARDIRQ_H
+
+#include <xen/config.h>
+#include <xen/cache.h>
+#include <xen/smp.h>
+
+typedef struct {
+        unsigned long __softirq_pending;
+        unsigned int __local_irq_count;
+} __cacheline_aligned irq_cpustat_t;
+
+#include <xen/irq_cpustat.h>    /* Standard mappings for irq_cpustat_t above */
+
+#define in_irq() (local_irq_count(smp_processor_id()) != 0)
+
+#define irq_enter()     (local_irq_count(smp_processor_id())++)
+#define irq_exit()      (local_irq_count(smp_processor_id())--)
+
+#endif /* __ASM_HARDIRQ_H */
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */