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authorIngo Molnar <mingo@elte.hu>2008-10-15 13:46:29 +0200
committerIngo Molnar <mingo@elte.hu>2008-10-15 13:46:29 +0200
commitb2aaf8f74cdc84a9182f6cabf198b7763bcb9d40 (patch)
tree53ccb1c2c14751fe69cf93102e76e97021f6df07 /arch/blackfin/include/asm/hardirq.h
parent4f962d4d65923d7b722192e729840cfb79af0a5a (diff)
parent278429cff8809958d25415ba0ed32b59866ab1a8 (diff)
Merge branch 'linus' into stackprotector
Conflicts: arch/x86/kernel/Makefile include/asm-x86/pda.h
Diffstat (limited to 'arch/blackfin/include/asm/hardirq.h')
-rw-r--r--arch/blackfin/include/asm/hardirq.h45
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/hardirq.h b/arch/blackfin/include/asm/hardirq.h
new file mode 100644
index 000000000000..b6b19f1b9dab
--- /dev/null
+++ b/arch/blackfin/include/asm/hardirq.h
@@ -0,0 +1,45 @@
+#ifndef __BFIN_HARDIRQ_H
+#define __BFIN_HARDIRQ_H
+
+#include <linux/cache.h>
+#include <linux/threads.h>
+#include <asm/irq.h>
+
+typedef struct {
+ unsigned int __softirq_pending;
+ unsigned int __syscall_count;
+ struct task_struct *__ksoftirqd_task;
+} ____cacheline_aligned irq_cpustat_t;
+
+#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
+
+/*
+ * We put the hardirq and softirq counter into the preemption
+ * counter. The bitmask has the following meaning:
+ *
+ * - bits 0-7 are the preemption count (max preemption depth: 256)
+ * - bits 8-15 are the softirq count (max # of softirqs: 256)
+ * - bits 16-23 are the hardirq count (max # of hardirqs: 256)
+ *
+ * - ( bit 26 is the PREEMPT_ACTIVE flag. )
+ *
+ * PREEMPT_MASK: 0x000000ff
+ * HARDIRQ_MASK: 0x0000ff00
+ * SOFTIRQ_MASK: 0x00ff0000
+ */
+
+#if NR_IRQS > 256
+#define HARDIRQ_BITS 9
+#else
+#define HARDIRQ_BITS 8
+#endif
+
+#ifdef NR_IRQS
+# if (1 << HARDIRQ_BITS) < NR_IRQS
+# error HARDIRQ_BITS is too low!
+# endif
+#endif
+
+#define __ARCH_IRQ_EXIT_IRQS_DISABLED 1
+
+#endif