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authorPaul Mundt <lethal@linux-sh.org>2006-09-27 18:22:14 +0900
committerPaul Mundt <lethal@linux-sh.org>2006-09-27 18:22:14 +0900
commita6a31139897a5e539efe7ad3b7bd351fa9673ce8 (patch)
tree6e2ad11d93ab95214694038080c79284c6da30d6 /include/asm-sh/irq.h
parent2cb7ce3bb384f30a377f66336c78546b834604df (diff)
downloadop-kernel-dev-a6a31139897a5e539efe7ad3b7bd351fa9673ce8.zip
op-kernel-dev-a6a31139897a5e539efe7ad3b7bd351fa9673ce8.tar.gz
sh: Add support for 4K stacks.
This enables support for 4K stacks on SH. Currently this depends on DEBUG_KERNEL, but likely all boards will switch to this as the default in the future. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include/asm-sh/irq.h')
-rw-r--r--include/asm-sh/irq.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/asm-sh/irq.h b/include/asm-sh/irq.h
index dd05e10..0e5f365 100644
--- a/include/asm-sh/irq.h
+++ b/include/asm-sh/irq.h
@@ -719,6 +719,15 @@ static inline int generic_irq_demux(int irq)
#define irq_canonicalize(irq) (irq)
#define irq_demux(irq) __irq_demux(sh_mv.mv_irq_demux(irq))
+#ifdef CONFIG_4KSTACKS
+extern void irq_ctx_init(int cpu);
+extern void irq_ctx_exit(int cpu);
+# define __ARCH_HAS_DO_SOFTIRQ
+#else
+# define irq_ctx_init(cpu) do { } while (0)
+# define irq_ctx_exit(cpu) do { } while (0)
+#endif
+
#if defined(CONFIG_CPU_SUBTYPE_SH73180)
#include <asm/irq-sh73180.h>
#endif
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