MIPS: Use per-mm page to execute branch delay slot instructions

[cascardo/linux.git] / arch / mips / include / asm / mmu.h

diff --git a/arch/mips/include/asm/mmu.h b/arch/mips/include/asm/mmu.h
index 1afa1f9..f6ba08d 100644 (file)
--- a/arch/mips/include/asm/mmu.h
+++ b/arch/mips/include/asm/mmu.h
@@ -2,11 +2,20 @@
 #define __ASM_MMU_H
 
 #include <linux/atomic.h>
+#include <linux/spinlock.h>
+#include <linux/wait.h>
 
 typedef struct {
        unsigned long asid[NR_CPUS];
        void *vdso;
        atomic_t fp_mode_switching;
+
+       /* lock to be held whilst modifying fp_bd_emupage_allocmap */
+       spinlock_t bd_emupage_lock;
+       /* bitmap tracking allocation of fp_bd_emupage */
+       unsigned long *bd_emupage_allocmap;
+       /* wait queue for threads requiring an emuframe */
+       wait_queue_head_t bd_emupage_queue;
 } mm_context_t;
 
 #endif /* __ASM_MMU_H */