Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

[safe/jmp/linux-2.6] / arch / mips / kernel / signal-common.h

diff --git a/arch/mips/kernel/signal-common.h b/arch/mips/kernel/signal-common.h
index 03d2b60..10263b4 100644 (file)
--- a/arch/mips/kernel/signal-common.h
+++ b/arch/mips/kernel/signal-common.h
@@ -11,20 +11,31 @@
 #ifndef __SIGNAL_COMMON_H
 #define __SIGNAL_COMMON_H
 
-/*
- * handle hardware context
- */
-extern int setup_sigcontext(struct pt_regs *, struct sigcontext __user *);
-extern int restore_sigcontext(struct pt_regs *, struct sigcontext __user *);
+/* #define DEBUG_SIG */
+
+#ifdef DEBUG_SIG
+#  define DEBUGP(fmt, args...) printk("%s: " fmt, __func__, ##args)
+#else
+#  define DEBUGP(fmt, args...)
+#endif
+
+#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
 
 /*
  * Determine which stack to use..
  */
 extern void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
                                 size_t frame_size);
-/*
- * install trampoline code to get back from the sig handler
- */
-extern int install_sigtramp(unsigned int __user *tramp, unsigned int syscall);
+/* Check and clear pending FPU exceptions in saved CSR */
+extern int fpcsr_pending(unsigned int __user *fpcsr);
+
+/* Make sure we will not lose FPU ownership */
+#ifdef CONFIG_PREEMPT
+#define lock_fpu_owner()       preempt_disable()
+#define unlock_fpu_owner()     preempt_enable()
+#else
+#define lock_fpu_owner()       pagefault_disable()
+#define unlock_fpu_owner()     pagefault_enable()
+#endif
 
 #endif /* __SIGNAL_COMMON_H */