5 files changed, 12 insertions, 16 deletions

diff --git a/include/asm-sparc64/psrcompat.h b/include/asm-sparc64/psrcompat.h
index 5590ce6bd076..3614ca04753f 100644
--- a/include/asm-sparc64/psrcompat.h
+++ b/include/asm-sparc64/psrcompat.h
@@ -12,6 +12,7 @@
 #define PSR_PIL     0x00000f00         /* processor interrupt level  */
 #define PSR_EF      0x00001000         /* enable floating point      */
 #define PSR_EC      0x00002000         /* enable co-processor        */
+#define PSR_SYSCALL 0x00004000         /* inside of a syscall        */
 #define PSR_LE      0x00008000         /* SuperSparcII little-endian */
 #define PSR_ICC     0x00f00000         /* integer condition codes    */
 #define PSR_C       0x00100000         /* carry bit                  */
@@ -30,6 +31,7 @@ static inline unsigned int tstate_to_psr(unsigned long tstate)
                 PSR_S                                   |
                 ((tstate & TSTATE_ICC) >> 12)           |
                 ((tstate & TSTATE_XCC) >> 20)           |
+                ((tstate & TSTATE_SYSCALL) ? PSR_SYSCALL : 0) |
                 PSR_V8PLUS);
 }
 
diff --git a/include/asm-sparc64/pstate.h b/include/asm-sparc64/pstate.h
index f3c45484c636..949aebaf991d 100644
--- a/include/asm-sparc64/pstate.h
+++ b/include/asm-sparc64/pstate.h
@@ -62,6 +62,7 @@
 #define TSTATE_PRIV     _AC(0x0000000000000400,UL) /* Privilege.        */
 #define TSTATE_IE       _AC(0x0000000000000200,UL) /* Interrupt Enable. */
 #define TSTATE_AG       _AC(0x0000000000000100,UL) /* Alternate Globals.*/
+#define TSTATE_SYSCALL  _AC(0x0000000000000020,UL) /* in syscall trap   */
 #define TSTATE_CWP      _AC(0x000000000000001f,UL) /* Curr Win-Pointer. */
 
 /* Floating-Point Registers State Register.
diff --git a/include/asm-sparc64/ptrace.h b/include/asm-sparc64/ptrace.h
index 823656559d1a..90972a5ada59 100644
--- a/include/asm-sparc64/ptrace.h
+++ b/include/asm-sparc64/ptrace.h
@@ -42,16 +42,14 @@ static inline int pt_regs_trap_type(struct pt_regs *regs)
         return regs->magic & 0x1ff;
 }
 
-static inline int pt_regs_clear_trap_type(struct pt_regs *regs)
+static inline bool pt_regs_is_syscall(struct pt_regs *regs)
 {
-        return regs->magic &= ~0x1ff;
+        return (regs->tstate & TSTATE_SYSCALL);
 }
 
-static inline bool pt_regs_is_syscall(struct pt_regs *regs)
+static inline bool pt_regs_clear_syscall(struct pt_regs *regs)
 {
-        int tt = pt_regs_trap_type(regs);
-
-        return (tt == 0x110 || tt == 0x111 || tt == 0x16d);
+        return (regs->tstate &= ~TSTATE_SYSCALL);
 }
 
 struct pt_regs32 {
diff --git a/include/asm-sparc64/signal.h b/include/asm-sparc64/signal.h
index fa6f467389db..c49f32d38707 100644
--- a/include/asm-sparc64/signal.h
+++ b/include/asm-sparc64/signal.h
@@ -186,13 +186,7 @@ struct k_sigaction {
         void __user             *ka_restorer;
 };
 
-struct signal_deliver_cookie {
-        int restart_syscall;
-        unsigned long orig_i0;
-};
-
-struct pt_regs;
-extern void ptrace_signal_deliver(struct pt_regs *regs, void *cookie);
+#define ptrace_signal_deliver(regs, cookie) do { } while (0)
 
 #endif /* !(__KERNEL__) */
 
diff --git a/include/asm-sparc64/ttable.h b/include/asm-sparc64/ttable.h
index 1b55538b944f..52d67d394107 100644
--- a/include/asm-sparc64/ttable.h
+++ b/include/asm-sparc64/ttable.h
@@ -91,13 +91,14 @@
          nop;
         
 #define SYSCALL_TRAP(routine, systbl)                   \
+        rdpr    %pil, %g2;                              \
+        mov     TSTATE_SYSCALL, %g3;                    \
         sethi   %hi(109f), %g7;                         \
-        ba,pt   %xcc, etrap;                            \
+        ba,pt   %xcc, etrap_syscall;                    \
 109:     or     %g7, %lo(109b), %g7;                    \
         sethi   %hi(systbl), %l7;                       \
         ba,pt   %xcc, routine;                          \
-         or     %l7, %lo(systbl), %l7;                  \
-        nop; nop;
+         or     %l7, %lo(systbl), %l7;
         
 #define TRAP_UTRAP(handler,lvl)                         \
         mov     handler, %g3;                           \