[src/trunk]: src/sys/arch/sparc64/sparc64 sun4v: Hook up syscall handling to ...

[palle <palle%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/288e6334aa3b
branches:  trunk
changeset: 821265:288e6334aa3b
user:      palle <palle%NetBSD.org@localhost>
date:      Mon Jan 30 21:24:33 2017 +0000

description:
sun4v: Hook up syscall handling to the trap table. Verified using qemu for both sun4u and sun4v.

diffstat:

 sys/arch/sparc64/sparc64/locore.s |  20 +++++++++++++++++---
 1 files changed, 17 insertions(+), 3 deletions(-)

diffs (41 lines):

diff -r 458ccd84d93c -r 288e6334aa3b sys/arch/sparc64/sparc64/locore.s
--- a/sys/arch/sparc64/sparc64/locore.s Mon Jan 30 20:39:36 2017 +0000
+++ b/sys/arch/sparc64/sparc64/locore.s Mon Jan 30 21:24:33 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: locore.s,v 1.406 2017/01/27 21:35:38 palle Exp $       */
+/*     $NetBSD: locore.s,v 1.407 2017/01/30 21:24:33 palle Exp $       */
 
 /*
  * Copyright (c) 2006-2010 Matthew R. Green
@@ -1137,7 +1137,7 @@
        sun4v_trap_entry_spill_fill_fail 1                      ! 0x0f4 fill_5_other
        sun4v_trap_entry_spill_fill_fail 1                      ! 0x0f8 fill_6_other
        sun4v_trap_entry_spill_fill_fail 1                      ! 0x0fc fill_7_other
-       sun4v_trap_entry 1                                      ! 0x100
+       SYSCALL                                                 ! 0x100 = syscall
        BPT                                                     ! 0x101 = pseudo breakpoint instruction
        sun4v_trap_entry 254                                    ! 0x102-0x1ff
        !
@@ -3676,7 +3676,21 @@
        sth     %o1, [%sp + CC64FSZ + STKB + TF_TT]! debug
 #endif
 
-       wrpr    %g0, PSTATE_KERN, %pstate       ! Get back to normal globals
+       ! Get back to normal globals
+#ifdef SUN4V
+       sethi   %hi(cputyp), %g5
+       ld      [%g5 + %lo(cputyp)], %g5
+       cmp     %g5, CPU_SUN4V
+       bne,pt  %icc, 1f
+        nop
+       NORMAL_GLOBALS_SUN4V
+       ba      2f
+        nop
+1:     
+#endif 
+       NORMAL_GLOBALS_SUN4U
+2:
+       
        stx     %g1, [%sp + CC64FSZ + STKB + TF_G + ( 1*8)]
        mov     %g1, %o1                        ! code
        rdpr    %tpc, %o2                       ! (pc)