diff options
| author | Mark Kettenis <kettenis@cvs.openbsd.org> | 2011-08-07 22:35:54 +0000 |
|---|---|---|
| committer | Mark Kettenis <kettenis@cvs.openbsd.org> | 2011-08-07 22:35:54 +0000 |
| commit | 529a8d9b926cbb89a03affe7ffa00d67eaff6747 (patch) | |
| tree | 9ba7bcd51b5a1423360f3a55f66df612a3934c63 /sys | |
| parent | 237c529eeee6f122beb9685bca5bca2a10d1551f (diff) | |
A few more fixes to the lazy FPU context switching code.
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/arch/hppa64/hppa64/locore.S | 36 |
1 files changed, 17 insertions, 19 deletions
diff --git a/sys/arch/hppa64/hppa64/locore.S b/sys/arch/hppa64/hppa64/locore.S index ba3af2d4be0..07e3037670c 100644 --- a/sys/arch/hppa64/hppa64/locore.S +++ b/sys/arch/hppa64/hppa64/locore.S @@ -1,4 +1,4 @@ -/* $OpenBSD: locore.S,v 1.32 2011/08/07 20:48:48 kettenis Exp $ */ +/* $OpenBSD: locore.S,v 1.33 2011/08/07 22:35:53 kettenis Exp $ */ /* * Copyright (c) 2005 Michael Shalayeff @@ -1178,7 +1178,7 @@ ENTRY(TLABEL(excpt),0) copy %rp, %r1 copy %arg0, %r8 mfctl %cr30, %r9 -#if FP_REGS != 0 +#if HFP_REGS != 0 ldo HFP_REGS(%r9), %r9 #endif .import fpu_save, code @@ -1187,9 +1187,12 @@ ENTRY(TLABEL(excpt),0) copy %r9, %arg0 copy %r1, %rp copy %r8, %arg0 + mfctl %cr24, %r1 mtctl %r0, %cr10 /* reset ccr: cause a reload after exception */ - ldil L%fpu_curpcb, %r1 - std %r0, R%fpu_curpcb(%r1) + ldd CI_FPU_STATE(%r1), %r16 + std %r0, CI_FPU_STATE(%r1) + std %r0, HFP_CPU(%r16) + sync /* now, check for trap */ ldw 0(%r9), %r1 @@ -1253,13 +1256,17 @@ ENTRY(TLABEL(emu),0) /* if we are already enabled and hit again, emulate */ mfctl %cr10, %r1 /* ccr */ - extru,<> %r1, 25, 2, %r0 + extrd,u,*<> %r1, 57, 2, %r0 b,n $fpusw_set nop $fpusw_emu + mfctl %cr24, %r1 mtctl %r0, %cr10 /* reset ccr: cause a reload after exception */ - std %r0, R%fpu_curpcb(%r1) + ldd CI_FPU_STATE(%r1), %r16 + std %r0, CI_FPU_STATE(%r1) + std %r0, HFP_CPU(%r16) + sync #if TODO_emulate /* here we emulate the fld/fst */ mfctl %iir, %r1 @@ -1280,9 +1287,10 @@ $fpusw_emu b TLABEL(all) ldi T_ILLEGAL, %r1 #endif + $fpusw_set /* enable coprocessor */ - depdi 3, 37, 2, %r1 + depdi 3, 57, 2, %r1 mtctl %r1, %cr10 /* ccr */ mfctl %cr24, %r16 @@ -1352,13 +1360,13 @@ $fpusw_nosave sync $fpusw_done - rfir + rfi,r nop EXIT(TLABEL(emu)) LEAF_ENTRY(fpu_exit) /* enable coprocessor XXX */ - depi 3, 25, 2, %r1 + depdi 3, 57, 2, %r1 mtctl %r1, %cr10 ldil L%fpu_scratch, %r25 @@ -1402,16 +1410,6 @@ LEAF_ENTRY(fpu_save) fstds,ma %fr29, 8(%arg0) fstds,ma %fr30, 8(%arg0) fstds %fr31, 0(%arg0) - ldo -24(%arg0), %arg0 - ldi -32, %r25 /* gotta be free for all callers */ - fdc,m %r25(%arg0) - fdc,m %r25(%arg0) - fdc,m %r25(%arg0) - fdc,m %r25(%arg0) - fdc,m %r25(%arg0) - fdc,m %r25(%arg0) - fdc,m %r25(%arg0) - fdc,m %r25(%arg0) bv %r0(%rp) sync EXIT(fpu_save) |