diff options
| author | Miod Vallat <miod@cvs.openbsd.org> | 2007-10-24 21:02:01 +0000 |
|---|---|---|
| committer | Miod Vallat <miod@cvs.openbsd.org> | 2007-10-24 21:02:01 +0000 |
| commit | ba6255ef84dfb695e7683ea5e76e03ac6bf4689a (patch) | |
| tree | 97200e389135e5f0c5a5d11167bd789204017e79 /sys/arch | |
| parent | 5ee512f1ad938e9fec81934f52689f74ddce84d0 (diff) | |
Rely on 16 byte pcb alignment, and use double loads and stores during
context switches. Should have been commited ages ago (when pcb alignment
was fixed). No functional change.
Diffstat (limited to 'sys/arch')
| -rw-r--r-- | sys/arch/m88k/m88k/process.S | 62 |
1 files changed, 21 insertions, 41 deletions
diff --git a/sys/arch/m88k/m88k/process.S b/sys/arch/m88k/m88k/process.S index a0d4eec97d4..b124cd474be 100644 --- a/sys/arch/m88k/m88k/process.S +++ b/sys/arch/m88k/m88k/process.S @@ -1,4 +1,4 @@ -/* $OpenBSD: process.S,v 1.18 2007/10/13 12:54:45 miod Exp $ */ +/* $OpenBSD: process.S,v 1.19 2007/10/24 21:02:00 miod Exp $ */ /* * Copyright (c) 1996 Nivas Madhur * All rights reserved. @@ -73,30 +73,20 @@ ENTRY(cpu_switchto) ld r10, r10, CI_CURPCB /* restore from the current context */ - ld r2, r10, PCB_FCR62 - ld r3, r10, PCB_FCR63 + ld.d r2, r10, PCB_FCR62 fstcr r2, fcr62 fstcr r3, fcr63 - ld r15, r10, PCB_R15 - ld r16, r10, PCB_R16 - ld r17, r10, PCB_R17 - ld r18, r10, PCB_R18 - ld r19, r10, PCB_R19 - ld r20, r10, PCB_R20 - ld r21, r10, PCB_R21 - ld r22, r10, PCB_R22 - ld r23, r10, PCB_R23 - ld r24, r10, PCB_R24 - ld r25, r10, PCB_R25 - ld r26, r10, PCB_R26 - ld r27, r10, PCB_R27 - ld r28, r10, PCB_R28 - ld r29, r10, PCB_R29 - ld r30, r10, PCB_R30 /* restore frame pointer & stack */ - ld r31, r10, PCB_SP ld r1, r10, PCB_PC + ld.d r14, r10, PCB_R14 + ld.d r16, r10, PCB_R16 + ld.d r18, r10, PCB_R18 + ld.d r20, r10, PCB_R20 + ld.d r22, r10, PCB_R22 + ld.d r24, r10, PCB_R24 + ld.d r26, r10, PCB_R26 + ld.d r28, r10, PCB_R28 jmp.n r1 - ld r14, r10, PCB_R14 + ld.d r30, r10, PCB_R30 /* restore frame pointer & stack */ /* * savectx(pcb) @@ -108,30 +98,20 @@ ENTRY(savectx) */ st r1, r2, PCB_PC /* save return address */ ASLOCAL(__savectx) - st r14, r2, PCB_R14 - st r15, r2, PCB_R15 - st r16, r2, PCB_R16 - st r17, r2, PCB_R17 - st r18, r2, PCB_R18 - st r19, r2, PCB_R19 - st r20, r2, PCB_R20 - st r21, r2, PCB_R21 - st r22, r2, PCB_R22 - st r23, r2, PCB_R23 - st r24, r2, PCB_R24 - st r25, r2, PCB_R25 - st r26, r2, PCB_R26 - st r27, r2, PCB_R27 - st r28, r2, PCB_R28 - st r29, r2, PCB_R29 - st r30, r2, PCB_R30 /* save frame pointer & stack pointer */ - st r31, r2, PCB_SP + st.d r14, r2, PCB_R14 + st.d r16, r2, PCB_R16 + st.d r18, r2, PCB_R18 + st.d r20, r2, PCB_R20 + st.d r22, r2, PCB_R22 + st.d r24, r2, PCB_R24 + st.d r26, r2, PCB_R26 + st.d r28, r2, PCB_R28 + st.d r30, r2, PCB_R30 /* save frame pointer & stack pointer */ /* * Save FP state. */ fldcr r4, fcr62 fldcr r5, fcr63 - st r4, r2, PCB_FCR62 jmp.n r1 - st r5, r2, PCB_FCR63 + st.d r4, r2, PCB_FCR62 |