diff options
Diffstat (limited to 'arch/m68knommu/platform/5307/entry.S')
| -rw-r--r-- | arch/m68knommu/platform/5307/entry.S | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/arch/m68knommu/platform/5307/entry.S b/arch/m68knommu/platform/5307/entry.S index c358aebe0af3..a8cd867805ca 100644 --- a/arch/m68knommu/platform/5307/entry.S +++ b/arch/m68knommu/platform/5307/entry.S @@ -213,16 +213,12 @@ ENTRY(ret_from_interrupt) * Beware - when entering resume, prev (the current task) is * in a0, next (the new task) is in a1,so don't change these * registers until their contents are no longer needed. + * This is always called in supervisor mode, so don't bother to save + * and restore sr; user's process sr is actually in the stack. */ ENTRY(resume) movel %a0, %d1 /* get prev thread in d1 */ - movew %sr,%d0 /* save thread status reg */ - movew %d0,%a0@(TASK_THREAD+THREAD_SR) - - oril #0x700,%d0 /* disable interrupts */ - move %d0,%sr - movel sw_usp,%d0 /* save usp */ movel %d0,%a0@(TASK_THREAD+THREAD_USP) @@ -233,7 +229,4 @@ ENTRY(resume) movel %a1@(TASK_THREAD+THREAD_USP),%a0 /* restore thread user stack */ movel %a0, sw_usp - - movew %a1@(TASK_THREAD+THREAD_SR),%d0 /* restore thread status reg */ - movew %d0, %sr rts |